| 3/00 | Continuous combustion chambers using liquid or gaseous fuel |
| 3/02 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) |
| 3/04 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Air inlet arrangements |
| 3/06 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Air inlet arrangements Arrangement of apertures along the flame tube |
| 3/08 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Air inlet arrangements Arrangement of apertures along the flame tube between annular flame tube sections, e.g. flame tubes with telescopic sections |
| 3/10 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Air inlet arrangements for primary air (F23R 3/06 takes precedence) |
| 3/12 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Air inlet arrangements for primary air (F23R 3/06 takes precedence) inducing a vortex |
| 3/14 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Air inlet arrangements for primary air (F23R 3/06 takes precedence) inducing a vortex by using swirl vanes |
| 3/16 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) with devices inside the flame tube or the combustion chamber to influence the air or gas flow |
| 3/18 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) with devices inside the flame tube or the combustion chamber to influence the air or gas flow Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants |
| 3/20 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) with devices inside the flame tube or the combustion chamber to influence the air or gas flow Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants incorporating fuel injection means |
| 3/22 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) with devices inside the flame tube or the combustion chamber to influence the air or gas flow Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants movable, e.g. to an inoperative position; adjustable, e.g. self-adjusting |
| 3/24 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) with devices inside the flame tube or the combustion chamber to influence the air or gas flow Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants of the fluid-screen type |
| 3/26 | Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Controlling the air flow |
| 3/28 | Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply |
| 3/30 | Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply comprising fuel prevapourising devices |
| 3/32 | Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply comprising fuel prevapourising devices being tubular |
| 3/34 | Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply Feeding into different combustion zones |
| 3/36 | Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply Supply of different fuels |
| 3/38 | Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply comprising rotary fuel injection means |