1981-06-01

Lean Combustion in a High Compression Four Stroke Gasoline Engine 810786

To achieve lean combustion in a gasoline engine, a swirl type combustion chamber is placed in the piston top. The compression swirl thereby created makes a rapid combustion possible, which is essential to a lean burn engine.The experiments are carried out with a single cylinder four stroke engine, mainly at a compression ratio of 13.8:1, and are compared to a Heron-type combustion chamber.Minimum fuel consumption is obtained at an air-fuel ratio of 19, and as an average, an improvement of approximately 5 per cent is found.The peak cylinder pressure is reduced in comparison to the Heron chamber at the same compression ratio.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.
X