Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shigemi Mandai0
Wataru Akizuki0
Katsunori Tanaka0
Keijirou Saitoh0
Date of Patent
April 22, 2008
Patent Application Number
10415649
Date Filed
July 5, 2002
Patent Primary Examiner
Patent abstract
A premixing nozzle includes swirler blades for agitating combustion air inside a nozzle body. Each one end of the swirler blades is fitted to the nozzle body, and the other end is connected to a hub, respectively. The tip portion of a fuel nozzle shaft is conical, and a part of the tip portion is arranged inside the hub. A combustion gas flows into the hub from a space between the tip portion of the fuel nozzle shaft and the upstream end of the hub, passes through between the tip portion and the inner peripheral surface of the hub, and flows toward the downstream of the hub.
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