Constant speed drive gear motor differential

Details Constant speed drive gear motor differential Constant speed drive gear motor differential

1989-12-20

1991-08-27

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Fluent material

192103F, 475 91, 475 94, F16D 3104

Patent

active

050426303

ABSTRACT:
A constant speed drive differential assembly (10) has an input end plate (11), a rotatable housing (17), and an output end plate (18). A gear motor (12) comprising meshing spur gears (13, 14) mounted on shafts (15, 16) are arranged in the housing (17). A driving gear (20) is fixed to one of the shafts (15 or 16) and meshes with an ouput gear (21) fixed to a cover plate (19) which is rotatable with respect to the housing (17) as a result of differential over-or-under-rotation effected by the spur gears (13, 14). A governor/speed controlled valve (28) external of the housing (17) connects a fluid source from an external pump (27) to one side (40) or the other side (41) of the meshing spur gears (13, 14) in response to an overspeed or underspeed condition of the input speed transmitted to the assembly (10).

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patent: 4630505 (1986-12-01), Williamson
patent: 4924989 (1990-05-01), Filderman

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