US20070253821A1 - Jet Propulsion Engine - Google Patents

Jet Propulsion Engine Download PDF

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Publication number
US20070253821A1
US20070253821A1 US10/579,273 US57927304A US2007253821A1 US 20070253821 A1 US20070253821 A1 US 20070253821A1 US 57927304 A US57927304 A US 57927304A US 2007253821 A1 US2007253821 A1 US 2007253821A1
Authority
US
United States
Prior art keywords
rotor
bearing
housing
jet propulsion
propulsion engine
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
US10/579,273
Other languages
English (en)
Inventor
Reinhard Gabriel
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.)
Voith Turbo Advanced Propeller Technologies GmbH and Co KG
Original Assignee
Air Fertigung Technologie GmbH and Co KG
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 Air Fertigung Technologie GmbH and Co KG filed Critical Air Fertigung Technologie GmbH and Co KG
Assigned to AIR FERTIGUNG - TECHNOLOGIE GMBH & CO. KG reassignment AIR FERTIGUNG - TECHNOLOGIE GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GABRIEL, REINHARD
Publication of US20070253821A1 publication Critical patent/US20070253821A1/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
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • 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
    • 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
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • B63H2025/425—Propulsive elements, other than jets, substantially used for steering or dynamic anchoring only, with means for retracting, or otherwise moving to a rest position outside the water flow around the hull

