The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 11, 2018

Filed:

Jan. 27, 2015
Applicant:

Kyb Corporation, Tokyo, JP;

Inventors:

Nobuyoshi Yoshida, Tokyo, JP;

Ikuo Inagaki, Saitama, JP;

Assignee:

KYB Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); F15B 11/17 (2006.01); F15B 11/00 (2006.01); F15B 11/16 (2006.01); F15B 13/02 (2006.01); F15B 13/06 (2006.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2225 (2013.01); E02F 9/2232 (2013.01); E02F 9/2235 (2013.01); E02F 9/2239 (2013.01); E02F 9/2267 (2013.01); E02F 9/2282 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 11/00 (2013.01); F15B 11/16 (2013.01); F15B 11/17 (2013.01); F15B 13/022 (2013.01); F15B 13/06 (2013.01); E02F 3/32 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/30595 (2013.01); F15B 2211/327 (2013.01); F15B 2211/329 (2013.01); F15B 2211/36 (2013.01); F15B 2211/41554 (2013.01); F15B 2211/426 (2013.01); F15B 2211/428 (2013.01); F15B 2211/45 (2013.01); F15B 2211/6652 (2013.01); F15B 2211/71 (2013.01); F15B 2211/7142 (2013.01);
Abstract

A working machine control system includes: a split-flow fluid pressure pump configured to discharge a working fluid from a first discharge port and a second discharge port; a communication switching valve configured to be switched by a switch signal when any one of a first operation valve and a second operation valve is switched so as to allow a first neutral passage and a second neutral passage to communicate with each other; a neutral cut valve configured to be switched by the switch signal so as to block communication between a tank and one of the first neutral passage and the second neutral passage for the first operation valve or the second operation valve that is not switched; and a discharge flow rate adjusting device configured to adjust the fluid pressure pump so as to reduce a discharge flow rate thereof when the switch signal is inputted from any one of the first operation valve and the second operation valve.


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