Combined turbine and generator

An electrical a.c. salient pole synchronous generator/pump comprising a stator and a rotor, the rotor having a plurality of circumferentially spaced thick, axial flow propellor turbine blades for transferring mechanical energy to or from a liquid, the blades being formed of a ferromagnetic material and being mutually interconnected at their radially inner ends by portions of the rotor also made of ferromagnetic material, direct current field windings associated with respective blades and located proximate radially inward portions of the blades so as to generate magnetic flux in the blades and pole tips of ferromagnetic material carried at the radial extremities of the blades so as to shape and distribute the magnetic flux carried by the blades, the stator containing a winding and a laminated ferromagnetic core, the stator being adapted to surround the rotor with the ferromagnetic core spaced by a small gap from the pole tips whereby continuous magnetic flux paths comprising the blades, pole tips, stator core are formed and link the stator winding.

An electrical a.c. salient pole synchronous generator/pump comprising a stator, an axial flow rotor and a flow tube, the axial flow rotor having a plurality of circumferentially spaced thick, axial flow propellor turbine blades for transferring mechanical energy to or from a liquid, the blades being formed of a ferromagnetic material and being mutually interconnected at their radially inner ends by portions of the axial flow rotor also made of ferromagnetic material, direct current field windings associated with respective blades and located proximate radially inward portions of the blades so as to generate magnetic flux in the blades, pole tips of ferromagnetic material carried at the radial extremities of the blades so as to shape and distribute the magnetic flux carried by the blades, the stator containing a winding and a laminated ferromagnetic core, the stator surrounding the axial flow rotor with the ferromagnetic core spaced by a small gap from the pole tips whereby continuous magnetic flux paths comprising the blades, pole tips, stator core are formed and link the stator winding, the flow tube surrounding the rotor and establishing an axial fluid flow path through the rotor, the tube being formed in two parts defining a circular gap into which projects from the outside the stator core and from the inside the pole tips.

An axial flow rotor for an electrical a.c. salient pole synchronous machine, the rotor having a plurality of circumferentially spaced thick, axial flow propellor turbine blades for transferring mechanical energy to or from a liquid, the blades being formed of a ferromagnetic material and being mutually interconnected at their radially inner ends by portions of the rotor also made of ferromagnetic material, permanent magnet means associated with respective blades and located proximate radially inward portions of the blades so as to generate magnetic flux in the blades and pole tips of ferromagnetic material carried at the radial extremities of the blades so as to shape and distribute the magnetic flux carried by the blades.

A rotor for an electrical a.c. salient pole synchronous machine, the rotor having a plurality of circumferentially spaced thick turbine blades of the impulse type for transferring mechanical energy from a liquid, the blades being formed of a ferromagnetic material and being mutually interconnected at their radially inner ends by portions of the rotor also made of ferromagnetic material, direct current field windings each of which is associated with at least one blade, the field windings being located proximate radially inward portions of the blades so as to generate magnetic flux in the blades and pole tips of ferromagnetic material carried at the radial extremities of the blades, so as to shape and distribute the magnetic flux carried by the blades.

An electrical A.C. salient pole synchronous generator comprising a stator and a rotor, the rotor having a plurality of circumferentially spaced thick turbine blades of the impulse type for transferring mechanical energy from a liquid, the blades being formed of a ferromagnetic material and being mutually interconnected at their radially inner ends by portions of the rotor also made of ferromagnetic material, direct current field windings each of which is associated with at least one blade, to fold windings being located proximate radially inward portions of the blades so as to generate magnetic flux in the blades and pole tips of ferromagnetic material carried at the radial extremities of the blades, so as to shape and distribute the magnetic flux carried by the blades, the stator being adapted to surround the rotor with the ferromagnetic core spaced by a small gap from the pole tips whereby continuous magnetic flux paths comprising the blades pole tips, stator core are formed and link the stator winding.

A machine according to claim 43 wherein the blades are divided into a plurality of groups each of which is made up of a like plurality of blades and wherein a respective one of the field windings is associated with each group.

An axial flow rotor for an electrical A.C. salient pole synchronous machine, the rotor having a plurality of circumferentially spaced thick, axial flow propellor turbine blades for transferring mechanical energy to or from a liquid, the blades being formed of a ferromagnetic material and being mutually interconnected at their radially inner ends by portions of the rotor also made of ferromagnetic material, direct current field windings each of which is associated with at least one blade, the field windings being located proximate radially inward portions of the blades so as to generate magnetic flux in the blades and pole tips of ferromagnetic material carried at the radial extremities of the blades so as to shape and distribute the magnetic flux carried by the blades.