Fluid-filled elastic rotational coupling having two fluid chambe

Details Fluid-filled elastic rotational coupling having two fluid chambe Fluid-filled elastic rotational coupling having two fluid chambe

1991-02-22

1992-06-23

Peters, Jr., Joseph F.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

464 24, 2671412, F16F 500, F16D 380

Patent

active

051236338

ABSTRACT:
A fluid-filled elastic rotational coupling including an inner and an outer sleeve fixed to one and other of a driving and a driven rotary member, an intermediate sleeve disposed in concentric and radially outwardly spaced relation with the inner sleeve, a pair of wings extending diametrically opposite parts of the inner sleeve toward the intermediate sleeve, an elastic body interposed between the inner and intermediate sleeves and having two pairs of pockets each pair being formed on opposite sides of each wing as viewed in the circumferential direction of the coupling, and a sealing rubber layer between the intermediate and outer sleeves. The outer sleeve closes the pockets to thereby provide two pairs of fluid chambers. An orifice passage is provided between the intermediate and outer sleeves, for fluid communication between each pair of fluid chambers whose fluid pressures change in opposite direction upon relative rotation of the inner and outer sleeves.

REFERENCES:
patent: 4588174 (1986-05-01), Konishi
patent: 4619627 (1986-10-01), Balken et al.
patent: 4749174 (1988-06-01), Kanda
patent: 4817926 (1989-04-01), Schwerdt
patent: 4919401 (1990-04-01), Yano
patent: 4921229 (1990-05-01), Hori
patent: 4944482 (1990-07-01), Bouhier et al.
patent: 5007304 (1991-04-01), Ide

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