Abstract: The invention concerns a power electronic arrangement comprising an insulating substrate, a cooling element arranged beneath the insulating substrate and one or more power electronic components disposed on a respective metallization surface of the insulating substrate. Disposed on the surface of the insulating substrate is a metal layer portion which projects beyond the insulating substrate at all sides. The region of the metal layer portion, that projects beyond the insulating substrate, forms a metal flange which borders the insulating substrate. The cooling element, on its side towards the insulating substrate, beneath the insulating substrate, has one or more recesses, whereby a cavity delimited by the insulating substrate and wall surfaces of the one or more recesses is formed beneath the insulating substrate for receiving a liquid cooling agent. The metal flange is further connected to the cooling element.

Abstract: The invention concerns a power electronic arrangement comprising an insulating substrate, a cooling element arranged beneath the insulating substrate and one or more power electronic components disposed on a respective metallization surface of the insulating substrate. Disposed on the surface of the insulating substrate is a metal layer portion which projects beyond the insulating substrate at all sides. The region of the metal layer portion, that projects beyond the insulating substrate, forms a metal flange which borders the insulating substrate. The cooling element, on its side towards the insulating substrate, beneath the insulating substrate, has one or more recesses, whereby a cavity delimited by the insulating substrate and wall surfaces of the one or more recesses is formed beneath the insulating substrate for receiving a liquid cooling agent. The metal flange is further connected to the cooling element.

Abstract: A gas burner for cooking areas includes a lower part and an upper part. The upper part has gas repulsion ducts with gas outlet openings for gas flames. The upper part is rotatably mounted on the lower part by a compressed-air bearing configured to apply a compressed-air cushion to pneumatically lift the upper part off the lower part for allowing contactless turning of the upper part in relation to the lower part about an axis of rotation. The gas repulsion ducts are formed to drive the upper part in relation to the lower part about the axis of rotation by gas flowing through the gas repulsion ducts at positive pressure. Such a configuration makes it possible to evenly distribute the heat of the flames in the periphery of the burner and to minimize minimum gas burner output by using less flames.

Abstract: A gas burner for cooking areas includes a lower part and an upper part. The upper part has gas repulsion ducts with gas outlet openings for gas flames. The upper part is rotatably mounted on the lower part by a compressed-air bearing configured to apply a compressed-air cushion to pneumatically lift the upper part off the lower part for allowing contactless turning of the upper part in relation to the lower part about an axis of rotation. The gas repulsion ducts are formed to drive the upper part in relation to the lower part about the axis of rotation by gas flowing through the gas repulsion ducts at positive pressure. Such a configuration makes it possible to evenly distribute the heat of the flames in the periphery of the burner and to minimize minimum gas burner output by using less flames.

Abstract: A holding device for at least one cooking product carrier in a baking oven by means of which the cooking product carrier can be drawn out of the baking oven muffle and slid back into it, is to be improved with regard to its operating characteristics. For this purpose, holding device (8) has at least one parallelogram linkage (10, 11, 16, 17) with a base arm (11) which is in a fixed-position in relation to the baking oven muffle (1), pivot arms (16, 17) articulated at articulation points (12, 13, 14, 15) and a movable mounting arm (10) of a holding element (9) of the cooking product carrier (24) which can be moved with it.

Abstract: The invention relates to a vapor exhaust hood with a housing which features at least one intake opening equipped at a minimum with one filter, and features at least one outlet opening, and the inside surfaces of which are in part lined with a sound-deadening material, with a fan arranged in the housing. Arranged in the housing, at least opposite each inlet opening of the fan, is sound-absorbing material which from the opposite inlet opening is spaced at least the radius of the fan wheel. The sound-absorbing material has a surface which in size corresponds at least to a circular surface whose radius matches that of the fan wheel. Further measures for noise reduction consist in the arrangement of a vane in the area of the outlet opening, in the application of sound-deadening and/or sound-damping material as well as in the elastic mounting of fan and/or fan motor.

Abstract: A high-pressure metal vapor discharge lamp, for example and specifically a etal halide vapor discharge lamp, has a discharge vessel, in which electrodes are fitted from both ends, in form of an elongated ceramic hollow body, in which, in accordance with the invention, the ceramic is translucent, high-purity aluminum nitride (AIN). The end portions are closed off by closing electrodes in form of either solid pins or rods, from which electrode elements carried on shafts (13) extend, or a hollow tube (19) fitted into the end portion of the aluminum nitride discharge vessel and pinched and soldered shut. The solid or tubular closing elements can be inserted into a pre-sintered discharge vessel, preferably under inert atmospheric conditions, in a meticulously clean environment. For translucidness, the high-purity aluminum nitride should have less than 0.05% of metal cations, which may cause coloring or discoloration, less than 0.01% iron as two or three valent ions, and less than 0.

Abstract: To permit using a single firing step, sintered aluminum nitride ceramic bodies provided with firmly adhering electrically conductive films or resistive layers can be produced by sintering of the green ceramic bodies and the films or layers in common, if these films or layers additionally contain a mixture of aluminum nitride and rare earth metal oxide.