US3807346A - Waterjet steering and reversing mechanism - Google Patents

Waterjet steering and reversing mechanism Download PDF

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Publication number
US3807346A
US3807346A US00378562A US37356273A US3807346A US 3807346 A US3807346 A US 3807346A US 00378562 A US00378562 A US 00378562A US 37356273 A US37356273 A US 37356273A US 3807346 A US3807346 A US 3807346A
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US
United States
Prior art keywords
waterjet
shafts
marine vessel
deflector
rotated
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.)
Expired - Lifetime
Application number
US00378562A
Other languages
English (en)
Inventor
W Delfeld
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.)
Boeing Co
Original Assignee
Boeing Co
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 Boeing Co filed Critical Boeing Co
Priority to US00378562A priority Critical patent/US3807346A/en
Priority to GB5150173A priority patent/GB1396676A/en
Priority to SE7315098A priority patent/SE395132B/xx
Priority to NL7315709A priority patent/NL7315709A/xx
Priority to DE19732359322 priority patent/DE2359322C3/de
Priority to DK643873*A priority patent/DK643873A/da
Priority to IT53982/73A priority patent/IT997691B/it
Priority to JP13401073A priority patent/JPS5341870B2/ja
Priority to BE1005539A priority patent/BE807950A/xx
Priority to ES421008A priority patent/ES421008A1/es
Priority to FR7342869A priority patent/FR2234186B1/fr
Priority to ZA739690A priority patent/ZA739690B/xx
Priority to CA189,252A priority patent/CA972633A/en
Priority to AU64163/74A priority patent/AU453163B2/en
Priority to BR1110/75A priority patent/BR7401110A/pt
Priority to NO740548A priority patent/NO136530C/no
Priority to CH237474A priority patent/CH574839A5/xx
Application granted granted Critical
Publication of US3807346A publication Critical patent/US3807346A/en
Priority to HK125/76*UA priority patent/HK12576A/xx
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
    • 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
    • B63H11/107—Direction control of propulsive fluid
    • B63H11/11—Direction control of propulsive fluid with bucket or clamshell-type reversing means

