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US 12,631,178 B2Granted
Scroll compressor having back pressure circulation structure
AssigneeHyundai Wia Corporation
InventorMin Kuk Cho
Life of this patent
Estimating the term…
Abstract
A scroll compressor for an air conditioning system of a vehicle includes a back pressure circulation structure. Oil and refrigerant discharged from a back pressure chamber to maintain back pressure are directly emitted toward a scroll to ensure circulation of refrigerant. The size of a package incorporating the scroll compressor is reduced through structural simplification.
Claims11
A scroll compressor having a back pressure circulation structure, the scroll compressor comprising:
- a motor housing;
- a main frame seated on the motor housing;
- a drive shaft connected to a motor provided inside the motor housing to rotate using rotational force received from the motor;
- an orbiting scroll provided on the main frame, connected to the drive shaft in an orbiting manner, and comprising a spiral orbiting lap;
- a back pressure chamber provided on one side of the orbiting scroll within the main frame;
- a fixed scroll comprising a spiral fixed lap configured to match and engage with the orbiting lap of the orbiting scroll;
- and
- a recovery flow path provided in the main frame and extending from the back pressure chamber to communicate with the fixed scroll,
- wherein the fixed scroll comprises a decompression part having a communication hole spaced apart from the fixed lap and communicating with the recovery flow path, a flow path extending from the communication hole, and an open hole provided at a distal end of the flow path to be open toward the orbiting lap and the fixed lap,
- wherein in the decompression part, the flow path is disposed outside and spaced apart from the fixed lap and is curved along the fixed lap, and
- wherein in the decompression part, a plurality of open holes are provided, one of the plurality of open holes is configured to be open toward the orbiting lap in an outward direction of the orbiting lap, and another of the plurality of open holes is configured to be open toward the fixed lap in an inward direction of the fixed lap.
8 more elements
Dependencies are inferred from the claim text.