HIGH-PRESSURE PUMP

WIPO Patent Application WO/2019/065992

A1

An intermediate member (81) is provided on the opposite side of a discharge seat member (71) from a pressurizing chamber (200) and has a first flow passage (83) for providing communication between the surface of the intermediate member (81), which faces the pressuring chamber (200), and the surface of the intermediate member (81), which faces away from the pressurizing chamber (200). A relief seat member (85) is provided on the opposite side of the intermediate member (81) from the pressurizing chamber (200), the relief seat member (85) having a relief hole (87) for providing communication between the surface of the relief seat member (85), which faces the pressurizing chamber (200), and the surface of the relief seat member (85), which faces away from the pressurizing chamber (200), the relief seat member (85) also having a second flow passage (89) for providing communication between the surface of the relief seat member (85), which faces the pressurizing chamber (200), and the surface of the relief seat member (85), which faces away from the pressurizing chamber (200). The intermediate member (81) has an annular groove (800) which is formed annularly in the intermediate member (81) at the interface between the intermediate member (81) and the relief seat member (85), and which connects the first flow passage (83) and the second flow passage (89).

KOSHIMOTO SHINICHIRO (JP)
SUZUKI YOSHIHITO (JP)
MAKIHARA TAKAYUKI (JP)

PCT/JP2018/036317

April 04, 2019

September 28, 2018

Click for automatic bibliography generation  

DENSO CORP (JP)

F02M59/46; F02M69/54; F16K11/22; F16K17/04

JPH04237868A	1992-08-26
JPS5865966A	1983-04-19
JPS60247049A	1985-12-06
US20140305410A1	2014-10-16

HATTORI Masaki (JP)

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