Definitions

  • ABSCT Directional control apparatus for waterjet powered marine vessels comprising a machanism which will steer and reverse the waterjet exit stream with the force applying actuators located inside the ships hull.
  • the mechanism consists of a steering tube pivotally mounted at the exit of the waterjet stream about a vertical axis on a support structure attached to the ships hull.
  • the tube is turned by a vertical shaft attached to the upper end of the tube which passes through the hull and is terminated by a perpendicularly attached arm.
  • the latter is to be operated by an actuator con tained within the hull.
  • the thrust reversing mechanism utilizes an actuator system similar to the steering mode which consists of a shaft concentric with the steering tube shaft and similarly operated by a perpendicularly attached arm and actuator contained within the hull.
  • the reverser comprises a deflector having a forwardly and downwardly directed construction which is pivoted about the same vertical axis as the tube so as to provide a forwardjno blockage), neutral (semi-blockage) and reverse (full blockage) mode of operation at any steering angle.
  • the present invention relates to marine vessels and more particularly to directional control of waterjet propelled marine vessels.
  • the present invention is directed to marine vessels of the jet-propelled variety wherein means are utilized to expel a jet of water rearwardly of the vessel.
  • this invention it is contemplated to deflect this emerging jet of water so as to change the direction of travel of the vessel both as toport and starboard as well as forward and reverse, individually and in combination.
  • Marine vessels employing waterjet propulsion means operate on the principle of drawing ambient water through an inlet located in the vessels hull and pumping it through a duct with an exit directing the resultant waterjet aft thus propelling the vessel forward.
  • One of the major advantages of such a propulsion system is its ability to operate a vessel where there is only sufficient water level to support the vessels draught. It is desirable, therefore, to minimize any projections on the underside of the vessel.
  • the propulsion system tends to ingest sand and sedementary material when operating at near minimum depths.
  • such propulsion systems operate in fresh water and salt water environments alike.
  • the basic propulsion system does not provide a capability for operating the vessel in a reverse direction which is disadvantageous when maneuvering in confined areas and in other circumstances.
  • a primary objective of the present invention is to provide directional control for waterjet propelled ma rine vessels which can be located above the waterline so as to reduce drag and minimize underwater projections.
  • Another objective of the present invention is to provide directional control for waterjet propelled marine vessels with a minimum of metal to metal contact within the operative mechanism and to associated vessel structures.
  • a further objective of the present invention is to provide directional control for waterjet propelled marine vessels which is simple in design and operation so as to reduce original cost of construction, reduce cost of maintenance, and minimize fouling while maximizing ease of operation in an environment of corrosive salt water, sand and sediment, and high water pressures.
  • Still another objective of the present invention is to provide directional control for waterjet propelled marine vessels in which the actuating mechanism can be placed in a protected environment, moving parts operating'in the water will be minimal, and amount of hull penetration for mounting and operation will be minimal.
  • Yet another objective of the present invention is to provide directional control for waterjet propelled marine vessels combining steering and forward/reverse in one unit which allows steering in reverse and a smooth transition from forward to reverse.
  • FIG. 1 is a side elevation of the invention as attached to the rear hull of a waterjet powered vessel and wherein the control mechanism is set to effect forward movement of the vessel.
  • FIG. 2 is a side elevation of the invention as attached to the rear hull of a waterjet powered vessel and wherein the control mechanism is set to effect rearward movement of the vessel.
  • FIG. 3 is a top view of the invention as attached to the rear hull of a waterjet powered vessel and wherein the control mechanism is set to effect forward movement of the vessel as depicted in FIG. 1 with no port or starboard deflection.
  • FIG. 4 is a top view of the invention as attached to the rear hull of a waterjet powered vessel and wherein the control mechanism is set to effect rearward movement of the vessel as depicted in FIG. 2 with no port or starboard deflection.
  • FIG. 5 is a simplified top view of the inventions deflectors operating in the forward direction.
  • FIG. 6 is a simplified top view of the inventions deflectors operating in a neutral position.
  • FIG. 7 is a simplified top view of the inventions deflectors operating in a reverse direction.
  • FIG. 8 is a top view of the invention as attached to the rear hull of a waterjet powered vessel and wherein the control mechanism is set to effect forward movement of the vessel while causing a change of direction in the port direction.
  • the ghost position of the mechanism as shown in the same figure will cause forward movement of the vessel while causing a change of direction in the starboard direction.
  • the present invention provides both a forwardreverse and a steering capability to a waterjet powered marine vessel.
  • a waterjet propulsion system draws ambient water through an inlet duct with a pumping means and discharges the water under pressure.
  • the resulting waterjet in the accompanying figures causes a propulsion force on the marine vessel in a direction opposite its final flow direction. If the waterjet 10 is deflected in any direction the resultant force vector on the marine vessel will be changed accordingly.
  • the present invention operates to cause such deflections of the emerging waterjet 10. By deflecting the waterjet 10 laterally only, as shown in FIG. 8, the marine vessel can be steered while traveling in the forward direction.
  • the marine vessel By deflecting the waterjet 10 down and forward only, as shown in FIG. 2, the marine vessel can travel in a straight backwards direction. By deflecting the waterjet 10 in combination both laterally and down-and-forward, the marine vessel can be steered while traveling in reverse.
  • the waterjet l0 emerges from the duct exit 12 in the vessels transom l4.
