Delphi International Operations Luxembourg S.a.r.l.

Christopher S Hardy

Andrew J Limmer

Joseph M Luck

A fuel injector comprises a supply means for high pressure fuel, an injection nozzle including a valve needle engageable with a valve needle seating to control fuel delivery from the injector, a first filling flow path providing flow from the supply means into a control chamber, and a control valve for controlling fuel pressure within the control chamber. The control valve comprises a control valve member slidable within a guide bore of a valve housing. The injector further comprises a drain flow path including a drain restriction and permitting flow from the control chamber to a second valve chamber when the control valve member is in a second state, and a second filling flow path permitting flow from a first valve chamber into the control chamber when the control valve member is in a first state, wherein the second filling flow path bypasses the drain restriction.

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London, United Kingdom

Christopher S Hardy