Self-locking hydrostatic differential gearing

Details Self-locking hydrostatic differential gearing Self-locking hydrostatic differential gearing

1990-09-17

1992-01-28

Braun, Leslie A.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Control of differential planetary gearing

475 88, 475252, F16H 1455, F16H 142

Patent

active

050839870

ABSTRACT:
With a differential gearing having a spur gear construction, the compensating gears (31a, 31b) are installed in meshing pairs and are tightly enclosed by a housing (14) so that with meshing spur gears (22, 23) they can act as toothed pumps with pressure zones, with a locking moment being produced between the two driven shafts (2,3). A substantial increase in the locking moment is achieved in that the compensating gears constructed as pinions are disposed in a determined sequence on the circumference of the spur gears and also comprise along their face width partitions (32) which prevent a reduction in pressure along the toothing. As a result with an equal number of pinion pairs there is produced a number of pressure zones which is more than double and consequently there is an increase in the locking moment developed.

REFERENCES:
patent: 1229548 (1916-09-01), Vansant et al.
patent: 2693720 (1951-07-01), Wildhaber
patent: 2949792 (1960-08-01), Smith
patent: 3251244 (1966-05-01), Nilkell
patent: 3350961 (1965-08-01), Dodge
patent: 3437186 (1969-04-01), Roper

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