Continental Automotive Gmbh

Cpt Group Gmbh

Eyk Heinemann

Andreas Ellenberg

Florian Reisinger

The invention relates to a high-pressure connection device () for a high-pressure fuel pump (), having the following: &#x2014;an outlet device () for discharging fuel () from the high-pressure fuel pump (); &#x2014;a connection device () for connecting the outlet device () to elements arranged downstream of the outlet device; &#x2014;a welding seam () for connecting the outlet device () and the connection device (); and &#x2014;a pretensioning device () for exerting a pretension force (F) onto the welding seam () in the direction of the outlet device (). The invention further relates to a high-pressure fuel pump () which has such a high-pressure connection device () and to a method for producing such a high-pressure connection device ().

High-pressure connective device, high-pressure fuel pump, and method for producing a high-pressure connection device for a high-pressure fuel pump

The present disclosure relates to fuel delivery systems for a motor vehicle. Some embodiments include a housing with a wall and a connector opening, a high-pressure connector including a wall circumferentially bordering a recess extending along a longitudinal central axis of the high-pressure connector, 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 high-pressure connector may have a housing connector region, an intermediate region, and a transition region. An outer diameter of the high-pressure connector is larger in the housing connector region than in the intermediate region and the inner diameter is larger in the housing connector region than in the intermediate region. The wall of the housing delimits a recess around the connector opening. 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.

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Cham, Germany

Eyk Heinemann