Rotary shafts – gudgeons – housings – and flexible couplings for ro – Torque transmitted via flexible element – Coil spring
Patent
1990-09-14
1991-10-22
Hannon, Thomas R.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Torque transmitted via flexible element
Coil spring
1921062, F16D 1370
Patent
active
050591568
ABSTRACT:
The flywheel elements are resiliently coupled by means of two groups of springs which are connected in parallel. One group of springs operates with play and becomes operative substantially only when high torques are transmitted. At low speeds when only low torques can be generated by the engine, the flywheel has a very low resonance frequency determined solely by the second group of springs without play. This frequency remains below the frequencies of the vibrations which occur in this service phase. Upon the transmission of higher torques generated by the engine at higher speeds, although the resonance frequency rises due to the effect of the first group of springs with play, nevertheless, the resonance frequency remains below the frequency of the vibrations which occur at higher speed.
REFERENCES:
patent: 3138011 (1964-06-01), Stromberg
patent: 3266271 (1966-08-01), Stromberg
patent: 4485909 (1984-12-01), Gatewood
patent: 4611701 (1986-09-01), Friedmann
"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, Arno Sebulke, pp. 1-10, Feb. 87.
Tscheplak Ernst
Worner Gunter
Daimler-Benz AG
Hannon Thomas R.
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