Low pressure fuel injection valve

摘要

A low pressure fuel injection valve has a housing 2 with an internal chamber 3 into which a fuel supply duct 4 opens, and from one end wall 6 of which there extends a central longitudinal bore 7 connected to a spray opening, which is controlled by an outward-opening, spring-loaded valve body 13. In order to achieve a vibration of the valve needle 12, even during a small fuel throughput, that is, in idling and in the lower partial load range of the internal combustion engine, a spring tongue element 17, which is set in oscillation by the pulsations of the supplied fuel and causes the valve needle 12 to vibrate, is arranged in the internal chamber 3 of the housing in front of the longitudinal bore 7. <IMAGE>