High-pressure connector for a fuel delivery system

An apparatus for a fuel delivery system for a motor vehicle, the apparatus comprising:

• a housing including a wall with a connector opening;
• and
• a high-pressure connector with a central longitudinal axis, the connector for fixing to the housing by way of a welding process,
• the high-pressure connector including a wall circumferentially bordering a recess extending along the longitudinal central axis;
• the high-pressure connector having a housing connector region, an intermediate region, and a transition region between the housing connector region and the intermediate region;
• a radial indentation formed at the inner side in the wall in the housing connector region adjacent to the transition region;
• and
• an axial indentation formed at the outer side in the wall in the transition region adjacent to the intermediate region;
• wherein, in cross-sectional planes perpendicular to the longitudinal central axis, an outer contour diameter of the high-pressure connector is larger in the housing connector region than in the intermediate region and, in cross-sectional planes perpendicular to the longitudinal central axis, an inner diameter is larger in the housing connector region than in the intermediate region;
• wherein the wall of the high-pressure connector delimits, at its outer side facing toward the housing, a recess running along a circumferential direction, in a circumferentially closed fashion, around the recess;
• and
• the wall of the housing includes a protruding region suitable for making contact with the high-pressure connector when said protruding region partially or fully enters the recess.

A method for manufacturing an apparatus for a fuel delivery system, the apparatus comprising:

• a housing including a wall with a connector opening;
• and
• a high-pressure connector for fixing to the housing by way of a welding process, the high-pressure connector including a wall circumferentially bordering a recess extending along a longitudinal central axis of the high-pressure connector;
• the high-pressure connector including a housing connector region, an intermediate region, and a transition region formed between the housing connector region and the intermediate region;
• wherein, in cross-sectional planes perpendicular to the longitudinal central axis, an outer diameter of the high-pressure connector is larger in the housing connector region than in the intermediate region and, in cross-sectional planes perpendicular to the longitudinal central axis, an inner diameter is larger in the housing connector region than in the intermediate region;
• wherein the wall of the housing delimits, at its outer side, a recess running along a circumferential direction, in a circumferentially closed fashion, around the connector opening;
• and
• the housing connector region includes a protruding region suitable for making contact with the housing when said protruding region partially or fully enters the recess;
• a radial indentation formed at the inner side in the wall in the housing connector region adjacent to the transition region;
• and
• an axial indentation formed at the outer side in the wall in the transition region adjacent to the intermediate region;
• the method comprising:
• arranging the housing and the high-pressure connector such that the protruding region at least partially enters the recess running along the circumferential direction and said protruding region makes contact with the wall in which the recess extends along the circumferential direction;
• cohesively connecting the protruding region and the wall by way of a welding process, wherein a fixed state is produced between the high-pressure connector and the housing.