Transmissions of the toroidal-race rolling-traction type
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United States of America Patent
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-
Aug 3, 1993
Grant Date -
N/A
app pub date -
May 28, 1992
filing date -
Dec 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two-regime, continuously-variable-ratio transmission of the toroidal-race rolling-traction type in which the variator (2) reducing epicyclic (10) and mixing epicyclic (15) are all coaxial, in which the driving connection between the variator output and the sun gear (18) of the mixing epicyclic includes a layshaft (23) or the like lying radially outboard of the reducing epicyclic, and avoids the use of a drum-like component which would surround those parts of the variator lying downstream of its output member (8). The invention also facilitates the use of gear units of equal ratio, and indeed of substantially identical structure, for the reversing (10) and mixing (15) epicyclics.
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