Hydromechanical transmission

Details Hydromechanical transmission Hydromechanical transmission

1993-02-26

1995-11-21

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

Having a mechanical clutch or brake device in the power train

92 121, F16D 3102

Patent

active

054675979

ABSTRACT:
A hydromechanical transmission which includes a swash-plate type hydrostatic axial piston motor with a rotary cylindrical drum having work cylinders and a driven shaft. A planetary gear is located adjacent to and coaxial with the piston motor and includes a rotary hub surrounding both the planetary gear and the axial piston motor, A ring gear is located at the inner surface of the rotary hub and a stationary hub support having an open ended cavity to hold the axial piston motor is mounted within and coaxial with the rotary hub. The end wall of the cavity is a control surface for the axial piston motor and pressure medium channels which open on the control surface for periodic connection with the work cylinders in the cylindrical drum are formed in the stationary hub support.

REFERENCES:
patent: 3508401 (1970-04-01), Aplin
patent: 3527144 (1970-09-01), Firth et al.
patent: 3935796 (1976-02-01), Wood
patent: 3967541 (1976-07-01), Born et al.
patent: 4040312 (1977-08-01), Tappan et al.
patent: 4455920 (1984-06-01), Shaw et al.
patent: 4583425 (1986-04-01), Mann et al.
patent: 4930312 (1990-06-01), Metcalf
patent: 4951551 (1990-08-01), Arai et al.
patent: 5101630 (1992-04-01), Wagenseil

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