Flywheel for an internal combustion engine
AssigneeAB Volvo
InventorGrzegorz Janiszewski
Life of this patent
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Abstract
Flywheel device for internal combustion engines. The device has a first flywheel mass (1) intended to be coupled to the engine crankshaft, and a second mass (2) with a frictional surface (12) designed to carry a clutch cover with associated pressure plate. Via first and second springs (40a,40b), laid in channel (17), and fingers (5,6,18) torque is transmitted between the masses. In the torque-unloaded state, there is a small play ("s") between the second springs (40b) and the adjacent fingers. When low torque is transmitted (idle), only the first springs (40a) are active.
Claims5
Flywheel device for internal combustion engines comprising a first rotatable flywheel mass adapted to be connected to an output shaft from the engine, a second rotatable flywheel mass adapted to be coupled via a friction clutch to an input shaft of a transmission, and spring means acting between said masses for transmitting torque between said masses, said spring means comprising first and second spring means (40a, 40b) arranged to transmit torque between the masses, the first spring means (40a) being disposed without a play between support means (5, 6, 18) that are rigidly joined to said masses (1, 2), while said second spring means (40b), in the torque-unloaded state of the masses, is arranged with a play ("s") between cooperating said support means (5, 6, 18), and wherein each said first and second spring means (40a, 40b) is joined to a respective centering means (30, 32), such that in the torque-unloaded state, the centering means of said second spring means (40b) centers the second spring means (40b) between said cooperating support means (5, 6, 18) in the direction of rotation of said masses in an unbiased state.
Dependencies are inferred from the claim text.