Fluid-operated clutch and brake devices

Details Fluid-operated clutch and brake devices Fluid-operated clutch and brake devices

1980-07-16

1983-05-03

Krizmanich, George H.

192 clutches and power-stop control

Clutches

Operators

192 12C, 192 88A, 192107M, 188 732, 188356, F16D 2504

Patent

active

043818331

ABSTRACT:
An improved coupling disk and friction ring arrangement provides for long life, high speed operation of clutches and/or brake devices operated by fluid pressure as in vacuum operated clutch and/or brake devices. The improved coupling disk has stepped ring-shaped portions tapering to a minimal outer annular disk portion having greatest flexibility in the overall flexible disk. The outer portion contacts a friction ring to seal a gap therebetween and provide coupling between an axle on which the disk is mounted and a housing to give either clutch or brake output. The friction ring acts in coupling with the disk while an encircling peripheral annular portion of the disk provides a leakage gap of constant predetermined value unaffected by wear in the disk or friction material. Preferably the gap is formed by burnishing the friction material using the eccentricity of the disk to define a minimum gap. The gap has a size such as to provide a block to leakage air flow.

REFERENCES:
patent: 3378121 (1968-04-01), Foret
patent: 3407912 (1968-10-01), Moore
patent: 3651909 (1972-03-01), Zautaszwili

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