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US 4,090,559 AGranted
Heat transfer device
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorFerdi E. Megerlin
Life of this patent
Estimating the term…
Abstract
A heat transfer device comprising a spiral brush insert within a tube of rmally conductive material. The brush insert has a diameter slightly larger than the inside diameter of the tube and is inserted from the downstream end of the tube so that the tips of the brush deflect to form a friction fit for imbedding within the tube wall and thereby prevent movement of the brush insert during normal fluid flow in the device.
Claims4
A heat transfer device, comprising, in combination:
- a thermally conductive tube having a predetermined inside radius and adapted to receive a fluid flow in one direction;
- and
- a thermally conductive brush frictionally and thermally fixed in coaxial alignment within said tube including a stem and a plurality of bristles radially mounted about said stem, each of said bristles having a radial length slightly greater than said radius of said tube and deflected in said one direction from said stem and having the distal ends of said bristles frictionally embed the inner surface of said tube;
- whereby the frictional force fixing said brush within said tube is equal and opposite to the total force of the fluid against said brush.
1 more element
Dependencies are inferred from the claim text.