Patent ID: 6491025
Filing Date: 2002-12-10
Classification: F02M

Abstract:
A nozzle injection apparatus for use in internal combustion engines, said apparatus comprising:a fuel pump for intermittently pressurizing fuel; an injection conduit in fluid communication with said fuel pump, said injection conduit permitting said pressurized fuel to be communicated to a fuel injection nozzle; a high pressure manifold in fluid communication with said fuel pump and said nozzle, wherein said high pressure manifold is oriented along said injection conduit between said fuel pump and said nozzle and accumulates said pressurized fuel which is residually left in said injection conduit between said intermittent pressurization of said fuel; said high pressure manifold includes a first valve assembly for controlling the passage of said pressurized fuel from said fuel pump to said nozzle; and said high pressure manifold includes a second valve assembly for controlling the passage of said residual pressurized fuel from said injection conduit to said high pressure manifold.