Hydrostatic transaxle assembly

Details Hydrostatic transaxle assembly Hydrostatic transaxle assembly

1984-06-18

1986-04-15

Chambers, A. Michael

Power plants

Pressure fluid source and motor

Having plural energy outputs

91491, 192 85AA, F16D 3102

Patent

active

045818959

ABSTRACT:
A hydrostatic transaxle assembly having first and second output shafts extending outward therefrom. The assembly includes a housing enclosing a portion of the first and second output shafts and forming a generally cylindrical chamber therein. A manifold is positioned around one of the output shafts and has an outer surface which mates with an inner surface of the housing. A pair of high torque, low speed motors are secured to an inner surface of the housing on opposite sides of the manifold. One of the motors is splined to the first shaft while the other motor is splined to the second shaft. Operation of the motors cause the respective shafts to rotate. The motors operate on pressurized fluid which is supplied through fluid passages. A control valve is positioned across the fluid passages to regulate the operation thereof. The assembly further includes means for axially retaining and hydraulically balancing the motors against the sides of the manifold such that hydraulic forces acting on one of the motors will be transferred to and offset by a similar force acting on an opposite surface of the second motor.

REFERENCES:
patent: 3419096 (1968-12-01), Zagotta
patent: 3511131 (1970-05-01), Kress
patent: 3602347 (1971-08-01), Yamaguchi et al.
patent: 3760691 (1973-09-01), Klechner et al.
patent: 3864916 (1975-02-01), Maistrelli et al.
patent: 3948049 (1976-04-01), Ohms et al.

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