Fuel injection valve for internal combustion engine has annular surface divided into inner and outer annular surfaces with inner one formed by springing annular land

摘要

The valve has a housing including a valve body (2) and a clamping nut (4) partly round it. On the inside, the nut has an annular surface (28) facing the combustion chamber. This annular surface is divided into an inner annular surface and an outer annular surface formed by a springing annular land (32) and the inner surface is higher than the outer one.