Patent ID: 6035930
Filing Date: 2000-03-14
Classification: B62D,F01P,F15B,Y10S

Abstract:
A combined power steering hydraulic fluid reservoir and cooling unit comprising a housing having a reservoir tank for receiving and collecting hydraulic fluid from a power steering gear and holding said hydraulic fluid in readiness for supply to a hydraulic pump, said reservoir tank comprising a cylindrical canister extending axially along an axis said housing having a heat exchanger with a cooling liquid flow path therethrough in heat transfer relation with said hydraulic fluid, said heat exchanger comprising an annular jacket around said canister, said jacket having first and second axially spaced annular chambers separated by a circumferential baffle therebetween, said first annular chamber having a cooling liquid inlet, said second annular chamber having a cooling liquid outlet, said baffle having a transfer passage therethrough such that said cooling liquid flow path is through said cooling liquid inlet, then through said first annular chamber, then through said transfer passage through said baffle, then through said second annular chamber, then through said cooling liquid outlet, wherein said baffle is C-shaped in radial cross-section with facing ends of the C-shape defining said transfer passage in the gap therebetween.