EP0480211B1 - Hélice à pas variable - Google Patents

Hélice à pas variable Download PDF

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Publication number
EP0480211B1
EP0480211B1 EP91115727A EP91115727A EP0480211B1 EP 0480211 B1 EP0480211 B1 EP 0480211B1 EP 91115727 A EP91115727 A EP 91115727A EP 91115727 A EP91115727 A EP 91115727A EP 0480211 B1 EP0480211 B1 EP 0480211B1
Authority
EP
European Patent Office
Prior art keywords
stator
propeller
piston rod
pressure medium
variable
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
EP91115727A
Other languages
German (de)
English (en)
Other versions
EP0480211A1 (fr
Inventor
Peter Müller
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0480211A1 publication Critical patent/EP0480211A1/fr
Application granted granted Critical
Publication of EP0480211B1 publication Critical patent/EP0480211B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines

Definitions

  • the invention relates to an adjustable propeller with adjusting rods arranged in the propeller hub for adjusting the propeller blades and with a hydraulic cylinder for axially displacing the adjusting rods.
  • Propeller blades of variable pitch propellers can be adjusted by hand or with a servo system. Manual adjustment is only possible with small adjustable propellers, since the adjustment forces can no longer be controlled manually with larger adjustable propellers.
  • Variable pitch propellers of the type described in the introduction are known in various designs.
  • the adjustment forces act as external forces that put additional strain on the thrust bearing of the propeller.
  • the hydraulic cylinder is arranged upstream in front of the propeller in its bearing block, the piston rod of the hydraulic cylinder extending through the variable pitch propeller and being coupled to the adjusting rods on the downstream side. All known systems are usually designed for a specific type and size of propeller. An exchange or retrofitting of the hydraulic system is usually not possible.
  • the object of the invention is to design the hydraulic adjustment for a variable propeller so that it can be used regardless of the type of propeller and the size of the propeller existing propellers can also be retrofitted with them.
  • the hydraulic cylinder is arranged coaxially to and downstream of the propeller shaft, its cylinder housing being releasably connectable to the adjusting rods and its piston rod releasably connectable to the propeller shaft, and that the piston rod, which extends beyond the cylinder housing, is rotatably attached to one in one Boat hull or a control sword of a sterndrive stator is mounted through which pressure medium lines are guided.
  • the stator with the components arranged therein and the hydraulic cylinder rotatably mounted therein is an assembly which is independent of the variable pitch propeller and which can be connected to the hull or a control sword of a sterndrive.
  • variable pitch propeller and its adjusting mechanism are connected with detachable connections between the piston rod and the propeller hub or propeller shaft on the one hand and the cylinder housing and the adjusting rods on the other.
  • the adjusting rods can be axially displaced by relative axial displacement between the cylinder housing and the pistons, and the propeller blades of the adjustable propeller can thereby be adjusted.
  • the piston must be double-acting. If it is a very rigid construction or if the axial adjustment paths are relatively large, it is advantageous if the stator is kept movable in the axial direction. A fine adjustment of the propeller blades is nevertheless possible, because only the axial relative displacement between the cylinder housing and the piston is responsible for this.
  • the end of the piston rod which extends beyond the cylinder housing is surrounded by a bushing which has pressure medium channels which connect the pressure medium lines to the working spaces of the Connect the hydraulic cylinder.
  • the bush rotating with the pistons or the piston rod is mounted in the stator. This enables a simple and reliable seal between the rotating and the fixed parts of the system, in particular if the pressure medium lines of the stator open between the bearings of the bushing and leakage collecting chambers are provided on the mutually facing sides of the bearings, which are provided by a through the stator guided line are connected to a pressure medium tank.
  • the sealing of the only axially displaceable parts, for example the piston in the cylinder housing is not critical in comparison and can be achieved by conventional means.
  • a certain position of the propeller blades can also be set in a simple and reliable manner if the end of the piston rod on the propeller side is connected to the propeller shaft by means of a threaded section and the end of the piston rod on the stator side has a profile recess into which a profile pin which is axially displaceable against spring action in the stator is insertable, the piston being axially adjustable by rotating the profile pin pressed into the profile recess. This allows e.g. move or adjust the pitch range of the propeller blades as required.
