Title:
DUAL DRIVE CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO2000015977
Kind Code:
A3
Abstract:
A continuously variable transmission has dual driving connections extending between a first shaft and a second shaft. The driving connections generally include a drive pulley, a driven pulley and a belt. The pulleys each comprise a fixed portion and an axially moveable portion. Movement between the two portions changes an effective diameter of the pulley. The moveable portions of the drive pulley are positioned next to one another on the first shaft and the moveable portions are interposed between the fixed portions of the drive pulleys. The fixed portions of the driven pulleys, on the other hand, are interposed between the moveable portions. The driven pulleys are free to rotate relative to the second shaft. A differential is positioned between the fixed portions of the driven pulleys, connects the two fixed portions and transfers the torque from the driven pulleys to the second shaft.
Inventors:
BROWN ALBERT W
Application Number:
PCT/US1999/021059
Publication Date:
July 13, 2000
Filing Date:
September 14, 1999
Export Citation:
Assignee:
A W BROWN CO INC (US)
International Classes:
F16H9/18; F16H9/16; F16H37/08; F16H55/56; F16H63/08; F16H61/662; (IPC1-7): F16H9/16; F16H37/08; F16H55/56
Foreign References:
| DE906395C | 1954-03-11 | |||
| DE4305102A1 | 1994-08-25 | |||
| US4056987A | 1977-11-08 | |||
| US1819227A | 1931-08-18 | |||
| US2256114A | 1941-09-16 | |||
| US2648987A | 1953-08-18 |
Other References:
See also references of EP 1112453A2
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