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Journal articles on the topic 'Rotary engine'

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Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Chaudhari, Vinayak. "Rotary Engine." International Journal for Research in Applied Science and Engineering Technology 8, no. 7 (July 31, 2020): 456–59. http://dx.doi.org/10.22214/ijraset.2020.7075.

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2

Тимошевський, Борис Георгійович, Олександр Сергійович Митрофанов, Андрій Станіславович Познанський, and Аркадій Юрійович Проскурін. "АНАЛІЗ КОНСТРУКЦІЇ ТА ТЕХНОЛОГІЇ ВИГОТОВЛЕННЯ ПЕРСПЕКТИВНИХ РОТОРНО-ПОРШНЕВИХ ДВИГУНІВ." Aerospace technic and technology, no. 4 (August 28, 2020): 28–37. http://dx.doi.org/10.32620/aktt.2020.4.04.

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The article discusses the main directions of development of creating new modern and improving existing rotary piston engines. The need for a systematic analysis of existing similar engine designs is established to separate and systematize their advantages and disadvantages at the design stage. As an analysis of the design and manufacturing technology of the existing most promising rotary piston engines, turbocompressor-type circuits with a movable cylinder block is considered, the engines in which the combustion takes place outside the working cylinder, the drum-piston type with movable combustion chambers, rotary expanders, etc. It is established that the structure of the housing of rotary piston engines with an internal cylindrical surface, in which the rotor with working cylinders is located, allows the creation of economical and compact engines. This structure of the engines allows you to reduce vibration and make them safer to use. A comparison of the mechanisms of motion of existing rotary piston engines. Based on the analysis of existing schemes and the design of modern rotary piston engines, a sample of a new design 12 RPE-4.4/1.75 rotary piston engine is designed. The design and basic parameters of a new model of the 12 RPE-4.4/1.75 rotary piston engine with adjustable spool air distribution are presented. The engine has twelve evenly spaced cylinders, provides a balanced engine, and the ability to start at any position of the rotor. The design of the engine designed provides for a central control cam shaft, the rotation of which allows you to adjust the valve timing and engine operation due to the degree of filling of the cylinder in a fairly wide range. A feature of the design of the engine is also that the control cam allows you to change the direction of rotation of the central rotor. It was found that the design of the crank mechanism of the 12 RPE-4.4/1.75 engine is simple in structure and production technology, as well as more reliable compared to similar existing rotary piston engines.

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3

Ki, Dockjong, and Heeju Choi. "Development of a Separate Type Rotary Engine." Journal of the Korean Society of Propulsion Engineers 21, no. 4 (August 1, 2017): 71–78. http://dx.doi.org/10.6108/kspe.2017.21.4.071.

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4

Espinosa, Luis F., and Petros Lappas. "Mathematical Modelling Comparison of a Reciprocating, a Szorenyi Rotary, and a Wankel Rotary Engine." Nonlinear Engineering 8, no. 1 (January 28, 2019): 389–96. http://dx.doi.org/10.1515/nleng-2017-0082.

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Abstract This paper provides an explanation of the geometry, design, and operational principles for the three engines; having special emphasis in the Szorenyi rotary engine which has a deforming rhombus revolving inside a mathematically defined stator. A basic ideal mathematical simulation of those engines were performed, assuming the Otto cycle for the three engines. Also, it assumes the volumetric efficiency of 100%, a wide-open throttle (WOT), no knock nor any mechanical or thermal losses. This simulation focuses on how the fuel burns during combustion, creating pressure and thus, net work. A comparison in pressure traces and cycle performance is made. The study concludes analysing and comparing the ignition advance; finding the best advance for each engine thus the net work between the three engines during one working cycle. Finally, this paper analyses how the different volume change ratio for the combustion chamber of the Szorenyi, Wankel and the reciprocating engine have an effect in the pressure, net work and thermal efficiency generated inside the chamber during combustion for every working cycle.

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5

Wang, J. H., D. J. Lu, Zhuang De Jiang, and X. N. Chen. "A Novel Micro Sliding Rotary Engine." Key Engineering Materials 339 (May 2007): 183–88. http://dx.doi.org/10.4028/www.scientific.net/kem.339.183.

