SEALING DEVICE A FUEL INJECTION VALVE

摘要

The invention relates to a sealing device for sealing a fuel injection valve (1) for fuel injection systems of internal combustion engines against a cylinder head (2). The fuel injection valve (1) comprises a nozzle body (8), on which a sealing element (3) is arranged that has a sealing surface that is radially oriented outward. The inventive sealing device comprises a sealing sleeve (4), which can be slid onto the sealing element (3) and which has a collar-shaped expansion (10) with a sealing surface (12). Said sealing surface is oriented in an axial direction and tightly rests against a bearing surface (7) in the cylinder head (2).