Air valve with bleed feature to inhibit icing

Details Air valve with bleed feature to inhibit icing Air valve with bleed feature to inhibit icing

1994-04-13

1994-11-22

Bertsch, Richard A.

Pumps

Motor driven

Fluid motor

91305, 13762569, F04B 1700

Patent

active

053663535

ABSTRACT:
The air valve on a reciprocating pneumatic pump bleeds air from the pressurized air chamber into the exhaust port through a hole in the valve cup in order to warm the exhaust port area and prevent ice build up in the area. Such construction is also suited for use in spool valves.

REFERENCES:
patent: 760122 (1904-05-01), Holmberg
patent: 2890658 (1959-06-01), Hjarpe
patent: 2944528 (1960-07-01), Phinney
patent: 3235030 (1966-02-01), Lindberg
patent: 3365022 (1968-01-01), Barber et al.
patent: 3635125 (1972-01-01), Rosen et al.
patent: 4009730 (1977-03-01), Starling
patent: 4127011 (1978-11-01), Giles et al.
patent: 4313468 (1982-02-01), Patel
patent: 4461204 (1984-07-01), Emonet
patent: 4921408 (1990-05-01), Kvinge et al.
patent: 5247965 (1993-09-01), Oka et al.

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