Non-icing quiet air-operated pump

Details Non-icing quiet air-operated pump Non-icing quiet air-operated pump

1988-11-28

1990-05-01

Casaregola, Louis J.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

417375, 62402, 60412, F04B 3902

Patent

active

049214080

ABSTRACT:
A silencing system is provided for an air-operated pump which also eliminates icing of the pump at higher cycle rates and humidities. The exhaust from the air motor powers an air flow inducer to induce a flow of relatively warm ambient air. The induced flow of ambient air is drawn across cold components of the air motor, and the mixed (ambient and exhaust air) exit stream routed away from the air motor. The relatively warm mixed air exhaust flow also allows noise reduction by conventional acoustical techniques without suffering performance degradation due to icing.

REFERENCES:
patent: 2052869 (1936-09-01), Coanda
patent: 2893204 (1959-07-01), Anderson et al.
patent: 3355905 (1967-12-01), Berhold et al.
patent: 3938348 (1976-02-01), Rickers
patent: 4127011 (1978-11-01), Giles et al.
patent: 4580406 (1986-04-01), Nims

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