Injector for injecting fuel in an injection system of an internal combustion engine comprises a valve element or a pressure rod defining a vaporization chamber having an inlet and an outlet in the valve opening direction

摘要

Injector (1) for injecting fuel in an injection system of an internal combustion engine comprises a valve element (5) that can be axially displaced in a first guide bore (4) and opens or closes injection openings, and a pressure rod (6) axially acting on the valve element. The valve element or the pressure rod defines a vaporization chamber (7) having an inlet and an outlet in the valve opening direction. Preferred Features: The vaporization chamber opens radially to the valve element or the pressure rod. The vaporization chamber is connected to a high-pressure chamber (12) by an annular gap formed between the first guide bore and the valve element.