Patent ID: 8678300
Filing Date: 2014-03-25
Classification: F01N

Abstract:
1. Structure for supplying fluid to an exhaust passage of a fuel system, the structure comprising: a unitary electrically operated valve constructed and arranged to receive a supply of fluid and to deliver the fluid to the exhaust passage, a water jacket separate from the valve and having an inlet and an outlet on a common axis, with the inlet in fluid communication with the outlet, the water jacket surrounding at least a portion of the valve disposed between the inlet and the outlet so as to provide direct water-cooling of the valve, and at least one O-ring seal, between the water jacket and the valve, constructed and arranged to prevent water from leaking past the valve, wherein the valve is a gasoline-type fuel injector having a solenoid coil and a non-precision orifice, integral with the fuel injector, as an outlet disposed to inject a generally linear stream of the fluid directly into the exhaust passage, and wherein the portion of the valve that is surrounded by the water jacket is integral with and generally adjacent to the coil.