Damper device for rotary motion

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Overload release coupling – Torque transmitted via resiliently biased positive drive...

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192 5633, F16D 700

Patent

active

058555188

ABSTRACT:
A damper device for rotary motion is disclosed which is small in size, has an excellent durability and can optionally change damping characteristics from the outside. Rotation of an input shaft is transmitted to a cylinder tube through a rotation transmitting device of loading cam type, thereby rotating an output shaft engaged with the cylinder tube through splines. When the rotational speed and torque of power to be transmitted is fluctuated, the cylinder tube is displaced against the resiliency of a conical plate spring and the volume of a pressure chamber is reduced. A viscous liquid in the pressure chamber is then discharged to the outside through a throttle hole. A relative displacement between the input and output shafts absorbs vibrations in terms of energy corresponding to the product of the mass and changes in the angular speed of members which are displaced in synch with the input shaft.

REFERENCES:
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patent: 3205986 (1965-09-01), Kramer
patent: 4559023 (1985-12-01), Uchibaba et al.
patent: 4934500 (1990-06-01), Hanks et al.
patent: 4947700 (1990-08-01), Kern et al.
patent: 5070974 (1991-12-01), Kirkwood
patent: 5295907 (1994-03-01), Akkerman
patent: 5680804 (1997-10-01), Eberhart

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