Abstract: The disclosure relates to a method for controlling a first electric motor (M1) and a second electric motor (M2) of a wheel drive module, wherein the wheel drive module comprises a wheel (R) and a speed modulation gearbox (G), and wherein the wheel (R) is drivable about a wheel axis (A) jointly by the first and the second electric motors (M1, M2) by means of the speed modulation gearbox (G) and steerable about a steering axis (L) which is orthogonal to the wheel axis (A), wherein electrical control signals for controlling the first and second electric motors (M1, M2) are determined from wheel reference values which characterize the driving and/or the steering of the wheel (R).

Abstract: The disclosure relates to a high-speed radial fan and to a rotor assembly (10) for a high-speed radial fan, comprising a bearing tube (20) which is axially open in the interior and in which a shaft (40) carrying a fan wheel (30) is mounted with a rotor (50), wherein the rotor (50) of the rotor assembly (10) is mounted in a cylindrical separating can (3).

Abstract: A radial fan (1) is provided with a motor (2) and a fan housing, an outer part (4) and an inner part (5) that form a spiral-like pressure chamber (D). A pressure connector (33) which forms an outlet (44) of the radial fan (1) is arranged on the outer part. The fan housing is equipped with a fan wheel (3) which is arranged on a shaft (7) connected to the motor (2), wherein an annular flow divider (8) which surrounds the fan wheel (3) is arranged adjacently to the fan wheel (3) in a radial direction. The flow divider together with the fan housing forming a diffuser (9), which transitions directly into the pressure chamber (D), about the fan wheel (3).

Abstract: A wheel drive module (1) is provided for driving and steering a wheel (30), comprising the wheel (30), a first drive motor (11), a second drive motor (21), and a transmission. The wheel (30) can be driven and steered simultaneously by the first drive motor (11) and the second drive motor (21) via the transmission, wherein a first motor shaft (12) for driving the transmission extends from the first drive motor (11) in a first motor shaft direction (12?), a second motor shaft (22) for driving the transmission extends from the second drive motor (21) in a second motor shaft direction (22?), the first motor shaft direction (12?) and the second motor shaft direction (22?) are opposite each other, and the first drive motor (11) and the second drive motor (21) extend parallel to the first and second motor shaft directions (12?, 22?) over a common overlap section (Ü).

Abstract: A motor housing (2) has a shaft section to receive a motor shaft (4) and a motor section to receive motor electronics (5) and motor windings (6). The shaft section and the motor section are separated from each other in a sealed manner by a separating pot (7) arranged in the motor housing (2). A metal ball bearing pot (8) with a ball bearing (9) is arranged in the separating pot. The ball bearing pot (8) lies indirectly against a motor housing section that is connected to the outer surroundings, via the separating pot (7). Thus, the motor housing functions as a cooling body. Accordingly, heat generated by the ball bearing (9) during operation is dissipated onto the motor housing and the outer surroundings, via the ball bearing pot (8) and the separating pot (7).

Abstract: The invention relates to a method for producing a drive unit device, in particular a fan device, which has at least one first modular unit (12) and at least one second modular unit (16), which concentrically accommodates at least a portion of the first modular unit (12), with the first and second modular units (12, 16) being intended to contribute mechanically to a change in torque, and the first modular unit (12) being secured in the second modular unit (16) in at least one method step (100, 110). To increase safety and reduce process costs, it is proposed that the first modular unit (12) be secured in the second modular unit (16) by means of at least one concentric pressing process step.

Abstract: The invention relates to an orbital pump for pumping a fluid, wherein the pump comprises at least one pump control system, a motor that can be controlled by the pump control system, a rotor shaft (10) for fluid transport, and a rotor sensor for detecting an absolute angle of rotation of the rotor shaft (40), the rotor sensor is connected to the pump control system and designed to transmit the angle of rotation of the rotor shaft (40) to the pump control system, and the pump control system is designed to rotationally control the rotor shaft (40) by means of the motor until the rotor shaft (40) is in a pre-determined angle of rotation position.

Abstract: A motor assembly has an outer stator (40), a rotor assembly (30), a separating can (50), and a first bearing (36) and a second bearing (37). The rotor assembly (30) has an inner rotor (32) and a shaft (31) and defines an axial direction (77) and a radial direction (78) of the motor assembly (20). The motor assembly (20) has a magnetic air gap (53) between the outer stator (40) and the inner rotor (32). The separating can (50) has a split tube component (51) and a separating can base part (52). The split tube component (51) has a split tube section (54). The split tube section (54) extends through the magnetic air gap (53). The outer stator (40) is arranged around the split tube section (54). The split tube section (51) and the separating can base part (52) overlap in a first predefined axial region (55). A seal (60) is provided between the split tube section (51) and the separating can base part (52) in the first predefined axial region (55).

Abstract: A blower unit, particularly for an apparatus for assisting respiration, comprises a housing (2), an impeller (1) accommodated in an impeller chamber (3) in the housing (2), and a motor (12), connected to the impeller (1) via a shaft (15), which is accommodated in a motor chamber (13) in the housing (2). The motor (12) is fixed between walls (14, 18) of the motor chamber (13) by means of buffers, with at least one of the buffers being a sealing ring (16) which separates the shaft (15) from a passage for cooling air (33) which, in radial section, extends annularly around the motor (12).

