High speed generator with the main rotor housed inside the shaft
First Claim
1. A high speed generator, comprising:
- a generator housing;
a main generator shaft assembly rotationally mounted within the generator housing, the main generator shaft assembly having at least an inner surface and an a surface;
rotor shaft mounted within the main generator shaft assembly, the rotor shaft having at least a first end, a second end, an inner surface, and an outer surface;
main rotor mounted on the rotor shaft and within the main generator assembly;
main stator mounted within the generator housing and surrounding least a portion of the main generator shaft assembly;
a first and a second main rotor cooling supply orifice extending between the rotor shaft inner and outer surfaces, the first main rotor cooling supply orifice disposed proximate the rotor shaft first end and the second main rotor cooling supply orifice disposed proximate the rotor shaft second end; and
a first and a second main stator cooling supply orifice extending between the main generator shaft assembly inner and outer surfaces, the first and second stator cooling supply orifices in fluid communication with the first second main rotor cooling supply orifices, respectively.
1 Assignment
0 Petitions
Accused Products
Abstract
A high speed generator has its main rotor located within the main generator shaft assembly. The main rotor is mounted on a substantially hollow rotor shaft, which is also mounted within the main generator shaft assembly. The main stator surrounds at least a portion of the main generator shaft assembly. Main rotor cooling supply orifices extend through the rotor shaft. Main stator cooling supply orifices, which are in fluid communication with the main rotor cooling supply orifices, extend through the main generator shaft assembly. Cooling fluid is directed into the main generator shaft assembly, and flows through the main rotor cooling supply orifices and the main stator cooling supply orifices. The main rotor and main stator cooling supply orifices are configured to supply the main rotor and main stator with a cooling fluid spray. This configuration reduces the rotational fluid mass associated with flood-cooled rotors, which increases structural integrity, lowers material stresses, improves rotor dynamics.
-
Citations
22 Claims
-
1. A high speed generator, comprising:
-
a generator housing;
a main generator shaft assembly rotationally mounted within the generator housing, the main generator shaft assembly having at least an inner surface and an a surface;
rotor shaft mounted within the main generator shaft assembly, the rotor shaft having at least a first end, a second end, an inner surface, and an outer surface;
main rotor mounted on the rotor shaft and within the main generator assembly;
main stator mounted within the generator housing and surrounding least a portion of the main generator shaft assembly;
a first and a second main rotor cooling supply orifice extending between the rotor shaft inner and outer surfaces, the first main rotor cooling supply orifice disposed proximate the rotor shaft first end and the second main rotor cooling supply orifice disposed proximate the rotor shaft second end; and
a first and a second main stator cooling supply orifice extending between the main generator shaft assembly inner and outer surfaces, the first and second stator cooling supply orifices in fluid communication with the first second main rotor cooling supply orifices, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A rotor assembly for a high speed generator, comprising:
-
a main shaft assembly having at least an inner surface and an outer surface;
a rotor shaft mounted within the main shaft assembly, the rotor shaft having at least at inner surface and an outer surface;
a rotor mounted on the rotor shaft and within the main shaft assembly;
a first and a second rotor cooling supply orifice extending between the rotor shaft inner and outer surfaces, the first main rotor cooling supply orifice disposed proximate the rotor shaft first end and the second main rotor cooling supply orifice disposed proximate the rotor shaft second end; and
a first and a second stator cooling supply orifice extending between the main shaft assembly inner and outer surfaces, the first and second stator cooling supply orifices in fluid communication the first and second rotor cooling supply orifices, respectively. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A shaft assembly for mounting within a high speed generator, comprising:
-
a drive shaft adapted to couple to a rotational power source;
a fluid supply shaft having an internal fluid flow passageway;
a rotor housing coupled between the drive shaft and the fluid supply and having an inner surface that forms a cavity adapted to mount a rotor assembly therein;
a rotor shaft mounted within the rotor housing cavity and having a first end, a second end, an inner surface and an outer surface, the rotor shaft first end coupled to the drive shaft, and the rotor shaft second end coupled to the fluid supply shaft; and
a first and a second orifice extending between the rotor shaft inner and outer surface and in fluid communication with the fluid supply shaft internal fluid flow passageway, the first orifice disposed proximate the rotor shaft first end and the second orifice disposed proximate the rotor shaft second end. - View Dependent Claims (19, 20, 21, 22)
-
Specification