| Patent application number | Description | Published |
|---|
| 20080265700 | High current capacity rectifier package - Disclosed is a dynamoelectric machine having improved heat dissipation capabilities. The dynamoelectric machine includes a three-phase stator winding with a rectifier assembly electrically connected to the stator winding. The rectifier assembly includes an end frame having at least one negative diode contained therein and a positive heat sink which has at least one positive diode disposed therein. Connecting the negative diodes and positive diodes is a terminal assembly. The terminal assembly includes one or more electrically conductive and heat dissipative straps. The straps electrically connect one or more negative diodes and one or more positive diodes. Also disclosed is a method for dissipating heat from a rectifier of a dynamoelectric machine. | 10-30-2008 |
| 20080265707 | ELECTRIC MACHINE AND ROTOR FOR THE SAME - Disclosed herein is an electric machine rotor. The rotor includes, a rotatable shaft, a plurality of pole segments attached to the shaft, and a plurality of magnets attached to the plurality of pole segments such that one of the plurality of magnets is positioned circumferentially between adjacent pole segments and each of the plurality of magnets has nonparallel circumferentially opposing sides. | 10-30-2008 |
| 20090002105 | INTEGRATED SOLENOID AND IGNITION MAGNETIC SWITCH - A solenoid includes a solenoid housing defining a solenoid centerline; and an ignition magnetic switch including an ignition magnetic switch coil disposed at least partially within the housing, the ignition magnetic switch coil having a magnetic field that encompasses the solenoid centerline. | 01-01-2009 |
| 20090033161 | AIRFLOW COOLING PATTERN FOR BELT-DRIVEN VEHICLE ELECTRICAL POWER GENERATOR - A belt-driven electric machine for a vehicle includes a front housing including at least one front housing opening and a rear housing including at least one rear housing opening. The electric machine further includes at least one fan capable of urging cooling air into the electric machine through the at least one front housing opening and out of the electric machine through the at least one rear housing opening. A method for cooling a belt-driven electric machine for a vehicle includes urging cooling air into the electric machine at substantially the front of the electric machine. The cooling air is flowed substantially rearward in the electric machine, and heat is radiated from the electric machine into the cooling air. At least a first portion of the cooling air is expelled from the rear of the electric machine in a substantially axial direction. | 02-05-2009 |
| 20090033167 | MAGNET SUPPORT AND RETENTION SYSTEM FOR HYBRID ROTORS - Disclosed is a rotor assembly for an electric machine includes a rotor core. The rotor core has at least one magnet slot with an increasing slot width as radial distance from a rotor shaft increases, and at least one slot lip extending at least partially across the slot width. The rotor assembly also includes at least one permanent magnet located in at least one magnet slot, the magnet having an increasing magnet width as radial distance from a rotor shaft increases. The rotor assembly further includes a retainer disposed in the magnet slot radially between the magnet and the at least one slot lip. Also disclosed is a method of securing at least one permanent magnet in a rotor assembly of an electric machine. | 02-05-2009 |
| 20100072838 | COIL SUPPORT FOR ROTATING ELECTRICAL MACHINE - Disclosed is a coil support for an electrical machine including a shank having a first outer diameter configured to support a field coil of the electrical machine and a base located at one end of the shank. The base has a second outer diameter greater than the first outer diameter and includes a plurality of recesses configured to increase a cooling flow through the electrical machine. Further disclosed is an electrical machine including the coil support and a method for cooling an electrical machine. | 03-25-2010 |
| 20110175495 | ELECTRIC MACHINE WITH ISOLATED GROUND ELECTRONICS - An electrical system for a vehicle comprises a battery including a positive terminal and a negative terminal, and an alternator. The alternator includes a metal housing with a rotor and a stator positioned within the housing. The alternator further includes an electronics package positioned on the alternator housing. The electronics package includes a regulator and a rectifier, the rectifier including a plurality of negative diodes and a plurality of positive diodes. The plurality of positive diodes are positioned on a first diode carrier that is electrically connected to the negative terminal of the battery. The plurality of positive diodes are positioned on a second diode carrier that is electrically connected to the positive terminal of the battery. The first diode carrier is separated from the housing by an electrical insulation member positioned between the first diode carrier and the housing. | 07-21-2011 |
| 20110215681 | Airflow Passage Arrangement for Claw-Pole Electric Machines - An electric machine includes a stator and a rotor configured to rotate about an axis of rotation in a direction of angular rotation. The rotor includes a first claw-pole segment and an opposing second claw-pole segment. The first claw-pole segment includes a plurality of fingers extending from an end ring. Each finger includes a distal end and a proximal end with the proximal end fixed to the end ring. Each finger also includes an interior side and an exterior side with the exterior side facing the stator. A leading side and a trailing side are defined on each finger by the direction of angular rotation. A chamfer is formed on the exterior trailing side of each finger at the proximal end of the finger. | 09-08-2011 |
| 20110254392 | ALTERNATOR WITH DUAL AXIAL AIR FLOW - A vehicle alternator comprises a rotor and a stator positioned within a housing. The housing includes a front face, a rear face, and a outer wall extending between the front face and the rear face. The front face includes a plurality of air inlet holes, and the rear face including a plurality of air outlet holes. The outer wall is void of air holes that extend through the outer wall. The rotor is positioned within the housing and configured to rotate about an axis. The stator is positioned within the housing between the rotor and the outer wall of the housing. The stator includes a core with an outer surface, a front end and a rear end. A plurality of substantially axial air passages are positioned between the outer wall of the housing and the outer surface of the stator core. | 10-20-2011 |
| 20110260562 | Solenoid with Reverse Turn Spool Hub Projection - A solenoid arrangement for a starter motor includes a plunger configured to move in an axial direction and a coil positioned radially outward from the plunger. The coil is wound on a spool that includes a first end and a second end with a hub extending between the first end and the second end. A projection is positioned on the hub of the spool. The coil engages the projection in such a manner that a winding direction of the coil is reversed at the projection. | 10-27-2011 |
