Title:
PREMIXING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/033373
Kind Code:
A1
Abstract:
In a premixing device that comprises a fan 2, an air pipe 3 through which air in line with the fan flows, and a gas pipe 5 inside the air pipe, and also comprises an air control valve 7 facing an air inlet 31 positioned on an end of the air pipe in the X+ direction, where the X+ direction is the direction toward the upstream side of the air flow in the air pipe, a gas control valve 8 facing a gas outlet 51 positioned on one end of the gas pipe, and an shared actuator 9 that drives the air control valve and the gas control valve, the present invention makes it possible to prevent the dynamic pressure of the air flowing in from the air inlet from impacting the gas outlet and thereby reliably supply air and fuel gas to the burner in volumes corresponding to the amount required for combustion. The gas pipe 5 end in the X− direction is provided with a valve seat 52 forming the gas outlet 51, and the gas control valve 8 is disposed in the gas pipe 5. A valve stem 81 that penetrates the end wall 53 of the gas pipe 5 in the X+ direction is provided, and the gas control valve 8 is driven by the actuator 9 via the valve stem 81.
Inventors:
NONOYAMA MASAO (JP)
Application Number:
PCT/JP2016/003041
Publication Date:
March 02, 2017
Filing Date:
June 23, 2016
Export Citation:
Assignee:
RINNAI KK (JP)
International Classes:
F23D14/62; F23K5/00; F23N1/02
Foreign References:
| JPS602143U | 1985-01-09 | |||
| JP2001235120A | 2001-08-31 | |||
| JP2014215007A | 2014-11-17 | |||
| JP2015014431A | 2015-01-22 |
Attorney, Agent or Firm:
SEIGA PATENT AND TRADEMARK CORPORATION (JP)
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