摘要:
A solenoid for a vehicle starter comprises a pull-in coil and a hold-in coil positioned axially adjacent to the pull-in coil. A plunger is positioned within the pull-in coil and configured to move in an axial direction when the pull-in coil is energized. The plunger is separated from a plunger stop in the axial direction by an air gap when the pull-in coil and the hold-in coil are not energized. When the pull-in coil and hold-in coil are energized, a shoulder of the plunger moves in an axial direction toward the plunger stop. The pull-in coil is positioned in the solenoid such that it is removed from the plunger stop in the axial direction. In contrast, the hold-in coil encircles the plunger stop.
摘要:
A winding apparatus for a segmented core having a plurality of stator teeth includes a mounting fixture configured to support select ones of the plurality of stator teeth. The mounting fixture is configured to rotate about an axis defined by each of the plurality of stator teeth. The winding apparatus also includes a plurality of stator tooth holding elements operatively connected to the mounting fixture. Each of the plurality of stator tooth holding elements are configured to retain a select one of the plurality of a stator teeth relative to the mounting fixture. The mounting fixture is selectively rotated about the axis of at least one of the plurality of teeth to apply wraps of wire to the one of the plurality of stator teeth while at the same time rotating others of the plurality of stator teeth that have already been wrapped with wire.
摘要:
An engine starter system is disclosed. The starter system includes an electric cranking motor having a shaft and configured to crank the engine. The starter system further includes a planetary-type reduction gear unit that has a starter motor ring gear. The starter system has a pinion mechanism mounted on the shaft and configured to selectively engage a ring gear of the engine. A clutch assembly is configured to transmit torque between the shaft and the pinion mechanism. The clutch assembly includes a current conducting material and the starter motor ring gear includes one or more permanent magnets. The starter system employs the principle of Lenz's law to reduce the overrunning rotational speed of the cranking motor upon disengagement of the pinion mechanism from the engine's ring gear after the engine has started.
摘要:
A starter solenoid comprises a solenoid cap defining a contact channel. A first terminal and a second terminal are provided on the solenoid cap. A contact is moveable within the channel between a first position where the contact touches the first and second terminals and a second position where the contact is removed from the first and second terminals. A shield is positioned in the channel to space the contact apart from the channel walls. The contact comprises a first terminal face connected to a second terminal face. The first and second terminal faces are configured to respectively contact the first and second terminals when the contact is in the first position. Opposing lips extend from opposite sides of the first terminal face with a curved shoulder provided between the first terminal face and each of the opposing lips.
摘要:
An engine starter comprises a housing with a planetary gear arrangement provided within the housing. The planetary gear arrangement includes a ring gear configured to pivot about an axis. The ring gear includes a face oriented substantially perpendicular to the axis, the face including a plurality of detents provided as a plurality of ribs and a plurality of depressions on the face. A torque limiter is positioned adjacent to the face of the ring gear within the housing of the engine starter. The torque limiter includes a plurality of projecting members engaging the plurality of detents on the ring gear when the ring gear pivots about the axis. The torque limiter is provided as a plate including a central hole, a body portion, and a perimeter portion. The plurality of projecting members comprise a plurality of spring fingers extending from the body portion at an angle.
摘要:
A method for implementing voltage regulation for an electrical generator device includes comparing an output voltage of the electrical generator device to a desired set point voltage thereof, and generating an output control signal configured to regulate a field current of the generating device. The output control signal is generated in accordance with a linear mode of operation during of one of an overvoltage condition and an undervoltage condition with respect to the desired set point voltage, and wherein the output control signal is automatically set to a predetermined value in a non-linear mode of operation during the other of the overvoltage condition and the undervoltage condition.
摘要:
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.
摘要:
Disclosed herein is a starter motor clutch. The clutch includes, a shell, a wedgable component support member operably positioned adjacent the shell, and at least one wedgable component positioned between the shell and the wedgable component support member. The at least one wedgable component is displaceable into engagement with the shell to lock the shell into synchronous movement with the wedgable component support member upon initial rotational movement of the wedgable component support member in either direction relative to the shell while allowing asynchronous movement of the shell relative to the wedgable component support member.
摘要:
A vehicle alternator and methods for controlling an amount of torque loading of the vehicle alternator on an engine are provided. The vehicle alternator utilizes a voltage regulator with a microprocessor to control an amount of torque loading, based on a rotational speed of a rotor of the alternator, or an amount of current output by the alternator, or both.
摘要:
An improved alternator rotor comprising a nonhomogenous steel rotor core, the nonhomogenous steel rotor core comprising a low carbon inner portion and a high carbon outer portion around the low carbon inner portion. An improved alternator rotor comprising a steel rotor core of nonhomogenous hardness, wherein an outer portion of the steel rotor core is harder than an inner portion of the steel rotor core.