Abstract: A hydrodynamic coupling device, especially a hydrodynamic torque converter, includes a housing which is rotatable about an axis of rotation, a turbine wheel mounted for rotation with respect to said housing, and a bridging clutch for transmitting torque between the housing and the turbine. The bridging clutch includes a first friction element which is essentially fixed against rotation with respect to the housing, and at least one second friction element which is essentially fixed against rotation with respect to the turbine, the friction elements having respective friction surfaces which can be brought into contact with each other. A first channel, provided in one of the friction surfaces, has first channel sections with radially closed inner ends and second channel sections with radially closed outer ends.

Abstract: An electro-acoustic transducer (1) is proposed for a component operating with surface waves, in particular for a surface wave filter, in which, to suppress interfering excitation ensuing in the gap region, a variation of the gaps (4) is implemented with regard to at least one feature selected from transversal arrangement, size and shape. Due to the slight dimension change (&Dgr;D) in comparison to the finger length, the desired primary excitation in the transducer remains approximately unchanged, however the interfering excitation is displaced or divided, and therewith made ineffectual.

Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.

Abstract: An air-guiding appliance (10) for the directionally defined introduction of air supplied on the rear side of the appliance into a space (22), in particular interior of a vehicle, having a housing (26), an air-guiding guiding device (12) which has recesses on the front side and by means of which the direction of the air flowing out into the space (22) can be defined, means (16) for setting the direction of the air-guiding device (12) and, if appropriate, means for setting the quantity of air flowing into the space, an air-guiding body (30) or an air-guiding plate which has through-going recesses (32) which correspond with the front-side recesses and the air-charged rear side, the air-guiding guiding body (30) or the air-guiding plate consisting of elastically deformable material, there being means (40.1, 40.

Abstract: An air-guiding appliance (10) for the directionally defined introduction (R) of air (L) supplied on the rear side (20) of the appliance into a space (22), in particular interior of a vehicle, having a housing (26), at least one duct (24) in which the air (L) is supplied to the housing (26), an air-guiding device (12) which has recesses (14) on the front side and by means of which the direction (R) of the air flowing out into the space (22) can be defined, means for setting the direction (R) of the air-guiding device (12) and, if appropriate, means for setting the quantity of the air flowing into the space (22), is distinguished by the fact that a jet pipe (30) which can be displaced in and counter to the direction of the supplied air (L) is arranged in the housing (26) or in the duct (24) and its air outlet opening (28) is smaller in size than the cross-sectional surface of the air-guiding device (12), in which case, in the retracted position of the jet pipe (30), the air (L) emerges from the air-guiding devi

Abstract: A hydraulic clutch has an impeller wheel, a turbine wheel with a turbine wheel shell, and a torsional vibration damper. The turbine wheel is drivable by the impeller wheel. The turbine wheel shell is mounted in an axial and radial sliding bearing so as to be rotatable with respect to a turbine wheel hub. The torsional vibration damper is arranged on the turbine wheel hub so as to be fixed with respect to rotation relative to it. The turbine wheel hub is drivable by the turbine wheel via the turbine wheel shell and the torsional vibration damper. The turbine wheel shell acts on the torsional vibration damper via a connection element. The axial sliding bearing is spatially offset with respect to the radial sliding bearing.

Abstract: The present invention relates to a method and a system for operating a semiconductor factory. The factory comprises equipment (8) for processing semiconductor wafers, and an automated material handling system (12). The invention comprises clamping a wafer carrier (16) while a wafer is processed by a particular tool (10), continuing clamping the wafer carrier (16) after processing, and unclamping the wafer carrier (16) when the automated material handling system (12) is ready for removing the wafer carrier (16) from the tool (10).

Abstract: For improved conformance of a filter operating with acoustic waves, a transducer structure is proposed in which the separations between respectively two adjacent electrode fingers of an inter-digital transducer (IDTv) vary over the length of the transducer. The variation thereby preferably follows a continuous distribution function. Reactance filters that are provided with such filters in the serial branch show an improved electrical conformance in the transmission range.

Abstract: The invention relates to a retractor (10) with a carrier ring (20) and L-shaped valves (30), which can be attached with an arm (32) which runs parallel to the carrier ring plane to the carrier ring (20), whereby its free end points outward, and whose other arm (34) is oriented perpendicularly with a respect to the carrier ring plane and presents, in cross section, a convex curvature toward the external margin of the carrier ring (20), where the arm of (32) [sic; arm (32)] of the valves (30), which is attached to the carrier ring (20), is guided in radically oriented guides (22) on the carrier ring (20).

Abstract: A hydrodynamic clutch device, particularly a hydrodynamic torque converter or fluid coupling, comprises a housing arrangement, a turbine wheel which is arranged in the housing arrangement so as to be rotatable with respect to the housing arrangement about an axis of rotation, a lockup clutch arrangement by means of which a torque-transmitting connection can be selectively produced between the housing arrangement and the turbine wheel, wherein the lockup clutch arrangement comprises a clutch element which is connected by a connection arrangement to the housing arrangement so as to be substantially fixed with respect to rotation but axially displaceable relative to it, wherein the connection arrangement comprises at least one elastically deformable connection element which is fixedly connected with the housing arrangement on the one hand and with the clutch element on the other hand.

