Vane Jumping and its Prevention in a Dual-vane Pump

Vane pumps have been used mainly at medium rotational speeds and system pressures.By using dual-vanes instead of the usual single vanes, it is possible to operate them under more severe conditions. In this paper, we have focused on the jumping phenomenon that causes dual-vanes to detach from the cam...

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Bibliographic Details
Published inTRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Vol. 33; no. 7; pp. 156 - 161
Main Authors NISHIUMI, Takao, KONAMI, Shizurou, MAEDA, Teruyuki
Format Journal Article
LanguageEnglish
Japanese
Published Tokyo The Japan Fluid Power System Society 2002
Japan Science and Technology Agency
Subjects
Dual-vane
Fluid transient
Hydraulic system
Vane pump
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Summary:Vane pumps have been used mainly at medium rotational speeds and system pressures.By using dual-vanes instead of the usual single vanes, it is possible to operate them under more severe conditions. In this paper, we have focused on the jumping phenomenon that causes dual-vanes to detach from the cam ring during the compression process. Vane jumping was taken into consideration when the motion of the dual-vane and transient pressure of the pumping chamber were modeled. Measurement of the dual-vane movement and chamber pressure was conducted in order to compare it with the simulation results. A technique using an additional chamber was introduced to prevent the vane jumping.
ISSN:1880-3121
1349-7022
DOI:10.5739/jfps.33.156