EP1560749B1 - Zwischen einer ersten und einer zweiten schiffsantriebsvorrichtung angeordnetes hydraulisches system - Google Patents

Zwischen einer ersten und einer zweiten schiffsantriebsvorrichtung angeordnetes hydraulisches system Download PDF

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Publication number
EP1560749B1
EP1560749B1 EP03810725A EP03810725A EP1560749B1 EP 1560749 B1 EP1560749 B1 EP 1560749B1 EP 03810725 A EP03810725 A EP 03810725A EP 03810725 A EP03810725 A EP 03810725A EP 1560749 B1 EP1560749 B1 EP 1560749B1
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EP
European Patent Office
Prior art keywords
hydraulic
piston
propulsion device
cylinder
propulsion
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
EP03810725A
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English (en)
French (fr)
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EP1560749A1 (de
Inventor
Benny Hedlund
Mikael Asberg
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.)
Volvo Penta AB
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Volvo Penta AB
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    • 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
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/12—Means enabling steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H2020/003—Arrangements of two, or more outboard propulsion units
    • 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
    • B63H25/06—Steering by rudders
    • B63H2025/066—Arrangements of two or more rudders; Steering gear therefor
    • 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
    • B63H25/06—Steering by rudders
    • B63H25/08—Steering gear
    • B63H25/14—Steering gear power assisted; power driven, i.e. using steering engine
    • B63H25/26—Steering engines
    • B63H25/28—Steering engines of fluid type
    • B63H25/30—Steering engines of fluid type hydraulic
    • 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
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller

Definitions

  • the present invention relates to a hydraulic system which is arranged between a first and a second marine propulsion device, which are each arranged so that they can rotate about a respective axis at a distance from one another, comprising a first hydraulic piston-cylinder device having a cylinder chamber on each side of said piston, arranged between said first propulsion device and an element fixed in relation to said axis, and a second hydraulic piston-cylinder device having a cylinder chamber on each side of said piston, arranged between said second propulsion device and an element fixed in relation to said axis, according to the preamble to claim 1.
  • marine propulsion devices of the aforementioned type is a propeller rig in a boat propeller drive.
  • the boat propeller drive in this case comprises a shield bolted to the stern of the boat and in which the propeller rig is pivotally suspended in order to allow the propeller rig to be rotated firstly about a vertical axis for steering said boat and secondly about a horizontal axis for trimming and tilting of the propeller rig.
  • two hydraulic cylinders are usually arranged between the shield and the propeller rig, more specifically one on each side of the propeller rig.
  • Marine propulsion devices may also be designed with a propeller rig that extends through the bottom of a boat, preferably in the stern part of the boat, the propeller rig being suspended so that it can rotate about a vertical axis for steering the boat.
  • a tie bar is generally used between the propulsion devices in order to ensure that the angle of the devices relative to one another is kept within a desired interval under varying operating conditions, such as running with a variously laden boat, running in high seas etc., which gives rise to varying hydrodynamic forces.
  • Said tie bar is in this case arranged either between the propulsion devices, outside the hull, or inside the hull between lever arms connected to each propulsion device.
  • One disadvantage with the aforementioned solution is that the tie bar does not allow for just one propeller rig to be raised, for example after grounding in which the rig has been damaged, leaving the other undamaged propeller rig in operation.
  • a further disadvantage with the tie bar between the propeller rigs is that it is relatively exposed to being damaged by external objects when for example docking in a harbor.
  • a further disadvantage of the latter solution is that the tie bar with associated lever arms takes up space in the boat's engine compartment where space is usually very limited.
  • the tie bar arrangement comprises a piston-cylinder device arranged between the propeller rigs and designed to connect the propeller rigs rigidly together under normal operating conditions and to be capable of extension when tilting one of the propeller rigs in order thereby to allow the boat to be powered by just one propeller rig/motor.
  • the piston-cylinder device is designed, when rigid connection is required, to assume a limit position by pneumatic or hydraulic means or with the aid of a helical coil spring.
  • one disadvantage with the said tie bar arrangement between the propeller rigs is that the arrangement is relatively exposed to being damaged by external objects when for example docking in a harbor.
  • Another disadvantage is that the arrangement is only capable of assuming a predefined rigid position and a free position and thus does not permit angular adjustment of the boat propeller drives relative to one another while the boat is running.
  • the object of the present invention is to provide a hydraulic system having a tie bar function between a first and a second marine propulsion device, which are each arranged so that they can rotate about a respective axis at a distance from one another, which is both relatively unsusceptible of being damaged by external objects and which takes up little, if any, space inside the hull of a boat.
  • the invention relates to a hydraulic system arranged between a first and a second marine propulsion device, which are each arranged so that they can rotate about a respective axis at a distance from one another.
  • the hydraulic system comprises a first hydraulic piston-cylinder device having a cylinder chamber on each side of said piston, arranged between said first propulsion device and an element fixed in relation to said axis, and a second hydraulic piston-cylinder device having a cylinder chamber on each side of said piston, arranged between said second propulsion device and an element fixed in relation to said axis.
  • Connecting the cylinder chambers in the first piston-cylinder device to the cylinder chambers in the second piston-cylinder device via a first and a second hydraulic circuit leads to that rotating of one propulsion device results in rotation of the other propulsion device.
  • This provides a tie bar function which takes up little, if any, space inside the hull of a boat and at the same time requires no external arrangement between the propulsion devices which is relatively exposed to being damaged by external objects, in order to obtain said function
  • At least one of said hydraulic circuits is connected to a hydraulic accumulator in order to permit preloading of the system.
  • a hydraulic accumulator in order to permit preloading of the system.
  • a very rigid system with simultaneous elimination of any risk of gas formation in the hydraulic oil can be achieved, or alternatively a system with a built in elasticity.
  • a hydraulic pump is connected to the first and the second hydraulic circuit in order to allow hydraulic oil to be pumped from one circuit to the other.
  • This allows one propulsion device to be rotated in relation to the other, even while the boat is running, with a view not only to adjusting their precise angular position relative to one another, depending on for example the current speed of the boat, but also in certain types of operation, to rotating one propulsion device more than the other, for example when turning at high speed.
  • said first and second piston-cylinder devices are arranged on opposite sides of each propulsion device, so that rotating one propulsion device in one direction results in compression of the first piston-cylinder device and simultaneous expansion of the other piston-cylinder device, thereby rotating the other propulsion device in the same direction.
  • Fig. 1 shows a schematic representation of a hydraulic system 1 arranged between a first marine propulsion device 2 and a second marine propulsion device 3 of the propeller rig type in a boat propeller drive, which are each arranged on the stern 5 of a boat 4 so that they can each rotate about a respective axis 6, 7 at a distance from one another.
  • the hydraulic system 1 comprises a first hydraulic piston-cylinder device 8, having a cylinder chamber 9, 10 on each side of said piston 11, arranged between said first propulsion device 2 and an element 12 fixed in relation to said axis 6 and stern 5, and a second hydraulic piston-cylinder device 13 having a cylinder chamber 14, 15 on each side of said piston 16, arranged between said second propulsion device 3 and an element 17 fixed in relation to said axis 7 and stern 5.
  • a first hydraulic piston-cylinder device 8 having a cylinder chamber 9, 10 on each side of said piston 11, arranged between said first propulsion device 2 and an element 12 fixed in relation to said axis 6 and stern 5
  • a second hydraulic piston-cylinder device 13 having a cylinder chamber 14, 15 on each side of said piston 16, arranged between said second propulsion device 3 and an element 17 fixed in relation to said axis 7 and stern 5.
  • Fig. 1 further shows a steering wheel 20 connected to a hydraulic pump 21, which is in turn connected to a hydraulic valve 22, a so-called control valve, which is in addition connected firstly to a pressure pipe (not shown) from a servo pump driven by a drive motor (not shown) and secondly to an oil reservoir (not shown).
  • the hydraulic valve 22 is further connected via hydraulic pipes 23, 24, 25, 26 to the cylinder chambers 27, 28, 29, 30 in two piston-cylinder devices 31, 32, one on each propulsion device 2, 3.
  • a hydraulic accumulator 33 is also connected to the second hydraulic circuit 19 to achieve preloading of the hydraulic system 1 which, depending on the selected pressure level in the accumulator 33, provides a tie bar function which is very rigid and in which there is, in principle, no risk of any gas formation in the hydraulic oil, or alternatively a tie bar function with a built in elasticity.
  • 34 denotes a monitor device which is arranged in proximity to the steering wheel 20 and is electrically connected to an electronic control unit 35.
  • the control unit 35 is in turn electrically connected to the hydraulic valve 22 and to a hydraulic pump 36, which is designed to pump oil between the first hydraulic circuit 18 and the second hydraulic circuit 19.
  • the control unit 35 is at the same time designed to control the hydraulic valve 22 and the hydraulic pump 36 as a function of an input signal from the monitor device 34, so that the propulsion devices 2, 3 are turned independently of one another, both for adjustment of the precise angle of the propulsion devices relative to one another and for rotating just one propulsion device when maneuvering for example in harbor or at high speed.
  • Fig. 2 shows, in more detail and partially in cross-section, the boat propeller drives shown in Fig. 1 fitted to the stern 5 of the boat 4 with inboard engines 37, 38.
  • the boat propeller drives comprise shields 39, 40 which are bolted to the stern 5 and in which the propeller rigs 2, 3 are pivotally suspended in order to allow the rigs 2, 3 to be rotated firstly about vertical axes 6, 7 for steering said boat 4 and secondly about a horizontal axis 41 for trimming and tilting of the propeller rigs 2, 3.
  • the one piston-cylinder device 31 for steering the boat 4 and the one piston-cylinder device 13 which forms part of the tie bar function of the hydraulic system 1, the other two piston-cylinder devices 8, 32 being partially hidden behind the propeller rigs 2, 3.
  • Fig. 3 shows an alternative embodiment of said marine propulsion device designed with a propeller rig 42, 43 which extends through the bottom 44 of a boat 45, more specifically in the stern part of the boat, the propeller rigs 42, 43 being suspended so that they can rotate about vertical axes 46, 47 for steering the boat 45.
  • the propeller rigs 42, 43 are rotated by means of electric motors (not shown), which are controlled by an electrical control unit 48.
  • the control unit 48 is furthermore designed to control a hydraulic pump 49, in a manner as described above, so that the propulsion devices 42, 43 can be turned independently of one another, both for adjustment of the precise angle of the propulsion devices 42, 43 relative to one another and for rotating just one propulsion device when maneuvering for example in harbor or at high speed.
  • a first hydraulic piston-cylinder device 50 having a cylinder chamber 51, 52 on each side of said piston 53, is arranged between the first propulsion device 42 and an element 54 fixed in relation to said axis
  • a second hydraulic piston-cylinder device 55 having a cylinder chamber 56, 57 on each side of said piston 58, is arranged between said second propulsion device 43 and an element 59 fixed in relation to said axis 47.
  • a hydraulic accumulator 62 is connected to the second hydraulic circuit 61 in order to provide preloading of the hydraulic system 1 which, depending on the selected pressure level in the accumulator 62, provides a tie bar function which is very rigid and in which there is, in principle, no risk of any gas formation in the hydraulic oil, or alternatively a tie bar function with a built in elasticity.
  • hydraulic accumulators may be connected to both of the hydraulic circuits.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Motor Power Transmission Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (6)

