Patent application number | Description | Published |
20100111730 | Low-noise rotary pump - A rotary pump with a plastic pump housing, that can be processed by injection molding, with a first housing part defining a pump space, which is connected to a second intermediate housing part accommodating an electric motor with a wound core stator. The rotary pump includes a plastic split core, the wound claw pole stator being mounted on the split core and a permanent magnetic rotor being mounted to rotate within the split core. A plastic motor housing part defines a motor space, wherein at least three axial and parallel split core ribs are provided between the split core and the claw pole stator, the ribs being distributed about the periphery of the split core at predetermined angles relative to each other. A return ring has first and second end sections, the return ring being connected to the wound claw pole stator, so that the first and second end sections are welded to each other. The stator is press-fit onto the split core via the ribs. At least three axial-parallel housing ribs protrude radially inward and are formed with the motor housing part, the axial-parallel housing ribs being distributed on the inside periphery of the motor housing part. Finally, the stator is press-fit into the motor housing part via the housing ribs. | 05-06-2010 |
20130266462 | Pump Having an Integrated Electronically Commutated Direct Current Motor - A pump with an integral, electronically commutated, direct-current motor ( | 10-10-2013 |
20140152132 | ACTUATOR UNIT WITH CONDUCTOR STAMPING - An actuating drive having a housing which comprises receptacles for a step-down gear mechanism and for a very small electric motor, wherein the motor receptacle is connected to a terminal cover. The very small electric motor is held securely without play. The terminal cover comprises a conductor stamping which is encapsulated with plastic material and has motor contact areas which interengage with connection lugs of the very small electric motor, and in that the baffle plate has retaining regions which interengage with housing elements on the housing. | 06-05-2014 |
20150226270 | ELECTROMOTIVE DRIVE - Electromotive drive used with an electric motor having a rotor with a motor shaft in first and second bearings and a working shaft in third and fourth bearings. The drive includes a shaft coupling for joining the motor and working shafts to ensure transmission of torque and radial force from the motor shaft to the working shaft, centering the motor and working shafts, not transmitting any axial force and compensating for any misalignment of the motor and working shafts; a coupling-contiguous end shield; and a coupling-contiguous ball bearing having an outer ring, wherein the motor shaft is mounted axially by means of the ball bearing, and the outer ring of the ball bearing is not fixed radially to the end shield, so that there is no redundancy despite double mounting of the motor shaft to the first and second bearings and the working shaft to the third and fourth bearings. | 08-13-2015 |