Other engines

Child Classifications

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• F02B 75/002
• F02B 75/005
• F02B 75/007
• F02B 75/02 Engines characterised by their cycles, e.g. six-stroke
• F02B 75/04 Engines with variable distances between pistons at top dead-centre positions and cylinder heads
• F02B 75/06 Engines with means for equalising torque
• F02B 75/08 Engines with means for preventing corrosion in gas-swept spaces
• F02B 75/10 Engines with means for rendering exhaust gases innocuous (apparatus per se F01N3/00)
• F02B 75/12 Other methods of operation
• F02B 75/16 Engines characterised by number of cylinders, e.g. single-cylinder engines (F02B75/26 takes precedence)
• F02B 75/26 Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis
• F02B 75/28 Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders (arranged oppositely relative to main shaft F02B75/24)
• F02B 75/32 Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
• F02B 75/34 Ultra-small engines, e.g. for driving models
• F02B 75/36 Engines with parts of combustion- or working-chamber walls resiliently yielding under pressure
• F02B 75/40 Other reciprocating-piston engines