An investigation for improving power performance by VVT effect of spark ignition engine by WAVE simulation

Author

Ganbold, Tsogtjargal ; Badarch, Bayarsuren ; Bat, Batmunkh

Author_Institution

Sch. of Mech. Eng., MUST, Ulaanbaatar, Mongolia

fYear

2010

Firstpage

408

Lastpage

410

Abstract

This paper is done by simulating 2.0 DOHC engine with WAVE 7.2 program of Ricardo and identified valve timing variables for increasing the performance of the engine. The simulation results are highly agreed with WOT torque experimental data and helped to predict the tendency of performance as the valve timing change. Further, a VVT system can be used to improve fuel consumption, performance and emissions. This paper also describes the effect of VVT terms on WOT power, torque and residual gas content. WOT torque was higher when intake valves were closed early for low rpm and late for high rpm.

Keywords

fuel; intake systems (machines); internal combustion engines; mechanical engineering computing; valves; 2.0 DOHC engine; VVT effect; VVT terms; WAVE 7.2 program; WAVE simulation; WOT power; WOT torque; fuel consumption; residual gas content; spark ignition engine; valve timing change; valve timing variables; Educational institutions; Engines; Predictive models; Torque; Air Fuel ratio (A/F); Maximum Open Point (MOP); Variable Valve Timing (VVT); Wide Open Throttle (WOT); component;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology (IFOST), 2010 International Forum on

Conference_Location

Ulsan

Print_ISBN

978-1-4244-9038-7

Electronic_ISBN

978-1-4244-9036-3

Type

conf

DOI

10.1109/IFOST.2010.5668037

Filename

5668037