Патент USA US2404275код для вставки
July16,1946. T. CLARK ET- AL - INTERNAL-COMBUSTION TURBINE PLANT - Filed June 28, 1943 ' 2,404,215 Patented July 16, 1946 2,404,275 UNITED STATES PATENT OFFICE‘ _ 2,404,275 INTERNAL-COMBUSTION TURBINE PLANT Thomas Clark and William Henry Lindsey, Cov entry, England, assignors to Armstrong Sid deley Motors Limited, Park Side, Coventry, England Application June 28, 1943, Serial No. 492,614 In Great Britain October 2, 1942 3 Claims. (01. 60-41) 2 This invention relates to an intemal-combus tion turbine plant.’ Our main object is to prevent the formation of ice in the compressor in a very simple way. Ice, it will be understood, is particularly liable to form in the compressor when such a plant is 7 being used to provide jet propulsion for an air ling a valve 25, a’bell-crank 3| operable by a rod 32. ~ In practice it will be desirable for all the valves 25 to be operable in unison and by equal amounts, so that equal quantities of the burning gases will be abstracted from’ the different chambers l6. At the same time the open ends 29 of the craft and the latter reaches a predetermined pipes 21 are, it will be height above sea level. spaced angularly round A further object is to provide means for ab 10 as to distribute evenly stracting a small quantity—say, 2%—of the desired the interiors of burning mixture, preferably before it passes to the turbine, and for injecting this small quan observed, symmetrically the compressor inlet, so the injected gases. If the pipes 21 may, any where along their lengths, be interconnected to ensure uniform pressures therein. At 33 we tity into the air at the compressor inlet. show part of an annular pressure-equalizing For a better understanding of these and other 15 pipe which interconnects the interiors of all the objects and advantages of the invention atten pipes 21. tion should be directed to the following descrip As stated, we contemplate abstracting, say, only tion in which reference is made ‘to the accom 2% of the total burning gases, which, in ordi panying diagrammatic drawing. The‘ single ?g nary conditions, will provide ample heat for de ure of this is a fragmentary sectional elevation icing purposes. of an internal-combustion turbine plant accord vWhat we claim as our invention and desire to ing to the invention. secure by Letters Patent of the United States is: The drawing shows a turbine plant having an 1. An internal-combustion turbine plant in axial-?ow-type of rotary compressor compris cluding an axial-flow-type of rotary compressor ing a stationary casing II with sets of ?xed 25 and a combustion chamber connected to the blades l2, l2 between and coacting with which outlet‘end of the compressor, in combination are sets of blades l3, ii! on a rotary drum l4 with a passage leading from the combustion keyed or otherwise secured upon a shaft 15. chamber to the inlet end of the compressor, and The plant has a plurality of combustion cham controllable valve means‘ which when opened bers l6, "5 which are arranged in parallel with 30 allows about 2% of the burning mixture to be one another and symmetrically spaced angularly passed from the combustion chamber to the com round the axis of the shaft 15, and the delivery pressor inlet. of air from the compressor outlet I1 is divided 2. An internal-combustion turbine plant in between these combustion chambers IS, The cluding a compressor and a plurality of angu outlets l8 of the latter lead to an axial-?ow-type 35 larly-spaced combustion chambers arranged in of turbine including a stationary casing I9 carry ing sets of fixed blades 20, 20 which coact with blades 2|, 2| on a rotor 22 keyed or otherwise secured upon and driving the shaft l5. Only the outline of a combustion chamber I6 40 is shown, as such combustion may take many known forms. The burner and fuel-injection arrangements form no part of the present in vention and are not therefore illustrated. In the present instance each combustion cham parallel, and connected to the compressor outlet, in combination with means for abstracting a small quantity of the burning mixture from each combustion chamber and injecting it at angu larly-spaced points into the air at the com pressor inlet to raise the temperature thereof, and means for equalizing the delivery to said angularly-spaced points. 3. In combination with an internal-com 45 bustion turbine plant including an air com her It, near its outlet end,_has an opening 23 pressor, a plurality of combustion chambers ar leading to a valve chamber 24 which is shown as containing a poppet valve 25 pressed by a d ranged in parallel and connected to the com pressor outlet and a turbine connected to the spring 26 to the closed position. Each poppet outlets of said combustion chambers, means pro 50 valve thus controls the delivery of some of the viding passages for abstracting a small quantity burning gases from the associated combustion of the hot gases produced in the combustion chamber I B to a pipe 2'! leading from the valve chambers and injecting said hot gases into the chamber forwardly outside the compressor and air at the compressor inlet to warm said air, curled round at its front end 28, such that some and means for equalizing the pressure in said of the burning gases can be injected through 55 passages. the open ends 29 of these pipes into the air at THOMAS CLARK. the compressor inlet 30. We show, for controlWILLIAM HENRY LINDSEY.