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Title:
FINE BUBBLE GENERATOR
Document Type and Number:
Japanese Patent JP2023147980
Kind Code:
A
Abstract:
To generate favorable fine bubble regardless of a pipe diameter.SOLUTION: A fine bubble generator comprises: a first tapered portion 12 disposed on the inner surface of a flow passage forming space C and diametrically reduced toward a downstream side; a second tapered portion 15 diametrically enlarged toward its downstream side; an upstream side member 30 disposed facing the first tapered portion 12 the second tapered portion 15; and a downstream side member 40 disposed on the more downstream side than the upstream side member 30. The upstream side member 30 comprises on its outer surface, an upstream side outer periphery tapered portion 31 diametrically enlarged toward the downstream side, and constitutes a first flow passage portion 51 between the upstream side member 30 and the first tapered portion 12 and constitutes a second flow passage portion 52 between the upstream side member 30 and the second tapered portion 15. The downstream side member 40 comprises on its outer surface, a downstream side outer periphery tapered portion 43 diametrically enlarged toward the downstream side, and constitutes a fourth flow passage portion 54 between the downstream side member 40 and the second tapered portion 15. A third flow passage portion 53 having a large cross-sectional area and generating negative pressure in the flow passage is arranged between the second flow passage portion 52 and the fourth flow passage portion 54.SELECTED DRAWING: Figure 1

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Inventors:
YUJI MINORU
Application Number:
JP2022055793A
Publication Date:
October 13, 2023
Filing Date:
March 30, 2022
Export Citation:
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Assignee:
KURIMOTO LTD
International Classes:
B01F23/23; B01F23/2373; B01F25/10; B01F25/312; B01F25/45
Attorney, Agent or Firm:
Naoya Kamada
Bunji Kamada
Yaichiro Nakatani
Masanori Akatsuka
Takashi Shimizu



 
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