EP1122165A2 - Propulsion à reaction avec moteur électrique - Google Patents

Propulsion à reaction avec moteur électrique Download PDF

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Publication number
EP1122165A2
EP1122165A2 EP01100769A EP01100769A EP1122165A2 EP 1122165 A2 EP1122165 A2 EP 1122165A2 EP 01100769 A EP01100769 A EP 01100769A EP 01100769 A EP01100769 A EP 01100769A EP 1122165 A2 EP1122165 A2 EP 1122165A2
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
jet drive
drive according
motor
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP01100769A
Other languages
German (de)
English (en)
Other versions
EP1122165A3 (fr
EP1122165B1 (fr
Inventor
Lothar Bieschewski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1122165A2 publication Critical patent/EP1122165A2/fr
Publication of EP1122165A3 publication Critical patent/EP1122165A3/fr
Application granted granted Critical
Publication of EP1122165B1 publication Critical patent/EP1122165B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/16—Propellers having a shrouding ring attached to blades
    • B63H2001/165—Hubless propellers, e.g. peripherally driven shrouds with blades projecting from the shrouds' inside surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H2023/005—Transmitting power from propulsion power plant to propulsive elements using a drive acting on the periphery of a rotating propulsive element, e.g. on a dented circumferential ring on a propeller, or a propeller acting as rotor of an electric motor

Definitions

  • the invention relates to a jet drive of a watercraft with a Jet screw comprising water screw, with an annular hollow as the jet pipe Rotor of an electric motor is provided with the hollow stator surrounding the rotor and the water screw is fixed to the inner surface of the rotor.
  • a jet drive with a water screw is described in EP 0 452 538 B1.
  • the propeller can have the shape of a snail.
  • the runner is supposed to carry an armature winding over one Is to supply the collector with electricity.
  • a magnetic winding (in a chamber embedded in the stator body).
  • the familiar envisaged power supply for the rotor winding is only difficult in practice to realize.
  • the jet drive designed as an electric motor must namely be operated entirely in water, so that the collector is isolated in an Housing is to be accommodated.
  • the invention is based on the further object of designing the jet drive in such a way that that insulation problems do not occur on rotating parts and perpendicular to the Cross section of stator and rotor measured less than 50% of the motor axis total cross-section of the motor ring measured in the same plane.
  • the solution is characterized by the Training of the electric motor as a three-phase asynchronous motor with short-circuit rotor, preferably with star-delta starting, the stator winding in the sense of a Reduction of the stator cross-section measured perpendicular to the motor axis a variety of stator poles is distributed.
  • Stands and runners are built up as an evenly grooved sheet package.
  • the three-phase winding (primary winding) provided in the stator is preferred in Star or delta switched.
  • the short-circuit rotor contains in the grooves of his Carrier sheet stack inserted copper rods, preferably with rings on the front should be soldered.
  • the conductor or face connections can also be on other ways, e.g. in the casting process.
  • a three-pole asynchronous motor in the sense of the invention can for example 36 to 96, in particular more than 60, preferably 72, stand slots and have a corresponding number of rotor grooves.
  • the Rotor should preferably rotate in a radial ball bearing within the stator, is about the size ratios, especially the slot size and back thickness of the runner, regarding the ratio of iron to copper and in a first constructive step, the number of poles should be such that the motor itself, e.g. regarding the starting torque is optimally coordinated.
  • You can the rotor and stand package are laminated from grooved dynamo sheets, so that the rotor grooves or stator poles already when assembling the laminated core arise.
  • the engine power can be adjusted to the respective Use case, e.g. the optimum efficiency at a given speed a water screw, by choosing the axial rotor and stator length, that is the number of sheets included in the rotor and stator package can be adjusted. It is considered that a water screw is only one of the screw geometry can deliver specific power to the water.
  • the hollow rotor should have a water screw on its inner surface is fixed, can also rotate in a hollow stand.
  • the runner should are stored and guided in the stand.
  • the runner should preferably be in a Arrangement of deep groove ball bearings or axial tapered bearings can be used because such and similar bearings not only absorb radial but also axial forces. In the steel drive, the axial forces can be relatively large.
  • radial bearings can also be fitted with axial bearings, e.g. Plain bearings, are supplemented.
  • an axial lock can also be provided radially in front of the axial rotor front sides projecting stand edge are provided.
  • Fig. 1 shows a sailboat 1 with attached below the water line 2, annular Jet drive 3.
  • the jet drive 3 according to the invention generally needs an AC power supply.
  • the corresponding voltage can be achieved with a generator 4 positioned at any point of the boat 1 can be generated. If AC power is not immediately available, can be electricity from batteries, Fuel cells, etc. are removed and the jet drive 3 via a Inverters are fed.
  • a jet drive 3 there is the corresponding one Electric motor from a rotor 5 with a drive unit fixed to its inner surface 6 e.g. as a water screw 7.
  • the rotor 5 is in radial ball bearings 8 inside an annular stand 9 is mounted. If necessary can be as axial Securing the rotor 5 (ring) lugs 8a of the stator 9 in front of the rotor end faces 5a collar.
  • the stand 9 has a line 10 to a power supply 4 stator winding 11 to be connected on a laminated core 12.
  • the rotor 5 is - like essentially the stand 9 - formed as a hollow tube.
  • the the associated axis is the rotor axis 13 in both cases.
  • the rotor 5 contains a Rotor laminated core 14 with an integrated rotor winding consisting of short-circuit bars 15.
  • the water screw 7 symbolizes in the described embodiment any unit that controls or drives the motor inside the hollow runner 5.
  • the entire thickness of the stator and rotor ring should be measured radial with respect to the motor axis 13 - be as small as possible. For this reason is a multi-pole, especially 24-pole stator winding according to the invention 11 with 72 grooves in a star-delta connection.
  • Fig. 3 is a section of two opposing individual stands and Runner plates 16, 17 shown.
  • the rotor plate 17 contains rotor grooves 18, in the (not shown) conductor rods, preferably copper rods, are used.
  • the rotor grooves 18 containing radially outer partial ring area 19 of the rotor plate 17 - measured in the radial direction 20 (with respect to the motor axis 13) - about half as wide like the whole sheet 17 made in the radial direction 20.
  • the partial ring area 19 is also referred to as the back of the rotor plate 17.
  • stator slots 21 or stator poles 22 in the stator plate are to be optimized in a similar manner 16 are formed.
  • the upright grooves 21 should be approximately halfway the thickness of the entire stator sheet 16 measured in the radial direction 20 pass.
  • This ratio should be of the order of 1.5 to 2.0: 1, preferably 1.7 to 1.8: 1. If the above ratios should be adhered to, should one work optimally, e.g. starting Engine. In practice, such an engine can only deliver the power which is consumed by its consumer. One fastened in the runner According to the previous findings, water screw cannot be (proportionally) in decrease the amount of power and give it to the water, in the increasing Diameter of the engine whose output increases. Because of this, if the design of an optimized motor, e.g. with water screw becomes, when increasing the ring diameter, the radially measured Ring thicknesses left unchanged and / or the number of in the laminated core 12, 14 containing sheets can be reduced.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Catching Or Destruction (AREA)
  • Motor Or Generator Frames (AREA)
  • Rotary Pumps (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
EP01100769A 2000-01-21 2001-01-13 Propulsion à reaction avec moteur électrique Expired - Lifetime EP1122165B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10002657A DE10002657A1 (de) 2000-01-21 2000-01-21 Elektromotor
DE10002657 2000-01-21

