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Title:
ELECTROMAGNETIC PUMP
Document Type and Number:
Japanese Patent JP2017044178
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technology effective for extending a life of a diaphragm and miniaturizing a pump, in an electromagnetic pump including the diaphragm connected to an electromagnetically-driven vibrator.SOLUTION: An electromagnetic pump includes a diaphram 142, a first center disc 150 and a second center disc 160, and a vibrator 130. The first center disc 150 includes an annular first disc contact surface 151a which is opposed to an outer surface 144 of the diaphragm 142, and which is also kept into contact with the outer surface 144 when the vibrator 130 is located on a neutral position. The second center disc 160 includes an annular second disc contact face 161a opposed to an inner surface 145 of the diaphragm 142, kept into contact with the inner surface 145 when the vibrator 130 is located on the neutral position, and having an outer diameter D2b determined within a range of 1.05-1.30 times of an outer diameter D1b of the first disc contact face 152a.SELECTED DRAWING: Figure 5

Inventors:
MINOGUCHI NORIHIRO
YAMADA YUJI
Application Number:
JP2015168540A
Publication Date:
March 02, 2017
Filing Date:
August 28, 2015
Export Citation:
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Assignee:
FUJI CLEAN CO LTD
International Classes:
F04B45/04; F04B43/02; F04B43/04; F04B45/047
Attorney, Agent or Firm:
Aichi International Patent Office



 
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