Chattering Noise Mechanism and Vane Behavior of a Rotary Compressor

Paper #:
  • 2016-01-1311

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-1311
Citation:
Kanuma, T., Endo, K., Maruoka, F., Iijima, H. et al., "Chattering Noise Mechanism and Vane Behavior of a Rotary Compressor," SAE Technical Paper 2016-01-1311, 2016, doi:10.4271/2016-01-1311.
Pages:
5
Abstract:
1The vane-type rotary compressor of a heating, ventilating, and air conditioning system (HVAC system) is simple and compact but may emit noise due to the collision between the vanes and the cylinder wall. Several studies have been conducted on this chattering noise, with a focus on the noise associated with the compressor revolution speed, temperature, suction pressure, and exhaust pressure. However, such investigations are not sufficient to reveal the behavior of the vane movement in its entirety. To minimize the chattering noise, the details of the mechanism of such vane-operating noise must be investigated by analyzing the behavior of the vanes as a function of time. The vanes move according to the balance between the front and rear pressures. This report describes a novel visualization technique with which to monitor the motion of a vane under given operating conditions. In addition, a method of measuring the pressure affecting the movement of the vanes is discussed. These approaches are used to clarify the vane chattering mechanism. The vane pulls back from the wall due to the withdrawal force and hits the surface with the increased oil pressure at the back of the vane. This phenomenon was visualized and will be explained with an equation of motion from measured representative data. This study examines noise reduction.
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