Title:
FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2020/246385
Kind Code:
A1
Abstract:
A fuel injection valve (10) comprises: a housing (100) in which an injection hole (511) for injecting fuel is formed at one end in the longitudinal direction; a needle (200) that switches the opening and closing of the injection hole by moving along the longitudinal direction inside the housing; a fixed core (400) that is at least partly formed of a magnetic material and is fixed inside the housing; a movable core (300) that is at least partly formed of a magnetic material and is arranged in a state of being movable with the needle along the longitudinal direction inside the housing; and a coil (600) that generates a magnetic attraction force between the fixed core and the movable core. A damper chamber (250) for attenuating the operating speed of the needle is formed between the needle and the housing.
Inventors:
MAEGAWA HITOSHI (JP)
FUJINO TOMOKI (JP)
FUJINO TOMOKI (JP)
Application Number:
PCT/JP2020/021340
Publication Date:
December 10, 2020
Filing Date:
May 29, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02M51/06; F02M21/02; F02M61/04; F02M61/10
Domestic Patent References:
| WO2017022163A1 | 2017-02-09 |
Foreign References:
| JP2016505746A | 2016-02-25 | |||
| JP2015021470A | 2015-02-02 |
Attorney, Agent or Firm:
KAMATA, Toru et al. (JP)
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