Experimental Analysis on Fuel Flow Characteristics in the Nozzle for Direct Injection Engines Nippondenso Company, Limited

Format:

Conference/Event

Author/Creator:

Date, Kenji, author.

Conference Name:

International Congress & Exposition (1993-03-01 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1993

Summary:

The purpose of this study is to make clear the relationship between flow characteristics in the nozzle and injected spray characteristics. In this paper, we discuss the effect of the sac volume in the standard hole type nozzle on fuel flow and spray. The main object of this paper is to analyze fuel flow characteristics in the nozzle by using the enlarged model nozzles.Spray investigations confirmed that reducing the sac volume causes changes in the fuel injection direction at the initial stage of injection and in the spray penetration over consecutive injection.Flow investigations in the injection hole clarified that meandering the flow in the hole causes changes in the fuel injection direction. Flow investigations in the sac chamber clarified that separating the flow from the sac wall causes meandering the flow in the hole.Furthermore, the methods to restrain the flow in the sac chamber from separating from the sac wall were discussed

Notes:

Vendor supplied data

Publisher Number:

931002

Access Restriction:

Restricted for use by site license