Oil cooler and method for forming it

Details Oil cooler and method for forming it Oil cooler and method for forming it

1978-09-20

1980-03-25

Richter, Sheldon

Heat exchange

Three non-communicating fluids

Concentric flow chambers

165155, 165DIG23, F28D 710

Patent

active

041945603

ABSTRACT:
A built-in oil cooler, comprising an outer tube and an inner tube, the latter tube is provided with a plurality of dent and projection portions alternately formed on its surface in axial direction thereof. Said inner tube is inserted in said outer tube to keep its outside face having no dent portion in contact with inside face of said outer tube, forming oil space between both of said tubes. Oil within said oil space flows zigzag to assure very good heat transfer rate.

REFERENCES:
patent: 1787904 (1931-01-01), Heyward
patent: 2993682 (1961-07-01), Huet
patent: 3358749 (1967-12-01), Chisholm et al.
patent: 4004634 (1977-01-01), Habdas

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