Patent ID: 6039031
Filing Date: 2000-03-21
Classification: F02M

Abstract:
A device for fastening and sealing a metering valve (24) in an internal combustion engine fuel injector (11), wherein the injector (11) comprises a hollow body (12) supporting a nozzle, and the metering valve (24) has a valve body (26) housed in a seat (21) of said hollow body (12); said valve body (26) having a flat surface (28) engaged by a ring nut (31) in said hollow body (12); characterized in that said valve body (26) comprises a portion (52) having an outer truncated-cone-shaped surface (53); said seat (21) comprising a portion (54) having an inner truncated-cone-shaped surface (56); said truncated-cone-shaped surfaces (53, 56) having the same taper, and engaging mutually in fluidtight manner by virtue of said ring nut (31).