Relevant bibliographies by topics / Variable geometry turbocharger

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Variable geometry turbocharger'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Variable geometry turbocharger"

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Wang, Zhihui, Chaochen Ma, Zhi Huang, Liyong Huang, Xiang Liu, and Zhihong Wang. "A novel variable geometry turbine achieved by elastically restrained nozzle guide vanes." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 9 (April 8, 2020): 2312–29. http://dx.doi.org/10.1177/0954407020909662.

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Variable geometry turbocharging is one of the most significant matching methods between turbocharger and engine, and has been proven to provide air boost for entire engine speed range as well as to reduce turbo-lag. An elastically constrained device designed for a novel variable geometry turbocharger was presented in this paper. The design of the device is based on the nozzle vane’s self-adaptation under interactions of the elastic force by elastically restrained guide vane and the aerodynamic force from flowing gas. The vane rotation mechanism of the novel variable geometry turbocharger is different from regular commercial variable geometry turbocharger systems, which is achieved by an active control system (e.g. actuator). To predict the aerodynamic performance of the novel variable geometry turbocharger, the flow field of the turbine was simulated using transient computational fluid dynamics software combined with a fluid–structure interaction method. The results show that the function of elastically constrained device has similar effectiveness as the traditional variable geometry turbocharger. In addition, the efficiency of the novel variable geometry turbocharger is improved at most operating conditions. Furthermore, a turbocharged diesel engine was created using the AVL BOOST software to evaluate the benefits of the new variable geometry turbocharger. The proposed novel variable geometry turbocharger can effectively improve the engine performance at mid-high speeds, such that the maximum decrease of brake-specific fuel consumption reaches 17.91% under 100% load and 3600 r/min engine condition. However, the engine power and brake-specific fuel consumption decrease significantly at low engine speed conditions, and the decrease is more than 26% under 1000 r/min.
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Tang, Huayin, Colin Copeland, Sam Akehurst, Chris Brace, Peter Davies, Ludek Pohorelsky, Les Smith, and Geoff Capon. "A novel predictive semi-physical feed-forward turbocharging system transient control strategy based on mean-value turbocharger model." International Journal of Engine Research 18, no. 8 (October 7, 2016): 765–75. http://dx.doi.org/10.1177/1468087416670052.

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Variable geometry turbine is a technology that has been proven on diesel engines. However, despite the potential to further improve gasoline engines’ fuel economy and transient response using variable geometry turbine, controlling the variable geometry turbine during transients is challenging due to its highly non-linear behaviours especially on gasoline applications. After comparing three potential turbocharger transient control strategies, the one that predicts the turbine performances for a range of possible variable geometry turbine settings in advance was developed and validated using a high-fidelity engine model. The proposed control strategy is able to capture the complex transient behaviours and achieve the optimum variable geometry turbine trajectories. This improved the turbocharger response time by more than 14% compared with a conventional proportional–integral–derivative controller, which cannot achieve target turbocharge speed in all cases. Furthermore, the calibration effort required can be significantly reduced, offering significant benefits for powertrain developers. It is expected that the structure of this transient control strategy can also be applied to complex air-path systems.
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Zeng, Tao, and Guoming G. Zhu. "Control-oriented turbine power model for a variable-geometry turbocharger." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 4 (May 14, 2017): 466–81. http://dx.doi.org/10.1177/0954407017702996.

