| 1/00 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) |
| 1/02 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) with heat supply by hot flue gases from the furnace of the steam boiler |
| 1/04 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) with heat supply by hot flue gases from the furnace of the steam boiler by diverting flow or hot flue gases to separate superheaters operating in reheating cycle, e.g. for reheating steam between a high-pressure turbine stage and an intermediate turbine stage |
| 1/06 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) with heat supply predominantly by radiation |
| 1/08 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) with heat supply predominantly by radiation from heated brickwork or the like |
| 1/10 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) with provision for superheating by throttling |
| 1/12 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) by mixing steam with furnace gases or other combustion products |
| 1/14 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) using heat generated by chemical reactions |
| 1/16 | Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J) by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil |
| 3/00 | Steam superheaters characterised by constructional features; Details or component parts thereof (general aspects of enclosed heat-exchangers F28D) |
| 5/00 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) |
| 5/02 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners |
| 5/04 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by regulating flue gas flow, e.g. by proportioning or diverting |
| 5/06 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by recirculating flue gases |
| 5/08 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by recirculating flue gases preventing furnace gas backflow through recirculating fan |
| 5/10 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by displacing superheater sections |
| 5/12 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by attemperating the superheated steam, e.g. by injected water sprays (spray-mixers B01F 5/18) |
| 5/14 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by attemperating the superheated steam, e.g. by injected water sprays (spray-mixers B01F 5/18) by live steam |
| 5/16 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger |
| 5/18 | Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05) by by-passing steam around superheater sections |