Spatially Resolved Determination of Fuel/Air Ratio Inside a Direct Injection SI-Engine Under Real Fuel Conditions Laser-Laboratorium Goettingen e.V, Hans-Adolf-Krebs-Weg 1, D-37077 Goettingen, Germany

Format:

Book

Conference/Event

Author/Creator:

Beushausen, V., author.

Conference Name:

2003 JSAE/SAE International Spring Fuels and Lubricants Meeting (2003-05-19 : Yokohama, Japan)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2003

Summary:

The present work describes a new method which allows the spatially resolved quantitative determination of gaseous hydrocarbon densities in droplet laden flows. The technique is especially dedicated to a quantitative and linearly spatially resolved measurement of air/fuel ratio (λ-value) in direct injection Otto engines under stratified operation and by use of regular gasoline (Euro Super). The new method is based on spontaneous Raman scattering. It is applied to the investigation of the air/fuel ratio distribution inside an in the close surroundings of the spray cone of different DI-fuel injectors under stratified and homogeneous engine operation conditions. Both crank angle resolved snap shot and cyclical averaged measurements are presented. Simultaneously the planar gasoline distribution is detected by LIF of aromatic hydrocarbons which are native constituents of regular gasoline. It is shown, that the linear spatially resolved air/fuel distributions measured by means of LIF correlates well with the Raman data

Notes:

Vendor supplied data

Publisher Number:

2003-01-2007

Access Restriction:

Restricted for use by site license