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US20110305586A1 - Ship propulsion system having a pump jet - Google Patents

Ship propulsion system having a pump jet Download PDF

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Publication number
US20110305586A1
US20110305586A1 US13/132,759 US200913132759A US2011305586A1 US 20110305586 A1 US20110305586 A1 US 20110305586A1 US 200913132759 A US200913132759 A US 200913132759A US 2011305586 A1 US2011305586 A1 US 2011305586A1
Authority
US
United States
Prior art keywords
propulsion system
ship propulsion
pump jet
motor
pump
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.)
Abandoned
Application number
US13/132,759
Other languages
English (en)
Inventor
Gerd Krautkrämer
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.)
Schottel GmbH
Original Assignee
Schottel GmbH
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
Application filed by Schottel GmbH filed Critical Schottel GmbH
Assigned to SCHOTTEL GMBH reassignment SCHOTTEL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRAUTKRAMER, GERD
Publication of US20110305586A1 publication Critical patent/US20110305586A1/en
Abandoned 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
    • 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
    • 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
    • B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
    • B63H11/101—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means for deflecting jet into a propulsive direction substantially parallel to the plane of the pump outlet opening
    • B63H11/102—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means for deflecting jet into a propulsive direction substantially parallel to the plane of the pump outlet opening the inlet opening and the outlet opening of the pump being substantially coplanar
    • 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
    • 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
    • B63H2011/087—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with radial flow