  1. Hydrauliksystem (1), das zwischen einer ersten Marineantriebsvorrichtung (2, 42) und einer zweiten Marineantriebsvorrichtung (3, 43) angeordnet ist, die jeweils so angeordnet sind, dass sie um eine jeweilige Achse (6, 7, 46, 47) im Abstand voneinander drehen können, mit einer ersten Hydraulikkolbenzylindervorrichtung (8, 50) mit einer Zylinderkammer (9, 10, 51, 52) auf jeder Seite des Kolbens (11, 12), die zwischen der ersten Antriebsvorrichtung (2, 42) und einem bezüglich der Achse (6, 7, 46, 47) festgelegten Element (12, 54) angeordnet ist, und einer zweiten Hydraulikkolbenzylindervorrichtung (13, 55) mit einer Zylinderkammer (14, 15, 56, 57) auf jeder Seite des Kolbens (16, 58), die zwischen der zweiten Antriebsvorrichtung (3, 43) und einem Element (17, 59) angeordnet ist, das bezüglich der Achse (6, 7, 46, 47) festgelegt ist,
    dadurch gekennzeichnet, dass
    ein erster Hydraulikkreis (18, 60) und ein zweiter Hydraulikkreis (19, 61) so ausgelegt sind, dass sie die Zylinderkammern (9, 10, 51, 52) in der ersten Kolbenzylindervorrichtung (8, 50) mit den Zylinderkammern (14, 15, 56, 57) in der zweiten Kolbenzylindervorrichtung (13, 55) verbinden, damit eine Drehung einer Antriebsvorrichtung (2, 3, 42, 43) in einer Drehung der anderen Antriebsvorrichtung (2, 3, 42, 43) resultiert.
  2. Hydrauliksystem (1) nach Anspruch 1,
    dadurch gekennzeichnet, dass
    der erste Hydraulikkreis (18, 60) und der zweite Hydraulikkreis (19, 61) so mit den Zylinderkammern (9, 10, 14, 15, 51, 52, 56, 57) verbunden sind, dass eine Druckerhöhung in wenigstens einem der Kreise (18, 19, 60, 61) stattfindet, wenn die eine Antriebsvorrichtung (2, 3, 42, 43) gedreht wird.
  3. Hydrauliksystem (1) nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    wenigstens einer der Hydraulikkreise (18, 19, 60, 61) einen hydraulischen Akkumulator (33, 62) zum Erreichen einer Vorbelastung in der ersten bzw. zweiten Hydraulikkolbenzylindervorrichtung (8, 13, 50, 55) umfasst.
  4. Hydrauliksystem (1) nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    die erste hydraulische Pumpe (36, 49) mit dem ersten Hydraulikkreis (18, 60) und dem zweiten Hydraulikkreis (19, 61) verbunden ist, um eine Drehung der einen Antriebsvorrichtung (2, 3, 42, 43) bezüglich der anderen Antriebsvorrichtung (2, 3, 42, 43) zu ermöglichen.
  5. Hydrauliksystem (1) nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    die erste Kolbenzylindervorrichtung (8, 50) und die zweite Kolbenzylindervorrichtung (13, 55) an entgegengesetzten Seiten jeder Antriebsvorrichtung (2, 3, 42, 43) angeordnet sind, so dass eine Drehung einer Antriebsvorrichtung (2, 3, 42, 43) in einer Richtung in einer Kompression der ersten Kolbenzylindervorrichtung (8, 50) und einer gleichzeitigen Expansion der zweiten Kolbenzylindervorrichtung (13, 55) resultiert, wodurch die andere Antriebsvorrichtung (2, 3, 42, 43) in der gleichen Richtung gedreht wird.
  6. Hydrauliksystem (1) nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    wenigstens eine weitere Kolbenzylindervorrichtung (31, 32) zwischen einer Antriebsvorrichtung (2, 3) und einem bezüglich der Achse (6, 7) festgelegten Element angeordnet ist, wobei die Kolbenzylindervorrichtung (31, 32) mit einer Hydraulikpumpe (21) verbunden ist, die von einem manuellen Antriebselement (20) zur Steuerung der Antriebsvorrichtung (2, 3) angetrieben wird.
EP03810725A 2002-11-06 2003-09-24 Zwischen einer ersten und einer zweiten schiffsantriebsvorrichtung angeordnetes hydraulisches system Expired - Lifetime EP1560749B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0203280A SE524180C2 (sv) 2002-11-06 2002-11-06 Hydrauliskt system inrättat mellan ett första och ett andra marint drivaggregat
SE0203280 2002-11-06
PCT/SE2003/001482 WO2004041635A1 (en) 2002-11-06 2003-09-24 Hydraulic system arranged between a first and a second marine propulsion device

