Planetary gear transmission systems or components – Differential planetary gearing – Planet pinion is worm gear
Patent
1988-10-31
1990-04-17
Diehl, Dwight G.
Planetary gear transmission systems or components
Differential planetary gearing
Planet pinion is worm gear
475249, F16H 138, F16H 142
Patent
active
049169785
ABSTRACT:
The device comprises first and second planet wheels having a common axis, first and second pairs of first satellite gear wheels meshing respectively with the first and second planet wheels, the two gear wheels of each of the said pairs being rotatable on a differential housing coaxial with the planet wheels and having axes lying respectively in first and second planes orthogonal to one another and passing through the first-mentioned said common axis; the device further includes two pairs of second satellite gear wheels also rotatable on the differential housing and having axes lying in the same plane orthogonal to the first and second first-defined planes, each of the second satellite gear wheels meshing simultaneously with one of the said first satellite gear wheels belonging to the first pair and with one of the said first satellite gear wheels belonging to the second pair in such a way that drive can be transmitted from one of the said first satellite gear wheels of one of the said pairs simultaneously to two of the said first satellite gear wheels of the other of the said pairs through a pair of the said satellite gear wheels.
REFERENCES:
patent: 1164769 (1915-12-01), Walter
patent: 1195314 (1916-08-01), Williams
patent: 1262833 (1918-04-01), Nogrady
patent: 1310976 (1919-07-01), Williams
patent: 2070569 (1937-02-01), Asam
patent: 2666343 (1954-01-01), Casa-Massa
Buoncristiani Piero
Razelli Giovanni B.
Diehl Dwight G.
Ferrari Engineering S.p.A.
Piaggio & C. S.p.A.
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