Sealing Device for a Fuel Injector, and Sealing Method
AssigneeSiemens Aktiengesellschaft
InventorsRoman Brauneis, Delan Jovovic
Life of this patent
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Abstract
In order to create a fluid-tight seal relative to a seal seat edge (422), especially a cylinder head (40), in a sealing device for a fuel injector (1), particularly for a nozzle retaining nut (10) of the fuel injector (1), the sealing device has a sealing area (12) that is provided with a concave zone (122) having a radially circumferential concave outer contour (124) which can be made to sealingly rest against the seal seat edge (422).
Claims20
A sealing device for a fuel injector for fluid-tight sealing with respect to a seal seat edge, comprising
- a sealing area, the sealing area having a concave zone with a radial, circumferential, concave outer contour which can be brought into sealing abutment against the seal seat edge.
A fuel injector having a sealing device for a fuel injector for fluid-tight sealing with respect to a seal seat edge, comprising a sealing area, the sealing area having a concave zone with a radial, circumferential, concave outer contour which can be brought into sealing abutment against the seal seat edge.
A motor vehicle, engine or cylinder head with a fuel injector comprising a sealing device for a fuel injector for fluid-tight sealing with respect to a seal seat edge, comprising a sealing area, the sealing area having a concave zone with a radial, circumferential, concave outer contour which can be brought into sealing abutment against the seal seat edge, wherein the concave zone of the nozzle retaining nut is seated on the rim of the seal seat edge of the cylinder bore.
A method for centering and permanently sealing in a high pressure-resistant, fluid-tight manner a first component of a fuel injector with respect to a sealing area of a second component, wherein
- the first component has a concave zone and the second component has a seal seat edge, the method comprising the steps of:
- for a pre-assembled state of the two components placing the concave zone against the seal seat edge for centering the two components with respect to one another, and
- when putting the two components into an assembled state, impressing at least one section of the concave zone in the seal seat edge by an at least elastic deformation of the material of the second component wherein the two components thus form a fluid-tight seal.
Dependencies are inferred from the claim text.