Axial flux reluctance machine with two stators driving a rotor
The present invention concerns an axial flux reluctance machine and methods for operating such a machine to reduce torque ripple, noise, vibration, and core losses and to improve the overall character... Read More
Inventors: Li, Yue; Lloyd, Jerry D.;, Assignee: Emerson Electric Co. (St. Louis, MO) |
Axial bolt-in cage stator frame assembly and method for assembling a stator
The invention is embodied in a stator cage design that allows parallel manufacturing of the stator frame and core, thereby reducing cycle time. The core is formed by stacking a plurality of lamination... Read More
Inventors: Boardman, IV, William Hunter;, Assignee: General Electric Company (Schenectady, NY) |
Methods of making an electric motor and thrust bearing assembly for same
This invention relates generally to bearing assemblies and, more particularly, to thrust bearing assemblies for mounting on a motor shaft. In fractional horsepower electric motors, the rotor and motor... Read More
Inventors: Keck, Arthur C.;, Assignee: General Electric Company (Fort Wayne, ID) |
Apparatus for reusing hangers with size indicia
OF THE INVENTION Referring now in detail to the drawings, and to the embodiments depicted in FIGS. 1 and 2, there is illustrated a hanger hook 2 with a color coded size cap 18 mounted thereon that is... Read More
Inventors: Gouldson, Stanley F.; Zimmerman, Glenn;, Assignee: Spotless Plastics Pty. Ltd. (AU) |
Reluctance-type motor having widened bottom
It is therefore an object of the present invention to provide a reluctance-type motor that has less drop in output torque and hence less ripple in the output torque even salient poles of a rotor and a... Read More
Inventors: Mimura, Naohisa; Takabe, Yoshiyuki; Makita, Shinji; Saitou, Tomohiro; Yoshida, Hideji;, Assignee: Asmo Co., Ltd. (Shizuoka, JP) |
Apparatus and method for suspending a stator core of an electric generator
The object of the present invention is to reduce or eliminate the problems outlined above. This object and others are obtained by providing an apparatus and method for suspending a stator core in an e... Read More
Inventors: Leif (Vä, steras, SE);, Assignee: ALSTOM Technology Ltd. (Baden, CH) |
Steel rotor shafts for electric machines
The general object addressed herein is to provide new steel compositions, rotor shafts made from the steel compositions, and preferably steel compositions of improved strength and toughness with good ... Read More
Inventors: Siga, Masao; Kuriyama, Mitso; Mori, Takanobu; Fukui, Yutaka; Ishizuka, Tatsuro;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Stator core of vehicle rotary electric machine and method of manufacturing the same
Therefore, a main object of the invention is to provide a powerful and inexpensive vehicle rotary electric machine having a stator core that is free from the above problems. In other words, the invent... Read More
Inventors: Nakamura, Shigenobu;, Assignee: Denso Corporation (Kariya, JP) |
Motor casing and method of producing same
The invention relates to a motor casing comprising a first casing member and a second casing member which are separated in a direction of a rotational shaft of a motor wherein the first and second cas... Read More
Inventors: Yamakoshi, Issei; Koike, Yoshikazu; Takagi, Kunihiko;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Power apparatus with low energy consumption
The scope of the present invention is to provide a power apparatus in which, in spite of extremely limited consumption, the developed power is surprisingly high.... Read More
Inventors: Makkun, Panpop;, Assignee: |
Magnetic fluid seal containment shield
The present invention has a significant aspect in that it captures the ferromagnetic seal fluid, which may be spun away from the magnetic seal gap, and holds that fluid within proximity of the magneti... Read More
Inventors: Cossette, Luke A.; Delagardelle, Craig A.;, Assignee: International Business Machines, Corp. (Armonk, NY) |
Bearing device with a primary and secondary magnetic fluid sealing mechanism
It is therefore an object of the invention to provide a bearing device which can prevent magnetic fluid from leaking, reduce contamination outside of the bearing device caused by dust and gases, and p... Read More
Inventors: Miyakoshi, Toshihiko; Yonezawa, Arihiro; Nose, Tamotsu;, Assignee: Sankyo Seiki Mfg. Co., Ltd. (Nagano, JP) |
Shock and vibration system
A shock and vibration isolation system for an article comprising a set of elastomers circumferentially positioned in a shear mode around a member carried by the article to simultaneously support the a... Read More
Inventors: Guion, Robert Dennis; Wagner, David Roy; LaCroix, Denis Allen;, Assignee: Lockheed Martin Corporation (Bethesda, MD) |
Cooling system for electric motors
I claim: 1. An electromagnetic machine rotor assembly comprising a rotor shaft internally accommodating a heat pipe which extends axially therealong and has an evaporating portion and a condensing por... Read More
Inventors: Workman, John;, Assignee: S.B.W. Engineers Limited (Belfast, GB5) |
Rotary electric motor
We claim: 1. A structure for use with a rotary electric motor of a sealed type, comprising: a first housing; a second housing having at least one air opening which leads to the outside air, said secon... Read More
