Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having... – For shaft sealing – packing – lubricating or bearing means
Patent
1986-12-24
1988-08-16
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
With lubricating, sealing, packing or bearing means having...
For shaft sealing, packing, lubricating or bearing means
415174, 277 81R, 384123, 384473, F04D 2910
Patent
active
047640863
ABSTRACT:
A blower is used for circulating larger gas volumes, in particular for high power laser systems which operate according to the gas-transportation principle. The blower comprises a radial feeder being arranged in a connection between two gas ducts. The radial feeder is driven by a vertical shaft, rotating at high rotary speed. In order to permit extremely large gas volumes, typically in the range of several ten thousand cubic meters per hour, to be circulated, the shaft is seated in a pressure-tight housing. Two axially acting seals are arranged on the shaft at a certain distance from the radial feeder. The seals define a pump chamber connected with one of the gas ducts, a lock chamber and a drive chamber. The seal between the lock chamber and the drive chamber comprise an axial upper sliding ring resting elastically on a lower thrust ring. A lubricating-oil channel, connected to an axial lubricating oil supply duct in the drive shaft, has an upper bore connecting the channel with an opening in a sliding surface between the sliding ring and the thrust ring.
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Fortuna-Werke Maschinenfabrik GmbH
Garrett Robert E.
Kwon John T.
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