FUEL MANIFOLD AND FUEL INJECTOR ARRANGEMENT FOR A COMBUSTION CHAMBER

摘要

Each fuel injector has a main nozzle and pilot nozzle. A main fuel manifold to supply fuel to the main nozzle of each fuel injector and pilot fuel manifold to supply fuel to the pilot nozzle of each fuel injector. The main fuel manifold includes plurality of flexible main fuel pipes. Also, plurality of cross-piece connectors including a stem and four arms. The stem of each connector mounted on one fuel injector. The first and third arms extend in opposite directions from the stem and second and fourth arms extend in opposite directions from the stem. Each fuel pipe interconnects the first arm of one connector with a third arm of an adjacent connector and each connector so the first and third arms are at an angle relative perpendicular to the axis of the annular combustion chamber casing so the main fuel manifold extends around the combustion chamber casing sinusoidally.

主权项

1. A fuel manifold and fuel injector arrangement for supplying fuel to at least one combustion chamber comprising an annular combustion chamber casing arranged around the at least one combustion chamber, a plurality of circumferentially spaced fuel injectors arranged to supply fuel into the at least one combustion chamber, each fuel injector having a main fuel nozzle and a pilot fuel nozzle, a main fuel manifold arranged to supply fuel to the main fuel nozzle of each of the fuel injectors, at least one pilot fuel manifold arranged to supply fuel to the pilot fuel nozzle of each of the fuel injectors, each fuel injector having a fuel feed arm extending through a corresponding aperture in the annular combustion chamber casing, the main fuel manifold comprising a plurality of flexible main fuel pipes, the arrangement further comprising a plurality of first connectors, each first connector comprising a stem and at least three arms, the stem of each first connector being mounted on an outer end of a respective one of the fuel feed arms, the first and third arms extending in opposite directions from the stem, the second arm extending from the stem, each flexible main fuel pipe interconnecting the first arm of one first connector with a third arm of an adjacent first connector, each first connector being arranged such that the first and third arms are arranged at an angle relative to a plane perpendicular to the axis of the annular combustion chamber casing such that the main fuel manifold extends around the combustion chamber casing sinusoidally, and the second arm of each first connector being connected to the pilot fuel manifold.