FUEL VAPORIZATION TYPE FLAME ARRESTER OPTIMIZING COOLING

PROBLEM TO BE SOLVED: To ensure ventilation of a fuel pipe and to cool an outside plate by air passing an orifice communicated with the side of a ventilation pipe by a method wherein the ventilation pipe is formed approximately in a triangle section and contains two sides approximately paralleling the outside plate and a downstream surface provided at an interior with a radial groove to contain a fuel pipe, and a plurality of additional orifices oriented toward the fuel pipe are formed at the groove wall. SOLUTION: A flame arrester contains a body 34 radially extending in a primary flow, and the body 34 is formed in a V-shaped two-surface form and comprises two side plates 35 and 36 having a common ridge 37; a ventilation pipe 38 arranged between the two side plates 35 and 36; and at least one fuel pipe 44 and 45 arranged in the rear of the ventilation pipe 38. The section of the ventilation pipe is formed approximately in a triangle, and a groove 42 containing the fuel pipes 44 and 45 therein is formed in a surface situated downstream therefrom. The ventilation pipe 38 is provided with the two-surface form and orifices 41 and 46 to powerfully cool the side plates 35 and 36. The fuel pipe contains a plurality of aerodynamic injectors oriented toward an after- burner chamber 23.