Radially oriented nutational traction drive transmission
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United States of America Patent
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-
Dec 23, 1986
Issued Date -
N/A
app pub date -
Apr 18, 1985
filing date -
Feb 26, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A continuously variable traction drive transmission of the class including three working bodies, two of which are concentric with a first transmission axis, the other of which is concentric with a second axis intersecting and inclined with respect to the first axis, and wherein the angle of intersection subtending the axes is large acute angle so that the points of rolling friction contact always lie between the intersecting transmission axes. The body concentric with the second axis includes two oppositely convergent cone-like rolling surfaces of revolution about the second axis which are held in rolling friction engagement with annular plate-like members forming one of the two bodies concentric with the first axis. The other of the two bodies concentric with the first axis carries the body on the second in nutation and continuously variable speed ratios are achieved by adjusting the cone members relative to the plate members.
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