Oil cooler
AssigneeGeneral Motors Corporation
InventorShrikant M. Joshi
Life of this patent
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Abstract
A transmission oil cooler has spaced elongated plates secured at the margins and ports at either end to define an oil flow channel. A center disposed between the plates for creating turbulence in the oil and enhancing heat transfer comprises a metal sheet folded to form generally planar fins in side-by-side relationship and the fins having louvers extending over most of their area. The center is disposed in the flow channel with the planes of the fins transverse to the oil flow or alternatively with the planes of the fins parallel to the oil flow.
Claims4
An oil cooler for transferring heat from oil within the cooler to fluid without the cooler, comprising:
- a pair of elongated plates secured together at their margins and spaced from one another between the margins to form an oil flow path, the plates having inlet and outlet ports to define the general direction of oil flow,
- an oil center between the plates in thermal contact with the plates and in the oil flow path for transferring heat from the oil to the plates,
- the oil center comprising a corrugated metal sheet having a plurality of substantially plane fins in side-by-side relationship and joined at bends wherein the bends make the thermal contact with the plates, and
- a plurality of louvers in each fin for creating turbulence in the oil flow and defining openings in the fins, wherein the oil center is disposed with the direction of the fin planes transverse to the general direction of flow so that the oil passes through the openings of the fins.
Dependencies are inferred from the claim text.