Sleeve supported two pole rotor assembly
First Claim
1. A rotary electrical machine having a housing, a rotor member comprising a body of magnetizable material, a rigid sleeve of non-magnetic material surrounding said rotor member and supporting the latter, means for rotatably supporting said sleeve in said housing, a first winding lying in a generally diametral plane of said rotor member, and passage means for permitting a fluid to flow within said sleeve from one axial end of said rotor member to the other axial end thereof, said passage means being provided by openings in said rotor member body.
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Accused Products
Abstract
A rotary electrical machine includes a two pole rotor carrying a winding. The rotor is contained within a thin sleeve of non-magnetic material which supports the rotor within bearings in the machine.
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Citations
16 Claims
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1. A rotary electrical machine having a housing, a rotor member comprising a body of magnetizable material, a rigid sleeve of non-magnetic material surrounding said rotor member and supporting the latter, means for rotatably supporting said sleeve in said housing, a first winding lying in a generally diametral plane of said rotor member, and passage means for permitting a fluid to flow within said sleeve from one axial end of said rotor member to the other axial end thereof, said passage means being provided by openings in said rotor member body.
- 2. A two-pole rotary electric machine having a housing, a stator winding in said housing and a rotor within said stator winding, said rotor comprising a body of magnetizable material and means for supporting said body in said housing, said supporting means comprising a sleeve of non-magnetic material surrounding and engaging said rotor body, and means for rotatably supporting said sleeve in said housing, the outer surface of said sleeve defining an outer surface of the rotor as a whole, and said sleeve having a solid annular cross-section over substantially the whole of its zone of engagement with said rotor body.
- 4. A two-pole rotary electrical machine having a housing, a rotor body of magnetizable material, said body having two axially-extending slots at diametrally opposite locations in its periphery, a first winding on said rotor body, said winding having a plurality of turns each of whose axially extending portions lie in said slots, said turns having diametrally extending portions adjacent the end faces of said rotor body, passages in said rotor body adjacent the periphery thereof, through which passages fluid can flow from one axial end of said rotor body to the other end thereof, and means for supporting said rotor body in said housing, said supporting means comprising a rigid non-magnetic sleeve of solid annular cross-section whose outer surface defines an outer surface of the rotor as a whole, said sleeve surrounding and engaging said rotor body, together with means for rotatably mounting said sleeve in said housing.
- 15. A rotary electrical machine having a housing, a rotor body of magnetizable material mounted in said housing, an axial inlet connection for fluid adjacent one end of said rotor body, a fluid outlet connection adjacent the other end of said rotor body, said body having two axially-extending slots at diametrally opposite locations in its periphery, a winding on said rotor body, said winding having axially-extending portions which lie in said slots and diametrally extending portions adjacent the end faces of said rotor body, means for spacing apart said turns so as to define, between adjacent ones of said axially extending portions within each slot, passages through which fluid can flow from said inlet connection to said outlet connection, and means for supporting said rotor body in said housing, said supporting means comprising a rigid non-magnetic sleeve of solid annular cross-section surrounding and supporting said rotor body, together with means for rotatably mounting said sleeve in said housing.
Specification