Class / Patent application number | Description | Number of patent applications / Date published |
310086000 | Shield in air gap | 22 |
20080197731 | Brushless motor and pump mounted with brushless motor - A bottom portion side rib and a flange portion side rib are respectively formed on the bottom portion and the flange portion of the inner cover. The bottom portion side rib includes a plurality of bottom portion side radial ribs and a plurality of bottom portion side circular ring shaped ribs connecting the plurality of bottom portion side radial ribs. The flange portion side rib includes a plurality of flange portion side radial ribs and a flange portion side circular ring shaped rib connecting the plurality of flange portion side radial ribs. | 08-21-2008 |
20080218015 | ENCAPSULATED STATOR ASSEMBLY AND PROCESS FOR MAKING - Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes a stator assembly that comprises a stator sleeve formed of a magnetic material, a sleeve extender coaxial to the stator sleeve formed of a non-magnetic material fixedly attached to each end of the stator sleeve, wherein a point of attachment is heat treated, and a wall formed of the non-magnetic material fixedly attached to the sleeve extender configured to hermetically house a stator and form the encapsulated stator assembly. | 09-11-2008 |
20090091201 | AXIAL IMPACT LINER - An axial impact liner comprises a bearing liner having a shear member and a pocket. A spring and a supply of oil may be included within the pocket. In the event of an axial load, such as from a bearing or main rotor failure, the axial impact liner can shear in the axial direction and absorb the energy of the axial load by forcing the shear member into the oil filled pocket and against the spring. The pocket comprises a volume capable of accommodating the full axial distance that the rotor could move. | 04-09-2009 |
20100148605 | ENCAPSULATED OUTER STATOR ISOLATED ROTOR STEPPER MOTOR VALVE ASSEMBLY - An electric motor assembly includes a rotor rotatable about an axis and a stator spaced radially away from the rotor. An isolation housing, configured to permit magnetic flux to flow therethrough between the rotor and the stator, is disposed between the rotor and the stator and defines an internal rotor chamber, in which the rotor is located. The isolation housing fluidly isolates the internal rotor chamber from the stator. An encapsulating cover is provided that radially and axially surrounds the stator. The cover is formed of a resin material and bonds the stator to the isolation housing to prevent relative movement therebetween. | 06-17-2010 |
20100231073 | Inner-Rotor-Type Motor - An inner-rotor-type motor includes a housing, a stator, a rotor, a permanent magnet and a cover plate. The housing has a compartment. The stator is received in the compartment. There is an assembling hole arranged at the axial center of the stator and passing through the stator from the top to the bottom thereof. The rotor has a shaft with one end thereof rotatably extending through the assembling hole, with a bearing being mounted around the shaft. The permanent magnet is fixed to an outer periphery of the shaft and beside the bearing, with the permanent magnet facing the stator. The cover plate is arranged between the permanent magnet and the bearing. Consequently, impurities are prevented from entering an undesired interstice between the bearing and the shaft or entering the inside of the bearing, such that smooth rotation of the rotor is provided and life of the inner-rotor-type motor is extended. | 09-16-2010 |
20100295395 | OVERMOULDED OR CANNED ELECTRICAL MACHINE - The rotary electric machine comprises at least one piece of electric equipment constituted by an overmolded or jacketed electric motor or by an overmolded or jacketed magnetic suspension system. The electric equipment comprises firstly a rotor ( | 11-25-2010 |
20100295396 | Separating can and method for producing the same - A separating can is provided. Fluid flow engines and drive motors can be encased in a housing, if a separation is made in the electric motor by a tube-shaped component, known as the separating can. The separating can must be sufficiently large to be strong and electrically non-conductive. The separating can is made at least partially of a ceramic or glass-like material, or is made at least partially of a polymer matrix reinforced using fibers. | 11-25-2010 |
20110156514 | VACUUM ACTUATOR AND SUBSTRATE TRANSPORT ROBOT - A vacuum actuator includes a vacuum partition wall, the interior of which can be evacuated to a vacuum, a rotor supported by the vacuum partition wall to be free to rotate, a permanent magnet provided on the outer peripheral surface of the rotor, a coil opposed to the permanent magnet, and a stator provided with the coil. The stator and the vacuum partition wall are formed integrally with each other. | 06-30-2011 |
20120091841 | ROTOR FOR AN ELECTRIC MOTOR AND METHOD FOR PRODUCING SUCH A ROTOR - A rotor for an electric motor is provided. The rotor includes a metal cone upon which a plurality of electrical conductors are arranged. A metallic corrosion protection layer is provided that envelopes the metal core and the conductors. The corrosion protection layer is laid around the metal core and the conductors as a solid body and fastened at least to the metal core. The corrosion protection layer is at least a part of a hot-pressing containment for isostatic pressing of the conductors in the metal core. The rotor, which is suitable for a high-speed electric motor for the industrial sector, can be produced at low cost and can be used reliably to compress chemically aggressive industrial process gases. | 04-19-2012 |
20120146440 | ROTOR CAN - A rotor can for a wet running electric motor includes an inner layer ( | 06-14-2012 |
20120223605 | ELECTRIC MACHINE, IN PARTICULAR A CANNED ELECTRIC MOTOR - An electric machine includes a rotor, a stator housing and a winding assembly surrounding the rotor. The winding assembly is arranged in the stator housing and has an axially extending effective region in which the winding assembly is set up to interact electrodynamically with the rotor. The stator housing has a peripheral opening slot on the side facing the rotor. The opening slot corresponds in its axial extent to the axial extent of the effective region of the winding assembly and in which an electrically non-conductive can of the electric machine is inserted. The can is sealed off with the stator housing in such a manner that the winding assembly is hermetically separated from the rotor. The can extends axially only on the effective region of the winding assembly. | 09-06-2012 |
