Siemens Energy, Inc.

Kyle L Landry

Timothy A Fox

Walter Ray Laster

Reinhard Schilp

Weidong Cai

A fuel injector () for alternate fuels (A,B) with different energy densities. Vanes (B) extend radially from a fuel delivery tube structure (B) with first and second fuel supply channels (A,B). Each vane has first and second radial passages (A,B) communicating with the respective fuel supply channels, and first and second sets of apertures (A,B). The first fuel supply channel, first radial passage, and first apertures form a first fuel delivery pathway providing a first fuel flow rate at a given fuel delivery pathway backpressure that is essentially common to both sets of fuel delivery pathway apertures. The second fuel supply channel, second radial passage, and second apertures form a second fuel delivery pathway providing a second fuel flow rate that may be at least 1 about twice the first fuel flow rate at the given fuel delivery pathway backpressure.

Flex-fuel injector for gas turbines

A fuel injector assembly includes a fuel injector that provides fuel to be mixed with air for ignition in a combustor. The fuel injector assembly includes a fuel shroud and a plurality of spanning members. The spanning members are spaced circumferentially on the fuel shroud between the fuel shroud and a base plate assembly, which supports the fuel injector assembly within the combustor. The spanning members space the fuel shroud from the base plate assembly such that an annular gap is formed therebetween. The gap permits a flow of purge air therethrough to be mixed with compressed air entering the fuel shroud and with fuel provided by the fuel injector. The spanning members comprise elongate members having upstream ends that are circumferentially offset from opposed downstream ends so that the spanning members provide tangential velocity to the purge air flowing through the annular gap.

Growing community of inventors

Winter Park, FL, United States of America

Kyle L Landry