Abstract: The present invention relates to a longitudinal beam for a motor vehicle, having a body, of hollow cross section and extending in the longitudinal direction, with a front connection for a cross-member and a rear connection to a motor vehicle body, said longitudinal beam being characterized in that the longitudinal beam is produced from a multi-layer steel having a homogeneous wall thickness as a hot-formed and press-hardened component and has at least one reinforcement patch, wherein the multi-layer steel has a central layer and at least one outer layer made of a ferritic stainless steel alloy.

Abstract: A pillar for a motor vehicle bodywork is disclosed having a main element with an upper coupling section for attaching to a roof frame, and a secondary element composed of metallic alloy. The secondary element is connected in a planar fashion at least over certain sections of the main element, and the main element has a middle layer composed of a hardened steel alloy, and at least one outer layer which bounds the middle layer toward the outside.

Abstract: The present invention relates to a longitudinal beam for a motor vehicle, having a body, of hollow cross section and extending in the longitudinal direction, with a front connection for a cross-member and a rear connection to a motor vehicle body, said longitudinal beam being characterized in that the longitudinal beam is produced from a multi-layer steel having a homogeneous wall thickness as a hot-formed and press-hardened component and has at least one reinforcement patch, wherein the multi-layer steel has a central layer and at least one outer layer made of a ferritic stainless steel alloy.

Abstract: A pillar for a motor vehicle bodywork is disclosed having a main element with an upper coupling section for attaching to a roof frame, and a secondary element composed of metallic alloy. The secondary element is connected in a planar fashion at least over certain sections of the main element, and the main element has a middle layer composed of a hardened steel alloy, and at least one outer layer which bounds the middle layer toward the outside.

Abstract: Composite conductor comprising a metallic conductor and a ceramic conductor or non-conductor, at least one of them being elongate, the two being connected with each other in an electrically conductive manner. The ceramic conductor or non-conductor and the metallic conductor are hard-soldered to each other by a contact surface extending obliquely to the longitudinal direction of the at least one elongate conductor, and has one of the conductors tapers at its end and the other conductor has a matching tapering recess. The tapering end of the conductor is fitted into the tapering recess.

Abstract: There is described a shaped object adapted for being connected with a rim at a point located inside the rim well (7), having a contact surface (2) intended to rest on the rim well. It is provided according to the invention that the contact surface (2) intersects each of a set of mutually parallel first planes (3) along a curved curve (5), which is not merely an arc of a circle and whose distance from a second plane (6), that subdivides the contact surface (2) and that extends perpendicularly to the first planes (3) increases with a decreasing growth rate, at least in average, at least on one side of the second plane (6).

Abstract: Composite conductor comprising a metallic conductor and a ceramic conductor or non-conductor, at least one of them being elongate, the two being connected with each other in an electrically conductive manner. The ceramic conductor or non-conductor and the metallic conductor are hard-soldered to each other by a contact surface extending obliquely to the longitudinal direction of the at least one elongate conductor, and has one of the conductors tapers at its end and the other conductor has a matching tapering recess. The tapering end of the conductor is fitted into the tapering recess.

Abstract: A method for manufacturing a ceramic glow pin which is formed of more than two layers arranged especially coaxially to the axis of the glow pin and symmetrically. The layers of the layer structure are manufactured by co-extrusion.

Abstract: There is described a shaped object adapted for being connected with a rim at a point located inside the rim well (7), having a contact surface (2) intended to rest on the rim well. It is provided according to the invention that the contact surface (2) intersects each of a set of mutually parallel first planes (3) along a curved curve (5), which is not merely an arc of a circle and whose distance from a second plane (6), that subdivides the contact surface (2) and that extends perpendicularly to the first planes (3) increases with a decreasing growth rate, at least in average, at least on one side of the second plane (6).

Abstract: A method for manufacturing a ceramic glow pin which is formed of more than two layers arranged especially coaxially to the axis of the glow pin and symmetrically. The layers of the layer structure are manufactured by co-extrusion.

Abstract: A method for manufacturing a glow pin for a ceramic glow plug which is constructed of an inner cylinder and at least one outer layer that is coaxial to the inner cylinder and/or a base layer or cover layer on the front face. The at least one coaxial outer layer and/or the front-face layer is formed by thermal spraying.