Abstract: The present invention relates to the use of transition metal-carbene complexes in organic light-emitting diodes (OLEDs), to a light-emitting layer, to a blocking layer for electrons or excitons, or to a blocking layer for holes, each comprising these transition metal-carbene complexes, to OLEDs comprising these transition metal-carbene complexes, to devices which comprise an inventive OLED, and to transition metal-carbene complexes.

Abstract: The present invention relates to the use of transition metal-carbene complexes in organic light-emitting diodes (OLEDs), to a light-emitting layer, to a blocking layer for electrons or excitons, or to a blocking layer for holes, each comprising these transition metal-carbene complexes, to OLEDs comprising these transition metal-carbene complexes, to devices which comprise an inventive OLED, and to transition metal-carbene complexes.

Abstract: A coolant connection of a heat exchanger includes at least one male connector on the side of the heat exchanger and at least one connection stem on the side of the housing. The at least one connection stem is designed on its side fluidically away from the heat exchanger for the connection of a coolant line or as part of a coolant line and on its side toward the heat exchanger as a female connector for the at least one male connector. The coolant connection provides at least two circumferential sealing areas. The coolant connector has a connecting flange enclosing radial fluid lines arranged between the sealing areas which vent to the environment. In the event of a seal failure, coolant leakage may pass through the radial fluid lines to the environment, preventing coolant from bypassing the sealing areas into and air intake tract.

Abstract: A coolant connection (20) of a heat exchanger (12) arranged within a housing (10), a connection stem, a housing section and an intake manifold (10) are described. The coolant connection (20) includes at least one male connector (24) on the side of the heat exchanger (12) and at least one connection stem (26) on the side of the housing (10). The at least one connection stem (26) is designed on its side fluidically away from the heat exchanger (12) for the connection of a coolant line (47) or as part of a coolant line and on its side toward the heat exchanger (12) as a female connector (30) for the at least one male connector (24).

Abstract: A cover for a cylinder head of an internal combustion engine having a connecting element for attachment the cylinder head and a sealing element arranged between the cylinder head cover and the cylinder head. The connecting element is associated with a connecting area, and the sealing element is associated with a sealing area. The connecting area and the sealing area are constructed independently of each other and are spatially separated from each other, and the force vectors of the connecting force transmitted by the connecting element and the sealing force transmitted by the sealing element form an angle with each other.

Abstract: A cover for a cylinder head of an internal combustion engine having a connecting element for attachment the cylinder head and a sealing element arranged between the cylinder head cover and the cylinder head. The connecting element is associated with a connecting area, and the sealing element is associated with a sealing area. The connecting area and the sealing area are constructed independently of each other and are spatially separated from each other, and the force vectors of the connecting force transmitted by the connecting element and the sealing force transmitted by the sealing element form an angle with each other.

Abstract: An intake manifold arrangement for an internal combustion engine in which transverse channels (12) are arranged between the intake channels upstream from the cylinder intakes of a multi-cylinder internal combustion engine equipped with exhaust gas recirculation. The connections (2, 3) for the introduction of clean air into the intake channels, the transverse channels (12) and a connecting flange (4) for the exhaust gas recirculation line are integrated into a one-piece component (1), preferably made of cast aluminum, which can be mounted on the respective cylinder intakes of the internal combustion engine, particularly a V engine.

Abstract: An intake manifold arrangement for an internal combustion engine in which transverse channels (12) are arranged between the intake channels upstream from the cylinder intakes of a multi-cylinder internal combustion engine equipped with exhaust gas recirculation. The connections (2, 3) for the introduction of clean air into the intake channels, the transverse channels (12) and a connecting flange (4) for the exhaust gas recirculation line are integrated into a one-piece component (1), preferably made of cast aluminum, which can be mounted on the respective cylinder intakes of the internal combustion engine, particularly a V engine.

Abstract: The aim of the invention is to optimize, in vacuum interrupters, the connection area (12, 13, 14) between housing parts (2, 3, 4, 5), which are coaxially assigned to one another, with regard to the complexity of production for centering measures and with regard to the execution of the soldering process. To this end, a ring-like discoidal centering means (15) is used, which is made of a silver-coated copper and which comprises centering lugs (18) located on a tubular flange (17) that is arranged on the inner periphery of the centering means. Said centering lugs extend in an axial direction of the coaxial assignment and are provided in the form of tabs that point toward the ring-like discoidal area (24) of the centering means. The centering means is thereby overlapped by a tubular copper part, which is joined to the centering means and which serves as a shielding (10) inside the vacuum interrupter.

Abstract: An injection molding machine includes a plasticizing unit and a closing unit which has at least one column which passes through and is moveable relative to a supporting element. A jacket at least partially surrounds the column at formation of an annular space and bears directly against the supporting element, wherein the jacket has at least one connection piece for providing a communication between the annular space and a suction unit.

Abstract: The aim of the invention is to optimize, in vacuum interrupters, the connection area (12, 13, 14) between housing parts (2, 3, 4, 5), which are coaxially assigned to one another, with regard to the complexity of production for centering measures and with regard to the execution of the soldering process. To this end, a ring-like discoidal centering means (15) is used, which is made of a silver-coated copper and which comprises centering lugs (18) located on a tubular flange (17) that is arranged on the inner periphery of the centering means. Said centering lugs extend in an axial direction of the coaxial assignment and are provided in the form of tabs that point toward the ring-like discoidal area (24) of the centering means. The centering means is thereby overlapped by a tubular copper part, which is joined to the centering means and which serves as a shielding (10) inside the vacuum interrupter.

Abstract: A vacuum interrupter with a tubular insulator, to dielectrically optimize the fixing of a vapor shield which is provided at an encircling step of the ceramic insulator. A holding ring is assigned to the vapor shield and has a cylindrical region, which is supported on the step, and an inwardly projecting collar, one end of the vapor shield being flanged onto the collar.

Abstract: An injection molding machine includes a plasticizing unit and a closing unit which has at least one column which passes through and is moveable relative to a supporting element. A jacket at least partially surrounds the column at formation of an annular space and bears directly against the supporting element, wherein the jacket has at least one connection piece for providing a communication between the annular space and a suction unit.

Abstract: In order to simplify the soldering process in the production of a vacuum-tight soldered joint between a ceramic component and a copper component, a layer of silver is first applied galvanically to the copper component to form the soldering material together with the underlying surface layer of the copper component. During the heat treatment required for soldering metal components can also be soldered in the same manner to the copper component, e.g. the bellows or the screen of a vacuum switching tube.

Abstract: A vacuum interrupter is provided. The vacuum interrupter includes a housing part that surrounds contact members and a vapor shield associated with the insulator, the housing part and the vapor shield are designed as one piece. A transition from the housing part to the vapor shield is undulated, so that a linear contact with one end face of the insulator results.

Abstract: A vacuum tube including a getter apparatus is provided. The getter apparatus includes a sheet-like support with an applied getter layer which is used to maintain vacuum in the vacuum tube during operation. The support has the shape of a strip, and is positioned in a groove of a shield or a contact pin of the vacuum tube. The support is immobilized using impressions of the groove rim.

Abstract: A vacuum switch tube wherein at least one part which separates the interior of the tube from the environment is soldered to the housing of a vacuum switch tube so as to be vacuum-tight with a soft solder 6 which has a melting point which lies below 400.degree. C. The invention is suitable for vacuum switch tubes which do not have a pump stem, and particularly for protected tubes.