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. 29, 2016

Filed:

Dec. 26, 2012
Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Jin Young Hwang, Busan, KR;

Taehwan Wi, Bucheon-si, KR;

Se Hwan Jo, Bucheon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 23/00 (2006.01); F04B 23/08 (2006.01); F04B 23/12 (2006.01); F16H 57/04 (2010.01); F04C 11/00 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
F16H 57/04 (2013.01); F04C 11/001 (2013.01); F04C 23/001 (2013.01); F16H 57/0441 (2013.01); F16H 57/0446 (2013.01); F16H 61/0025 (2013.01); F04B 23/08 (2013.01); F04B 23/12 (2013.01); F16H 2061/0037 (2013.01); Y10T 137/86139 (2015.04);
Abstract

A hydraulic pressure supply system of an automatic transmission may generate low hydraulic pressure and high hydraulic pressure using oil stored in an oil pan and may supply the low hydraulic pressure and the high hydraulic pressure respectively to a low pressure portion and a high pressure portion. In the hydraulic pressure supply system, a low-pressure hydraulic pump pumping the oil stored in the oil pan and generating the low hydraulic pressure and a high-pressure hydraulic pump changing the low hydraulic pressure supplied from the low-pressure hydraulic pump into the high hydraulic pressure and supplying the high hydraulic pressure to the high pressure portion may be integrated as one hydraulic pump.


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