Patent ID: 7014130

Claim:
A high-pressure fuel system, comprising a housing ( 1 ) that includes a first high-pressure body ( 3 ) and a second high-pressure body ( 5 ), which contact one another at a contact face ( 30 ) a high-pressure chamber ( 23 ) embodied in the housing ( 1 ) and extending through the contact face ( 30 ), in which chamber a high fuel pressure exists at least intermittently, a sleevelike wall part ( 7 ) having an outer jacket face and a longitudinal axis ( 15 ), the wall part ( 7 ) surrounding the housing ( 1 ) at least in the region of the contact face ( 30 ) on the outer jacket face, and a leak fuel chamber ( 32 ) formed between the wall part ( 7 ) and the housing ( 1 ), the leak fuel chamber ( 32 ) being sealed off from the outside, further comprising two sealing connections embodied between the wall part ( 7 ) and the housing ( 1 ), one of said sealing connections being formed between the wall part ( 7 ) and the first high-pressure body ( 3 ), and the other said sealing connection formed between the wall part ( 7 ) and the second high-pressure body ( 5 ), wherein the wall part ( 7 ) is a lock nut which engages a thread ( 36 ) embodied on the housing ( 1 ) and thus presses the two high-pressure bodies ( 3 , 5 ) against one another, and wherein at least one sealing connection of the wall part ( 7 ) and the housing ( 1 ) is formed by a sealing ring ( 50 ) disposed between the housing ( 1 ) and the wall part ( 7 ), and wherein the sealing ring ( 50 ) is positioned within an annular groove ( 52 ), which annular groove is disposed within the male thread ( 36 ).