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http://dx.doi.org/10.5293/KFMA.2006.9.5.028

Performance Analysis of Orbiter Vacuum Pump  

Kim, Hyun-Jin (인천대학교 기계공학과)
Shim, Jae-Hwi (인천대학교 대학원)
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Abstract
Orbiter mechanism has been applied to vacuum pump design for small oxygen generator where low vacuum of about 200 mmHg is required. Performance of the designed vacuum pump has been numerically investigated: calculated volumetric and adiabatic efficiencies were 69.7% and 83.9%, respectively for leakage clearance of $10{\mu}m$. Total efficiency of the orbiter vacuum pump was 77.5%. At the shaft speed of 1700 rpm suction displacement volume of 6.3cc provided discharge flow at the rate of 2.3 liter/min with power consumption of 10.1Watt. Torque variation of the orbiter pump was only about 20% of that of diaphragm pump.
Keywords
Orbiter vacuum pump; Performance analysis; Efficiency; Flow rate;
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