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A control-oriented model for the variable-geometry turbocharger is critical for model-based variable-geometry turbocharger control design. Typically, the variable-geometry turbocharger turbine power is modeled with a fixed mechanical efficiency of the turbocharger on the assumption of an isentropic process. The fixed-efficiency approach is an oversimplification and may lead to modeling errors because of an overpredicted or underpredicted compressor power. This leads to the use of lookup-table-based approaches for defining the mechanical efficiency of the turbocharger. Unfortunately, since the vane position of a variable-geometry turbocharger introduces a third dimension into these maps, real-time implementation requires three-dimensional interpolations with increased complexity. Map-based approaches offer greater fidelity in comparison with the fixed-efficiency approach but may introduce additional errors due to interpolation between the maps and extrapolation to extend the operational range outside the map. Interpolation errors can be managed by using dense maps with extensive flow bench testing; smooth extrapolation is necessary when the turbine is operated outside the mapped region, e.g. in low-flow and low-speed conditions. Extending the map to this region requires very precise flow control and measurement using a motor-driven compressor, which currently is not a standard test procedure. In this paper, a physics-based control-oriented model of the turbine power and the associated power loss is proposed and developed, where the turbine efficiency is modeled as a function of both the vane position of the variable-geometry turbocharger and the speed of the turbine shaft. As a result, the proposed model eliminates the interpolation errors with smooth extension to operational conditions outside typically mapped regions.
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Lei, Jie, Yan Song Wang, and Hong Juan Ren. "CFD Simulation of Volute of Variable Geometry Turbocharger." Advanced Materials Research 532-533 (June 2012): 287–91. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.287.

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To study the Volute of Variable Geometry Turbocharger (VGT) flow field and the possibility of providing the basis theory for control strategy and matching with engine, in this paper, a method is presented. The 3D viscous compressible flow in the model of volute and the vanes is simulated by CFD using FVM (Finite Volume Method). And taking some VGT as an example, the simulation is carried out. The result shows that the method can display the distribution of pressure and velocity in the model clearly. The zone and the reasons resulting in loss will be found after analyzing the results, and then the turbocharger can be optimized and redesigned purposeful to reduce the losses resulted from improper figure. The distribution of pressure and velocity at open and close vanes will be found after analyzing the results, and the basis theory for VGT control strategy and matching with engine can be provided.
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Cheng, Li, Pavlos Dimitriou, William Wang, Jun Peng, and Abdel Aitouche. "A novel fuzzy logic variable geometry turbocharger and exhaust gas recirculation control scheme for optimizing the performance and emissions of a diesel engine." International Journal of Engine Research 21, no. 8 (October 31, 2018): 1298–313. http://dx.doi.org/10.1177/1468087418809261.

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Variable geometry turbocharger and exhaust gas recirculation valves are widely installed on diesel engines to allow optimized control of intake air mass flow and exhaust gas recirculation ratio. The positions of variable geometry turbocharger vanes and exhaust gas recirculation valve are predominantly regulated by dual-loop proportional–integral–derivative controllers to achieve predefined set-points of intake air pressure and exhaust gas recirculation mass flow. The set-points are determined by extensive mapping of the intake air pressure and exhaust gas recirculation mass flow against various engine speeds and loads concerning engine performance and emissions. However, due to the inherent nonlinearities of diesel engines and the strong interferences between variable geometry turbocharger and exhaust gas recirculation, an extensive map of gains for the P, I, and D terms of the proportional–integral–derivative controllers is required to achieve desired control performance. The present simulation study proposes a novel fuzzy logic control scheme to determine appropriate positions of variable geometry turbocharger vanes and exhaust gas recirculation valve in real-time. Once determined, the actual positions of the vanes and valve are regulated by two local proportional–integral–derivative controllers. The fuzzy logic control rules are derived based on an understanding of the interactions among the variable geometry turbocharger, exhaust gas recirculation, and diesel engine. The results obtained from an experimentally validated one-dimensional transient diesel engine model showed that the proposed fuzzy logic control scheme is capable of efficiently optimizing variable geometry turbocharger and exhaust gas recirculation positions under transient engine operating conditions in real-time. Compared to the baseline proportional–integral–derivative controllers approach, both engine’s efficiency and total turbo efficiency have been improved by the proposed fuzzy logic control scheme while NOx and soot emissions have been significantly reduced by 34% and 82%, respectively.
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Wang, Zhihui, Chaochen Ma, Hang Zhang, and Fei Zhu. "A novel pulse-adaption flow control method for a turbocharger turbine: Elastically restrained guide vane." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 13 (March 2, 2020): 2581–94. http://dx.doi.org/10.1177/0954406220908623.

