Abstract: A device for determining at least one parameter of a fluid medium, in particular an intake air mass of an internal combustion engine. The device comprises a sensor chip for measuring the parameter and a control and evaluation electronics having a circuit carrier. The sensor chip is situated on a chip carrier capable of being introduced into the fluid medium. The chip carrier comprises a projection of the circuit carrier developed in one piece with circuit carrier, the sensor chip being fixed in place on the projection.

Abstract: A compression generator uses a plurality of jackbolts threadedly engaged at a spaced apart relation about a bolt circle in a main core element. The main core element is releasable interlocked by threads, bayonet connection or other form of fasting system with the mounting element forming a fixed part of the mechanical connection. The jackbolts torqued to generate a pushing force in an axial direction for compressing a moveable part of the mechanical connection against a compression seat for forming a mechanical connection between juxtaposition fixed and moveable parts.

Abstract: A composite material consisting of aluminium oxide as a ceramic matrix and zirconium oxide dispersed therein. A method for the production thereof, components containing the composite and methods of using the same are also provided.

Abstract: A composite material consisting of aluminium oxide as a ceramic matrix and zirconium oxide dispersed therein. The invention also relates to a method for the production thereof and components containing same.

Abstract: A method for operating a hybrid vehicle in the event of a fault in an energy system, the hybrid vehicle being driven by at least two power plants, together or separately, and at least one electric power plant electrically charging a high voltage energy system which supplies a low voltage energy system with electrical energy, a high voltage being converted into a low voltage for supplying at least one control unit of the hybrid vehicle, and the hybrid vehicle being disconnected from the electric power plant when a fault is detected in the high voltage energy system. To maintain the energy supply to the control units via the low voltage energy system even in the event of a fault in the high voltage energy system, the electric power plant is placed in a state for generating a voltage which is uncritical for the safety of the user after the high voltage energy system is disconnected, the safety-uncritical voltage being converted into the low voltage for supplying the at least one control unit.

Abstract: A sintered molded body consisting of a material that contains aluminum oxide with chromium doping, zirconium oxide with Y-stabilization and strontium aluminates with variable Cr-doping, which is particularly suitable for medial application.

Abstract: A piston has an upper crown portion with an upper combustion wall against which combustion forces act and a lower crown portion with a pair of pin bosses spaced for receipt of a small end of a connecting rod therebetween. The upper crown portion and the lower crown portion form an outer oil gallery and a central oil gallery in fluid communication with one another. The central oil gallery is formed in part by an annular flange extending radially inwardly from the outer oil gallery and upwardly toward the upper combustion wall to a free edge spaced from the upper combustion wall. The free edge forms an opening about a central axis of the piston and has a non-planar uppermost surface with depressions aligned diametrically opposite one another across the opening to improve the oil flow throughout the central oil gallery.

Abstract: An intervertebral disc endoprosthesis for implantation in the spinal column, with an upper end plate and a lower end plate for securing respectively to the bones of the vertebral body, and with a slide bearing which is arranged between the end plates and is composed of slide bodies that are designed to slide on each other. both end plates are made of plastic and the slide bodies are made of ceramic, the slide bodies are encapsulated by the plastic of the end plates and the surface areas of the slide bodies encapsulated by the plastic of the end plates have surface area enlargements by comparison with flat surfaces. To ensure that the slide bodies are connected fixedly to the end plates in a manner secure against twisting, it is proposed that the surface area enlargements are elevations or depressions on the slide bodies.

Abstract: A piston for an internal combustion engine has an upper crown portion with a pair of pin bosses depending therefrom, wherein the pin bosses have pin bores axially aligned along a central pin bore axis. A pair of laterally spaced skirt portions are fixedly attached to the pin bosses and depend to a lowermost free edge. At least one of the skirt portions has a recess extending upwardly from the lowermost free edge beyond the central axis of the pin bores.

Abstract: A compression generator uses a plurality of jackbolts threadedly engaged at a spaced apart relation about a bolt circle in a main core element. The main core element is releasable interlocked by threads, bayonet connection or other form of fasting system with the mounting element forming a fixed part of the mechanical connection. The jackbolts torqued to generate a pushing force in an axial direction for compressing a moveable part of the mechanical connection against a compression seat for forming a mechanical connection between juxtaposition fixed and moveable parts.

