Patent ID: 7222613
Filing Date: 2007-05-29
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A fuel delivery system for an engine including: a liquid injector for receiving liquid gas and for ejecting liquid gas in liquid form to the cylinders of an engine; means for preventing vaporisation or bubbling of the liquid gas in the liquid injector so the liquid gas is ejected from the injector in liquid form; collection means for collecting vaporised liquid gas; a bleed injector for delivering the collected liquid gas vapour to the cylinder of the engine; and wherein the system includes liquid gas supply means for supplying liquid gas for ejection by the injector, the collection means comprises a debubbling chamber in which bubbled or vaporised liquid gas is collected, the injector being located in the chamber so that the collected vapour facilitates cooling of the injector, and a vapour supply line for supplying vapour from the chamber to the bleed injector.