Precombustion Fuel/Air Distribution in a Stratified Charge Engine Using Laser Raman Spectroscopy

Format:

Conference/Event

Author/Creator:

Johnston, Sheridan C., author.

Conference Name:

1979 Automotive Engineering Congress and Exposition (1979-02-26 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1979

Summary:

AbstractThe application of cw laser Raman spectroscopy to determine precombustion fuel/air distribution in a motored, direct-injected stratified charge (DISC) engine has been demonstrated. The primary objective of the study was to obtain point measurements of the mean, gas-phase fuel/air ratio across a diameter in the combustion chamber for a single set of engine operating parameters. A secondary objective was to obtain flow visualization records of the injection-mixing process for both liquid- and gas-phase fuel injection.Results of the study showed that large spatial variations in the fuel/air ratio occur in the cylinder during and after fuel injection. Near top-dead-center, fuel/air mixing was nearly complete, but the distribution across the cylinder diameter still exhibited a region of relatively low fuel concentration

Notes:

Vendor supplied data

Publisher Number:

790433

Access Restriction:

Restricted for use by site license