Investigation of iVVT Timing and Lift Effects on a Gasoline Spark Ignited IC Engine Performance Using Detailed Numerical Simulation, M.Sc. Thesis Sharif University of Technology ; Hosseini, Vahid (Supervisor) ; Saidi, Mohammad Hassan (Co-Advisor)
Abstract
One strategy for increasing efficiency and decreasing brake specific fuel consumption in spark ignition engines is using variable valve timing mechanism which is proportional to engine speed and load. Variable timing refers to the opening and closing time of inlet and outlet valves and their duration and overlap. In conventional SI engines the performance of valves is designed on a fixed point at special engine load and speed. While investigations show that if performance time of valves is changed according to engine load and speed, performance parameters of engine will improve.
In reviewing articles related to variable valve timing, their effect was considered on volumetric efficiency.... Cataloging briefInvestigation of iVVT Timing and Lift Effects on a Gasoline Spark Ignited IC Engine Performance Using Detailed Numerical Simulation, M.Sc. Thesis Sharif University of Technology ; Hosseini, Vahid (Supervisor) ; Saidi, Mohammad Hassan (Co-Advisor)
Abstract
One strategy for increasing efficiency and decreasing brake specific fuel consumption in spark ignition engines is using variable valve timing mechanism which is proportional to engine speed and load. Variable timing refers to the opening and closing time of inlet and outlet valves and their duration and overlap. In conventional SI engines the performance of valves is designed on a fixed point at special engine load and speed. While investigations show that if performance time of valves is changed according to engine load and speed, performance parameters of engine will improve.
In reviewing articles related to variable valve timing, their effect was considered on volumetric efficiency.... Find in contentBookmark |
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