Flat gasket and method of producing the same
OwnerFriedhelm Stecherinventor
Life of this patent
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Abstract
The invention relates to a flat gasket, on the main sealing faces of which are arranged one or several narrow flat sealing ridges, in the region of which an increased surface pressure and deformability are generated, whereby improved micro-sealing is attained. The invention further concerns a method for producing stamping moulds, in particular for stamping said flat gaskets according to the invention.
Claims26
A flat gasket comprising at least one through-opening, which is sealed by a main sealing face that has a sealing and bearing function and that absorbs preliminary tension, wherein, on said main sealing face, at least one sealing ridge is arranged, said at least one sealing ridge extending around at least one of a section and entire circumference of said through opening, wherein a width of each sealing ridge is smaller by an order of magnitude of a power of ten than a width of said main sealing face, and wherein a height of each sealing ridge is smaller by an order of magnitude of a power of ten than a width of each sealing ridge.
A method for producing a flat gasket having main sealing face and at least one through-opening in a stamping mold having an essentially uniform depth relative to a height of the surrounding stamped surface, wherein depressions are produced by at least one of a sphere and a small wheel being guided along required x-y coordinates under an essentially constant pressure, and wherein the step of producing said depressions includes the step of forming at least one sealing ridge arranged on said gasket around at least one of a section and entire circumference of said at least one through-opening in a manner causing each sealing ridge to have a width which is size smaller by an order of magnitude of a power of ten than a width of said main sealing face, and in a manner causing each sealing ridge to have a height which is smaller by an order of magnitude of a power of ten than the width thereof.
Dependencies are inferred from the claim text.