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Sisu Nemo
Sisu Nemo is a hydraulic radial piston motor type developed and initially produced by Suomen Autoteollisuus (SAT). The system was patented in 1961.
The motor produces a high torque at low speed and it has been primarily used to power both civil and military lorry trailers. A number of other applications have been designated for various industrial applications.
== Development ==
The idea of the motor came from DI Ilmari Louhio who worked in SAT as design engineer. The operating principle was so simple, that when Louhio presented his invention to the technical department and company management, he was not taken seriously; the answer was ''"if that would work, someone would have invented it for long ago"''. However, Louhio didn't give up and in 1959 there was set up a team for developing of the concept. The members were Louhio, Pentti Tarvainen, Antti Saarialho and Lasse Airola; in addition, dozens of people from different departments took part in the development work. A number of prototypes were built and they went through intense testing before the construction was ready for production. The first field test took place in autumn 1960; a Fordson Major tractor was pulling a hydraulically driven trailer. The invention was granted with a patent in January 1961 and it was named ''Nemo'', which comes from ''nestemoottori'' ("fluid motor").〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Sisu Nemo」の詳細全文を読む
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