Patent ID: 6422305
Filing Date: 2002-07-23
Classification: F01M,F28D,Y10S

Abstract:
A liquid cooling system comprising a housing defining an interior volume, a housing cover for closing the housing, and a liquid cooler disposed in said interior volume; said housing having at least one inlet for liquid to be cooled opening into the housing interior volume, at least one outlet for cooled liquid, at least one coolant inlet, and at least one coolant outlet; said liquid cooler being comprised of stacked cooler plates each forming a liquid space and a coolant space sealingly separated from one another, a return passage for the cooled liquid arranged in the liquid cooler such that it passes through all cooling plates; each liquid space having an opening in fluid communication with the inlet for liquid to be cooled and another opening in fluid communication with the outlet for cooled liquid, and the coolant spaces being in fluid communication through respective openings in a bottom plate of the liquid cooler with the coolant inlet and with the coolant outlet; wherein the bottom plate of the liquid cooler sealingly contacts the housing such that an inner area space and an outer area space completely surrounding the inner area are formed between the bottom plate and the housing and are separated from the housing interior volume; said inner area space connecting the return passage to the outlet for cooled liquid, and said outer area space connecting the coolant spaces to the coolant inlet and to the coolant outlet.