Abstract: A pump system is disclosed. The pump system may have a power source, a pump, and a torque converter configured to fluidly couple an output rotation of the power source to an input rotation of the pump. The pump system may also have a sensor configured to generate a signal indicative of an output flow rate of the pump, and a controller in communication with the sensor and the power source. The controller may be configured to selectively adjust a speed of the power source based on the signal.

Abstract: An electric motor is disclosed that includes a rotor having an axis and being rotatable about the axis. A stator is positioned about the rotor and includes a plurality of laminates with each laminate in the plurality of laminates including a peripheral edge defining a notch. The plurality of laminates includes a plurality of laminate subsets, with the laminates in each laminate subset arranged with the notches aligned to define a passage. The laminate subsets are arranged such that the passages defined by the laminate subsets form a substantially helical channel along the periphery of the stator.

Abstract: An electric machine for a work machine is disclosed. The electric machine has a housing with at least one fluid passageway, a stator fixedly disposed within the housing, and a rotor rotatingly disposed radially inward from the stator. The rotor has a first axial bore, a first radial passageway, a second axial bore, and a second radial passageway. The first axial bore is in fluid communication with the at least one fluid passageway of the housing. The first radial passageway is in fluid communication with the first axial bore and configured to communicate fluid from the first axial bore with the stator. The second axial bore is in fluid communication with the at least one fluid passageway of the housing. The second radial passageway is in fluid communication with the second axial bore and configured to communicate fluid from the second axial bore with the stator.

Abstract: An electric drive system is provided having first and second output members and a driving shaft having an axis or rotation. A plurality of electric motors are arranged adjacent to the driving shaft. Each motor has an output shaft in driving engagement with and substantially parallel to the driving shaft. A differential steering system is operably disposed between the driving shaft and the first and second output members. The differential steering system includes a first planetary gear assembly operably engaged both between the driving shaft and the first output member and between the driving shaft and the second output member. The first planetary gear assembly has an axis of rotation that substantially aligns with the axis of rotation of the driving shaft. A steering motor is operatively engaged with the differential steering system and operable to simultaneously adjust the relative rotational speed of the first and second output members.

Abstract: A cooling system for an electric motor includes a cooling duct formed between a cooling jacket and a separate component surface. The separate component surface may define at least a portion of a wall of the cooling duct. The cooling duct may be configured to direct a cooling liquid along at least a portion of the separate component surface and draw heat from the electric motor. An inlet port may be in fluid communication with the cooling duct. The inlet port may be configured to receive the cooling liquid and to introduce the cooling liquid to the cooling duct. An outlet port may be in fluid communication with the cooling duct.