초록 ▼

A compressor assembly includes a compressor mechanism mounted within a hermetically sealed housing. The housing is effectively divided into a low pressure area at a relatively low temperature and a high pressure area at a relatively high temperature. A motor and a lubrication system are contained wi

A compressor assembly includes a compressor mechanism mounted within a hermetically sealed housing. The housing is effectively divided into a low pressure area at a relatively low temperature and a high pressure area at a relatively high temperature. A motor and a lubrication system are contained within the low pressure area and the discharge side of the compressor mechanism is disposed in the high pressure area. A cylinder block effectively separates the high and low pressure areas of the compressor. The lubrication system includes an axial passage for communication oil from a sump to various compressor components, including rotational bearings. A seal cap is disposed at the end of the crankshaft that extends into the high pressure area and in combination with the cylinder block defines an oil discharge chamber at low pressure and isolated from the high pressure area. A second vent passage formed in the upper end portion of the crankshaft provides a communication path between a suction cavity formed in the compressor mechanism and the oil discharge chamber within the seal cup. A pressure drop caused by the reciprocating action of the pistons in the compressor mechanism occurs at the oil discharge area formed in the seal cup thereby assisting the oil pump in drawing oil through the oil passage in the crankshaft. An acoustic insulator is provided intermediate the compressor mechanism and a mounting flange to isolate and reduce vibration and noise which occurs during compressor operation.

대표청구항 ▼

[ What is claimed is:] [1.] A hermetic compressor comprising:a hermetically sealed housing having an oil sump therein;a reciprocating compressor unit disposed in said housing and adapted to receive and compress refrigerant fluid at a suction pressure and discharge compressed refrigerant fluid at a d

[ What is claimed is:] [1.] A hermetic compressor comprising:a hermetically sealed housing having an oil sump therein;a reciprocating compressor unit disposed in said housing and adapted to receive and compress refrigerant fluid at a suction pressure and discharge compressed refrigerant fluid at a discharge pressure;a motor having a stator and a rotor, said rotor rotatably connected to a crankshaft driving connected to said reciprocating compressor unit; anda lubrication system including an oil pump, oil communicated by said oil pump from said oil sump to at least one oil outlet, oil delivered to said reciprocating compressor unit by said at least one oil outlet;a portion of said reciprocating compressor unit dividing said housing into a high pressure area essentially at discharge pressure, and a low pressure area essentially at suction pressure, said motor and said lubrication system disposed in said low pressure area, and compressed refrigerant fluid being discharged by said compressor unit into said high pressure area.