Replaceable orifice for combustion tuning and related method
AssigneeGeneral Electric Company
InventorsJeffrey Lebegue, Neal W. Grooms
Life of this patent
Estimating the term…
Abstract
A combustor assembly having a transition piece and at least one orifice assembly in the transition piece, the orifice assembly comprising: a boss having an outside periphery and an inside periphery, the inside periphery including an annular seat and an upstanding flange formed with an annular, inwardly facing retaining ring groove, the boss fixed within an opening in the transition piece; an orifice plate having a bottom surface that is adapted to be received on the annular seat; and a retaining ring located in the retaining ring groove and at least partially engaged with the orifice plate.
Claims17
A combustor assembly having a transition piece and at least one orifice assembly in said transition piece, the orifice assembly comprising:
- a boss having an outside periphery and an inside periphery, said inside periphery including an annular seat and an upstanding flange formed with an annular, inwardly facing retaining ring groove, the boss fixed within an opening in the transition piece;
- an orifice plate having a bottom surface that is adapted to be received on said annular seat;
- and
- a retaining ring located in said retaining ring groove and at least partially engaged with said orifice plate.
A boss and orifice plate assembly comprising an annular boss adapted to be secured in a hole formed in a combustor component, said boss formed with an annular seat supporting a replaceable orifice plate, and an annular retaining ring groove adjacent said seat, said seat extending radially inwardly of said annular retaining ring groove;
- and
- a retaining ring seated in said retaining ring groove and at least partially and resiliently engaged between a surface of said groove and a surface of said orifice plate.
A method of adjusting the size of dilution air holes in a turbine combustor component comprising:
- (a) inserting a boss into a dilution air hole having a first diameter and welding the boss in place;
- (b) locating an orifice plate on an annular seat formed in the boss, the orifice plate having a center hole formed with a second diameter smaller than said first diameter;
- and
- (c) securing a retaining ring in a groove in the boss, in overlying and at least partially engaging relationship with the orifice plate, wherein the retaining ring resiliently braces the orifice plate against the seat.
Dependencies are inferred from the claim text.