Title:
HIGH-PRESSURE PUMP
Document Type and Number:
WIPO Patent Application WO/2018/164023
Kind Code:
A1
Abstract:
A discharge valve (70) has: a valve body (71) which has an outer edge in sliding contact with the inner peripheral wall of a cylinder section (41), is guided for axial movement, and is provided so as to be capable of coming into contact with a discharge valve seat (44); and a first passage (701) which is formed in the valve body (71) at a position between the valve body (71) and the inner peripheral wall of the cylinder section (41) and which is capable of allowing fuel on the discharge valve seat (44) side to flow in the direction away from the discharge valve seat (44). A stopper (80) has: a stopper body (81) formed from a separate member from the cylinder section (41) and is provided on the opposite side of the discharge valve (70) from the discharge valve seat (44); a movement restriction surface (800) capable of restricting the movement of the discharge valve (70) in the direction away from the discharge valve seat (44); and a second passage (802) formed in the stopper body (81) and capable of allowing fuel on the discharge valve (70) side to flow in the direction away from the discharge valve (70).
Inventors:
NAKAOKA MASAHARU (JP)
Application Number:
PCT/JP2018/008213
Publication Date:
September 13, 2018
Filing Date:
March 05, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02M59/36; F02M59/34
Domestic Patent References:
| WO2015163245A1 | 2015-10-29 |
Foreign References:
| JP2015536411A | 2015-12-21 | |||
| JP2012229668A | 2012-11-22 | |||
| JP2012149595A | 2012-08-09 |
Attorney, Agent or Firm:
HATTORI Masaki (JP)
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