F: | SECTION F MECHANICAL ENGINEERING |
F02: | COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS |
F02B: | INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL |
F02B9/00: | Engines characterised by other types of ignition |
F02B9/02: | . with compression ignition |
F02B9/04: | . . Methods of operating |