FUEL RAIL ASSEMBLIES

• Main Authors: GERLACH Thomas, COPLIN Nicholas, CALEY David James
• Format: Patent
• Language: English
• Published: 18.05.2017
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A fuel rail assembly for direct injection of a gaseous fuel into an internal combustion engine comprises a fuel rail defining a flow passage for receiving gaseous fuel and a delivery injector for directly injecting fuel received from the fuel rail into a combustion chamber of the engine. The delivery injector is arranged having a selectively openable delivery port for delivery of gaseous fuel into the combustion chamber when the delivery port is in an open condition. The fuel rail assembly further comprises a valve operable so as to interrupt the flow of gaseous fuel to the delivery injector for delivery into the combustion chamber. A containment zone is defined between the valve and the delivery port when the delivery port is in a closed condition, whereby the containment zone is selected so as to be a prescribed volume.