Academic literature on the topic 'Supercharger'

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Journal articles on the topic "Supercharger"

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Radu, Sebastian, Marius Hârceagă, Gheorghe Alexandru Radu, Cristian Leahu, Horia Abăităncei, and Marton Iakab-Peter. "Simulation Models of the Complex Type Pressure Wave Supercharger." Applied Mechanics and Materials 823 (January 2016): 341–46. http://dx.doi.org/10.4028/www.scientific.net/amm.823.341.

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In order to efficiently supercharge Diesel engines with pressure wave superchargers it is necessary to correlate the superchargers rotation speed with certain parameters of the supercharged engine. For this purpose, to reduce the research costs and duration, simulation models can be used which help to determine the parameters which have a major impact on the supercharger's rotational speed and efficiency. In this paper there are presented two simulation models: a one-dimensional (made in AMESim software) and a three dimensional (made in Fluent Software). This simulation models offer the possibility to visualize some dynamic phenomenon within the supercharger, like the evolution of the pressure waves or the turbulent flow inside the rotor channels. These phenomena are difficult and expensive to study with conventional methods.
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Leahu, Cristian Ioan, Anghel Chiru, and Stelian Tarulescu. "A Modality to Optimize Common Functioning of a Pressure Wave Supercharger with an Internal Combustion Engine." Applied Mechanics and Materials 772 (July 2015): 350–54. http://dx.doi.org/10.4028/www.scientific.net/amm.772.350.

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The functional constructive variants of the Hyprex and Comprex compressors with pressure wave built until the present are reduced in number. Starting from this ascertainment, the paper proposes to highlight the optimization on joint functioning of existing pressure wave supercharger models with internal combustion engines. This is possible due to the efficiency of the supercharging process, realized with such superchargers, which depends on the correlation grade between the rotational speed of the supercharger and the pressure of the exhaust gasses that enter in the compressor's channels, reason due to, a single supercharger model can be capable to supercharge efficiently engines with different characteristics, if the optimal values for the driving speed of the pressure wave supercharger are identified (according to the method proposed in the work) and adapted (according the level of energetic and/or ecologic performances that the engine should achieve) for each type of engine apart.
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Leahu, Cristian Ioan, Anghel Chiru, Dan Dogariu, and Gabriel Mitroi. "Dual Supercharging with Turbocharger and Pressure Wave Supercharger." Applied Mechanics and Materials 823 (January 2016): 329–34. http://dx.doi.org/10.4028/www.scientific.net/amm.823.329.

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TThe efficiency of the turbochargers is not satisfactory while the supercharged engine is working at low speeds. The dual supercharging can represent a solution to improve the supercharging process efficiency of the turbochargers. Due to the different functioning principles of the turbochargers and the pressure wave superchargers, this compressors are not having the same efficiency when the engines is running at a certain speed. The pressure wave superchargers can operate with a satisfactory efficiency at low-medium engine speeds. For this reason the dual supercharging with turbocharger-pressure wave supercharger is making the supercharging processes applied on engines more efficient. The two supercharging compressors are compressing the intake air by using a part of the exhaust gases energy. Due to the pressure wave supercharger rotor is having only gas distribution role, the power needed to drive it is reduced. The driving of the rotor can be realized by the crankshaft or by an electric motor.
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Wang, Tao, Bo Li, QiangQiang Peng, ZhiLong He, and XueYuan Peng. "Flow Field Simulation and Noise Control of a Twin-Screw Engine-Driven Supercharger." Mathematical Problems in Engineering 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/9696858.

