| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve operation efficiency in a single screw compressor, by increasing quantity of fluid compressed by flowing in a fluid chamber, in the single screw compressor. <P>SOLUTION: In this single screw compressor, a gate (51) of a gate rotor (50) is meshed with a spiral groove (41) of a screw rotor (40). A suction opening (36) is formed on a cylindrical wall (30) for covering the outer peripheral surface of the screw rotor (40). When the screw rotor (40) rotates, a spiral groove (41a) forming the fluid chamber (23a) in a suction stroke, moves toward the cylindrical wall (30) from the suction opening (36). The fluid chamber (23a) in the suction stroke is partitioned from a low pressure space by a gate (51a) entering the spiral groove (41a) forming its fluid chamber. An opening side edge (37) of the cylindrical wall (30) is formed in a shape of being covered with the cylindrical wall (30) before the fluid chamber (23a) in the suction stroke is partitioned from the low pressure space with the gate (51a). <P>COPYRIGHT: (C)2011,JPO&INPIT |
