High shear fuel distributor
AssigneePratt & Whitney Canada Corp.
InventorKian McCaldon
Life of this patent
Estimating the term…
Abstract
A fuel mixture distributor for a turbine engine assembly includes a mixing chamber that is disposed about a central axis from a back wall to an outlet of a combustion chamber, and a fuel inlet that extends into the mixing chamber along the central axis. The fuel inlet includes a plurality of fuel openings that are angled relative to the central axis and a first air inlet that encircles the mixing chamber and is spaced apart from the fuel inlet. The first air inlet includes a plurality of first air openings that introduce a first air flow into the mixing chamber. A second air inlet introduces a secondary air flow that is axially forward of the fuel inlet and the first air inlet and proximate to the outlet of the mixing chamber.
Claims20
A fuel mixture distributor for a turbine engine assembly comprising:
- a mixing chamber disposed about a central axis from a back wall to an outlet of a combustion chamber;
- a fuel inlet extending into the mixing chamber along the central axis, the fuel inlet including a plurality of fuel openings angled relative to the central axis;
- a first air inlet encircling the mixing chamber and spaced apart from the fuel inlet, the first air inlet including a plurality of first air openings introducing a first air flow into the mixing chamber;
- and
- a second air inlet disposed forward of the fuel inlet and the first air inlet, the second air inlet introducing a secondary air flow axially forward of the fuel inlet and the first air inlet and proximate to the outlet of the mixing chamber, wherein the second air inlet includes an air conduit that extends between an inlet end spaced a radial distance from an outlet end, wherein the outlet end comprises an opening that is disposed parallel to the central axis to open radially inward into the mixing chamber.
A combustor assembly for a turbine engine comprising:
- a combustor wall defining a combustion chamber;
- and
- a fuel distributor, wherein the fuel distributor includes a mixing chamber disposed about a central axis from a back wall to an outlet to the combustion chamber, a fuel inlet extending into the mixing chamber along the central axis, the fuel inlet including a plurality of fuel openings angled relative to the central axis, a first air inlet including a plurality of first air openings spaced circumferentially apart around the mixing chamber and spaced apart from the fuel inlet, and a second air inlet disposed forward of the fuel openings and the first air inlet, wherein the second air inlet includes an air conduit that extends between an inlet end and an outlet end, the inlet end is spaced a radial distance from the central axis that is greater than a radial distance from the central axis to the outlet end, wherein the outlet end comprises an opening that is disposed parallel to the central axis and opens radially inward into the mixing chamber toward the central axis.
A turbine engine assembly comprising:
- a compressor section in flow series with a turbine section;
- a combustor assembly including a combustion chamber disposed between the compressor section and the turbine section;
- a fuel distributor for introducing a fuel air mixture into the combustion chamber, the fuel distributor including a mixing chamber disposed about a central axis from a back wall to an outlet to the combustion chamber, a fuel inlet extending into the mixing chamber along the central axis, the fuel inlet including a plurality of fuel openings angled relative to the central axis, a first air inlet including a plurality of first air openings spaced circumferentially apart around the mixing chamber and spaced apart from the fuel inlet, and a second air inlet disposed forward of the fuel openings and the first air openings, wherein the second air inlet includes an air conduit that extends between an inlet end and an outlet end, the inlet end is spaced a radial distance from the central axis that is greater than a radial distance from the central axis of the outlet end, wherein the outlet end comprises an opening that is disposed parallel to the central axis and opens radially inward into the mixing chamber toward the central axis;
- and
- a fuel system communicating a fuel in a gaseous phase to the fuel mixture distributor.
Dependencies are inferred from the claim text.