Brakes – Inertia of damping mass dissipates motion
Patent
1988-10-24
1990-05-22
Oberleitner, Robert J.
Brakes
Inertia of damping mass dissipates motion
188267, 267136, F16F 710, F16F 1503, F16M 100
Patent
active
049269852
ABSTRACT:
An oscillating apparatus comprises a cylinder, a piston reciprocatingly movably fitted in the cylinder, shaft members connected to the piston and extending out of the cylinder. The cylinder, piston and shaft members form an oscillator. An inlet and an outlet for an electro-rheological fluid are provided at each of two cylinder chambers defined in said cylinder by the piston. The apparatus further comprises voltage applying devices for applying electric voltage to the electro-rheological fluid passing through the inlets and outlets, respectively, so that applications of the voltage to the inlet of one cylinder chamber and the outlet of the other cylinder chamber are simultaneously effected and applications of the voltage to the inlets of both the cylinder chambers are alternately effected. With this arrangement, the switching-over of the closing and opening of the inlets and outlets are very rapidly performed by the application and removal of the electric voltage so that the piston undergoes vibration which is transmitted through the shaft members to an object, structure or the like, with the result that the object is controllingly vibrated and vibration to which the object is subjected is effectively damped.
REFERENCES:
patent: 3142230 (1964-07-01), Bidlack
patent: 3599428 (1971-08-01), Chaney
patent: 3612222 (1971-10-01), Minor
patent: 3917246 (1975-11-01), Gartner
Iida Kazuyoshi
Mizuno Keiichiro
Murakami Kazutomo
Bridgestone Corporation
Oberleitner Robert J.
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