Title:
VENTURI NOZZLE AND FUEL SUPPLY DEVICE COMPRISING VENTURI NOZZLE
Document Type and Number:
WIPO Patent Application WO/2017/158904
Kind Code:
A1
Abstract:
A venturi nozzle (1) that is disposed upstream of a fan (20) and that mixes air for combustion and fuel gas by way of the intake pressure of the fan (20) comprises: a nozzle portion (12) by which air for combustion is introduced and that is formed so that the diameter thereof decreases toward the downstream side; a mixing portion (13) by which air for combustion and fuel gas are mixed, that is formed so that the diameter thereof increases toward the downstream side, and that is disposed on the downstream side of the nozzle portion (12); and a fuel gas introducing portion (15) by which fuel gas is introduced and that is disposed between the nozzle portion (12) and the mixing portion (13). A plurality of ridges (16) that extend in the circumferential direction and that are disposed at a prescribed interval in the flow direction of the air for combustion are formed on the inner face of the nozzle portion (12).
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Inventors:
SHIBA MAKOTO (JP)
WATANABE SHIGEHIRO (JP)
FUJIWARA TATSUYA (JP)
WATANABE SHIGEHIRO (JP)
FUJIWARA TATSUYA (JP)
Application Number:
PCT/JP2016/081836
Publication Date:
September 21, 2017
Filing Date:
October 27, 2016
Export Citation:
Assignee:
MIURA KOGYO KK (JP)
International Classes:
F23D14/64; F23K5/00
Foreign References:
| JPH1089628A | 1998-04-10 | |||
| JPS585264U | 1983-01-13 | |||
| JP2008500533A | 2008-01-10 | |||
| US20140202443A1 | 2014-07-24 | |||
| JP2015210042A | 2015-11-24 | |||
| JPS5332540B2 | 1978-09-08 | |||
| JP2001526372A | 2001-12-18 | |||
| JPH07190441A | 1995-07-28 | |||
| US20010055737A1 | 2001-12-27 | |||
| JPH11325997A | 1999-11-26 | |||
| US7882751B2 | 2011-02-08 |
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