Abstract

This paper studies braking of reciprocating compressor and its impact on the noise. It proposes the solution for decreasing of the reciprocating compressor noise and vibrations, which happens at stoppage. These vibrations and resulting noise are caused by the gas pressure in the cylinder, which impacts the compressor's piston and can reverse the motor at stoppage. The authors analyze conventional solutions and reports results of the experiments, which prove that conventional solutions are not applicable. Therefore, several new ideas of compressor motor braking are proposed and checked experimentally. With their help the method with better performance is selected for further study and improvements. This paper demonstrates that the proposed method totally eliminates noise and vibration peak at the stoppage of reciprocating compressor, therefore, it is recommended for use in the mass production.

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