| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary compressor where a piston is moved with a difference in pressure on a piston to prevent damage to the piston.SOLUTION: A front head (52) has a first groove (71) formed in an opposite face (P1) to a cylinder (51) at the further outer periphery side than an elastic main bearing (70) so that the elastic main bearing (70) for a main shaft (31) is formed on the inner peripheral face. A rear head (53) has a second groove (81) is formed in an opposite face (P2) to the cylinder (51) at the further outer periphery side than an elastic sub bearing (80) so that the elastic sub bearing (80) for a sub shaft (37) is formed on the inner peripheral face. The diameter of the sub shaft (37) is smaller than the diameter of the main shaft (31), and a shortest distance (L1) from an axial core (C1) of each of the main shaft (31) and the sub shaft (37) to an outer periphery side edge (71b) of the first groove (71) is equal to a shortest distance (L6) from the axial core (C1) to an outer periphery side edge (81b) of the second groove (81).SELECTED DRAWING: Figure 4 |
