F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
F02B75/00—Other engines
F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
F02B75/18—Multi-cylinder engines
F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings