Patent ID: 6722586
Filing Date: 2004-04-20
Classification: F02M

Abstract:
Injector for injecting fuel into combustion chambers of combustion engines, having an injector housing, in which a nozzle needle, enclosed by a nozzle chamber is movable back and forth vertically, the nozzle needle being movable back and forth vertically along guiding sections within the injector housing and pressed at its seat against the injector housing by means of a thick spring, comprising said nozzle needle includes a constricted section defining a ring canal between said injector housing and said nozzle needle, and said nozzle needle further containing a conical section in direction of a seat of said nozzle needle, said conical section below said ring canal displaying a throttle surface, and said injector housing displaying on an inside thereof, a control surface lying opposite said throttle surface, said throttle surface inclined relative to said control surface at an angle &dgr;.