Abstract: An automotive electronic flow pump includes a rotating pump wheel, a pump housing, an axial-flux motor, a static separation wall, and a motor electronics. The pump wheel has an axial fluid inlet at a wheel upstream front side and a radial fluid outlet. The pump housing defines a pumping chamber and an electronics chamber. The axial-flux motor directly drives the pump wheel and is arranged within the pumping chamber. The axial-flux motor includes a motor stator having at least one stator coil, and a motor rotor arranged at a front side of the pump wheel which co-rotates with the pump wheel. The static separation wall is arranged at a backside of the pump wheel. The static separation wall fluidically separates the pumping chamber from the electronics chamber. The motor electronics is arranged in the electronics chamber and is directly electrically connected to the at least one stator coil.

Abstract: An automotive electric liquid pump module for pumping a coolant liquid in a coolant circuit of an automobile. The automotive electric liquid pump module includes a first electrical flow pump unit having a flow pump wheel which is directly driven by an electric motor, and a passive deaerator unit having a liquid inlet, a liquid outlet, a deaerator housing which defines a first widened deceleration chamber, and a deaeration opening which is arranged at a vertical top of the first widened deceleration chamber. The deaerator housing is mechanically directly and stiffly connected to the electrical flow pump unit.

Abstract: An automotive electric liquid pump includes a pumping section with a pump rotor, a motor section axially aligned with the pumping section, an electronics cooling circuit, a rotor shaft, and a pump cover housing part. The motor section has a motor control electronics which drives a dry electromagnetic motor stator, and a wet permanently-magnetized motor rotor separated therefrom via a separation wall. The electronics cooling circuit cools the motor control electronics. The rotor shaft supports the pump rotor and the motor rotor, is part of the internal electronics cooling circuit, and is provided as an axial liquid pipe with a motor-sided axial shaft opening and a pump-sided shaft axial opening. The pump cover housing part is mounted to a pump housing and has a throttle groove providing a fluid connection between the axial opening and a static low-pressure pump inlet chamber or with a static high-pressure pump outlet chamber.

Abstract: A bearing seat arrangement for an automotive auxiliary device. The bearing seat arrangement includes a static support structure, a separate bearing seat element which is press-fitted into the static support structure so as to provide a press-fitted connection, and an adhesive bond which axially fixes the separate bearing seat element.

Abstract: An automotive pendulum-slider pump for providing a pressurized lubricant. The automotive pendulum-slider pump includes a non-rotatable rotor housing, a rotor ring which rotates within the rotor housing and which encloses a pumping chamber which includes a suction opening, a discharge opening, and an automatically switching pressure adaption valve, a rotor hub which is connected with the rotor ring to co-rotate therewith, and pendulum vanes which are arranged over a circumference of the rotor ring. The pendulum vanes are pivotably hinged via a respective pendulum hinge at the rotor ring. The pendulum vanes fluidically separate the pumping chamber into pumping compartments. The automatically switching pressure adaption valve of the pumping chamber pre-opens a fluidic connection between at least one of the pumping compartments and the discharge opening immediately before the at least one of the pumping compartments has arrived at the discharge opening.

Abstract: An automotive electric auxiliary device includes an electronic high-voltage motor which is driven by an electronic high voltage power circuit, an electronic low-voltage control circuit which is galvanically isolated from the electronic high-voltage power circuit, and a wake-up unit which wakes-up the electronic high-voltage power circuit. The wake-up unit includes a low-voltage wake-up input port which receives a single wake-up flank, and an inductive coupling element which inductively transmits the single wake-up flank to a releasable latch unit. The releasable latch unit transforms the single wake-up flank to a set constant high-voltage activity signal level for indicating a non-sleeping mode to the electronic high-voltage power circuit.

Abstract: A passive automotive coolant liquid deaerator unit for deaerating a circulating coolant liquid of a coolant circuit of an automobile. The passive automotive coolant liquid deaerator unit includes a deaerator housing which defines a first deceleration chamber. The first deceleration chamber has a chamber liquid inlet, a chamber liquid outlet, and a deaeration opening which is arranged at a vertical top of the first deceleration chamber. A fluidic cross section of the first deceleration chamber is arranged to continuously increase between the chamber liquid inlet and the chamber liquid outlet.

