Browse Publications Technical Papers 640060
1964-01-01

A Variable Compression Ratio Engine Development 640060

This paper describes the theory, mechanical execution, and development of an automatic, hydraulically-actuated piston that provides a practical method of obtaining a variable compression ratio engine. When applied to compression-ignition engines, an increase in output of 50% (0.5 to 0.75 bhp/cu in.) has been achieved without a corresponding increase in maximum combustion pressure. By providing a high compression ratio for starting and light load conditions, the engine has demonstrated substantial improvements in cold starting ability as well as improved potential for multifuel operation.

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:
TECHNICAL PAPER

Recent Developments in Variable Compression Ratio Engines

660344

View Details

TECHNICAL PAPER

Analysis of the Combustion Process of a Spark ignition Engine with a Variable Compression Ratio

870610

View Details

TECHNICAL PAPER

Compression Ratio Optimization in a Direct-Injection Diesel Engine: A Mathematical Model

880427

View Details

X