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With the advantages of good low-speed torque capability and excellent instant response performance, twin-screw superchargers have great potential in the automobile market, but the noise of these superchargers is the main factor that discourages their use. Therefore, it is important to study their noise mechanism and methods of reducing it. This study included a transient numerical simulation of a twin-screw supercharger flow field with computational fluid dynamics software and an analysis of the pressure field of the running rotor. The results showed that overcompression was significant in the compression end stage of the supercharger, resulting in a surge in airflow to a supersonic speed and the production of shock waves that resulted in loud noise. On the basis of these findings, optimization of the supercharger is proposed, including expansion of the supercharger exhaust orifice and creation of a slot along the direction of the rotor spiral normal line at the exhaust port, so as to reduce the compression end pressure, improve the exhaust flow channel, and weaken the source of the noise. Experimental results showed that the noise level value of the improved twin-screw supercharger was significantly lower at the same speed than the original model, with an average decrease of about 5 dB (A).
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Merala, Raymond, Mont Hubbard, and Takashi Miyano. "Modeling and Simulation of a Supercharger." Journal of Dynamic Systems, Measurement, and Control 110, no. 3 (September 1, 1988): 316–23. http://dx.doi.org/10.1115/1.3152688.

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A dynamic model is developed for simulating and predicting performance for superchargers of relatively arbitrary geometric configuration. A thermodynamic control volume approach and bond graph models are used to derive continuity and energy equations linking the various control volumes. Bond graphs also serve to study and understand the causal implications of laws governing flows between control volumes and system dynamics. Heat transfer is neglected. Simulation outputs include time histories of pressure, temperature, mass, and energy associated with each control volume, time histories of the various flows in the supercharger, and overall volumetric efficiency. Volumetric efficiencies are predicted over a wide range of speed/pressure ratio combinations and are within three percent of experimentally measured values. The simulation is used to investigate the sensitivity of supercharger performance to several key design parameters, including rotor-rotor separation, and rotor-housing and side plate clearance distances.
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He, Yongsheng, David Sun, Jim Liu, and Bin Zhu. "Optimization of a turbocharger and supercharger compound boosting system for a Miller cycle engine." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 2 (March 14, 2017): 238–53. http://dx.doi.org/10.1177/0954407017695136.

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This paper describes the design optimization of a compound boosting system consisting of a turbocharger and a supercharger for a 2.0 l four-cylinder Miller cycle engine which has a high expansion ratio of 12.0:1 and variable valve actuation. Various system configurations and supercharger sizes were evaluated numerically and experimentally to reduce the supercharger power consumption and the engine fuel consumption while maintaining the same engine torque performance in steady-state conditions. The supercharger–turbocharger boosting system with a V400 supercharger showed an average engine fuel consumption that was 2.8% lower in boosted conditions than did the turbocharger–supercharger boosting system with the same V400 supercharger; this was predicted by engine cycle simulations and verified by experiments. When the supercharger was placed upstream of the turbocharger, the supercharger inlet pressure was lower and the total mass flow rate through the supercharger was reduced, which reduced the supercharger power consumption and the bypass air flow. The turbocharger–supercharger boosting system with a smaller supercharger (R340 or V250) significantly improved the engine efficiency (by 3.3% or 5.0% respectively in comparison with the turbocharger–supercharger boosting system with a V400 supercharger), by reducing the mass air flow rates through the supercharger and minimizing the supercharger power consumption. The turbocharger–supercharger boosting system with a V250 supercharger achieved the lowest engine fuel consumption in full-load conditions of all the turbocharger and supercharger compound boosting system options evaluated for the 2.0 l Miller cycle engine on the basis of the simulation results. This study defined the optimal system layout and the optimal supercharger size for implementing the turbocharger and supercharger compound boosting system on a 2.0 l Miller cycle spark ignition engine to maximize the improvement in the fuel economy of the vehicle while maintaining the same torque performance.
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Hu, Bo, James WG Turner, Sam Akehurst, Chris Brace, and Colin Copeland. "Observations on and potential trends for mechanically supercharging a downsized passenger car engine:a review." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 231, no. 4 (August 5, 2016): 435–56. http://dx.doi.org/10.1177/0954407016636971.