Definitions

  • the invention relates to a jet propulsion engine, especially for watercraft, comprising a rotor on the inside of which blades are disposed, and a housing in which the rotor is rotationally received.
  • Such a jet propulsion engine is known from DE 39 12 910 C2 for example, with the rotor being configured here in the form of a pipe with an inside screw.
  • the drive of the engine can be realized mechanically or in the form of an electric ring motor, in which the rotor thus represents a part of the electromotor.
  • Roller or rolling contact bearings must be sealed against penetration of water in the use of the jet propulsion engine for water vehicles.
  • the invention is therefore based on the object of providing a bearing for the jet propulsion engine as mentioned above which ensures a long service life.
  • the bearing should also enable the realization of large rotor diameters for powerful jet propulsion engines.
  • the bearing between rotor and housing comprises carbide that is resistant to sea-water.
  • Silicon carbide or aluminum carbide is preferably used, because these two materials, and silicon carbide in particular, have a high resistance against sea-water and also offer the required strength.
  • the bearing is advantageously configured as a slide bearing.
  • the bearing in the rotor and/or the bearing in the housing is formed from several bearing segments.
  • the bearing segments In the configuration of the bearing by several bearing segments it is advantageous to arrange the bearing segments in a spaced manner at least on the rotor, so that as a result of centrifugal force the water is pressed outwardly between the bearing segments and thus a pumping effect is achieved.
  • the housing encloses the rotor in such a way that a hollow space is obtained between the outside of the rotor and the inside of the housing.
  • the fixing of the bearing segments on the rotor or housing is advantageously made by positive locking, e.g. with the help of a trapeze geometry and subsequent gluing.
  • FIG. 1 shows a side view of the jet propulsion engine in accordance with the invention
  • FIG. 2 substantially shows the sectional view AA of FIG. 1 , with the fixing device and the blades not being shown;
  • FIG. 3 shows an enlarged illustration of the lower part of FIG. 2 ;
  • FIG. 4 shows an enlarged perspective partial view of the bearing in the housing
  • FIGS. 5 a and 5 b show front and side view of a bearing segment for the rotor
  • FIG. 6 shows a partial circle of the adjacently arranged bearing segments on the rotor.
  • FIG. 1 shows a side view of a jet propulsion engine for water vehicles which is based on the drive concept of an electric ring motor.
  • the sectional view also shows a part of the boat hull 19 with an opening 20 , through which the jet propulsion engine can be extended and retracted.
  • a shaft 21 is formed for this purpose in hull 19 , in which the jet propulsion engine is received in the retracted state.
  • the jet propulsion engine comprises a rotor 1 whose inner side comprises inwardly facing blades 2 .
  • the blades 2 are fixed to rotor 1 in a clamping manner and can each be exchanged individually.
  • Rotor 1 is received in a housing 3 which on its part is connected to a mounting 4 .
  • the mounting 4 comprises a flange 5 towards the housing 3 and is connected via flange 5 with the housing 3 .
  • the mounting 4 is arranged as a hydraulic cylinder which is fixed at its upper end by way of a screwed joint 6 to a cover 7 of the shaft 21 .
  • the boat contains a generator (not shown) or any other power source which is usually a diesel generator which supplies the jet propulsion engine via line 8 with the required power.
  • a generator not shown
  • any other power source which is usually a diesel generator which supplies the jet propulsion engine via line 8 with the required power.
  • the hydraulic cylinder 4 is received in a sleeve 22 with groove 23 for extending and retracting and for control of the jet propulsion engine, in which groove engages a pin 24 which on its part is fixedly connected with the cover 7 .
  • Pin 24 and groove 23 form a connecting link guide, so that in the straight part of the groove the jet propulsion engine can be extended and the jet propulsion engine is rotated in the spiral part of the groove.
  • Extension and retraction as well as control can thus occur via the hydraulic cylinder 4 .
  • it merely comprises an inlet 25 and an outlet 26 on the upper side.
  • a sealing plate 27 with a sealing bead 28 is arranged on the lower side of the sleeve 22 in order to keep the water from the upper part of the shaft.
  • Opening 20 can be sealed by means of a lamellar shutter 29 which can be closed by means of a drive 30 which is also in the form of a hydraulic or pneumatic cylinder for example.
  • the jet propulsion engine is shown in the extended state with the broken line.
  • the same can be used as a main drive and also as an additional maneuvering aid because it can easily be swiveled about 360° and can be configured to extend and retract easily as a result of its low weight.
  • FIG. 2 substantially shows the sectional view AA of FIG. 1 , merely showing the interior between rotor 1 and the housing 3 and an illustration of the blades 2 being omitted.
  • FIG. 3 shows the lower part of FIG. 2 on an enlarged scale.
  • Rotor 1 substantially consists of two rotor parts 1 a and 1 b which are jointly screwed together and centrically receive an electromotor rotor ring 9 on its outer side between themselves in a clamping manner.
  • the holding flanges 10 a and 10 b for fixing the blade segments are each provided on the sides of the rotor.
  • Rotor 1 is enclosed in a sleeve-like manner by housing 3 , with the housing 3 also being formed by two housing elements 3 a and 3 b which are screwed together like the rotor parts 1 a and 1 b and receive between themselves a stator ring 11 for the electromotor in a clamping manner.
  • Rotor 1 is held by means of two slide bearings 12 a and 12 b relative to the housing 3 in such a way that a minimal air gap 13 is obtained between the electromotor rotor ring 9 and stator ring 11 .
  • the bearings 12 a and 12 b are configured as carbide bearings in the form of silicon or aluminum carbide.
  • Carbide is sea-water resistant on the one hand and offers very favorable sliding properties in connection with water on the other hand.
  • a slide bearing 12 a or 12 b consists of a rotor bearing 14 which is substantially rectangular on its free outer sides and two substantially radially and axially arranged housing bearings 15 which are arranged on the outsides of the rotor bearing 14 .
  • the rotor bearing 14 and the housing bearing 15 can be produced in an integral manner.
  • FIG. 4 schematically shows a perspective view of the multi-part configuration of the housing bearing 15 .
  • the housing bearings 15 are provided with a configuration which is substantially trapezoid in its cross section, so that they can be inserted into trapezoid grooves in the housing.
  • the housing bearings are thus fixed in a positive-locking manner in the housing 3 . They can also be glued together in addition.
  • the bearing segments 15 can be spaced from one another by a certain space d as shown in FIG. 4 or grooves can be formed on the bearing segments 15 .
  • the bearing segments are thus continuously subjected to a flow, leading to an additional cooling of the bearing and the electromotor.
  • FIG. 5 a shows a cross section of the rotor bearing 14 which comprises a trapezoid recess 16 on its inner side, so that the bearing can be fastened to the trapezoid bead on rotor 1 .
  • the bearing segments of the rotor bearing 14 are additionally advantageously glued in the trapezoid recess 16 and thereafter ground over.
  • FIG. 5 b also shows the side view of a bearing segment 14 . It is shown that the sides of the bearing element 14 are each radially rounded off.
  • FIG. 6 shows a partial circle of the bearing elements 14 . It is shown that a tapering and then widening gap S is obtained as a result of the rounded parts on the side of the bearing elements 14 .
  • a pumping effect is achieved by this configuration of the rotor bearing elements 14 .
  • the liquid which is located in the gaps S is pressed during rotation by centrifugal force to the outside and thus reaches hollow space 17 (see FIG. 3 ) which is obtained between the rotor 1 and the housing 3 .
  • the water pumped into the hollow space 17 can flow off again between the housing bearing segments 15 .
  • the bearings By producing the bearings exclusively from carbide, especially silicon carbide, it is possible to provide the bearing in a non-sealed way as a water bearing, thus preventing complex sealing and achieving excellent cooling at the same time by the water.
  • the carbide bearing can also be used as a air bearing for an air drive.
  • both the rotor as well as the housing including the bearing can be pre-mounted and ground.
  • the housing merely needs to be detached again for mounting and can be screwed together again after the insertion of the rotor.
US10/579,273 2003-11-14 2004-11-15 Jet Propulsion Engine Abandoned US20070253821A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10353566.7 2003-11-14
DE10353566A DE10353566A1 (de) 2003-11-14 2003-11-14 Strahlantrieb
PCT/DE2004/002519 WO2005049420A1 (fr) 2003-11-14 2004-11-15 Propulsion par réaction

