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Title:
SPRAY NOZZLE, AND BURNER AND COMBUSTION DEVICE EQUIPPED WITH THE SAME
Document Type and Number:
Japanese Patent JP2014031988
Kind Code:
A
Abstract:

To provide a spray nozzle capable of suppressing generation of coarse particles and reducing unburnt components, soot, dust, and carbon monoxide to improve combustion efficiency.

A spray nozzle 1 is formed with at least two sprayed fluid flow channels 4 and 5 facing each other in which a mixed fluid 8 flows. The mixed fluids, which flow in each sprayed fluid flow channel, collide with each other and join at a confluence. The spray nozzle includes an outlet hole 11 that makes the mixed fluid spray from the confluence. The outlet hole is connected to a groove portion 12 formed on an outer surface of the spray nozzle. A peripheral wall surface of the groove is formed so as to have a cross sectional area expanding in the spraying direction of the sprayed fluid and a cross sectional area contracting in the spraying direction of the sprayed fluid, alternatively.


Inventors:
Orii, Akihito
Okazaki, Hirofumi
Ochi, Kenichi
Kuramasu, Kimiharu
Okimoto, Hideo
Application Number:
JP2012000173992
Publication Date:
February 20, 2014
Filing Date:
August 06, 2012
Export Citation:
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Assignee:
BABCOCK-HITACHI CO LTD
International Classes:
F23D11/38; B05B1/26; F23D17/00
Attorney, Agent or Firm:
ポレール特許業務法人