GB787717A - Thermal compressor - Google Patents

Abstract

787,717. Compressing gases: injectors. SEBAC-NOUVELLE SOC. ANON. Jan. 24, 1956 [Jan. 28, 1955], No. 2330/56. Classes 8(1) and 71. A compressor comprises a ring of separate injector nozzles 2, Fig. 1, each supplied with combustible working fluid under pressure through a duct 14 and a slot 11, Fig. 2, so as to induce a combustion supporting gas into the throat 8, means to ignite the resulting mixture as it is discharged from the divergent portion 9 of each nozzle, a plurality of troughs 3, Fig. 3, serving to guide the hot combustion gases round the ring of nozzles and a plurality of divergent deflectors 5 surrounding the troughs 3 and nozzles 2 which serve to convert kinetic energy of the hot gases to potential energy and to discharge them to a header 6. As shown, liquid hydrocarbon under pressure is forced from a manifold 1 along each duct 14 to an annular chamber 10 of each nozzle 2 and through the orifice 11 thereof. A strainer 16 prevents backfiring and the temperature of the hot combustion gases is reduced by forcing water from valved ducts 42 into the nozzles at the induced gas, e.g., air inlets. In a modified nozzle 21, Fig. 8, the working jet 11<SP>1</SP> is located further from the air inlet end of the nozzle and in a further modification the water is injected through a ring of holes in the cylindrical wall of the nozzle at the air inlet end. Hydrocarbon vapour instead of liquid may form the working fluid and to this end liquid hydrocarbon is vaporized in a duct located at one focal point of an ellipse formed by the crosssection of an internally reflecting surface ; the other focal point being occupied by a radiant heat source. Specifications 456,063 [Group XXXIII] and 715,817 are referred to.