High pressure reservoir for fuel injection of internal combustion engines with a high-pressure fuel pump

The invention relates to a component to be loaded with internal pressure, which in its interior has various bores that intersect one another. In particular, such components are used in the field of so-called common rails. Since in fuel injection systems these components are not only under very high internal pressure but the internal pressure is moreover subject to periodically severe fluctuations, correspondingly stringent demands in terms of strength must be made. By geometrically optimizing the intersection region of the bore of the high-pressure fuel reservoir and the bore for the connection, the result in cross section is an elliptical design. By embodying the bore intersection as an ellipse, the stresses in these local regions can be reduced, and as a consequence the permissible internal pressure can intrinsically be increased.