Method and apparatus for providing fuel to an aircraft engine

Details Method and apparatus for providing fuel to an aircraft engine Method and apparatus for providing fuel to an aircraft engine

2008-05-15

2010-02-09

Kwon, John T (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C123S672000, C701S103000

Reexamination Certificate

active

07658184

ABSTRACT:
An aircraft engine includes an aircraft engine controller configured to detect an actual peak exhaust gas temperature of a cylinder assembly. The aircraft engine controller detects an intersection between a first function representing a relationship between a set of rich exhaust gas temperature signals and a corresponding set of rich fuel-air ratio values and a second function representing a relationship between a set of lean exhaust gas temperature signals and a set of lean fuel-air ratio values. Based upon the intersection between the first and second functions, the engine controller detects an actual peak fuel-air ratio value for the cylinder assembly and can determine if a correction in the fuel-air ratio of a fuel-air mixture provided to the cylinder assembly is required. Accordingly, the engine controller provides each cylinder assembly of the aircraft engine with an accurate fuel-air mixture to allow for operation of the engine with optimal fuel economy.

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