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Engine downsizing is a proven approach for achieving a superior fuel efficiency. It is conventionally achieved by reducing the swept volume of the engine and by employing some means of increasing the specific output to achieve the desired installed engine power, usually in the form of an exhaust-driven turbocharger. However, because of the perceptible time needed for the turbocharger system to generate the required boost pressure, a characteristic of turbocharged engines is their degraded driveability in comparison with those of their naturally aspirated counterparts. Mechanical supercharging refers to the technology that compresses the intake air using the energy taken directly from the engine crankshaft. It is anticipated that engine downsizing which is realised either solely by a supercharger or by a combination of a supercharger and a turbocharger will enhance a vehicle’s driveability without significantly compromising the fuel consumption at an engine level compared with the downsizing by turbocharging. The capability of the supercharger system to eliminate the high exhaust back pressure, to reduce the pulsation interference and to mitigate the surge issue of a turbocharged engine in a compound-charging system offsets some of the fuel consumption penalty incurred in driving the supercharger. This, combined with an optimised down-speeding strategy, can further improve the fuel efficiency performance of a downsized engine while still enhancing its driveability and performance at a vehicle level. This paper first reviews the fundamentals and the types of supercharger that are currently used, or have been used, in passenger car engines. Next, the relationships between the downsizing, the driveability and the down-speeding are introduced to identify the improved synergies between the engine and the boosting machine. Then, mass production and prototype downsized supercharged passenger car engines are briefly described, followed by a detailed review of the current state-of-the-art supercharging technologies that are in production as opposed to the approaches that are currently only being investigated at a research level. Finally, the trends for mechanically supercharging a passenger car engine are discussed, with the aim of identifying potential development directions for the future. Enhancement of the low-end torque, improvement in the transient driveability and reduction in low-load parasitic losses are the three main development directions for a supercharger system, among which the adoption of a continuously variable transmission to decouple the supercharger speed from the engine speed, improvement of the compressor isentropic and volumetric efficiency and innovation of the supercharger mechanism seem to be the potential trend for mechanically supercharging a passenger car engine.
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Zhang, Peng Qi, Dong Hui Zhao, Peng Wu, and Yin Yan Wang. "465Q Gasoline Engine Turbocharger Matching and Performance Calculation." Advanced Materials Research 500 (April 2012): 223–29. http://dx.doi.org/10.4028/www.scientific.net/amr.500.223.

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This article take the Dongan 465Q non-supercharged engine as the research object, the simulation model is built by GT-POWER and the corresponding test bench is set up. The simulation error is less than 3%, which indicates that the parameters of this model is correct, and can be used for further study of the gasoline engine. The supercharger, Garrett GT12, is selected by the matching calculation. The non-supercharged 465Q engine is modified as a turbocharged engine. The test results show that the power and the fuel consumption of the turbocharged engine is improved obviously, whose power is increased by 48% and fuel consumption is reduced by 4%.
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Takagi, Yasuo, Takashi Nakanishi, Kouji Kawabe, and Norio Ogohi. "Supercharger Assist System for High Supercharged High Speed Marine Diesel Engine." JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN 35, no. 4 (2000): 280–84. http://dx.doi.org/10.5988/jime1966.35.280.

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Hu, Chun Xiao, Hua Bing Zhu, and Hui Juan Ye. "Simulator of Hydraulic Supercharger Based on Virual Instrument." Advanced Materials Research 548 (July 2012): 627–31. http://dx.doi.org/10.4028/www.scientific.net/amr.548.627.

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In order to build a platform for overhaul and simulation training of CCIS (Command Control Information System), the simulation model of the hydraulic supercharger was established. By the model the simulator of hydraulic supercharger was designed and developed based on virtual instrument technology and SCM (single chip microcomputer) technology, the software of the simulator which was designed by the LabWindows/CVI provided a virtual interface and the hardware of the simulator which was developed with the SCM system gave the correct signal. As a result, when the simulator of hydraulic supercharger was connected to the CCIS, the simulation result was realized to be consistent with the real hydraulic supercharger.
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Dissertations / Theses on the topic "Supercharger"

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Ilie, Katherine-Rodica, and Katherine ilie@rmit edu au. "Modelling, Simulation and Optimisation of Asymmetric Rotor Profiles in Twin-screw Superchargers." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080213.144857.

