GAS INJECTOR WITH IMPROVED CONTACT SURFACES

摘要

The invention relates to a gas injector for injecting a gaseous fuel directly into a combustion chamber of an internal combustion engine, said gas injector comprising a valve closing element (2) for opening and closing a through-opening (3) on a sealing seat (4), a first component (5) having a first surface hardness, and a second component (6) having a second surface hardness. When the gas injector is in a predetermined state, the first component (5) makes contact with the second component (6), and the surface hardness of the first component (5) is greater than a surface hardness of the second component.