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Title:
GEAR PUMP AND METHOD FOR USING THE SAME
Document Type and Number:
Japanese Patent JPH07279861
Kind Code:
A
Abstract:

PURPOSE: To prevent accumulations subjected to long-term thermal stress from being uncontrollably dissociated and contaminating subjects to be conveyed and to facilitate a pump cleaning process by forming cut sections from continuously curved surfaces.

CONSTITUTION: The meshing areas of rotors of a product duct 1 are located within a cutting plane E and are symmetrical with respect to a plane passing through an axis B and a plane passing through the axis of the second rotor. One volume is expanded into the product duct wall 3 of the product duct 1 where the rotors mesh with each other, both on the inflow side of an inflow duct 1a and on the outlet side of an outlet duct 1b. Cut sections 6a1, 6a2, 6b1, 6b2 are arranged in symmetry with respect to a plane extending through both axes of a rotor shaft and are machined to have the form of ball segments, so that the cut sections define paired ball segments or a continuously curved three-dimensional plane when a pump is assembled. As a result, accumulations are prevented from contaminating subjects to be conveyed and the pump can be cleaned easily.


Inventors:
ROOGAA SHIYUTEERU
PEETAA BURUUME
MARUKO BENETSUTEI
Application Number:
JP1995000081365
Publication Date:
October 27, 1995
Filing Date:
April 06, 1995
Export Citation:
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Assignee:
MAAG PUMP SYSTEMS AG
International Classes:
F04C2/12; F04C2/08; F04C13/00; (IPC1-7): F04C2/12; F04C13/00
Attorney, Agent or Firm:
矢野 敏雄 (外2名)



 
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