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A combustor having a combustion liner and at least one combustor orifice assembly, the combustor orifice assembly comprising a boss, an orifice plate that defines an orifice, the orifice plate having a bottom surface that is adapted to be received by the boss, and a retaining ring, whereby the orifi

A combustor having a combustion liner and at least one combustor orifice assembly, the combustor orifice assembly comprising a boss, an orifice plate that defines an orifice, the orifice plate having a bottom surface that is adapted to be received by the boss, and a retaining ring, whereby the orifice plate is retained between the retaining ring and the boss.

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1. A combustor having a combustion liner and at least one combustor orifice assembly, the combustor orifice assembly comprising:a boss having an inside periphery and defining an opening, the boss located on the combustion liner; an orifice plate that defines an orifice, the orifice plate having a bo

1. A combustor having a combustion liner and at least one combustor orifice assembly, the combustor orifice assembly comprising:a boss having an inside periphery and defining an opening, the boss located on the combustion liner; an orifice plate that defines an orifice, the orifice plate having a bottom surface that is adapted to be received by the inside periphery of the boss, the orifice plate separate from the combustion liner; and a retaining ring, whereby the orifice plate is retained between the retaining ring and the boss, wherein the boss has a retaining ring adapted to receive the retaining ring and wherein the retaining ring groove has an angled surface adapted to receive an angled surface of the retaining ring.