Inventors: Harano, Keiichi; Kawada, Shigeki; Oyama, Shigeaki;, Assignee: Fujitsu Fanuc Limited (Tokyo, JP) |
Electric motor having internal heat dissipator
It is therefore an object of the invention to provide an internal heat dissipator for an electric motor or the like which efficiently dissipates heat without drawing dust or other contaminants into th... Read More
Inventors: Khanh, Dinh;, Assignee: Heat Pipe Technology, Inc. (Alachua, FL) |
Cooling arrangement of vehicle rotary electric machine
Therefore, a main object of the invention is to provide a compact, powerful and highly efficient vehicle rotary electric machine that has an improved cooling arrangement. A vehicle AC generator accord... Read More
Inventors: Nakamura, Shigenobu; Kusase, Shin;, Assignee: Denso Corporation (Kariya, JP) |
Electric motor having a rotor supported by a holder member which is angularly fixed to a printed circuit board
The present invention is devised to solve the foregoing conventional problems. Therefore, it is an object of the present invention to provide a holder member fixing apparatus of a motor, wherein the h... Read More
Inventors: Shin, Seong Ho;, Assignee: Samsung Electro-Mechanics Co. Ltd. (Suwon, KR) |
Electric motor fan seal ring
An electric motor cooling fan having a seal ring reduces cooling air recirculation inside the motor which increases the cooling of motor windings for the prevention of motor failures and increases mot... Read More
Inventors: Mokri, James S.;, Assignee: General Electric Company (Schenectady, NY) |
Reorienting treadmill
A treadmill has a support structure configured to be freestanding and to stably support the treadmill and more specifically the tread base in multiple orientations. The support structure has feet mean... Read More
Inventors: Watterson, Scott R.; Dalebout, William T.;, Assignee: ICON Health & Fitness, Inc. (Logan, UT) |
Direct driving apparatus for an electric treadmill
It is a primary object of the present invention to provide a direct driving apparatus for an electric treadmill which doesn't require a transmission belt, a belt transmission wheel or a drive chain, a... Read More
Inventors: Lee, Ying-Che;, Assignee: |
Rotating electric machine and cooling method thereof
1. A rotating electric machine comprising: a plurality of ventilating passages formed between a stator frame and a stator iron core; coolers provided in said plurality of ventilating passages; a fan f... Read More
Inventors: Ide, Kazumasa; Hattori, Kenichi; Komura, Akiyoshi; Yamashina, Yoko; Sonobe, Tadashi; Semba, Akitomi; Sato, Junji; Shiobara, Ryoichi;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Dynamic pressure bearing
The present invention was specifically attempted for fully overcoming the above-mentioned problems. Namely, an object of the invention is to constitute a bearing for a polygonal mirror used as an opti... Read More
Inventors: Itoh, Masao; Shibuya, Satoshi; Kamimura, Naoji;, Assignee: Konica Corporation (JP) |
Rotating rectifier assembly
This invention provides a rotating rectifier assembly which is compact in size and rugged in construction such that it is capable of withstanding the forces associated with high-speed operation. Diode... Read More
Inventors: Pollard, David D.;, Assignee: Westinghouse Electric Corp. (Pittsburgh, PA) |
Rotating rectifier assembly
I claim: 1. A rotating rectifier assembly comprising: a generally tubular housing; at least one diode subassembly including at least one diode semiconductor device, a support means affixed to the at l... Read More
Inventors: Pinchott, Gordon A.;, Assignee: Sundstrand Corporation (Rockford, IL) |
Direct current motor assembly with rectifier module
Among the several aspects and features of the present invention may be noted the provision of an improved dc motor assembly. This assembly reduces the number of components and avoids discrete conducto... Read More
Inventors: Kitahata, Roy S.;, Assignee: The Chamberlain Group (Elmhurst, IL) |
Rotating rectifier assembly
I claim: 1. In a method of assembling a rotating rectifier assembly comprising axially loading components of the rectifier assembly which are arranged within a tubular housing of the housing of the as... Read More
Inventors: Pinchott, Gordon A.;, Assignee: Sundstrand Corporation (Rockford, IL) |
Generator rotor cooling
What is claimed is: 1. A generator comprising: a stator including a main armature; a rotor journalled for rotation within said stator, said rotor including (a) a main field winding, (b) an exciter arm... Read More
Inventors: Vaghani, Vallabh V.; Flygare, Wayne A.;, Assignee: Sundstrand Corporation (Rockford, IL) |
Transformer and rectifier module with half-turn secondary windings
I claim: 1. A transformer module, having a half-turn secondary winding, comprising: a transformer core having first and second through holes, in parallel, passing through the transformer core from a f... Read More
Inventors: Herbert, Edward;, Assignee: |
Heat sink for rectifier
The primary object of the present invention is to provide an improved heat sink to uniformly distribute heat generated by the diodes. In the heat sink, holes are created for dice of diodes. Diodes may... Read More
Inventors: Shih, Chun-Min; Chen, Yi-Ching;, Assignee: Kalem Technology Corporation (Taipei, TW) |
Generators or Motors 
