Improving the design of an internal combustion engine with counter pistons

2021 ◽  
pp. 3-6
Author(s):  
Keyword(s):  
Internal Combustion Engine ◽  
Dynamic Characteristics ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Maximum Torque ◽  
Moment Vector ◽  
Engine Design ◽  
Torque Moment ◽  
Dimensional Parameters ◽  
Crank Mechanism

A new layout of a two-cylinder internal combustion engine with counter-pistons is proposed, which increases its efficiency by reducing the pressure angles. The dynamics of the proposed arrangement of a two-shaft crank-slider internal combustion engine, which provides maximum torque moment at maximum gas pressure in the minimum volume of the combustion chamber, is investigated, which reduces the load on the engine design and its weight and dimensional parameters. The research was carried out by comparing the dynamic characteristics of different engines using vector modular models and the KDAM program. Keywords: internal combustion engine, crank mechanism, indicator diagram, dynamic characteristics, torque moment, vector, contour, model, module [email protected]

scholarly journals Research of the efficiency of using the Miller cycle of an internal combustion engine

2021 ◽  
Vol 22 (2) ◽  
pp. 196-204
Author(s):  
Sergei V. Smirnov ◽  
Alexander R. Makarov ◽  
Ivan A. Zaev ◽  
Gulnara T. Khudaibergenova
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Real Data ◽  
Internal Combustion ◽  
Expansion Ratio ◽  
Miller Cycle ◽  
Otto Cycle ◽  
Atkinson Cycle ◽  
Engine Design ◽  
Intake Pressure

The article is devoted to the study of the possibilities of improving the technical and economic indicators of an internal combustion engine (ICE) through the use of the Miller cycle with a shortened intake. A review of scientific works on the use of the Atkinson cycle and Miller cycle in an internal combustion engine is carried out. A comparative analysis of theoretical cycles: Otto cycle, Atkinson cycle and Miller cycle is carried out. Calculated studies of the influence of the expansion ratio and the pressure increase ratio on the efficiency of the Atkinson cycle have been carried out. The ratios are presented that allow using the Miller cycle with a short inlet to obtain the same theoretical efficiency of the cycle as that of the Atkinson cycle. At the same time, the implementation of the Miller cycle in a real engine design significantly exceeds the possibilities of using the Atkinson cycle. The results of the study showed that the use of the Miller cycle with a shortened intake is preferable, but it must necessarily increase the compression ratio and intake pressure through the use of boost. On the example of real data of the main parameters of the cycle, it is shown that the use of the theoretical Miller cycle can provide a significant up to 12.2% increase in the efficiency of the cycle compared to the Otto cycle. The ratios, conditions and recommendations are presented that allow the effective use of the Miller cycle with a shortened intake in a real engine design.

Internal combustion engine design on IBM platforms

1992 ◽  
Vol 31 (4) ◽  
pp. 774-787
Author(s):  
F. Papetti ◽  
S. Golini ◽  
M. Maggiore ◽  
S. Succi ◽  
P. Gaillard ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Engine Design
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