Patent application number | Description | Published |
20090036249 | FLYWHEEL HAVING LUBRICATION-FLOW PASSAGEWAY - A flywheel includes a hub portion concentrically defined around a center of the flywheel. A body portion located peripherally around the hub portion has a driver-side face and a driven-side face. A plurality of passageways in the body portion extend through the flywheel and fluidly connect the driver-side face with the driven-side face. Each of the plurality of passageways is adapted to receive a flow of lubricant spilling onto the driver-side of the body portion when the flywheel is rotating, and to expel lubricant out of the driven-side face of the body portion. | 02-05-2009 |
20090127946 | Cooling jacket and stator assembly for rotary electric device - An electric motor/generator cooling mechanism is presented. The cooling mechanism includes a hollow cooling jacket having an inner and outer coaxial surface, where the inner surface defines a generally cylindric cavity for receiving a stator in heat transference contact with the inner surface, and the outer surface has a cast spiral groove section with jogged cooling passages. The disclosure includes an outer case having one or more inlet ports, an outlet port, and a vent for purging air, cooling fluid flowingly encased between the cooling jacket and the outer case, flowing through the jogged cooling passages, and a flanged end surface on an end of the outer case for boltingly connecting the cooling jacket to the outer case. | 05-21-2009 |
20120024656 | FLYWHEEL HAVING LUBRICATION-FLOW PASSAGEWAY - A method of lubricating a clutch disposed on a driven-side of a flywheel that is connected to a crankshaft includes rotating the flywheel and providing a flow of lubrication fluid spilling onto a driver-side of the flywheel. At least a portion of the flow of lubrication fluid is received through at least one passageway extending through the flywheel and expelled from the passageway on a driven-side of the flywheel. A clutch disposed on the driven-side of the flywheel is lubricated with the expelled lubrication fluid. | 02-02-2012 |
20120228043 | Machine Having Electrical Power System And Centered Drive Coupling For Same - A machine, such as an electrically powered track type tractor, includes an engine configured to rotate a generator. A drive coupling has a first element fixed to rotate with the engine and a second element fixed to rotate with the generator. The first and second elements are configured to rotationally couple together for transmitting torque from the engine to the generator, but configured to allow relative slip between the first and second elements. The relative slip may occur during engine start up as rotational rates pass through a range associated with the excitation of resonance torsional vibrations. A centering ring has a radial outer surface in contact with the first element and a radial inner surface in contact with the second element. The centering ring assists in avoiding an off center drive coupling arrangement while electrically isolating the first element from the second element. | 09-13-2012 |
20120248904 | UNIFORM CONTAINED COOLING FOR STATOR - A liquid-cooled stator and rotor assembly for use as an electric motor or generator includes a housing having a first end bell, a second end bell, and at least one fluid orifice in the first end bell. A stator is fixed within a stator cavity of the housing. The stator includes a stator core and a plurality of windings for conducting a flow of electricity. A rotor for magnetically interacting with the stator is also included, the rotor being rotatably mounted between the first end bell and the second end bell within a rotor cavity. A first sealing ring and a second sealing ring are provided to form a fluid seal against the respective end bells and against a portion of the stator such that a cooling fluid entering the stator cavity via the orifice does not enter the rotor cavity. | 10-04-2012 |
Patent application number | Description | Published |
20160096548 | ELECTRIC DRIVE MOTOR MODULE - An electric drive system including an electric drive motor module. The electric drive motor module includes an electric drive planetary gear assembly, and an electric motor having a rotor shaft. The electric drive system further includes a first output member, a second output member, and a reaction member operatively associated with the rotor shaft. | 04-07-2016 |
20160096563 | ELECTRIC DRIVE RETROFIT KIT - The present disclosure relates to an electric drive retrofit kit for a high drive track-type tractor. The electric drive retrofit kit may include a rear entry electric drive motor module that includes an electric drive planetary gear assembly and a second electric drive planetary gear assembly which can be inserted into a rear final drive cavity of a frame housing for a high drive track-type tractor. The electric drive retrofit kit may further include a generator, a cooling package, an additional water pump, a steering pump, a steering motor, power inverters with control modules, and electric cables. | 04-07-2016 |
