Mechanical sealing device

Details Mechanical sealing device Mechanical sealing device

1976-10-18

1978-10-31

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 88, 277215, 277DIG1, F16J 1536

Patent

active

041230698

ABSTRACT:
A mechanical sealing device for use with a rotary shaft extending through stationary casings. In this sealing device, first and second stationary ring members are arranged in surrounding but concentric relation to the rotary shaft, with a resilient bellows interposed therebetween, and a rotatable ring member is fitted on the rotary shaft. The first ring member is affixed to one of the casings while the second ring member is urged against the rotatable ring member by means of the resilient bellows in sliding relation thereto. A plurality of radial passages are defined in the rotatable ring member, so that cooling medium may be fed in the radial passages for cooling the rotatable ring member rather than sprayed over the surface of the rotatable ring member. In addition, the rotatable ring member is formed with an annular lead-in or guide portion having inner and outer conical peripheral surfaces for smoothly admitting injected cooling medium in the radial passages provided in the rotatable ring member. A nozzle for injecting the cooling medium therethrough is directed into an entrance of the annular lead-in portion for the radial passages.

REFERENCES:
patent: 2992842 (1961-07-01), Shevchenko et al.
patent: 3515394 (1970-06-01), Stevens
patent: 3905605 (1975-09-01), Hubner

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