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eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi

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EUROINVENT 2013<br />

Naval Academy “Mircea Cel Bătrân” Constanta<br />

29.1.<br />

Title EN<br />

Authors<br />

Institution<br />

Patent no.<br />

Description<br />

EN<br />

Class no.<br />

Active steering system contrarotating pr<strong>op</strong>ellers<br />

driven by asynchronous induction motor and<br />

induced toroidal drive<br />

DOBREF VASILE, POPA IONEL, TARABUTA<br />

OCTAVIAN,<br />

Naval Academy “Mircea Cel Bătrân”<br />

Constanta<br />

Patent application<br />

The solution pr<strong>op</strong>osed refers to the active steering system<br />

with transverse tunnel for ships, boats and submersible<br />

vehicles characterized by direct electric drive pr<strong>op</strong>eller,<br />

using induction motors and induced toroidal disc. The<br />

purpose of the new drives steering is direct drive of<br />

contrarotating pr<strong>op</strong>ellers (eliminating mechanical<br />

transmission) rated rotation speed. The technical problem<br />

solved by the new system is to reduce extra weight and<br />

gauge active steering, increasing overall efficiency, reducing<br />

additional maintenance costs, since power is directly<br />

transmitted from the engine to the pr<strong>op</strong>eller without<br />

mechanical transmission. Advantages gained are obvious:<br />

transmit motion between toroidal inductor and induced<br />

whole channel - pr<strong>op</strong>eller is made directly to the nominal<br />

rotation speed; to eliminate mechanical transmission<br />

between the engine and pr<strong>op</strong>eller that increases the gauge,<br />

weight and reduces plant efficiency; plant maintenance is<br />

easy and does not cost much;significantly increase system<br />

reliability.<br />

8. Aviation, car industry and transportation<br />

Image/<br />

Photo<br />

NATIONAL<br />

193

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