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:
Apr. 19, 2016

Filed:

Dec. 12, 2012
Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Taehwan Wi, Bucheon-si, KR;

Jin Young Hwang, Busan, KR;

Se Hwan Jo, Bucheon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 11/00 (2006.01); F04B 49/00 (2006.01); F16H 61/00 (2006.01); F16H 61/02 (2006.01); F04B 23/04 (2006.01);
U.S. Cl.
CPC ...
F04B 49/002 (2013.01); F16H 61/0021 (2013.01); F16H 61/0025 (2013.01); F16H 61/0031 (2013.01); F16H 61/0206 (2013.01); F04B 23/04 (2013.01); F15B 2211/20592 (2013.01); Y10T 137/85978 (2015.04);
Abstract

A hydraulic pressure supply system may include a low-pressure hydraulic pump receiving the oil stored in the oil pan and generating the low hydraulic pressure, a low-pressure regulator valve controlling the low hydraulic pressure of the first low-pressure line, a reducing valve fluid-connected to the low-pressure regulator valve and supplying a hydraulic pressure to the low pressure portion, a high-pressure hydraulic pump increasing the low hydraulic pressure supplied from the low-pressure hydraulic pump, a switch valve disposed between the first low-pressure line and the high-pressure line, and selectively connecting the first low-pressure line and the high-pressure line, a high-pressure regulator valve controlling the increased hydraulic pressure supplied from the high-pressure hydraulic pump and the low hydraulic pressure selectively supplied from the low-pressure hydraulic pump through the switch valve, and supplying the stable high hydraulic pressure to the high pressure portion.


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