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A turbocharger is a key enabler for energy conservation in an internal combustion engine. The turbine in a turbocharger is fed by highly pulsating gas flow due to the reciprocating engine, resulting in significant deterioration of the turbocharger performance. To solve this problem, a novel pulse-optimized regulation mechanism named ‘elastically restrained guide vane’ for a novel variable geometry turbocharger is proposed in this paper. The new mechanism regulates the instantaneous flow angle at turbine inlet due to guide vane's self-adaptive rotation under interactions of the elastic force by elastically restrained guide vane and the aerodynamic force from flowing gas, which is different from the traditional variable geometry turbocharger that is achieved by an active control system (e.g. actuator). To investigate the effectiveness of the novel method, a double-passage computational fluid dynamics model is built in ANSYS CFX software combined with a fluid-structure interaction method. The results demonstrate that the pulse-adaptive regulation method can effectively adjust the nozzle opening according to the different pulsating pressures at turbine inlet. Subsequently, based on the calibrated models, the numerical simulation concentrates on the potential gain in turbine eventual power output and the exhaust energy recover as well as the corresponding effects on efficiency as a result of operating the turbocharger in its elastically restrained guide vane mode compared to its operation as a conventional variable geometry turbocharger.
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Gabriel, Holger, Stefan Jacob, Uwe Münkel, Helmut Rodenhäuser, and Hans-Peter Schmalzl. "The turbocharger with variable turbine geometry for gasoline engines." MTZ worldwide 68, no. 2 (February 2007): 7–10. http://dx.doi.org/10.1007/bf03226804.

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Dambrosio, L., G. Pascazio, and B. Fortunato. "Fuzzy logic controller applied to a variable geometry turbine turbocharger." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 219, no. 11 (November 1, 2005): 1347–60. http://dx.doi.org/10.1243/095440705x35008.

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This paper provides an adaptive technique for the control of a variable geometry turbine (VGT) in a turbocharged compression ignition engine. The adaptive control is based on a fuzzy logic control scheme and a least-squares parameter estimator algorithm. In order to test the performance of the proposed control technique, a numerical model of the engine has been used, which employs a thermodynamic (zero-dimensional) approach. The paper will show that the fuzzy logic control technique is able to take into account the non-linearity of the controlled system and to reject white noise affecting the measurement chain.
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Bahiuddin, Irfan, Saiful Amri Mazlan, Fitrian Imaduddin, and Ubaidillah. "A new control-oriented transient model of variable geometry turbocharger." Energy 125 (April 2017): 297–312. http://dx.doi.org/10.1016/j.energy.2017.02.123.

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Pesiridis, Apostolos, and Ricardo F. Martinez-Botas. "Experimental Evaluation of Active Flow Control Mixed-Flow Turbine for Automotive Turbocharger Application." Journal of Turbomachinery 129, no. 1 (February 1, 2005): 44–52. http://dx.doi.org/10.1115/1.2372778.

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In the current paper we introduce an innovative new concept in turbochargers—that of using active control at the turbine inlet with the aim of harnessing the highly dynamic exhaust gas pulse energy emanating at high frequency from an internal combustion engine, in order to increase the engine power output and reduce its exhaust emissions. Driven by the need to comply to increasingly strict emissions regulations as well as continually striving for better overall performance, the active control turbocharger is intended to provide a significant improvement over the current state of the art in turbocharging: the Variable Geometry Turbocharger (VGT). The technology consists of a system and method of operation, which regulate the inlet area to a turbocharger inlet, according to each period of engine exhaust gas pulse pressure fluctuation, thereby actively adapting to the characteristics of the high frequency, highly dynamic flow, thus taking advantage of the highly dynamic energy levels existent through each pulse, which the current systems do not take advantage of. In the Active (Flow) Control Turbocharger (ACT) the nozzle is able to adjust the inlet area at the throat of the turbine inlet casing through optimum amplitudes, at variable out-of-phase conditions and at the same frequency as that of the incoming exhaust stream pulses. Thus, the ACT makes better use of the exhaust gas energy of the engine than a conventional VGT. The technology addresses, therefore, for the first time the fundamental problem of the poor generic engine-turbocharger match, since all current state of the art systems in turbocharging are still passive receivers of this highly dynamic flow without being able to provide optimum turbine inlet geometry through each exhaust gas pulse period. The numerical simulation and experimental work presented in this paper concentrates on the potential gain in turbine expansion ratio and eventual power output as well as the corresponding effects on efficiency as a result of operating the turbocharger in its active control mode compared to its operation as a standard VGT.
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Dissertations / Theses on the topic "Variable geometry turbocharger"

