ElringKlinger AG

A sealing system, in particular for sealing multiple part exhaust-gas lines for an internal combustion engine, has at least a first flange part ( 9 ) and a second flange part ( 11 ) guiding a flow of heat ( 5 ). The flange parts ( 9, 11 ) delimit a receiving space ( 33 ) for at least one sealing element ( 31 ) between them and adjoin one another. Each flange part forms an outwardly projecting annular flange ( 13 ) facing away from the flow of heat ( 5 ), and extending transversely with respect to the heat flow. Chambering of the receiving space ( 33 ) is formed for the sealing element ( 31 ) by an annular groove ( 45 ) open at the end face ( 17 ) of at least one flange part ( 11 ) and recessed axially into said end face ( 17 ). At least one covering element ( 47 ) is arranged in the annular groove ( 45 ) and provides thermal shielding for the sealing element ( 31 ) at least on its side facing the end face ( 17 ) of the flange part ( 11 ).

Cylinder head gasket with a gasket plate comprising a plurality of sheet metal layers and at least one combustion chamber opening, an inner layer being arranged in the gasket plate directly between two functional layers having sealing beads arranged one over the other, which enclose the combustion chamber opening and have bead feet lying in the planes of the functional layers and bead crests with which sealing beads of the two functional layers all project over the functional layers in a first direction extending perpendicularly to the gasket plane, at least one ring zone of the inner layer being clamped between the bead feet of the one functional layer and at least one bead crest of the other functional layer when the gasket is pressed; to minimize arching of this ring zone, it is stiffened and/or those ring zone regions against which at least one bead crest of one functional layer lies when the gasket is pressed are supported by bead feet of the other functional layer.

In order to produce a carrier foil for printed circuit boards, which is particularly suitable for high component densities, it is proposed that said carrier foil be produced from a polymer material comprising a thermoplastically processable, substantially fully fluorinated plastics material.

Separating device for separating liquid or solid particles from an aerosol stream, comprising an impactor with a perforated plate against which the stream flows, and an impact plate arranged at a short distance behind the perforated plate, the side of the impact plate against which the stream flows having a separating layer with an open structure; in order that the separating device will have a consistently good separating effect during operation, the perforated plate is provided on its rear side with a plurality of spacer elements bearing against the region of the separating layer against which the stream flows, the height of the spacer elements, the support surfaces formed by the spacer elements for the separating layer, and the number and arrangement of the spacer elements being selected in dependence upon the material of the separating layer such that it is ensured that the holes of the perforated plate remain free from material of the separating layer also during operation.

In order to improve an oil separator unit, in particular an oil separator unit provided for vehicle drives, comprising an oil separator housing with a drainage system and a check valve unit which is formed from a valve seat and a valve element which comprises a valve member of an umbrella-like design and consisting of an elastomer, in such a manner that it can be produced as inexpensively as possible, on the one hand, and, on the other hand, the wear on the valve element is, however, considerably reduced or occurs to as low a degree as possible, it is suggested that the valve member of the valve element be held on an insert part and that the insert part be insertable, for its part, into an insert part receptacle in a valve housing.

In order to make an elastomeric sealing element available which is also suitable, in particular, for sealing tasks, with which the highest thermal and chemical resistance is partially required, and at the same time to save on costs and resources it is suggested that the elastomeric sealing element comprise a first and a second sealing section, wherein the first sealing section is produced with the use of a first elastomeric material containing a first cross-linking system, wherein the second sealing section is produced with the use of a second elastomeric material containing a second cross-linking system, wherein the first and the second sealing sections border directly on one another in a seam area and their elastomeric materials are materially joined to one another, and wherein at least one of the two cross-linking systems comprises, in addition, a cross-linking agent for the respectively other elastomeric material.

The invention relates to a structural element for thermally shielding engines or engine components, in particular a heat shield for combustion engines, the structural element having a planar extension and comprising a first side that faces a hot element of the engine, and a second side that faces away from the hot element of the engine, characterized in that the structural element comprises a thermoelectric generator, which can be used to generate electric energy from a temperature difference resulting between the first side and the second side of the structural element during operation of the engine.

Cylinder head gasket whose gasket plate comprises a single sheet metal layer, combustion chamber openings, and for each combustion chamber opening a ring-shaped combustion chamber sealing element, which is a sheet metal ring that is arranged on the sheet metal layer and is joined to the latter by welding; to avoid the risk of damage to a combustion chamber sealing element as a result of sliding movements occurring between a cylinder head sealing surface and the cylinder head gasket while the engine is in operation, all sheet metal rings are arranged on that side of the sheet metal layer which is to face an engine block.

In order to make available a crosslinking agent for ethylene acrylate (AEM) and polyacrylate (ACM) elastomers, which is equivalent to the crosslinking agents containing guanidine that have been used until now, but which does without the teratogenically acting guanidines which are toxologically hazardous, it is proposed that the crosslinking agent for diaminically crosslinkable AEM and ACM elastomers comprise a diamine crosslinker, an accelerator selected from 1,8-diazabicyclo-5,4,0-undec-7-ene (DBU), derivatives and salts thereof, and a moderator of the pyrrolidone type.

In order to provide a radial seal for sealing between a first component arranged radially inside the radial seal and a second component arranged radially outside the seal, which is suitable for sealing between two components, of which at least one has a non-rotationally symmetrical contact face for the radial seal, it is proposed that the radial seal comprises a non-rotationally symmetrical sealing body with an inner sealing face for application to the first component and an outer sealing face for application to the second component, a first reinforcement element, which supports the inner sealing face against a pressing force acting radially outwardly and a second reinforcement element, which supports the outer sealing face against a pressing force acting radially inwardly.