摘要:
A multi-part piston ring, containing an at least single-part spring support which is provided with a piston ring joint region and an at least single-part spring element, which is positioned in a groove provided in the region of the inner circumferential face of the spring support, wherein the wall thickness of the spring support is essentially equal in the region of the ends of the spring support facing the piston ring joint and in the rear region of the spring support, and a pocket which extends over a circumferential range of at least 60° and is created by local reduction of the wall thickness of the spring support is provided in each case between the rear region and the piston ring joint ends.
摘要:
A filling neck to feed fuel into a motor vehicle tank using a filling nozzle, exhibiting the following features: a slotted drive ring comprising an insertion portion conically tapering toward the vehicle fuel tank, the cross-sectional constriction being less than the filling nozzle's cross-section; the drive ring, facing the fuel tank comprises, on at least one side of said gap, a locking segment; the drive ring is configured in floating manner in a cup-shaped housing portion of the filling neck, the outside diameter of said ring being less than the inside diameter of the cup-shaped housing portion; a sealing element is associated with the distal end of the drive ring, blocking access to the tank in its closed position; the drive ring's locking segment engages and keeps the sealing element in the locked position, and moves into the open position when said drive ring is expanded by the filling nozzle.
摘要:
The invention relates to a terminal strip (1) for telecommunications and data technology, comprising a housing and wire connection contacts (50, 60), first wire connection contacts (50) being accessible from the upper side (19) of the housing and second wire connection contacts (60) being accessible from the upper side (19) or from the lower side (29) of the housing, and electrical interfaces being accessible from the upper side (19) of the housing, which interfaces (70, 74) are connected to the first and/or second wire connection contacts (50, 60), the housing having a housing upper part (10), a housing lower part (20) and a housing central part (30, 30′), the housing central part (30, 30′) having receptacles, in which the first and second wire connection contacts (50, 60) and the electrical interfaces (70, 74) are partially guided and mechanically supported.
摘要:
A sliding element comprises at least one surface for sliding contact with a running face, wherein a wear layer and a run-in layer made from carbon are applied to the surface, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases. In a method for manufacturing a sliding element, the run-in layer is applied by means of a PVD process. A sliding system has an above-described sliding element and a body having a running face. A coating for a sliding element comprises a wear layer which can be applied to the upper side of the sliding element, and a run-in layer which is configured as a carbon layer, and is characterized in that the run-in layer comprises hydrogen and nanocrystalline carbide phases.
摘要:
The invention relates to a method for producing polymers, in particular synthetic nucleic acid double strands of optional sequence, comprising the steps: (a) provision of a support having a surface area which contains a plurality of individual reaction areas, (b) location-resolved synthesis of nucleic acid fragments having in each case different base sequences in several of the individual reaction areas, and (c) detachment of the nucleic acid fragments from individual reaction areas.
摘要:
The present invention relates to a weld-on fastener for an electrical contact with a weld nut (1) which, on its topside has an electric contact face (9) and, on its bottom side, has an annular axial projection (6) which surrounds a cavity (4) of a pre-determinable depth (T), and with a screw (3) screwed into the weld nut (1), which screw (3) also has an electric contact face (9), a spacer ring (2) being clamped between the contact faces (9). The spacer ring (2) preferably has a thickness (D) which is approximately equal to the depth (T) of the cavity (4). When the spacer ring (2) is clamped in, the screw (3) ends approximately flush with the end of the internal thread (12) of the weld nut (1). This combination is distinctive in that it has only a low overall height, no metal scabs reach the thread (12) during welding-on, the contact faces (9) are protected during assembly and the welded connection can absorb high torques even when welding onto thin work pieces (7).
摘要:
The invention relates to a method for the determination of analytes using carrier chips comprising arrays of different receptors in immobilized form on the surface of said chips. The method is performed dynamically in several cycles. Information obtained in a previous cycle on the modification or alteration of said receptors is used in the following cycle.
摘要:
A terminal, isolating or connecting strip for telecommunications and data technology, having contact elements and having a mounting apparatus. A terminal, isolating and connecting strip of the generic type is provided, by means of which very different circuit, protection and measurement tasks in telecommunications and data technology are ensured in a very small space, with an increased wiring density, reliably and with a high level of operator convenience and clarity, it being necessary to ensure reliable separation between the functional/work areas of network operators and subscribers, is achieved in that insulation-piercing terminal contact elements 7,8 are introduced into the two insulating bodies 3,4 which are arranged at an angle with respect to one another, which insulation-piercing terminal contact elements 7,8 are formed continuously over two planes and form two rows of terminal strips 1,2 which are at an angle with respect to one another, the lower insulating body 4 having latching elements 5,6 for latching onto a profile or the mounting bracket 9 in two latching positions.
摘要:
The invention relates to a steering angle adjusting device with an operating element for adjusting the steering angle as a function of a corresponding operating element actuating parameter. According to the invention, steering angle adjustment takes place as a function of the operating element actuating parameter with a sensitivity that decreases with decreasing coefficient of friction and/or the maximum adjustable value of the operating element actuating value decreases with a decreasing coefficient of friction and/or an increasing lengthwise speed of the vehicle.
摘要:
Polymerized liquid-crystalline compositions are obtainable by radiation curing of mixtures comprising P0 a) one or more cellulose derivatives in which some or all of the hydroxyl groups of the cellulose are replaced by --OR, 13 O--CO--NH--R, --O--CO--R or --O--CO--OR, where each R can be identical or different and is an aliphatic or aromatic radical of up to 20 carbons,b) one or more polymerizable monomers andc) if desired, further additives.