Title:
SOLENOID MECHANISM AND HIGH-PRESSURE FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2020/100398
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce occurrence of erosion due to collapse of cavitation caused in a fixed core in a solenoid mechanism. For this purpose, in the solenoid mechanism provided with a fixed core 39, a movable core 36 sucked by the fixed core 39, and a solenoid 43 that generates a magnetic absorption force between the fixed core 39 and the movable core 36 by energization, the fixed core 29 is provided with a recessed part 39a where a fluid enters and leaves with movement of the movable core 26, and the recessed part 39a is provided with an elastic member having a Poisson's ratio of 0.45 or more and 0.55 or less.
Inventors:
TAKAHASHI YUUKI (JP)
KAWASAKI KENJI (JP)
TOKUO KENICHIRO (JP)
KAWASAKI KENJI (JP)
TOKUO KENICHIRO (JP)
Application Number:
PCT/JP2019/035831
Publication Date:
May 22, 2020
Filing Date:
September 12, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02M51/00; F02M51/04; F02M59/44; F02M59/46; F16K31/06
Foreign References:
| JPS56138580A | 1981-10-29 | |||
| JPH1182800A | 1999-03-26 | |||
| JP2018100776A | 2018-06-28 | |||
| JP2014167264A | 2014-09-11 | |||
| JP2012136994A | 2012-07-19 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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