Title:
往復動ポンプ
Document Type and Number:
Japanese Patent JP6744427
Kind Code:
B2
Abstract:
At least one rib 9c, 21c extending in a direction of connecting with a valve cartridge 30 is provided to the inner sides of each of a second connection port 9 of a pump head 5 and a third connection port 21 of a first connecting adapter 20A, and at least one slit 41 which extends in the connecting direction and into which the ribs 9c, 21c are loosely inserted is provided to the lower outer periphery of the valve cartridge 30. The relationship (id2b, id3b) > od1t > (id1, id4) > od2 > (id2t, id3t) > od1b is satisfied, where the inside diameter of a first connection port 8 is id1, the inside diameter of the second connection port 9 is id2b, the inscribed diameter at the top of the rib 9c of the second connection port 9 is id2t, the inside diameter of the third connection port 21 is id3b, the inscribed diameter at the top of the rib 21c of the third connection port 21 is id3t, the inside diameter of a fourth connection port 23 is id4, the outside diameter of the upper outer periphery of the valve cartridge 30 is od1t, the outside diameter of the bottom of the slit 41 at the lower outer periphery is od1b, and the outside diameter of the upper outer periphery of the valve cartridge 30 is od2.
Inventors:
Yoshio Ogawa
Application Number:
JP2018556124A
Publication Date:
August 19, 2020
Filing Date:
December 15, 2016
Export Citation:
Assignee:
Iwaki Co., Ltd.
International Classes:
F16K27/00; F04B39/14; F04B43/02; F04B45/04; F04B53/22; F16K1/14
Domestic Patent References:
| JP2013015133A | ||||
| JP2012525961A | ||||
| JP2010127273A | ||||
| JP61011473A |
Attorney, Agent or Firm:
Kisaragi International Patent Business Corporation