Apparatus for damping vibrations in power trains of motor vehicl

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Torque transmitted via flexible element – Coil spring

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464 24, F16D 380, F16F 1512

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055362087

ABSTRACT:
Apparatus for damping vibrations in the power train between the engine and the transmission of an automobile has a first flywheel connectable to the crankshaft of the engine, a second flywheel connectable to the input shaft of the transmission by a friction clutch, and at least one damper between the flywheels. The damper has a twin-section output element which is axially movably secured to the second flywheel by a toothed coupling and is biased by coil springs which react against the first flywheel. The sections of the output element are biased in opposite directions by at least one of the coil springs or by one or more additional coil springs so that the teeth of the coupling mate without play, at least under no-load or partial-load operating conditions in the neutral position of the damper.

REFERENCES:
patent: 1240126 (1917-09-01), Dubois
patent: 4440283 (1984-04-01), Nioloux
patent: 4723463 (1988-02-01), Reik et al.
patent: 4727970 (1988-03-01), Reik et al.
patent: 4739866 (1988-04-01), Reik et al.
patent: 4782718 (1988-11-01), Hartig et al.
"The Two-Mass Flywheel-A Torsional Vibration Damper for the Power Train of Passenger Cars-State of the Art and Further Technical Development", SAE Technical Paper Series #870394, Sebulke, pp. 1-10, Feb. 1987.

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