Patent ID: 6202420
Filing Date: 2001-03-20
Classification: F23R

Abstract:
A pre-mixing combustion chamber assembly for a gas turbine, comprising:a first main stage housing comprising an inlet end and a discharge end and defining a first pre-mixing chamber disposed therebetween, the discharge end of the first main stage housing being connected to a combustion chamber which is conically shaped and widens as the combustion chamber widens from a pilot end to an outlet end, the combustion chamber having a longitudinal axis and the first pre-mixing chamber having an outer surface whose longitudinal extent meets an outer surface of the conically-shaped combustion chamber substantially tangentially;the combustion chamber defining a main combustion zone, the outlet end of the combustion chamber being connected to a housing section defining an after-combustion zone, the combustion chamber and the housing section being disposed coaxially with respect to each other, the main combustion zone being disposed longitudinally between the pilot end of the combustion chamber and the after-combustion zone, the discharge end of the first main stage housing providing communication between the first pre-mixing chamber and the main combustion zone; andthe pilot end of the combustion chamber being connected to a pilot stage comprising a pilot injection mechanism.