Chain drive, especially a camshaft/camshaft drive for a motor vehicle
AssigneeJoh. Winkelhofer & Sohne GmbH und Co. KG
InventorsThomas Fink, Peter Schulze
Life of this patent
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Abstract
The present invention relates to a chain drive, in particular camshaft/camshaft drive for an automotive engine, the chain drive comprising at least two chain gears and a drive chain. Such a chain drive shall be made more compact without excessively great losses in its low-noise characteristics. To this end at least two chain gears are arranged in laterally offset relationship with one another in axial direction. The drive chain is a multiple-track chain. Each of the offset chain gears has assigned thereto a separate track of the multiple-track chain due to the lateral offset. The tip diameters of the offset chain gears are overlapping.
Claims10
A chain drive for an automotive engine, comprising in combination at least two chain gears (1, 3), a drive chain (5), said at least two chain gears (1, 3) being arranged in laterally offset relationship with one another in an axial direction, wherein said offset chain gears (1, 3) have tip diameters (dk) being in engagement with a separate track of said multiple-track chain (5) and have assigned thereto a fixed support rail (9, 10) being in line with the associated chain gear (1, 3) for supporting and being in slide contact with the respective separate track of said associated chain gear (1, 3) at a side next to the chain gear (1, 3) which is offset from and not in engagement with the respective track.
Dependencies are inferred from the claim text.