Machine element or mechanism – Elements – Gear casings
Patent
1987-05-19
1989-08-15
Braun, Leslie A.
Machine element or mechanism
Elements
Gear casings
74191, F16H 3706
Patent
active
048563714
ABSTRACT:
A continuously variable transmission having a pair of plate-like omega members rotatable about and spaced on a primary transmission axis to be positioned on opposite sides of a biconical beta body, the axis of which is inclined at a large acute angle with respect to the primary transmission axis so that the beta body and omega members engage in rolling friction contact at two points of contact on opposite sides of the primary transmission axis. The omega body members are connected by an external torque cage and driven by a tubular shaft. The beta body is linked by gearing to a theta shaft rotatably supported within the omega shaft. The omega shaft carries at least one planetary gear set in which the planet gears are rotatably supported in the omega shaft and wherein the sun gear is carried by the theta shaft. By appropriate selection of the gearing linking the beta body to the theta shaft and of the ratio in the planetary set, the transmission is capable of providing a two range output with synchronous shifting between ranges.
REFERENCES:
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patent: 3251243 (1966-05-01), Kress
patent: 3406597 (1968-10-01), de Brie Perry
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patent: 4630494 (1986-12-01), Kemper
Joseph L. Tevaarwerk Notebook Entries Dated 11-4-86 and Entitled "Various Transmissions" and Discussion.
"The Perbury Transmission", by F. G. de B. Perry, ASME Paper No. 80-GT-22.
"The Leyland Perbury Transmission", Transactions of the ASME, pp. 4-7.
Braun Leslie A.
Chartoff Janice E.
Tractiontec Corporation
Ziems Robert F.
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