Compact reversible variable speed transmission and differential

Details Compact reversible variable speed transmission and differential Compact reversible variable speed transmission and differential

1979-10-12

1981-05-19

Dorner, Kenneth

Machine element or mechanism

Elements

Gear casings

74378, 74193, F16H 3706, F16H 1516

Patent

active

042677491

ABSTRACT:
A compact reversible variable speed clutch transmission and differential including a rotable input shaft having a drive gear (76), forward and reverse gears (88,84) engaged with the drive gear on opposite sides thereof, and a pair of selectively operable clutches each having an input (92) connected to an associated one of the forward and reverse gears and an output (94). The clutch outputs are connected to the inputs (110) of a variable speed nutating transmission (120) which includes a pair of independently rotatable outputs (116). The transmission includes a pair of nutating elements (130) each having a surface (132) which is a non-cylindrical surface of revolution. The elements are mounted for rotation by a mounting device (126,128) for rotation and there is included a pair of drive units (134) one for each nutating element, fixedly connecting thereto and to an associated one of the outputs. Included is a pair of second drive units (140,142) one for each nutating element and in frictional engagement with the surface of revolution thereof. The second drive unit may be selectively moved along the associated surface of revolution for speed variation if moved together in concert or, to provide for differential action if moved differentially.

REFERENCES:
patent: 1512007 (1924-10-01), Klausmeyer
patent: 2333682 (1943-11-01), Schneider
patent: 2503891 (1950-04-01), Van Voorhis
patent: 2546064 (1951-03-01), Gerst
patent: 3535954 (1970-10-01), Chambers et al.
patent: 4152946 (1979-05-01), Kemper

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