Dual mode tensioner
AssigneeDayco IP Holdings, LLC
InventorLingyuan Kong
Life of this patent
Estimating the term…
Abstract
A tensioner is disclosed. The tensioner includes an arm, a tong, and a clutch. The arm is rotatable about a first axis in an opposite direction. The arm includes at least one stopping element. The tong is selectively engaged with the at least one stopping element of the arm. The arm is substantially prevented from rotating in the opposite direction if the tong is engaged with the at least one stopping element. The clutch is operatively coupled to the arm. The clutch includes an engaged and a disengaged position. If the clutch is in the engaged position, then the tong is engaged with the at least one stopping element of the arm.
Claims20
A tensioner comprising:
- an arm rotatable about a first axis in an opposite direction, the arm including at least one stopping element;
- a tong that is selectively engaged with the at least one stopping element of the arm, wherein the arm is substantially prevented from rotating in the opposite direction if the tong is engaged with the at least one stopping element;
- and
- a clutch operatively coupled to the arm, the clutch including an engaged and a disengaged position, wherein if the clutch is in the engaged position then the tong is engaged with the at least one stopping element of the arm.
A belt-driven starter generator (BSG) system, comprising:
- an engine having a crankshaft;
- a starter/generator;
- an endless power transmitting element for providing power transmission between the crankshaft and the starter/generator, wherein the BSG system includes a running mode and a cranking mode, wherein the starter/generator operates as a starter motor and restarts the engine based on a predetermined engine-start condition in the cranking mode;
- and
- a tensioner for substantially resisting a motion in an opposite direction created by the endless power transmitting element as the BSG system operates in the cranking mode, the tensioner comprising:
- an arm rotatable about a first axis in the opposite direction, the arm including at least one stopping element;
- a tong that is selectively engaged with the at least one stopping element of the arm, wherein the arm is substantially prevented from rotating in the opposite direction if the tong is engaged with the at least one stopping element;
- and
- a clutch operatively coupled to the arm, the clutch including an engaged position corresponding to the cranking mode and a disengaged position corresponding to the running mode, wherein if the clutch is in the engaged position then the tong is engaged with the at least one stopping element of the arm.
Dependencies are inferred from the claim text.