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.:
Date of Patent:
Jan. 26, 2016
Filed:
Jan. 24, 2014
Applicant:
Parker-hannifin Corporation, Cleveland, OH (US);
Inventors:
Anthony Tesoriero, Ann Arbor, MI (US);
Carl Block, Columbiaville, MI (US);
Assignee:
Parker-Hannifin Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 21/04 (2006.01); B01D 19/00 (2006.01); F16H 61/4174 (2010.01); F15B 3/00 (2006.01); F15B 21/14 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
F15B 21/044 (2013.01); B01D 19/0036 (2013.01); B01D 19/0063 (2013.01); F16H 61/4174 (2013.01); F15B 3/00 (2013.01); F15B 21/14 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/212 (2013.01); F15B 2211/625 (2013.01); F16H 2061/004 (2013.01); Y10T 137/0318 (2015.04); Y10T 137/85978 (2015.04);
Abstract
A de-aeration hydraulic circuit having application in a hydromechanical transmissions utilizes a hydraulic fluid reservoir to de-aerate hydraulic fluid. The circuit includes a high pressure side and a low pressure side having a bleed down valve therebetween, the opening of the bleed down valve causing fluid to flow from the high pressure side to the low pressure side and through a valve to the hydraulic fluid reservoir where the pressure drop causes gas that is entrained in the fluid to bubble out and vent from the atmospheric reservoir.