Fuel injection valve for internal combustion (IC) engine for motor vehicle, has coating pinched between end faces of lower and upper valve bodies and sealingly surrounding aligned recesses formed on both end faces

摘要

A coating (6) is pinched between end faces (11,16) of lower and upper valve bodies (10,15), with the valve bodies bolted and tightened together, sealingly surrounds the aligned recesses (12,17) at the end faces. The coating may preferably be a two-layer structure consisting of a carrier layer and a compensation layer. The compensation layer is formed of material softer than that of the carrier layer, such as nickel.