  • Reversing deflector l6 and steering deflector 18 are positioned and attached to the transom 14 by mounting means which hold the deflectors 16 and 18 such that they may be pivoted easily as will be described while being secure and steady in the force of the emerging waterjet 10.
  • the steering deflector 18 is carried by a steering shaft 22 which passes through bearing and sealing assembly 24 into the vessels interior or a protective enclosure 26 terminating in a steering arm 28.
  • the reversing deflector 16 is carried by a reversing shaft 30 which passes through bearing and sealing assembly 24 into the vessels interior or a protective enclosure 26 terminating in a reversing arm 32.
  • FIG. 3 and FIG. 4 provide a clearer view of the interconnection of the steering arm 28 and reversing arm 32.
  • Steering arm 28 is connected to a steering actuator assembly 34 which is attached to the hull or to the wall of the protective enclosure 36.
  • the steering actuator assembly 34 is energized in response to signals from the vessels steering control mechanism which is not shown.
  • energization of the steering actuator assembly 34 in response to a port turn control signal will result in actuator shaft 35 moving into restrained outer enclosure 37. This will cause the total length of the steering actuator assembly 34 to be shortened.
  • the shortening of the actuator assembly causes the steering arm 28 to pivot about the axis of the steering shaft 22.
  • the steering shaft 22 and steering deflector 18 being operably connected to the steering arm 28 are repositioned by the pivotal movement of the steering arm 28 to a new position as shown in FIG. 8.
  • the energization of the steering actuator assembly will cause the actuator shaft 35 to move out of the restrained outer enclosure 37, making the total length of the steering actuator assembly 34 longer.
  • the steering deflector 18 is so shaped and positioned that it can be moved from one extreme of its arc of movement to the other while still providing an unobstructed entrance for the waterjet 10.
  • the waterjet 10 passes through unobstructed.
  • the steering deflector 18 is rotated in either direction about its axis as shown in FIG. 8 and described above, it is so constructed and positioned that the waterjet 10 will strike the side of the deflector 18, thus imparting a turning force laterally on the transom 14 of the vessel.
  • the reversing arm 32 is connected to a reversing actuator assembly 38 which is operatively attached to the steering arm 28.
  • the reversing actuator assembly 38 When the reversing actuator assembly 38 is not energized, its length remains fixed. During these times the steering arm 28,-the reversing arm 32 and the reversing actuator assembly 38 form the three fixed length sides of a triangle. There cannot be a pivotal displacement of the reversing arm 32 with respect to the steering arm 28 unless the length of the reversing actuator assembly 38 is changed. Since the reversing deflector l6 and reversing shaft 30 are non-pivotally attached to the reversing arm 32, as shown in FIG.
  • the reversing deflector 16 When the vessel is moving in a forward position, the reversing deflector 16 is maintained in a position away from the emerging waterjet 10 as shown in FIG. 3 and FIG. 5. Energization of the reversing actuator assembly 38 in response to a full reverse control signal will result in actuator shaft 39 moving into outer enclosure 41. This will cause the total length of the reversing actuator assembly 38 to be shortened. Since the reversing actuator assembly 38 forms one side of a triangle as previously described, as it shortens, the angle opposite formed by the steering arm 28 and the reversing arm 32 must get smaller as well.
  • This pivotal displacement of the reversing arm 32 in relation to the steering arm 28 causes a direct corresponding pivotal displacement in the relationship between the steering deflector l8 and the reversing deflector 16.
  • the reversing deflector moves from its full forward position as shown in FIG. 3 and FIG. 5 to its full reverse position as shown in FIG. 4 and FIG. 7.
  • the reversing deflector will assume a plurality of positions relative to the steering deflector 18 and the emerging waterjet 10. At any of these intermediate positions as represented by FIG.
  • Bearing and sealant means 44 are disposed as indicated to encourage ease of component movement and discourage undesired water flow.
  • Direction control apparatus for a marine vessel employing a waterjet propulsion means wherein ambient water is drawn into an input duct and expelled as a waterjet under pressure by pump means comprising:
  • actuating means so interconnected with said shafts as to allow said shafts to be moved pivotally individually or in combination;
  • first deflector means carried by one of said two shafts and being in general a conduit whereby in one position the waterjet can pass unobstructed therethrough while when rotated in either direction about its axis said first deflector means will cause a deflection of the waterjet entering therein so as to provide steering control of the marine vessel;
  • second deflector means carried by the other of said two shafts and being disposed downstream of said first deflector means and being shaped in such manner that when rotated about its axis in one position the waterjet can pass unobstructed thereby while when rotated from said position about its axis said second deflector means can assume a plurality of positions in which a portion or all of the waterjet is smoothly deflected in a generally forward direction so as to provide a reverse thrusting force on the marine vessel.
  • Direction control apparatus for a marine vessel employing a waterjet propulsion means wherein ambient water is drawn into an input duct and expelled as a waterjet under pressure by pump means comprising:
  • actuating means so interconnected with said shafts as to allow said shafts to be moved pivotally individually or in combination;
  • first deflector means carried by one of said two shafts and being in general a conduit whereby in one position the waterjet can pass unobstructed therethrough while when rotated in either direction about its axis said first deflector means will cause a deflection of the waterjet entering therein so as to provide steering control of the marine vessel;
  • second deflector means carried by the other of said two shafts and being disposed downstream of said first deflector means and being curved in such manner that when rotated about its axis in one position said waterjet can pass unobstructed thereby while when rotated from said position about its axis said second deflector means can assume a plurality of positions in which a portion or all of the waterjet is smoothly deflected first to a downward and then to a generally forward direction so as to provide a reverse thrusting force on the marine vessel.
