Circulating dielectric oil cooling system for canned bearings and canned electronics
First Claim
1. A cooling system for a rotating machine, comprising:
- a first radial bearing housing arranged about a rotor and having a first radial magnetic bearing sealed therein for levitating the rotor;
a second radial bearing housing arranged about the rotor and having a second radial magnetic bearing sealed therein for levitating the rotor;
a sealed controller can fluidly coupled to the first and second radial bearing housings and having a bearing control system disposed therein; and
a coolant within the first and second radial bearing housings and the controller can such that the first and second radial magnetic bearings and the bearing control system are immersed in the coolant.
1 Assignment
0 Petitions
Accused Products
Abstract
A cooling system for a rotating machine, such as a centrifugal compressor. Specifically, the cooling system may be configured to cool radial and axial magnetic bearings in the rotating machine and the bearing control system that controls said bearings. The cooling system includes canned magnetic radial bearings on each end of the rotor and a canned bearing control system. The canned bearings and canned bearing control system may be filled with a dielectric cooling fluid and in fluid communication with each other via sealed conduits. Accordingly, the radial magnetic bearings and the bearing control system may be entirely immersed in the dielectric cooling fluid to regulate heat generation. An axial magnetic bearing may also be canned and fluidly coupled to the cooling system to immerse the axial magnetic bearing in the dielectric cooling fluid.
421 Citations
20 Claims
-
1. A cooling system for a rotating machine, comprising:
-
a first radial bearing housing arranged about a rotor and having a first radial magnetic bearing sealed therein for levitating the rotor; a second radial bearing housing arranged about the rotor and having a second radial magnetic bearing sealed therein for levitating the rotor; a sealed controller can fluidly coupled to the first and second radial bearing housings and having a bearing control system disposed therein; and a coolant within the first and second radial bearing housings and the controller can such that the first and second radial magnetic bearings and the bearing control system are immersed in the coolant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for cooling a rotating machine, comprising:
-
arranging a first radial bearing housing about a rotor, the first radial bearing housing having a first radial magnetic bearing sealed therein for levitating the rotor; arranging a second radial bearing housing about the rotor, the second radial bearing housing having a second radial magnetic bearing sealed therein for levitating the rotor; fluidly and sealingly coupling a controller can to the first and second radial bearing housings, the controller can having a bearing control system disposed therein; and immersing the first and second radial magnetic bearings and the bearing control system in a dielectric liquid coolant. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A cooling system for a rotating machine, comprising:
-
a first radial bearing housing arranged about a rotor and having a first radial magnetic bearing sealed therein for levitating the rotor; a first sealed conduit extending from the first radial bearing housing; a second radial bearing housing arranged about the rotor and having a second radial magnetic bearing sealed therein for levitating the rotor; a second sealed conduit extending from the second radial bearing housing; a controller can having a bearing control system disposed therein, the controller can being coupled to the first and second sealed conduits with first and second connectors that provide a pressure boundary between the controller can and the first and second sealed conduits; wiring extending from the bearing control system to the first and second radial bearing housings via the first and second sealed conduits, respectively; a first coolant within the first and second radial bearing housings and the first and second sealed conduits, the first and second radial magnetic bearings and the wiring within the first and second sealed conduits being immersed in the first coolant; and a second coolant within the controller can such that the bearing control system and wiring within the controller can are immersed in the second coolant. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification