Title:
FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2019/017097
Kind Code:
A1
Abstract:
A fuel injection valve (10) includes: a housing (100) provided with an injection hole (141), through which fuel is injected; a needle (200) that switches between opening and closing of the injection hole by moving inside the housing; a movable core (300) that moves with the needle by being subjected to a magnetic attraction force; and a coil (500) that produces the magnetic attraction force. The needle and the movable core are separated from each other. Assuming that a portion where the movable core and the needle slide on each other is a sliding section (FR), at least one of the movable core and the needle is provided with a supply section (250, 320, 223) through which the fuel is supplied to the sliding section, so that a flow of the fuel is produced at the sliding section when the movable core and the needle move together.
Inventors:
FUJINO TOMOKI (JP)
Application Number:
PCT/JP2018/021489
Publication Date:
January 24, 2019
Filing Date:
June 05, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02M61/10; F02M21/02; F02M51/06; F02M61/16
Foreign References:
| JP2015218664A | 2015-12-07 | |||
| JP2011163242A | 2011-08-25 | |||
| JP2016065539A | 2016-04-28 | |||
| JP2014080964A | 2014-05-08 | |||
| JP2013100756A | 2013-05-23 | |||
| JPH09273451A | 1997-10-21 |
Attorney, Agent or Firm:
KAMATA, Toru et al. (JP)
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