| 1/00 | Details of nuclear power plant (control G21D 3/00) |
| 1/02 | Details of nuclear power plant (control G21D 3/00) Arrangements of auxiliary equipment |
| 1/04 | Details of nuclear power plant (control G21D 3/00) Pumping arrangements (by means within the reactor pressure vessel G21C 15/24
) |
| 3/00 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) |
| 3/02 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Manual control |
| 3/04 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Safety arrangements (emergency protection of reactor G21C 9/00) |
| 3/06 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Safety arrangements (emergency protection of reactor G21C 9/00) responsive to faults within the plant (in the reactor G21C 9/02
) |
| 3/08 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Regulation of any parameters in the plant |
| 3/10 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Regulation of any parameters in the plant by a combination of a variable derived from neutron flux with other controlling variables, e.g. derived from temperature, cooling flow, pressure |
| 3/12 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Regulation of any parameters in the plant by adjustment of the reactor in response only to changes in engine demand |
| 3/14 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Regulation of any parameters in the plant by adjustment of the reactor in response only to changes in engine demand Varying flow of coolant |
| 3/16 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Regulation of any parameters in the plant by adjustment of the reactor in response only to changes in engine demand Varying reactivity |
| 3/18 | Control of nuclear power plant (control of nuclear reaction G21C 7/00
) Regulation of any parameters in the plant by adjustment of plant external to the reactor only in response to change in reactivity |
| 5/00 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy |
| 5/02 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy Reactor and engine structurally combined, e.g. portable |
| 5/04 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy Reactor and engine not structurally combined |
| 5/06 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy Reactor and engine not structurally combined with engine working medium circulating through reactor core |
| 5/08 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy Reactor and engine not structurally combined with engine working medium heated in a heat exchanger by the reactor coolant |
| 5/10 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy Reactor and engine not structurally combined with engine working medium heated in a heat exchanger by the reactor coolant Liquid working medium partially heated by reactor and vaporised by heat source external to the core, e.g. with oil heating |
| 5/12 | Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy Reactor and engine not structurally combined with engine working medium heated in a heat exchanger by the reactor coolant Liquid working medium vaporised by reactor coolant |