Particular mechanism for continuously varying the compression ratio for an internal combustion engine

International Conference on Applied Sciences 2017

Raiu, S.^1 ; Ctlinoiu, R.^2 ; Alexa, V.^1 ; Miklos, I.^1 ; Cioat, V.^1

University Politehnica Timisoara, Faculty of Engineering Hunedoara, Department of Engineering and Management, 5 Revolution Street, Hunedoara

331128, Romania^1

Coramex S.R.L., Renault Service, Deva, Romania^2

关键词: Bottom dead centres;    Top dead centres;    Variable compression ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/294/1/012024/pdf
DOI  :  10.1088/1757-899X/294/1/012024

来源: IOP

【 摘 要 】

Variable compression ratio (VCR) is a technology to adjust the compression ratio of an internal combustion engine while the engine is in operation. The paper proposes the presentation of a particular mechanism allowing the position of the top dead centre to be changed, while the position of the bottom dead centre remains fixed. The kinematics of the mechanism is studied and its trajectories are graphically represented for different positions of operation.