Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Condition responsive
Reexamination Certificate
2011-06-07
2011-06-07
Mansen, Michael R (Department: 3654)
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Condition responsive
C474S011000, C474S012000, C474S017000, C474S018000, C474S028000
Reexamination Certificate
active
07955204
ABSTRACT:
In a stepping motor cooling apparatus for a belt-type continuously variable transmission, a pair of primary and secondary pulleys are disposed inside a transmission case, and a forward/backward switching unit is disposed coaxially to the primary pulley, furthermore, a stepping motor is disposed below the forward/backward switching unit. An inner case originating from the transmission case surrounds a circumference of the forward/backward switching unit. Through the inner case, a dripping hole is formed at an inner case's portion directly above the stepping motor so that working fluid drained from the forward/backward switching unit can drip on the stepping motor. In order to further improve the cooling effect of the stepping motor, a recess portion is formed immediately below the stepping motor at an upper surface of a valve body disposed under the stepping motor.
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Shinso Yoshihide
Yada Hiroyuki
Yamane Nobufumi
Foley & Lardner LLP
Jatco Ltd
Liu Henry
Mansen Michael R
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