Title:
PUMP
Document Type and Number:
Japanese Patent JP2018040254
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pump capable of suppressing sudden valve opening of a lead valve.SOLUTION: A pump 1 is provided with: a housing 2 having a pump chamber P, and discharge holes 201b1-201b3 for discharging working fluid from the pump chamber P to the outside; and a lead valve 5 having a valve 50 fixed to the housing 2, and capable of elastically sealing the discharge holes 201b1-201b3 from the outside, and a stopper 51 capable of regulating an elastic deformation amount of the valve 50 from the outside. A plurality of discharge holes 201b1-201b3 are arranged in the housing 2 by using a direction connecting a fixed end D1 and a free end D2 of the valve 50 as a longitudinal direction, and satisfy at least one condition of the following (A) and (B). (A) Centroids B1-B3 of the plurality of discharge holes 201b1-201b3 are shifted from one another in the longitudinal direction. (B) The centroids B1-B3 of the plurality of discharge holes 201b1-201b3 are shifted from one another in a compression direction of the working fluid in the pump chamber P.SELECTED DRAWING: Figure 2
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Inventors:
SUZUKI YUJI
Application Number:
JP2016172476A
Publication Date:
March 15, 2018
Filing Date:
September 05, 2016
Export Citation:
Assignee:
TAIHO KOGYO CO LTD
International Classes:
F04C18/344; F04C29/12
Attorney, Agent or Firm:
Tomoaki Higashiguchi
Shindo Motoko
Kudo snow
Shindo Motoko
Kudo snow
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