Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroyuki Nishiyama0
Shingo Hirotsu0
Tomoyuki Fujita0
Yoshinobu Yasue0
Katsutoshi Amano0
Masamichi Sugihara0
Date of Patent
January 1, 2008
0Patent Application Number
112538190
Date Filed
October 20, 2005
0Patent Primary Examiner
Patent abstract
In a vane pump disposed inside a transmission case of a continuously variable transmission, a pump case (20), a pump drive shaft (8) rotatably supported by a shaft bore (9) of the pump case (20) to rotate a rotor (5), and a drain port (17), one end thereof being opened to a shaft bore (9) of the pump drive shaft (8) and the other end being opened to an outside of the pump case (20) are provided. A leaked oil flown via the drain port (17) from a pump discharge side is discharged to an outside of the pump case (20).
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