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There is a growing recognition worldwide of the need for more powerful, smaller petrol engines, capable of delivering the higher picking power of larger engines, yet still being economical and environmentally friendly when used for day-to-day driving. An engineering solution for more efficient engines has been considered by research so far. It has been identified that superchargers can potentially improve the performance of automotive engines; therefore research has focused on developing superchargers and supercharger components with higher efficiency. Of particular interest to the research presented in this thesis has been the twin-screw supercharging compressor with design adapted for automotive use (the twin-screw supercharger). The performance of this supercharger type depends on the volume and total losses of the air flow through the supercharger rotors more than on any other aspects of its behaviour. To accurately predict the efficiency of the twin-screw su percharger for matching a particular engine system, accurate supercharger design is required. The main objective of this research was the investigation of the existing limitations of twin-screw superchargers, in particular leakage and reduced efficiency, leading to the development of optimal asymmetric rotor profiles. This research has been completed in four stages defining an innovative rotor design method. The parametric three-dimensional geometric model of twin-screw supercharger rotors of any aspect ratio was developed. For model validation through visualisation, CAD rotor models with scalable data were generated in commercial CAD software and calibrated experimentally by Laser Doppler Velocimetry (LDV) tests. Calibrated rotor profile data can be transferred into CAD-CFD interface for flow simulation and performance optimisation. Through the application of this new rotor design method, new opportunities are created for the twin-screw supercharger design practice, making it a part of the engineering solution for more efficient engines.
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Colonna, Jacopo. "Sviluppo di un sistema di sovralimentazione assistito elettricamente per un motore diesel 3.0L V6 ad alta potenza specifica." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8758/.

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Questa tesi di laurea nasce dall’esperienza maturata presso l’azienda FCA Italy (Fiat Chrysler Automobiles S.p.A., ex VM Motori) nello stabilimento situato a Cento in provincia di Ferrara, in particolare all’interno dell’ufficio di Ricerca Avanzata CRM (Centro Ricerca Motori), divisione del reparto R&D (Research and Development). Tale esperienza viene riassunta (in piccola parte) in questo elaborato di Tesi, che tratta tematiche inerenti allo sviluppo di un sistema di sovralimentazione assistito elettricamente, applicato ad un propulsore Diesel 3.0L V6 destinato ai segmenti “Premium” del mercato. Il sistema utilizzato, che ha come componente principale un compressore attuato da una macchina elettrica, appartiene all’insieme delle tecnologie cosiddette di e-boosting. Questo tipo di tecnologia, fortemente innovativa e ad oggi non ancora presente sul mercato, ha le potenzialità per rappresentare un significativo passo avanti nel processo di riduzione delle emissioni, dei consumi e del miglioramento delle performance dei moderni motori endotermici alternativi, al punto che un numero crescente di costruttori di motori sta oggi studiando soluzioni come quella oggetto di questo elaborato. L’obiettivo è stato quindi quello di definire, applicare e gestire il sistema di e-boost a banco motore e, successivamente, caratterizzarlo dal punto di vista energetico e testarne le effettive potenzialità. Le fasi in cui ho apportato il mio contributo sono state, in particolare, quelle di definizione e integrazione dei nuovi componenti all’interno del layout motore preesistente, di realizzazione e implementazione delle strategie di controllo in un sistema dedicato in grado di gestire efficacemente i componenti, e di sperimentazione al banco prova. I risultati conseguiti al termine dell’attività sono quindi inerenti allo sviluppo e validazione del sistema di controllo, alla valutazione delle performance del propulsore risultante e alla caratterizzazione e analisi critica del sistema di e-boost dal punto di vista energetico.
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Cicognani, Alessandro. "Studio ed ottimizzazione di un sistema di sovralimentazione per un motore a 2 tempi aeronautico." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8774/.

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Janíček, Michal. "Přeplňovaný zážehový motor mechanickým dmychadlem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400431.

