Fuel injection valve for combustion engine has valve sealing surface on radially outer edge of valve element biased in center section by holding element with respect to contact with valve seat

摘要

The device has a valve body with a pressure chamber bounded by a disc valve element raised from a valve seat by pressure in the chamber, and an injection opening into the combustion chamber after the controlled cross-section. The valve sealing surface is formed on the radially outer edge of the valve element, which is biased in its center section by a holding element on the valve body with respect to its contact with the valve seat. The device has a valve body (1) with a pressure chamber (26) bounded by a disc valve element (20) interacting with a valve seat (17), from which it is raised by pressure in the pressure chamber, and an injection opening into the combustion chamber after the controlled cross-section. The valve sealing surface (18) is formed on the radially outer edge region of the valve element, which is biased in its center section by a holding element (22) on the valve body with respect to its contact with the valve seat.