Vane pump for continuously variable transmission

Details Vane pump for continuously variable transmission Vane pump for continuously variable transmission

2008-01-01

2008-01-01

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Positively actuated vane

C418S082000, C418S098000, C418S133000, C418S268000

Reexamination Certificate

active

11253819

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).

REFERENCES:
patent: 3060877 (1962-10-01), Ketterer
patent: 3361076 (1968-01-01), Davis
patent: 4247263 (1981-01-01), Pech et al.
patent: 1 085 241 (2001-03-01), None
patent: 1 182 350 (2002-02-01), None
patent: 1 085 241 (2003-01-01), None
patent: 52000695 3 (1977-01-01), None
patent: 08-291793 (1996-11-01), None
patent: 09042168 (1997-02-01), None
patent: WO 2004/018871 (2004-03-01), None

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