Rotary kinetic fluid motors or pumps – Including heat insulation or exchange means – Cooling fluid contacts shaft – seal or bearing
Patent
1997-07-24
1999-08-10
Lopez, F. Daniel
Rotary kinetic fluid motors or pumps
Including heat insulation or exchange means
Cooling fluid contacts shaft, seal or bearing
415 1, 415175, F01D 2508
Patent
active
059348712
ABSTRACT:
The method and apparatus for supplying an anti-oxidizing gas to, and simultaneously cooling a shaft and a fan blade used in, a special atmosphere, heat treatment chamber and for minimizing corrosion of the shaft and fan blade comprises the steps of and structure for: providing an elongate enclosure around an end section of a shaft having an outer end mounting a fan blade; surrounding a portion of the enclosure surrounding a portion of the shaft section located inwardly of a point where the fan blade is mounted to the outer end of the shaft section with a water jacket; directing water into the water jacket surrounding the portion of the enclosure surrounding the portion of the shaft section within the shaft enclosure; supplying anti-oxidizing filler gas to the chamber through the enclosure; and directing the gas to and through the enclosure along the shaft section, into and through the fan blade and then into the chamber for establishing a preheated, special atmosphere in the chamber.
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Lopez F. Daniel
Vigil Thomas R.
Woo Richard
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