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US 2014/0349805 A1Published application
Continuously Variable Transmission Provided with a Roller Parking Zone
AssigneeTransmission Cvtcorp Inc.
InventorsSamuel Beaudoin, Christian McMahon, Paul Okulov
Life of this patent
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Abstract
Generally stated, various embodiments described herein concern a toroidal CVT provided with parking zones where the rollers are brought when the CVT is powered down. More specifically, a portion of the toroidal surfaces of the disks is reserved as a parking zone therefore preventing premature wear and/or damages to the working portion of the disks.
Claims28
A continuously variable transmission comprising:
- a first disk provided with a first toroidal surface defining a first working zone and a first parking zone;
- a second disk provided with a second toroidal surface defining a second working zone and a second parking zone;
- the second toroidal surface facing the first toroidal surface;
- at least one roller in contact with both the first and second toroidal surfaces;
- wherein, a) when the CVT is in operation, the at least one roller is in contact with both the first and second working zones and b) when the CVT is not in operation, the at least one roller is in contact with both the first and second parking zones.
2 more elements
A method to prevent damages to the working zones of a toroidal CVT, the method comprising:
- providing a first disk having a first toroidal surface defining a first working zone and a first parking zone;
- providing a second disk having a second toroidal surface defining a second working zone and a second parking zone;
- the second toroidal surface facing the first toroidal surface;
- providing at least one roller in contact with both the first and second toroidal surfaces;
- wherein, a) when the CVT is in operation, the at least one roller is maintained in contact with both the first and second working zones and b) when the CVT is not in operation, the at least one roller is maintained contact with both the first and second parking zones.
2 more elements
Dependencies are inferred from the claim text.