Back to results
US 10,227,984 B2Granted
Scroll compressor
AssigneeMitsubishi Electric Corporation
InventorsShuhei Koyama, Takashi Ishigaki
Life of this patent
Estimating the term…
Abstract
A scroll compressor in which a winding angle of a first lap is larger than a winding angle of a second lap, a plurality of compression chambers are formed between the first lap and the second lap, the compression chambers include at least a first compression chamber and a second compression chamber that has a volume smaller than the first compression chamber, a first base plate is provided with a first injection port 16a for injection of refrigerant into the first compression chamber and a second injection port for injection of refrigerant into the second compression chamber, and an injection flow rate of the second injection port is higher than an injection flow rate of the first injection port.
Claims13
A scroll compressor comprising:
- a shell configured as a hermetic container forming an enclosure;
- a compression mechanism section provided in the shell and configured to compress refrigerant;
- and
- an injection pipe configured to inject the refrigerant to inside of the shell,
- the compression mechanism section including a stationary scroll and an orbiting scroll, the stationary scroll including a first base plate and a first wrap, the first wrap being provided to erect along an involute curve on one surface of the first base plate, the orbiting scroll including a second base plate and a second wrap, the second wrap being provided to erect along an involute curve on one surface of the second base plate,
- the first wrap having a winding angle larger than a winding angle of the second wrap,
- the first wrap and the second wrap being configured to form a plurality of compression chambers between the first wrap and the second wrap, each of the compression chambers having a volume smaller than volumes of compression chambers formed radially outward thereof,
- the compression chambers including at least a first compression chamber and a second compression chamber, the second compression chamber having a volume smaller than a volume of the first compression chamber,
- the first base plate being provided with a first injection port through which the refrigerant injected from the injection pipe into the shell passes in midway of being guided into the first compression chamber and a second injection port through which the refrigerant injected from the injection pipe into the shell passes in midway of being guided into the second compression chamber, and
- the second injection port being configured to provide an injection flow rate higher than an injection flow rate of the first injection port.
7 more elements
A scroll compressor comprising:
- a shell configured as a hermetic container forming an enclosure;
- a compression mechanism section provided in the shell and configured to compress refrigerant;
- and
- an injection pipe configured to inject the refrigerant to inside of the shell,
- the compression mechanism section including a stationary scroll and an orbiting scroll, the stationary scroll including a first base plate and a first wrap, the first wrap being provided to erect along an involute curve on one surface of the first base plate, the orbiting scroll including a second base plate and a second wrap, the second wrap being provided to erect along an involute curve on one surface of the second base plate,
- the first wrap having a winding angle larger than a winding angle of the second wrap,
- the first wrap and the second wrap being configured to form a plurality of compression chambers between the first wrap and the second wrap, each of the compression chambers having a volume smaller than volumes of compression chambers formed radially outward thereof,
- the compression chambers including at least a first compression chamber and a second compression chamber, the second compression chamber having a volume smaller than a volume of the first compression chamber,
- the first base plate being provided with a first injection port through which the refrigerant injected from the injection pipe into the shell passes in midway of being guided into the first compression chamber and a second injection port through which the refrigerant injected from the injection pipe into the shell passes in midway of being guided into the second compression chamber, and
- the second injection port being configured to provide an injection flow rate higher than an injection flow rate of the first injection port,
- wherein the second injection port comprises a plurality of second injection ports, the first injection port comprises one or more first injection ports, and a number of the second injection ports is larger than a number of the first injection ports.
8 more elements
Dependencies are inferred from the claim text.