IPC 7 English version F23R-F23R 7/00

F23R-F23R00700

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 23

COMBUSTION APPARATUS; COMBUSTION PROCESSES

F 23 R

GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (chemical aspects of gas production C06D 5/00; gas-turbine plants characterised by the arrangement of the combustion chamber in the plant F02C 3/14; arrangement of afterburners in jet-propulsion plants F02K 3/10; combustion chambers of rocket engine plants F02K 9/00; using such products for specific purposes, see the relevant classes for the purposes)

Continuous combustion chambers using liquid or gaseous fuel [3]

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]

Air inlet arrangements [3]

Arrangement of apertures along the flame tube [3]

between annular flame tube sections, e.g. flame tubes with telescopic sections [3]

for primary air (F23R 3/06 takes precedence) [3]

inducing a vortex [3]

by using swirl vanes [3]

with devices inside the flame tube or the combustion chamber to influence the air or gas flow [3]

Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants [3]

incorporating fuel injection means [3]

movable, e.g. to an inoperative position; adjustable, e.g. self-adjusting [3]

of the fluid-screen type [3]

Controlling the air flow [3]

characterised by the fuel supply (burners F23D) [3]

comprising fuel prevapourising devices [3]

being tubular [3]

Feeding into different combustion zones [3]

Supply of different fuels [3]

comprising rotary fuel injection means [3]

characterised by the use of catalytic means [3]

characterised by the arrangement or form of the flame tubes or combustion chambers [3]

Combustion chambers comprising a tubular flame tube within a tubular casing (reverse-flow combustion chambers F23R 3/54) [3]

Combustion chambers comprising an annular arrangement of flame tubes within a common annular casing or within individual casings [3]

Flame tube interconnectors, e.g. cross-over tubes [3]

Combustion chambers comprising an annular flame tube within an annular casing (toroidal combustion chambers F23R 3/52) [3]

Toroidal combustion chambers [3]

Reverse-flow combustion chambers [3]

Combustion chambers having rotary flame tubes [3]

Cyclone or vortex type combustion chambers [3]

Support structures; Attaching or mounting means [3]

Continuous combustion chambers using solid or pulverulent fuel (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C 10/16) [3]

Intermittent or explosive combustion chambers [3]