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Title:
LIQUID FEEDING LINE PUMP
Document Type and Number:
Japanese Patent JPH11303788
Kind Code:
A
Abstract:

To prevent contamination of chemicals to be transferred by a liquid feeding line pump, and improve its maintenance property.

In an in-line screw pump for transferring liquid, a rotor 30 is radially supported by means of magnetic bearings 15 arranged on both ends of the rotor 30. The rotor 30 is axially supported by controlling type magnetic bearings 16 each having a conical control surfaced faced to a conical axial disc 35 attached to the end face of the rotor 30. The rotor 30 is magnetically floated and supported in a non-contact form by the bearings 15, 16. The rotor 30 is rotated without contact with the static side. Liquid is transferred by pumping function of a screw groove 33 formed on an outer periphery of the rotor 30.


Inventors:
Yamamoto, Juichi
Nakazawa, Toshiharu
Application Number:
JP1998000248118
Publication Date:
November 02, 1999
Filing Date:
September 02, 1998
Export Citation:
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Assignee:
EBARA CORP
International Classes:
F04D29/046; F04B19/12; F04D3/02; F04D13/06; F04D29/04; F04D29/048; F16C32/04; (IPC1-7): F04D13/06; F04D29/04; F16C32/04
Attorney, Agent or Firm:
渡邉 勇 (外2名)



 
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