Hydrostatic transaxle

Details Hydrostatic transaxle Hydrostatic transaxle

2011-04-12

2011-04-12

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

Reexamination Certificate

active

07921643

ABSTRACT:
A hydrostatic transaxle (IHT) comprises a hydrostatic transmission (HST), an axle, a deceleration drive train, a first housing member, and a second housing member. The HST includes first and second hydraulic displacement units fluidly connected to each other. The first hydraulic displacement unit has a pump shaft for receiving power from a prime mover. The second hydraulic displacement has a motor shaft. The deceleration drive train is interposed between the motor shaft and the axle. The first housing member supports the HST and the deceleration drive train, and has an opening through which the HST and the deceleration drive train are installed into the first housing member. The second housing member is joined to the first housing member so as to serve as a lid for covering the opening of the first housing member after the HST and the deceleration drive train are installed in the first housing member so as to be supported by the first housing member.

REFERENCES:
patent: 5156576 (1992-10-01), Johnson
patent: 5447028 (1995-09-01), Azuma et al.
patent: 6390227 (2002-05-01), Abend et al.
patent: 6397594 (2002-06-01), Hauser et al.
patent: 6457546 (2002-10-01), Ishimaru et al.
patent: 7043908 (2006-05-01), Irikura et al.
European Search Report for European Application No. EP 08 02 0694, dated Nov. 15, 2010, 4 pgs.

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