CONTINUOUSLY VARIABLE TRANSMISSION

WIPO Patent Application WO/2012/131965

A1

Provided is a continuously variable transmission wherein there is a large pressure differential between opposing sides of a seal ring and degrading of durability due to abrasion or heat generation is controlled in a case where the inner periphery of a mobile sieve and the outer periphery of a fixed sieve come into contact on the contact surfaces thereof due to eccentric rotation, sliding, or the like. In a continuously variable transmission (2), a seal ring (20) is interposed between the outer periphery of a shaft member (11) and the inner periphery of a mobile sieve (8), the belt side on one side of this seal ring (20) is a low pressure section (23), the other side thereof is a high pressure section (22), and the leakage of fluids from the high pressure section (22) to the low pressure section (23) is prevented with the seal ring (20). A clearance (a) on the high pressure section (22) side between the outer periphery of the shaft member (11) and the inner periphery of the mobile sieve (8) and a clearance (b) on the low pressure section (23) side between the outer periphery of the shaft member (11) and the inner periphery of the mobile sieve (8) differ.

KIMURA KENTA (JP)
HATTORI YUJI (JP)
INAGAWA TOMOKAZU (JP)
INAGAKI TAKAFUMI (JP)

PCT/JP2011/058183

October 04, 2012

March 31, 2011

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TOYOTA MOTOR CO LTD (JP)
KIMURA KENTA (JP)
HATTORI YUJI (JP)
INAGAWA TOMOKAZU (JP)
INAGAKI TAKAFUMI (JP)

F16H9/18

JPH0710120Y2	1995-03-08
JP2005530110A	2005-10-06
JPH05149439A	1993-06-15

WATANABE, TAKEO (JP)
Takeo Watanabe (JP)

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