WO2002058990A1 - Propeller driven generator for saving electric power on ships - Google Patents

Propeller driven generator for saving electric power on ships Download PDF

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Publication number
WO2002058990A1
WO2002058990A1 PCT/GR2001/000043 GR0100043W WO02058990A1 WO 2002058990 A1 WO2002058990 A1 WO 2002058990A1 GR 0100043 W GR0100043 W GR 0100043W WO 02058990 A1 WO02058990 A1 WO 02058990A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
ship
drawing
propeller
electricity
electric power
Prior art date
Application number
PCT/GR2001/000043
Other languages
French (fr)
Inventor
Petros Aggelopoulos
Original Assignee
Petros Aggelopoulos
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63JAUXILIARIES ON VESSELS
    • B63J3/00Driving of auxiliaries
    • B63J3/02Driving of auxiliaries from propulsion power plant

Abstract

There is a variable pitch screw (4) that is fixed at the stern part of the ship behind the rudder (3), which is supported upon a supporting base (5) and is given motion by of the dead water created by the propeller of the ship (2); it transmits the motion by means of axles and gears (6) (10) to the generator (7) which is connected to an electric panel (9), which by means of a hydraulic system of moving the screw adjusts and controls the production of electric power depending on the needs of the ship.

Description

PROPELLER DRIVEN GENERATOR FOR SAVING ELECTRIC POWER ON SHIPS

DESCRIPTION

It is a system for saving electric power on ships (a propeller generator for producing electricity).

This invention has to do with the production of electricity in order to save electric power on a ship during the voyage. The purpose of the invention is to produce electricity for the needs of the ship more economically.

The invention under consideration has to do with a variable pitch screw, which is fixed next to the propeller and the rudder of the ship, in order to take advantage of the hydrodynamics of the dead water created by the propeller of the ship. So far, this hydrodynamics of the dead water created by the propeller of a ship during its sailing was unexploited.

The advantages of this invention include exactly the fact that we take advantage of the hydrodynamics of the dead water created by the propeller of a ship in order to produce electricity for the necessary consumption of the ship at a low cost.

According to this invention, this is achieved by fixing a variable pitch screw next to the rudder of the ship, where the dead water created by its propeller give thrust to the blades of the variable pitch screw and, by means of axles, cause the revolving of the generator producing electricity.

The above mentioned invention is described below with the aid of an example and with reference to the attached drawing. The drawing (1) shows the stern part of a ship. The drawing (2) shows the propeller of the ship, whereas the drawing (3) shows the rudder of the ship. The drawing (4) presents the variable pitch screw, which is fixed next to the rudder of the ship and is supported upon a supporting base, drawing (5), the blades of which are given thrust by the dead water created by the propeller of the ship and, by means of axles and gears, drawing (6), transmit the motion to the generator, drawing (7).

The moving of the blades of the screw, drawing (4), is done by means of a hydraulic mechanism, drawing (8), depending on the necessary electricity consumption. Drawing (5) shows the supporting base inside which there are fixed the vertical axle transmitting the motion from the variable pitch screw to the generator, drawing (7), as well as the tubes of the hydraulic system, drawing (8), for changing the incline of the screw blades, drawing (4).

In drawing (6), the purpose of the gears is to increase the rotation from the vertical axle so that the size of the generator can be decreased, drawing (7). In drawing (7), one can see the electricity producing generator, where motion is transmitted by means of gears and axles, drawing (6), of the variable pitch screw, drawing (4); this generator is connected to the electric panel, drawing (9), by means of cables.

5

In drawing (9), one can see the electric panel that includes control instruments and a safety device and has the purpose of connecting the generator, drawing (7), to the areas of the ship where electricity is consumed. Additionally, it is connected to the hydraulic mechanism, ιo drawing (8), so that the motion of the blades of the variable pitch screw, drawing (4), is adjusted according to the necessary electricity consumption. During the operation of this system, the blades of the screw, drawing (4), remain at a vertical position so that they do not influence the function of the ship.