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In recent years, there is an effort to develop a portable, autonomous micro power generation system to obtain an order of magnitude improvement in energy density over general alkaline or lithium ion batteries. As hydrocarbon fuels have much higher energy to weight ratios than general batteries, researches to realize micro-engines fueled by such hydrocarbon fuels are carried out in some universities or institutes. The first key problem of the researches is how to get a micro-engine structure suitable for MEMS (Micro-Electro Mechanical Systems) fabrication. This micro-engine structure needs characteristics such as planar geometry, self-valving operation and a minimal number of moving parts and so on. In this paper, a micro sliding rotary type combustion engine structure is presented and described. The intrinsic characteristics of the engine housing curve named of “kindred cardioids curve” are described in details. The structural scheme and cycle process of the micro-engine are discussed. Some performance parameters of the micro engine are theoretically calculated with H2-Air mixture and specified geometry parameters. The primitive calculated results indicate that the sliding rotary combustion engine is workable and effective.

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6

Okimoto, Haruo. "The Renesis rotary engine." MTZ worldwide 63, no. 10 (October 2002): 7–9. http://dx.doi.org/10.1007/bf03227573.

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7

Chen, Jin Zhou, Cun Yun Pan, Wen Min Li, Lei Zhang, and Hu Chen. "The Study of Friction Power Loss of Piston Group of a Twin-Rotor Engine." Applied Mechanics and Materials 620 (August 2014): 375–81. http://dx.doi.org/10.4028/www.scientific.net/amm.620.375.

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Compared with the conventional piston engines, the new rotary engine has many significant advantages, such as smaller volume and higher power density. Current studies at home and abroad are mainly focusing on aspects of its structural design, kinematics, dynamics analysis, except mechanical efficiency. In conventional piston engines, frictional loss of the piston group accounted for 65% of the total friction power loss[1]. In order to provide the scientific basis for designing low friction piston of the rotary engine, this paper combine the average two-dimensional Reynolds equation, the asperity contacts equation, viscosity-temperature equation and loads balance equation, proposing a method for calculating the friction power loss, and the applying the method to calculate the friction power loss of piston group of a new rotary engine.

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8

SZWAJA, Stanisław, and Kazimierz RZADKOSZ. "Conception of a hybrid pneumatic-combustion rotary vane engine – challenge and reality." Combustion Engines 175, no. 4 (November 1, 2018): 35–39. http://dx.doi.org/10.19206/ce-2018-405.

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The paper presents a new concept of applying a rotary vane engine working as the hybrid system including both a combustion engine and a pneumatic motor, which were working simultaneously. In the beginning, review on both unconventional piston engine designs and similar like solutions on rotary vane engines were conducted. Next, description of the conceptual engine was presented. The concept was realized in practice. The prototype engine was built and it was preliminary investigated focusing on problems with cold start and misfiring events which occurred. The engine was tested on LPG and gasoline, however, its main target is to feed it with natural gas. This approach is justified as far as the engine finally might work in natural gas reduction stations and would provide electricity of 1kW power for station’s own demands.

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9

Barnes, George. "Rotary Curie‐point heat engine." Physics Teacher 24, no. 4 (April 1986): 204–10. http://dx.doi.org/10.1119/1.2341985.

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10

Fernandez-Pello, A. Carlos, Albert P. Pisano, Kelvin Fu, David C. Walther, Aaron Knobloch, Fabian Martinez, Matt Senesky, et al. "MEMS Rotary Engine Power System." IEEJ Transactions on Sensors and Micromachines 123, no. 9 (2003): 326–30. http://dx.doi.org/10.1541/ieejsmas.123.326.

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11

Librovich, B. V. "Dynamics of Rotary Vane Engine." Journal of Mechanical Design 125, no. 3 (September 1, 2003): 498–508. http://dx.doi.org/10.1115/1.1582500.

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This paper broadly discusses aspects of the novel Rotary Vane Engine (RVE). It also considers, in detail, the geometrical structure of work unit and the entire engine. The rigorous mathematical description of work unit and torque transmission mechanism are presented for a first time in literature. Although the RVE is a simple structure possessing a small number of moving parts, it is this property that provides the RVE with an important advantage when compared to a usual reciprocating engine. The main idea is to use noncircular gears in torque transmission mechanism together with Kauertz-Virmel work unit. It is found that the rotary engine can produce almost constant angular velocity of the flywheel, which would result in an efficient and smooth performance.

