Influence of fuel-oil temperature on the combustion in a prechamber compression-ignition engine / by Harold C. Gerrish and Bruce E. Ayer.

Format:

Book

Government document

Author/Creator:

Gerrish, Harold C., author.

Ayer, Bruce E., author.

Contributor:

United States. National Advisory Committee for Aeronautics, issuing body.

Series:

Technical note (United States. National Advisory Committee for Aeronautics) ; 565.

Technical note / National Advisory Committee for Aeronautics ; No. 565

Language:

English

Subjects (All):

Diesel motor.

Fuel--Combustion.

Fuel.

Fuel--Temperature.

Physical Description:

1 online resource (13 pages, 9 unnumbered pages) : illustrations.

Place of Publication:

Washington, [D.C.] : National Advisory Committee for Aeronautics, 1936.

Summary:

The influence of fuel-oil temperature on combustion was investigated by injecting the fuel into the prechamber of a single-cylinder, 4-stroke-cycle, water-cooled, compression-ignition engine operating at 1,500 r.p.m. and at a compression ratio of 13.5. Indicator cards, exhaust-gas samples, and engine-performance data were obtained for changes in fuel temperature from 124 degrees to 750 degrees F. the injection characteristics of the fuel system and the appearence of the fuel spray were studied by injecting the fuel into the atmosphere. A common-rail fuel-injection system was used with a hydraullical controlled fuel-injection valve operating at a pressure of 8,800 pounds per square inch. The fuel was heated by passing it through an electric heater inserted between the pump and the injection valve.

The results showed that heating the fuel oil to 750 degrees F. increased the injection period, changed the rate of injection, and eliminated the spray core. Engine tests showed that the ignition lag, rate of pressure rise, and maximum cylinder pressure were reduced. The indicated mean effective pressure, the fuel economy, and the thermal efficiency were slightly increased. Operation of the engine when the fuel was heated to 750 degrees F. was smoother, the exhaust clearer, and the carbon formation in the combustion chamber considerably less than when the fuel was heated to 124 degrees F.

Notes:

Title from title screen (viewed April 13, 2020).

"April 1936."

"Langley Memorial Aeronautical Laboratory."

No Federal Depository Library Program (FDLP) item number.

Includes bibliographical references (page 13).

Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.

Other Format:

Print version: Gerrish, Harold C. Influence of fuel-oil temperature on the combustion in a prechamber compression-ignition engine

OCLC:

1150919724