Patent ID: 6644031
Filing Date: 2003-11-11
Classification: F02C

Abstract:
A fuel injector comprising:an injector body including an inlet for receiving fuel under pressure and first and second fuel outlet paths; a first valve located so as to be responsive to a first predetermined threshold fuel pressure so as to admit fuel into said injector body, a first portion of the fuel in said injector body leaving said injector body through said first fuel outlet path; a second valve associated only with said second fuel outlet path and being responsive to a second predetermined threshold fuel pressure higher than said first predetermined threshold fuel pressure so as to selectively permit another portion of the fuel in said injector body to leave said injector body through said second fuel outlet path, said second valve including a fuel flow opening that increasingly varies in area in proportion to a fuel pressure between said second predetermined threshold fuel pressure and a third predetermined threshold fuel pressure that is higher than said second predetermined threshold fuel pressure, wherein at a fuel pressure greater than said third predetermined threshold fuel pressure, said fuel flow opening area remains constant.