Seal device for rotating shafts, in particular stern tube seal f

Details Seal device for rotating shafts, in particular stern tube seal f Seal device for rotating shafts, in particular stern tube seal f

1992-10-30

1994-05-03

Mitchell, David M.

Marine propulsion

Inboard engine mount

Having thru-hull sealing means

416174, B63H 2336

Patent

active

053082699

ABSTRACT:
The invention employs the principle of the prior art for cooling a heated body by means of so-called heat pipes, with seal devices for rotating shafts, in particular for a ship's propeller shaft. According to this principle, an externally closed chamber extending in the longitudinal direction and filled with a liquid working fluid extends on one end into the body to be cooled, and on the other end into a cold medium, whereby a constant circulation takes place, so that the work fluid is evaporated in the hot portion of the chamber, the vapor flows into the cold portion of the chamber, condenses there, and the condensate is returned to the hot portion by way of a capillary structure (FIG. 1 ).

REFERENCES:
patent: 3580214 (1971-05-01), Muller
patent: 3863737 (1975-02-01), Kakihara
patent: 3934952 (1976-01-01), Gardner
patent: 4861294 (1989-08-01), Ousley, II

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