Free Piston


Single Crankshaft


Double Crankshaft


Multiple Crankshafts


Rotary Engines


Barrel Engines














Hot Gas Generator


Single Throw Crankshaft


Spur Gear Drive


Three Crankshafts


Oscillatory


Swash Plate


SIGMA


4-Bar Chain


Junkers  Mo3, Mo8, M1


Triangular


Mukherjee


Sterling


GM  Hyprex


Atkinson


Junkers  Jumo 204


Napier Deltic


Leggat


Wooler


Ford 704




Junkers  Jumo 205




Tschudi


Alfaro




Two Throw Cranks


Junkers  Jumo 207


Three Crankshafts








Fullagar


Sulzer 6G18


Star




Cam


Linear Alternator




Sulzer 8G18


Tekon Stellar




K Cycle




Three Throw Cranks


RR K60






Michel


Sandia


Inline


Leyland L60


Four Crankshafts




Fair Diesel




Wittig


Coventry  Climax H30


Junkers  Jumo 223






Compressed Air


Junkers HK


Malysheva Plant 1


Fairbanks  Morse Diamond






Junkers


Junkers M12


RR Double 3


Napier Diamond






Pescara


CLM


American Mark


GE Orion








Oechelhauser


Diesel Air


RussKiy Dizel OPE






Rotary Oscillatory


Doxford


FIAT  Tipo 451








Amocatic


Burmiester & Wain


Pattakon








Bussing-NAG


Harland & Wolff


Africar  Bonner










Gobron  Brille


Malysheva Plant 2








Hydrostatic Drive


Pattakon


Achates Power








Krupp


Zoller


Pinnacle










Gotaverken


DKW












Vespa










Three Throw Cranks












Boxer


Bevel Gear Drive










EcoMotor OPOC


Barsanti & Matteucci










Burn  OPOC


Fairbanks  Morse










Gobron  Brille XOPOC


Van  Auken






















Folded Rocker


Folded Cylinder










Centre Pivoted


Valveless










Rootes TS3


BP Ricardo










Rootes TS4


Thiakol  Dynastar










Sulzer ZG












Witzky


Rhombic Linkage










M.A.P.


Achates Power










RR Double Bank


Monolith Engines










Wallace TS3












Timoney TS3


Chain Drive










Hill Diesel


Vincent










Arrol Johnston












Rootes Model












Sturgeon Engine












SLM -Charles Brown












Double Acting OPE
























Folded Rocker












End Pivoted












AW Swing Beam












Barsanti & Matteucci
























Folded Cylinder












Trojan












Trojan 65












Puch












James









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