Transmission device for an auxiliary or accessory of a variable-speed engine, an engine equipped therewith and uses thereof
OwnerRoumen ANTONOVinventor
Life of this patent
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Abstract
A transmission device mounted between a supercharger compressor and a pulley designed to drive it from the vehicle motor. Two successive modules each capable of a direct engagement ratio through a free wheel, or of an overdrive ratio by locking the planet gear by means of a clutch are clamped by a spring or released by the action of centrifugal counter-weights. The action is at least compensated by the axial thrust of the teeth Fp produced by the planet gear when it is loaded. The invention independently regulates the rotational speed of the apparatus notwithstanding the speed variations of the pulley.
Claims20
1-21. (canceled)
A transmission device with at least two transmission ratios for driving an apparatus by a variable-speed engine adapted to drive a main load in addition to said apparatus, said transmission device comprising a gear set having helical teeth and a selective coupling means capable of two states corresponding to a low gear ratio and to a high gear ratio in which the apparatus is driven at a higher speed than in the low gear ratio for a same rotation speed of the engine, characterized in that said transmission device comprises a first force-generating means for generating a first contributory force that varies depending on rotation speed in the device, a second force-generating means for generating from the tooth pressure in the helical teeth a second contributory force that varies depending on a torque in the device, means being provided to transmit the first and the second contributory forces to at least one urging means mounted for actuating the selective coupling means said contributory forces generated and transmitted so that a high said speed promotes operation in the low gear ratio and a high said torque promotes operation in the high gear ratio.
Dependencies are inferred from the claim text.