Tangentially aligned pre-mixing combustion chamber for a gas turbine

A pre-mixing combustion chamber assembly for a gas turbine, the pre-mixing chamber assembly 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 conical combustion chamber,
• the combustion chamber comprising a narrow pilot end and a wider outlet end, 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 housing section being disposed coaxially with respect to each other, the discharge end of the first main stage housing providing communication between the first pre-mixing chamber and the 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;
• and
• the pilot end of the combustion chamber being connected to a pilot stage comprising a pilot injection mechanism.

An annular combustion chamber assembly, comprising:

• an annular combustion chamber comprising an inlet end connected to a plurality of pre-mixing combustion chamber assemblies spaced equidistantly around the inlet end of the annular combustion chamber,
• each pre-mixing combustion chamber comprising p2 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 conical 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-shaded combustion chamber substantially tangentially, the conical combustion chamber comprising a narrow pilot end and a wider outlet end, the conical combustion chamber defining a main combustion zone, the outlet end of the conical combustion chamber being connected to a housing section defining an after-combustion zone, the housing section being connected to the inlet end of the annular combustion chamber, the conical combustion chamber and housing section being disposed coaxially with respect to each other, the discharge end of the first main stage housing providing communication between the first pre-mixing chamber and the conical combustion chamber, and the pilot end of the conical combustion chamber being connected to a pilot stage comprising a pilot injection mechanism.