Deicing system for a butterfly valve

Details Deicing system for a butterfly valve Deicing system for a butterfly valve

1994-08-16

1996-03-19

Chambers, A. Michael

Fluid handling

With heating or cooling of the system

137339, 60 39093, F02G 500

Patent

active

054996511

ABSTRACT:
Auto-deicing system with a valve having a butterfly plate (5).
The spindle (8) of the valve (4) is controlled by a system terminated by a pin (11) coaxial to the spindle (8) and which, like the latter, has slots (13). When the pin (8) is iced up, the control system initiates a movement of the pin (11) so that the slots (12, 13) come into extension with one another, which allows a circulation of the hot gas on one side of the butterfly plate (5) through the spindle (8), which is thus reheated. The opening movement resumes when the ice has melted.
The invention is applicable to cold starting systems on aircraft engines.
(FIG. 3 )

REFERENCES:
patent: 2121707 (1938-06-01), McGee
patent: 2993496 (1961-07-01), Ackley
patent: 4561245 (1985-12-01), Ball
patent: 4831818 (1989-05-01), Norris et al.
patent: 5406798 (1995-04-01), Wiesner, Jr.

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