Patent ID: 11047354

Abstract:
The decoupling element is for a fuel injection device, in which a low-noise configuration is implemented, and includes at least one fuel injector and a receiving borehole in a cylinder head for the fuel injector, and the decoupling element is introduced between a valve housing of the fuel injector and a wall of the receiving borehole. The decoupling element has a bowl- or cup-shaped configuration, and includes a radially outer contact area and a radially inner contact area with which the decoupling element is radially inwardly and radially outwardly placeable against the fuel injector and a shoulder of the receiving borehole. The radially inner contact area of the decoupling element has a spherically convex contact surface whose curvature has a largely constant spherical radius. The fuel injection device is particularly suited for the direct injection of fuel into a combustion chamber of a mixture-compressing spark ignition internal combustion engine.