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Matches 551 - 600 out of 1,928

Document Document Title
JP4413553B2
The device has a shaft rotatable about its longitudinal axis in a housing, carrying turbine and compressor wheels and mounted in radial bearings and at least one axial bearing. The radial bearings are passive permanent magnet bearings wi...  
JP2009299637A
To solve the problems of rotation resistance of a rotary shaft and a shape of blades for increasing torque and power generation efficiency, and thunderbolt damage in a former wind turbine generators.This wind turbine generator is charact...  
JP4390856B2
PCT No. PCT/CH96/00335 Sec. 371 Date May 6, 1998 Sec. 102(e) Date May 6, 1998 PCT Filed Sep. 26, 1996 PCT Pub. No. WO98/11650 PCT Pub. Date Mar. 19, 1998The rotary pump (3) according to the invention comprises a housing (9) and a rotor (...  
JP4383708B2
A combination bearing (10) supporting a shaft (16) interconnecting the turbine and compressor wheels (18) of a turbocharger incorporates a dual film floating journal bearing (20), a squeeze film damper (32) and ball bearing carrier (48),...  
JP4352170B2
The radial bearings (5, 6) are constructed as passive magnetic bearings with permanent magnets (23-31) producing axial magnetic flux.  
JP4351840B2  
JP4323759B2
Compatibility of a small spring constant and large supporting load is realized, so that a stable operation is assured even if a fine-movement linear motor fails. A supporting unit, having a plurality of magnets whose same poles are arran...  
JP4324736B2
A magnetic bearing control device includes a rotation speed sensor for detecting a rotational speed of a rotating member supported on an axial magnetic bearing and a radial magnetic bearing without contact, and a displacement sensor for ...  
JP4320409B2
A magnetically journalled electrical drive has a magnetically journalled electrical machine with machine and magnetic bearing windings which are inserted in the stator or rotor for the production of torque and the suspension force, and a...  
JP4318395B2
The method involves bringing frictional surfaces on the stator and rotor into contact in the event of a disturbance causing a radial movement of the rotor so that the disturbing radial movement is damped by friction between the frictiona...  
JP2009183066A
To make a shaft rotate efficiently stably by preventing torque loss, while restricting the shift in the thrust direction of the shaft in a bearing section by a suction magnet.For a dynamic pressure bearing type motor 100, a rotor shaft 1...  
JP4307562B2
A centrifugal separator comprises a housing through which extends a spindle on which is mounted a centrifuge rotor. The rotor is mounted on journal bearing bushes that are lubricated by the liquid supplied at pressure to the rotor and th...  
JP4293185B2
In order to obtain a magnetic bearing apparatus in which a large cooling effect is exerted by a simple configuration, fins 15 which form an air flow in a rearward direction are disposed in a rear portion and outer diameter of a rotary sh...  
JP4287213B2
Disclosed are a magnetic bearing device with a vibration restraining function, a magnetic bearing device with a vibration estimating function, and a pump device with the magnetic bearing devices mounted thereto, in which it is possible t...  
JP4280320B2
In a damping arrangement for a radial magnetic bearing (3,4) for a rotor having a stator (4) firmly attached to an intermediate member (8), the intermediate member is attached in the axial direction via balls (14) in cups (12) of the int...  
JP2009108869A
To provide a bearing unit that stably rotates a shaft.The bearing unit 8 has a shaft 5, a bearing housing 24, a sleeve 9, an attraction magnet 25, a thrust plate 10, a ring-like member 26, and a seal washer 12. The bearing unit is intern...  
JP4261339B2
The emergency bearing for a rotary machine having magnetic bearings comprises an emergency landing device including an intermediate element ( 9 ) having a large contact area with a stator element ( 10 ), the intermediate element ( 9 ) be...  
JP4248626B2
An implantable rotary sealless blood pump (11) is provided. The pump (11) includes a housing (12) having an inlet tube (13) on one end and an impeller casing (14) on the other end. A rotor (17) is mounted for rotation within the housing ...  
JP4241223B2
A magnetic bearing device includes an electromagnet for supporting a member without contact; an excitation amplifier for supplying an excitation current to the electromagnet; a carrier wave generation device for generating a carrier wave...  
JP4221227B2
The invention relates to a galette for guiding at least one thread, comprising a hollow cylindrical body. Said hollow cylindrical galette body is positioned on a carrier by means of a plurality of bearings in such a way that it can rotat...  
JP4220733B2
To provide a superconductive member and a magnetic levitation device wherein loss is little in rotation and translational movement. The superconductive member is composed of a plurality of superconductors. A part of a surface joining the...  
JP2009008593A
To provide an inexpensive torque measuring device of a simple constitution, which measures a torque between a collar of a bearing ring and a large end surface of a tapered roller.This torque measuring device comprises a shaft 1 integrall...  
JP4189037B2
A magnetically journalled electrical drive comprises a magnetically journalled electrical machine with windings which are inserted in the stator or rotor for the production of the torque and the suspension force and an analog or digital ...  
JP4184950B2
The active magnetic bearing (1) comprises a stator (2) fitted with electromagnet windings (21) and a first stack of ferromagnetic laminations (22), a rotor (3) fitted with a second stack of ferromagnetic laminations (9), servo-control ci...  