  • Direction control apparatus for a marine vessel employing a waterjet propulsion means wherein ambient water is drawn into an input duct and expelled as a waterjet under pressure by pump means comprising:
  • actuating means so interconnected with said shafts as to allow said shafts to be moved pivotally individually or in combination;
  • first deflector means carried by the inner of said two generally concentric shafts and being in general a conduit whereby in one position the waterjet can pass unobstructed therethrough while when rotated in either direction about its axis said first deflector means will cause deflection of the waterjet entering therein so as to provide steering control of the marine vessel;
  • second deflector means carried by the outer of said two generally concentric shafts and being disposed downstream of said first deflector means and being shaped in such manner that when rotated about its axis in one position the waterjet can pass unobstructed thereby while when rotated from said position about its axis said second deflector means can assume a plurality of positions in which a portion or all of the waterjet is smoothly deflected in a generally forward direction so as to provide a reverse thrusting force on the marine vessel.
  • Direction control apparatus for a marine vessel employing a waterjet propulsion means wherein ambient water is drawn into an input duct and expelled as a waterjet under pressure by pump means comprising:
  • actuating means so interconnected with said shafts as to allow said shafts to be moved pivotally individually or in combination;
  • first deflector means carried by the inner of said two generally concentric shafts and being in general a conduit whereby in one position the waterjet can pass unobstructed therethrough while when rotated in either direction about its axis said first deflector means will cause a deflection of the waterjet entering therein so as to provide steering control of the marine vessel;
  • second deflector means carried by the outer of said two generally concentric shafts and being disposed downstream of said first deflector means and being curved in such manner that when rotated about its axis in one position the waterjet can pass unobstructed thereby while when rotated from said position about its axis said second deflector means can assume a plurality of positions in which a portion or all of the waterjet is smoothly deflected first to a downward and then to a generally forward direction so as to provide a reverse thrusting force on the marine vessel.
  • Direction control apparatus for a marine vessel employing a waterjet propulsion means wherein ambient water is drawn into an input duct and expelled as a waterjet under pressure by pump means comprising:
  • second actuating means operatively connected to the second of said two shafts; said first actuating is smoothly deflected in a generally forward direction so as to provide a reverse thrusting force on the marine vessel.
  • second deflector means carried by the outer of said waterjet emenng fllerem so as to provide Steer two shafts and being disposed downstream of said mg control of the marme fi and first deflector means and being shaped in such second deflector means carried by said second man th t h t t d b t shaft and being disposed downstrean of said first er a w m a e a ou l S axis m one podeflector means and being shaped in such manner the waterjet can pas.s unopftructed h y that when rotated from said position about its axis l' when rotated from sald posmon about us l said second deflector means can assume a plurality Sald j f F mean?
  • Direction control apparatus for a marine vessel as claimed in claim 1 wherein said two substantially concentric shafts pass through the hull of the marine vessel, said actuating means being disposed within the hull of the marine vessel.
  • Direction control apparatus for a marine vessel as a. two substantially concentric shafts wherein the outer shaft is a conduit means containing the inner shaft;
  • first actuating means operatively connected to the inner of said two shafts
  • second actuating means operatively connected to the outer of said two shafts;'-'said first actuating claimed in claim 1 wherein said two substantially concentric shafts pass through the surface of a protective enclosure associated with the marine vessel, said actuating means being disposed within said protective enclosure.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Control Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Hydraulic Turbines (AREA)
  • Actuator (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
US00378562A 1973-06-25 1973-06-25 Waterjet steering and reversing mechanism Expired - Lifetime US3807346A (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
US00378562A US3807346A (en) 1973-06-25 1973-06-25 Waterjet steering and reversing mechanism
GB5150173A GB1396676A (en) 1973-06-25 1973-11-06 Marine vessel waterjet steering and reversing mechanism
SE7315098A SE395132B (sv) 1973-06-25 1973-11-07 Riktningsstyrapparat for marin farkost
NL7315709A NL7315709A (da) 1973-06-25 1973-11-15
DE19732359322 DE2359322C3 (de) 1973-06-25 1973-11-26 Richtungssteuerungsein richtung für ein mit einem Wasserstrahlantrieb ausgestattetes Wasserfahrzeug
BE1005539A BE807950A (fr) 1973-06-25 1973-11-29 Mecanisme destine a diriger un deplacement et a en inverser le sens par ejection d'eau
IT53982/73A IT997691B (it) 1973-06-25 1973-11-29 Meccanismo a getto d acqua per governare ed invertire il movimen to di navi
JP13401073A JPS5341870B2 (da) 1973-06-25 1973-11-29
DK643873*A DK643873A (da) 1973-06-25 1973-11-29
ES421008A ES421008A1 (es) 1973-06-25 1973-11-30 Perfeccionamientos en aparatos de gobierno de la direccion para naves marinas, que emplean un dispositivo de propulsionpor chorro de agua.
FR7342869A FR2234186B1 (da) 1973-06-25 1973-11-30
ZA739690A ZA739690B (en) 1973-06-25 1973-12-27 Waterjet steering and reversing mechanism
CA189,252A CA972633A (en) 1973-06-25 1973-12-31 Waterjet steering and reversing mechanism
AU64163/74A AU453163B2 (en) 1973-06-25 1974-01-03 Waterjet steering and reversing mechanism
BR1110/75A BR7401110A (pt) 1973-06-25 1974-02-15 Aparelho de controle de direcao para navio
NO740548A NO136530C (no) 1973-06-25 1974-02-19 Styre- og reverseringsmekanisme for sj¦g}ende fart¦yer
CH237474A CH574839A5 (da) 1973-06-25 1974-02-20
HK125/76*UA HK12576A (en) 1973-06-25 1976-03-11 Marine vessel waterjet steering and reversing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00378562A US3807346A (en) 1973-06-25 1973-06-25 Waterjet steering and reversing mechanism

