| 摘要 |
<p>A fuel and air injector module (10) is mounted on the front end of a combustor (12) for a gas turbine engine for admitting the combustion air and dilution air into the center of the burner where it mixes and flows radially outward toward the peripheral burner walls. The module (10) includes a pair of concentric tubes (30, 36) spaced radially relative to each other for defining a central passageway for admitting secondary air for the combustion air and dilution air of the burner, the outer (30) of said pair of concentric tubes (30, 36) extending further axially into said burner than the inner of said pair of concentric tubes, a concentric outer casing member (32) spaced radially from said outer (30) of said pair of concentric tubes (30, 36) defining an annular passageway (50) opened at its fore end for admitting primary air into the burner, swirl vanes (52) for imparting a swirling momentum to said primary air, and means for admitting fuel into said annular passageway for mixing with said air.</p> |
