Composite heat transfer device with pins having wings alternatel

Details Composite heat transfer device with pins having wings alternatel Composite heat transfer device with pins having wings alternatel

1985-10-16

1987-01-27

Davis, Jr., Albert W.

Heat exchange

Heat transmitter

165181, F28F 700

Patent

active

046388583

ABSTRACT:
Heat conducting pins are mounted on a base to be cooled and carry heat conducting wings that extend oppositely in the upstream and downstream direction of the flow of a coolant across the base. The wings are generally trapezoidal in shape, and they produce a greater drag on the coolant flow along the longer edge of the trapezoid shape than along the shorter edge. The pins along a column of coolant flow are oriented with the shorter parallel edges of the wings alternately at the base or at the top of the pin. The alternating regions of high drag and low drag produce an up-down motion in the coolant flow that improves heat transfer.

REFERENCES:
patent: 4356864 (1982-11-01), Ariga et al.
patent: 4542784 (1985-09-01), Welsh
patent: 4567505 (1986-01-01), Pease et al.
IBM Technical Disclosure Bulletin, R. C. Chu & U. P. Hwang, vol. 17, No. 12, May 1975, p. 3656.

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