Hydromechanical final drive

Details Hydromechanical final drive Hydromechanical final drive

1993-02-26

1995-02-21

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Pump and motor in series with planetary gearing

F16H 4704

Patent

active

053911237

ABSTRACT:
A hydromechanical drive having a fixed hub support and a rotary hub, a hydrostatic swash-plate type axial piston motor and a planetary gear connected to the output side of the rotary hub. A control surface is formed on the hub support and pressure medium conduits are formed in the hub support and open on the control surface to provide pressurized hydraulic fluid to the axial piston motor. A cylindrical machine part surrounds the cylindrical drum of the axial piston motor and is non-rotatably connected to the rotary hub. A bearing is located between the inner surface of the rotary hub and the outer surface of the hub support to absorb forces from the axial piston motor and from outside the drive.

REFERENCES:
patent: 4029166 (1977-06-01), Haak et al.
patent: 4275616 (1981-06-01), Ehrlinger et al.
patent: 4583425 (1986-04-01), Mann et al.
patent: 5107718 (1992-04-01), Inagawa

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