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Relation between pressure variations and noise in axial type oil piston pumps

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Abstract

Pressure variation is one of the major sources on noise emission in the axial type oil piston pumps. Therefore, it is necessary that the pressure variation characteristics of the oil hydraulic piston pumps be clarified to reduce the pump noise. Pressure variations in a cylinder at the discharge region and the pump noise were simultaneously measured with discharge pressures and rotational speeds during the pump working. To investigate the effects of the pre-compres-sion and the V-notch in the valve plate, we used the three types of valve plates. In this research, it is clear that the pressure variation characteristics of axial type oil piston pumps is deeply related to the pre-compression and to the V-notch design in valve plate. Therefore, we could reduce the pump noise by using the appropriate pre-compression angle and the notch design that are between the suction port and the discharge port in valve plate.

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Authors and Affiliations

  1. Korea Institute of Machinery & Materials, 171 Jang-dong, Yuseong-Gu, 305-600, Daejeon, Korea

    Jong-Ki Kim & Hyoung-Eui Kim

  2. Faculty of Mechanical & Aerospace System Engineering, Chonbuk National University, 561-756, Jeonju, Jeonbuk, Korea

    Jae-Youn Jung

  3. Faculty of mechanical Engineering, Kunsan National University, 573-701, Kunsan, Jeonbuk, Korea

    Seok-Hyung Oh

  4. Department of Automobile, Byuksung College, 576-711, Kimje, Jeonbuk, Korea

    Seok-Hoon Jung

Authors
  1. Jong-Ki Kim
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  2. Hyoung-Eui Kim
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  3. Jae-Youn Jung
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  4. Seok-Hyung Oh
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  5. Seok-Hoon Jung
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Correspondence to Jong-Ki Kim.

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Kim, JK., Kim, HE., Jung, JY. et al. Relation between pressure variations and noise in axial type oil piston pumps. KSME International Journal 18, 1019–1025 (2004). https://doi.org/10.1007/BF02990874

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  • DOI: https://doi.org/10.1007/BF02990874

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