Patent ID: 6622700
Filing Date: 2003-09-23
Classification: F02M

Abstract:
A fuel injection system for an internal combustion engine comprising:a fuel injector having an injector housing with first and second opposing portions with an injector passe extending between said first and second portion; and a valve disposed in said injector passage for selectively permitting fuel to flow from said first portion to said second portion; a fuel rail having a fuel passage having a first opening said first portion with said injector in fluid communication with said fuel passage; an intake manifold having a second opening receiving said second portion, wherein said intake manifold includes an upper portion having a plenum terminating in a plurality of apertures, and a lower portion secured to said upper portion with said lower portion having a plurality of individual passageways with said each of said plurality of apertures in fluid communication with a corresponding one of said plurality of passageways and said second portion of said injector in one of said passage; and a polymer layer extending from said fuel rail and said intake manifold about at least a portion of said fuel injector sealing said first and second portions respectively to said fuel rail and said intake manifold for preventing fuel from leaking from the fuel injection system.