Hohenzollern Locomotive Works

Hohenzollern built a large number of fireless locomotives, including some articulated fireless locomotives with a cab at each end. Hohenzollern's fireless locomotives were unusual in having inside cylinders. The German term for fireless steam locomotive is Dampfspeicherlokomotive, meaning steam storage locomotive. Each locomotive had two 2-axle bogies. On no. 1685 only one axle was powered, but on the others, two axles were powered. For an explanation of wheel arrangements see: AAR wheel arrangement. Nos. 1685 and 2107 (both designed for use in mines) had air-cooled condensers to condense the exhaust steam. ==Diesel locomotives==

Hohenzollern supplied a diesel-mechanical locomotive to the Russian State Railways in the 1920s. This had a constant-mesh gearbox with an individual electromagnetic clutch to engage each gear. Around the same time, Russian State Railways also took delivery of a diesel-electric locomotive, class E el-2, designed in Russia by Professor Lomonosov. Work on this locomotive was started by Hohenzollern, but for political reasons, it was later transferred to Maschinenfabrik Esslingen. ==See also==