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| SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 23 | COMBUSTION APPARATUS; COMBUSTION PROCESSES |
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| F 23 R | GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (chemical aspects of gas production C 06 D 5/00; gas-turbine plants characterised by the arrangement of the combustion chamber in the plant F 02 C 3/14; arrangement of afterburners in jet-propulsion plants F 02 K 3/10; combustion chambers of rocket engine plants F 02 K 9/00; using such products for specific purposes, see the relevant classes for the purposes) |
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3/ | 00 | Continuous combustion chambers using liquid or gaseous fuel [3] |
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3/ | 02 | . | characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F 23 R 3/54; cyclone or vortex type combustion chambers F 23 R 3/58) [3] |
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3/ | 04 | . | . | Air inlet arrangements [3] |
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3/ | 06 | . | . | . | Arrangement of apertures along the flame tube [3] |
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3/ | 08 | . | . | . | . | between annular flame tube sections, e.g. flame tubes with telescopic sections [3] |
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3/ | 10 | . | . | . | for primary air (F 23 R 3/06 takes precedence) [3] |
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3/ | 12 | . | . | . | . | inducing a vortex [3] |
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3/ | 14 | . | . | . | . | . | by using swirl vanes [3] |
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3/ | 16 | . | . | with devices inside the flame tube or the combustion chamber to influence the air or gas flow [3] |
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3/ | 18 | . | . | . | Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants [3] |
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3/ | 20 | . | . | . | . | incorporating fuel injection means [3] |
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3/ | 22 | . | . | . | . | movable, e.g. to an inoperative position; adjustable, e.g. self-adjusting [3] |
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3/ | 24 | . | . | . | . | of the fluid-screen type [3] |
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3/ | 26 | . | . | Controlling the air flow [3] |
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3/ | 28 | . | characterised by the fuel supply (burners F 23 D) [3] |
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3/ | 30 | . | . | comprising fuel prevapourising devices [3] |
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3/ | 32 | . | . | . | being tubular [3] |
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3/ | 34 | . | . | Feeding into different combustion zones [3] |
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3/ | 36 | . | . | Supply of different fuels [3] |
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3/ | 38 | . | . | comprising rotary fuel injection means [3] |
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3/ | 40 | . | characterised by the use of catalytic means [3] |
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3/ | 42 | . | characterised by the arrangement or form of the flame tubes or combustion chambers [3] |
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3/ | 44 | . | . | Combustion chambers comprising a tubular flame tube within a tubular casing (reverse-flow combustion chambers F 23 R 3/54) [3] |
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3/ | 46 | . | . | Combustion chambers comprising an annular arrangement of flame tubes within a common annular casing or within individual casings [3] |
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3/ | 48 | . | . | . | Flame tube interconnectors, e.g. cross-over tubes [3] |
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3/ | 50 | . | . | Combustion chambers comprising an annular flame tube within an annular casing (toroidal combustion chambers F 23 R 3/52) [3] |
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3/ | 52 | . | . | Toroidal combustion chambers [3] |
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3/ | 54 | . | . | Reverse-flow combustion chambers [3] |
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3/ | 56 | . | . | Combustion chambers having rotary flame tubes [3] |
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3/ | 58 | . | . | Cyclone or vortex type combustion chambers [3] |
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3/ | 60 | . | . | Support structures; Attaching or mounting means [3] |
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5/ | 00 | Continuous combustion chambers using solid or pulverulent fuel [3] |
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7/ | 00 | Intermittent or explosive combustion chambers [3] |
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