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Sutton, Anthony James. "Experimental evaluation of compressor variable geometry in a turbocharger compressor." Thesis, University of Bath, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289813.

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Wöhr, Michael, Elias Chebli, Markus Müller, Hans Zellbeck, Johannes Leweux, and Andreas Gorbach. "Development of a turbocharger compressor with variable geometry for heavy-duty engines." Sage, 2015. https://tud.qucosa.de/id/qucosa%3A35552.

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This article describes the first development phase of a centrifugal compressor with variable geometry which is designed to match the needs of future heavy-duty engines. Requirements of truck engines are analyzed, and their impact on the properties of the compressor map is evaluated in order to identify the most suitable kind of variable geometry. Our approach utilizes the transformation of engine data into pressure ratio and mass flow coordinates that can be displayed and interpreted using compressor maps. One-dimensional and three-dimensional computational fluid dynamics fluid flow calculations are used to identify loss mechanisms and constraints of fixed geometry compressors. Linking engine goals and aerodynamic objectives yields specific recommendations on the implementation of the variable geometry compressor.
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Wöhr, Michael, Elias Chebli, Markus Müller, Hans Zellbeck, Johannes Leweux, and Andreas Gorbach. "Development of a turbocharger compressor with variable geometry for heavy-duty engines." Sage, 2014. https://publish.fid-move.qucosa.de/id/qucosa%3A38444.

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This article describes the first development phase of a centrifugal compressor with variable geometry which is designed to match the needs of future heavy-duty engines. Requirements of truck engines are analyzed, and their impact on the properties of the compressor map is evaluated in order to identify the most suitable kind of variable geometry. Our approach utilizes the transformation of engine data into pressure ratio and mass flow coordinates that can be displayed and interpreted using compressor maps. One-dimensional and three-dimensional computational fluid dynamics fluid flow calculations are used to identify loss mechanisms and constraints of fixed geometry compressors. Linking engine goals and aerodynamic objectives yields specific recommendations on the implementation of the variable geometry compressor.
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Rajoo, Srithar. "Steady and pulsating performance of a variable geometry mixed flow turbocharger turbine." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/39159.

