Title:
BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION AND VEHICLE WITH SAME
Document Type and Number:
WIPO Patent Application WO/2012/114612
Kind Code:
A1
Abstract:
A hydraulic circuit (25) is provided with: a first control valve (53) for controlling hydraulic pressure in the first oil chamber (41) of a CVT (30); a lubrication circuit (80) configured so that hydraulic pressure therein changes according to the speed of an engine in such a manner that the hydraulic pressure increases as the speed of the engine increases; and a failsafe valve (54) comprising an electromagnetic four-way valve. In normal operation, the failsafe valve (54) is set to a first state in which the first control valve (53) and the first oil chamber (41) are connected. When a failure occurs, the failsafe valve (54) is switched to a second state in which at least the first oil chamber (41) and the lubrication circuit (80) are connected.
Inventors:
MANO YASUNORI (JP)
Application Number:
PCT/JP2011/078891
Publication Date:
August 30, 2012
Filing Date:
December 14, 2011
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
MANO YASUNORI (JP)
MANO YASUNORI (JP)
International Classes:
F16H61/00; F16H59/42; F16H61/12; F16H61/662
Foreign References:
| JPH09105457A | 1997-04-22 | |||
| JPH0565924A | 1993-03-19 | |||
| JP2002039343A | 2002-02-06 | |||
| JP2011038479A | 2011-02-24 | |||
| JPH08178049A | 1996-07-12 | |||
| JP2001280455A | 2001-10-10 | |||
| JP2006316819A | 2006-11-24 | |||
| JP2004169895A | 2004-06-17 |
Attorney, Agent or Firm:
GOTOH TAKASHI (JP)
Takashi Goto (JP)
Takashi Goto (JP)
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Claims:
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