| CPC F04C 18/0215 (2013.01) [F04C 18/0253 (2013.01); F04C 18/0261 (2013.01); F04C 2240/30 (2013.01); F04C 2240/806 (2013.01)] | 17 Claims |
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1. A scroll compressor, comprising:
a casing having a low pressure portion and a high pressure portion;
a high/low pressure separation plate configured to separate an inner space of the casing into the low pressure portion and the high pressure portion;
a refrigerant suction pipe that communicates with the low pressure portion and a refrigerant discharge pipe that communicates with the high pressure portion;
a drive motor installed inside of the low pressure portion;
an orbiting scroll coupled to the drive motor to perform an orbiting motion;
a non-orbiting scroll engaged with the orbiting scroll to form a compression chamber; and
a refrigerant guide provided on the non-orbiting scroll having a suction guide passage to guide a refrigerant suctioned into the low pressure portion of the casing to be suctioned into the compression chamber, wherein a first end of the suction guide passage is open in a direction toward the low pressure portion of the casing that communicates with the refrigerant suction pipe, wherein a second end of the suction guide passage is open in a direction toward the compression chamber, wherein a portion between the first and second ends of the suction guide passage in a direction toward the high/low pressure separation plate is covered, wherein an outer circumferential surface of the refrigerant guide facing an inner circumferential surface of the casing is spaced apart from the inner circumferential surface of the casing and an inner circumferential surface of the high/low pressure separation plate by a predetermined distance in a radial direction, and wherein a depth of the suction guide passage in an axial direction is smaller than or equal to a wrap height of the non-orbiting wrap.
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4. A scroll compressor, comprising:
a casing;
a high/low pressure separation plate configured to separate an inner space of the casing into a low pressure portion and a high pressure portion;
a refrigerant suction pipe that communicates with the low pressure portion;
a refrigerant discharge pipe that communicates with the high pressure portion;
an orbiting scroll provided in the low pressure portion of the casing to perform an orbiting motion, and including an orbiting end plate, and an orbiting wrap that extends from the orbiting end plate, wherein the orbiting end plate is disposed adjacent to the refrigerant suction pipe;
a non-orbiting wrap provided on one side of the orbiting scroll, and including a non-orbiting end plate, a non-orbiting wrap that extends from the non-orbiting end plate and gaged with the orbiting wrap to form a compression chamber, and a non-orbiting side wall that extends from an edge of the non-orbiting end plate in an axial direction, the non-orbiting wrap having an end spaced apart from the refrigerant suction pipe;
a suction guide protrusion that extends from the non-orbiting side wall of the non-orbiting scroll toward an inner circumferential surface of the casing; and
a suction guide passage formed by an inside of the suction guide protrusion such that the low pressure portion and the compression chamber communicate with each other, wherein a back pressure chamber assembly is provided on one side surface of the non-orbiting scroll in the axial direction, wherein the non-orbiting scroll moves up and down in the axial direction by the back pressure chamber assembly during operation, wherein the suction guide passage comprises a passage inlet open toward the low pressure portion, a passage connection portion that extends from the passage inlet toward the compression chamber, and a passage outlet that provides communication between the passage connection portion and the compression chamber, and wherein a cross-section of the passage inlet and a cross-section of the passage outlet are orthogonal to each other.
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16. A scroll compressor, comprising:
a casing;
a high/low pressure separation plate configured to separate an inner space of the casing into a low pressure portion and a high pressure portion;
a refrigerant suction pipe that communicates with the low pressure portion;
a refrigerant discharge pipe that communicates with the high pressure portion;
an orbiting scroll provided in the low pressure portion of the casing to perform an orbiting motion, and including an orbiting end plate, and an orbiting wrap that extends from the orbiting end plate, wherein the orbiting end plate is disposed adjacent to the refrigerant suction pipe;
a non-orbiting wrap provided on one side of the orbiting scroll, and including a non-orbiting end plate, a non-orbiting wrap that extends from the non-orbiting end plate and engaged with the orbiting wrap to form a compression chamber, and a non-orbiting side wall that extends from an edge of the non-orbiting end plate in an axial direction, the non-orbiting wrap having an end spaced apart from the refrigerant suction pipe;
a suction guide protrusion that extends from the non-orbiting side wall of the non-orbiting scroll toward an inner circumferential surface of the casing; and
a suction guide passage formed by an inside of the suction guide protrusion such that the low pressure portion and the compression chamber communicate with each other, wherein a back pressure chamber assembly is provided on one side surface of the non-orbiting scroll in the axial direction, wherein the non-orbiting scroll moves up and down in the axial direction by the back pressure chamber assembly during operation, and wherein the refrigerant suction pipe is formed such that an outlet end thereof is closer to the inner circumferential surface of the casing than an inlet of the suction guide passage.
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