Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Control of differential planetary gearing
Patent
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
Brosius Klaus
Korner Tillmann
Langenbeck Konrad
Braun Leslie A.
J. M. Voith GmbH
Wittels Daniel
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