U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 290/39 - Rotary field and armature


Subclass of Class 290 - Prime-mover dynamo plants
Definition: Electric-control prime-mover dynamo plants including a dynamo
No. of patents: 8
Last issue date: 06/17/2008


NumberTitleIssue Date
7388300Starter-generator operable with multiple variable frequencies and voltages
A starter-generator system is configured to be operable at multiple variable frequencies. The starter-generator includes a rotor and a stator. The rotor is configured to rotate and has a single main field winding wound thereon. The stator has at least a first stator...
06/17/2008
7368826Electro-hydraulic unit, in particular for anti-lock devices for automotive vehicle wheels
An electro-hydraulic unit (10) in particular for an automotive vehicle anti-locking wheel device, includes two separate parts: an electronic control (13) within which is located particularly an electronic card (14
05/06/2008
7358622Distributed power generation system using a fuel cell and a method of controlling the same
Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical r...
04/15/2008
6930430Armature support structure of starter for automotive engine
A starter for an internal combustion engine is provided which includes a pair of angular contact ball bearings used to support an armature shaft. The bearings are disposed close to opposed ends of a core of an armature. The core has disposed thereon coils which defi...
08/16/2005
6909262Control system for regulating exciter power for a brushless synchronous generator
A control system regulates power to a brushless synchronous generator (BSG) (204) having a permanent magnetic generator (PMG)(210), an exciter (208) and a main generator (206) connected to a rotating shaft (212). The generator cont...
06/21/2005
5907204Power supply terminal structure for starter magnet switch
In a starter, a power supply terminal connected to a solenoid coil of a magnet switch and connectable to a starter external circuit is provided on an end cover. The power supply terminal includes a terminal metal member, a bimetal which interrupts electri...
05/25/1999
5495162Position-and-velocity sensorless control for starter generator electrical system using generator back-EMF voltage
A detector for detecting rotor position of a brushless generator having a motive power shaft, a permanent magnet generator (PMG) having a set of armature phase windings and a main generator portion having a set of armature phase windings includes a circui...
02/27/1996
4093869Quadrature axis field brushless exciter
Method and apparatus for accelerating a large inertia load from rest to a predetermined speed of rotation by means of a synchronous dynamoelectric machine. A synchronous dynamoelectric machine, such as a turbine generator, which is mechanically coupled to...
06/06/1978
 
Sign InRegister
Username  
Password   
forgot password?