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Title:
PERISTALTIC MOVEMENT PUMP
Document Type and Number:
Japanese Patent JPH04330390
Kind Code:
A
Abstract:

PURPOSE: To restore a constricted part after release of press to its original shape when a resilient restoration force is lowered.

CONSTITUTION: In a housing 1, a resilient deformable tube 30 is located between a rotor 20 and a support frame 21. The tube 30 is pressed by rollers 25, 25... protruded from the outer periphery of the rotor 20 to form a constricted part 31. The constricted part 31 is moved from an inflow port 10 of a tube 30 toward an outflow port 11 thereof to convey fluid. The housing 1 is brought into a closed state and the interior is brought into a negative pressure state with the aid of a suction pump 16. A pressure difference between the inside and the outside of the tube 30 is increased and restoration of the constricted part 31 is promoted.


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Inventors:
IWATA TORU
Application Number:
JP7324091A
Publication Date:
November 18, 1992
Filing Date:
April 05, 1991
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F04C5/00; F04C13/00; (IPC1-7): F04C5/00; F04C13/00
Attorney, Agent or Firm:
Hiroshi Maeda (1 person outside)



 
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