Title:
CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2010/093227
Kind Code:
A2
Abstract:
The present invention discloses a continuously variable transmission employing an inner-outer spherical traction drive system which uses as a power transmission medium a bevel gear having a traction power transmission surface with an obtuse-angle cone shape. The continuously variable transmission comprises: a gear mounted to rotate with respect to a frame in which the continuously variable transmission is installed, a traction member mounted to rotate coaxially with the gear, power transmission assemblies which include a power roller having a ribbed power transmission part on one side meshed with the gear and a power transmission surface on the other side traction-coupled with the traction member and which transmit torque as the power roller meshes with the gear and traction-couples with the traction member simultaneously, a support member which arranges the power transmission assemblies in a radial direction thereon and supports the power transmission assemblies to couple with the traction member, and a transmission unit which controls the axial position between the traction member and the power transmission assemblies. Therefore, the speed ratio between the gear and the traction member is continuously varied by the transmission unit.
Inventors:
BYUN DONGHWAN (KR)
Application Number:
PCT/KR2010/000958
Publication Date:
August 19, 2010
Filing Date:
February 16, 2010
Export Citation:
Assignee:
BYUN DONGHWAN (KR)
International Classes:
F16H15/16; F16H15/04
Foreign References:
| JP2005265089A | 2005-09-29 | |||
| JP2002013605A | 2002-01-18 | |||
| JP2006519349A | 2006-08-24 | |||
| JP2001521109A | 2001-11-06 |
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