The burst strength of rotary compressor pressure vessel directly affects the safety. Therefore, it is mandatory to ensure the strength of the pressure vessel. Major factors that determine the burst pressure of pressure vessel are stress concentration around the suction and discharge hole as well as its shape and thickness. In this study, stress concentration of the pressure vessel is investigated by means of finite element analysis. Moreover, actual hydrostatic burst test is carried out to confirm the burst pressure. Burst pressure of the pressure vessel can be increased by relieving the stress concentration around the suction and discharge hole.
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