Internal Combustion Engine with an Orientation Apparatus for Orienting a Fuel Injector with respect to the Manifold or the Head, and the Corresponding Method of Orienting

摘要

A top feed fuel injector (10) for an internal combustion engine includes a housing (12); a fuel passage (14) within the housing; an electrically controlled valve mechanism (16) for controlling fuel flow through the fuel passage; and a radially extending protrusion (18) on the housing, the radially extending protrusion configured to mate with a void (26) in a manifold or head in which the fuel injector is inserted such that the fuel injector maintains its orientation with respect to the manifold or head. Another aspect of the invention is a top feed fuel injector for an internal combustion engine including a housing (12); a fuel passage (14) within the housing; and an electrically controlled valve mechanism (16) for controlling fuel flow through the fuel passage; wherein the housing (12) defines a radially inwardly extending opening (38), the radially inwardly extending opening configured to mate with a protrusion (46) on a manifold or head in which the fuel injector is inserted such that the fuel injector maintains its orientation with respect to the manifold or head. The invention results in a more precise alignment of the injector fuel spray with respect to the intake valves. <IMAGE>