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. 06, 2016

Filed:

Nov. 15, 2013
Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Se Hwan Jo, Bucheon-si, KR;

Jin Young Hwang, Busan, KR;

Taehwan Wi, Bucheon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 61/4017 (2010.01); F04B 23/04 (2006.01); F04B 49/00 (2006.01); F04B 49/02 (2006.01); F04B 49/035 (2006.01); F04B 49/08 (2006.01); F16H 61/00 (2006.01); F16H 61/02 (2006.01);
U.S. Cl.
CPC ...
F04B 23/04 (2013.01); F04B 49/002 (2013.01); F04B 49/022 (2013.01); F04B 49/035 (2013.01); F04B 49/08 (2013.01); F16H 61/0021 (2013.01); F16H 61/0267 (2013.01); F04B 2205/06 (2013.01);
Abstract

An automatic-transmission hydraulic pressure supply system includes a low-pressure hydraulic pump supplying low hydraulic pressure to a first low-pressure line, a low-pressure regulator valve recirculating through a first recirculation line a portion of the hydraulic pressure supplied through the first low-pressure line to regulate the hydraulic pressure of the first low-pressure line, and supplying the regulated hydraulic pressure to a low pressure portion through a second low-pressure line, a high-pressure hydraulic pump receiving a portion of the hydraulic pressure of the first low-pressure line, increasing and supplying the increased hydraulic pressure to a high pressure portion through a high-pressure line, and a high-pressure regulator valve recirculating a portion of the hydraulic pressure supplied through the high-pressure line through second and/or third recirculation lines, and supplying the regulated hydraulic pressure to the high pressure portion.


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