公开(公告)号：WO2008032167A1

公开(公告)日：2008-03-20

申请号：PCT/IB2007/002586

申请日：2007-09-10

Applicant: CALZONI S.R.L. ,  GHIGNONE, Stefano

Inventor： GHIGNONE, Stefano

IPC: B63H5/10 ,  B63H3/02

CPC classification number: B63H3/04 ,  B63H5/10

Abstract: A propulsion unit for boats or the like comprises two propellers, respectively front (300) and rear (400), coaxial and contra-rotating, rotationally driven by the shaft (2a) of at least a main motor (2), the rear propeller (400) rotating at a speed of rotation different to the speed of rotation of the front propeller (300).

Abstract translation: 用于船等的推进单元包括两个螺旋桨，分别由至少一个主马达（2）的轴（2a）旋转驱动的同轴和反向旋转的前部（300）和后部（400），后部螺旋桨 （400）以与前螺旋桨（300）的旋转速度不同的旋转速度旋转。

公开(公告)号：EP2069194A1

公开(公告)日：2009-06-17

申请号：EP07825077.6

申请日：2007-09-10

Applicant: Calzoni S.r.l.

Inventor： GHIGNONE, Stefano

IPC: B63H5/10 ,  B63H3/02

CPC classification number: B63H3/04 ,  B63H5/10

Abstract: A propulsion unit for boats or the like comprises two propellers, respectively front (300) and rear (400), coaxial and contra-rotating, rotationally driven by the shaft (2a) of at least a main motor (2), the rear propeller (400) rotating at a speed of rotation different to the speed of rotation of the front propeller (300).