Patent ID: 11873993
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A combustor comprising:
a liner defining a combustion chamber;
an air and fuel mixing body received within said liner and upstream of the combustion chamber; the mixing body has a center axis and includes a bluff-body;
a plurality of fuel injection ports on the bluff-body and communicating with a central fuel supply such that fuel passes from the fuel supply passage and into a mixing chamber with a component in an axially downstream direction and a radially outward direction relative to said central axis;
a plurality of inner air swirlers providing air into the mixing chamber with a component in an axially downstream direction, a radially outward direction, and with a circumferential component due to swirler structure; and
the fuel injection ports being downstream of an outlet of the inner air swirlers,
wherein a plurality of outer air swirlers delivers air into the combustion chamber, and downstream of the mixing chamber, and
wherein air is delivered downstream of the plurality of outer air swirlers with a component in an axially downstream direction, a radially inward direction and with a circumferential component due to swirler structure,
wherein the plurality of outer swirlers are inwardly angularly offset from the center axis, and the plurality of inner air swirlers are outwardly angularly offset from the center axis.