Automatic transmission with lubricating structure

Details Automatic transmission with lubricating structure Automatic transmission with lubricating structure

2006-11-16

2009-10-20

Pang, Roger (Department: 3655)

Planetary gear transmission systems or components

With lubricaton

C184S006120, C192S113300

Reexamination Certificate

active

07604558

ABSTRACT:
A piston operating a first clutch is disposed between a first drum accommodating the first clutch and a second drum accommodating a second clutch, and an oil reservoir storing lubricating oil that has lubricated the first clutch is provided on an inner cylindrical surface of a skirt portion of the piston. Barriers having different inner diameters are provided to the axial front and rear of the oil reservoir. When the second clutch is disengaged such that the amount of lubricating oil supplied to the oil reservoir increases, the lubricating oil overflows the barrier having the smaller inner diameter, and thus flows to the second clutch.

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patent: 6499578 (2002-12-01), Kundermann et al.
patent: 6547686 (2003-04-01), Thorenz
patent: 6662904 (2003-12-01), Omote et al.
patent: 7232022 (2007-06-01), Aoki
patent: 2-093152 (1990-04-01), None
patent: 2-129457 (1990-05-01), None
patent: 5-039866 (1993-02-01), None

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