Publications (1)

Publication Number Publication Date
US3807346A true US3807346A (en) 1974-04-30

Family

ID=23472924

Family Applications (1)

Application Number Title Priority Date Filing Date
US00378562A Expired - Lifetime US3807346A (en) 1973-06-25 1973-06-25 Waterjet steering and reversing mechanism

Country Status (16)

Country Link
US (1) US3807346A (da)
JP (1) JPS5341870B2 (da)
BE (1) BE807950A (da)
BR (1) BR7401110A (da)
CA (1) CA972633A (da)
CH (1) CH574839A5 (da)
DK (1) DK643873A (da)
ES (1) ES421008A1 (da)
FR (1) FR2234186B1 (da)
GB (1) GB1396676A (da)
HK (1) HK12576A (da)
IT (1) IT997691B (da)
NL (1) NL7315709A (da)
NO (1) NO136530C (da)
SE (1) SE395132B (da)
ZA (1) ZA739690B (da)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751270A1 (de) * 1977-04-07 1978-10-12 Boeing Co Seitensteuerung fuer wasserstrahlantriebe
US5591057A (en) * 1994-09-30 1997-01-07 The United States Of America As Represented By The Secretary Of The Navy Hull supported steering and reversing gear for large waterjets
US6071156A (en) * 1998-10-30 2000-06-06 Bird-Johnson Company Surface vessel with a fully submerged waterjet propulsion system
EP1035012A2 (en) 1999-03-09 2000-09-13 Bird-Johnson Company Surface vessel with a waterjet propulsion system
US6244914B1 (en) * 1999-12-24 2001-06-12 Bombardier Motor Corporation Of America Shift and steering control system for water jet apparatus
WO2003093104A1 (en) * 2002-04-30 2003-11-13 Rolls-Royce Aktiebolag Steering arrangement for a ship propelled by waterjet
US7819711B1 (en) * 2006-02-15 2010-10-26 James P. von Wolske Retractable thrust reversing bucket for boat propeller
CN102530221A (zh) * 2012-02-22 2012-07-04 华南农业大学 一种船外机自动转向机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347045A (en) * 1965-04-27 1967-10-17 Cape Marine Propulsion Ltd Marine jet propulsion units
US3478712A (en) * 1968-10-16 1969-11-18 Sports Jet Ind Inc Inboard jet propulsion unit
US3611980A (en) * 1969-09-18 1971-10-12 John Van Veldhuizen Amphibious boat with vertical air shutter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070956A (en) * 1961-03-02 1963-01-01 Buehler Corp Swinging gate for jet boat
FR1305297A (fr) * 1961-11-22 1962-09-28 Berkeley Pump Company Dispositif de commande cylindrique pour turbine de propulsion hydraulique de bateau
US3384306A (en) * 1966-03-28 1968-05-21 Hanley Hydrojet Inc Hydraulic jet control
GB1211531A (en) * 1966-10-05 1970-11-11 John Ludlow Leaper Jet deflection control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347045A (en) * 1965-04-27 1967-10-17 Cape Marine Propulsion Ltd Marine jet propulsion units
US3478712A (en) * 1968-10-16 1969-11-18 Sports Jet Ind Inc Inboard jet propulsion unit
US3611980A (en) * 1969-09-18 1971-10-12 John Van Veldhuizen Amphibious boat with vertical air shutter

