Throttle-valve connection piece

Details Throttle-valve connection piece Throttle-valve connection piece

1983-11-28

1986-02-25

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Butterfly

1375135, F16K 1226

Patent

active

045724784

ABSTRACT:
A throttle valve 4 is pivotally mounted about a shaft 3 within a connection-piece housing of a throttle-valve connection piece. In order to reduce the air leakage rate, means are provided for eddying the leakage air which, when the throttle valve is closed, passes between it and the wall of the bore of the connection-piece housing. The connection-piece housing preferably has two bores which open into each other forming a crescent-shaped step, against which the throttle valve rests in the closed position and a reduction in cross section on one side in the bore of the connection-piece housing is provided by an arcuate transition to the bore of smaller diameter and the crescent-shaped step is located on the opposite side.

REFERENCES:
patent: 813771 (1906-02-01), Bush
patent: 2946554 (1960-07-01), Asker et al.
patent: 3809361 (1974-05-01), Pfundstein et al.
patent: 3941151 (1976-03-01), Biddle
IBM Technical Disclosure Bulletin, vol. 10, No. 12, May 1968, p. 1988.

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