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Variable Geometry Turbochargers (VGT) are widely used to improve engine-turbocharger matching and currently common in diesel engines. VGT has proven to provide air boost for wide engine speed range as well as reduce turbo-lag. This thesis presents the design and experimental evaluation of a variable geometry mixed flow turbocharger turbine. The mixed flow rotor used in this study consists of 12 blades with a constant inlet blade angle of +20°, a cone angle of 50° and a tip diameter of 95.2mm. A variable geometry stator has been designed within this work, consists of 15 vanes fitted into a ring mechanism with a pivoting range between 40° and 80°. A novel nozzle vane was designed to have 40° lean stacking (from the axial direction). This geometrically achieves 3-dimensional match with the mixed flow rotor and aims to improve the turbine stage performance. A conventional straight nozzle vane was also constructed in order to have a comparative design to assess the benefits of the new lean vane. The steady flow performance results are presented for vane angle settings of 40°, 50°, 60°, 65° and 70° over a non-dimensional speed range of 0.833-1.667. The tests have been carried out with a permanent magnet eddy current dynamometer within a velocity ratio range of 0.47 to 1.09. The optimum efficiency of the variable geometry turbine was found to be approximately 5 percentage points higher than the baseline nozzleless unit. The peak efficiency of the variable geometry turbine corresponds to vane angle settings between 60° and 65°, for both the lean and straight vanes. The maximum total-to-static efficiency of the turbine with lean vanes configuration was measured to be 79.8% at a velocity ratio of 0.675. The equivalent value with straight vanes configuration is 80.4% at a velocity ratio of 0.673. The swallowing capacity of the turbine was shown to increase with the lean vanes, as much as 17% at 70° vane angle and pressure ratio of 1.7. The turbine pulsating flow performance is presented for 50% and 80% equivalent speed conditions and a pulse frequency range of 20-80 Hz, these frequencies correspond to an engine speed range of 800-3200 RPM respectively. The turbine was observed to go through a period of choking within a pulse for vane angle settings between 60°-70°. The unsteady efficiency of a nozzled turbine was found to exhibit larger deviation from the quasi-steady curve compared to a nozzlesless turbine, by as much as -19.4 percentage points. This behaviour was found to be more pronounced towards the close nozzle settings, where the blockage effect is dominant. The nozzle ring was also shown to act as a 'restrictor' which shields the turbine rotor from being completely exposed to the unsteadiness of the flow. This coupled with the phase shifting ambiguity was shown to result in the inaccuracy of the point-by-point instantaneous efficiency; where as much as 25% of a cycle exhibits instantaneous efficiency above unity. Finally the turbine was tested by adapting to the pulsating flow (20-60 Hz) by cyclic variation in the opening and closing of the nozzle vanes, called Active Control Turbocharger (A.C.T.). The nozzle vane operating schedules for each pulse period were evaluated experimentally in two general modes; natural oscillating opening/closing of the nozzle vanes due to the pulsating flow and the forced sinusoidal oscillation of the vanes to match the incoming pulsating flow. The spring stiffness was found to be a dominant factor in the effectiveness of the natural oscillation mode. In the best setting, the turbine energy extraction was shown to improve by 6.1% over a cycle for the 20 Hz flow condition. In overall it was demonstrated an optimum A.C.T. operating condition could be achieved by allowing the nozzle ring to oscillate naturally in pulsating flow, against an external spring pre-load, which eliminates the use of complex mechanism and external drive. However, the current result suggest the benefits of A.C.T. are best realised in large low speed engines.
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Mehmood, Adeel. "Modeling, simulation and robust control of an electro-pneumatic actuator for a variable geometry turbocharger." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2012. http://tel.archives-ouvertes.fr/tel-00827445.

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The choice of technology for automotive actuators is driven by the need of high power to size ratio. In general, electro-pneumatic actuators are preferred for application around the engine as they are compact, powerful and require simple controlling devices. Specially, Variable Geometry Turbochargers (VGTs) are almost always controlled with electro-pneumatic actuators. This is a challenging application because the VGT is an important part of the engine air path and the latter is responsible for intake and exhaust air quality and exhaust emissions control. With government regulations on vehicle pollutant emissions getting stringent by the year, VGT control requirements have also increased. These regulations and requirements can only be fulfilled with precise dynamic control of the VGT through its actuator. The demands on actuator control include robustness against uncertainty in operating conditions, fast and smooth positioning without vibration, limited number of measurements. Added constraints such as nonlinear dynamic behavior of the actuator, friction and varying aerodynamic forces in the VGT render classical control methods ineffective. These are the main problems that form the core of this thesis.In this work, we have addressed the above mentioned problems, using model based control complemented with robust control methods to overcome operational uncertainties and parametric variations. In the first step, a detailed physical model of an electro-pneumatic actuator has been developed; taking into account the nonlinear characteristics originating from air compressibility and friction. Means to compensate for aerodynamic force have been studied and implemented in the next step. These include model parametric adaptation and one dimensional CFD (Computational Fluid Dynamics) modeling. The complete model has been experimentally validated and a sensitivity analysis has been conducted to identify the parameters which have the greatest impact upon the actuator's behavior. The detailed simulation model has then been simplified to make it suitable for control purposes while keeping its essential behavioral characteristics (i.e. transients and dynamics). Next, robust controllers have been developed around the model for the control objective of accurate actuator positioning in presence of operational uncertainty. An important constraint in commercial actuators is that they provide output feedback only, as they are only equipped with low-cost position sensors. This hurdle has been overcome by introducing observers in the control loop, which estimate other system states from the output feedback. The estimation and control algorithms have been validated in simulation and experimentally on diesel engine test benches.
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Gustafsson, Jonatan. "Linearization Based Model Predictive Control of a Diesel Engine with Exhaust Gas Recirculation and Variable-Geometry Turbocharger." Thesis, Linköpings universitet, Fordonssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174829.

