Abstract: Chemical reactor comprising an educt space with inlet means for feeding at least one educt stream into said space: a product space with outlet means for removing at least one product stream from said space: a plurality of parallel tubes extending from the educt space to the product space in an axial direction, forming a tube bundle, wherein the tubes comprise at least one heterogeneous catalyst: a cooling liquid space surrounding at least a section of the tube bundle, wherein said space has an inlet and an outlet spaced from the inlet at least in the axial direction, and wherein the cooling liquid space defines a cooling liquid flow path between inlet and outlet: n cooling liquid temperature measuring devices MD(i), i=1 . . . n, n>2, inside the cooling liquid space, wherein MD(i+1), is located upstream of MD(i) in the cooling liquid flow path.

Abstract: A pedelec bottom bracket drive unit includes a rigid drive housing and a tolerance compensation sheet-metal spring which is arranged to stand substantially in a vertical plane. The tolerance compensation sheet-metal spring includes at least one fixing point at a housing side and at least one mounting point for fastening the tolerance-compensating sheet-metal spring to a pedelec-frame-side drive mount. The at least one fixing point has a fixing point traverse axis. The tolerance compensation sheet-metal spring is fixed to the rigid drive housing at the at least one fixing point at the housing side. The at least one mounting point has a mounting point traverse axis. The at least one mounting point is arranged offset with respect to a next adjacent fixing point of the at least one fixing point as viewed from the fixing point traverse axis and from the mounting point traverse axis.

Abstract: A pedelec bottom bracket drive unit includes a rigid drive housing and a tolerance compensation sheet-metal spring which is arranged to stand substantially in a vertical plane. The tolerance compensation sheet-metal spring includes at least one fixing point at a housing side and at least one mounting point for fastening the tolerance-compensating sheet-metal spring to a pedelec-frame-side drive mount. The at least one fixing point has a fixing point traverse axis. The tolerance compensation sheet-metal spring is fixed to the rigid drive housing at the at least one fixing point at the housing side. The at least one mounting point has a mounting point traverse axis. The at least one mounting point is arranged offset with respect to a next adjacent fixing point of the at least one fixing point as viewed from the fixing point traverse axis and from the mounting point traverse axis.

Abstract: A pressure sensor (1) is specified, comprising a housing (2), a membrane (3), which forms with the housing (2) a chamber (4) closed off toward the outside, and a filling opening (6) for filling the chamber (4) with a fluid medium (5). The filling opening (6) is closed by means of a soldering or welding closure (7, 8). Furthermore, a method for producing a pressure sensor (1) is specified, wherein a housing (2), which together with a membrane (3) forms a chamber (4), is provided, the chamber (4) is filled with a fluid medium (5) through a filling opening (6), and the filling opening (6) is subsequently closed by means of soldering or welding.

Abstract: A pressure sensor (1) is specified, comprising a housing (2), a membrane (3), which forms with the housing (2) a chamber (4) closed off toward the outside, and a filling opening (6) for filling the chamber (4) with a fluid medium (5). The filling opening (6) is closed by means of a soldering or welding closure (7, 8). Furthermore, a method for producing a pressure sensor (1) is specified, wherein a housing (2), which together with a membrane (3) forms a chamber (4), is provided, the chamber (4) is filled with a fluid medium (5) through a filling opening (6), and the filling opening (6) is subsequently closed by means of soldering or welding.

Abstract: A pressure sensor has a substrate with conductor tracks for contact-connecting electrical components. The pressure sensor has a measuring element for converting a mechanical measurement variable into an electrical signal and a signal converter for processing the electrical signals from the measuring element further. Furthermore, the pressure sensor has a first diaphragm which, together with the substrate, forms a first closed cavity which contains an inert filling medium. At least one side of the measuring element of the pressure sensor, which comprises an active surface, has direct contact with the filling medium in the first cavity. The signal converter is arranged on the substrate in the form of an unhoused integrated circuit.

Abstract: A pressure sensor has a substrate with conductor tracks for contact-connecting electrical components. The pressure sensor has a measuring element for converting a mechanical measurement variable into an electrical signal and a signal converter for processing the electrical signals from the measuring element further. Furthermore, the pressure sensor has a first diaphragm which, together with the substrate, forms a first closed cavity which contains an inert filling medium. At least one side of the measuring element of the pressure sensor, which comprises an active surface, has direct contact with the filling medium in the first cavity. The signal converter is arranged on the substrate in the form of an unhoused integrated circuit.

Abstract: A piston-cylinder unit, which erects a swingable roll bar in a crash situation by an ejection spring, includes a controllable drive by which the movement and the direction of movement of the piston can be controlled and which can be disengaged in the event of a crash pulse, whereupon the piston extends rapidly by virtue of the ejection spring.