| 摘要 |
<p>PROBLEM TO BE SOLVED: To secure the smooth reciprocating motion of a piston by a simple structure inexpensively, by forming to a piston main body a through part which is passed through along the rotational direction of a swash plate. SOLUTION: A variable displacement swash plate compressor 10 has a cylinder block 12 in which a cylinder chamber 12a to which a piston 32 is stored to be freely reciprocated is formed, and a swash plate 43 rotated accompanied by the rotation of a driving shaft 11. The piston 32 has a piston main body 32a reciprocated in the cylinder chamber 12a, a piston base end 32b to which the periphery of the swash plate 43 is connected through a shoe 23, and a piston head 32c connected to the piston main body 32a through a shaft. A through part 39 passed through along the rotational direction of the swash plate 43 is formed in the piston main body 32a. Here, lube oil included in a refrigerant is supplied toward the inner wall surface of the cylinder chamber 12a through the through part 39, therefore, the smooth reciprocating motion of the piston 32 can be secured for a long period of time.</p> |