Publications (3)

Publication Number Publication Date
EP1122165A2 true EP1122165A2 (fr) 2001-08-08
EP1122165A3 EP1122165A3 (fr) 2001-08-16
EP1122165B1 EP1122165B1 (fr) 2004-08-04

Family

ID=7628371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100769A Expired - Lifetime EP1122165B1 (fr) 2000-01-21 2001-01-13 Propulsion à reaction avec moteur électrique

Country Status (4)

Country Link
EP (1) EP1122165B1 (fr)
AT (1) ATE272530T1 (fr)
DE (2) DE10002657A1 (fr)
ES (1) ES2225309T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003082669A1 (fr) * 2002-03-29 2003-10-09 Alstom Schilling Robotics Propulseur destine a des vaisseaux sous-marins
WO2006133606A1 (fr) * 2005-06-17 2006-12-21 Wisepoint Technology Co., Ltd. Propulseur a reaction
EP1840026A3 (fr) * 2006-03-31 2014-06-04 Goriziane S.p.A. Système de traction électrique utilisant une volute

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158320A1 (de) * 2001-11-28 2003-06-18 Siemens Ag Schiffsantrieb
DE102006003089B3 (de) * 2006-01-20 2007-10-11 Lothar Bieschewski Querstrahlruder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452538B1 (fr) 1990-02-06 1994-12-21 Reinhard Gabriel Propulseur à réaction pour bateaux et avions ainsi que pompes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867883C (de) * 1944-04-06 1953-02-19 Siemens Ag Elektrisch angetriebene Motorpumpe bzw. Verdichter
GB718857A (en) * 1952-01-14 1954-11-24 Harry Herbert Hoke Jr Improvements relating to the propulsion of marine craft
DE3231674A1 (de) * 1982-08-26 1984-03-01 Robert Bosch Gmbh, 7000 Stuttgart Elektromaschine, insbesondere als antrieb fuer eine umwaelzpumpe
DE3718954A1 (de) * 1987-06-05 1988-12-22 Uwe Gartmann Propeller-anordnung, insbesondere fuer schiffsantriebe
US5306183A (en) * 1993-02-25 1994-04-26 Harbor Branch Oceanographic Institute Inc. Propulsion systems for submarine vessels
EP0903835A1 (fr) * 1995-04-03 1999-03-24 Z&D Ltd. Pompe à écoulement axial/ hélice marine
DE29713724U1 (de) * 1997-08-01 1997-09-25 Dornier Gmbh Lindauer Rotations-Kantendreher mit direkt elektromagnetischem Antrieb für Webmaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452538B1 (fr) 1990-02-06 1994-12-21 Reinhard Gabriel Propulseur à réaction pour bateaux et avions ainsi que pompes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003082669A1 (fr) * 2002-03-29 2003-10-09 Alstom Schilling Robotics Propulseur destine a des vaisseaux sous-marins
US6692319B2 (en) 2002-03-29 2004-02-17 Alstom Shilling Robotics Thruster for submarine vessels
WO2006133606A1 (fr) * 2005-06-17 2006-12-21 Wisepoint Technology Co., Ltd. Propulseur a reaction
CN1880167B (zh) * 2005-06-17 2010-04-14 智点科技股份有限公司 喷射流体集束推进器
EP1840026A3 (fr) * 2006-03-31 2014-06-04 Goriziane S.p.A. Système de traction électrique utilisant une volute

Also Published As

Publication number Publication date
DE10002657A1 (de) 2001-07-26
DE50103047D1 (de) 2004-09-09
ATE272530T1 (de) 2004-08-15
ES2225309T3 (es) 2005-03-16
EP1122165A3 (fr) 2001-08-16
EP1122165B1 (fr) 2004-08-04

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