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公开(公告)号：US11794152B2
公开(公告)日：2023-10-24
申请号：US17363686
申请日：2021-06-30
申请人： Shibata Corporation
IPC分类号： B01F23/00 , B01F23/231 , B01F23/20 , B01F25/40 , B01F25/431 , B01F25/432 , B01F25/433 , F15D1/02
CPC分类号： B01F23/23105 , B01F23/20 , B01F25/40 , B01F23/23112 , B01F25/4316 , B01F25/4323 , B01F25/4335 , F15D1/025
摘要： The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.
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公开(公告)号：US11077411B2
公开(公告)日：2021-08-03
申请号：US16301890
申请日：2017-07-25
申请人： Shibata Corporation
摘要： The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.
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公开(公告)号：US20190176100A1
公开(公告)日：2019-06-13
申请号：US16301890
申请日：2017-07-25
申请人： Shibata Corporation
IPC分类号： B01F3/04
摘要： The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.
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公开(公告)号：US12076696B2
公开(公告)日：2024-09-03
申请号：US18230030
申请日：2023-08-03
申请人： Shibata Corporation
IPC分类号： B01F23/00 , B01F23/20 , B01F23/231 , B01F25/40 , B01F25/431 , B01F25/432 , B01F25/433 , F15D1/02
CPC分类号： B01F23/23105 , B01F23/20 , B01F25/40 , B01F23/23112 , B01F25/4316 , B01F25/4323 , B01F25/4335 , F15D1/025
摘要： The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.
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公开(公告)号：US20210331124A1
公开(公告)日：2021-10-28
申请号：US17363686
申请日：2021-06-30
申请人： Shibata Corporation
摘要： The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.
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公开(公告)号：US20230372882A1
公开(公告)日：2023-11-23
申请号：US18230030
申请日：2023-08-03
申请人： Shibata Corporation
IPC分类号： B01F23/231 , B01F23/20 , B01F25/40
CPC分类号： B01F23/23105 , B01F23/20 , B01F25/40 , B01F23/23112 , B01F25/4316
摘要： The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.
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公开(公告)号：US20220242754A1
公开(公告)日：2022-08-04
申请号：US17606383
申请日：2020-07-22
申请人： SHIBATA CORPORATION
发明人： Yoshiki SHIBATA , Kouji HANAMURA
摘要： In a fine bubble generator having a structure in which a columnar portion protrudes from an orifice of a tubular member, the presence of the columnar portion inhibits a flow of a fluid, so that a flow rate of the fluid that generates fine bubbles is limited. In addition, foreign matter may be sandwiched between the columnar portions. It takes time and effort to manufacture the columnar portions. Furthermore, when the columnar portion is supported in a cantilever state, it is difficult to ensure mechanical rigidity and also to ensure durability.
A fine bubble generator includes: an inlet portion that gradually reduces in diameter from an inlet of a tubular body; an orifice continuous to the inlet portion; and an enlarged-diameter portion continuous to the orifice, and the inlet portion, the orifice and the enlarged-diameter portion are sequentially formed. A boundary between the orifice and the enlarged-diameter portion is a radially elevation surface, and a diameter of the enlarged-diameter portion is 3 to 10 times a diameter of the orifice. A concave portion is preferably formed in an outlet peripheral wall.
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