FUEL PRESSURE REGULATOR AND FUEL SUPPLY MODULE

WIPO Patent Application WO/2017/134997

A1

A fuel pressure regulator provided with, inside a casing, a high-pressure chamber into which high-pressure fuel can be introduced, a fuel discharge port for discharging the high-pressure fuel introduced into the high-pressure chamber, a low-pressure chamber made to be in communication with the interior of a fuel tank, and a pressure regulation valve capable of regulating the pressure of the fuel in the high-pressure chamber, wherein the pressure regulation valve (V) is provided with at least a valve housing (Vh) fluid-tightly fitted in a receiving hole (M) provided to the casing (C) so that the high-pressure chamber (H) and the low-pressure chamber (L) are in communication with each other, and a valve element (Vv) accommodated inside the valve housing (Vh) and capable of opening/blocking the path between the high-pressure chamber (H) and the low-pressure chamber (L), and the low-pressure chamber (L) includes at least an annular space (Lo) extending to the periphery of the high-pressure chamber (H) and the receiving hole (M) so as to encircle the high-pressure chamber (H) and the receiving hole (M). The peripheral wall of the high-pressure chamber in the casing is thereby protected from impact by loose rocks and the like, and operating noises of the pressure regulation valve and other components are not likely to leak to the exterior.

TANAKA SATOSHI (JP)

PCT/JP2017/000757

August 10, 2017

January 12, 2017

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KEIHIN CORP (JP)

F02M37/14; F02M37/00; F02M37/08

JP2015094346A	2015-05-18
JP2001280211A	2001-10-10
JP2015190426A	2015-11-02
JP2001107818A	2001-04-17
JPS6125981A	1986-02-05

OCHIAI & CO. (JP)

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