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12

Deng, Baoqing, Zhenyu Deng, Yuezhen Gao, Dingkai Liang, and Mengqi Deng. "Single Rotary Valve Engine Design." IOP Conference Series: Earth and Environmental Science 603 (December 1, 2020): 012040. http://dx.doi.org/10.1088/1755-1315/603/1/012040.

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13

Deng, Baoqing, Zhuoya Liu, Zengfa Gao, Shihang Li, and Mengqi Deng. "Double Rotary Valve Engine Design." IOP Conference Series: Earth and Environmental Science 603 (December 1, 2020): 012048. http://dx.doi.org/10.1088/1755-1315/603/1/012048.

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14

Mirzaei, M., S. M. Hashemi, B. Saranjam, and A. Binesh. "Two-Zone Simulation of an Axial Vane Rotary Engine Cycle." International Journal of Applied Mechanics and Engineering 26, no. 2 (June 1, 2021): 143–59. http://dx.doi.org/10.2478/ijame-2021-0024.

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Abstract An axial vane rotary engine (AVRE) is a novel type of rotary engines. The engine is a positive displacement mechanism that permits the four “stroke” action to occur in one revolution of the shaft with a minimum number of moving components in comparison to reciprocating engines. In this paper, a two-zone combustion model is developed for a spark ignition AVRE. The combustion chamber is divided into burned and unburned zones and differential equations are developed for the change in pressure and change in temperature in each zone. The modelling is based on equations for energy and mass conservation, equation of state, and burned mass fraction. The assumption is made that both zones are at the same pressure P, and the ignition temperature is the adiabatic flame temperature based on the mixture enthalpy at the onset of combustion. The developed code for engine simulation in MATLAB is applied to another engine and there is a good agreement between results of this code and results related to the engine chosen for validation, so the modelling is independent of configuration.

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15

Shih, A. J. "Kinematics of the Cycloidal Internal Combustion Engine Mechanism." Journal of Mechanical Design 115, no. 4 (December 1, 1993): 953–59. http://dx.doi.org/10.1115/1.2919293.

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The application of the characteristics of cycloidal curves for the four-stroke rotary internal combustion engine mechanism is introduced. The major components of the cycloidal engine mechanism include a flywheel, a stationary sun gear, planetary gears, rotary bars, and rotary pistons. The rotary pistons are fixed to bars driven by pins of the planetary gears, and these pins follow a common trajectory of epicyloidal or hypocycloidal curve. Several combustion chambers are created by the rotary pistons. As the flywheel makes a complete revolution, the relative motion between rotary pistons and the specially positioned intake ports, exhaust ports, and fuel injector generate four-stoke cycles within each of the combustion chambers. The constraint and classification of the application of different cycloidal curves for the rotary engine mechanism are then presented. Further, the mathematical modeling is developed. The position, velocity, and acceleration analyses of the rotary pistons of the cycloidal engine mechanisms are presented.

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16

Melnarowicz, Władysław. "Wankel Engines for Unmanned Aerial Vehicles." Journal of KONBiN 44, no. 1 (December 1, 2017): 267–74. http://dx.doi.org/10.1515/jok-2017-0072.

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Abstract The article presents the possibility of using a rotary piston engine, called the Wankel engine, to drive for unmanned aerial vehicles. It describes the principle of engine operation, its advantages and disadvantages. The article specifies the categories of drones to which these engines are dedicated. The author presents the modular Wankel engine of 5-120 hp for unmanned aerial vehicles, manufactured by Advanced Innovative Engeeniering.

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17

Gorla, R. S. R., and T. A. Bartrand. "Couette Flow Heat Loss Model for the Rotary Combustion Engine." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 210, no. 6 (November 1996): 587–96. http://dx.doi.org/10.1243/pime_proc_1996_210_233_02.

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A novel model for predicting heat transfer in a rotary engine was formulated and implemented in a zero-dimensional engine performance model. Results were compared with a commonly used intermittent combustion engine heat transfer model and with results from a three-dimensional simulation of flow within a rotary engine. When squish effects associated with fluid motion within the chamber were included, the Couette flow model reproduced peak heat transfer rates and timing for the peak heat transfer rate was better than that of the commonly used heat transfer model. Previously, rotary engine performance models have employed flat plate type heat transfer correlations. These correlations, though useful, do not model the flow physics in the rotary engine faithfully. Rather than flow over a flat plate, flow in the rotary engine was approximated as turbulent Couette flow. The Couette model was altered to account for centre-line velocities higher than half the rotor speed. There are two advantages to using the Couette flow model. Firstly, as noted, the underlying physics of the Couette flow model is closer to conditions in the rotary engine. Secondly, with the Couette flow model it is possible to differentiate between the rotor and housing heat transfer coefficients.

