FLUID PRESSURE CONTROL DEVICE

Title:

FLUID PRESSURE CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/090586

Kind Code:

A1

Abstract:

A fluid pressure control device (100) is provided with a first pump passage (10) that guides hydraulic fluid discharged from a first pump (P1), a second pump passage (11) that guides hydraulic fluid discharged from a second pump (P2), a main passage (12) to which the hydraulic fluid discharged from the first pump (P1) or the second pump (P2) is selectively guided and which communicates with a tank (T), a first control valve (20) that is provided to the first pump passage (10) and that controls the flow of hydraulic fluid supplied to and discharged from a first hydraulic cylinder (1), a second control valve (30) that is provided to the main passage (12) and that controls the flow of hydraulic fluid supplied to and discharged from a second hydraulic cylinder (2), and a switching valve (40) that is provided to the main passage (12) and that selectively switches the passage communicating with the main passage (12) between the first pump passage (10) and the second pump passage (11).

Inventors:

OGAYA YOSHIKAZU (JP)
YOSHIDA NOBUYOSHI (JP)
TANAKA YUTA (JP)

Application Number:

PCT/JP2019/041543

Publication Date:

May 07, 2020

Filing Date:

October 23, 2019

Export Citation:

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Assignee:

KYB CORP (JP)

International Classes:

F15B11/17; F15B11/00

Foreign References:

JP2009257440A	2009-11-05
JP2007147074A	2007-06-14
JP2012241803A	2012-12-10

Other References: