Lg Electronics Inc.

Jai-Seong Sim

Hyeon Jun Kim

Kee-Joo Kim

Cheal-Ki No

Oil supply device () for a compressor in a refrigerating system including a cylindrical piece () fixed to a lower end of a crankshaft () for rotating together with the crankshaft, a propeller () fitted inside of the piece for making oil to rise by a relative movement with the piece (), and rotation prevention means () fitted to a bottom end of the propeller () for prevention of rotation of the propeller, thereby supplying an adequate amount of refrigerant oil even if the compressor, operative at a low, as well as a high speed, is operated at the low speed.

Oil supply device for compressor in refrigerating system

A valve assembly of hermetic compressor is disclosed, in which a valve insertion groove () and () are formed. The valve insertion groove () includes a suction opening () on a head () provided between a cylinder () and a head cover (), and the valve insertion groove () includes a discharge opening (). An insertion type suction valve () and an insertion type discharge valve () are connected to said valve insertion grooves () and () respectively by spot welding. Accordingly, the valve assembly of hermetic compressor can make the valve smaller and simpler, so that reduced fabricating cost and improved productivity can be obtained. Also, at the same time dead volume can be reduced, thereby improving the compression efficiency.

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Masan-shi, South Korea

Jai-Seong Sim