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751270A1 (de) * 1977-04-07 1978-10-12 Boeing Co Seitensteuerung fuer wasserstrahlantriebe
US5591057A (en) * 1994-09-30 1997-01-07 The United States Of America As Represented By The Secretary Of The Navy Hull supported steering and reversing gear for large waterjets
US6071156A (en) * 1998-10-30 2000-06-06 Bird-Johnson Company Surface vessel with a fully submerged waterjet propulsion system
EP1035012A2 (en) 1999-03-09 2000-09-13 Bird-Johnson Company Surface vessel with a waterjet propulsion system
US6152792A (en) * 1999-03-09 2000-11-28 Bird-Johnson Company Steering and reversing apparatus for waterjet propulsion systems
US6244914B1 (en) * 1999-12-24 2001-06-12 Bombardier Motor Corporation Of America Shift and steering control system for water jet apparatus
WO2003093104A1 (en) * 2002-04-30 2003-11-13 Rolls-Royce Aktiebolag Steering arrangement for a ship propelled by waterjet
US20050118898A1 (en) * 2002-04-30 2005-06-02 Sven-Gunnar Karlsson Steering arrangement for a ship propelled by waterjet
US7029343B2 (en) * 2002-04-30 2006-04-18 Rolls-Royce Aktiebolag Steering arrangement for a ship propelled by waterjet
AU2003224585B2 (en) * 2002-04-30 2008-10-09 Rolls-Royce Aktiebolag Steering arrangement for a ship propelled by waterjet
KR100976888B1 (ko) 2002-04-30 2010-08-18 롤스 로이스 아베 워터 제트에 의해 추진되는 선박용 조타 장치
US7819711B1 (en) * 2006-02-15 2010-10-26 James P. von Wolske Retractable thrust reversing bucket for boat propeller
CN102530221A (zh) * 2012-02-22 2012-07-04 华南农业大学 一种船外机自动转向机构

Also Published As

Publication number Publication date
SE395132B (sv) 1977-08-01
CH574839A5 (da) 1976-04-30
IT997691B (it) 1975-12-30
JPS5021492A (da) 1975-03-07
BE807950A (fr) 1974-05-29
ZA739690B (en) 1974-11-27
DE2359322B2 (de) 1976-09-23
CA972633A (en) 1975-08-12
SE7315098L (da) 1974-12-27
NO136530C (no) 1977-09-21
NO136530B (da) 1977-06-13
NL7315709A (da) 1974-12-30
DE2359322A1 (de) 1975-01-16
FR2234186A1 (da) 1975-01-17
GB1396676A (en) 1975-06-04
AU6416374A (en) 1974-09-26
DK643873A (da) 1975-02-10
JPS5341870B2 (da) 1978-11-07
ES421008A1 (es) 1976-05-01
HK12576A (en) 1976-03-19
BR7401110A (pt) 1975-10-14
FR2234186B1 (da) 1978-11-10
NO740548L (da) 1975-01-20

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