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:
Mar. 22, 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 ...
F01M 1/02 (2006.01); F04B 23/04 (2006.01); F01M 1/16 (2006.01); F01M 1/12 (2006.01);
U.S. Cl.
CPC ...
F01M 1/02 (2013.01); F01M 1/16 (2013.01); F04B 23/04 (2013.01); F01M 2001/123 (2013.01); Y10T 137/86139 (2015.04);
Abstract

A hydraulic pressure supply may include a low pressure portion, a high pressure portion, a low-pressure hydraulic pump receiving the oil stored in the oil pan and discharging the low hydraulic pressure to a first low-pressure line fluid-connected to the low-pressure hydraulic pump, a switch valve fluid-connected to the first low-pressure line, and selectively supplying the low hydraulic pressure to the low pressure portion or the high pressure portion, a low-pressure regulator valve connected to the switch valve, a high-pressure hydraulic pump fluid-connected to the low-pressure hydraulic pump through the first low-pressure line, a high-pressure regulator valve fluid-connected to the high pressure line and controlling the high hydraulic pressure supplied from the high-pressure hydraulic pump and the low hydraulic pressure supplied from the low-pressure hydraulic pump to be stable high hydraulic pressure, a second input line connecting the oil pan to the first low-pressure line.


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