Filter first donut oil cooler

摘要: Areas of potential oil stagnation in a donut cooler that lower heat transfer efficiency are avoided by locating closed fluid flow passages (100) for unfiltered to be directed filter (14) within spacers (102), (110), (130), and defined corresponding apertures (88), (90), (92), (94) plates (78) (80) forming cooling chambers (76) located centrally thereof.