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:
Apr. 20, 2021
Filed:
Aug. 08, 2018
Applicant:
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Inventors:
Assignee:
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 21/044 (2019.01); F15B 1/26 (2006.01); F16H 61/4174 (2010.01);
U.S. Cl.
CPC ...
F15B 21/044 (2013.01); F15B 1/265 (2013.01); F16H 61/4174 (2013.01);
Abstract
A hydraulic drive unit includes: a pump; a pair of supply-discharge lines; a valve block; a sealed tank; a suction line that leads hydraulic oil in the sealed tank to the pump; a connecting line that connects an air vent port of the pump to the suction line; and a gas-liquid separator that separates air and the hydraulic oil flowing through the connecting line from each other. The pump is disposed upward of the valve block and the sealed tank in a vertical direction.