Pratt-whitney Canada Corp

Joseph Daniel Maxim Cirtwill

Kian McCaldon

David Waddleton

Cédric Saintignan

James Robert Jarvo

Ignazio Broccolini

Marc-Andre Tremblay

Marc-André Tremblay

Stephen Tarling

Kian Mccaldon

Methods and systems of operating a gas turbine engine in a low-power condition are provided. In one embodiment, the method includes supplying fuel to a combustor by supplying fuel to a first fuel manifold and a second fuel manifold of the gas turbine engine. The method also includes, while supplying fuel to the combustor by supplying fuel to the first fuel manifold: stopping supplying fuel to the second fuel manifold; and supplying pressurized air to the second fuel manifold to flush fuel in the second fuel manifold into the combustor and hinder coking in the second fuel manifold and associated fuel nozzles.

System and method for purging a fuel manifold of a gas turbine engine through a flow divider valve

Methods and systems of operating a gas turbine engine in a low-power condition are provided. In one embodiment, the method includes supplying fuel to the combustor by supplying fuel to the first fuel manifold via a first flow divider valve and supplying fuel to the second fuel manifold via a second flow divider valve. While supplying fuel to the combustor by supplying fuel to the first fuel manifold, the method includes stopping supplying fuel to the second fuel manifold and supplying pressurized gas to the second fuel manifold via the second flow divider valve to flush fuel in the second fuel manifold into the combustor and hinder coking in the second fuel manifold and associated nozzles.

System and method for purging a fuel manifold of a gas turbine engine using a flow divider assembly

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Gravenhurst, Canada

Joseph Daniel Maxim Cirtwill