Abstract: A printed circuit board module (10) has a printed circuit board (20) with a first side (21), a second side (22) and a contact hole (30). A sleeve-type via (32) is provided in the contact hole 30. An annular ring (35, 36) is associated with the via (32), on at least one side (33, 34). The annular ring (35, 36) is arranged on the first side (21) or on the second side (22) of the printed circuit board (20). The annular ring (35, 36) is electrically connected to the via (32). The annular ring (35, 36) has an annular ring edge (40), at least in sections. The printed circuit board module (10) has a solder resist layer (50). It extends, at least in sections, from outside the annular ring edge (40) over the annular ring edge (40) to an outer region (42) of the annular ring (35, 36). An inner region (44) not covered with the solder resist layer (50), remains on the annular ring (35, 36).

Abstract: An internal rotor for an electric motor has a laminated rotor core with a multiplicity of rotor plates, and multiple pockets in each of which pocket a rotor magnet is at least partially arranged. The rotor plates have first recesses for forming the pockets and at least a first rotor plate which has at least a second recess associated with a first recess. A sprung web-shaped clamping element is formed between the second recess and the associated first recess, and tensioned toward the second recess by the associated rotor magnet to apply a force to the associated rotor magnet toward the first recess in order to hold the associated rotor magnet in the pocket. A rotor plate holds a rotor magnet in a pocket of a laminated rotor core.

Abstract: The present disclosure relates to a modular system for producing drives, in particular piece goods conveyor drives, with different drive properties, comprising at least one first group of transmission units, said first group comprising at least one transmission unit, at least one second group of motor units, said second group comprising at least one motor unit, and a third group of electronic units, said third group comprising at least one electronic unit for actuating the motor unit, wherein the groups can be combined together in order to produce the drive.

Abstract: A blocking device (1) for a fan that blocks a direction of rotation of a rotor (70), via which a wheel of the fan can be driven. The blocking device has a bearing tube (10), a rotor shaft (60) and a freewheel sleeve (50). The freewheel sleeve (50) is accommodated in the bearing tube (10) and is connected to the rotor shaft (60), which extends through the freewheel sleeve (50), for conjoint rotation. The freewheel sleeve (50) blocks rotation of the rotor shaft (60) at least in relation to the bearing tube (10) in the direction of rotation of the rotor.

Abstract: A planetary gear device including an axially rotation-protected thrust washer is described herein. The planetary gear device includes gear components revolving around an axis of rotation, wherein the gear components include a planet gear, as well as a planetary carrier for the planet gear. The planetary gear device also includes a gear housing encasing the revolving gear components, a thrust washer supported around or at the axis of rotation, and a rotation protection, by means of which the thrust washer can be positioned so as to be rotation-protected. The rotation protection is an axially-engaging rotation protection, and the thrust washer is arranged such that the axially-engaging rotation protection is provided relative to the planetary carrier and/or relative to the gear housing by means of an axially-protruding protrusion at an interface between the thrust washer, the planetary carrier, and/or the gear housing.

Abstract: An axial ventilator (1) has a housing (2) and a fan wheel (3) arranged in the housing (2) to generate an axial air flow through the housing (2). The fan wheel (3) has multiple fan wheel blades (4) that extend radially outward from a hub (5) up to a respective blade tip (8). The blades extend spaced apart from an inner wall of the housing (2) via a head gap (12). The fan wheel blades (4) have boreholes (7) along the respective blade tip (8).

Abstract: A stator device with a plurality of windings, on a winding carrier, that electromotive interaction with a rotor. The windings are parallel to one another and to the center axis. The windings can be individually electrically contacted with winding terminals of a winding wire. The windings are assigned to at least two disk-shaped and/or ring-shaped electrically conductive interconnection rings so that they are electrically insulated from one another. The winding terminals are connected using the interconnection ring assigned to this terminal polarity (U; V; W) for external permanent common contact by welding hooks formed on the radial inner side on the interconnection ring. A ring-shaped deflection disk, with deflection pins, is provided in the axial direction on the interconnection end disk.

Abstract: A position detection device determines the position of the diaphragm or the drive piston of an electric-motor-driven diaphragm pump, in particular, by detecting the upper and lower reversal point (Po, Pu) in the movement curve of the diaphragm of the diaphragm pump. A diaphragm is actuated by a drive connecting rod to close a conveying chamber with valves provided on an inlet and outlet side. The volume can be changed between a minimum and maximum volume. A rotational movement of an electric motor, with a rotor, is converted into the actuation movement of the drive connecting rod via the effect of the eccentrics. The position detection device detects the load curve of the diaphragm pump during the movement of the diaphragm. An evaluation device determines at least the position of the upper and lower reversal point of the diaphragm from the load curve.

Abstract: A set of parts for a radial fan has a fan wheel (2), a main housing part (1), and a complementary housing part (3). They can be assembled to form a first housing that encloses the fan wheel (2). The housing has an inlet opening (27) and an outlet (23). At least one second complementary fan wheels (2?, 2?) (3?, 3?), the shape of which differs from the first fan wheel part (2), can be connected to the motor instead of the fan wheel (2).

Abstract: A radial fan (1) or centrifugal blower is provided having a fan housing (2) with a spiral pressure chamber (D) and a rotor assembly (10) comprising an internally axially open bearing tube (20), in which a shaft (40) carrying a fan wheel (30) is mounted with a rotor (50) of a canned motor. An air-guiding channel (L) between a first pressure-chamber region (2a) and a second pressure-chamber region (2b) of the spiral pressure chamber (D) is formed between the bearing tube (20) and the wall (W) of the canned motor, so that an air flow flows through the air-guiding channel (L) from one pressure-chamber region (2a, 2b) to the other and in the process dissipates heat from the bearing tube (20) into the pressure chamber (D).