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Engine control systems aim to ensure satisfactory output performance whilst adhering to requirements on emissions, drivability and fuel efficiency. Model predictive control (MPC) has shown promising results when applied to multivariable and nonlinear systems with operational constraints, such as diesel engines. This report studies the torque generation from a mean-value heavy duty diesel engine with exhaust gas recirculation and variable-geometry turbocharger using state feedback linearization based MPC (LMPC). This is accomplished by first introducing a fuel optimal reference generator that converts demands on torque and engine speed to references on states and control signals for the MPC controller to follow. Three different MPC controllers are considered: a single linearization point LMPC controller and two different successive LMPC (SLMPC) controllers, where the controllers are implemented using the optimization tool CasADi. The MPC controllers are evaluated with the World Harmonized Transient Cycle and the results show promising torque tracking using a SLMPC controller with linearization about reference values.
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O'Neill, J. W. "An experimental and numerical investigation of the flow field in the turbine stator of a variable geometry turbocharger." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403436.

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Acheson, S. K. "An experimental investigation of the flow field in the turbine stator of a variable geometry turbocharger using laser Doppler velocimetry." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403440.

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Vertaľ, Peter. "Provoz a údržba vozidel s přeplňovanými motory turbodmychadly." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-232496.

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The goal is to measure the temperature of the turbocharger after engine shutdown.Measurements wants to show the need to keep a car engine to cool after a heavier burden on the idle speed. It would also prevent possible disruptions turbocharger. The paper also deals with the problems, construction and basic principles of operation of the turbocharger
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Novotný, Pavel. "Zážehový motor s Millerovým cyklem optimalizace provozu turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-449786.

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The diploma thesis deals with the calculation of thermodynamic parameters of a turbocharged petrol engine with Miller cycle. A drive unit from Volkswagen, the EA211EVO model line, was chosen as the engine. The engine has a displacement of 1498 cm3 and engine power reaches 110kW at 5000 to 6000 RPM. In this work, a basic description of the thermodynamics of cycles of spark ignition engines is performed, then the problem of turbocharging and methods of its control are presented. The following are the created engine models in GTSuite environment in variants with WasteGate and Variable Turbine Geometry. Finally, operation optimizations with various valve timing changes are presented. The individual variants are the compared.
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Book chapters on the topic "Variable geometry turbocharger"

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Payri, F., J. Galindo, and J. R. Serrano. "Variable Geometry Turbine Modelling and Control for Turbocharged Diesel Engine Transient Operation." In Thermo- and Fluid-dynamic Processes in Diesel Engines, 189–209. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04925-9_11.

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Tang, H., S. Akehurst, C. J. Brace, S. Garrett, and L. Smith. "Optimisation of transient response of a gasoline engine with variable geometry turbine turbocharger." In 11th International Conference on Turbochargers and Turbocharging, 163–75. Elsevier, 2014. http://dx.doi.org/10.1533/978081000342.163.

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Rajoo, Srithar, and Ricardo Martinez-Botas. "EXPERIMENTAL STUDY ON THE PERFORMANCE OF A VARIABLE GEOMETRY MIXED FLOW TURBINE FOR AUTOMOTIVE TURBOCHARGER." In 8th International Conference on Turbochargers and Turbocharging, 183–92. Elsevier, 2006. http://dx.doi.org/10.1016/b978-1-84569-174-5.50017-8.

