Study of The Inhomogeneity Between Work Cycles in An Internal Combustion Engine

9 pages•Published: July 19, 2023

Abstract

Analysis of the main factors causing instability in an internal combustion engine is a fundamental problem in operation research and engine design. The inhomogeneity between work cycles is the cause of the fluctuated power as well as other working parameters of the engine. It is expressed through the amount of fuel supplied to the cycle and the quality of the combustion process. The problem is to find a way to reduce the instability. The creation of devices for instability control based on nonlinear dynamic method is a new direction in studying the essence of inhomogeneity between work cycles. This paper presents experimental results on the instability of the combustion process in an internal combustion engine through the control method of fuel supply time. Studying the orderly structure of the resulting time-series pressure graph will further explain the essence of the inhomogeneity. Based on the results of the investigation of the pressure turbulence in the engine cylinders as well as the inhomogeneity between work cycles determined entirely by random processes, it will be possible to generate a different form of pressure graph using a suitable fuel injection timing device. The selection of signal interval control for injectors is studied and presented in this paper that is the basis for further studies to improve the efficiency of internal combustion engine in each operation mode.

Keyphrases: Combustion process, inhomogeneity, internal combustion engine, turbulent pressure, work cycle

In: Trung Nghia Tran, Quoc Khai Le, Tich Thien Truong, Thanh Nha Nguyen and Hoang Nhut Huynh (editors). Proceedings of International Symposium on Applied Science 2022, vol 5, pages 135--143

Links:	https://easychair.org/publications/paper/mRd8p
	https://doi.org/10.29007/m8cm