Title:
FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2018/198216
Kind Code:
A1
Abstract:
A fuel injection valve (1) has, in a cavity formed in the tip portion thereof, swirl portions (15) for swirling a fuel flowing into respective injection holes (12), and a swirl passage (16) for introducing the fuel into the swirl portions (15). The swirl passage (16) has a passage width W that increases toward the downstream side, and the two swirl portions (15) are connected, with a space therebetween, to both ends of the downstream side end portion of one swirl passage (16) in the passage width W direction. With such a configuration, the fuel flows out along a first wall surface (16a) and a second wall surface (16b) of the swirl passage (16) in the radial direction with the center Z of a valve seat opening (10b) as a base point, and the flow thereof is efficiently adjusted, whereby a uniform swirling flow can be created by the swirl portions (15), and atomization of the spray can be achieved.
Inventors:
KAWASAKI SHOTA (JP)
MUNEZANE TSUYOSHI (JP)
ITO KEISUKE (JP)
MUNEZANE TSUYOSHI (JP)
ITO KEISUKE (JP)
Application Number:
PCT/JP2017/016483
Publication Date:
November 01, 2018
Filing Date:
April 26, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F02M61/18; B05B1/34
Foreign References:
| JP2000517025A | 2000-12-19 | |||
| US6142390A | 2000-11-07 | |||
| US20050103900A1 | 2005-05-19 | |||
| US7448560B2 | 2008-11-11 | |||
| JP2013142323A | 2013-07-22 | |||
| JP2014526013A | 2014-10-02 |
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
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