4.5

Drawing (10) includes the horizontal axle, the gears that transmit the motion to the vertical axle, drawing (6), and the hydraulic mechanism for changing the position of the screw blades, drawing (4).

20 This invention is being used and produces results when the ship is moving during the voyage.

Claims

It is a system for saving electricity on a ship (a propeller driven generator for producing electricity) which is made up of a variable pitch screw (4) that is fixed at the stern part of the ship behind the rudder in the same straight line, and is supported upon a supporting base (5) and is revolved by of the dead water created by the propeller; by means of axles and gears (6) and (10) as well as of the hydraulic mechanism (8) it transmits the motion to the generator (7) which produces electric power without consuming any fuel, and the adjustment of the electricity produced, and as a result the variability of the pitch, is accomplished by means of an electric panel (9) and a hydraulic mechanism (8) depending on the given necessary electricity consumption of the ship.
PCT/GR2001/000043 2001-01-25 2001-11-27 Propeller driven generator for saving electric power on ships WO2002058990A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GR2001100034A GR1003707B (en) 2001-01-25 2001-01-25 A propeller generator for producing electricity
GR20010100034 2001-01-25

Publications (1)

Publication Number Publication Date
WO2002058990A1 true true WO2002058990A1 (en) 2002-08-01

Family

ID=10944622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GR2001/000043 WO2002058990A1 (en) 2001-01-25 2001-11-27 Propeller driven generator for saving electric power on ships

Country Status (1)

Country Link
WO (1) WO2002058990A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2154063A1 (en) 2008-08-13 2010-02-17 Vesting Projektentwicklungs AG Hybrid auxiliary drive assembly for a sailing yacht
FR2935448A1 (en) * 2008-08-29 2010-03-05 En Autour Du Monde Wind or hydraulic power generator for use on race boat, has working chamber supplied by fluid through supply conduit connected to supply space that is supplied by fluid through supply orifice formed in casing
EP2177750A3 (en) * 2008-10-15 2013-02-13 Martin Eugenio Corradini Hydroelectric turbine-based power-generating system for vessels and submarines
NL1041254A (en) * 2015-04-02 2016-10-10 Europe's Energy Point B V Recovery of kinetic energy poops.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1898973A (en) * 1931-03-03 1933-02-21 Eclipse Aviat Corp Generator equipment
US3238911A (en) * 1964-06-11 1966-03-08 Pazulski Lucian Auxiliary sail boat
US3619632A (en) * 1969-06-02 1971-11-09 Raymond A Labombarde Outboard generator unit for sailboats
DE19541746A1 (en) * 1995-11-09 1997-05-15 Sebacur Ag Drive for propeller driven vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1898973A (en) * 1931-03-03 1933-02-21 Eclipse Aviat Corp Generator equipment
US3238911A (en) * 1964-06-11 1966-03-08 Pazulski Lucian Auxiliary sail boat
US3619632A (en) * 1969-06-02 1971-11-09 Raymond A Labombarde Outboard generator unit for sailboats
DE19541746A1 (en) * 1995-11-09 1997-05-15 Sebacur Ag Drive for propeller driven vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2154063A1 (en) 2008-08-13 2010-02-17 Vesting Projektentwicklungs AG Hybrid auxiliary drive assembly for a sailing yacht
DE102008038896B3 (en) * 2008-08-13 2010-04-08 Vesting Projektentwicklungs Ag Hybrid auxiliary drive assembly for a sailing yacht
FR2935448A1 (en) * 2008-08-29 2010-03-05 En Autour Du Monde Wind or hydraulic power generator for use on race boat, has working chamber supplied by fluid through supply conduit connected to supply space that is supplied by fluid through supply orifice formed in casing
EP2177750A3 (en) * 2008-10-15 2013-02-13 Martin Eugenio Corradini Hydroelectric turbine-based power-generating system for vessels and submarines
NL1041254A (en) * 2015-04-02 2016-10-10 Europe's Energy Point B V Recovery of kinetic energy poops.

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