Patent ID: 7762235

Claim:
A fuel system for supplying CNG to an internal combustion engine, comprising: a fuel rail; an engine manifold; a CNG fuel injector having a fuel inlet in fluid communication with the fuel rail, a fuel outlet disposed along a longitudinal axis and in fluid communication with the engine manifold, and a closure member between the inlet and the outlet for selectively allowing and preventing fluid flow through the injector; and a member disposed at the fuel outlet and downstream of the closure member, the member extending from an end of the fuel injector at the fuel outlet in a substantially unobstructed manner, the member comprising a generally cylindrical porous side wall and a closed porous end wall that defines a substantially closed volume, the volume suppresses the flow of the CNG as the CNG flows from the fuel outlet, the porous side wall and porous end wall disperse the CNG in multiple directions skewed from the longitudinal axis as the CNG flows from the fuel outlet through pores of at least a portion of both the porous side wall and the porous end wall and into the engine manifold.