Abstract: OPC data is transmitted via data networks, in particular the Internet. A bi-directional data connection via the Internet in both directions, is enabled even across firewalls and starting from an OPC client, which is not visible as a server on the Internet. To achieve this, a first connection request for establishing a first transmission channel is sent from a first data processing device of an OPC client, via a data connection, to an OPC server of an automation system. The OPC server responds to the request using a second transmission channel. The data connection is thus kept open permanently, allowing data to be sent and received bi-permanently, allowing data to be sent and received bi-directionally, said operations being temporally independent of each other, between the OPC client and the OPC server by at least one data network, in particular, the Internet.

Abstract: A hydrodynamic clutch arrangement, particularly a torque converter or fluid coupling, includes a housing arrangement, a turbine wheel provided in the housing arrangement, and a lockup clutch arrangement by which a torque transmitting connection can be produced selectively between the turbine wheel and the housing arrangement. The lockup clutch arrangement includes at least two friction members which are rotatable with one of the housing arrangement and turbine wheel, and at least one counter-friction member which is interposed between the two friction members and is rotatable with the other of the housing arrangement and turbine wheel. A first friction facing on at least one of the friction members at its first side faces the at least one counter-friction member. This at least one of the friction members can be brought into frictional interaction, via a second friction facing, with another counter-friction member on its second side located opposite to the first side.

Abstract: A hydrodynamic coupling device, especially a hydrodynamic torque converter, includes a housing which is rotatable about an axis of rotation, a turbine wheel mounted for rotation with respect to said housing, and a bridging clutch for transmitting torque between the housing and the turbine. The bridging clutch includes a first friction element which is essentially fixed against rotation with respect to the housing, and at least one second friction element which is essentially fixed against rotation with respect to the turbine, the friction elements having respective friction surfaces which can be brought into contact with each other. A first channel, provided in one of the friction surfaces, has first channel sections with radially closed inner ends and second channel sections with radially closed outer ends.

Abstract: The invention relates to a system and a method for transmitting data via data networks, especially via the Internet. The aim of the invention is to create a bi-directional data connection even behind firewalls, via Internet in both directions, including from a client (1) not visible as a server in the Internet. To this end, the invention provides a method or a system in which a first connection request for establishing a first transmission channel (6a, 7a, 8a) is sent to a server (4) of an automation system (5) from a first data processing device (1) of a client (1) via a data connection (6, 7, 8). This request is answered by the server (4) via a second transmission channel (6b, 7b, 8b). The data connection (6, 7, 8) is kept permanently open, hereby allowing mutually time-independent bi-directional sending and receiving of data between the client (1) and the server (4), via at least one data network, especially via the Internet.

Abstract: A hydrodynamic clutch arrangement, particularly a torque converter or fluid coupling, includes a housing arrangement, a turbine wheel provided in the housing arrangement, a lockup clutch arrangement by which a torque transmitting connection can be produced selectively between the turbine wheel and the housing arrangement. The lockup clutch arrangement includes at least two friction members which are rotatable with a one of the housing arrangement and turbine wheel, at least one counter-friction member which is interposed between two friction members and is rotatable with the other of the housing arrangement and turbine wheel and can be brought into contact with friction surface regions of the friction members in friction surface regions of the counter-friction member. The counter-friction member has a substantially ring-shaped counter-friction member body having an outer radius (Ra) in a ratio of 1.1:1 to 1.

Abstract: In a hydrodynamic clutch with a lockup clutch, a hydraulic fluid is in operative connection with a piston space outside of a driven shaft constructed as a hollow shaft by means of a plurality of fluid channels. The piston space adjoins an actuation piston by means of which the lockup clutch can be actuated. The fluid channels extend substantially axially in a partial portion. In the partial portion, the fluid channels are surrounded on the radial inside by the driven shaft and are surrounded on the radial outer side and in circumferential direction by a hub part.

Abstract: A hydrodynamic clutch device for a hydrodynamic torque converter includes a turbine wheel for rotation about an axis of rotation. The turbine wheel is connected by a lockup clutch arrangement for transmitting torque to a housing arrangement. The turbine wheel includes a turbine wheel shell for housing turbine wheel blades. The turbine wheel shell is operably connected by a torsional vibration damper arrangement for transmitting torque. The torsional vibration damper arrangement includes a first transmission element coupled with the lockup clutch arrangement and the turbine wheel shell and includes a second transmission element coupled with the first transmission element for transmitting torque by means of a damper element arrangement; and wherein the first transmission element is supported at the housing arrangement in a first direction by a bearing arrangement.

Abstract: A temperature-controlled fuel valve, especially for a fuel-operated heating burner of a vehicle heating system has at least one valve member (40) that is adjustable as a function of a temperature in the area of a heating burner (30).

Abstract: An apparatus for processing physiological signals, which includes a signal pick-up unit for picking up physiological measurement signals, in particular for picking up electrical signals of a heart, and first detection means which are connected to the signal pick-up unit and include signal processing means such as a filter and a first threshold value store and a comparison unit which is connected thereto and which is adapted to output a first marker signal if the amplitude of the measurement signal exceeds a threshold value stored in the first threshold value store, second detection means which are connected to the signal pick-up unit and include a second threshold value store and a second comparison unit which is connected thereto and which is adapted to output a second marker signal if the amplitude of the measurement signal exceeds a threshold value stored in the second threshold value store, and an evaluation unit which is connected to the first and second detection means for taking over a respective serie

Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.