Damper disc

Details Damper disc Damper disc

1982-09-16

1986-07-22

Levy, Stuart S.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Fluid coupling

1921062, 464 64, 464 68, F16D 314, F16D 380

Patent

active

046016767

ABSTRACT:
The present invention discloses a damper disc comprising a spline hub; a radial flange formed at the hub; a case connected to facings; circumferentially spaced plural compressible coil springs connecting the case and the flange together; sealed spring chambers formed around the springs by the case or a cover; sealed narrow spaces connecting the spring chambers together; and spring seats disposed at both ends of the springs; said chambers and spaces being filled with oil, so that the oil applies a resistance force to the moving spring seats. At least one side surfaces of a portion of the flange radially inside the springs may be provided with radially spaced annular protrusions, and the cases may be provided with annular protrusions engaging with the protrusions on the flange with narrow spaces therebetween.

REFERENCES:
patent: 2316820 (1943-04-01), Thelander
patent: 2337134 (1943-12-01), Thelander
patent: 2674863 (1954-04-01), Thelander
patent: 2826902 (1958-03-01), De Coursey
patent: 2984091 (1961-05-01), Ludwig
patent: 4254855 (1981-03-01), Hildebrand et al.
patent: 4351167 (1982-09-01), Hanke et al.
patent: 4485907 (1984-12-01), Nishimura

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