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Patent Searching and Data


Title:
HYDRAULIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/178961
Kind Code:
A1
Abstract:
This hydraulic system comprises: a first proportional solenoid valve and a second proportional solenoid valve that, the larger the operation signal output from a first operation device and a second operation device, output a higher secondary pressure; a third proportional solenoid valve that, when the first proportional solenoid valve is not functioning normally, outputs a higher secondary pressure the higher the operation amount of the first operation device, and that, when the second proportional solenoid valve is not functioning normally, outputs a higher secondary pressure the higher the operation amount of the second operation device; a first high pressure selection valve that selects and guides to a first regulator for a first pump, the highest amongst the secondary pressure output from the first proportional solenoid valve and the secondary pressure output from the third proportional solenoid valve; and a second high pressure selection valve that selects and guides to a second regulator for a second pump, the highest amongst the secondary pressure output from the second proportional solenoid valve and the secondary pressure output from the third proportional solenoid valve

Inventors:
KONDO, Akihiro
Application Number:
IB2018/053503
Publication Date:
October 04, 2018
Filing Date:
May 18, 2018
Export Citation:
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Assignee:
KAWASAKI JUKOGYO KABUSHIKI KAISHA (1-1 Higashikawasaki-cho 3-chome, Chuo-Ku Kobe-Shi, Hyogo 70, 〒6508670, JP)
International Classes:
F15B20/00; E02F9/22; F15B11/02; F15B11/042; F15B11/17
Domestic Patent References:
WO2016136229A12016-09-01
Foreign References:
JP2013185401A2013-09-19
JP2005265062A2005-09-29
JP2011256814A2011-12-22
JP2016114129A2016-06-23
JP2000282515A2000-10-10
JP2010048396A2010-03-04
JP2004076910A2004-03-11
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (3rd Fl, Bo-eki Bldg. 123-1, Higashimachi,Chuo-K, Kobe-Shi Hyogo 31, 〒6500031, JP)
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