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:
Nov. 21, 2017
Filed:
Sep. 05, 2014
Applicant:
Kanzaki Kokyukoki Mfg. Co., Ltd., Amagasaki-shi, JP;
Inventors:
Tomoyuki Tsuji, Amagasaki, JP;
Tooru Oota, Amagasaki, JP;
Assignee:
KANZAKI KOKYUKOKI MFG. CO., LTD., Hyogo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04B 53/18 (2006.01); F16J 1/08 (2006.01); F16J 1/09 (2006.01); F01B 3/00 (2006.01); F01B 3/02 (2006.01); B60T 1/06 (2006.01); F04B 1/20 (2006.01);
U.S. Cl.
CPC ...
F16J 1/08 (2013.01); B60T 1/062 (2013.01); F01B 3/0032 (2013.01); F01B 3/02 (2013.01); F04B 1/20 (2013.01); F04B 53/18 (2013.01); F16J 1/09 (2013.01);
Abstract
A housing of an axial piston device is provided with a drain port for discharging the retained oil to the outside and a supply oil passage for guiding lubricating oil, which has been supplied from an oil source, toward a first hydraulic axial piston member. The drain port is arranged so as to bring about such a retained-oil level that a second hydraulic axial piston member, which is disposed below the first hydraulic axial piston member, is partially or entirely immersed in the retained oil while the first hydraulic axial piston member is not immersed in the retained oil.