JP2005207306A5 - - Google Patents

Claims (7)

A first rolling piston disposed within the first cylinder, the second cylinder times compaction compressor which is disposed a second rolling piston in a second cylinder, is provided in the first cylinder, the A first vane that partitions the interior of the first cylinder into a high pressure chamber and a low pressure chamber; and a second vane that is provided in the second cylinder and partitions the interior of the second cylinder into a high pressure chamber and a low pressure chamber. The first vane is provided with a spring that presses against the first rolling piston, and the second vane is not provided with a spring that presses against the second rolling piston. Cylinder rotary compressor. In the two cylinders and two rolling piston in a sealed container is disposed to overlap in the axial direction through the intermediate partition plate 2 cylinder once compaction compressor, provided on only one cylinder of the two cylinders Branching from the first suction channel, one suction connection pipe for sucking the refrigerant from outside the sealed container and guiding the refrigerant to the compression chamber in the one cylinder via the first suction channel; A second suction flow path for guiding the refrigerant sucked from the suction connection pipe into the compression chamber of the other cylinder, and a flow passage area of the first suction flow path and the second suction flow path A two-cylinder rotary compressor characterized in that a total flow path area is larger than a flow path area of the suction connecting pipe. Provided only one of the cylinders of the previous SL two cylinders, a suction connection pipe to suck the refrigerant from the outside of said closed container directing refrigerant through the first suction channel into the compression chamber within said one cylinder And a second suction channel that branches from the first suction channel and guides the refrigerant sucked from the suction connection pipe into the compression chamber of the other cylinder, and the second suction channel is provided in the second suction channel. The two-cylinder rotary compressor according to claim 1 or 2, further comprising a check valve. Provided only one of the cylinders of the previous SL two cylinders, a suction connection pipe to suck the refrigerant from the outside of said closed container directing refrigerant through the first suction channel into the compression chamber within said one cylinder A second intake flow path that branches from the first intake flow path and guides the refrigerant sucked from the suction connection pipe into the compression chamber of the other cylinder. The two-cylinder rotary compressor according to any one of claims 1 to 3, wherein a flow passage area is larger than a flow passage area of the first suction flow passage. In a two-cylinder rotary compressor in which two cylinders and two rolling pistons are arranged in an axial direction through an intermediate partition plate in an airtight container, the cylinder is provided only in one of the two cylinders, A suction connection pipe that sucks the refrigerant from outside the sealed container and guides the refrigerant to the compression chamber in the one cylinder via the first suction flow path, and branches from the first suction flow path, and the suction connection pipe A two-cylinder rotary compressor comprising a second suction flow path for guiding the refrigerant sucked more into the compression chamber of the other cylinder, and a check valve provided in the second suction flow path . In the two-cylinder rotary compressor in which two cylinders and two rolling pistons are disposed in an axial direction so as to overlap each other in an airtight container through an intermediate partition plate, only one of the two cylinders is provided, A suction connection pipe for sucking the refrigerant from outside the sealed container and guiding the refrigerant to the compression chamber in the one cylinder via the first suction flow path; and a branch from the first suction flow path; A second suction channel that guides the more sucked refrigerant into the compression chamber of the other cylinder, and the channel area of the second suction channel is larger than the channel area of the first suction channel. A two-cylinder rotary compressor characterized in that The refrigerant is an HFC refrigerant such as R410A or R407C, and the refrigerating machine oil that lubricates the compression mechanism is incompatible or weakly compatible with the HFC refrigerant such as alkylbenzene. The two-cylinder rotary compressor according to claim 6.