Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Patent
1990-06-08
1992-01-07
Braun, Leslie A.
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
475 83, 60487, 60491, F16D 3900
Patent
active
050786598
ABSTRACT:
A transaxle driving apparatus for a small-sized vehicle such as a grass-mowing lawn tractor, formed from a two-piece housing to encapsulate a hydrostatic transmission with associated reduction gearing and mechanical differential member. One housing element is provided with a vertical input shaft which is drivingly engaged to the hydraulic pump of the hydrostatic transmission by means of bevel gearing. A hydraulic motor of the hydrostatic transmission is provided with a motor shaft, a speed reduction shaft, and a differential gear unit attached to the axle shafts, all shafts other than the input shaft being disposed horizontally along the plane containing the longitudinal axis of the transaxle for economy and compactness.
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patent: 4893524 (1990-01-01), Ohashi et al.
patent: 4914914 (1990-04-01), Inoue
patent: 4979583 (1990-12-01), Thoma et al.
Arnold George D.
Havens Dale I.
Thoma Christian H.
von Kaler Roland L.
Braun Leslie A.
Stavish Matthew
Unipat AG
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