JP2007120354A5 - - Google Patents

Claims (5)

A rotary low-pressure side compressor that compresses the refrigerant, a rotary high-pressure compressor that compresses the refrigerant in an opposite phase to the compression process of the low-pressure compressor, and a refrigerant outlet of the low-pressure compressor In a rotary compressor comprising an intermediate container communicated with the refrigerant suction port of the high-pressure side compression unit,
In the intermediate container, an internal space is partitioned into at least two spaces by a partition member, and a refrigerant discharge port of the low-pressure side compression unit and a refrigerant suction port of the high-pressure side compression unit are communicated with one space, and the partition member A rotary compressor is formed by forming a refrigerant flow path connecting the two spaces. The intermediate container includes a disk-shaped end plate portion, an outer wall portion that stands in an axial direction from a peripheral portion of the end plate portion, and divides a circumferential direction of the internal space, and an axial direction at a center of the end plate portion. A cylindrical sub-bearing erected on the end plate, and a closing plate that faces the end plate portion and closes the opening on the front end side of the outer wall portion, and the partition member extends from the sub-bearing to the outer wall portion . It is assumed that the beam is erected on the plate surface of the end plate portion, and the beam is formed so that the axial dimension from the end plate portion is smaller than the outer wall portion, and between the block plate and The rotary compressor according to claim 1, wherein the refrigerant flow path is formed. The auxiliary bearing, the outer diameter of the end plate portion side is formed with a larger diameter than the outer diameter of the closure plate side, the partition member is formed axial dimension from the end plate portion by the diameter The rotary compressor according to claim 2, wherein the rotary compressor is smaller than the formed portion .   The partition member includes a parallel part parallel to the plate surface of the end plate part, an inner peripheral side taper part inclined toward the auxiliary bearing side from the inner peripheral edge of the parallel part toward the axial direction, and an outer part of the parallel part. An outer peripheral taper portion that is inclined toward the outer wall portion side in the axial direction from the periphery is formed on the tip side, and the refrigerant flow path includes the parallel portion, the inner peripheral taper portion, and the outer peripheral taper portion. 4. The rotary compressor according to claim 2, wherein the rotary compressor has a trapezoidal cross section defined by the blocking plate. 5. The intermediate container is provided in the other space in which a reinforcing beam standing on a plate surface of the end plate portion extending from the auxiliary bearing to the outer wall portion is partitioned by the partition member. The rotary compressor according to any one of claims 2 to 4, wherein the beam has an axial dimension from the end plate portion smaller than that of the partition member.