Abstract: A passive automotive coolant liquid deaerator unit for deaerating a circulating coolant liquid of a coolant circuit of an automobile. The passive automotive coolant liquid deaerator unit includes a deaerator housing which defines a deceleration chamber, and a baffle plate which is arranged substantially horizontally within the deceleration chamber. The deceleration chamber has a chamber liquid inlet, a chamber liquid outlet, and a deaeration opening which is arranged at a vertical top of the first deceleration chamber. The chamber liquid inlet is arranged vertically higher than the chamber liquid outlet. The baffle plate is arranged vertically between the chamber liquid inlet and the chamber liquid outlet.

Abstract: A method for driving a single-phase electric motor includes switching drive electronics to a first on-state during a first on-time interval of a pulse width modulation period, switching the drive electronics to a second on-state during a second on-time interval of the pulse width modulation period, switching the drive electronics to an off-state between the first and second on-time intervals, and measuring the phase current with a current sensor. The first and the second on-time interval of one pulse width modulation period are provided with different interval lengths if a defined effective duty cycle is lower than a first duty cycle threshold value so that one of the first and the second on-time interval has an interval length which is equal to or larger than a defined minimum on-time interval length. The phase current is measured during the first and/or second on-time interval with the defined minimum on-time interval length.

Abstract: A controllable mechanical motor vehicle coolant pump includes a rotatable drive shaft co-rotatably connected with a coolant pump wheel, a transverse housing surface extending transversely with respect to and surrounding the drive shaft, a cylindrical inner slider support surface radially surrounding the drive shaft, a control slider which is axially shiftable with respect to the coolant pump wheel so as to control an effective discharge flow cross-section thereof, and a push-out pressure chamber. The push-out pressure chamber is arranged between a slider bottom wall of the control slider and the transverse housing surface, is defined at one axial side by the transverse housing surface and radially inwardly by the cylindrical inner slider support surface, and is pressurized to generate a push-out push force which pushes the slider bottom wall toward the coolant pump wheel. A first housing element defines the transverse housing surface and the inner slider support surface.

Abstract: An automotive fluid pump arrangement includes a pump unit having an axial pump unit stop surface, and a mounting device which supports and mounts the pump unit. The mounting device has a support part having a ring-shape. The support part radially encloses, supports, and provides a vibration-decoupling of the pump unit. The support part has an axial support part stop surface which corresponds to and which cooperates with the axial pump unit stop surface so as to axially stop the pump unit in an axial mounting direction, a mounting part which attaches the mounting device to a corresponding motor vehicle mounting structure, and a tensioned friction enhancing longitudinal lip ring which is arranged to surround the pump unit utricularly so as to frictionally lock the pump unit in an axial dismounting direction.

Abstract: A variable mechanical automotive coolant pump includes a rotatable rotor shaft, an impeller wheel which is co-rotatably connected with the rotor shaft, a static guiding cylinder, a control sleeve, and at least one guiding device. The impeller wheel has a discharging radial outside. The control sleeve has a hollow-cylindrical control sleeve body having a radial outside. The control sleeve does not rotate and is guided axially slidable within the static guiding cylinder so as to regulate a flow rate of the variable mechanical automotive coolant pump by closing or opening the discharging radial outside of the impeller wheel. The at least one guiding device guides the radial outside of the control sleeve within the static guiding cylinder.

Abstract: A variable displacement lubricant pump for providing a pressurized lubricant for a motor vehicle. The pump includes a pump rotor which rotates about a rotor axis and a control ring which is shiftable. The pump rotor includes a pump rotor shaft, a rotor body having vane slits, and pump vanes which are arranged in and which axially slide in the vane slits. The control ring can be actuated to set an eccentricity of the control ring to define a volumetric pump performance. The control ring defines a pump chamber which is separated by the pump vanes into pumping compartments. The control ring includes a control ring main body, bushing rings which are arranged separately at a radial inside of the control ring main body, and a radial inlet opening and/or a radial outlet opening. The radial inlet opening and/or the radial outlet opening is/are arranged axially between the bushing rings.

Abstract: An automotive electric auxiliary unit includes an electric motor. The electric motor includes a motor rotor which rotates about a rotor axis, a multi-piece motor stator having stator coils, stator teeth, and a separate ring-shaped magnetic back iron ring, and a plastic motor housing. The separate ring-shaped magnetic back iron ring radially surrounds the stator teeth and is attached to the stator teeth. The separate ring-shaped magnetic back iron ring is overmolded by the plastic motor housing.