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The diploma thesis deals with the selection of an eligible supercharger for cooperation with the internal combustion SI engine Honda K20A2. The first part is dedicated to the research referring to an issue of charging and a brief description of particular supercharger types. However, the main part of the thesis consists in the formation of proposal calculation and the tentative choice of the eligible type of supercharger. The part of the work is also the description of the assigned engine and the measurement of its parameters. The most extensive part of the thesis deals with the making of computational model of the atmospheric and supercharged version of the engine and the consecutive simulations in the GT-Power software. Finally, gained results are evaluated and the computational study of the cooperation of the selected supercharger with assigned combustion engine is made in the last part of the diploma thesis.
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Celý, Martin. "Zvýšení účinnosti spalovacího motoru pro malé autonomní prostředky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444982.

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The work deals with the analysis of various possibilities of increasing the efficiency of a small internal combustion engine potentially usable for use in the field of autonomous devices of smaller dimensions. It contains an outline of the problems of modern smaller autonomous means and an analysis of available drives designed for them, especially an analysis of propulsion by internal combustion engines. In his next part of the work he provides information about the created mathematical model of the demonstration internal combustion engine in the GT-Power program and an analysis of places where and in what ways its efficiency can be increased. The design of two such components together with the evaluation of the achieved results offers the conclusion of this work.
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伸宜, 奥井, and Nobunori Okui. "新方式ハイブリッドシステム搭載長距離貨物トラックの燃料消費率改善に関する研究." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13097335/?lang=0, 2018. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13097335/?lang=0.

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車両の電動化(ハイブリッド化)と内燃機関システムの電動化を最適に組み合わせた技術と、それらを効果的に稼働させるハイブリッド制御ロジックを適用した新方式大型ハイブリッドトラックを提案した。長距離貨物輸送時の燃料消費率の改善に対し効果があることを明らかとした。同時に、従来大型トラックに対し、荷室搭載性の確保や車両コストの抑制が可能となることが分かり、実用性の面でも優位性があることを示した。
博士(工学)
Doctor of Philosophy in Engineering
同志社大学
Doshisha University
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Anderson, Stephen James. "The scavenging and performance characteristics of a multi-cylinder, supercharged, uniflow-scavenged two-stroke engine." Thesis, Queen's University Belfast, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337049.

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Cronican, James. "Macromolecule Delivery into Mammalian Cells Using Supercharged Proteins." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10142.

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Delivery of macromolecules into mammalian cells in vitro and in vivo has enabled new areas of research and offers the potential for powerful new treatment options. Recent research has generated many delivery platforms but these solutions remain limited by scope, potency and safety. We have reported a superpositively charged green fluorescent protein (+36 GFP) with the ability to deliver nucleic acids into a variety of mammalian cell lines in vitro and to potently deliver protein in vitro and in vivo without toxicity. These results have directed us to identify a subset of naturally occurring human proteins with similar but previously unknown cell-penetrating and protein delivery properties. Preliminary efforts have been made towards establishing the therapeutic potential for supercharged proteins replacement of the cytosolic enzyme, argininosuccinate synthase. Preliminary efforts have also been made towards enhancing endosomal escape with \(His_{39} GFP\).
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Bester, Wallace William. "Application of turbochargers in spark ignition passenger vehicles." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/165.

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Conlon, Paul. "Thermodynamic analysis of supercharged, fuel-injected two-stroke cycle engines." Thesis, Queen's University Belfast, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317435.

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Books on the topic "Supercharger"

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Supercharged! Dallas, Tex: Taylor Pub. Co., 1991.

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ill, Downing Julie, ed. Supercharged infield. Boston: Little, Brown, 1985.

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Supercharged living. Lake Mary, Fla: Creation House, 1999.

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Supercharged bitmapped graphics. Blue Ridge Summit, PA: Windcrest/McGraw-Hill, 1992.

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Kirk, Cheryl. Supercharged web browsers. Rockland, Mass: Charles River Media, 1998.

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Supercharged JavaScript graphics. Sebastopol, CA: O'Reilly Media, Inc., 2011.

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D, Ford Norman. Supercharge your immunity. New Canaan, Conn: Keats Pub., 1998.

