2 STAGE ROTARY COMPRESSOR
First Claim
1. A 2 stage rotary compressor, comprising:
- a hermetic container;
a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly, a middle plate and a high pressure compression assembly are successively stacked from any one of upper and lower portions;
a first discharge port for discharging middle pressure refrigerant compressed in the low pressure compression assembly;
a second discharge port for discharging high pressure refrigerant compressed in the high pressure compression assembly; and
a third discharge port positioned at any one of the upper and lower portions of the 2 stage compression assembly to discharge high pressure refrigerant compressed in the 2 stage compression assembly to the hermetic container, wherein an area of the third discharge port is larger than 0.5 times of an area of the first discharge port and smaller than 1.0 times thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a 2 stage rotary compressor (100) including a hermetic container (101), a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly (120), a middle plate (130) and a high pressure compression assembly (140) are successively stacked from any one of upper and lower portions, a first discharge port (124) for discharging middle pressure refrigerant compressed in the low pressure compression assembly (120) a second discharge port (162p) for discharging high pressure refrigerant compressed in the high pressure compression assembly (130) and a third discharge port (172p) positioned at any one of the upper and lower portions of the 2 stage compression assembly to discharge high pressure refrigerant compressed in the 2 stage compression assembly to the hermetic container (101), wherein an area of the third discharge port (172p) is larger than 0.5 times of an area of the first discharge port and smaller than 1.0 times thereof. As a volume flow of refrigerant compressed in the low pressure compression assembly (120) determines a volume flow of refrigerant compressed in the entire 2 stage compression assembly, a size of the third discharge port discharging refrigerant compressed in the 2 stage compression assembly is preferably optimized at a ratio with respect to a size of the first discharge port (127). Therefore, the size of the third discharge port (172p) can be optimized to suppress noise of the compressor.
9 Citations
20 Claims
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1. A 2 stage rotary compressor, comprising:
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a hermetic container; a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly, a middle plate and a high pressure compression assembly are successively stacked from any one of upper and lower portions; a first discharge port for discharging middle pressure refrigerant compressed in the low pressure compression assembly;
a second discharge port for discharging high pressure refrigerant compressed in the high pressure compression assembly; anda third discharge port positioned at any one of the upper and lower portions of the 2 stage compression assembly to discharge high pressure refrigerant compressed in the 2 stage compression assembly to the hermetic container, wherein an area of the third discharge port is larger than 0.5 times of an area of the first discharge port and smaller than 1.0 times thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. A 2 stage rotary compressor, comprising:
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a hermetic container; a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly, a middle plate and a high pressure compression assembly are successively stacked from any one of upper and lower portions; a first discharge port for discharging middle pressure refrigerant compressed in the low pressure compression assembly; a second discharge port for discharging high pressure refrigerant compressed in the high pressure compression assembly; and a third discharge port positioned at any one of the upper and lower portions of the 2 stage compression assembly to discharge high pressure refrigerant compressed in the 2 stage compression assembly to the hermetic container, wherein an area of the third discharge port is larger than 0.5 times of an area of the second discharge port and smaller than 1.0 times thereof.
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11. A 2 stage rotary compressor, comprising:
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a hermetic container; a low pressure cylinder provided in the hermetic container to define a space of compressing low pressure refrigerant; a high pressure cylinder provided in the hermetic container to define a space of compressing middle pressure refrigerant compressed in the low pressure cylinder; a muffler formed in the shape of a cap and coupled to the high pressure cylinder to reduce noise of compressed high pressure refrigerant; a middle pressure discharge hole formed in the low pressure cylinder to discharge refrigerant compressed to a middle pressure; and a high pressure discharge hole formed in the muffler, and larger than 0.5 times of an area of the middle pressure discharge hole and smaller than 1.0 times thereof. - View Dependent Claims (12, 13, 14, 15)
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16. A 2 stage rotary compressor, comprising:
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a hermetic container; a low pressure cylinder provided in the hermetic container to define a space of compressing low pressure refrigerant; a high pressure cylinder provided in the hermetic container to define a space of compressing middle pressure refrigerant compressed in the low pressure cylinder; a muffler formed in the shape of a cap and coupled to the high pressure cylinder to reduce noise of compressed high pressure refrigerant; a high pressure discharge hole formed in the high pressure cylinder to discharge refrigerant compressed to a high pressure; and a high pressure discharge hole formed in the muffler, and larger than 0.5 times of an area of the high pressure discharge hole formed in the high pressure cylinder and smaller than 1.0 times thereof. - View Dependent Claims (17, 18, 19, 20)
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Specification