Automatic transmission

Details Automatic transmission Automatic transmission

2011-01-04

2011-01-04

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

C192S048619

Reexamination Certificate

active

07862461

ABSTRACT:
An automatic transmission that includes one clutch that includes a clutch drum; a piston that forms a hydraulic oil chamber using a part of the clutch drum as a cylinder; a plurality of friction plates that engage with the clutch drum; and a cancel oil chamber that is provided on a rear side of the piston and that cancels a centrifugal oil pressure that acts on the hydraulic oil chamber. Oil is supplied to the cancel oil chamber from a boss portion formed in the clutch drum on a radially inner side, and the oil is discharged from discharge holes formed in the boss portion to an outside of a hydraulic oil chamber side of the clutch drum.

REFERENCES:
patent: 4732253 (1988-03-01), Hiramatsu et al.
patent: 5887690 (1999-03-01), Haupt
patent: 6454074 (2002-09-01), Kundermann et al.
patent: 7001298 (2006-02-01), Biermann et al.
patent: 7416069 (2008-08-01), Tiesler
patent: 2007/0060438 (2007-03-01), Fukuyama et al.
patent: 2007/0184932 (2007-08-01), Tabata et al.
patent: 2008/0202884 (2008-08-01), Nishida et al.
patent: 2008/0207384 (2008-08-01), Nishida et al.
patent: 2008/0207386 (2008-08-01), Nishida et al.
patent: 2008/0220928 (2008-09-01), Nishida et al.
patent: 2009/0017954 (2009-01-01), Nishida et al.
patent: 2009/0029820 (2009-01-01), Nishida et al.
patent: A-07-269665 (1995-10-01), None
patent: A-2001-50301 (2001-02-01), None
patent: A-2006-342845 (2006-12-01), None
patent: A-2007-032624 (2007-02-01), None
patent: WO 2005/026579 (2005-03-01), None

Affiliated with

Also associated with

Rating

Automatic transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2701413