Affiliation:
1. Department of Mechanical Engineering, Brunel University
2. British Internal Combustion Engines Research Institute, Slough, Berkshire
Abstract
This paper reports the development of a digital computer simulation model for a pressure-relief valve of the differential-angle type which is suitable for use in variable compression ratio pistons. The model was validated using experimental results and is intended as an aid to design. It can predict under unsteady flow the pressure distribution through the valve, the opening and closing pressures, volume flowrate, plunger velocity, and opening period. Predicted and experimental results are presented which show the effect of the valve geometry on its performance. The theoretical approach is also applicable to diesel engine fuel injectors of the differential-angle type.
Subject
Mechanical Engineering,Aerospace Engineering