1978-02-01

Valve Selector Hardware 780146

A mechanism has been developed which deactivates selected valves on a spark ignition engine. Greater fuel economy results from reduced throttling losses when using fewer cylinders under light load conditions. Several approaches were considered, with the releasable fulcrum proving to be the most effective concept. Subsequent engineering efforts refined the design to develop a simple bolt-on device which would meet specific performance requirements.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 18% 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:
TECHNICAL PAPER

THREE DIMENSIONAL CALCULATION OF THE FLOW IN A DI DIESEL ENGINE WITH VARIABLE SWIRL INTAKE PORTS

2001-01-3230

View Details

TECHNICAL PAPER

Development of a New Light Stratified-Charge DISI Combustion System for a Family of Engines With Upfront CFD Coupling With Thermal and Optical Engine Experiments

2004-01-0545

View Details

TECHNICAL PAPER

The 3-D In-Cylinder Charge Motion of a Four-Valve SI Engine under Stroke, Speed, and Load Variation

2000-01-2798

View Details

X