20120286606 | CORROSION-RESISTANT JACKETED ACTIVE MAGNETIC BEARING - In a jacketed active magnetic bearing for a rotary machine having a rotor in contact with a process gas, there is provided a magnetic bearing comprising a bearing armature of laminated magnetic material secured to said rotor, a bearing stator protected by a first jacket of magnetic anti-corrosion material that co-operates with first housing portions to form a first leaktight housing enclosing the bearing stator, the first jacket being made of a ferritic stainless steel, and the first housing portions having insert parts that are also made of ferritic stainless steel, and that are connected by welds to a housing end-wall portion made of a magnetic anti-corrosion material, the laminated magnetic material forming the bearing armature and the detector armature also being a ferritic stainless steel. | 11-15-2012 |
20130099612 | JACKETED ELECTROMAGNETIC MACHINE STATOR FOR USE IN A CORROSIVE ATMOSPHERE WITHOUT HEAT TREATMENT - A jacketed electromagnetic machine stator for a pressurized rotary machine operating in a corrosive atmosphere containing H | 04-25-2013 |
20140054992 | CANNED TYPE ROTATING ELECTRICAL MACHINE - A rotating electrical machine according to the present invention includes a can formed in a tubular shape and made of fiber reinforced plastic. At least a part of a first end portion of the can is located on a radially outer side of an adhered portion of a first end member, and a resin-based adhesive is filled in a gap between the part of the first end portion and the adhered portion of the first end member. At least a part of a second end portion of the can is located on a radially outer side of an adhered portion of a second end member, and the resin-based adhesive is filled in a gap between the part of the second end portion and the adhered portion of the second end member. | 02-27-2014 |
20140077642 | Motor Stator Assembly - A motor stator assembly includes an iron core, a coil unit and a dustproof ring. The coil unit is coupled with the iron core. The iron core is spaced from a predetermined part of the coil unit by a gap when coupled with the coil unit. The dustproof ring is fitted around the predetermined part of the coil unit to cover the gap between the iron core and the predetermined part of the coil unit. | 03-20-2014 |
20140139061 | ELECTRIC MACHINE AND CAN FOR THE ELECTRIC MACHINE - An electric machine, in particular an electric motor, has a one-piece can disposed between a stator and a rotor. The can has a tubular casing, which is loaded with external pressure by a coolant in a machine housing and which is made of fiber composite material. The casing thickness of the can lies between 2.5 mm and 0.5 mm. The can is axially fitted onto a sleeve and the sleeve is mounted to a collar of an end plate of the machine housing. The sleeve has a first axial section projecting into the can and a second axial section aligned with the can. | 05-22-2014 |
20140300230 | ROTOR FOR AN ELECTRIC MOTOR - A rotor for an electric motor includes a metal core, a plurality of electrical conductors arranged on the metal core, and a metallic corrosion protection layer enveloping the metal core and the plurality of conductors. The corrosion protection layer is laid as a solid body around the metal core and the conductors and fastened at least to the metal core. The corrosion protection layer is at least a part of a hot-pressing containment for isostatic pressing of the conductors in the metal core. | 10-09-2014 |
20150061437 | CANNED MOTOR HAVING A HIGH-PRESSURE-RESISTANT CAN - A pump having a canned motor which has a stator with an internal rotor disposed therein, the stator and the internal rotor being mutually separated fluid-tightly by a can disposed between stator and internal rotor, the stator having stator teeth which extend radially in the direction of the internal rotor and define with appurtenant stator-tooth end faces a receiving space for the internal rotor and the can, the can lying against the stator-tooth end faces, the can having on its surface facing the stator, in stator-tooth gaps which are respectively defined by two mutually adjacent stator teeth, ribs fitted in in a form-locking manner which taper in the radial direction, starting out from a rib root disposed on the can, with regard to a rib thickness defined in the circumferential direction of the can. | 03-05-2015 |
20150295465 | DIFFUSION BARRIER LAYER FOR CANS - A can for an electric motor, especially for an electric motor in a compressor, the can be at least partially provided with an ethyl silicate coating is provided. A method for producing a can of this kind is also provided. | 10-15-2015 |
20160013698 | CANNED MOTOR AND VACUUM PUMP | 01-14-2016 |
20160134168 | WET-OPERATED ARMATURE - The present invention relates to a wet-operated armature of an electric machine, in particular of an electric motor for a fuel pump, said armature comprising a main body and a commutator, wherein the armature is surrounded by a sleeve which fully encloses the main part and the commutator in a circumferential direction. The present invention further relates to the armature sleeve, to an electric machine comprising the armature and to a fuel pump comprising the electric machine. The present invention further relates to a method for producing the armature. | 05-12-2016 |
20160149461 | Rotating Electric Machine - A small and low-price rotating electric machine has a structure where a magnet end surface and a metal tube end are not in contact with each other. The rotating electric machine has a cylindrical stator core, a rotor having a shaft provided on the inner circumferential side of the stator core, a yoke fixed to the shaft, at least one ferrite magnet provided on the outer circumferential surface of the yoke, and a protective cover provided on the outer circumference of the ferrite magnet. The ferrite magnet end surface is projected with respect to an end surface of the yoke, and has a step portion to form a gap between the end surface of the ferrite magnet and a bottom surface of the protective cover. | 05-26-2016 |