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:
Feb. 26, 2008
Filed:
Nov. 30, 2005
Shigenori Sakikawa, Amagasaki, JP;
Tomoyuki Tsuji, Amagasaki, JP;
Shingo Araki, Amagasaki, JP;
Kanzaki Kokyukoki Mfg., Co., Ltd., Hyogo, JP;
Abstract
There is provided a pump unit including a housing, a first and a second pump shafts, a first and a second hydraulic pump main bodies, a first and a second trunnion type movable swash pates, and a first and a second transmission gears. The housing has an inlet port for introducing oil from the outside into its pump accommodating chamber, an oil passage for communicating between the pump accommodating chamber and its gear accommodating chamber, and a discharge port for taking out oil from the gear accommodating chamber to the outside. The pump accommodating chamber includes a supporting wall that supports each base end of the swash plates so that each operational end of the swash plates is directed to the opposite directions to each other. The inlet port and the oil passage are respectively provided at one side and the other side of the pump accommodating chamber with the supporting wall as a reference.