COOLED BALL BEARING ASSEMBLY Russian patent published in 1997 - IPC

FIELD: mechanical engineering; cooling bearings, mainly in centrifugal separators. SUBSTANCE: cooled bearing assembly includes housing and cages in which two ball bearings are fitted on shaft. Injector ring with injectors is pressed between cages. Injectors are brought out to space between ball bearings. Low-pressure chambers located after bearings relative to injector ring are hydraulically connected by means of longitudinal passages provided on side of outer races of bearings forming cooling jacket. Injectors are directed towards both bearings. Shaft after one of bearings extends to vent chamber separates by taper impeller seal. EFFECT: enhanced efficiency of cooling of bearings; increased service life of bearings. 3 cl, 6 dwg