Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1981-06-08
1985-08-06
Herrmann, Allan D.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74674, 74681, 74757, 74777, F16H 5710
Patent
active
045328285
ABSTRACT:
A system permitting a wide range of distribution, transmission, and reduction of rotary motion by means of a double epicyclic train. Two crown wheel plates face one another and are freely rotatable, one on a driving shaft and the other on coaxial driven shaft. The shafts also rigidly mount two facing inner planetary conical pinions that are coaxial and concentric with the respective crown wheel plates. Sandwiched between the plates are two sets of satellite pinions; the first set meshing with the crown wheel plates and the second set meshing with the planetary conical pinions. Both sets of satellite pinions freely rotate on cruciform axles. The cruciform axles, in turn, rotate freely about the coaxial driving and driven shafts. The system may be adapted to provide an automatic speed change gear system or, alternatively, a friction clutch system. In the friction clutch arrangement, one of the crown plates is held immobile so rotation is transmitted to the other crown plate indirectly by the cruciform axles and satellite gears. If braking forces are applied selectively to the rotating plate, rotational movement of the driving shaft will be passed smoothly through the satellite gears to the driven shaft. In the automatic speed change gear system, one crown wheel plate and a corresponding planetary conical pinion are interconnected by a rotary conditioning system so the remaining plate and pinion can be controlled to produce varied rotational velocity of the driven shaft.
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patent: 4055091 (1977-10-01), Kerr
Herrmann Allan D.
Rolnicki Joseph M.
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