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Curless, Todd. Turbochargers: Theory, installation, maintenance, and repair. Blue Ridge Summit, Pa: Tab Books, 1985.

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Vasilʹev, A. V. Akusticheskiĭ nadduv dvigateleĭ vnutrennego sgoranii︠a︡: Uchebnoe posobie. Tolʹi︠a︡tti: Tolʹi︠a︡ttinskiĭ gos. universitet, 2004.

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Lee Adams' supercharged C++ graphics. Blue Ridge Summit, PA: Windcrest, 1992.

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Book chapters on the topic "Supercharger"

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Rastelli, Roberto, John Shutty, and Brandon Biller. "A design methodology for combined turbo and supercharger applications." In Proceedings, 697–716. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-08844-6_47.

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An, Byeongil, Hiroshi Suzuki, Motoki Ebisu, and Hedeyuki Tanaka. "Development of Two-Stage Turbocharger System with Electric Supercharger." In Lecture Notes in Electrical Engineering, 147–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33841-0_11.

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Marchenko, Andrii, Andrey Grabovskiy, Mykola Tkachuk, Oleksandr Shut, and Mykola Tkachuk. "Detuning of a Supercharger Rotor from Critical Rotational Velocities." In Lecture Notes in Mechanical Engineering, 137–45. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77823-1_14.

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Rogovyi, Andrii, Sergey Khovanskyy, Irina Grechka, and Jan Pitel. "The Wall Erosion in a Vortex Chamber Supercharger Due to Pumping Abrasive Mediums." In Lecture Notes in Mechanical Engineering, 682–91. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22365-6_68.

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Binnie, Chris. "Supercharged systemd." In Practical Linux Topics, 21–32. Berkeley, CA: Apress, 2016. http://dx.doi.org/10.1007/978-1-4842-1772-6_3.

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Howie, John, Steven Duplij, Ali Mostafazadeh, and Masaki Yasue. "Induced Supercharge, with Flavors." In Concise Encyclopedia of Supersymmetry, 200. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/1-4020-4522-0_263.

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Ibrahim, Amir, Pierre Sfeir, and Roman Skoracki. "Supercharged Jejunum for Esophageal Reconstruction." In Operative Dictations in Plastic and Reconstructive Surgery, 381–84. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40631-2_91.

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Hyakusoku, Hiko, and Rei Ogawa. "Perforator Supercharged Super-Thin Flap." In Color Atlas of Burn Reconstructive Surgery, 452–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-05070-1_50.

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Vinh, Vu Quang. "Perforator Supercharged Super-Thin Flap." In Color Atlas of Burn Reconstructive Surgery, 462–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-05070-1_51.

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Pukhliy, V. A., E. A. Kogan, and S. T. Miroshnichenko. "Hydrodynamics and Strength of Tornado Superchargers." In Lecture Notes in Mechanical Engineering, 47–59. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54814-8_6.

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Conference papers on the topic "Supercharger"

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Spring, Peter, Lino Guzzella, and Christopher H. Onder. "Optimal Control Strategy for a Pressure-Wave Supercharged SI Engine." In ASME 2003 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ices2003-0645.

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On the basis of a control-oriented mean-value model of a spark-ignition engine supercharged with a pressure-wave supercharger, this paper introduces an operation strategy which minimizes the torque response time to driver commands. Since in pressure-wave superchargers fresh air and exhaust gas are in direct contact in the cell wheel, unwanted and excessive exhaust gas recirculation over the pressure-wave supercharger has to be limited by appropriate control actions. The most critical situation arises when large amounts of exhaust gas are recirculated during a hard acceleration, which causes the engine torque to drop sharply and thus to severely affect driveability. In order to prevent such situations, a set of actuators (throttles, valves, etc.) has to be controlled in a coordinated way. Conventional strategies cause the actuators to be closed at a fairly slow, steady rate. Our investigations show that driveability can be improved with a somewhat more complex strategy.
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Mahendra, Pranay, and Michael G. Olsen. "Unsteady Velocity Field Measurements of Outlet Flow in an Automotive Supercharger." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14893.

