Surfaces of the static blades of a turbine are heated by a high temperature, high pressure working gas or heating gas passing through inner passages formed inside the static blades, so that the working gas which passes through interspaces defined between adjacent ones of the static blades, expands nearly isothermally without a drop in temperature so as to boost an output of the turbine.

The water fall from a higher to a lower elevation is through an annular passageway having one or more turbines driven by the water as it flows through the column. The water flow is preferably a siphon action entry to the annular column being by way of an inverted U-tube with the inlet thereto immersed below the water level. The column is designed with offset portions whereby a plurality of turbines can be located downstream from one another in the column and laterally offset so that the turbines...

A turbine which rotates in the same directional sense for both directions of throughflow of a working medium contains rotor blades possessing an aerofoil-shaped profile which at least over a portion of the length of the rotor blades is subdivided into profile parts or portions in order to improve the flow of the working medium about the rotor blades. The profile parts of the rotor blades are non-symmetrically constructed or arranged at least in part with respect to each plane which is perpendicu...

A turbine (10) for a gas turbine engine includes an annular array of turbine aerofoil blades (12) which are mounted on a disc (19). Each of the aerofoil blades (12) is provided with a radially inner platform (21). Each platform (21) includes a passage (37) into which leaked cooling air flows. The passages (37) are disposed in a direction having a circumferential component so that cooling air is exhausted from them in a direction that is generally opposite to that in which the disc (19) operation...

A method and apparatus for the generation of power wherein a working fluid is compressed within outward extending rotor passages, and then passed inward in other rotor passages with accompanying expansion and deceleration, with work being generated by the decelerating fluid. Heat may be added into the working fluid near the rotor periphery, and in closed rotors, heat is removed from the working fluid after expansion. A regenerator also may be used mounted on the rotor exchanging heat between two...

This invention relates to turbines wherein fluid pressure temperature energy is released, via its passage from a high-speed nozzle delivery mounted externally and tangentially, to closely-spaced together circular profiled sheet metal, or ceramic, plates, preferably plate members that have concave and convex surfaces, at least in part, which form high surface area bodies of revolution. An assembly of disc members form the turbine rotor within which the surface adhesion effect of the traversing fl...

A water turbine has a series of spaced blades attached to and extending around the periphery of a body portion, preferably of conical or similar shape; each of the blades has a leading end mounted at a mid region of the body e.g. halfway along it and each blade generally increases in radial dimension in the downstream direction towards the base of the body and each blade generally decreases in pitch of the blade surface in the downstream direction. A channel is defined between adjacent blades, t...

The turbine comprises a casing having a plurality of grooves spirally formed upon an inner circumference thereof and a rotor having a plurality of grooves spirally formed upon an outer circumference thereof, each groove of the rotor having a plurality of vanes. The plurality of grooves in the casing are opposed to the plurality of grooves of the rotor, thereby a plurality of flow passages are formed spirally.

A power turbine (12) comprises alternate annular arrays of contra-rotatable turbine blades. Two arrays of turbine blades (30) and (47) have annular arrays of aerofoil propulsion blades (17,18) respectively attached thereto. Alternate arrays of turbine blades are attached to a primary drum member (55) in such a manner that below normal operating temperatures, limited relative radial movement is permitted between them. However when the normal operating temperature is reached, the relative radial m...

A turbine includes a sealing element with a receiving area for sealing the guide blade vanes which are adjacent to each other in the peripheral direction of the turbine. The foot plates of the guide blade vanes extend into the receiving area. The edge area of the foot plates does not have to be reinforced compared to a conventional seal, which enables the entire foot plate to be cooled homogeneously. A closed cooling system can therefore be used for cooling, especially with steam.