Title:
ELECTROMAGNETIC SUCTION VALVE AND HIGH-PRESSURE FUEL SUPPLY PUMP
Document Type and Number:
WIPO Patent Application WO/2021/054006
Kind Code:
A1
Abstract:
Provided is an electromagnetic suction valve that enables dead volume in a pressurization chamber to be reduced. This electromagnetic suction valve is provided with a valve member, a seat member, and a valve biasing member. The valve member has a rod part and a valve part provided on one end portion of the rod part. The seat member has a guide part for guiding the outer periphery of the rod part and a seating surface for seating the valve part. The valve biasing member biases the rod part in a valve-closing direction, which is the direction in which the valve part approaches the seating surface. In addition, the biasing member is arranged farther in the valve-closing direction than the guide part. The distance from the guide part center, which is the center of the guide part in a direction parallel to the valve-closing direction, to the other end portion of the rod part is shorter than the distance from the guide part center to the distal end of the valve part.
Inventors:
KAWANO TATSUO (JP)
YAMADA HIROYUKI (JP)
USUI SATOSHI (JP)
OGURA KIYOTAKA (JP)
TAMURA SHINGO (JP)
YAMADA HIROYUKI (JP)
USUI SATOSHI (JP)
OGURA KIYOTAKA (JP)
TAMURA SHINGO (JP)
Application Number:
PCT/JP2020/030848
Publication Date:
March 25, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16K31/06; F02M59/36; F02M59/46; F16K1/32
Foreign References:
| JP2013194616A | 2013-09-30 | |||
| JP2010156259A | 2010-07-15 | |||
| JP2019143562A | 2019-08-29 | |||
| JP2019094875A | 2019-06-20 |
Attorney, Agent or Firm:
TODA Yuji (JP)
Download PDF: