Title:
ELECTROMAGNETIC SOLENOID AND FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2017/159198
Kind Code:
A1
Abstract:
Provided is an electromagnetic solenoid comprising: a movable iron core 27a having an end surface 27ab formed between the inner peripheral surface 27ah of the movable iron core 27a and the outer peripheral surface 27ae thereof; and a stationary iron core 25 having an end surface 25b formed between the inner peripheral surface 25h of the stationary iron core 25 and the outer peripheral surface 25f thereof and facing the end surface 27ab of the movable iron core 27a. The end surface 27ab of the movable iron core 27a, and/or the end surface 25b of the stationary iron core 25 has an annularly shaped protrusion 27ak. The protrusion 27ak is provided at a position offset to the inner peripheral side in the radial direction of the end surface 27ab. The distance Wi between the top 27akp of the protrusion 27ak and the inner peripheral edge 27ao thereof is less than the distance Wo between the top 27akp and the outer peripheral edge 27an.
Inventors:
YAMAZAKI AKIHIRO (JP)
SAITO TAKAHIRO (JP)
KOBAYASHI NOBUAKI (JP)
MIYAMOTO AKIYASU (JP)
YASUKAWA YOSHIHITO (JP)
SAITO TAKAHIRO (JP)
KOBAYASHI NOBUAKI (JP)
MIYAMOTO AKIYASU (JP)
YASUKAWA YOSHIHITO (JP)
Application Number:
PCT/JP2017/005643
Publication Date:
September 21, 2017
Filing Date:
February 16, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H01F7/16; F02M51/06; F16K31/06
Domestic Patent References:
| WO2015136974A1 | 2015-09-17 |
Foreign References:
| JP2011089432A | 2011-05-06 | |||
| JP2007218205A | 2007-08-30 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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