Bild 3: Funktionsschema des Ringkolbenmotors, Bauart Esselbe: Je zwei Kolben gleich- und gegensinnig laufend. Viertakt-Ottomotor, Bohrung 65 mm, Hub 270 mm, Leistung 44 kW bei 1200/min, Baujahr 1912 Fig. 3: Annular piston engine, designed by Esselbé, each two pistons move in the same and the others in a counter-direction. Four-stroke spark ignition engine, bore 65 mm, stroke 270 mm, output 44 kW (60 HP), speed 1200 r.p.m, year of construction 1912
Fig. 3a: Annular piston engine, designed by Esselbé, each two pistons move in the same and the others in a counter-direction. Four-stroke spark ignition engine, bore 65 mm, stroke 270 mm, output 44 kW (60 HP), speed 1200 r.p.m, year of construction 1912
