Method of and apparatus for cooling a seal for machinery

Details Method of and apparatus for cooling a seal for machinery Method of and apparatus for cooling a seal for machinery

2005-07-19

2005-07-19

Nguyen, Hoang (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

C060S656000, C060S657000

Reexamination Certificate

active

06918252

ABSTRACT:
A method is provided for cooling a seal located in a wall of a chamber and through which a movable shaft passes, the seal being heated by hot pressurized vapor that leaks through the seal into the chamber and internal friction. The method comprises the steps of: providing a chamber in which the seal is located and into which the hot pressurized vapor leaks; injecting cool liquid into the chamber in which the seal is located; and cooling and condensing the hot pressurized vapor in the chamber thus cooling the seal.

REFERENCES:
patent: 4486147 (1984-12-01), Byrne et al.
patent: 4786238 (1988-11-01), Glaser et al.
patent: 4969796 (1990-11-01), Wescott et al.
patent: 5156523 (1992-10-01), Maier
patent: 5217350 (1993-06-01), Kimura et al.
patent: 5743094 (1998-04-01), Zimron et al.
patent: 6296441 (2001-10-01), Gozdawa

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