Abstract: A piston has an upper crown portion with an upper combustion wall against which combustion forces act and a lower crown portion with a pair of pin bosses spaced for receipt of a small end of a connecting rod therebetween. The upper crown portion and the lower crown portion form an outer oil gallery and a central oil gallery in fluid communication with one another. The central oil gallery is formed in part by an annular flange extending radially inwardly from the outer oil gallery and upwardly toward the upper combustion wall to a free edge spaced from the upper combustion wall. The free edge forms an opening about a central axis of the piston and has a non-planar uppermost surface with depressions aligned diametrically opposite one another across the opening to improve the oil flow throughout the central oil gallery.

Abstract: The invention relates to a connecting method or a connecting arrangement for clamping at least one first and one second component (1, 2) to be clamped with each other, in particular with a connection by force on all sides. The connecting arrangement has at least one first and one second component (1, 2) to be connected with a connection by force on all sides, a through opening (20) of the components, a bolt (3) extending from the first component (1) through the through opening (20), a clamping nut (4) which is screwed on the bolt (3) for clamping the components (1, 2), and a cone pair (8) comprising an inner cone (60) with a split (8) and an outer cone (50). One part of this cone pair is formed as a conical clamping element (5), which is arranged and axially moveable for radial clamping on the bolt between the components and the clamping nut.

Abstract: A compression generator uses a plurality of jackbolts threadedly engaged at a spaced apart relation about a bolt circle in a main core element. The main core element is releasable interlocked by threads, bayonet connection or other form of fasting system with the mounting element forming a fixed part of the mechanical connection. The jackbolts torqued to generate a pushing force in an axial direction for compressing a moveable part of the mechanical connection against a compression seat for forming a mechanical connection between juxtaposition fixed and moveable parts.

Abstract: A device for determining at least one parameter of a fluid medium, in particular an intake air mass of an internal combustion engine. The device comprises a sensor chip for measuring the parameter and a control and evaluation electronics having a circuit carrier. The sensor chip is situated on a chip carrier capable of being introduced into the fluid medium.

Abstract: A clamping device with overload protection and a process to connect both elements, which are to be connected, whereby the clamping device is fitted with an element to be connected first, an element to be connected second, which is connected to the first element, and a bracing bolt to connect.

Abstract: Hardness, ageing resistance, wetting behavior in relating to water and high thermal conductivity are known characteristics of sintered molded bodies consisting of aluminum oxide; high strength and a high resistance to cracking, i.e., damage tolerance are known characteristics of sintered molded bodies consisting of zirconium oxide. These properties are combined in a material having a large fraction of aluminum oxide, zirconium oxide and optionally strontium aluminate.

Abstract: A sintered molded body consisting of a material that contains aluminum oxide with chromium doping, zirconium oxide with Y-stabilization and strontium aluminates with variable Cr-doping, which is particularly suitable for medical applications.

Abstract: A connecting rod for a piston assembly includes first and second guidance members for guiding a piston assembly within a cylinder during piston stroke along a first axis. The guidance members are supported by first and second support ribs extending from a shaft of the connecting rod and include first and second sliding surfaces for contacting side walls of the cylinder. The connecting rod includes an attachment boss disposed at a first end of the shaft and defines a second axis perpendicular to the first axis. The first and second support ribs extend radially outwardly from the attachment boss and are spaced radially about the second axis by approximately 180 degrees.

Abstract: The present invention relates to processes for application of a metal layer on a substrate via deposition of a metal from a metal salt solution by a chemical and/or electroplating method, a significant factor in these processes being that carbon nanotubes are present in the substrate surface. The present invention moreover relates to the use of carbon nanotubes for application of a metal layer on a substrate.

Abstract: The invention relates to a method for producing structured, electrically-conductive surfaces (3, 11) on an electrically nonconductive support (1), in which the structured and/or full-area electrically-conductive surfaces (3) of a first plane are applied onto the support (1) in a first step, an insulating layer (9) is applied in a second step at the positions where structured and/or full-area electrically-conductive surfaces (11) of a second plane cross the structured and/or full-area electrically-conductive surfaces (3) of the first plane and no electrical contact is intended to take place between the structured and/or full-area electrically-conductive surfaces of the first plane (3) and of the second plane (11), in a third step the structured and/or full-area electrically-conductive surfaces (11) of the second plane are applied according to the first step, and the second and third steps are optionally repeated.