Fuel injection valve

Abstract

The present invention provides a fuel injection valve that suppresses variation in fuel injection performance caused by distortion of an orifice. The fuel injection valve includes: a fuel passage (1), through which fuel is introduced; and an orifice member (3) press-fitted to the inner wall of the fuel passage (1). The orifice member (3) includes: a cylindrical part (6) fixed to the inner wall of the fuel passage (1) by press-fitting; an end wall (7) which covers one end of the cylindrical part (6) and in which the orifice (2) is provided; and an annular stress absorption part (8) interposed between the one end of the cylindrical part (6) and the outer periphery of the end wall (7) to absorb stress caused by the press-fitting.

Dependencies are inferred from the claim text.