Definitions

  • the present invention relates to a ship propulsion system having a pump jet according to EP 0 612 657.
  • Such ship propulsion systems are known from practice, and they contain a pump jet as main and/or auxiliary drive.
  • the energy supply occurs, for example, on one hand, via a gear system, with, as desired, a diesel, electric or hydraulic motor connected before it, or directly via an impeller shaft by means of a motor arranged outside of the drive.
  • the electric motors being used are conventional electric motors.
  • the present invention has and achieves the goal of a further improvement, particularly with regard to simplifying the construction, efficiency of the drive, and broadening of the range of possible applications.
  • the invention creates a ship propulsion system with a pump jet, which contains a pump housing and a drive motor, where a rotor of an impeller of the pump jet contains a rotational axis which is not aligned with a control axis of the pump jet.
  • This design can advantageously be further developed so that the rotational axis of the rotor is offset with respect to the control axis of the pump jet, where, furthermore, it is preferred for the rotational axis of the rotor and the control axis of the pump jet to be parallel.
  • the rotational axis of the rotor and the control axis of the pump jet are mutually inclined, where, furthermore, the rotational axis of the rotor and the control axis of the pump jet intersect particularly at one point.
  • the drive motor is an electric motor which is set on the pump housing or integrated partially therein.
  • the electric motor is an asynchronous motor, synchronous motor or permanent magnet motor, and/or in that between the electric motor and parts that transfer force to the impeller, such as teeth, roller bearings and/or shafts are provided.
  • An additional preferred embodiment is one in which the drive motor is a magnet motor integrated in the pump housing.
  • the invention creates a ship propulsion system with a pump jet, which contains a pump housing and a drive motor, where the drive motor is a high-temperature superconducting motor integrated in the pump housing.
  • the magnet motor or high-temperature superconducting motor contains a rotor which is a component of an impeller of the pump jet.
  • An additional preferred embodiment consists in that the magnet motor or high-temperature superconducting motor contains a stator which is a component of a diffuser inner ring of the pump jet.
  • conveyance medium is also used particularly by itself as lubricant and/or coolant.
  • An additional preferred embodiment consists in that the drive of the pump jet is free of force transferring parts, such as teeth, roller bearings and/or shafts.
  • deflection devices are provided which are arranged and/or designed in the inner space of the diffuser housing.
  • the deflection devices are preferably arranged and/or designed so that they eliminate turbulence from a water flow in the inner space of the diffuser housing and/or direct the water flow in such a way that water exits through a nozzle of the pump jet as much as possible without internal turbulence or in such a way that through individual nozzles a desired quantity of water exits per unit of time, particularly the same amount of water per unit of time and/or to the extent possible without internal turbulence, to achieve an optimal thrust effect of the pump jet.
  • An additional preferred design in this connection consists in that the deflection devices contain an area with constant cross-sectional profile of the inner space of the diffuser housing, and/or in that the deflection devices contain an area with reduced cross-sectional profile of the inner space of the diffuser housing, and/or in that the deflection devices contain an area with enlarged cross-sectional profile of the inner space of the diffuser housing.
  • the deflection devices can alternatively or additionally contain at least one guide vane in the inner space of the diffuser.
  • FIG. 1 shows, in a schematic cross-sectional view, a first embodiment of a ship propulsion system with a pump jet
  • FIG. 2 shows a schematic perspective view of the ship propulsion system with a pump jet of the first embodiment example
  • FIG. 3 shows a schematic view of the ship propulsion system with a pump jet of the first embodiment example from below, that is, in the case of a pump jet attached to the hull of a ship, in the viewing direction towards the hull,
  • FIG. 4 shows a schematic view of the ship propulsion system with a pump jet of the first embodiment example from the inside towards the outside, that is, in the case of a pump jet attached to the hull of a ship, in the viewing direction away from the hull,
  • FIG. 5 shows, in a schematic view, a second embodiment example of a ship propulsion system with a pump jet
  • FIG. 6 shows, in a schematic view, a third embodiment example of a ship propulsion system with a pump jet.
  • FIG. 1 is a schematic view of a ship propulsion system S with a pump jet P in a longitudinal cross section.
  • the pump jet P contains a magnet motor M which is integrated in the flow housing or pump housing G, as drive motor with a stator 1 and a rotor 2 .
  • the rotor 2 is developed as an impeller outer ring I, and the stator 1 is integrated in a diffuser inner ring D of the pump housing G, which contains a diffuser housing 3 or is designed overall as such.
  • the pump jet P also comprises a control motor 4 , a control drive 5 , with, for example, a spur wheel R, as well as a receipt transmitter 6 and a well plate 7 .
  • FIG. 2 shows the ship propulsion system S with the pump jet P of the first embodiment examples in a schematic perspective view.
  • FIG. 3 shows the ship propulsion drive S with a pump jet P of the first embodiment example in a schematic view from below, that is, in the case of a pump jet attached to the hull of a ship, in the viewing direction towards the hull.
  • FIG. 4 shows the ship propulsion system S with the pump jet P of the first embodiment example in a schematic view from the inside towards the outside, that is, in the case of a pump jet attached to the hull of a ship, in the viewing direction away from the hull.
  • the ship propulsion system S is one that can be controlled all around, and whose pump jet P is mounted so it can be rotated by 360°.
  • the drive of the pump jet P occurs via a magnet motor M integrated in the pump housing G
  • HTSC motor not shown separately
  • the pump housing G which contains the diffuser housing 3 or is designed overall as such, can be rotated in bearings 8 with respect to the well plate 7 about a control axis A precisely preferably by 360°, so that the nozzles 9 can be controlled in a desired direction, of which, in the cross-sectional view in FIG. 1 , only one middle nozzle 9 b of three nozzles 9 a, 9 b and 9 c (see FIGS. 2 , 3 and 4 ) can be seen.
  • the diffuser housing 3 or the pump housing G is thus simultaneously also a deflection housing.
