GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C10/16)

Introduced: September 1968

Description

F23R covers combustion chambers and apparatus designed to generate high-pressure or high-velocity combustion products, particularly those used in gas turbines, jet engines, and similar applications requiring rapid gas expansion and discharge. This subclass includes the design, construction, and operation of combustion systems that produce intense thermal energy and directional flow suitable for powering turbomachinery. Technologies encompassed include fuel injection systems, flame stabilization mechanisms, combustor liners, and thermal management strategies specific to high-performance combustion environments. Related adjacent classes cover general combustion apparatus (F23B–F23Q) and specific combustion process details, while F23R focuses on the chamber and system architecture necessary for generating elevated pressure or velocity conditions.

Title

Titles differ between systems:

IPC: GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS

CPC: GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C10/16)

Full Title

Full titles differ between systems:

IPC:

GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS

CPC:

GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C10/16)

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1980.

Child Classifications

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F23R 2900/00 Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor 2nd only +25 CPC CPC only CPC only
F23R 3/00 Continuous combustion chambers using liquid or gaseous fuel since 1980 +3 CPC IPC+CPC Available in IPC and CPC
F23R 5/00 Continuous combustion chambers using solid or pulverulent fuel since 1980 IPC+CPC Available in IPC and CPC
F23R 7/00 Intermittent or explosive combustion chambers since 1980 IPC+CPC Available in IPC and CPC