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Recently the automotive industry has been using superchargers to boost the power generated by the engine, but the noise generated by these superchargers is of great concern. The noise generated during the working of the supercharger is primarily a fluid mechanics phenomenon. Particle Image Velocimetry (PIV) was used to study air flow characteristics of a positive displacement supercharger with an emphasis on gaining insights into strategies for noise reduction. PIV was used to measure the instantaneous and ensemble-averaged velocity fields of the flow at the outlet of the supercharger as a function of blade position, allowing for visualization of the flow as it leave the blades. The preliminary results show that the flow exits the supercharger as a high speed jet at the end closer to the pulley end, and the flow varies with the change in blade position.
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3

von Rueden, K., H. Pucher, and J. Nickel. "Supercharging of SI Engines Using a New Kind of Screw-Type Supercharger." In ASME 2001 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-ice-442.

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Abstract In result of the permanent endeavor to reduce fuel consumption of vehicle engines, nowadays the implementation of downsizing concepts is being enforced. Thereby the desired nominal engine power can be produced by an engine with lower displacement operating with correspondingly higher charging pressure. Mechanical supercharging as well as turbocharging can be considered as a suitable supercharging method. This paper reports on experimental and simulation results regarding the stationary and transient operation of a four-stroke cycle SI passenger car engine supercharged by a new type of screw-type supercharger. In this manner the load control of the SI engine is performed by a supercharger internal slide valve system. Thus not only the throttling losses will be reduced noticeably, but also expansion work can be regained by this supercharger under certain operating conditions. The results obtained will be compared with those of the turbocharged reference engine.
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4

Vetrovec, John. "Fluid-Dynamic Supercharger." In SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-01-0299.

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5

Ma, Tom, and Jon Ma. "Supercharger Air Hybrid Vehicle." In SAE 2010 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2010. http://dx.doi.org/10.4271/2010-01-0822.

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6

Akbari, Pezhman, and Norbert Mu¨ller. "Gas Dynamic Design Analyses of Charging Zone for Reverse-Flow Pressure Wave Superchargers." In ASME 2003 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ices2003-0690.

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The paper is focused on a comprehensive and systematic gas dynamic analysis of the high-pressure phase (charging zone) of pressure wave superchargers. The procedure is documented for a four-port reverse flow (RF) wave rotor, the typical configuration for engine wave superchargers, also named Comprex. A one-dimensional analytical gas dynamic model is employed to calculate flow characteristics inside the channels. Existing normal shock wave equations along with isentropic relations for expansion waves are used for calculations. Useful design parameters such as cycle timing and port widths are determined by formulating traveling times of the waves inside the channels. The gas dynamic study of the internal wave process demonstrates its fundamental dependence on the externally imposed compression ratio of the pressure wave supercharger.
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7

Uthoff, Loren H., and John W. Yakimow. "Development of the Eaton Supercharger." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1987. http://dx.doi.org/10.4271/870355.

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8

Pohorˇelsky´, Ludeˇk, Philippe Obernesser, Jirˇi Va´vra, Vojteˇch Kli´r, and Jan Macek. "1-D Model and Experimental Tests of Pressure Wave Supercharger." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43427.

