Title:
FLUID PRESSURE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/207951
Kind Code:
A1
Abstract:
Provided is a fluid pressure control device including a first switching valve (51) provided downstream of a first travel control valve (11) in a first main passage (41) and having an opening position (51A) and a priority position (51B), a second switching valve (52) provided downstream of a second travel control valve (21) in a second main passage (42) and having an opening position (52A) and a priority position (52B), and a joining passage (45) that connects the downstream of the first switching valve (51) in the first main passage (41) and the downstream of the second switching valve (52) in the second main passage (42), wherein the first switching valve (51) is in the first priority position (51B) when first work control valves (12 to 14) and second work control valves (22 to 24) are not operated but the first travel control valve (11) is operated, and the second switching valve (52) is in the first priority position (52B) when the first work control valves (12 to 14) and the second work control valves (22 to 24) are not operated but the second travel control valve (21) is operated.
Inventors:
MATSUZAKI KEIICHI (JP)
FUKUDA SYUNSUKE (JP)
FUKUDA SYUNSUKE (JP)
Application Number:
PCT/JP2019/007657
Publication Date:
October 31, 2019
Filing Date:
February 27, 2019
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
E02F9/22; F15B11/02; F15B11/17
Foreign References:
| JPS611739A | 1986-01-07 | |||
| JP2010101095A | 2010-05-06 | |||
| JP2006083696A | 2006-03-30 | |||
| JP2018087396A | 2018-06-07 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
Download PDF:
Previous Patent: CENTRIFUGAL COMPRESSOR
Next Patent: VIBRATION NOISE RESPONSE PLAN RECOMMENDATION SYSTEM
Next Patent: VIBRATION NOISE RESPONSE PLAN RECOMMENDATION SYSTEM