Unlock instant, AI-driven research and patent intelligence for your innovation.

Arrangement for steering and supplying propulsion power to propulsion system

Inactive Publication Date: 2013-11-28
ABB OY
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a system that can generate energy efficiently for a marine vessel, regardless of its operation and power demand. This system reduces electrical losses compared to other electrical propulsion systems.

Problems solved by technology

As is known in the art, the propulsion devices can consume the majority of the energy expended in the marine vessels.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Arrangement for steering and supplying propulsion power to propulsion system
  • Arrangement for steering and supplying propulsion power to propulsion system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010]A new and cost-effective exemplary arrangement is disclosed to supply electric power in a ship or marine vessel.

[0011]An exemplary arrangement for steering and supplying propulsion power to a contra rotating propeller (CRP) propulsion system in a marine vessel can include a first propeller driven by a rotating power unit and a second propeller driven by an AC motor. The second propeller can be rotated in an opposite direction relative to the first propeller, and an AC generator can be coupled to mechanical output shaft of the power unit and driven by a rotating power unit, whereby the AC generator is electrically connected to the AC motor. In an exemplary arrangement: (i) the AC motor and the AC generator can have the same electrical frequency, (ii) another electrical power source can be electrically connectable to the AC motor parallel to the AC generator, (iii) the shaft of the second propeller can be mounted rotatable in a support structure which is attached to a hull of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An arrangement for steering and supplying propulsion power to a contra rotating propeller(s) (CRP) propulsion system in a marine vessel is disclosed. The arrangement can include a first propeller, a second propeller driven by an AC motor, and an AC generator. The AC motor and AC generator can have the same electrical frequency. Another electrical power source can be electrically connectable to the AC motor in parallel to the AC generator. A shaft of the second propeller is mounted rotatable in a support structure which is attached to a hull of the marine vessel, and a rudder is supported in a manner allowing pivotal movement of the rudder relative to the support structure.

Description

RELATED APPLICATION[0001]This application claims priority as a continuation application under 35 U.S.C. §120 to PCT / EP2012 / 051561, which was filed as an International Application on Jan. 31, 2012 designating the U.S., and which claims priority to European Application 11152721.4 filed in Europe on Jan. 31, 2011. The entire contents of these applications are hereby incorporated by reference in their entireties.FIELD[0002]The present disclosure relates to an arrangement for steering and supplying propulsion power to a contra rotating propeller (CRP) propulsion system in a marine vessel.BACKGROUND INFORMATION[0003]The propulsion power of large ships or marine vessels is generated by a rotating power unit, whose energy source is for example oil, gas, or nuclear power. The rotating power unit may be a diesel engine, gas turbine or nuclear power reactor rotating turbine. The mechanical output shaft is either directly or via a gear coupled to the shaft of the propeller, or the rotating powe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B63H5/10B63H21/17
CPCB63H5/10B63H21/17B63H23/24Y02T70/5236
Inventor KOKKILA, KIMMO
Owner ABB OY