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In this contribution, a pressure wave supercharger (PWS) is investigated both at diesel engine and at combustion chamber test bench using 1-D simulation and experimental measuring. Moreover, a combustion engine supercharged by PWS has been compared using 1-D simulation to turbocharged one at steady state and transient operations. A pressure wave supercharger is simulated using a detailed model based on the partial differential equations capturing non-linear effects of gas dynamics. The work has been performed using the commercial 1-D code GT-Power. A concept of modeling used enables to integrate the PWS model with all other models which are already created in the commercial codes (like more precise model of combustion, vehicle model, etc.). The PWS takes advantage of the direct pressure and enthalpy exchange between exhaust gases and fresh air in narrow channels to provide boost pressure. Due to the direct contact between exhaust gas and fresh air, a mixing occurs. Nevertheless, this internal recirculation of exhaust gas can be used for lowering of NOx emissions, but at the same time it could deteriorate engine power as the result of a lack of oxygen. The internal mixing has been investigated using 1-D simulation and different possibilities to avoid mixing have been tested. The PWS has showed during the simulation work behavior it could fulfill demand on a modern car propulsion system. Finally, PWS measurements with a combustion chamber have been undertaken and compared to the 1-D simulation results. Using the results of PWS measurement at the test bench and the 1-D simulation the usage of PWS in fuel cell applications is discussed, as well. This work results from the collaboration between Josef Bozˇek Research Center and Renault SA.
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Wade, Robert, Steven Murphy, Paul Cross, and Craig Hansen. "A Variable Displacement Supercharger Performance Evaluation." In WCX™ 17: SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2017. http://dx.doi.org/10.4271/2017-01-0640.

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10

Wiedemann, B., H. Leptien, G. Stolle, and K. D. Emmenthal. "Development of Volkswagen's Supercharger G-lader." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1986. http://dx.doi.org/10.4271/860101.

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Reports on the topic "Supercharger"

1

Jaiklanburana, Kritwit, and Vilas M. Salokhe. Design and Development of a Supercharger for Single Cylinder Diesel Engine. Warrendale, PA: SAE International, October 2005. http://dx.doi.org/10.4271/2005-32-0014.

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2

Starodetko, Konstantin E., Simon Simand, Tcheslav B. Drobychevskj, Vladimir J. Belyaev, Konstantin N. Yurchuk, Aliaksandr A. Vitsiaz, and Dmitriy V. Kuzmenkov. High Performance Characteristics of a Motorcycle Powered by a Four-Stroke Small 50cc-125cc Engine at the Expense of a Positive Displacement Air Compressor as a Supercharger. Warrendale, PA: SAE International, October 2013. http://dx.doi.org/10.4271/2013-32-9015.

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3

Lee, Kenneth, Edward Miguel, and Catherine Wolfram. Does Household Electrification Supercharge Economic Development? Cambridge, MA: National Bureau of Economic Research, December 2019. http://dx.doi.org/10.3386/w26528.

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4

Fukuhara, Yoshiki, Naoya Kimata, and Takashi Suzuki. Improving the Fuel Economy of Supercharged Engine. Warrendale, PA: SAE International, October 2013. http://dx.doi.org/10.4271/2013-32-9118.

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Sako, Takahiro, Satoshi S. Morimoto, Hiroumi Fujimoto, Ryoji Okada, and Norimasa Iida. A Study on Supercharged HCCI Natural Gas Engines. Warrendale, PA: SAE International, October 2005. http://dx.doi.org/10.4271/2005-32-0021.

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6

Charles M Ankenbrandt et al. A Linac afterburner to supercharge the Fermilab booster. Office of Scientific and Technical Information (OSTI), October 2002. http://dx.doi.org/10.2172/803267.

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Gotoh, Shunsuke, Tatsuya Kuboyama, Yasuo Moriyoshi, Koichi Hatamura, Toshio Yamada, Junichi Takanashi, and Yasuhiro Urata. Evaluation of the Performance of a Boosted HCCI Gasoline Engine with Blowdown Supercharge System. Warrendale, PA: SAE International, October 2013. http://dx.doi.org/10.4271/2013-32-9172.

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8

Abe, Yasuhide, Yuma Ishizawa, Go Emori, Mitsuo Asanuma, Akira Iijima, Hideo Shoji, Kazuhito Misawa, et al. A Study of Supercharged HCCI Combustion using In-cylinder Spectroscopic Techniques and Chemical Kinetic Calculation. Warrendale, PA: SAE International, October 2013. http://dx.doi.org/10.4271/2013-32-9171.

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9

Hatamura, Koichi. A Study on HCCI (Homogeneous Charge Compression Ignition) Gasoline Engine Supercharged by Exhaust Blow Down Pressure. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0219.

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