"Wankel Rotary Engine" . "Mazda Wankel engine" . . "engine" . . "3-Rotor" . "Wankel engines" . "4-Rotor" . . . . "13B" . . . "Wankel rotary engined" . . "rotary piston engine" . "Wankel engined motorcycles" . . . . "Rotor" . . "wankel" . . . "Twin Rotor" . . "Wankel design" . "Brian Crighton" . . . "rotary combustion chamber (Wankel) engine" . "3-Rotar" . . . "Wankel RC 2-60 rotary engine" . "Wankel twin-rotary engine" . . "quad-rotor 26B" . "Wankel" . . "Wankel technology" . . "Wankel motorcycle engine" . "rotary-engined" . . . "wankel rotary engine" . . . . . . "Wankel internal combustion engine" . . . "rotary engines" . . . . . "Single rotor Wankel" . "wankel engine" . "Rotary Engine" . . . "Wankel-type" . "rotor" . . "rotary-powered" . "rotary engined" . . "only one power stroke is created per output revolution" . . . . . . "Wankel-engined" . "rotary" . . . "Wankel engine" . "rotary engine" . "Mazda Rotary" . . . . "twin-rotor" . "Wankel rotary" . "Wankel engine" . . . . . . "wankel rotary-engine" . "Wankel \\\"rotary\\\"" . "Wankel rotary engine" . "rotor (Wankel engine)" . . "VAZ-415 Wankel" . . "Wankel Rotary engine" . "Rotary" . "2-Rotor" . "Wankels" . . "fundamentally different design approach" . "Wankel rotary engines" .