  • the shaping, in the first embodiment example shown in FIG. 1 is bead like around the drive motor with the stator 1 in the diffuser inner ring D of the pump housing G, and the runner or rotor 2 as impeller outer ring I.
  • the inner space 11 of the diffuser or deflection housing 3 with the specific shaping thus represents deflection devices 12 .
  • a guide vane 13 is provided as a component of the deflection devices 12 .
  • several and/or differently positioned and designed guide vanes can be provided.
  • the guide vanes serve the function of applying “turbulence removal” to and orienting the water flow with the deflection devices 12 , water which enters or is drawn in through the inner space 11 of the diffuser or deflection housing 3 , and which is made turbulent by the rapidly turning rotor 2 , in such a way that, through the individual nozzles 9 a, 9 b and 9 c, in each case, for example, the same quantity or in general a desired quantity of water per unit of time exits to the extent possible without internal turbulence, to achieve an optimal thrust effect of the pump jet P.
  • the rotor 2 is provided with a rotational axis B which is offset with respect to the control axis A of the pump jet P; specifically, the rotational axis B is offset towards the rear, in reference to the drawing plane in which the control axis A is located; that is, farther away from the viewer.
  • Such a type of offset is, however, clearly visible and understandable when looking at the second embodiment example according to FIG. 5 .
  • FIG. 5 shows a schematic cross-sectional view, analogous to the representation of FIG. 1 , of a second embodiment of a ship propulsion system S with a pump jet P.
  • the rotor 2 is provided with a rotational axis B that is offset with respect to the control axis A of the pump jet P.
  • the control axis A of the pump jet P, and the rotational axis b [sic] of the impeller or rotor 2 are, however, oriented mutually parallel.
  • the deflection devices 12 to the extent that they are formed by the shaping of the inner space 11 of the diffuser or deflection housing 3 or of the pump housing G, in the present second embodiment example according to FIG. 5 , are no longer of identical shape around the rotor 2 , in comparison to the embodiment of the first embodiment example according to FIG. 1 .
  • the deflection devices 12 have an area 12 a with smaller cross-sectional profile and an area 12 b with larger cross-sectional profile; on the other hand, the cross-sectional profile in the entire area 12 c in the first embodiment example according to FIG. 1 is constant.
  • a cross section which becomes larger towards the nozzles 9 in accordance with the area 12 b —with reference to the cross section in the area 12 a —of the second embodiment example according to FIG. 5 has, for example, a diffusion or diffuser effect.
  • FIG. 6 in a schematic cross-sectional representation—analogous to the representation of FIGS. 1 and 5 —a third embodiment example of a ship propulsion system S with a pump jet P is shown.
  • a third embodiment example of a ship propulsion system S with a pump jet P is shown.
  • the rotor 2 presents a rotational axis B which is inclined with respect to the control A of the pump jet P.
  • the control axis A of the pump jet P and the rotational axis B of rotor 2 intersect, however, at a point Z.
  • the deflection devices 12 to the extent that they are formed by the shaping of the inner space 11 of the diffuser or deflection housing 3 or of the pump housing G, in comparison to the design in the first embodiment example according to FIG. 1 , no longer present the same shape around the rotor 2 , due to its inclined position.
  • the deflection devices 12 again, as in the second example according to FIG. 5 , have an area 12 a with smaller cross-sectional profile and an area 12 b with a larger cross-sectional profile; in contrast, as already explained above, the cross-sectional profile is constant in the entire area 12 c in the first embodiment example according to FIG. 1 .
  • a cross section which becomes larger towards the nozzles 9 in accordance with the area 12 b —with reference to the cross section in the area 12 a —of the second embodiment example according to FIG. 6 has, for example, a diffusion or diffuser effect.
  • the areas 12 a and 12 b are, however, in terms of cross section not constant even in a peripheral section of the bead or ring shaped inner space 11 of the diffuser or deflection housing 3 or of the pump housing G, as is the case in the second embodiment example according to FIG. 5 .
  • the aspect that the rotational axis B of the impeller I or of the rotor 2 , and the control axis A of the pump jet P are not in alignment, or in other words are not superposed or overlapping, can also be considered to be an independent invention, which is thus in itself worthy of invention protection, independently of the design of the ship propulsion system S with a pump jet P, which contains a pump housing G and a drive motor, where the drive motor is a magnet motor M or high-temperature superconducting motor integrated in the pump housing G.
  • the nonaligned arrangement of the rotational axis B of the impeller I or rotor 2 , and of the control axis A of the pump jet P is here the generally valid formulation, which covers the embodiment examples according to FIGS.
  • the rotor 2 is provided with a rotational axis B which is offset with respect to the control axis A of the pump jet P, or, in the third embodiment example, the rotor 2 presents a rotational axis B, which is inclined with respect to the control axis A of the pump jet P, where the control axis A of the pump jet P and the rotational axis B of the rotor 2 intersect particularly, but not necessarily, at a point Z.
  • an electric motor E is indicated only with broken lines in FIGS. 5 and 6 in connection with the second and third embodiment examples for clarification. If such an electric motor E is provided, it replaces the magnet motor M or the HTSC motor, which, in the first embodiment example according to FIG. 1 , is provided as the only variant for the drive motor, and which, precisely in the second and third embodiment examples, can be provided in each case as the only drive motor.
  • a drive motor in the form of a magnet motor M or HTSC motor integrated in the pump housing G on the one hand, and of an electric motor E placed on the pump housing G or partially integrated therein are alternatives, if the inventive aspect of the nonaligned axes, namely the rotational axis B of the impeller or rotor 2 and the control axis A of the pump jet P, is considered separately.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
US13/132,759 2008-12-05 2009-11-12 Ship propulsion system having a pump jet Abandoned US20110305586A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202008016162 2008-12-05
DE202008016162.2 2008-12-05
PCT/DE2009/001621 WO2010063254A2 (fr) 2008-12-05 2009-11-12 Entraînement marin comportant un gicleur de pompe