  • An adjustable propeller 2 with propeller blades 3 is mounted on a sterndrive 1 shown in FIG. Downstream behind the variable-pitch propeller 2, a control sword 4 is mounted on the underside of the sterndrive 1 on a rubber-mounted pivot pin 5, which can execute 5 pivoting movements limited about the axis of the pivot pin.
  • a stator 7 is fastened with a bolt 6, in which a hydraulic cylinder 8 is rotatably mounted, the cylinder housing 9 of which is detachably connected to adjusting rods 10 projecting beyond the free end face of the variable pitch propeller 2 and the piston rod 11 of which is detachably connected to the propeller shaft 12 or a component connected to it is detachably connected.
  • a hydraulic pump unit 13 is arranged in the hull 14. Pressure medium lines 15, 16, 17 and at least one measuring line 18 extend from the hydraulic pump unit 13 through the sterndrive 1 and the control sword 4 to the stator 7.
  • the cylinder housing has a number of radial projections 19 corresponding to the number of adjusting rods 10 or the number of propeller blades 3, with assigned recesses 20 for adjusting and releasably fastening the adjusting rods 10.
  • the piston 21 is made in one piece with the piston rod 11, which has a threaded end 24 on the propeller side, which is screwed into an associated internal thread de the propeller shaft 12 or a component connected to it.
  • the propeller-side pressure medium chamber 23 is closed with a cylinder cover 26 sealed against the piston rod 11 and the propeller shaft 12 and screwed into an internally threaded section 25 of the cylinder housing 9.
  • the piston rod 11 extends into the stator 7 and is mounted in the stator.
  • the piston rod 11 is surrounded by a bushing 27, which is rotatably mounted in the stator 7 in two ball bearings 28 which are arranged at a distance from one another.
  • the bushing 27 has a radial flange 29 on the propeller side, with which it is fastened on the inside to the cylinder housing 9 and which delimits the pressure medium space 22. All parts described so far rotate with the propeller shaft 12.
  • an oil distribution ring 30 is arranged on the bushing 27, into which the pressure medium lines 15, 16 open.
  • the pressure medium lines 15, 16 are connected to the hydraulic pump unit 13 via assigned valve controls.
  • Pressure medium channels 31 extend from these pressure medium lines 15, 16 and extend through the oil distribution ring 30 and the bushing 27 to the working spaces 22 and 23, respectively. It goes without saying that the pressure medium line 15 is connected to the pressure medium space 22 and the pressure medium line 16 to the pressure medium space 23, or vice versa.
  • collecting chambers 32 which receive leakage oil which is between the rotating and the stationary Parts emerges. Both collecting chambers 32 are connected to one another via a connecting bore 33 in the bushing 27, and one of the collecting chambers 32 is connected to the pressure medium line 17, which in turn leads to a pressure medium tank in the hull. The leakage oil entering the collecting chambers 32 also lubricates the ball bearings 28.
  • the stator end of the piston rod 11 has a e.g. hexagonal profile recess 34.
  • the associated profile end 35 of a pin 36 can be pressed into this profile recess 34 against the action of a spring 37.
  • the pin 36 is mounted coaxially to the piston rod 11 in the stator 7 and has at its outer end a e.g. hexagonal profile recess 38, into which an Allen key can be inserted. With the help of the Allen key, the pin 36 can be axially displaced against the action of the spring 37 until its profile end 35 engages in the profile recess 34 of the piston rod 11. Then, by turning the Allen key, the piston rod 11 can also be rotated with its threaded end 24 in the propeller shaft 12, which changes the relative position of the piston 21 in the cylinder housing 9. This allows the pitch range of the propeller blades to be adjusted.
  • the pin 36 is surrounded by a sensor housing 39 which carries an induction winding 40.
  • the sensor housing 39 and the induction winding 40 are surrounded by an axial flange 41 adjoining the end of the piston rod 11 and together with this form a measuring system for the relative displacement of the piston 21 in the cylinder housing 9 or for the respective position of the propeller blades.
  • the induction winding 40 is connected via the measuring line 18 to a display device in the boat.
  • the measuring line 18 is sealed by an opening 42 out of the stator 7 in the control sword 4 and out.
  • the unit shown in Figure 2 is independent of the variable pitch propeller and can be coupled to variable pitch propellers of different types and sizes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)