Publications (1)

Publication Number Publication Date
US20070253821A1 true US20070253821A1 (en) 2007-11-01

Family

ID=34609033

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/579,273 Abandoned US20070253821A1 (en) 2003-11-14 2004-11-15 Jet Propulsion Engine

Country Status (7)

Country Link
US (1) US20070253821A1 (fr)
EP (1) EP1687201B1 (fr)
KR (1) KR20060123154A (fr)
AT (1) ATE359209T1 (fr)
DE (2) DE10353566A1 (fr)
DK (1) DK1687201T3 (fr)
WO (1) WO2005049420A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003946C2 (nl) * 2009-12-11 2011-06-15 Marifin Beheer B V Lagerconstructie, alsmede schroef voorzien van een dergelijke lagerconstructie.
EP2403749A1 (fr) * 2009-03-05 2012-01-11 Beacon Finland Ltd OY Espace de service pour dispositif de propulsion rétractable ou correspondant
CN102336261A (zh) * 2011-09-07 2012-02-01 王仁夫 无轴螺旋桨推进器
WO2012108064A1 (fr) * 2011-02-11 2012-08-16 MOTOYAMA Kenniti Dispositif de rotation de pales dans un tube au moyen d'un électroaimant
CN103085959A (zh) * 2011-11-08 2013-05-08 雅马哈发动机株式会社 船舶推进装置
US8845370B2 (en) 2009-09-14 2014-09-30 Itrec B.V. Vessel with a retractable thruster assembly

Families Citing this family (14)

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GB0424697D0 (en) * 2004-11-09 2004-12-08 Woodford Peter Propeller design
DE102007002519A1 (de) 2007-01-17 2008-07-31 Air Fertigung-Technologie Gmbh & Co.Kg Strahlantireb
GB0702791D0 (en) * 2007-02-14 2007-03-28 Rolls Royce Plc Linear actuator
DE102008024540A1 (de) 2008-05-21 2009-12-03 Siemens Aktiengesellschaft Azimut-Propellerantriebseinrichtung mit niedriger Einbauhöhe für eine schwimmende Einrichtung
EP2279113B1 (fr) 2008-05-27 2017-09-06 Siemens Aktiengesellschaft Turbomachine pourvue de deux rotors
DE102009019539B3 (de) * 2009-04-30 2010-11-25 Howaldtswerke-Deutsche Werft Gmbh Unterseeboot
DE102009021548A1 (de) 2009-05-15 2010-11-25 Voith Patent Gmbh Strahlantrieb mit wenigstens einer Antriebseinheit
GB0910752D0 (en) 2009-06-23 2009-08-05 Rolls Royce Plc An annulus filler for a gas turbine engine
JP5432606B2 (ja) * 2009-06-25 2014-03-05 川崎重工業株式会社 推力発生装置
GB0914060D0 (en) 2009-08-12 2009-09-16 Rolls Royce Plc A rotor assembly for a gas turbine
GB2478918B8 (en) 2010-03-23 2013-06-19 Rolls Royce Plc Interstage seal
DE102010054124B4 (de) * 2010-12-10 2012-07-26 Howaldtswerke-Deutsche Werft Gmbh Unterseeboot
ITUB20152797A1 (it) * 2015-08-03 2017-02-03 Icarus Int Srl Un sistema di ricovero per macchine a fluido elettriche
DE102016204304A1 (de) * 2016-03-16 2017-09-21 Voith Patent Gmbh Strahlantrieb insbesondere für ein Wasserfahrzeug und Verfahren zum Nachrüsten eines Strahlantriebs

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361107A (en) * 1965-10-11 1968-01-02 Exxon Research Engineering Co Peripherally driven ship propeller
US4176283A (en) * 1977-11-23 1979-11-27 Mclaren Richard H Water powered generator
US4242979A (en) * 1977-11-09 1981-01-06 Kiyoshi Shima Screw propeller with no shaft boss and ship thruster using such screw propeller
US5181868A (en) * 1990-02-06 1993-01-26 Reinhard Gabriel Jet propulsion device for watercraft, aircraft, and circulating pumps
US5372430A (en) * 1988-04-15 1994-12-13 The B. F. Goodrich Company Bearing assembly
US20010029133A1 (en) * 2000-02-15 2001-10-11 Breems Martinus Van Electric propulsion systems
US6332714B1 (en) * 1998-06-29 2001-12-25 Nsk Ltd. Induction-hardened rolling bearing device
US6402462B1 (en) * 1997-11-17 2002-06-11 Allweiler Ag Centrifugal pump with a floating ring seal
US6439936B1 (en) * 2000-02-29 2002-08-27 Global Marine, Inc. High retraction marine thruster
US6565677B1 (en) * 1999-05-20 2003-05-20 Nsk Ltd. Rolling bearing
US20030123770A1 (en) * 2001-12-27 2003-07-03 Nsk Ltd. Rolling bearing

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US3455619A (en) * 1966-10-11 1969-07-15 Byron Jackson Inc Marine bearing stave
DE3718954A1 (de) * 1987-06-05 1988-12-22 Uwe Gartmann Propeller-anordnung, insbesondere fuer schiffsantriebe
DE3912910A1 (de) * 1989-04-20 1990-10-25 Gabriel Reinhard Strahlantrieb fuer wasser- und luftfahrzeuge sowie umwaelzpumpen
DE29503198U1 (de) * 1995-02-25 1995-04-13 Wilo Gmbh Gleitlager für Spaltrohrpumpen
JP4273609B2 (ja) * 2000-02-10 2009-06-03 日本精工株式会社 転がり軸受
DE10023122A1 (de) * 2000-05-11 2001-11-15 Bayerische Motoren Werke Ag Verfahren zur Herstellung einer verschleiß- und reibarmen Beschichtung auf Leichtmetallbauteilen
WO2001092101A1 (fr) * 2000-06-01 2001-12-06 The Penn State Research Foundation Propulseur de tunnel et ensemble canalisation a rotor lubrifie a l'eau
DE10136638C2 (de) * 2001-07-26 2003-11-20 Man B&W Diesel A/S, Copenhagen Sv Hubkolbenmaschine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361107A (en) * 1965-10-11 1968-01-02 Exxon Research Engineering Co Peripherally driven ship propeller
US4242979A (en) * 1977-11-09 1981-01-06 Kiyoshi Shima Screw propeller with no shaft boss and ship thruster using such screw propeller
US4176283A (en) * 1977-11-23 1979-11-27 Mclaren Richard H Water powered generator
US5372430A (en) * 1988-04-15 1994-12-13 The B. F. Goodrich Company Bearing assembly
US5181868A (en) * 1990-02-06 1993-01-26 Reinhard Gabriel Jet propulsion device for watercraft, aircraft, and circulating pumps
US6402462B1 (en) * 1997-11-17 2002-06-11 Allweiler Ag Centrifugal pump with a floating ring seal
US6332714B1 (en) * 1998-06-29 2001-12-25 Nsk Ltd. Induction-hardened rolling bearing device
US6565677B1 (en) * 1999-05-20 2003-05-20 Nsk Ltd. Rolling bearing
US20010029133A1 (en) * 2000-02-15 2001-10-11 Breems Martinus Van Electric propulsion systems
US6439936B1 (en) * 2000-02-29 2002-08-27 Global Marine, Inc. High retraction marine thruster
US20030123770A1 (en) * 2001-12-27 2003-07-03 Nsk Ltd. Rolling bearing

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2403749A1 (fr) * 2009-03-05 2012-01-11 Beacon Finland Ltd OY Espace de service pour dispositif de propulsion rétractable ou correspondant
US8715021B2 (en) 2009-03-05 2014-05-06 Beacon Finland Ltd Oy Service space for a retractable propulsion device
EP2403749A4 (fr) * 2009-03-05 2012-07-25 Beacon Finland Ltd Oy Espace de service pour dispositif de propulsion rétractable ou correspondant
US8845370B2 (en) 2009-09-14 2014-09-30 Itrec B.V. Vessel with a retractable thruster assembly
US20110142693A1 (en) * 2009-12-11 2011-06-16 Marifin Beheer B.V. Bearing structure and screw provided with a bearing structure of this type
NL2003946C2 (nl) * 2009-12-11 2011-06-15 Marifin Beheer B V Lagerconstructie, alsmede schroef voorzien van een dergelijke lagerconstructie.
CN102092466A (zh) * 2009-12-11 2011-06-15 马里芬贝黑尔私人有限公司 支承结构和设有这类支承结构的螺旋桨
EP2332824A1 (fr) * 2009-12-11 2011-06-15 Marifin Beheer B.V. Structure de palier, et hélice équipé avec cette structure de palier
WO2012108064A1 (fr) * 2011-02-11 2012-08-16 MOTOYAMA Kenniti Dispositif de rotation de pales dans un tube au moyen d'un électroaimant
CN102336261A (zh) * 2011-09-07 2012-02-01 王仁夫 无轴螺旋桨推进器
CN103085959A (zh) * 2011-11-08 2013-05-08 雅马哈发动机株式会社 船舶推进装置
EP2591993A1 (fr) * 2011-11-08 2013-05-15 Yamaha Hatsudoki Kabushiki Kaisha Dispositif de propulsion de navire
US8956195B2 (en) 2011-11-08 2015-02-17 Yamaha Hatsudoki Kabushiki Kaisha Marine vessel propulsion device

Also Published As

Publication number Publication date
DK1687201T3 (da) 2007-08-27
EP1687201A1 (fr) 2006-08-09
KR20060123154A (ko) 2006-12-01
EP1687201B1 (fr) 2007-04-11
DE502004003499D1 (de) 2007-05-24
DE10353566A1 (de) 2005-06-23
WO2005049420A1 (fr) 2005-06-02
ATE359209T1 (de) 2007-05-15

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Legal Events

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AS Assignment

Owner name: AIR FERTIGUNG - TECHNOLOGIE GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GABRIEL, REINHARD;REEL/FRAME:019029/0697

Effective date: 20060817

STCB Information on status: application discontinuation

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