Publications (1)

Publication Number Publication Date
US20110305586A1 true US20110305586A1 (en) 2011-12-15

Family

ID=42103859

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/132,759 Abandoned US20110305586A1 (en) 2008-12-05 2009-11-12 Ship propulsion system having a pump jet

Country Status (7)

Country Link
US (1) US20110305586A1 (fr)
EP (1) EP2370314A2 (fr)
JP (1) JP2012510914A (fr)
KR (1) KR20110097910A (fr)
CN (1) CN102369136A (fr)
CA (1) CA2744917A1 (fr)
WO (1) WO2010063254A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2005079C2 (nl) * 2010-07-14 2012-01-17 Veth Propulsion B V Stuurinrichting.
DK2904276T3 (da) * 2012-10-01 2018-01-29 Iron Pump As Remdreven aksial strømningspumpe med remtræk mellem to lejer
CN105775093B (zh) * 2016-03-25 2017-08-18 中国石油大学(华东) 小型潜水器的上浮及转向一体化装置
CN107651150A (zh) * 2017-08-31 2018-02-02 哈尔滨工程大学 一种全回转推进装置
CN108082430A (zh) * 2017-12-18 2018-05-29 熊迎芬 船舶动力装置
KR102684473B1 (ko) * 2022-03-10 2024-07-12 (주)제트웨이크 임펠러 내장형 모터
DE102023002023B3 (de) 2023-04-22 2024-09-05 Schottel Gmbh Antrieb eines Wasserfahrzeuges

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838821A (en) * 1986-03-18 1989-06-13 Schottel-Werft Josef Becker Gmbh & Co. Kg Drive mechanism particularly for flat-bottomed watercrafts
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller
US6500035B2 (en) * 1999-10-01 2002-12-31 Hrp Nederland B.V. Waterjet propulsion unit
JP2007245948A (ja) * 2006-03-16 2007-09-27 Ihi Corp ウォータージェット推進装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8004498A (nl) * 1980-08-07 1982-03-01 Antonius Hendrikus Clasina Bro Besturingsinrichting voor schepen.
EP0452538B1 (fr) * 1990-02-06 1994-12-21 Reinhard Gabriel Propulseur à réaction pour bateaux et avions ainsi que pompes
DE4305267A1 (de) 1993-02-20 1994-08-25 Schottel Werft Wasserstrahlantrieb
JPH10257752A (ja) * 1997-03-11 1998-09-25 Railway Technical Res Inst 超電導プロペラ回転駆動装置、及び超電導発電装置
JP3062191B1 (ja) * 1999-08-02 2000-07-10 川崎重工業株式会社 立型ウオ―タジェット推進機の吐出口構造
NL1020119C1 (nl) * 2002-03-06 2003-09-10 Veth Motoren B V Waterstraal-aandrijfinrichting.
KR101614553B1 (ko) * 2007-12-05 2016-04-21 숏텔 게엠베하 펌프 제트를 가진 선박 추진 시스템

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838821A (en) * 1986-03-18 1989-06-13 Schottel-Werft Josef Becker Gmbh & Co. Kg Drive mechanism particularly for flat-bottomed watercrafts
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller
US6500035B2 (en) * 1999-10-01 2002-12-31 Hrp Nederland B.V. Waterjet propulsion unit
JP2007245948A (ja) * 2006-03-16 2007-09-27 Ihi Corp ウォータージェット推進装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Cronk, R. (2002) Optimal Electric Ship Propulsion Solution, Maritime Reporter. Retrieved 4/25/2012 from the following website: http://www.greatwriting.com/ABOUT_DOWNLOADS/American_Super.pdf *

Also Published As

Publication number Publication date
EP2370314A2 (fr) 2011-10-05
JP2012510914A (ja) 2012-05-17
CA2744917A1 (fr) 2010-06-10
WO2010063254A2 (fr) 2010-06-10
WO2010063254A3 (fr) 2011-12-29
CN102369136A (zh) 2012-03-07
KR20110097910A (ko) 2011-08-31

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AS Assignment

Owner name: SCHOTTEL GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KRAUTKRAMER, GERD;REEL/FRAME:026769/0484

Effective date: 20110620

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION