Thermal disconnect coupling

Details Thermal disconnect coupling Thermal disconnect coupling

1985-11-07

1990-06-19

Stodola, Daniel P.

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

Overload release coupling

Including thermally responsive element

192 82T, F16D 900

Patent

active

049349775

ABSTRACT:
Dispersion of eutectic material (56) in a thermal disconnect coupling following thermal actuation is avoided by disposing the body (56) of eutectic material in a first axially opening cavity (40) in a driven shaft (24) having teeth (32) normally meshed with teeth (22) on a driving shaft (16). The first cavity (40) is closed by a wall (50) forming part of an output shaft (26) and the interface of the cavity (40) and the wall (50) is provided with seals (92, 94). The first cavity (40) is separated from a second cavity (42) in the driven shaft (24) by a perforated web (44, 46) and together with an element (60) supported by the output shaft (26) defines second chamber into which the body (56) may flow upon thermal actuation. The interface of the element (60) and the second cavity (42) is provided with seals (92, 94) to prevent the escape of eutectic material from the second chamber.

REFERENCES:
patent: 2539534 (1951-01-01), Eckhardt
patent: 2655015 (1953-10-01), Linder
patent: 3193068 (1965-07-01), Greve et al.
patent: 3637049 (1972-01-01), Butterfield et al.
patent: 3675444 (1972-07-01), Whipple
patent: 3889789 (1975-06-01), Boehringer
patent: 4086991 (1978-05-01), Swadley
patent: 4271947 (1981-06-01), Gaeckle
patent: 4385894 (1983-05-01), Sharpe et al.
patent: 4537578 (1985-08-01), Sharpe et al.

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