LUBRICATING STRUCTURE FOR FIXED DISPLACEMENT PISTON TYPE COMPRESSOR

PROBLEM TO BE SOLVED: To improve lubricity in a fixed displacement piston type compressor using a rotary valve. SOLUTION: Introduction passages 31, 32 and a supply passage 211 are formed in a rotary shaft 21. The supply passage 211 communicates to a suction chamber 142 and the introduction passages 31, 32 communicate to the supply passage 211. Suction passages 33, 34 are formed in cylinder block to establish communication between cylinder bores 27, 28 and shaft bores 111, 121. The introduction passages 31, 32 intermittently communicate to the suction passages 33, 34 with accompanying rotation of the rotary shaft 21. A communication hole 212 is formed on a circumference surface of the rotary shaft 212. The communication hole 212 establishes communication between a swash plate chamber 24 and the supply passage 211. COPYRIGHT: (C)2007,JPO&INPIT