Compressors with oil pumping components

Abstract

The present invention relates to a compressor (1) comprising a casing (2) wherein the oil lubricating the movable members is placed, a body (3) situated in the casing (2), at least two feet (4) whereon the body (3) is seated, a support member (5, 105) that connects the two feet (4), a motor (6) situated on the body (3), a crankshaft (7) that transmits the movement of the motor (6) to the piston and that has an opening (8) extending from the lower end thereof to the upper end and an oil sucking member (9) that provides the oil to be delivered to the other movable members and that is placed at the lower end of the crankshaft (7) so that one end thereof enters into the opening (8) and the other into the oil at the base of the casing (2), and wherein the lubrication efficiency is improved.

Description

technical field [0001] The invention relates to a hermetic compressor with an oil sucking part, the lubrication efficiency of which is improved. Background technique [0002] In reciprocating hermetic compressors used in refrigerators, the slide bearings and other moving parts are lubricated by oil disposed within the compressor housing, with the crankshaft running in the slide bearings. In compressors, lubrication reduces frictional losses in moving parts, prevents wear and reduces temperatures by removing heat from compressor components. In compressor lubrication systems, oil is drawn from the bottom of the casing to be delivered to the bearings and compressor components that require lubrication. Generally, the centrifugal force acting on the oil due to the rotation of the crankshaft transports the oil from the bottom of the housing to the bearings. [0003] In variable capacity compressors used in refrigerators, by changing the rotation speed of the compressor, a coolin...

AI Technical Summary

Problems solved by technology

However, when only centering the wicking part at the midpoint of the foot, it sometimes creates problems

Therefore, the axial eccentricity between the crankshaft and the oil sucking part increases, which leads to a decrease in lubrication efficiency

With the oil sucking parts contacting the inner surface of the crankshaft, the compressor loses power and also wears the oil sucking parts

Particles detached from oil pumping components damage the compressor and sometimes even shut it down

Additionally, even when the crankshaft and oil pumping components are properly centered during assembly, vibrations generated during compressor operation can cause axial eccentricity

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