GAS COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To reduce pressure pulsation occurring in a discharge chamber of a gas compressor having a plurality of compression space in a cylinder. SOLUTION: The discharge chamber 94 is arranged in a main bearing 8 for supporting a drive shaft 6. A delivery valve device 61 (62) for opening/closing a discharge port 29 (31) opening to a cylinder 15 of a compression portion 3 is disposed to the discharge chamber 94. In the constitution, a discharge damper chamber 96 communicating with the discharge chamber 94 is arranged on the other side of the cylinder 15 to be opposite to the main bearing 8. Therefore, the pressure pulsation occurring in the discharge chamber 94 is damped to reduce vibrations of a discharge pipeline outside the compressor.