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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.

Patent No.:

US 10837503 B1

PDFFull Text
Date of Patent:
Nov. 17, 2020

Filed:

Nov. 22, 2016

Hydraulic-oil control device

Applicant:

Isuzu Motors Limited, Tokyo, JP;

Inventor:

Tomoaki Shimozawa, Fujisawa, JP;

Assignee:

ISUZU MOTORS LIMITED, Tokyo, JP;

Attorney:

Procopio, Cory, Hargreaves & Savitch LLP

Primary Examiner:

Ernesto A Suarez

Assistant Examiner:

Lillian T Nguyen

Int. Cl.
CPC ...
F16D 48/06 (2006.01); F16D 13/74 (2006.01); F16H 59/68 (2006.01); F16D 48/02 (2006.01); F16D 21/06 (2006.01); F16D 25/10 (2006.01); F16D 13/72 (2006.01); F16D 25/12 (2006.01); F16D 25/0638 (2006.01);
U.S. Cl.
CPC ...
F16D 48/062 (2013.01); F16D 13/74 (2013.01); F16D 21/06 (2013.01); F16D 25/10 (2013.01); F16D 48/02 (2013.01); F16H 59/68 (2013.01); F16D 13/72 (2013.01); F16D 25/0638 (2013.01); F16D 25/12 (2013.01); F16D 2021/0661 (2013.01); F16D 2048/029 (2013.01); F16D 2500/1027 (2013.01); F16D 2500/1045 (2013.01); F16D 2500/10412 (2013.01); F16D 2500/30405 (2013.01); F16D 2500/70406 (2013.01);
Abstract

Hydraulic-oil control devices are provided herein that perform hydraulic-oil supply control in a dual clutch device having a first clutch and a second clutch. A hydraulic-oil control device according to embodiments herein includes a first linear solenoid valve that adjusts hydraulic oil having a line pressure for a first hydraulic chamber and supplies the hydraulic oil thereto, a second linear solenoid valve that adjusts hydraulic oil having a line pressure for a second hydraulic chamber and supplies the hydraulic oil thereto, a shuttle valve that outputs the hydraulic oil having a higher pressure between the pressure of the hydraulic oil in the first hydraulic chamber and the pressure of the hydraulic oil in the second hydraulic chamber, and a switch valve that adjusts the amount of hydraulic oil supplied to a first space and a second space, according to the pressure of the hydraulic oil output from the shuttle valve.

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