Abstract: The invention relates to an electrical fuse for rotary current generators, having a rectifier assembly (14) for supplying a DC network, in particular in motor vehicles. To achieve simple, cost-effective and rapid-response fuse performance in the event of an overload, it is provided that a fuse element (21) be disposed in a line strand, carrying all the generator current, between the rectifier assembly (14) and a DC connection terminal (22) of the generator.

Abstract: The invention concerns a semiconductor power element (diode 18) having a lead (11) and a safety fuse (12) situated in the main current path that blows when overheated, particularly for use in the electrical system of motor vehicles. In order to achieve a previously determined, purposeful disconnection of the endangered element in order to avoid consequential damages when semiconductor power elements become overloaded, it is proposed that a segment (11b) of the lead (11) and/or its points of contact in the main current path of the semiconductor be designed as a safety fuse (12) that blows when a specified, current-dependent temperature value is reached.

Abstract: The invention relates to an electrical fuse for rotary current generators, having a rectifier assembly (14) for supplying a DC network, in particular in motor vehicles. To achieve simple, cost-effective and rapid-response fuse performance in the event of an overload, it is provided that a fuse element (21) be disposed in a line strand, carrying all the generator current, between the rectifier assembly (14) and a DC connection terminal (22) of the generator.

Abstract: The invention concerns a bridge rectifier for rotary current generators, in particular for supplying the electrical system of motor vehicles. It comprises rectifier diodes and a printed circuit board comprising an insulator (23) basically designed in the shape of a plate, in which multiple connection conductors (24) are embedded between the diodes of the rectifier bridges, whereby sections of these connection conductors are designed to be bent extending out of the insulator and as fuses (25) that melt in case of electrical overload. In order to achieve the smallest possible tolerances for operation of the fuses, each of the fuses (25) is formed out of two conductor ends (24a)-bent to the outside-of the connection conductors (24) and a fuse element (29) connected with them that bridges the conductor ends.

Abstract: The invention concerns a semiconductor power element (diode 18) having a lead (11) and a safety fuse (12) situated in the main current path that blows when overheated, particularly for use in the electrical system of motor vehicles. In order to achieve a previously determined, purposeful disconnection of the endangered element in order to avoid consequential damages when semiconductor power elements become overloaded, it is proposed that a segment (11b) of the lead (11) and/or its points of contact in the main current path of the semiconductor be designed as a safety fuse (12) that blows when a specified, current-dependent temperature value is reached.

Abstract: In the permeable structure, which is built up of sheets, continuous channels are arranged in rows and between the rows of channels are formed flow spaces which at opposite sides are bounded bit cover plates. In the flow spaces (4) at least two successive transverse bridges (6) are arranged on the same level, the transverse bridges (6) in at least half of the sheets having a different length (B) and the channels (1) extending essentially perpendicular to the flow spaces (4).

Abstract: In the heat exchanger module, produced by stacking sheet cards provided with openings and subsequently joining the individual cards of the card stack, each sheet card (2) or group of sheet cards of the stack is arranged rotated about a common axis by an angle .alpha. of between 0.degree. and 30.degree. with respect to the preceding sheet card (2) or group of sheet cards, the openings (3) forming helical channels (4).

Abstract: In the board of ceramic material for the construction of permeable structures, the board has three rows of holes which extend parallel to one another and are arranged symmetrically to the axis of symmetry. Three recesses of differing length are arranged between the rows of holes. The recesses intersect the board edge, the longest and one of the two shorter ones opening out at the same board edge and the shortest being opposite the second longest. The webs remaining between the recesses or the recess and the board edge have a length of 25%.+-.0 to 6% in relation to the length of the board determined by the direction of the rows of holes. The boards are stacked in succession to form various layers of the plate heat exchanger as the holes of the stacked boards form continuous channels and the recesses form shallow channels which extend substantially transversely to the continuous channels.

Abstract: A solar collector panel arrangement includes a plurality of panels interconnected to form panel wings which in turn are secured in a symmetric fashion to a spacecraft, especially a satellite. At least the axially outermost panels forming the tip of a panel wing, are partially and/or fully foldable while the other panels of the wing are fully unfoldable. In the fully unfolded state of a wing all panels are located in a common plane in which also the system central axis is located. The two solar generator wings are so folded and structured or arrestable in certain positions that the entire center of gravity in the partially unfolded state remains in the same position as in the fully unfolded state and in the fully folded state.

Abstract: In a heat exchanger module of fired ceramic material produced from a stack of punched and laminated green ceramic cards, the stack comprises at least two cards. The cards have first cut-outs (1) which, in stacked cards, form tubular channels (12) and second cut-outs (2, 4, 7, 8) which are positioned around the first cut-outs (1) and which, in stacked cards, partially overlap with the second cut-outs (2, 4, 7) of adjacent cards. Channels (13) which lie in the plane of the cards and surround the tubular channels (12) are thus formed.

Abstract: An arrangement for feeding a fuel from a supply tank to an internal combustion engine, the arrangement comprises a motor; a multistage feed pump unit driven by the motor and including a flow pump having a rotor and a gerotor pump having an inner runner arranged so that the rotor and the inner runner have aligning axes of rotation and the flow pump is arranged upstream of the rotor pump as considered in the flow direction of a fuel, the rotor of the flow pump and the inner runner of the gerotor pump being located near one another as considered in an axial direction, the gerotor pump also having an outer runner which surrounds a feed chamber, and the rotor of the flow pump having a wall which axially limits the feed chamber surrounded by the outer runner of the gerotor pump.

Abstract: A fuel pump assembly is designed for mounting in the interior of a vehicle fuel tank. The assembly includes a reserve tank and a fuel pump mounted within the reserve tank with a noise dampening cylindrical intermediate layer. An intake chamber is formed by a filter screen which is mounted in the reserve tank surroundng the inlet of the fuel pump. A vent channel is provided bypassing the intermediate layers and connecting the intake chamber with a vent conduit for venting gases from the intake chamber of the fuel pump.