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18

Ambrozik, Andrzej, Tomasz Ambrozik, Dariusz Kurczyński, and Piotr Łagowski. "Comparative Assessment of CI Engine Response." Transport and Communications 2, no. 1 (2014): 1–4. http://dx.doi.org/10.26552/tac.c.2014.1.1.

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The response of the piston internal combustion engine provides an important indicator to assess the engine ability to adapt to constantly varying load conditions in its operation. It is the main criterion by which engines powering automotive vehicles are evaluated. It also affects road safety. The engine response depends on the profile of the curve that shows changes in the engine torque as a function of the crankshaft rotational speed. The paper presents a comparison of CI engines representing different generations with respect to constructional level. The engines that underwent comparison were equipped with the fuel system with a rotary injection pump and with Common Rail fuel system.

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19

Tucker, R. W., C. Wang, and B. V. Librovich. "Mathematical modelling of rotary vane engines." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 217, no. 6 (June 1, 2003): 687–704. http://dx.doi.org/10.1243/095440603321919608.

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This paper introduces mathematical modelling techniques that are designed to analyse the dynamic behaviour of a class of rotary vane engines. These engines employ non-circular gears for the transmission of primary torque and the modelling explores ways to ensure that torque fluctuations in the flywheel are small. The basic physical principles of rigid-body dynamics are used to formulate a system of non-linear ordinary differential equations describing the rolling motion of two-dimensional rigid laminae. It is argued that such a system offers a valuable first approximation for the study of a realistic engine consisting of two connected combustion units.

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20

Ki, Dockjong. "Separate Type Rotary Engine Cycle Analysis." Journal of the Korean Society of Propulsion Engineers 23, no. 3 (June 1, 2019): 104–11. http://dx.doi.org/10.6108/kspe.2019.23.3.104.

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21

Drbal, Milan, and David Svida. "Mathematical modelling of the rotary engine." Vibroengineering PROCEDIA 19 (September 24, 2018): 289–92. http://dx.doi.org/10.21595/vp.2018.20240.

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22

French, C. C. J. "Alternative Engines—Curiosities or Competitors?" Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power Engineering 203, no. 2 (May 1989): 79–96. http://dx.doi.org/10.1243/pime_proc_1989_203_012_02.

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This paper describes different types of engine used for transportation purposes. Some of the more interesting developments in spark ignition and diesel engines are outlined, but the paper is mainly a review of some of the alternative power plants that have been studied over the past 40 years. These include vapour cycle engines, free-piston engines, compound engines, Stirling engines, gas turbines, stratified charge engines, the catalytic engine, rotary engines and two-stroke spark ignition engines. The paper concludes by discussing possible future developments for some of these alternative engines.

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23

Warren, Sarah, and Daniel C. H. Yang. "Design of rotary engines from the apex seal profile (Abbr.: Rotary engine design by apex seal)." Mechanism and Machine Theory 64 (June 2013): 200–209. http://dx.doi.org/10.1016/j.mechmachtheory.2013.01.015.

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24

Laube, Tomasz, and Janusz Piechna. "Analytical and Numerical Feasibility Analysis of a Contra-Rotary Ramjet Engine." Energies 13, no. 1 (December 30, 2019): 163. http://dx.doi.org/10.3390/en13010163.

