Browse Publications Technical Papers 2000-01-1414
2000-11-01

A Variable Valve Timing Engine for the Improvement in Engine Performance and Emission Characteristics 2000-01-1414

A newly designed and developed variable valve lift and timing mechanism is reported in this paper which makes it possible to improve the performance of a single cylinder gasoline engine. This mechanism which was applied to a conventional push-rod, rocker-arm engine, consists of two stages namely phase changer and cam lift duration changer. Consequently valve lift, duration and cam phasing were changed in accordance with engine speed and load. Results of the experiments show that the mechanism functions satisfactory and significant improvements were achieved in power output, fuel consumption, idling quality and exhaust emissions.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
JOURNAL ARTICLE

Multi Attribute Optimization: Fuel Consumption, Emissions and Driveability

2012-01-0946

View Details

TECHNICAL PAPER

Development of Innovative Variable Valve Event and Lift (VVEL) System

2008-01-1349

View Details

TECHNICAL PAPER

BSFC Investigation Using Variable Valve Timing in a Heavy Duty Diesel Engine

2009-01-1525

View Details

X