COMBINED RADIAL AND AXIAL FLOW MULTISTAGE TURBINE

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COMBINED RADIAL AND AXIAL FLOW MULTISTAGE TURBINE ( combined-radial-and-axial-flow-multistage-turbine )

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Patented Apr. 8, 1952 2,592,27 OFFICE UNITED STATE_S PATENT 2,592,27 COMBINED RADIAL AND AXIAL FLOW MULTISTAGE TURBINE Clifton Yeomans, Washington, D. C. Application October 24, 1944, Serial No. 560,124 5Claims. (Cl.60-3954) 12 Thisinventionrelatestoturbinesandalthough it has speci?c reference to turbines operated by a gaseous ?uid or by a gaseous ?uid mixed with steam; it also has reference to turbines driven solely by steam. The primary object of the invention consists in a turbine in which the thermal and pressure energy of the driving ?uid is converted into mechanical power within a minimum of space andwithaminimumofweightofthepartsneces 10 sary to produce the desired conversion. detailsorconstructionsorarrangementsmay be substituted for those shown, without departing from the essence of the invention. The invention is illustrated in the accompany ing drawings in which Figure 1 is an end view of a turbine taken at the fuel admission side; Figure 2 is an end view of a turbine showing 'the exhaust side; Figure 3 is a cross section through the turbine along line 3-3 in Figure 5, part of this section being broken away, this part showing another crosssectionalongline3a—3aofFigure5. The cross section along line 3—-3 runs through the admission side, the cross section along line 3a7-3a through the exhaust side of one stage of Another object of the invention consists in pro viding a turbine which may be operated either as an internal combustion engine, utilizing the gases due to the explosion of a mixture of a 15 fuel and air or may be operated with a mixture ofsteamandcombustiongasesormaybeoper-. therotor; . ated by steam alone acting as a driving ?uid. A furtherobjectoftheinventionconsistsinan action and reaction turbine in which the energy 20 of the driving ?uid is transformed into mechan ical power by a tangential and axial ?ow of the fluid. A further object of the invention consists in an action and reaction turbine in which the 25 energy of the driving ?uid is transformed into mechanical power by a tangential and axial ?ow ofthe?uid. A further object of the invention consists in providing a turbine of the internal combustion 30 type supplying itself with the air for combustion and being simultaneously equipped for the pro duction of steam within the power unit. A further object of the invention consists in utilizing'the space surrounding the axis of the 85 rotor for the purpose of generating steam. Avstill further object of the invention consists in providing a combined turbine and compressor unit, occupying a minimum of space and pro ducingthecompressionofairnecessaryforcom 40 bustion before it enters the combustion chamber. A number of other objects and advantages will be apparent to those skilled in theart or will‘be specially referred to in the following detailed speci?cation describing several modi?cations of 45 the invention. This description by referring to the drawings showing these modi?cations has to describe speci?c examples of constructions but it is to be understood that the invention consists inthearrangement,constructionandcombina 50consistsoftwopartsjoinedby?anges23,24. tion of parts in general as outlined in the an nexed claims and that the speci?c examples are described by way of illustrating the best mode ofcarryingtheinventionintoeffect,butarenot sectionsorchambers. Nearthefrontorentrance in any way limitative and that other speci?c 65 endistheairchamber26,towhichairisadmitted Figure 4 is a plan view of the turbine with the upper casing removed showing the lower casing, thejetopeningcylinder,partlybrokenaway,and the rotor with its blades; Figure 5 is an elevational longitudinal section through the turbine according to the invention; Figure 6 is an elevational longitudinal section throughamodi?cationoftheinventioninwhich the turbine is combined with an air compressor, and in which the jets acting in the rotor in the various stages are produced by means of a num ber of rings, equal to the number of stages, each ringbeingprovidedwithguidingblades; Figures7and 8areviewsofsmallstripsofthe compressor rotor with the casing removed show ing the blades of the compressor; » Figure ,9 is an end view of the same modi?ca tion,‘ partly in section along the line 9-9 of Figure 6; Figures 10, 11, and 12 are parts of sectional views, showing cross sections through the com pressor and rotor along the lines Ill-I0; Il-l I; l2-—l2;ofFigure6,respectively. Figure 13 is another sectional view showing a cross section through the compressor and rotor along line I3—l3 of Figure 6, which illustrates in detail the ring construction and shows the blades arranged on the rings. As seen in Figures 1 through 5, the improved turbine comprises a casing 20, enclosing a rotor 2| mounted on a shaft 22. The casing 20, as shown in Figures 1 and 2 It is supported by a supporting ?ange 25 which rests on the structure carrying the installation. The interior of the turbine may be divided into

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