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Grigoriadis, P., S. Müller, A. Benz, and M. Sens. "Variable trim compressor – a new approach to variable compressor geometry." In 10th International Conference on Turbochargers and Turbocharging, 111–20. Elsevier, 2012. http://dx.doi.org/10.1533/9780857096135.3a.111.

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Uchida, Hiroshi, Akinobu Kashimoto, and Yuzi Iwakiri. "Transient Performance Prediction of the Turbocharging system with the Variable Geometry Turbochargers." In 8th International Conference on Turbochargers and Turbocharging, 341–50. Elsevier, 2006. http://dx.doi.org/10.1016/b978-1-84569-174-5.50029-4.

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Luján, J. M., J. R. Serrano, C. Cervelló, F. J. Arnau, and S. Soltani. "A one-dimensional model for variable and fixed geometry radial turbines for turbochargers." In 8th International Conference on Turbochargers and Turbocharging, 97–117. Elsevier, 2006. http://dx.doi.org/10.1016/b978-1-84569-174-5.50011-7.

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Chen, Hua. "Turbine wheel design for Garrett advanced variable geometry turbines for commercial vehicle applications." In 8th International Conference on Turbochargers and Turbocharging, 317–27. Elsevier, 2006. http://dx.doi.org/10.1016/b978-1-84569-174-5.50027-0.

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Conference papers on the topic "Variable geometry turbocharger"

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Ikeya, Nobuyuki, Tetsuya Tomita, Daiji Ishihara, Hideaki Matsuoka, and Fusayoshi Nakamura. "Variable Geometry Turbocharger with Electronic Control." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/890645.

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Furukawa, Hiromu, Hiroshi Yamaguchi, Kinshi Takagi, and Akihiro Okita. "Reliability on Variable Geometry Turbine Turbocharger." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1993. http://dx.doi.org/10.4271/930194.

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Hirabayashi, Yuji, Yasuo Sumi, and Fumio Nishiguchi. "Development of Nissan Variable Geometry JET Turbocharger." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1986. http://dx.doi.org/10.4271/860105.

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Jain, Dilip. "Electronic Control of a Variable Geometry Turbocharger." In Earthmoving Industry Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1990. http://dx.doi.org/10.4271/900889.

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Alpert, Alan M. "The Application of Variable Turbine Geometry Turbocharging to Precision Generator Sets." In ASME 1985 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-gt-182.

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The precision generator set is a device required to be capable of step changes in electrical output from no-load to full-load almost instantaneously with essentially no change in frequency. As a result of the time required for a conventional turbocharger to respond to a load change, the precision generator set application has been the exclusive realm of relatively large naturally-aspirated engines, despite the potential weight and fuel consumption advantages of smaller, turbocharged units. The advent of variable turbine geometry for small, inexpensive turbochargers may provide the means by which turbocharged engines may enter into this specialized service. This paper describes the application of variable geometry turbocharging to the precision generator set from the feasibility study to the proof-of-concept as verified in the standard test series for such a generator set.
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Arnold, Steve, Mark Groskreutz, S. M. Shahed, and Kevin Slupski. "Advanced Variable Geometry Turbocharger for Diesel Engine Applications." In SAE 2002 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2002. http://dx.doi.org/10.4271/2002-01-0161.

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Franklin, P. C. "Performance Development of the Holset Variable Geometry Turbocharger." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/890646.

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Lundstrom, Richard R., and Joseph M. Gall. "A Comparison of Transient Vehicle Performance Using a Fixed Geometry, Wastegated Turbocharger and a Variable Geometry Turbocharger." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1986. http://dx.doi.org/10.4271/860104.

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9

Kawamoto, Akiko, Yukio Takahashi, Takaaki Koiken, and Fusayoshi Nakamura. "Variable Geometry System Turbocharger for Passenger Car Diesel Engine." In SAE 2001 World Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2001. http://dx.doi.org/10.4271/2001-01-0273.

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Hashimoto, Teruo, Kenji Okada, and Tadao Oikawa. "ISUZU New 9.8L Diesel Engine with Variable Geometry Turbocharger." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1986. http://dx.doi.org/10.4271/860460.

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