This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simulation Study of Force Distribution in the Multiple Linkage System of a Spark Ignition Engine Operating in the Atkinson Cycle
Technical Paper
2020-01-2226
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The tests were carried out on an 3D engine model with an unconventional multiple linkage system. Compared to a classic crankset, the mechanism consists of more elements. In this multiple linkage system the camshaft, the piston rod and the main rod are connected to one common element. The camshaft rotating during operation at twice the speed of the crankshaft makes possible to achieve different piston stroke lengths with each revolution. With proper synchronization of the camshaft revolution with the crankshaft, the suction and compression stroke is smaller in relation to the expansion and exhaust strokes. For this reason, the Atkinson cycle was obtained without interfering with the variable valve timing. The thermal cycle is characterized by increased theoretical thermal efficiency. Due to the unique mechanism, the piston movement has different characteristics compared to classic solutions. Therefore, work was undertaken to analyze the distribution of forces in the system. For the needs of the work, a 3D model of the described engine was created. It was used to examine the characteristics of the piston path during operation. Using computer simulation, piston movement and forces occurring in the system were analyzed. Numerical simulations of combustion process were also carried out in a program designed for internal combustion engines. The most important thermodynamic indices such as pressure distributions, temperatures and heat release are presented. Identical tests were also carried out for the engine with a conventional crank system. The results of both engines were combined and analyzed.
Authors
Topic
Citation
Urbański, P., Daszkiewicz, P., Bajerlein, M., Rymaniak, L. et al., "Simulation Study of Force Distribution in the Multiple Linkage System of a Spark Ignition Engine Operating in the Atkinson Cycle," SAE Technical Paper 2020-01-2226, 2020, https://doi.org/10.4271/2020-01-2226.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Atkinson , J. 16 February 1886
- Jinxing , Z. Research and Application of Over-Expansion Cycle (Atkinson and Miller) Engines Applied Energy 185 300 319 2017
- Pertl , P. , Trattner , A. , Abis , A. , Schmidt , S. et al. Expansion to Higher Efficiency - Investigations of the Atkinson Cycle in Small Combustion Engines SAE Technical Paper 2012-32-0059 2012 https://doi.org/10.4271/2012-32-0059
- Hakariya , M. , Toda , T. , and Sakai , M. The Nrew Toyota Inline 4-Cylinder 2.5L Gasoline Engine SAE Technical Paper 2017-01-1021 2017 WCX™ 17: SAE World Congress Experience https://doi.org/10.4271/2017-01-1021
- He , Y. , Liu , J. , Sun , D. , and Zhu , B. Development of an Aggressive Miller Cycle Engine with Extended Late-Intake-Valve-Closing and a Two-Stage Turbocharger J. of Auto. Eng. 233 2 413 426 2019
- Ge , Y. , Chen , L. , and Sun , F. Performance of an Atkinson Cycle with Heat Transfer, Friction and Variable Specific-Heats of the Working Fluid Appl. Energy 83 1210 1221 2006
- Ge , Y.L. , Chen , L.G. , and Sun , F.R. Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles Entropy 18 139 2016
- Chen , L.G. , Lin , J.X. , Sun , F.R. , and Wu , C. Efficiency of an Atkinson Engine at Maximum Power Density Energy Convers. Manag. 39 337 341 1998
- Wang , P.Y. , and Hou , S.S. Performance Analysis and Comparison of an Atkinson Cycle Coupled to Variable Temperature Heat Reservoirs Under Maximum Power and Maximum Power Density Conditions Energy Convers. Manag. 46 2637 2655 2005
- Gonca , G. Thermodynamic Analysis and Performance Maps for the Irreversible Dual-Atkinson Cycle Engine (DACE) with Considerations of Temperature-Dependent Specific Heats, Heat Transfer and Friction Losses Energy Convers. Manag. 111 205 216 2016
- Curto-Risso , P.L. , Medina , A. , and Calvo Hernández , A. Optimizing the Operation of a Spark Ignition Engine: Simulation and Theoretical Tools J. Appl. Phys. 105 094904 2009
- Nguyen , V.D. , and Duy , V.N. Numerical Analysis of the Forces on the Components of a Direct Diesel Engine J. Appl. Scien. 8 5 761 2018
- Nigus , H. Kinematics and Load Formulation of Engine Crank Mechanism Mechanics, Materials Science & Engineering Journal 2015 2412-5954
- May 23, 2018
- Cheng , C. Power Cylinder System for Internal Combustion Engines Improvement Trends for Internal Combustion Engines 2017 http://dx.doi.org/10.5772/intechopen.69762
- Hou , S.S. Comparison of Performances of Air Standard Atkinson and Otto Cycles with Heat Transfer Considerations Energy Convers. Manag. 48 1683 1690 2007
- Tavakoli , S. , Ganji , D. , Gorji , M. , Rasekh , A. , and Naeejee , S. Different Camshaft Profile Analyses for Natural Gas Engine Performance and Emission Journal of the Brazilian Society of Mechanical Sciences and Engineering 38 355 364 2016
- AVL Fire 2017