FLUID EQUIPMENT SUCH AS PUMP, ACCUMULATOR AND THE LIKE

Japanese Patent JP3761754

B2

PROBLEM TO BE SOLVED: To prevent a depositing material from staying and accumulating in the liquid compartment of a pump even if transfer liquid containing a depositing material such as slurry is used.
SOLUTION: A barrier 7 such as an axially reciprocating bellows, diaphragm or the like is provided inside the pump body 1 so as to form a liquid compartment 9 between it and the inner wall 4a of the pump body 1. A suction opening 18 and a discharge opening 19 are provided on the inner wall 4a. A process to suck liquid and a process to discharge the liquid are alternately carried out by reciprocation of the barrier 7. The suction opening 18 is to spout out sucked liquid toward the circumferential wall 9a in the liquid compartment 9 by providing it on the side of the protruded tip part of a suction check valve 20 fixed so as to protrude in the liquid compartment 9 from the inner wall 4a of the pump body 1. Since the inside of the liquid compartment 9 is stirred by this circling flow, a depositing material can be prevented from depositing and condensing in the liquid compartment 9 by reducing holdup of the liquid in the liquid compartment 9.

JP3507212

NONPULSATING PUMP

Kiyoshi Nishio
Kawamura Hitoshi

JP33756499A

March 29, 2006

November 29, 1999

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Nippon Pillar Industry Co., Ltd.

F04B11/00; F04B9/123; F04B15/00; F04B43/00; F04B43/06; F04B43/08; F04B53/10; F15B1/08; (IPC1-7): F04B43/06; F04B9/123; F04B11/00; F04B43/08; F15B1/08

JP11107925A
JP53130602U
JP6299687A
JP8159016A
JP3504152A
JP1047234A
JP61262531A
JP4121462A
JP476876B2
JP617006Y2
JP10303155A
JP11270459A
JP6113002U

Shoji Suzue
Koichi Suzue

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