Abstract: A coolant pump that includes: a rotating slide ring, which is arranged on the pump impeller towards an axial end of the entry opening; a static slide ring, which is arranged on the pump housing around the mouth of the inlet opposite the rotating slide ring; the rotating slide ring has a sliding surface and the static slide ring has a sliding surface, the sliding surfaces are facing one another and form a sliding bearing that receives a force directed axially away from the pump impeller to the pump housing; and a microstructure for creating a hydrodynamic lubricating film between the sliding surfaces is formed on at least one of the sliding surfaces facing one another, the microstructure includes cavities that collect liquid coolant on the at least one sliding surface.

Abstract: The invention relates to a shaft bearing having a seal arrangement to prevent steam leakages that can occur in the event of temperature fluctuations or pressure fluctuations between a liquid medium on the one side and a gaseous medium on the other side of the compact bearing, wherein, between a primary radial seal and a rotation bearing portion, a lubrication space surrounding a shaft circumference is arranged that receives a volume of lubricating grease that has a higher viscosity than a lubricating oil and a coolant; and a volume compensator for compensating a temperature-dependent volume fluctuation is provided that comprises a compressible material, and is arranged vertically in interaction with the volume of the lubricating oil and/or the volume of the lubricating grease.

Abstract: An electric coolant pump (1) conveys cooling fluid in order to cool a combustion engine of a vehicle. The electric coolant pump (1) has a pump impeller (2) for accelerating the coolant to be conveyed, a rotor shaft (3) on which the pump impeller (2) is fixed, an electric motor (6), having a stator (8) and a rotor (7), for driving the rotor shaft (3). A control circuit (13) controls the electric motor (6). A pump housing (10) accommodates at least the control circuit (13) and the electric motor (6). The coolant to be conveyed is able to flow through the pump housing (10). The coolant to be conveyed thereby flows around the stator (8), the rotor (6) and the control circuit (13).

Abstract: Pump module, particularly for a temperature management system, and temperature management system comprising the pump module, and motor vehicle comprising the pump module or the temperature management system The invention relates to a pump module, in particular a liquid fluid pump module for a temperature management system (100), e.g. of an electric battery-driven motor vehicle or a hybrid motor vehicle, comprising: at least one electrically driven fluid pump unit (2) which is configured and provided to supply fluid to be pumped to at least one actuatable fluid valve means (3); a control device (ECU) for actuating at least one drive motor (7) of the fluid pump unit (2), wherein the control unit (ECU) also comprises at least one electrically actuatable operating solenoid (31) for a pilot valve (20), which solenoid is configured and provided to hydraulically operate the fluid valve means (3) by means of the pilot valve (20) during normal use of the pump module (1).

Abstract: A fluid pump, in particular for a temperature management system, of an electric battery-driven motor vehicle or of a hybrid motor vehicle, having at least one first pump assembly configured and provided for pumping a first fluid medium; and at least one second pump assembly configured and provided for pumping a second fluid medium; wherein the first pump assembly and the second pump assembly are provided as orbiter eccentric piston pumps, particularly as two-row orbiter eccentric piston pumps with respectively phase-shifted orbiter eccentric pistons and are coupled with a single drive motor in a drivable manner.

Abstract: The invention relates to a shaft seal (1) which is configured to seal a shaft (2) between a coolant side (8) and a dry side (9) in a water pump. The shaft seal (1) is particularly characterized in that a compressible volume compensator (7) for compensating a temperature-dependent volume fluctuation is provided, which is vertically disposed and interacting with the volume of a barrier fluid (6).

Abstract: The invention relates to a temperature control device for a battery bank module (5). In addition to a temperature control circuit (50), which has a plurality of channels which are in thermal contact with battery cells, and a heat exchanger, the temperature control device also comprises a pump (1). The pump (1) comprises a spindle housing (10) and at least one screw spindle (2a, 2b) which is coupled to a dry-rotor-type electric motor (3).

Abstract: An electric screw coolant pump for integration into a temperature control circuit of an assembly of which the temperature is to be controlled. An accommodation housing includes a feeder line and a return line of the temperature control circuit, which open into a cavity. A part of the cavity surrounds a spindle housing and communicates with an outlet opening of the spindle housing as well as the feeder line. A sealing element, which provides a seal between a suction side and a pressure side, is arranged towards an end surface of the axial end of the inserted spindle housing.

Abstract: The invention relates to a shaft bearing having a seal arrangement to prevent steam leakages that can occur in the event of temperature fluctuations or pressure fluctuations between a liquid medium on the one side and a gaseous medium on the other side of the compact bearing, wherein, between a primary radial seal and a rotation bearing portion, a lubrication space surrounding a shaft circumference is arranged that receives a volume of lubricating grease that has a higher viscosity than a lubricating oil and a coolant; and a volume compensator for compensating a temperature-dependent volume fluctuation is provided that comprises a compressible material, and is arranged vertically in interaction with the volume of the lubricating oil and/or the volume of the lubricating grease.

