Fuel Spray Pattern Control Using L-Step Nozzle for Swirl-Type Injector Mechanical Engineering Research Laboratory, Hitachi, Limited

Format:

Conference/Event

Author/Creator:

Abe, Motoyuki, author.

Conference Name:

SAE 2004 World Congress & Exhibition (2004-03-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

We propose a spray pattern control method for swirl-type injectors in direct injection (DI) gasoline engines. An L-cut orifice nozzle (L-Step nozzle) that produces a horseshoe spray pattern is used to create a rich and lean concentration region. To further control the distribution of fuel, the relationship between the nozzle geometry and the spray pattern is investigated. The mechanism for a horseshoe spray formation is hypothesized and verified through experiment. The spray shape and fuel distribution is found to be controllable by configuring the L-cut step-walls. Furthermore, it is discovered that independent control of rich and lean region distribution is possible by arranging the step-wall position and height

Notes:

Vendor supplied data

Publisher Number:

2004-01-0540

Access Restriction:

Restricted for use by site license