Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Patent
1991-07-09
1993-04-13
Wright, Dirk
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
475 83, F16H 3916
Patent
active
052016927
ABSTRACT:
A transaxle with a hydrostatic transmission which is compact, reliable and economical to manufacture, including a novel means for hydraulically reducing the speed of the input to the transaxle; an improved differential which is stronger and less complicated than prior art designs; a longer lasting, more effective means of preventing oil leakage from the axle shafts in the transaxle housing; a center section for the hydrostatic transmission supporting the output drive shaft, eliminating the need for additional bearing support; an improved means for hydraulically bypassing the hydrostatic transmission and a unique check valve arrangement for maintaining oil pressure within the hydrostatic transmission. The hydrostatic transmission also includes a pump and a motor whose orientation to one another may be varied according to the space requirements dictated by the size and configuration of the vehicle through the use of a helical gear.
REFERENCES:
patent: 3279172 (1966-10-01), Kudo et al.
patent: 3424032 (1969-01-01), Ritter
patent: 3751924 (1973-08-01), Brown et al.
patent: 4145883 (1979-03-01), Forster
patent: 4856264 (1989-08-01), Nishimura et al.
patent: 4856368 (1989-08-01), Fujisaki et al.
patent: 4862767 (1989-09-01), Hauser
patent: 4870820 (1989-10-01), Nemoto
patent: 4891943 (1990-01-01), Okada
patent: 4893524 (1990-01-01), Ohashi et al.
patent: 4899541 (1990-02-01), Okada et al.
patent: 4903545 (1990-02-01), Louis et al.
patent: 4914907 (1990-04-01), Okada
patent: 4922787 (1990-05-01), Fujisaki et al.
patent: 4932209 (1990-06-01), Okada
patent: 4942780 (1990-07-01), Fujisaki et al.
patent: 4953426 (1990-09-01), Johnson
patent: 4979583 (1990-12-01), Thoma et al.
"Kanzaki Transaxle" advertisement.
Eaton "Hydrostatic Transaxle Series 1150" Sep. 1984.
"TRW Ross Gear Torqdrive Axle".
Hauser Ray M.
Johnson Alan W.
Browne Robert E.
Hydro-Gear Limited Partnership
McDonough Thomas C.
Wright Dirk
LandOfFree
Rider transaxle having hydrostatic 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 Rider transaxle having hydrostatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rider transaxle having hydrostatic transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1151118