The Lubrication characteristics of the vane tip under pressure boundary condition of oil hydraulic vane pump |
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| Authors: | Ihn-Sung Cho Seok-Hyung Oh Kyu-Keun Song Jae-Youn Jung |
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| Affiliation: | (1) Division of Mechanical & Aerospace System Engineering, Chonbuk National University, #664-14, 1 Ga, Duckjin-dong, Duckjin-ku, Jeonju, 561-756 Jeonbuk, Korea;(2) Faculty of Mechanical Engineering, Kunsan National University, san 68, Miryong-dong, Kunsan, 573-701 Jeonbuk, Korea;(3) Division of Mechanical & Aerospace System Engineering and RCIT, Chonbuk National University, #664-14, 1 Ga, Duckjin-dong, Duckjin-ku, Jeonju, 561-756 Jeonbuk, Korea |
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| Abstract: | The Lubrication Mode of line contacts between the vane and the camring in an oil hydraulic vane pump has been investigated. First, the variations of the radial force of a vane were calculated from previous measurements of dynamic internal pressure in four chambers surrounding a vane. Next, the lubrication modes were distinguished with Hooke’s chart, which is an improvement over Johnson’s chart. Finally, the influence of the boundary conditions in the lubrication region on the fluid film lubrication was examined by calculating the film pressure distributions. The results showed that the lubrication mode of the vane tip exists in the rigidvariable-viscosity region, and that discharge pressure higher than 7 MPa greatly affects the oil film pressure in the small and the large arc section because of the Piezo-viscous effect. |
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| Keywords: | Inlet Pressure Outlet Pressure Vane Pump Vane Tip Line Contact Lubrication Mode |
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