HERMETICALLY SEALED COMPRESSOR Russian patent published in 2005 - IPC

FIELD: refrigerating industry; compressors.

SUBSTANCE: proposed compressor contains crankcase with oil bath, shaft, shaft support, shaft end face cover, forced oil feed unit, centrifugal pump made in form of cone and arranged in shaft space from side pointed to end face cover of shaft, and spacer arranged between end face cover of shaft and support of shaft. Two through holes inter connected by channels are made in spacer. First hole is located in center of spacer, and second hole is connected with forced oil feed unit made in form of positive displacement pump. Spacer is provided with at least one degassing hole displaced from center of spacer to distance less than radius of shaft space. At least one degassing hole registered with degassing hole of spacer is made in end face cover of shaft. Apex of cone of centrifugal pump is arranged on end face of shaft.

EFFECT: provision of uninterrupted delivery of oil at starting, reduced axial dimensions of compressor.

3 cl, 3 dwg