• Title, Summary, Keyword: Flow Rate Irregularity

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Optimal Design of Rotor Profile of Internal Gear Pump for Noise Reduction (내접형 기어펌프용 로터의 소음저감을 위한 치형 최적설계)

  • Bae, Jun Ho;Bae, Won Byong;Joo, Ung Tak;Kim, Chul
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.38 no.3
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    • pp.295-302
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    • 2014
  • An internal gear pump is required to improve the flow rate and noise. Furthermore, such pumps are durable and small in size. In this study, equations of the rotor shape with multiple profiles (ellipse 1-involute-ellipse 2) were derived, and relevant performance parameters (pressure angle, irregularity, and specific sliding) of the internal gear pump to noise were predicted and compared. Rotor profiles and performance parameters were obtained by a prediction algorithm for theoretical analysis, and the effects between the design parameters and the performance parameters were analyzed. Based on the analysis results of the effects, an optimal design of the rotor profile was proposed, and a noise test of the prototype was performed to evaluate the reliability of the design.