Patent ID: 6845756

Claim:
In an injector for injecting fuel into the combustion chamber of an internal combustion engine, having an injector housing ( 2 ), in which a pressure chamber ( 3 ) surrounding an insert part ( 7 ) is embodied that can be filled with fuel at high pressure via a high-pressure inlet ( 21 ) and by way of which a control chamber ( 25 ) can be subjected to pressure, the control chamber being defined by the insert part ( 7 ), fixed in the injector housing ( 2 ) in a bore ( 6 , 46 ), and by a valve component ( 26 ), which valve component ( 26 ) executes a stroke motion ( 47 ) inside the insert part ( 7 ), the improvement comprising a one-piece, metal sealing element ( 9 ) received on the circumference ( 8 ) of the insert part ( 7 ) by a nonpositive connection ( 14 ), the sealing element ( 9 ) being subjected to the high pressure prevailing in the pressure chamber ( 3 ), wherein the sealing element ( 9 ) is designed annularly and has a first annular face ( 12 ), which points toward the pressure chamber ( 3 ) and has a second annular face ( 13 ) facing that chamber, which second annular face points toward the bottom ( 5 ) of the pressure chamber ( 3 ), acting as a supporting surface ( 17 ).