Fluid flow control means
OwnerUlric K. Gerryinventor
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Abstract
The present invention relates to an arrangement for controlling fluid flow through an aperture. In one embodiment, the flow control arrangement, which may be used in association with a window to control the flow of ventilating air, comprises a strip brush composed of an array of resilient filaments firmly mounted at their root region. The free end region of the filaments define, with a fixed flange, the effective area or width of an aperture for the passage of ventilating air. Variations in the strength of the air flow incident to the array of filaments causes changes in the degree of deflection of the filaments, thus altering the effective width of the aperture and controlling the air flow through the aperture.
Claims23
A fluid flow control arrangement, comprising
- (a) means operable to at least partially define an aperture for the passage of a working fluid, the flow of which is to be controlled;
- (b) an array of resilient filaments, the density of the packing of the filaments being sufficient to prevent the ready passage of the working fluid therebetween;
- and
- (c) means mounting the array in a manner permitting the filaments resiliently to flex and thus deflect under the action of the working fluid;
- (d) the array being so mountable in relation to the aperture--defining means that, in operation of the control arrangement, the combined deflection of the separate filaments relative to the aperture--defining means under the action of the working fluid alters an effective area of the aperture available for the passage of the working fluid, and thereby controls fluid flow therethrough.
Dependencies are inferred from the claim text.