Abstract: An automotive electrical liquid pump includes a pump housing which is defined by a pump housing body, a static heat-conducting separating can having a can part and a radial can flange part, an electric motor which drives the automotive electrical liquid pump, a printed circuit board with electronic components for driving the electric motor, and a non-rotatable heat-conducting cooling sleeve. The separating can fluidically separates a wet zone from a dry zone within the pump housing. The electric motor comprises a non-rotatable motor stator arranged within the dry zone and a rotatable motor rotor arranged in the wet zone. The motor rotor is co-rotatably connected to an impeller wheel via a rotatable rotor shaft. The cooling sleeve is arranged to circumferentially surround the motor stator within the dry zone and to be in a direct physical heat-transferring contact with each of the motor stator and the separating can.

Abstract: An automotive fluid pump arrangement includes a pump unit having an axial pump unit stop surface, and a mounting device which supports and mounts the pump unit. The mounting device has a support part having a ring-shape. The support part radially encloses, supports, and provides a vibration-decoupling of the pump unit. The support part has an axial support part stop surface which corresponds to and which cooperates with the axial pump unit stop surface so as to axially stop the pump unit in an axial mounting direction, a mounting part which attaches the mounting device to a corresponding motor vehicle mounting structure, and a tensioned friction enhancing longitudinal lip ring which is arranged to surround the pump unit utricularly so as to frictionally lock the pump unit in an axial dismounting direction.

Abstract: A variable mechanical lubricant pump provides a pressurized lubricant for an internal combustion engine. The lubricant pump includes a delivery port which is fluidically connected to the engine, a control ring which shifts between a maximum and a minimum eccentricity position, a pump rotor having slidable vanes which rotate in the control ring, a control ring preload spring which pushes the control ring into the maximum eccentricity position, a hydraulic control chamber which pushes the control ring into the minimum eccentricity position, a pressure galley pump port fluidically connected to the engine, and an overpressure valve fluidically associated with the delivery port. The pressure gallery pump port charges the hydraulic control chamber with a gallery pressure to control a remote gallery pressure of the engine via a control chamber pressure in the hydraulic control chamber. The overpressure valve opens if an applied lubricant pressure exceeds a predefined maximum pressure limit.

Abstract: An electric coolant pump for providing an automotive cooling circuit with a coolant includes an electric motor to drive the electric coolant pump, a pump housing, a separating can, a printed circuit board, and permanently height-adjusted supporting elements. The separating can includes a substantially plane separating can bottom wall which lies in a cross plane, and a substantially cylindrical separating can shell which fluidically separates a wet zone from a dry zone. The printed circuit board is arranged substantially parallel to and not in direct contact with the separating can bottom wall so that an axial gap exists which is filled with a heat conductive means. The supporting elements axially support the plane printed circuit board. Each supporting element has a distal tip which is trimmed to define a height-constant axial gap having a nominal gap height between the printed circuit board and the separating can bottom wall.

Abstract: A variable mechanical automotive coolant pump includes a rotatable rotor shaft, an impeller wheel which is co-rotatably connected with the rotor shaft, a static guiding cylinder, a control sleeve, and at least one guiding device. The impeller wheel has a discharging radial outside. The control sleeve has a hollow-cylindrical control sleeve body having a radial outside. The control sleeve does not rotate and is guided axially slidable within the static guiding cylinder so as to regulate a flow rate of the variable mechanical automotive coolant pump by closing or opening the discharging radial outside of the impeller wheel. The at least one guiding device guides the radial outside of the control sleeve within the static guiding cylinder.

Abstract: An electric coolant pump includes a pump housing, an electric motor, and a pump wheel. The pump housing has a pumping chamber and a motor chamber which are separated by a separation sidewall. The pumping chamber has a pump volute which extends from a pump inlet to a pump outlet. A volute cooling sector of the pump volute extends over a volute angle of 120°. The separation sidewall has a cooling section which is defined by the volute cooling sector. The electric motor includes a motor rotor, a motor stator having a stator coil arrangement, and a motor electronics arranged in the motor chamber which energizes the stator coil arrangement. The pump wheel is arranged in the pumping chamber and is connected with the motor rotor. The stator coil arrangement is arranged adjacent to the volute cooling sector and thermally contacts the cooling section of the separation sidewall.