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A new idea for a contra-rotary ramjet engine is presented. To define the theoretical limits of the non-typical, contra-rotary ramjet engine configuration, its analytical model was developed. The results obtained from that model and the analytical results were compared with those received from numerical simulations. The main weakness of existing rotary ramjet engine projects is the very high rotational speed of the rotor required for achieving supersonic inlet flow. In this paper, a new idea for a contra-rotary ramjet engine (CORRE) is presented and analyzed. This paper presents the results of analytical analysis and numerical simulations of a jet engine system with two rotors rotating in opposite directions. Contra-rotating rotors generate a supersonic air velocity at the inlet to the compressor at two times slower rotor’s speed. To determine the flow characteristics, combustion process, and engine efficiency of the double-rotor engine, a numerical solution of the average Navier-Stokes equations was used with the k-eps turbulence model and the non-premixed combustion model. The results of numerical simulations of flow and the combustion process inside the contra-rotary jet engine achieving a shockwave compression are shown and compared with similar data for a single-rotor engine design and analytical data. This paper presents only the calculation results of the flow processes and the combustion process, indicating the advantages of the proposed double-rotor design. The results of the numerical analysis were presented on the contours and diagrams of the pressure and flow velocity, temperature distribution, and mass fraction of the fuel.

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25

Приходьков, K. Prikhodkov, Захаров, E. Zakharov, Федянов, E. Fedyanov, Левин, Yu Levin, Алексейчук, and V. Alekseychuk. "INFLUENCE OF HYDROGEN ADDITION TO ENVIRONMENTAL INDICATORS OF ROTARY-PISTON WANKEL ENGINE." Alternative energy sources in the transport-technological complex: problems and prospects of rational use of 2, no. 2 (December 17, 2015): 392–96. http://dx.doi.org/10.12737/17778.

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The results of the experimental research workflow rotary-piston engine VAZ-311 with the addition of hydrogen at idle and average urban cycle are observed. The results show an improvement of the environmental performance of rotary-piston engine.

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26

Kutlar, Osman Akin, and Fatih Malkaz. "Two-Stroke Wankel Type Rotary Engine: A New Approach for Higher Power Density." Energies 12, no. 21 (October 26, 2019): 4096. http://dx.doi.org/10.3390/en12214096.

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The Wankel engine is a rotary type of four-stroke cycle internal combustion engine. The higher specific power output is one of its strong advantages. In Wankel rotary engine, every eccentric shaft revolution corresponds to one four-stroke cycle, whereas conventional reciprocating engine fulfills four-stroke cycle in two crankshaft revolutions. This means the power stroke frequency is twice that of conventional engines. Theoretically, application of two-stroke cycle on Wankel geometry will duplicate the power stroke frequency. In this research, a single-zone thermodynamic model is developed for studying the performance characteristic of a two-stroke Wankel engine. Two different port timings were adapted from the literature. The results revealed that late opening and early closing port geometry (small opening area) with high supercharging pressure has higher performance at low speed range. However, as the rotor speed increases, the open period of the port area becomes insufficient for the gas exchange, which reduces power performance. Early opening and late closing port geometry (large opening area) with supercharging is more suitable in higher speed range. Port timing and area, charging pressure, and speed are the main factors that characterize output performance. These preliminary results show a potential for increasing power density by applying two-stroke cycle of the Wankel engine.

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27

Librovich, B. V., and A. F. Nowakowski. "Analysis, Design, and Modeling of a Rotary Vane Engine (RVE)." Journal of Mechanical Design 126, no. 4 (July 1, 2004): 711–20. http://dx.doi.org/10.1115/1.1711823.

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This paper introduces a mathematical model to analyze the dynamic behavior of a novel rotary vane engine (RVE). The RVE can be considered to have a number of advantages when compared to a majority of other reciprocating engine types. The advantages are found in the simple structure and the small number of moving parts. In this paper the geometrical structure and dynamical behavior of engines with a different number of work units is considered in detail. This has been examined through a study of torque transmission with a particular reference to how this is affected by the noncircular geometry of gear pitch curves. Using the Coulomb friction model, consideration has been given to the mechanical power loss due to friction in different parts of the engine, which must be taken into account. The study also proposes a possible method for balancing of asymmetric cogwheels. The analysis concludes that by using an appropriate design and arrangement of cogwheels and all moving parts, vibration can be attenuated due to impulsive gas torque.

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28

DRBAL, Milan. "A METHOD OF ROTARY ENGINE PERFORMANCE PREDICTION." Scientific Journal of Silesian University of Technology. Series Transport 108 (September 1, 2020): 37–43. http://dx.doi.org/10.20858/sjsutst.2020.108.4.

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29

Liao, Yu Chung, Shen Tsao Hung, and Jau Huai Lu. "Rotary Stirling Engine for Exhaust Energy Recovery." Advanced Materials Research 347-353 (October 2011): 3193–96. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.3193.