JP4180288B2
A cylinder for guiding yarn comprises a hollow-cylindrical jacket seated on a support by radially acting magnetic bearings having plural pole windings distributed circumferentially. The cylinder jacket position is detected by plural sens...  
JP2008267509A
To provide a pulley supporting structure for extending the life of a bearing, even when subjected to non-steady loads due to external influences.In the pulley supporting structure, driving and driven side pulleys 11, 14 between which a m...  
JP4176075B2
A magnetic bearing spindle comprises a radial magnetic bearing rotor (2) forming by laminating a ring-like plate made of electromagnetic steel sheet, an axial magnetic bearing rotor (3) made of magnetic material and a main shaft motor ro...  
JP4165903B2
A rotary motor and a rotary magnetic bearing are integrated in a compact assembly (10) that is contactless. A stator assembly (16) surrounds a ferromagnetic rotor (18) with an annular air gap (20) which can accommodate a cylindrical wall...  
JP4146092B2
An implantable rotary blood pump including a rotor mounted for rotation within a pump housing. The rotor has a shaft portion and an impeller carried by the shaft portion. A rotor motor is provided, with the motor including a plurality of...  
JP4139444B2
A method for the excitation of the radial force and torque winding systems of electrical drives with integrated magnetic bearings. The drives comprise an electrical machine with torque and radial force windings which are introduced in th...  
JP4121947B2
A tilting pad journal bearing, an annular housing for an array of arcuate bearing pads resiliently mounted by spring means which biases the pads against heads of restraining bosses that limit radial displacement and cause the bearing pad...  
JP2008160914A
To provide a magnetic bearing device integrated with a motor enhancing motor efficiency while suppressing heat generation of a motor rotor by bringing the current waveform of the motor coil close to sine wave.A three-phase commutatorless...  
JP4111709B2
An orifice plate assembly (82) for a gas turbine engine (10) that facilitates extending a useful life of bearing assemblies (70) within the gas turbine engine is described. Each orifice plate assembly is coupled in flow communication wit...  
JP4106218B2
A textile machine has a galette thread guide with a hollow cylindrical galette mantle (1) around which the thread moves. The galette rotates on a pivot with a collar with a bearing. The bearing is a radial magnetic bearing with a number ...  
JP4106277B2
A godet for guiding at least one advancing yarn in a yarn processing operation. The godet comprises a tubular casing which is mounted for free rotation on a support by means of a plurality of bearings. At least one of the bearings is a r...  
JP2008133874A
To prevent a shaft and a sleeve from sliding and rotating while contacting with each other until dynamic pressure is generated or after dissipation of the dynamic pressure.A rotor boss 4 integral with the shaft 1 supports a rotary polygo...  
JP4091426B2
The rotary machine comprises a rotary shaft ( 2 ) supported by first and second radial magnetic bearings ( 5, 6 ) that are electrically controlled by a control device ( 13 ), said rotary shaft being fitted with an axial abutment device (...  
JP4075252B2  
JP2008064316A
To provide a damping member being easily bent.The damping member comprises elastomer members, and two plate members fixed on surfaces of the elastomer members confronting with each other.  
JP4065237B2
A flywheel energy storage system ( 10 ) includes a vacuum enclosure ( 18 ) having a flywheel ( 12 ), motor/generator ( 14 ), and a shaft ( 16 ) enclosed within. The flywheel and motor/generator combination are designed to minimize bearin...  
JP4064081B2  
JP4059313B2
Disclosed is a magnetic bearing control device capable of suppressing the ripple current flowing through the electrolytic capacitor. Exciting circuits 110 for ten axes of a magnetic bearing are divided into two groups: a group which cont...  
JP4046986B2  
JP4036567B2
The present invention provides a controlled magnetic bearing apparatus which generates a control signal based on a sensor signal from a displacement sensor for detecting a radial displacement of a rotor to suppress whirling of the rotor ...  
JP4034358B2
A polyphase spindle DC motor (figure 1A, 1B) providing a torque (figure 1A) and an additional radial force (F, figure 1B) within the spindle motor utilizing the spindle components (magnets and stator laminations). Interaction between the...  
JP4028597B2
The bearings (3, 4) of the shaft (2) of a turbine (1) have each a first bearing part (3a, 4a) joined to the shaft and a second fixed bearing part (3b, 4b). In order to make the bearings (3, 4) inherently stable, one of both bearing parts...  
JP4024382B2
A magnetic bearing apparatus is capable of supporting a rotatable rotor in a non-contact manner. The apparatus includes a plurality of electromagnets and a slit. The electromagnets are disposed around the rotor and support the rotor in a...  
JP2007536516A
A structure and associated method to accurately read an encoder tape in an encoder system. The encoder system comprises, a read head, a shoe structure adjacent the read head, and an encoder tape. The encoder tape is adapted to be read by...  
JP2007536102A
Insulation assemblies that are useful with bearing assemblies that fit in openings in bearing brackets of rotating machines, such as large synchronous motors or generators.  
JP4022281B2
The invention provides an elevator system for controlling movement of an elevator car with respect to guide rails in an elevator hoistway, having a force-estimation or position-scheduled current command controller and a magnet driver cir...  

Matches 551 - 600 out of 1,928