Patent ID: 9046270
Filing Date: 2015-06-02
Classification: F02C,F02M,F23C,F23D,F23R

Abstract:
1. A flameholder for holding a flame comprising a flow of combusting fluid, comprising: a magnetic-field generator comprising a first pole piece having a cavity within which a second pole piece is located in such a way that an opening is formed between the first and second pole pieces, the opening having an inlet and an outlet, and the opening providing a flow path for the combusting fluid, the magnetic-field generator in use generating a magnetic field across the opening, wherein the first pole piece has a first recess and a second recess on an inner surface of the first pole piece that faces the second pole piece, and the second pole piece has a first recess and a second recess on an outer surface of the second pole piece that faces the first pole piece, wherein in use the combusting fluid flows in the flow path through the magnetic field such that an electric current is induced in the combusting fluid, thereby generating a force on the combusting fluid that is opposed to a flow direction of the combusting fluid, the induced electric current being in a form of a closed loop in a plane perpendicular to the flow direction of the combusting fluid such that in use the induced electric current can flow in the closed loop entirely within the combusting fluid.