Experimental Investigation of an Optical Direct Injection S.I. Engine Using Fuel-Air Ratio Laser Induced Fluorescence CERTAM - ROUEN

Format:

Conference/Event

Author/Creator:

Sacadura, J. Christian, author.

Conference Name:

CEC/SAE Spring Fuels & Lubricants Meeting & Exposition (2000-06-19 : Paris, France)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

To provide fuel/air ratio quantitative measurements in an S.I engines, a transparent cylinder engine is investigated with the Fuel-Air Ratio Laser Induced Fluorescence (FARLIF) technique. In a homogeneous mixture, the two dimensional distribution for the fuel/air ratio is calibrated and measured during the compression stroke for different equivalence ratios. After spark ignition, the combustion zone and the flame front are visualized by laser sheet LIF.The direct-injection stratified-charge, new concept for gasoline engines is investigated with FARLIF. In the direct injection gasoline engine where the fuel is directly injected into a cylinder and the flow is highly turbulent, two injection timings are used: -early injection (id est during the intake stroke) to promote a homogeneous distribution; -late injection during the compression stroke, to generate a ultra-lean stratified charge. While the early fuel injection shows a homogeneous vapor phase during the compression stroke, the late injection shows a stratified mode with the presence of both liquid and vapor phases

Notes:

Vendor supplied data

Publisher Number:

2000-01-1794

Access Restriction:

Restricted for use by site license