Counter flow combustion chamber for a gas turbine engine

A combustion chamber for a gas turbine engine comprising:

• a) first wall means defining a first chamber portion having a primary oxidizer inlet and a first outlet, wherein the first wall comprises:
• i) an inner, hot wall;
• ii) an outer, cold wall surrounding the inner, hot wall and spaced therefrom so as to define a cooling passage therebetween;
• and,
• iii) a plurality of perforations defined by the outer, cold wall and communicating with an oxidizer gas chamber so as to allow oxidizer gas to pass through the cooling passage;
• b) fuel injection means operatively associated with the first wall means so as to inject fuel into the first chamber portion to form a fuel/oxidizer mixture;
• c) ignition means operatively associated with the first chamber portion so as to ignite the fuel/oxidizer mixture in the first chamber portion to produce exhaust gases;
• d) second wall means defining a second chamber portion having a second inlet and a second outlet, the second chamber portion oriented such that the second inlet communicates with the first outlet such that the exhaust gases travel in substantially opposite directions through the first and second chamber portions;
• e) third wall means surrounding the first and second wall means so as to define therebetween an oxidizer gas chamber, the third wall means defining a third inlet communicating with a source of oxidizer gas, the oxidizer gas chamber communicating with the primary oxidizer inlet;
• and,
• f) at least one secondary oxidizer intake orifice defined by the second wall means such that the oxidizer gas is admitted through the at least one secondary oxidizer intake orifice to only the second chamber portion.