Patent ID: 9011141
Filing Date: 2015-04-21
Classification: F23C,F23D,F23N

Abstract:
1. A burner comprising: a plurality of substantially concentric ducts comprising: fuel supply ducts, and an additional duct, in which another fluid flows, located at the exterior of the fuel supply ducts, the additional duct being delimited by a first pipe and a second pipe whose axes are parallel and which are mobile in relation to one another along an axial direction; diverting members defined in the additional duct by channels supplied with the other fluid and used to impart a tangential component to the other fluid, the diverting members being fixedly carried by the first pipe and the diverting members being open in the direction of the second pipe, the second pipe including a drive portion to drive from upstream towards downstream the other fluid outside the diverting members according to an angle of a tangential component at a downstream end of the additional duct which depends on axial position of the second pipe in relation to the first pipe, the drive portion being oriented, according to a radial direction, defined as an increase in a distance from the first pipe for a displacement according to the axial direction from upstream towards downstream.