REFRIGERANT GAS SUCTION MECHANISM OF PISTON TYPE COMPRESSOR

摘要

PURPOSE:To make simply the formation of a gas bleeder path for leading the gas from a crank chamber to the low pressure chamber side of a suction chamber, etc. CONSTITUTION:Using a rotary shaft 10, a rotary valve 26 is rotatably accommodated in a valve accommodation chamber 25 bounded by the internal circumferential surface 4b formed on the bulkhead 4a of a rear housing 4 and the center hole 1b of a cylinder block 3. Via a path 1c provided in the cylinder block 1 a refrigerant gas in a suction chamber 8 is guided to the working chamber 30 in the cylinder bore under the suction stroke by a suction guide groove 29 and a suction passage 28 formed in the mentioned rotary valve 26. A gas bleeder path 33 is formed in the rotary valve 26, and the refrigerant gas is led from the crank chamber 3 into the suction guide groove 29 via the gap (g) in a bearing 12 and the bleeder path 33.