Vehicle-use alternator enabling accurate control of position and attitude of the alternator during an operation of mounting the alternator in a vehicle
It is an objective of the present invention to overcome the above problems of the prior art, by providing a vehicle-use alternator whereby obstruction of movement of the alternator during an operation... Read More
Inventors: Kawano, Yusuke;, Assignee: Denso Corporation (Kariya, JP) |
Supporting device of a shaft drive of a magnetic record and reproduction device
OF THE PREFERRED EMBODIMENT OF THE INVENTION The present invention will be explained in reference to an embodiment shown in the attached drawings. The numeral 1 designates a base of a mechanism. Nume... Read More
Inventors: Ozaki, Yoshiaki; Takanashi, Mahito;, Assignee: Janome Sewing Machine Co. Ltd. (Tokyo, JP) |
Spring member for hub assembly
A hub assembly in a disc drive includes a hub rotatable about an axis. The hub has a first axial end and a second axial end. A plurality of hub mounted elements are disposed about the hub, including a... Read More
Inventors: Chow, Min-Chan J.; Battu, Ramgopal; Wang, Jeffrey L.;, Assignee: Seagate Technology, Inc. (Scotts Valley, CA) |
Disk drive motor
Accordingly, it is an object of the present invention to provide a disk drive motor of which impairment of rotational performance, in particular run-out of the rotary part of the motor, is suppressed ... Read More
Inventors: Miyamoto, Eiji; Osawa, Harushige; Chuta, Masanobu;, Assignee: Nidec Corporation (Kyoto, JP) |
Optical deflection/scanning apparatus
The present invention has been made in consideration of the above problems of the prior art, and has as its object to provide an optical deflection/scanning apparatus in which the speed of a rotary po... Read More
Inventors: Miyamoto, Hideyuki;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Slip ring unit with a printed circuit board
An object of the present invention is therefore based on making possible a slip ring unit with a printed circuit board which is distinguished by a simple and cost-effective construction. This object i... Read More
Inventors: Ludwig (Mü, nchen, DE);, Assignee: LTN Servotechnik GmbH (Otterfing, DE) |
Electrical drive systems
It is an object of the invention to provide a DC drive system having a low speed performance adequate for servo use. In particular it is an object of the invention to minimize torque ripple in brushle... Read More
Inventors: Buckley, Maurice; Stone, Arthur; Murray, Aengus;, Assignee: Kollmorgen Technologies Corporation (Dallas, TX) |
Rotor for permanent magnet-excited, high-speed electric machines and electric machine equipped with this rotor
We claim: 1. Rotor for high-speed magnet excited electric machines comprising a rotor shaft; permanent magnets and fillers arranged between them, said fillers being made of non-magnetic material, said... Read More
Inventors: Canders, Wolf-Ruediger; Heldt, Joachim; Zellmann, Norbert;, Assignee: Anton Piller GmbH & Co. KG (Osterode am Harz, DE) |
Multiphase brushless AC electric machine
According to the present invention, there is provided a multiphase brushless AC electric machine comprising: a stator frame having a surface provided with parallel slots and projections disposed alter... Read More
Inventors: Couture, Pierre; Francoeur, Bruno;, Assignee: Hydro-Quebec (Montreal, CA) |
Rotor for electric motor
Therefore, an object of the present invention is to provide a rotor for electric motors, in which occurrence of cracks can be prevented from being produced in the frame body and the dimensional accura... Read More
Inventors: Shiga, Tsuyoshi; Hayashi, Kinya; Endou, Masami;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Permanent magnet electric motor having reduced cogging torque
It is an object of the present invention to provide a permanent magnet motor having a reduced or eliminated cogging torque while having a cost and complexity similar to conventional motors. A permanen... Read More
Inventors: Acquaviva, Sebastiano;, Assignee: Motors Acquisition Corp. (Southfield, MI) |
Electronically switched reluctance motor
What is claimed is: 1. Electronically switched reluctance motor with wound yokes (11) magnetically separated from each other for the generation of a pulsating magnetic field and with a rotor (12) that... Read More
Inventors: Lungu, Iancu;, Assignee: |
Magnetic floating bearing of a fan, which locates rotary shaft by means of distribution of magnetic force
It is therefore a primary object of the present invention to provide a magnetic floating bearing of a fan, which locates rotary shaft by means of distribution of magnetic force. The magnetic floating ... Read More
Inventors: Chen, Cheng-Kang; Yu, Chien-Chun;, Assignee: |
Miniature motor
This invention is intended to overcome the problems inherent in the prior art. It is an object of this invention to provide a miniature motor having a soundproofing plate that can be manufactured at h... Read More
Inventors: Okada, Kazuo;, Assignee: Mabuchi Motor Co., Ltd. (Matsudo, JP) |
Driving force auxiliary device
One aspect of the present invention relates to a driving force auxiliary device for combining a manpower drive force and a motor drive force comprising a manpower drive means, an auxiliary power drive... Read More
