Patent ID: 6865892
Filing Date: 2005-03-15
Classification: F23R

Abstract:
1. A gas turbine combustor having a first combustion chamber in fluid communication with a second combustion chamber, said combustor comprising: a venturi assembly comprising: an upper liner generally annular in shape having a first upper end, a second upper end, a first upper diameter, and a second upper diameter, said first upper diameter and said second upper diameter proximate said second upper end defining a second thickness there between, a plurality of second holes circumferentially spaced about said upper liner and in fluid communication with said first holes and a second passageway radially outward of said upper liner; a lower liner generally annular in shape having a first lower end, a second lower end, a first lower diameter, and a second lower diameter, said first lower diameter and said second lower diameter proximate said first lower end defining a third thickness there between, a plurality of third holes circumferentially spaced about said lower liner proximate said second venturi end, said third holes in fluid communication with said first passageway; and, a cap assembly for securing a plurality of fuel nozzles to said combustor, said cap assembly fixed to said upper liner proximate said first upper end; wherein said venturi assembly is secured to said upper liner and said lower liner in an easily removable manner by a plurality of retaining pins such that said first outer band of said venturi is located radially within said upper liner and said upper liner is located radially within said lower liner.