Blower for use in particle contaminated environments

Details Blower for use in particle contaminated environments Blower for use in particle contaminated environments

1988-10-20

1989-11-07

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Including means for handling portion separated from working...

415106, 4151212, F01D 2532

Patent

active

048788058

ABSTRACT:
An impeller-type blower for use particularly in environments of particle contaminated air includes a housing defining an aft cavity. An impeller, including a shaft, is rotatably mounted in the housing by a bearing forward of the aft cavity. Passages communicate the aft cavity with a region forward of the bearing to provide a pressure balance on opposite sides of the bearing and, thereby, prevent particle contaminants from infiltrating the bearing.

REFERENCES:
patent: 1640601 (1927-08-01), Delery
patent: 3250069 (1966-05-01), Rhoda
patent: 3256829 (1966-06-01), Schneider
patent: 3264653 (1966-08-01), Lebkuchner
patent: 3280750 (1966-10-01), White
patent: 3977811 (1976-08-01), Kuintzle, Jr.
patent: 4756664 (1988-07-01), Cohen et al.

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