MODE OF GAS DYNAMIC IGNITION AND AN ARRANGEMENT FOR ITS EXECUTION Russian patent published in 2008 - IPC F23Q13/00 F23D11/34 

FIELD: the invention refers to power engineering and machine building.

SUBSTANCE: the mode of ignition of two-component fuel includes division of gaseous component on two flows, acceleration of each of them to supersonic speed, deceleration of jets with excitation of shock waves, division of jets on cold and heated components, concentration of shock waves in the given zones of heating the component. Part of the second component is fed into the heated part of the first flow of the gaseous component upon achieving of the prescribed temperature and the formed mixture is fed into the heated component of the second flow. The gas dynamic igniter has a body in the shape of an elliptical concentrator of acoustic oscillations, in one of its focuses a core gas jet radiator is fixed; a system of feeding of the first and the second components of fuel, the first of which is the working body of the core gas jet radiator; a communicating resonant tube with openings for feeding the second component of fuel installed in the bottom in the second focus of the concentrator. According to the invention the output from the communicating resonant tube communicates with the cavity of second communicating resonant tube located coaxially to the second concentrator of acoustic oscillations with its proper gas jet radiator installed on the bottom on the other side of the first concentrator, moreover the main pipeline for feeding the first component being the working body of the second gas jet radiator communicates with the main pipeline of feeding the working body of the core radiator.

EFFECT: allows reduce time lag of the process of ignition and increase its reliability due to absorption of acoustic energy with gas and combustible mixture filling the communicating resonant tube.

3 cl, 2 dwg