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A new type of rotary Stirling engine for exhaust energy recovery is introduced in this paper. This engine is constructed by two eccentric cylinders with displaced centers. The space between these two circles is divided into four chambers. The outside cylinder is stationary while the inside cylinder rotates at a constant speed. The volume of each chamber would vary during the rotation. Part of the wall of the outside cylinder in the circumferential direction is heated with hot gas and the other part of the wall is otherwise cooled with atmosphere air such that the engine could deliver work as heat transfer occurs during rotation. A thermodynamic model of this engine was developed in this paper, and the effect of some parameters, including rotation speed, mass of air inside chamber, compression ratio and different heating temperatures, on the output power as well as thermal efficiency was investigated. It was found that the highest efficiency can reach 10.8% and the maximum output power can reach 0.3684W. The compression ratio of 4 was found to have the highest efficiency, and the compression ratio of 6 was found to have the maximum power output. Besides, it was found that as heating temperature increases the efficiency and power increase too

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30

Budny, Łukasz, Marcin Sosnowski, Tomasz Dembiczak, Piotr Sawicki, Krzysztof Gospodarek, Katarzyna Ciesielska, and Marek Orkisz. "Design and motion analysis of rotary engine." Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa 4 (2016): 69–76. http://dx.doi.org/10.16926/tiib.2016.04.06.

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31

Nizar, Jaber, Manabu Mukai, Ryoji Kagawa, Haruki Nakakura, Osamu Moriue, and Eiichi Murase. "Amelioration of Combustion of Hydrogen Rotary Engine." International Journal of Automotive Engineering 3, no. 3 (2012): 81–88. http://dx.doi.org/10.20485/jsaeijae.3.3_81.

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32

A. Murphy, Braden, Erica A. Fraser, and Darrel A. Doman. "Review of Recent Toroidal Rotary Engine Patents." Recent Patents on Mechanical Engineering 6, no. 1 (December 1, 2012): 26–36. http://dx.doi.org/10.2174/2212797611206010003.

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33

ZHAO, Chengguang, Michihiko TABATA, Ryosuke HARA, Jyong-Ho YUN, and Wu ZHANG. "Research on Mixture Formation of Rotary Engine." Proceedings of Conference of Chugoku-Shikoku Branch 2019.57 (2019): 706. http://dx.doi.org/10.1299/jsmecs.2019.57.706.

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34

O'Brien, C. "New enzyme structure reveals cell's rotary engine." Science 265, no. 5176 (August 26, 1994): 1176–77. http://dx.doi.org/10.1126/science.8066459.

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35

Zyatikov, Pavel, Michail Vasilevsky, Vera Deeva, and Aleksandr Burykin. "Separation of Particles in Channels Rotary Engine." MATEC Web of Conferences 23 (2015): 01011. http://dx.doi.org/10.1051/matecconf/20152301011.

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36

Drbal, Milan. "Computational Model of Rotary Engine Thermodynamic Cycle." Acta Mechanica Slovaca 23, no. 2 (June 28, 2019): 26–29. http://dx.doi.org/10.21496/ams.2019.012.

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37

NIWA, Yasushi. "Rotary Engine-Current Status and Future Prospect." Journal of the Society of Mechanical Engineers 102, no. 970 (1999): 553–55. http://dx.doi.org/10.1299/jsmemag.102.970_553.

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38

Nalim, M. R., Z. A. Izzy, and P. Akbari. "Rotary wave-ejector enhanced pulse detonation engine." Shock Waves 22, no. 1 (December 3, 2011): 23–38. http://dx.doi.org/10.1007/s00193-011-0348-5.

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39

Khaliullin, F. Kh, K. A. Khafizov, R. A. Usenkov, and R. A. Latypov. "Advanced engines for non-conventional kinematic chains in agriculture." BIO Web of Conferences 27 (2020): 00123. http://dx.doi.org/10.1051/bioconf/20202700123.

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To intensify agricultural production in the market environment, it is necessary to reconstruct the whole economic mechanism considering energy efficiency. This calls for the search of new ideas for alternative designs and engine types that can raise the performance of heat engines to a new level while keeping their use in vehicles, machinery, and small energy facilities feasible. One of the options is the displaced shaft rotary engine. This article analyses the kinematic and dynamic metrics of the engines of this type and presents the calculations of these metrics for the prototype. Key advantages and disadvantages of this type of engine in terms of working process dynamics are set out. It is also compared to the reciprocal internal combustion engine of the same structural dimensions.

