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US 10,094,379 B2Granted
Scroll compressor
AssigneeHanon Systems
InventorsJong Bo Won, Il Young Park, Kweon Soo Lim
Life of this patent
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Abstract
Disclosed herein is a scroll compressor in which refrigerant is compressed in a compression chamber while the volume of the compression chamber is gradually decreased due to relative rotation of a fixed scroll and an orbiting scroll. In accordance with the disclosure, the scroll compressor is provided in which a pressure in a back-pressure chamber is managed in connection with a discharge refrigerant pressure so that the orbiting scroll is supported by the pressure in the back-pressure chamber without a power loss or an inner leak in an overall pressure section of a scroll.
Claims13
A scroll compressor comprising:
- a housing including a suction port and a discharge port formed in an outer peripheral surface of the housing, the housing defining a suction chamber and a discharge chamber, the suction chamber communicating with the suction port and the discharge chamber communicating with the discharge port;
- a fixed scroll disposed in a first portion of the housing and having an outlet formed therein communicating with the discharge chamber;
- a drive motor mounted to a second portion of the housing including a rotary shaft coupled thereto, wherein the drive motor is disposed within the suction chamber;
- an orbiting scroll eccentrically coupled to an end of the rotary shaft and configured to revolve about the fixed scroll, the orbiting scroll cooperating with the fixed scroll to define a plurality of compression chambers;
- a back-pressure chamber defined by the housing between the orbiting scroll and the rotary shaft, the back-pressure chamber configured to urge the orbiting scroll towards the fixed scroll;
- and
- a back-pressure regulation passage comprising a first passage through which the discharge chamber communicates with the back-pressure chamber and a second passage through which the back-pressure chamber communicates with the suction chamber;
- a check valve disposed in the first passage, the check valve configured to selectively provide fluid communication between the discharge chamber and the back-pressure chamber;
- and
- an orifice formed in the second passage, the orifice configured to continuously provide fluid communication between the back-pressure chamber and the suction chamber.
7 more elements
A scroll compressor comprising:
- a housing including a suction port and a discharge port spaced apart from each other and formed in an outer peripheral surface of the housing, the housing including a first portion defining a discharge chamber and a second portion defining a suction chamber, the suction chamber communicating with the suction port and the discharge chamber communicating with the discharge port;
- a fixed scroll disposed in the first portion of the housing and having an outlet formed therein communicating with the discharge chamber, the outlet formed at a center of the fixed scroll;
- a drive motor mounted to the second portion of the housing and including a rotary shaft coupled thereto, wherein the drive motor is disposed within the suction chamber;
- an orbiting scroll eccentrically coupled to an end of the rotary shaft and configured to revolve around the fixed scroll, the orbiting scroll cooperating with the fixed scroll to define a plurality of compression chambers;
- a back-pressure chamber defined by the housing between the orbiting scroll and the rotary shaft, the back-pressure chamber configured to support the orbiting scroll towards the fixed scroll;
- and
- a back-pressure regulation passage comprising a first passage through which the discharge chamber communicates with the back-pressure chamber and a second passage through which the back-pressure chamber communicates with the suction chamber, wherein the first passage comprises a primary passage formed through a portion of the fixed scroll disposed in the first portion of the housing and a secondary passage formed in the second portion of the housing and communicating with the primary passage.
4 more elements
Dependencies are inferred from the claim text.