Abstract: The invention relates to a fluid friction clutch (1) having a housing (2, 3), having a clutch disk (4) which is rotatable relative to the housing (2, 3), and which is rotatably arranged on an end (5) of a shaft (6) which is mounted centrally within the housing (2, 3); having a working chamber (9) between the housing (2, 3) and the clutch disk (4); having a storage chamber (10) for clutch fluid; having a supply duct (11) which leads from the storage chamber (10) to the working chamber (9); having a stationary clutch part (13) relative to which the housing (2, 3) is rotatable; and having a pump element (14), wherein the pump element (14) defines a shear gap (12) with an annular wall (19) arranged in the storage chamber (10), wherein an active element (7) is fastened to the housing (2, 3), and wherein the shear rate in the shear gap (12) can be regulated by means of an electric motor (20) which is mounted on the shaft (6).

Abstract: A side brush for a robotic vacuum cleaner includes a brush core, a plurality of bristle clusters having a first length, and a plurality of further bristle clusters having a shorter length than the first length. The plurality of bristle clusters and the plurality of further bristle clusters are regularly distributed over a circumferential surface of the brush core.

Abstract: The invention relates to a fluid friction clutch (1) having a housing (2, 3) and a clutch disk (4), which is rotatable relative to the housing (2, 3), and which is rotatably arranged at one end (5) of a shaft (6) centrally supported inside the housing (2, 3), having a working chamber (9) between the housing (2, 3) and the clutch disk (4), having a storage chamber (10) for clutch fluid; and having a feed duct (11a, 11b), which leads from the storage chamber (10) to the working chamber (9), characterized by a supply pump element (14), which is rotatable relative to the housing (2, 3) and which is arranged, rotationally fixed, on the shaft (6), and which defines a shear gap (12) with the housing (2, 3); and by a valve (17), which is arranged in the feed duct (11), characterized in that an operative element (7) is arranged on the housing (2, 3).

Abstract: The invention relates to a coolant pump (15) having a pump wheel (13) which is arranged on a pump wheel shaft (3, 11); and having a drive device (1; 8, 9) for the pump wheel (13), which drive device has a mechanical drive (1) and which drive device has an electric-motor drive (8, 9), wherein the pump wheel shaft is divided into a driving section (3) and a driven section (11), and an openable and closable clutch (4) is arranged between the driving section (3) and the driven section (11).

Abstract: The invention concerns a viscous friction coupling (1) with a housing (2, 3) with a coupling disk (4) which is rotatable in relation to the housing (2, 3) and which is arranged on one end (5) of a shaft (6) mounted centrally within the housing (2, 3), which shaft carries a drivable active element (7) on its other end (8); with a working chamber (9) between the housing (2, 3) and the coupling disk (4); with a storage chamber (10) for coupling fluid; and with a supply channel (11) which leads from the storage chamber (10) to the working chamber (9); characterized by a supply pump element (14) which is rotatable in relation to the housing (2, 3) and is integrated in the coupling disk (4).

Abstract: The invention relates to a fluid friction clutch (1) having a housing (2, 3) and a clutch disk (4), which is rotatable relative to the housing (2, 3), and which is rotatably arranged at one end (5) of a shaft (6) centrally supported inside the housing (2, 3), having a working chamber (9) between the housing (2, 3) and the clutch disk (4), having a storage chamber (10) for clutch fluid; and having a feed duct (11a, 1b), which leads from the storage chamber (10) to the working chamber (9), characterized by a supply pump element (14), which is rotatable relative to the housing (2, 3) and which is arranged, rotationally fixed, on the shaft (6), and which defines a shear gap (12) with the housing (2, 3); and by a valve (17), which is arranged in the feed duct (11), characterized in that an operative element (7) is arranged on the housing (2, 3).

Abstract: A liquid friction clutch (1) having a housing (2, 3), a clutch disc (4)—rotatable relative to the housing (2, 3) and which is rotatably arranged on an end (5) of a shaft (6) which is mounted centrally within the housing (2, 3), which shaft (6) bears on its other end (8) a driveable active element (7). A working chamber (9) is positioned between the housing (2, 3) and the clutch disk (4). A storage chamber (10) is provided for the clutch fluid. A supply duct (11) leads from the storage chamber (10) to the working chamber (9). A stationary clutch part (13) relative to which the housing (2, 3) is rotatable, wherein a rotatably mounted pump element (14) is provided which, with the housing (2, 3), defines a shear gap (12).

Abstract: The invention relates to a coolant pump having an impeller which is arranged on a pump impeller shaft and having a drive device for the impeller, which drive device has a mechanical drive and an electric-motor drive. The impeller shaft is divided into a driving section and a driven section, and an openable and closable clutch is arranged between the driving section and the driven section. Operation of the coolant pump by either the mechanical drive or the electric-motor drive can be dependent upon a predetermined speed of threshold of rotation of the impeller, and/or upon a predetermined power usage threshold.

Abstract: The invention relates to a coolant pump having an impeller which is arranged on a pump impeller shaft and having a drive device for the impeller, which drive device has a mechanical drive and an electric-motor drive. The impeller shaft is divided into a driving section and a driven section, and an openable and closable clutch is arranged between the driving section and the driven section.

Abstract: The invention relates to a fluid friction clutch (1) having a housing (2, 3), having a clutch disk (4) which is rotatable relative to the housing (2, 3), and which is rotatably arranged on an end (5) of a shaft (6) which is mounted centrally within the housing (2, 3); having a working chamber (9) between the housing (2, 3) and the clutch disk (4); having a storage chamber (10) for clutch fluid; having a supply duct (11) which leads from the storage chamber (10) to the working chamber (9); having a stationary clutch part (13) relative to which the housing (2, 3) is rotatable; and having a pump element (14), wherein the pump element (14) defines a shear gap (12) with an annular wall (19) arranged in the storage chamber (10), wherein an active element (7) is fastened to the housing (2, 3), and wherein the shear rate in the shear gap (12) can be regulated by means of an electric motor (20) which is mounted on the shaft (6).

