Title:
微細気泡発生ノズル本体
Document Type and Number:
Japanese Patent JP7395152
Kind Code:
B2
Abstract:
To provide a technology in which fine air bubbles can be contained in a large quantity into gas dissolution pressurized water being made to flow out into a flow-out place.SOLUTION: A fine bubble generation nozzle body includes: a decompression tube for making gas dissolution pressurized water pass from an upstream end toward a downstream end; an inlet port opened at the upstream end of the decompression tube; an inlet side opening provided at the downstream side from the inlet port; and an outlet side opening opened at the downstream end of the decompression tube. An opening area of the inlet side opening is smaller than the opening area of the inlet port, and the opening area of the outlet side opening is larger than the opening area of the inlet side opening. A speed reduction part for reducing a flow rate of the gas dissolution pressurized water passing through the inside of the decompression tube is formed at least in a portion of an inner circumferential wall of a first portion between the inlet port and the inlet side opening and an inner circumferential wall of a second portion at the downstream side from the inlet side opening and in the vicinity of the inlet side opening of the decompression tube.SELECTED DRAWING: Figure 2
Inventors:
岩▲崎▼ 拓也
Takashi Hata
Yusuke Nishiuchi
Takashi Hata
Yusuke Nishiuchi
Application Number:
JP2020018290A
Publication Date:
December 11, 2023
Filing Date:
February 05, 2020
Export Citation:
Assignee:
Rinnai Corporation
National Institute of Technology
National Institute of Technology
International Classes:
A47K3/00; B05B1/02
Domestic Patent References:
| JP2010000402A | ||||
| JP2010075838A | ||||
| JP2008290051A |
Foreign References:
| US20130168879 | ||||
| KR20090010385U |
Attorney, Agent or Firm:
Patent Attorney Corporation Kaiyu International Patent Office