| 10/00 | Combustion apparatus characterised by the combination of two or more combustion chambers |
| 10/02 | Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers |
| 20/00 | Combustion apparatus specially adapted for portability or transportability |
| 30/00 | Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber |
| 30/02 | Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts |
| 30/04 | Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel-supporting surfaces that are rotatable around a horizontal or inclined axis and support the fuel on their inside, e.g. cylindrical grates |
| 30/06 | Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel-supporting surfaces that are specially adapted for advancing the fuel through the combustion zone |
| 30/08 | Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel-supporting surfaces that are specially adapted for advancing the fuel through the combustion zone with fuel-supporting surfaces that move through the combustion zone, e.g. with chain grates |
| 30/10 | Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel-supporting surfaces that are specially adapted for advancing the fuel through the combustion zone with fuel-supporting surfaces having fuel advancing elements that are movable, but remain essentially in the same place, e.g. with rollers or reciprocating grate bars |
| 40/00 | Combustion apparatus with driven means for feeding fuel into the combustion chamber |
| 40/02 | Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed by scattering over the fuel-supporting surface |
| 40/04 | Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed from below through an opening in the fuel-supporting surface |
| 40/06 | Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed along the fuel-supporting surface |
| 40/08 | Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed along the fuel-supporting surface into pot- or trough-shaped grates |
| 50/00 | Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone |
| 50/02 | Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom |
| 50/04 | Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the movement of combustion air and flue gases being substantially transverse to the movement of the fuel |
| 50/06 | Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the flue gases being removed downwards through one or more openings in the fuel-supporting surface |
| 50/08 | Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom with fuel-deflecting bodies forming free combustion spaces inside the fuel layer |
| 50/10 | Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom with the combustion zone at the bottom of fuel-filled conduits ending at the surface of a fuel bed |