Offset starter generator drive utilizing a fixed-offset dual-arm pivoted tensioner
AssigneeDayco Products, Inc.
InventorClayton R. Rogers
Life of this patent
Estimating the term…
Abstract
A method and system are taught for a tensioner for an endless power transmission belt in an engine. The method and system comprise an AGS pulley and crankshaft pulley coupled to the belt, one of the AGS pulley or the crankshaft pulley operating as a driving pulley that drives the belt so that a tight span and slack span are created in the belt on opposite sides of the driving pulley. The method and system also comprise accessory pulleys coupled to the belt. The tensioner comprises first and second arms, each arm rotatably coupled to a pulley, the pulleys being positioned such that a first one of the pulleys is coupled to the tight span and a second one of the pulleys is coupled to the slack span.
Claims18
A system comprising a tensioner for an endless power transmission belt in an engine, the system comprising:
- an AGS pulley and crankshaft pulley coupled to the belt, one of the AGS pulley or the crankshaft pulley operating as a driving pulley that drives the belt so that a tight span and slack span are created in the belt on opposite sides of the driving pulley;
- accessory pulleys coupled to the belt;
- the tensioner comprising first and second arms, each arm rotatably coupled to a pulley, the pulleys being positioned such that a first one of the pulleys is coupled to the tight span and a second one of the pulleys is coupled to the slack span.
A method of utilizing a tensioner for an endless power transmission belt in an engine, the method comprising the steps of:
- providing an AGS pulley and crankshaft pulley coupled to the belt, one of the AGS pulley or the crankshaft pulley operating as a driving pulley that drives the belt so that a tight span and slack span are created in the belt on opposite sides of the driving pulley;
- providing accessory pulleys coupled to the belt;
- providing the tensioner with first and second arms, each arm rotatably coupled to a pulley, the pulleys being positioned such that a first one of the pulleys is coupled to the tight span and a second one of the pulleys is coupled to the slack span.
A system comprising a tensioner for an endless power transmission belt in an engine, the system comprising:
- an AGS pulley, a crankshaft pulley, and an accessory pulley coupled to the belt, such that, when one of the AGS pulley or the crankshaft pulley operates as a driving pulley to drive the engine a tight span is created on an exit side of the crankshaft pulley and a slack span is created on an exit side of the AGS pulley;
- and
- the tensioner comprising first and second arms, each arm rotatably coupled to a pulley, the pulleys being positioned to be coupled to the belt on the opposite sides of the driving pulley.
A system comprising a tensioner for an endless power transmission belt in an engine, the system comprising:
- an AGS pulley and a crankshaft pulley coupled to the belt, such that when one of the AGS pulley or the crankshaft pulley operates as a driving pulley to drive the engine a slack span and a tight span are created in the belt on opposite sides of the driving pulley;
- accessory pulleys driven by the belt;
- the tensioner comprising first and second fixed-offset arms, each arm rotatably coupled to a pulley, the pulleys being positioned to be coupled to the belt on the opposite sides of the driving pulley.
Dependencies are inferred from the claim text.