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Engines buy in St petersburg
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Russia, St petersburg
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The engine, the motor (from armor.motor setting in motion) — the device transforming any type of energy in mechanical. This term is used since the end of the 19th century along with the word "motor" which from the middle of the 20th century more often call electric motors and the internal combustion engines (ICE).

Engines subdivide on primary and secondary. Carry directly reformative natural energy resources in mechanical work to primary, and to secondary — transforming the energy developed or which is saved up by other sources.

Treat the primary engines (PE) the wind wheel using the wind force, a water wheel and the kettlebell mechanism — they are put in action by the gravitation force (the falling water and force of an attraction), heat engines — in them chemical energy of fuel or atomic energy will be transformed to other types of energy. The electric motor (electric motor), the pneumoengine, a hydraulic engine (hydromotor) belong to the secondary engines (SE).

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