Compressor utilizing shell with low pressure side motor and high pressure side oil sump
First Claim
1. A compressor system, comprising:
- a housing;
a partition within the housing defining a first chamber and a second chamber;
a motor disposed in the first chamber;
a compressor disposed within the housing operably connected to the motor;
an oil sump disposed in the second chamber;
a first orifice in the housing communicating a suction tube with the first chamber; and
a second orifice in the housing communicating the second chamber with a discharge tube, wherein fluid in the first chamber is at compressor suction pressure and fluid in the second chamber is at compressor discharge pressure.
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0 Petitions
Accused Products
Abstract
A compressor system includes a housing with a low pressure first chamber and a high pressure second chamber. A motor in the first chamber has a shaft that passes into the second chamber. A compressor in the housing is operably connected to the motor by the shaft. The second chamber contains an oil sump storing lubricating oil for the compressor. A fluid path through the compressor system includes a first orifice in the housing communicating a suction tube with the first chamber, a first fluid passage communicating the first chamber with the compressor suction port, a second fluid passage communicating the compressor discharge port with the second chamber, and a second orifice in the housing communicating the second chamber with a discharge tube. By the action of the compressor, the fluid in the first chamber is maintained at compressor suction pressure and the fluid in the second chamber is maintained at compressor discharge pressure. Placement of the motor in the low pressure chamber allows operation of the compressor system in environments with high ambient temperatures without adverse effects on the motor performance. Lubricating oil is separated from the compressed fluid with a baffle in the high pressure chamber. Further oil separation can be carried out using a weighted disk secured on the shaft in the high pressure chamber. Fluid discharged from the compressor can be directed onto the rotating weighted disk, which propels oil in the fluid onto the inner wall of the housing. The separated oil drains into the oil sump.
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Citations
45 Claims
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1. A compressor system, comprising:
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a housing;
a partition within the housing defining a first chamber and a second chamber;
a motor disposed in the first chamber;
a compressor disposed within the housing operably connected to the motor;
an oil sump disposed in the second chamber;
a first orifice in the housing communicating a suction tube with the first chamber; and
a second orifice in the housing communicating the second chamber with a discharge tube, wherein fluid in the first chamber is at compressor suction pressure and fluid in the second chamber is at compressor discharge pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A compressor system, comprising:
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a housing;
a compressor disposed within the housing dividing an interior housing space into a first chamber and a second chamber;
a motor disposed in the first chamber operably connected to the compressor;
an oil sump disposed in the second chamber;
a first orifice in the housing communicating a suction tube with the first chamber; and
a second orifice in the housing communicating the second chamber with a discharge tube, wherein fluid in the first chamber is at compressor suction pressure and fluid in the second chamber is at compressor discharge pressure. - View Dependent Claims (12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45)
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18. A compressor system, comprising:
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a housing;
a partition within the housing defining a low pressure housing portion and a high pressure housing portion;
a motor in the low pressure housing portion;
a compressor in the housing operably connected to the motor;
an oil sump in the high pressure housing portion;
a first orifice in the housing communicating a suction tube with the low pressure housing portion;
a first fluid passage communicating the low pressure housing portion with a suction port of the compressor;
a second fluid passage communicating a discharge port of the compressor with the high pressure housing portion; and
a second orifice in the housing communicating the high pressure housing portion with a discharge tube, wherein oil in fluid discharged from the compressor is deposited in the oil sump.
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24. A compressor system, comprising:
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a housing;
a compressor within the housing dividing an internal housing space into a low pressure housing portion and a high pressure housing portion;
a motor in the low pressure housing portion operably connected to the compressor;
an oil sump in the high pressure housing portion;
a first orifice in the housing communicating a suction tube with the low pressure housing portion;
a first fluid passage communicating the low pressure housing portion with a suction port of the compressor;
a second fluid passage communicating a discharge port of the compressor with the high pressure housing portion; and
a second orifice in the housing communicating the high pressure housing portion with a discharge tube, wherein oil in fluid discharged from the compressor is deposited in the oil sump.
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29. A compressor system having a first chamber at suction pressure and a second chamber at discharge pressure, the system comprising:
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a housing;
a partition within the housing defining the first chamber and the second chamber;
a first orifice in the housing communicating a suction tube with the first chamber;
a second orifice in the housing communicating the second chamber with a discharge tube;
a motor disposed in the first chamber having a shaft passing through the partition;
a compressor disposed in the housing operably connected to the shaft, the compressor comprising;
a compressor inlet communicating the first chamber with a compression volume; and
a compressor outlet communicating the compression volume with the second chamber; and
an oil sump disposed in the second chamber.
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39. A compressor system having a first chamber at suction pressure and a second chamber at discharge pressure, the system comprising:
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a housing;
a compressor disposed within the housing dividing an interior housing space into the first chamber and the second chamber, the compressor comprising;
a compressor inlet communicating the first chamber with a compression volume; and
a compressor outlet communicating the compression volume with the second chamber;
a first orifice in the housing communicating a suction tube with the first chamber;
a second orifice in the housing communicating the second chamber with a discharge tube;
a motor disposed in the first chamber having a shaft driving the compressor; and
an oil sump disposed in the second chamber.
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Specification