Electrical machine
First Claim
Patent Images
1. An electrical machine, comprising:
- a stator;
a rotor having a hollow shaft configured to have a closed hollow space to accept a fluid; and
two three-dimensional transport structures provided in the closed hollow space to transport the fluid and rotatable about a longitudinal axis of rotation, wherein said three-dimensional transport structures include a first three-dimensional transport structure and a second three-dimensional transport structure and constructed so that due to their rotation in a specified direction said first three-dimensional transport structure transports the fluid in a first aggregate state close to the axis of rotation in a specified direction along the axis of rotation and said second three-dimensional transport structure transports the fluid in a second aggregate state remote from the axis of rotation, in an opposite direction, wherein said first and second three-dimensional transport structures are located radially one inside the other and extend substantially over the same length in the axial direction, wherein the first three-dimensional transport structure and the second three-dimensional transport structure correspondingly have a first plurality of vanes assuming a first vane position to transport the fluid in the first aggregate state in the specified direction and a second plurality of vanes assuming a second vane position to transport the fluid in the second aggregate state in the opposite direction.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to an electric machine (100) comprising a stator (107) and a rotor (101), wherein the rotor (101) comprises a hollow shaft (102), wherein a closed hollow space (103) is formed by means of the hollow shaft (102), wherein the closed hollow space (103) is provided for receiving a cooling agent, wherein a three-dimensional transport structure (200) is provided in the closed hollow chamber (103) for transporting the cooling agent. The three-dimensional structure can, for example, be produced by means of applying an adaptive material.
-
Citations
17 Claims
-
1. An electrical machine, comprising:
-
a stator; a rotor having a hollow shaft configured to have a closed hollow space to accept a fluid; and two three-dimensional transport structures provided in the closed hollow space to transport the fluid and rotatable about a longitudinal axis of rotation, wherein said three-dimensional transport structures include a first three-dimensional transport structure and a second three-dimensional transport structure and constructed so that due to their rotation in a specified direction said first three-dimensional transport structure transports the fluid in a first aggregate state close to the axis of rotation in a specified direction along the axis of rotation and said second three-dimensional transport structure transports the fluid in a second aggregate state remote from the axis of rotation, in an opposite direction, wherein said first and second three-dimensional transport structures are located radially one inside the other and extend substantially over the same length in the axial direction, wherein the first three-dimensional transport structure and the second three-dimensional transport structure correspondingly have a first plurality of vanes assuming a first vane position to transport the fluid in the first aggregate state in the specified direction and a second plurality of vanes assuming a second vane position to transport the fluid in the second aggregate state in the opposite direction. - View Dependent Claims (3, 11, 12, 13)
-
-
2. An electrical machine, comprising:
-
a stator; a rotor having a hollow shaft configured to have a dosed hollow space to accept a fluid; and two three-dimensional transport structures provided in the closed hollow space to transport the fluid and rotatable about a longitudinal axis of rotation, wherein said three-dimensional transport structures include a first three-dimensional transport structure and a second three-dimensional transport structure and constructed so that due to their rotation in a specified direction said first three-dimensional transport structure transports the fluid in a first aggregate state close to the axis of rotation in a specified direction along the axis of rotation and said second three-dimensional transport structure transports the fluid in a second aggregate state remote from the axis of rotation, in an opposite direction, wherein said first and second three-dimensional transport structures are located radially one inside the other and extend substantially over the same length in the axial direction, wherein the first three-dimensional transport structure and the second three-dimensional transport structure correspondingly have a first helical structure having a first coiling direction to transport the fluid in the first aggregate state in the specified direction and a second helical structure having a second coiling direction to transport the fluid in the second aggregate state in the opposite direction. - View Dependent Claims (14, 15, 16, 17)
-
- 4. A method for the manufacture of three-dimensional transport structures to transport a fluid of a thermosiphon of an electrical machine, comprising an additive material coating step to form the two three-dimensional transport structures including a first three-dimensional transport structure and a second three-dimensional transport structure rotatable about longitudinal axis of rotation and constructed so that due to their rotation in a specified direction of rotation said first three-dimensional transport structure transports the fluid in a first aggregate state close to the axis of rotation in a specified direction along the axis of rotation and said second three-dimensional transport structure transports the fluid in a second aggregate state remote from the axis of rotation, in an opposite direction, and wherein said first and second three-dimensional transport structures are located radially one inside the other and extend substantially over the same length in an axial direction, wherein the first three-dimensional transport structure and the second three-dimensional transport structure correspondingly have a first plurality of vanes assuming a first vane position to transport the fluid in a first aggregate state in the specified direction and a second plurality of vanes assuming a second vane position to transport the fluid in a second aggregate state in the opposite direction, or have a first helical structure having a first coiling direction to transport the fluid in the specified direction and a second helical structure having a second coiling direction to transport the same another fluid in the opposite direction.
Specification