Abstract: A sliding bearing having a sealing arrangement for water pumps, configured to radially mount and seal a shaft in a housing between a wet side and a dry side. The sliding bearing and the sealing arrangement include a sliding bearing bushing made of a sintering material for radial mounting of the shaft, and a dry-side shaft seal arranged between the sliding bearing bushing and the dry side. A wet-side shaft seal is arranged between the wet side and the sliding bearing bushing and a lubricant reservoir with a substrate, made of a non-sintered material, which is porous in at least some sections, is arranged at least between the wet-side shaft seal and the sliding bearing bushing. The lubricant reservoir includes, in pores of the substrate, a lubricant insoluble in water. A volume of the lubricant reservoir and a volume of a lubricant filling take up a total volume of spaces between the wet-side shaft seal and the dry-side shaft seal.

Abstract: A stator of a brushless DC motor includes a stator core with stacked stator laminations each including an annular surface and stator teeth evenly spaced in a circumferential direction about a longitudinal axis of the stator and each including a tooth root and a tooth head. Current-carrying windings defining coils are on the tooth bases of the stator core. The stator core includes three different types of the stator laminations which include corresponding openings cooperating to define cooling channels each extending parallel or substantially parallel to the longitudinal axis from one end to another of the stator core.

Abstract: A pump device for a cooling circuit of an internal combustion engine of a commercial or motor vehicle includes two electric pumps in parallel, each of which includes a switchable backflow valve in a suction line, so that the electric pumps can be operated selectively individually or in parallel.

Abstract: A pump device for a cooling circuit of an internal combustion engine of a commercial or motor vehicle includes two electric pumps in parallel, each of which includes a switchable backflow valve in a suction line, so that the electric pumps can be operated selectively individually or in parallel.

Abstract: An electrical coolant pump, preferably for use as an additional water pump in a vehicle, is characterised in that a radial bearing of the shaft, which is arranged between the pump impeller and the rotor, is provided by means of a radial sintered sliding bearing having a defined porosity lubricated by coolant, and a shaft seal is arranged between the radial sliding bearing and the motor chamber, wherein at least one coolant flow channel with a predetermined depth is provided in the sintered sliding bearing in an axial direction extending from the end of the sintered sliding bearing on the side of the pump chamber.

Abstract: An electrical screw spindle coolant pump is suitable for conveying a coolant circuit or other corrosive, liquid media. The electrical screw spindle coolant pump has a spindle housing with a spindle chamber and an axially adjacent motor housing. The motor housing has a motor chamber, in which a dry-running electric motor is arranged separated from the flow current. The motor housing has a thermal transition portion through which the flow current flows. The thermal transition portion is arranged between the motor chamber and a component boundary of the motor housing to the spindle housing.

Abstract: A controllable screw spindle pump for the lubricating oil supply of an internal combustion engine comprises a pump housing (1), in which a throttle chamber (13) and a control chamber (14) are configured which are in contact with the lubricating oil to be conveyed; wherein the throttle chamber (13) is arranged between the pump inlet (10) and the spindle chamber (12), and the throttle chamber (13) comprises a throttle valve (3), by way of which a throughflow cross section of a conveying stream can be set; and the control chamber (14) comprises a hydraulic control valve (4) with a piston (40) which responds to a hydraulic control pressure (p1, p2) in the control chamber (14), and the control chamber (14) is oriented parallel to the spindle chamber (12) in relation to an actuating travel of the piston (40); and a valve body (30) of the throttle valve (3) is coupled to the piston (40) of the hydraulic control valve (4).

Abstract: A compact bearing is produced by a sliding bearing and has a sealing arrangement for water pumps. The bearing includes a sliding bearing bushing that includes an inner sliding surface and a radial recess having an axial sliding surface, a shaft collar, and a wet-side shaft seal arranged between the wet side and the sliding bearing bushing. A dry-side shaft seal is arranged between the sliding bearing bushing and the dry side. A lubricant reservoir with a substrate, which is porous in at least some sections, is arranged between the wet-side shaft seal and the sliding bearing bushing. The lubricant reservoir includes, in pores of the substrate, a lubricant insoluble in water, and a volume of the lubricant reservoir and a volume of a lubricant filling a total volume of spaces between the wet-side shaft seal and the dry-side shaft seal.

Abstract: An electric coolant pump to cool battery packs of a battery-powered motor vehicle includes an electric motor with a shaft. The electric coolant pump includes a screw spindle pump with a drive spindle and at least one secondary spindle. The drive spindle is connected to the shaft of the electric motor in a rotationally fixed manner.

Abstract: A rolling bearing having a sealing arrangement, preferably as a compact bearing and seal for water pumps, is proposed having two axially adjacent rolling-element rows between an outer ring and a shaft bearing section, and a wet-side shaft seal and a dry-side shaft seal. A lubricant reservoir with a substrate that is porous in at least some sections is arranged circumferentially in a radial contact to the shaft section and the outer ring; wherein the lubricant reservoir in pores of the substrate, includes a lubricant insoluble in water, and a volume of the lubricant reservoir and a volume of a lubricant filling with the lubricant take up a total volume of spaces between the wet-side shaft seal and the dry-side shaft seal.

Abstract: A glanded pump to pump a pumped medium includes a motor to drive a pump shaft of the glanded pump about a longitudinal axis, a controller connected to the motor to control the motor, a pump housing to contain the pumped medium and in which an impeller is provided, and a sealing flange that seals off the pump housing from the motor. The controller is connected to the sealing flange on a side remote from the impeller, and the controller includes a printed circuit board and a ring capacitor thereon, the ring capacitor extending in the longitudinal direction between the printed circuit board and the sealing flange and being in direct contact with the sealing flange in order to provide a thermally conductive contact.