20160097185 | REAR ENTRY ELECTRIC DRIVE MOTOR MODULE - A method for retrofitting a high drive track-type tractor with a rear entry electric drive motor module. The method includes inserting the rear entry electric drive motor module into a frame housing. The rear entry electric drive motor module includes an electric drive planetary gear assembly, and an electric motor. The method further includes attaching a reaction member to the rear entry electric drive motor module. | 04-07-2016 |
Patent application number | Description | Published |
20090009013 | Cast groove electric motor/generator cooling mechanism - An electric motor/generator cooling mechanism is presented. The cooling mechanism includes a hollow cooling jacket having an inner and outer coaxial surface, where the inner surface defines a generally cylindric cavity for receiving a stator in heat transference contact with the inner surface, and the outer surface has a cast spiral groove section with jogged cooling passages. The disclosure includes an outer case having one or more inlet ports, an outlet port, and a vent for purging air, cooling fluid flowingly encased between the cooling jacket and the outer case, flowing through the jogged cooling passages, and a flanged end surface on an end of the outer case for boltingly connecting the cooling jacket to the outer case. | 01-08-2009 |
20100164310 | Liquid cooled permanent magnet rotor - A permanent magnet rotor for an electrical generator includes a rotor shaft and a rotor core mounted coaxially upon the rotor shaft. The rotor core defines a plurality of longitudinal core passages which include a segment of a rotor cooling circuit, and further includes a permanent magnet outer core component mounted on an inner core component and including a plurality of permanent magnets. A cooling liquid containment mechanism for the permanent magnet rotor includes a first liquid containment cover coupled to the inner core component and a second liquid containment cover coupled to the inner core component. The liquid containment covers are configured to contain cooling liquid passed from an inlet segment of the rotor cooling circuit defined by the rotor shaft into the plurality of longitudinal core passages, and thenceforth into an outlet segment of the rotor cooling circuit also defined by the rotor shaft. The liquid containment covers are mounted on the inner core component at locations radially inward of a cylindrical outer surface thereof. | 07-01-2010 |
20110149459 | ELECTRICAL BEARING GROUND DEVICE - An assembly, system and method are provided for discharging a rotating shaft encompassed by a stationary housing. The system includes an annular charge-dissipating component and a biasing element oriented to apply an axial force to the charge-dissipating component, holding it in contact with the shaft and the housing while the shaft is rotating. The biasing element may be a coil spring or a wave spring. A shaft grounding upgrade kit includes a conductive ring member and a cylindrical spring having a diameter that is the same as that of the conductive ring member. The spring constant of the cylindrical spring is such that the spring holds the conductive ring member within the housing in contact with the shaft and the housing. The conductive ring member may be constructed of gray iron and the cylindrical spring is one of a wave spring and a coil spring. | 06-23-2011 |
20110308071 | Liquid Cooled Permanent Magnet Rotor - A permanent magnet rotor for an electrical generator includes a rotor shaft and a rotor core mounted coaxially upon the rotor shaft. The rotor core defines a plurality of longitudinal core passages which include a segment of a rotor cooling circuit, and further includes a permanent magnet outer core component mounted on an inner core component and including a plurality of permanent magnets. A cooling liquid containment mechanism for the permanent magnet rotor includes a first liquid containment cover coupled to the inner core component and a second liquid containment cover coupled to the inner core component. The liquid containment covers are configured to contain cooling liquid passed from an inlet segment of the rotor cooling circuit defined by the rotor shaft into the plurality of longitudinal core passages, and thenceforth into an outlet segment of the rotor cooling circuit also defined by the rotor shaft. The liquid containment covers are mounted on the inner core component at locations radially inward of a cylindrical outer surface thereof. | 12-22-2011 |