Abstract: A liquid friction clutch (1) having a housing (2, 3), a clutch disc (4) rotatable relative to the housing (2, 3) and which is rotatably arranged on an end (5) of a shaft (6) which is mounted centrally within the housing (2, 3), which shaft (6) bears on its other end (8) a driveable active element (7). A working chamber (9) is positioned between the housing (2, 3) and the clutch disk (4). A storage chamber (10) is provided for the clutch fluid. A supply duct (11) leads from the storage chamber (10) to the working chamber (9). A stationary clutch part (13) relative to which the housing (2, 3) is rotatable, wherein a rotatably mounted pump element (14) is provided which, with the housing (2, 3), defines a shear gap (12).

Abstract: A blow molding tool (1) for producing a plastic article, in particular a fuel tank, comprising at least one clamping frame (2) with mold clamping devices (3) and at least two blow mold halves, which are formed such that they can be moved together and apart by means of an opening and closing movement of the clamping frame (2) and which respectively have at least one cavity (8) for the forming of the plastic article, the blow molding tool (1) being distinguished by the fact that the mold clamping devices (3) respectively have at least one tool holder (6), in which a mold insert (7) is in each case exchangeably inserted, and in that the tool holders (6) respectively form a peripheral sealing edge (10).

Abstract: The invention provides nanoparticulate wax dispersions comprising wax solids having a solidification point of greater than 40 to 150° C., a process for preparing them, and a method of hydrophobicizing materials produced using fibers, chips or strands comprising or consisting of lignocelluloses and/or celluloses, by contacting them with the wax dispersions.

Abstract: The invention relates to a liquid friction clutch (1) having a housing (2, 3), having a clutch disk (4) which is rotatable relative to the housing (2, 3) and which is rotationally fixedly arranged on an end (5) of a shaft (6) which is mounted centrally within the housing (2, 3), which shaft (6) bears on its other end (8) a driveable active element (7); having a working chamber (9) between the housing (2, 3) and the clutch disk (4); having a storage chamber (10) for clutch fluid; having a supply duct (11) which leads from the storage chamber (10) to the working chamber (9); and having a stationary clutch part (13) relative to which the housing (2, 3) is rotatable, characterized by a supply pump element (14) which is rotatable relative to the housing (2, 3), which supply pump element is rotationally fixedly arranged on the shaft (6) and which supply pump element, with the housing (2, 3), defines a shear gap (12); and by a valve (17) which is arranged in the supply duct (11).

Abstract: An aqueous wax dispersion comprising a soft wax having an oil content of greater than 20 wt % and from 0.5 wt % to 10 wt % urea for use as a hydrophobizing agent in the production of timber products. The soft wax has a softening point of less than 65° C. and is solid at about 10° C. and below.

Abstract: The invention relates to a device for producing hollow bodies from thermoplastic material in which web- or strip-type preforms of plasticized plastics material are shaped in a multi-part tool which forms a mold nest, with two outer molds and a central mold which perform opening and closing movements with respect to one another. The central mold is provided with at least one device for receiving and manipulating components to be fastened in the interior of the hollow body by means of a material and/or form-fitting joint. Prior to the fastening of the components to the inner wall of the hollow body to be produced, the components are heated by means of a radiant heating device. The radiant heating device is advantageously integrated in the central mold of the tool.

Abstract: The invention relates to a method for producing hollow bodies from thermoplastic material in which web- or strip-type preforms of plasticised plastics material are shaped in a multi-part tool which forms a mould nest, with two outer moulds and a central mould which perform opening and closing movements with respect to one another. The central mould is provided with at least one device for receiving and manipulating components to be fastened in the interior of the hollow body by means of a material and/or form-fitting joint. Prior to the fastening of the components to the inner wall of the hollow body to be produced, the components are heated by means of a radiant heating device. The radiant heating device is advantageously integrated in the central mould of the tool.

Abstract: Thermal management systems for vehicle engines which include hybrid fan drives with viscous clutches and electronic motors, particularly brushless DC motors (BLDC). One embodiment incorporates a pulley driven, electronically controlled viscous clutch mechanism and an internal rotor BLDC motor. Another embodiment includes an engine crank mounted electronically controlled viscous clutch mechanism with a tethered electric motor, particularly a BLDC motor. A further embodiment is an engine block mounted electronically controlled viscous clutch mechanism with an integrated external rotor BLDC motor.

Abstract: The invention relates to a wood composition containing olefin and raw wood materials, the use of said olefins for rendering raw wood materials water repellent, and a method for producing wood materials therefrom. The raw wood materials contain or are made of lignocellulose and are provided in the form of fibers, strands, or chips.

Abstract: A liquid friction clutch (1) having a housing (2, 3), a clutch disc (4) rotatable relative to the housing (2, 3) and which is rotatably arranged on an end (5) of a shaft (6) which is mounted centrally within the housing (2, 3), which shaft (6) bears on its other end (8) a driveable active element (7). A working chamber (9) is positioned between the housing (2, 3) and the clutch disk (4). A storage chamber (10) is provided for the clutch fluid. A supply duct (11) leads from the storage chamber (10) to the working chamber (9). A stationary clutch part (13) relative to which the housing (2, 3) is rotatable, wherein a rotatably mounted pump element (14) is provided which, with the housing (2, 3), defines a shear gap (12).