Title:
スクリーンの自動清掃機構とこれを備えた減圧弁
Document Type and Number:
Japanese Patent JP7333959
Kind Code:
B2
Abstract:
To provide a screen automatic cleaning mechanism of a valve device which prevents deposition of scales, and to provide a pressure reduction valve using the screen automatic cleaning mechanism.SOLUTION: A screen automatic cleaning mechanism includes: a valve body 32 which opens or closes an area between an inflow passage and an outflow passage of a fluid; a cylindrical screen 66 which is disposed in the inflow passage 62 and removes foreign objects in the fluid; and an annular brush unit 90 which sweeps and drops the foreign objects adhering to the screen 66. An axis of the brush unit 90 is arranged in a vertical direction. The brush unit 90 is provided with grooves 93 or blades 95 which allow flow of the fluid, which passes through the inflow passage 62 when the valve body 32 opens, to rotate the brush unit around its axis and move in an axial direction.SELECTED DRAWING: Figure 5
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Inventors:
Yukio Kitamura
Application Number:
JP2020202674A
Publication Date:
August 28, 2023
Filing Date:
December 07, 2020
Export Citation:
Assignee:
Miyawaki Co., Ltd.
International Classes:
F16K51/00; F16K17/30; G05D16/16
Domestic Patent References:
| JP1173808U | ||||
| JP2014108U |
Foreign References:
| US5131427 |
Attorney, Agent or Firm:
Shuji Sugimoto
Takero Tsutsumi
Kenichi Nakata
Daisuke Kaneko
Takero Tsutsumi
Kenichi Nakata
Daisuke Kaneko