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40

Beard, J. E., A. S. Hall, and W. Soedel. "Comparison of Hypotrochoidal and Epitrochoidal Gerotors." Journal of Mechanical Design 113, no. 2 (June 1, 1991): 133–41. http://dx.doi.org/10.1115/1.2912761.

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The planar rotary mechanisms, by virtue of its volume changing ability can be used as a pump, engine, or compressor. Most of the types of rotary mechanisms used today, from the Wankel rotary engine to the gerotor pump, are based on epitrochoidal generation and its conjugate shape. This paper presents a very general mathematical relationship for a generating arc traveling on a hypotrochoidal path and also compares the flow rate, pocket displacement, and compression ratios of the hypotrochoidal and epitrochoidal generated profiles.

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41

Zhuravlev, Yury, Andrey Perminov, Yury Lukyanov, Sergey Tikhonov, Alexander Ilyin, and Sergey Semyonov. "OPTIMIZATION OF MECHANICAL STRENGTH OF ROTARY-VANE ENGINE." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 357. http://dx.doi.org/10.17770/etr2017vol3.2511.

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The article discusses a rotory-vane heat engine with a lever-cam mechanism motion conversion (an engine may be an internal combustion or external combustion). The output shaft of the engine adds drive torque from the working fluid pressure forces acting on the blade and the inertial moment of the forces of inertia of engine components. The mechanical strength of the motor is dependent on the magnitude and phase of these two torque. The purpose of the article is to determine the conditions under which mechanical strength is minimized.

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Wang, Dong Jie, and Zheng Xing Zuo. "Steady Heat Transfer Analysis of Leaf Spring Rotary Engine." Applied Mechanics and Materials 157-158 (February 2012): 901–6. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.901.

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This paper presents the heat transfer simulation of a new kind of rotary engine called Leaf Spring Rotary Engine. The structure and the principle of the prototype engine were introduced. The thermodynamic models including heat transfer model were presented. The contrast of the performance parameters between the heat transfer condition and the ideal condition was presented and the effect of the heat transfer to the performance of the engine was analyzed. It showed that the heat transfer loss would account for 24% of the input energy at the rated speed of 3000r/min. At the same time, the effect of ignition position to the performance of the engine was analyzed. The work would be used in the combustion system design and the performance optimization.

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Zhang, Lei, Cun Yun Pan, Xiao Chong Wang, Hao Deng, and Hu Chen. "Dynamic Study of Valve Train for Rotary Piston Engine." Applied Mechanics and Materials 184-185 (June 2012): 170–74. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.170.

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Rotary Piston Engine is a new kind of rotary engine. To analyze the dynamic character of the valve system, kinematics equations are established using dynamical method. Dynamic response of the valve is studied by calculating the outcome using numerical method.FFT analysis is applied here to analyze the response curve. The result shows that the Valve Train covers the basic need, but the dynamic performance of the system still could be improved.

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Sakita, Masami. "A Cat-and-Mouse Type Rotary Engine: Engine Design and Performance Evaluation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 220, no. 8 (August 2006): 1139–51. http://dx.doi.org/10.1243/09544070jauto223.

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Georgiou, Demos P., Nikolaos G. Theodoropoulos, and Kypros F. Milidonis. "Ideal Thermodynamic Cycle Analysis for the Meletis-Georgiou Vane Rotary Engine Concept." Journal of Thermodynamics 2010 (July 5, 2010): 1–9. http://dx.doi.org/10.1155/2010/130692.

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The Meletis-Georgiou is a patented Vane Rotary Engine concept that incorporates separate compression-expansion chambers and a modified Otto (or Miller) cycle, characterized by (Exhaust) Gas Recirculation at elevated pressures. This is implemented by transferring part of the expansion chamber volume into the compression one through the coordinated action of two vane diaphragms. This results into a very high gas temperature at the end of the compression, something that permits autoignition under all conditions for a Homogeneous Compression Ignition (HCCI) version of the engine. The relevant parametric analysis of the ideal cycle shows that the new cycle gives ideal thermal efficiencies of the order of 60% to 70% under conditions corresponding to homogeneous compression engines but at reduced pressures when compared against the corresponding Miller cycle.

