Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons

Child Classifications

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• F02B 57/02 Fuel or combustion-air supply (cylinder-charge admission or exhaust control F02B57/04)
• F02B 57/04 Control of cylinder-charge admission or exhaust (peculiar to two-stroke engines or to other engines with working-piston-controlled charge admission or exhaust F02B57/06)
• F02B 57/06 Two-stroke engines or other engines with working-piston-controlled cylinder-charge admission or exhaust (with combustion space in centre of star F02B57/10)
• F02B 57/08 Engines with star-shaped cylinder arrangements