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 create a fuel cell unit, comprising a cathode-anode-electrolyte unit and a contact plate which is in electrically conductive contact with the cathode-anode-electrolyte unit, which requires only small production resources and is thus suitable for large-scale production it is suggested that the fuel cell unit comprise a fluid guiding element which is connected to the contact plate in a fluid-tight manner, forms a boundary of a fluid chamber having fluid flowing through it during operation of the fuel cell unit and is designed as a shaped sheet metal part.
摘要:
Cylinder head gasket with a gasket plate which has several metal layers placed on top of one another, at least one combustion chamber aperture as well as at least one fluid aperture and is provided with a combustion gas sealing system around the combustion chamber aperture as well as with a fluid sealing system around the fluid aperture, wherein two external metal layers (outer layers) of the gasket plate enclose between them at least one inner metal layer (inner layer) of the gasket plate and at least one of the metal layers has at least one bead surrounding the fluid aperture; in order to be able to produce such a cylinder head gasket as simply as possible and at the same time minimize the risk of the sealing surfaces of engine block and cylinder head being impaired by the cylinder head gasket, such a cylinder head gasket is designed such that (a) the bead surrounding the fluid aperture is provided on an inner layer and the latter is such a spring-steel sheet metal layer that its bead is stressed predominantly in the elastic range when the gasket is fitted; (b) the bead of the inner layer is a semi-bead with an approximately Z-shaped cross section, and (c) the outer layers are designed over the entire main surfaces of the gasket plate as smooth and flat sheet-metal layers and form these main surfaces.
摘要:
The invention relates to a metallic cylinder head gasket for an internal combustion engine, having a carrier plate which is arranged between cover plates. The carrier plate and cover plates are provided with passages which are commensurate with the combustion chambers of the internal combustion engine. The cover plates are provided, around each passage, with a resilient bead. Adjacent to each bead, and also extending around each passage, is a bead deformation limiter. The deformation limiters are shaped to prevent the occurrence of high edge pressures.
摘要:
In order to provide a cell connector for the electrically conductive connection of a first cell terminal of a first electrochemical cell and a second cell terminal of a second electrochemical cell of an electrochemical device comprising a base body and a contact body, which is connected to the base body and is connected to one of the cell terminals in the assembled state of the cell connector, at which an electric potential is detectable in a particularly simple manner, it is proposed that the contact body comprises a voltage tap.
摘要:
The invention relates to a metallic cylinder head gasket for an internal combustion engine having a cylinder block with adjacent combustion chambers and a cylinder head connected to the said block by bolts, having at least one sheet metal layer of resilient metal, which is provided with a plurality of combustion chamber openings corresponding to the combustion chambers of the internal combustion engine, and also fluid and bolt passage openings, where, around each combustion chamber opening, at a distance from the latter, leaving a straight sheet metal section in the opening edge area, a bead is provided, whose spring travel is limited by a stopper extending concentrically with respect to the bead the stopper being profiled in terms of height and/or width in accordance with reductions in compression pressure to be expected in specific areas on account of reduced component stiffness of cylinder block and cylinder head in the clamped state of the cylinder head gasket, where, when profiling the stopper height and/or width, the increase in the compression pressure as a result of thermal expansions to be expected because of the operating temperature of the internal combustion engine is additionally taken into account in such a way that the profiling is designed substantially in accordance with a mid-range between an increase in compression pressure resulting from thermal expansions and a decrease in compression pressure resulting from component stiffnesses.
摘要:
Cylinder head gasket with a ring-shaped metallic sealing element extending around a through-opening of the gasket, wherein, for automatic adaptation to changes in the width of the sealing gap to be sealed by the cylinder head gasket, the sealing element is of such spherical shape in cross section at its sides facing the two main surfaces of the gasket as to result in convex surfaces of the sealing element that face the main surfaces of the gasket and each have a crest, and, in the unpressed state of the gasket, these crests, in cross section perpendicular to the longitudinal center axis of a metallic sealing strand forming the sealing element, are laterally offset from one another in the direction of a gasket plane defined by the gasket so that the spacing of planes running parallel to the gasket plane and tangentially to the convex surfaces of the sealing element varies when these convex surfaces tilt about the longitudinal center axis of the sealing strand.
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 provide a housing cover for fixing to a housing, in particular to a gear housing or a steering gear 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.