US 2015/0030452 A1 · PROPULSION DEVICE FOR SHIP AND SHIP HAVING THE SAME

Abstract

Disclosed are a propulsion device for a ship and a ship having same. The propulsion device, according to an embodiment of the present invention, comprises: a rear propeller fixed to a driveshaft; a front propeller positioned in front of the rear propeller, and supported rotably on the driveshaft; and a counter rotation device for reversing and transmitting the rotation of the driveshaft to the front propeller; a motor for rotating the driveshaft; and an housing, which extends from to the lower part of the hull, and which is installed so as to envelope the counter rotation device and the motor.

Claims7

Dependent claims

A ship propulsion device comprising:

a rear propeller fixed to a drive shaft;
a front propeller rotatably supported by the drive shaft in front of the rear propeller;
a counter rotation unit configured to reverse rotating direction of the drive shaft and transmit reversed rotation to the front propeller;
a motor configured to rotate the drive shaft;
and
a housing configured to extend downward from a hull and surround the counter rotation unit and the motor.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/126,801Filed 23 Sep 2011

Priority

KR 10-2011-005805315 Jun 2011

Published

29 Jan 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

B63H 5/10
Of more than one propeller: of coaxial type, e.g. of counter-rotative type
B63H 1/04
Of rotary type: with rotation axis substantially at right angles to propulsive direction
B63H 5/125
Of propellers: movably mounted with respect to hull, e.g. adjustable in direction , e.g. podded azimuthing thrusters
B63H 5/14
Of propellers: characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose

Propulsion device for ship and ship having the same

Life of this patent

Propulsion device for ship and ship having the same

Life of this patent

Abstract

Claims7