Publications (2)

Publication Number Publication Date
EP1560749A1 EP1560749A1 (de) 2005-08-10
EP1560749B1 true EP1560749B1 (de) 2010-12-01

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ID=20289484

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Application Number Title Priority Date Filing Date
EP03810725A Expired - Lifetime EP1560749B1 (de) 2002-11-06 2003-09-24 Zwischen einer ersten und einer zweiten schiffsantriebsvorrichtung angeordnetes hydraulisches system

Country Status (7)

Country Link
EP (1) EP1560749B1 (de)
AT (1) ATE490172T1 (de)
AU (1) AU2003266743A1 (de)
CA (1) CA2503575A1 (de)
DE (1) DE60335199D1 (de)
SE (1) SE524180C2 (de)
WO (1) WO2004041635A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2996935B1 (de) * 2013-05-14 2020-06-17 Marine Canada Acquisition Inc. Montageanordnung zur positionierung heckmontierter antriebseinheiten mit einer vorwärtskonvergenz

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968192A (en) * 1959-09-02 1961-01-17 Albert C Fletcher Coupling device for twin outboard motors
US4778418A (en) * 1987-08-31 1988-10-18 Outboard Marine Corporation Tie bar for marine propulsion devices

Also Published As

Publication number Publication date
EP1560749A1 (de) 2005-08-10
AU2003266743A1 (en) 2004-06-07
SE0203280D0 (sv) 2002-11-06
DE60335199D1 (de) 2011-01-13
ATE490172T1 (de) 2010-12-15
WO2004041635A1 (en) 2004-05-21
CA2503575A1 (en) 2004-05-21
SE524180C2 (sv) 2004-07-06
SE0203280L (sv) 2004-05-07

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