Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – With synchronizing clutch or brake
Patent
1997-10-07
2000-02-01
Ta, Khoi Q.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
With synchronizing clutch or brake
475285, F16H 344
Patent
active
060196971
ABSTRACT:
A forward/reverse clutchless transmission with a 1 to 1 forward drive ratio. The invention is a transmission having a housing with two support bearings supporting axially aligned input and output shafts. In a first embodiment, the input shaft is supporting a planetary carrier, a sun gear, a plurality of planetary gears, a clutching hub, a mechanical engagement ring, and a synchronizing ring. The output shaft is supporting a ring gear. In forward mode the mechanical engagement ring slides to engage the planetary carrier forming a solid mechanical coupling with the output shaft. During reverse operation the mechanical engagement ring is in a neutral position and an brake band is actuated thereby stopping the planetary carrier rotation and making the output shaft rotate in the reverse direction. The second embodiment works in the same manner but the input shaft is supporting a planetary carrier, a sun gear, and a plurality of planetary gears, while the output shaft is supporting a ring gear, a clutching hub, a mechanical engagement ring, and a baulk or synchronizing ring. The third embodiment is a combination of the first and the second embodiments. The various embodiments give the present invention versatility and increase the number of applications for which it may be used.
REFERENCES:
patent: 1983834 (1934-12-01), Barnes
patent: 2582487 (1952-01-01), Kelbel
patent: 2599559 (1952-06-01), Kelbel
patent: 2658413 (1953-11-01), Orr et al.
patent: 2910893 (1959-11-01), Peras
patent: 3077794 (1963-02-01), Candellero
patent: 3230796 (1966-01-01), Thomson
patent: 3478622 (1969-11-01), Reid
patent: 3529494 (1970-09-01), Matte
patent: 4274304 (1981-06-01), Curtiss
patent: 4489626 (1984-12-01), Lemon
patent: 4569252 (1986-02-01), Harper
patent: 5390347 (1995-02-01), Buri et al.
Litman Richard C.
Ta Khoi Q.
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