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US 10,520,072 B2Granted
Passive variable-pitch stator for torque converter
AssigneeSchaeffler Technologies AG & Co. KG
InventorJeremy Vanni
Life of this patent
Estimating the term…
Abstract
A torque converter includes an impeller, a turbine axially movable relative to the impeller, and a variable-pitch stator. The stator includes a hub and variable-pitch blades circumferentially arranged on the hub. Each of the blades are rotatable between first and second positions in response to axial movement of the turbine.
Claims20
A torque converter comprising:
- an impeller;
- a turbine axially movable relative to the impeller;
- and
- a stator including a hub and variable-pitch blades circumferentially arranged on the hub, wherein each of the blades are rotatable between first and second positions in response to axial movement of the turbine.
1 more element
A torque converter comprising:
- an impeller;
- a turbine axially movable relative to the impeller;
- and
- a stator including:
- a hub,
- variable-pitch blades circumferentially arranged on the hub and each having a crank rotatable to rotate the blade between first and second positions,
- a piston plate disposed between the turbine and the cranks, and engageable with the cranks, and
- a resilient member disposed in the hub and engaging the cranks to bias the blades to the first position, wherein the stator is configured such that each of the blades rotates towards the second position in response to the turbine exerting a force on the piston plate in excess of a spring force of the resilient member.
5 more elements
A torque converter comprising:
- an impeller;
- a turbine axially movable relative to the impeller;
- and
- a stator including variable-pitch blades, a piston engageable with the blades to modify a pitch angle of the blades, and a resilient member biasing each of the blades to a first position, wherein the stator is configured such that each of the blades moves towards a second position in response to the turbine exerting a threshold force on the piston.
1 more element
Dependencies are inferred from the claim text.