摘要:
In order to produce a gasket that is adapted to be arranged between two components requiring sealing of which at least one contains a first metallic material which is less noble than aluminium and the gasket comprises at least one gasket layer including a plate consisting of a second metallic material which is nobler than the first metallic material, such that contact corrosion on the components requiring sealing is reduced or completely prevented, it is proposed that the gasket layer should comprise a sealing element which is arranged at an outer boundary region of the plate, should consist of an elastomer material and, in the installed state of the gasket, should gasket the gap between the gasket layer and the component which contains the first metallic material in a substantially fluid-tight manner.
摘要:
In order to produce a gasket that is adapted to be arranged between two components requiring sealing of which at least one contains a first metallic material which is less noble than aluminium and said gasket comprises at least one gasket layer including a plate consisting of a second metallic material which is nobler than the first metallic material, such that contact corrosion on the components requiring sealing is reduced or completely prevented, it is proposed that the gasket layer should comprise a sealing element which is arranged at an outer boundary region of the plate, should consist of an elastomer material and, in the installed state of the gasket, should gasket the gap between the gasket layer and the component which contains the first metallic material in a substantially fluid-tight manner.
摘要:
Flat gasket, in particular, cylinder head gasket with a gasket plate which has at least one aperture and at least one sheet-metal layer which is provided with a bead surrounding the aperture, as well as with a stopper device preventing any excessive bead deformation; so that the sheet-metal layer does not tear even during dynamic pressure loads on the bead in the bead area which accompany a considerable flattening of the bead, the recess formed by the bead is filled over at least a considerable part of its depth with an elastomeric material which has appreciable flow properties under pressure even at ambient temperature (21° C.), i.e. is plastically deformable to a not inconsiderable extent.
摘要:
In order to produce a connecting device for the electrically conductive connection of a plurality of cell terminals of electro-chemical cells of an electro-chemical device which enables the cell connector to be mounted on the electro-chemical cells in a simple and rapid manner wherein the device comprises two or more cell connectors for respectively connecting two cell terminals of different electro-chemical cells to one another in electrically conductive manner, it is proposed that, in an assembly state of the connecting device, at least two cell connectors be integrally connected together after separating out the cell connectors from a starting material.
摘要:
To provide a housing cover for fixing to a housing which is simple to produce and to fit, it is proposed that the housing cover is configured as a sheet metal formed part, that the housing cover is provided with a plurality of fastening means through-apertures and with a sealing bead, which comprises an elastomeric material, and that when the housing cover is in a rest state prior to tightening the housing cover against the housing by means of the fastening means, at least one contact region portion of the inside of the housing cover which faces the housing when the housing cover is in the fitted state, said contact region portion being located between two fastening means through-apertures and carrying a portion of the sealing bead, projects, at least in a section thereof, over the inside edges of the two adjacent fastening means through-apertures.
摘要:
In order to provide a fuel cell unit, comprising a housing which limits at least one gas chamber and has a gas opening in a first housing wall and a gas opening in a second housing wall located opposite the first housing wall, the housing of which has an adequate deformation stability in relation to the sealing surface pressure required for a flat seal even at high temperatures, it is suggested that the fuel cell unit comprise at least one supporting element which is arranged between the first housing wall and the second housing wall and keeps the two housing walls at a distance from one another.
摘要:
In order to produce a seal arrangement for a fuel cell stack which comprises a plurality of fuel cell units that succeed one another in a stack direction wherein each of the fuel cell units comprises a housing incorporating at least one housing part consisting of a metallic material such that it exhibits an adequate electrically insulating effect and adequate mechanical rigidity even at a high operating temperature of the fuel cell stack, it is proposed that the seal arrangement comprises at least one housing part of a first fuel cell unit consisting of a metallic material which is provided with a coating of a ceramic material, wherein the housing part of the first fuel cell unit is brazed to a housing part of a second fuel cell unit by means of a metallic braze at least one position that is provided with the ceramic coating.
摘要:
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.
摘要:
Cylinder head gasket with a ring-shaped combustion chamber sealing element comprising a metallic sealing strand and enclosing a combustion chamber through-opening, the combustion chamber sealing element being shaped and held in the cylinder head gasket so that when the gasket is clamped between engine component sealing surfaces, and the engine component sealing surfaces become displaced parallel to the gasket plane and relative to one another during operation of the engine, sealing element sections are tiltable about the longitudinal center axis of the sealing strand; to minimize frictional wear on the engine component sealing surfaces during operation of the engine, the gasket is shaped so that for pressing the combustion chamber sealing element against the engine component sealing surfaces, the combustion chamber sealing element is uncovered at the two main surfaces of the cylinder head gasket and, in cross section perpendicular to the longitudinal center axis of the sealing strand, is of such spherical shape there as to result, at the main surfaces of the cylinder head gasket, in surfaces of the combustion chamber sealing element, which are of convex cross section, and the radius of curvature of which is greater than half the thickness of the combustion chamber sealing element measured perpendicularly to the gasket plane so as to also minimize the danger of indentations occurring in the engine component sealing surfaces.
摘要:
In order to achieve good sealing in both a cold and a warm engine by means which are as simple as possible, an at least substantially metallic cylinder head gasket comprises a gasket plate with only one layer of sheet steel extending over the entire gasket plate, around each combustion chamber opening of the gasket plate a combustion chamber sealing element forming on at least one side of the gasket an elevation with a gasket sealing surface surrounding the combustion chamber opening in a closed manner for being pressed against an engine component sealing surface, the height profile of the gasket sealing surface corresponding prior to installation of the gasket to the topography of the sealing gap to be sealed off by the gasket when the gasket is installed, and the elevation having a metallic main body whose material is selected and whose cross section is designed such that the main body will not be deformable in its height under the maximum load occurring when the cylinder head gasket is installed and the engine is operating, and at least one sealing bead in the gasket plate, which surrounds at least one fluid opening of the gasket in a closed manner and is elastically deformable in its height.