Inventors: Miyazawa, Hiroshi; Takada, Yutaka; Shinozaki, Junichiro; Tanaka, Kuniaki; Nakazato, Hiroshi; Shinkai, Katsumi;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Motor having grounding structure for reducing radio noise
The present invention therefore has an objective to provide a motor having a grounding structure for reducing radio noise that appears at a motor yoke without any increase in parts cost. A motor of th... Read More
Inventors: Noda, Takeo; Suzuki, Akihiko;, Assignee: ASMO Co., Ltd. (Shizuoka, JP) |
Electronic package for electrical machine
The above discussed and other drawbacks and deficiencies are overcome or alleviated by an electronic package for an electrical machine preferably a rotary current generator includes a slip ring end (S... Read More
Inventors: Bradfield, Michael D.; Maley, David; McCord, Michael; Bledsoe, Chris;, Assignee: Delco Remy International, Inc. (Anderson, IN) |
Coaxial engine starter with hollow shaft clutch
It is an object of the present invention to provide an engine starter which eliminates the above-described disadvantages. It is another object of the present invention to provide an engine starter, th... Read More
Inventors: Isozumi, Shuzoo; Tanaka, Toshinori;, Assignee: Mitsubishi Denki Kabushiki Kaisha (JP) |
Apparatus for generating autogenic energy
Therefore, an object of the invention is to provide an apparatus for utilizing long-sustained autogenic energy. Another object of the invention is to provide a mode of energy exploitation that will no... Read More
Inventors: Mu, Chung-Nan; Tu, Yu-Ta;, Assignee: Sunyen Co., Ltd. (Taipei, TW) |
Method of making a brushless motor with inside mounted single bearing
The present invention relates to a brushless motor including an inside stator assembly including a support member, an outside rotor assembly, a single angular contact bearing, and a shaft. The outside... Read More
Inventors: Horski, Marek;, Assignee: Siemens Electric Ltd. (Brampton, CA) |
Magnetic bearing for suspending a rotating shaft using high Tc superconducting material
One possible object of the present invention is therefore to refine the magnetic bearing having the features mentioned initially, such that such risk of bearing icing is minimized irrespective of the ... Read More
Inventors: Steinmeyer, Florian;, Assignee: Siemens Aktiengesellschaft (Munich, DE) |
Method and apparatus for balancing rotating components of a spinstand of a magnetic head and disk tester
The present invention is directed to a method and apparatus for balancing the spinstand of a magnetic head and disk testing system. The apparatus comprises a disk support assembly which includes a spi... Read More
Inventors: Guzik, Nahum; Bokchtein, Ilia M.;, Assignee: Guzik Technical Enterprises (San Jose, CA) |
Independent clamping spacers in a disc drive assembly
The present invention is directed to an apparatus and method for improving mechanical shock resistance of a disc drive. As exemplified by preferred embodiments, a disc drive includes a spindle motor w... Read More
Inventors: Luo, Erming; Wood, Roy L.; Stricklin, John D.;, Assignee: Seagate Technology LLC (Scotts Valley, CA) |
Permanent magnet D.C. motor having a radially-disposed working flux gap
The present invention is addressed to d.c. motors which may be controlled in a "brushless" manner, and produced at practical cost levels commensurate with their incorporation into products intended fo... Read More
Inventors: Petersen, Christian C.;, Assignee: |
Asynchronous machine
In contrast, the asynchronous machine of the present invention offers the advantage that with the both reinforcement elements opening to an air gap, a magnetic inference for the stray field on the fro... Read More
Inventors: Vlemmings, Johannes; Roth, Karl-Juergen;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Torque and torsion angle measuring apparatus
We claim: 1. Torque and torsion angle measuring apparatus comprising a shaft (8) having an input end portion (7) and an output end portion (9); a first induction member (2) concentric to said shaft an... Read More
Inventors: Hachtel, Hansjorg; Dobler, Klaus;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Torque sensor
Accordingly, it is an object of the present invention to provide a torque sensor having its reliability as a sensor improved by avoiding damage to a winding and a lead wire during soldering work, and ... Read More
Inventors: Satoh, Kouichi; Chikaraishi, Kazuo;, Assignee: NSK Ltd. (Tokyo, JP) |
Torque sensor
In view of the problems experienced with the conventional structures, a first object of the present invention is to provide a torque sensor capable of reducing the cost and improving a detection accur... Read More
Inventors: Chikaraishi, Kazuo; Satoh, Kouichi;, Assignee: NSK Ltd. (Tokyo, JP) |
Fixing structure for coil assembly and power-steering device
The present invention was designed in the light of the above described problems with prior-art devices, and has as an object thereof the provision of a fixing structure for a coil assembly and an elec... Read More
Inventors: Chikaraishi, Kazuo;, Assignee: NSK Ltd. (Tokyo, JP) |
Torque sensor
In view of the foregoing, an object of the present invention is to provide a torque sensor which does not require a complicated neutral adjustment using a position adjustment mechanism, which is able ... Read More
Inventors: Satoh, Kouichi; Onizuka, Toshiyuki; Chikaraishi, Kazuo;, Assignee: NSK Ltd. (Tokyo, JP) |
Generators or Motors 
