Between Windings On Auxiliary Dynamo-electric Machines Patents (Class 318/42)
-
Patent number: 9018862Abstract: An alternating current rotating machine control device that shares information among power conversion devices and instruments. A power conversion system has a top level control device, a master station, multiple power conversion devices, instruments (such as a temperature sensor and a pressure sensor), and the like. The top level control device is connected to two of the power conversion devices by a first communication line. These power conversion devices have two or more communication functions, and are connected to a remaining power conversion device, a temperature sensor, and a pressure sensor by a second communication line.Type: GrantFiled: January 27, 2012Date of Patent: April 28, 2015Assignee: Fuji Electric Co., Ltd.Inventor: Nobuo Itoigawa
-
Patent number: 8963466Abstract: A fan array vibration control system may include a fan array having a plurality of fans, and a control unit operatively connected to the fans. The control unit is configured to operate the plurality of fans and detect a phase relationship among the plurality of fans. The control unit is configured to reduce the phase relationship among the plurality of fans in order to reduce vibrations within the fan array.Type: GrantFiled: October 8, 2012Date of Patent: February 24, 2015Assignee: Huntair, Inc.Inventor: Lawrence G. Hopkins
-
Patent number: 8183802Abstract: Embodiments of the present invention include a composite electromechanical machine which can operate as a motor, a generator (including dynamo or alternator), or any combination thereof. In an aspect, the present composite electromechanical machine comprises at least a double-sided magnetic plane (e.g., rotor or stator) to form two rotor/stator pairs, together with a controller to configure the multiple rotor/stator pair. The controller can configure or convert the multiple rotor/stator pairs into motors, generators, or nonoperation, and also can change the windings characteristics of the magnetic planes. The controller can add new functionality and characteristics to the present composite electromechanical machine. Other embodiments can also be included.Type: GrantFiled: January 5, 2009Date of Patent: May 22, 2012Inventor: Eric Stephane Quere
-
Dynamoelectric machine assemblies operable with serial communication signals and PWM control signals
Patent number: 8049456Abstract: A dynamoelectric machine assembly for connection to a system controller. The assembly includes at least one input contact for receiving a control signal from the system controller and a processor coupled to the input contact. The processor is configured to operate the assembly in a pulse width modulation (PWM) mode when the control signal is a PWM control signal and to operate the assembly in a serial mode when the control signal is a serial communication signal.Type: GrantFiled: August 29, 2008Date of Patent: November 1, 2011Assignee: Nidec Motor CorporationInventors: Prakash B. Shahi, Arthur E. Woodward, Mark E. Carrier -
Patent number: 7188008Abstract: A system for supervising the speed of at least one engine of an aircraft includes three independent information sources determining first, second and third values for an aerodynamic parameter of the aircraft and precision information indicating the precision of these values. A control unit acts on the operation of the engine, and a sensor measures a fourth value for the parameter. An arithmetic unit selects a control value by using the first, second, third and fourth values of the aerodynamic parameter and the precision information and uses the control value to determine a control sequence for the control unit. An information transmission network, to which the three independent information sources and the arithmetic unit are connected, permits a transmission of information between the sources of information and the arithmetic unit.Type: GrantFiled: January 27, 2004Date of Patent: March 6, 2007Assignee: Airbus FranceInventors: Christian Garnaud, Brice Fernandez
-
Patent number: 6907318Abstract: A multi-station robotic welding assembly includes a mounting platform, and a plurality of robots attached to the mounting platform and located in respective weld stations. Each of the robots includes an elongated movable arm and wrist. A welding torch is attached to each of the robots, and is adapted for being manipulated by the movable arm and wrist. A rotatable fixture base is located on the mounting platform, and is adapted for supporting a plurality of fixtures. Each of the fixtures is adapted for holding and positioning a workpiece for welding in respective weld stations. A base indexer is adapted for repeatedly rotating the fixture base by a predetermined degree, such that the fixtures are positioned within respective weld stations for an index interval sufficient to complete welding of the workpieces.Type: GrantFiled: January 9, 2003Date of Patent: June 14, 2005Assignee: Advanced Tubing Technology, Inc.Inventors: Michael L. Passmore, Douglas E. Smyth
-
Patent number: 6757586Abstract: An improved robot arrangement for performing predetermined tasks, such as paint finishing, features equipping a robot with a plurality of manipulatable arms, with at least two of the arms performing like operations. Alternatively, a plurality of commonly controlled manipulator arms may be provided by clustering a plurality of conventional single arm robots on a common mounting stand.Type: GrantFiled: September 5, 2001Date of Patent: June 29, 2004Assignee: ABB Automation Inc.Inventors: Dragoslav K. Milojevic, John K. Ashworth, Jan T. Nielsson
-
Patent number: 5719453Abstract: Apparatus controlling switching of a polyphase switched reluctance motor (M). There is a set (10-16) of windings for each motor phase, each set of windings including at least two separate windings (10A, 10B-16A, 16B). One winding (10B) from one set (10) of windings is connected together with one (12A) winding from another set (12) of windings to form a combined set (10C) of windings. Each winding from the one set of windings is connected only to the one winding from the other sets of windings thereby to produce a number of combined sets of windings corresponding to the number of motor phases. A motor controller (18) selectively energizes and de-energizes the combined sets of windings in a predetermined sequence through an inverter (20). One switch (22a) operated by the inverter is interposed between the controller and one side of each of the combined sets of windings; and, a second switch (22b) is interposed between the inverter and the other side of each of the combined sets of windings.Type: GrantFiled: September 20, 1996Date of Patent: February 17, 1998Assignee: Emerson Electric Co.Inventor: Gary E. Horst
-
Patent number: 4988930Abstract: A two motor assembly for driving two fan blades to move air through a heat exchanger comprising a first two speed DC motor comprising magnets for establishing a fixed magnetic field, an armature rotor rotatable to drive a first fan blade, a multiplicity of armature coil turns on the armature rotor, a commutator assembly on the armature rotor, and sets of brushes including a tap brush cooperating with the commutator assembly to alternatively operate the two speed DC motor (1) is a first speed mode wherein (A) a system voltage is applied and distributed across all of the multiplicity of armature coil turns to produce a net total back EMF and armature reaction interacting with the magnetic field to cause the armature rotor to rotate in the first speed mode and (B) a tap voltage intermediate the system voltage reduced across a predetermined number of armature coil turns less than all of the multiplicity of armature coil turns is provided through the tap brush and (2) a different second speed mode.Type: GrantFiled: April 25, 1990Date of Patent: January 29, 1991Inventor: George C. Oberheide
-
Patent number: 4208620Abstract: A twin electric motor drive for a grinding mill has substantially identical synchronous motors mechanically connected to the drive of the mill, and the stator winding which generates a revolving magnetic field in each motor comprises a plurality of phase windings each of which is energized from a separate phase of a polyphase power source and has first and second winding sections which are interconnected with the second and first winding sections respectively of the corresponding phase winding of the other motor to equalize the load between the motors.Type: GrantFiled: June 15, 1978Date of Patent: June 17, 1980Assignee: Siemens-Allis, Inc.Inventor: William L. Ringland