Title:
NOZZLE AND CLEANING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/251123
Kind Code:
A1
Abstract:
The present invention provides a technology that enables a nozzle for ejecting a fluid to eject a plurality of fluids together. A nozzle (10) is provided with a converging portion (20) having an inside (21) tapered toward the downstream of a fluid flow. The nozzle (10) is also provided with a choked portion (30) having, partway through the fluid flow, a flow cross-section (S30) narrower than a flow cross-section (S22) at an upstream end (22) of the converging portion (20). The nozzle (10) is further provided with a duct portion (40) that communicates with the choked portion (30). The nozzle (10) is further provided with a flow generation portion (50) which is disposed spaced apart from the upstream end (22) of the converging portion (20) and which ejects a fluid to the inside (21) of the converging portion (20) from the upstream end (22) side of the converging portion (20) toward a downstream end (23) side thereof.
Inventors:
ARAI TSUYOSHI (JP)
Application Number:
PCT/JP2021/019683
Publication Date:
December 16, 2021
Filing Date:
May 24, 2021
Export Citation:
Assignee:
MK SEIKO CO LTD (JP)
International Classes:
F15D1/00; F04F5/04
Foreign References:
| JP2014218937A | 2014-11-20 | |||
| JP2007073615A | 2007-03-22 |
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