Title:
高圧ポンプ
Document Type and Number:
Japanese Patent JP6747482
Kind Code:
B2
Abstract:
A high-pressure pump includes a pressurizing chamber forming portion, a discharge passage forming portion, a discharge seat member, an intermediate member, a relief seat member, a discharge valve, and a relief valve. The intermediate member includes a first passage that passes through the intermediate member between one surface facing a pressurizing chamber and the other surface facing away from the pressurizing chamber. The relief valve seat includes a second passage that passes through the relief seat member between the one surface facing the pressurizing chamber and the other surface facing away from the pressurizing chamber. At least one of the intermediate member and the relief seat member includes an annular recess that fluidly connects the first passage and the second passage. The annular recess is recessed from a surface of the at least one of the intermediate member and the relief seat member facing the other.
Inventors:
Shinichiro Koshimoto
Kazuki Takaki
Takayuki Makihara
Kazuki Takaki
Takayuki Makihara
Application Number:
JP2018176427A
Publication Date:
August 26, 2020
Filing Date:
September 20, 2018
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M59/46; F02M69/54; F16K11/22; F16K17/04
Domestic Patent References:
| JP4237868A | ||||
| JP5865966A | ||||
| JP60247049A |
Foreign References:
| US20140305410 |
Attorney, Agent or Firm:
Masaki Hattori