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Sun, Xiao Jing, Xing Gui Wang, and Chun Ning Wang. "The Research and Application of the Internal Combustion Engine Power Plant--Rotary UPS Monitoring Systems." Advanced Materials Research 328-330 (September 2011): 2207–10. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.2207.

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The Internal Combustion Engine Power Plant and Flywheel Battery were the two primarily compositive units of the Internal Combustion Engine Power Plant --Rotary UPS, among them the Internal Combustion Engine Power Plant ensured the continuous power supply to the load after the breaking of the mains supply, the Flywheel Battery ensured the uninterruptible continuous power supply to the load when mains supply switched to the Internal Combustion Engine Power Plant, so the paper started with the two units, Introduced the control system structure and principle, and focused on discussing the method of achieving the Internal Combustion Engine Power Plant --Rotary UPS telecommunication by Ethernet. The method had been applied in correlative production. The practice showed that it was convenient for usage and high reliability.

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Finkelberg, Lev, Alexander Kostuchenkov, Andrei Zelentsov, and Vladimir Minin. "Improvement of Combustion Process of Spark-Ignited Aviation Wankel Engine." Energies 12, no. 12 (June 15, 2019): 2292. http://dx.doi.org/10.3390/en12122292.

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This paper deals with the creation of modern high-performance aircraft power units based on the Wankel rotary piston engine. One of the main problems of Wankel engines is high specific fuel consumption. This paper solves the problem of improving the efficiency of this type of engine. The mathematical model of non-stationary processes of transfer of momentum, energy, mass, and the concentration of reacting substances in the estimated volume provides for the determination of local gas parameters in the entire computational region, which are presented as a sum of averaged and pulsation components. The k-ζ-f model is used as the turbulence model; the combustion is described by the coherent flame model (CFM) based on the concept of laminar flame propagation. As a result of the calculation, we obtained the values of temperature, pressure, and velocity of the working fluid in the working chamber cross-sections of a rotary–piston engine. Various options of the rotor recess shape are considered. Based on the data obtained, the rotor design was improved. The offered shape of the rotor recess has reduced emissions of both nitrogen oxides and carbon dioxide.

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Naswir, Naswir, Elvin Hasman, and A. Irwan. "Rotary Electrical Controlled Drum Dryer for Organic Fertilizer Production." Journal of Applied Agricultural Science and Technology 3, no. 2 (August 31, 2019): 320–27. http://dx.doi.org/10.32530/jaast.v3i2.104.

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this research is aim to provide design and prototype of rotary electrical controled drumdrier machine for drying organic fertilizer to increased production capacity and quality by using a source of heat energy from electricity. This machine consists of five main components i.e. drying cylinder, heating unit, support frame, engine and transmission system. Engine specifications are high 130 cm, 720 cm long, and 120 cm wide, cylinder diameter 60 cm, power engine 14 hp, and heating temperature 142 oC. engine performance test are: capasity 805,03 kg/hours, drying rate 27,40 %/hours, noise level 81,54 db. cost analysis result are operational cost 155,06 Rp/kg and Break Event Point 159.219,73 kg/years

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Picard, Mathieu, Hiroyuki Hidaka, Tian Tian, Takayuki Nishino, Eiji Arai, and Masaki Ohkubo. "Visualization of the Rotary Engine Oil Transport Mechanisms." SAE International Journal of Engines 7, no. 3 (April 1, 2014): 1477–88. http://dx.doi.org/10.4271/2014-01-1665.

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Zhuravlyov, Yu N., S. N. Semyonov, J. N. Lukyanov, A. L. Perminov, S. I. Tikhonov, and M. A. Donchenko. "CALCULATION TEMPERATURE AND PRESSURE OF THE ROTARY ENGINE." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 3 (June 16, 2015): 223. http://dx.doi.org/10.17770/etr2015vol3.195.

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<p>The principles of calculating the temperature and pressure in the working chambers of the rotary vane engine with an external supply of heat are considered. The mathematical model for calculating the pressure and the temperature in the chamber with heat transfer between the working fluid and the chamber walls is built. The plots of the dependence of the pressure and the temperature in the chamber on the angle of rotation of the output shaft at the minimum and maximum temperature of the walls are obtained.</p>

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