Claims (6)

  1. Hélice à pas variable, comprenant des tiges de commande disposées dans le moyeu d'hélice pour changer le pas ou l'orientation des pales d'hélice et un vérin hydraulique pour la translation axiale des tiges de commande, caractérisée en ce que le vérin hydraulique (8) est disposé coaxialement par rapport au moyeu d'hélice et en aval derrière celui-ci, le carter-cylindre (9) du vérin pouvant être relié de façon détachable aux tiges de commande (10) et sa tige de piston (11) pouvant être reliée de façon détachable à l'arbre porte-hélice (12), et que la tige de piston (11), prolongée au-delà du carter-cylindre (9), est supportée dans un stator (7) maintenu fixe en rotation sur une coque de bateau (14) ou un sabre-gouvernail (4) d'un propulseur Z (1) et par lequel passent des conduites de fluide de pression (15, 16, 17).
  2. Hélice à pas variable selon la revendication 1, caractérisée en ce que le stator (7) est maintenu mobile en direction axiale.
  3. Hélice à pas variable selon la revendication 1 ou 2, caractérisée en ce que l'extrémité de la tige de piston (11), prolongée au-delà du carter-cylindre (9), est entourée d'un manchon (27) qui présente des canaux de fluide de pression (31) reliant les conduites de fluide de pression (15, 16) aux chambres de travail (22, 23) du vérin hydraulique (8), et que le manchon (27) est monté dans le stator (7).
  4. Hélice à pas variable selon une des revendications 1 - 3, caractérisée en ce que les conduites de fluide de pression (15, 16, 17) du stator (7) débouchent entre les paliers (28) du manchon (27) et que des chambres collectrices de fuites (32) sont prévues sur les côtés dirigés l'un vers l'autre des paliers (28), chambres qui sont raccordées par une conduite (17, 33) traversant le stator (7) à un réservoir de fluide de pression.
  5. Hélice à pas variable selon une des revendications 1 - 4, caractérisée en ce que l'extrémité côté hélice de la tige de piston (11) est raccordée par un segment fileté (24) à l'arbre porte-hélice (12) et que l'extrémité côté stator de la tige de piston (11) présente un évidement profité (34) dans lequel peut être introduit un tenon profité (35, 36) qui est déplaçable axialement à l'encontre d'une force élastique dans le stator (7), l'agencement étant tel que la rotation du tenon profité (35, 36), engagé dans l'évidement profité (34), permet d'ajuster le piston (11) axialement.
  6. Hélice à pas variable selon une des revendications 1 - 5, caractérisée en ce que l'extrémité côté stator de la tige de piston (11) est suivie d'un prolongement axial (41) qui s'étend par-dessus un boîtier de capteur (39) solidaire du stator et comprenant un enroulement d'induction (40), et que l'enroulement d'induction (40) peut être connecté à un appareil de mesure par une ligne de mesure (18) passant par le stator (7).
EP91115727A 1990-10-09 1991-09-17 Hélice à pas variable Expired - Lifetime EP0480211B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031932 1990-10-09
DE4031932A DE4031932A1 (de) 1990-10-09 1990-10-09 Verstellpropeller

Publications (2)

Publication Number Publication Date
EP0480211A1 EP0480211A1 (fr) 1992-04-15
EP0480211B1 true EP0480211B1 (fr) 1994-08-31

Family

ID=6415883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115727A Expired - Lifetime EP0480211B1 (fr) 1990-10-09 1991-09-17 Hélice à pas variable

Country Status (5)

Country Link
US (1) US5226844A (fr)
EP (1) EP0480211B1 (fr)
JP (1) JP3065394B2 (fr)
DE (2) DE4031932A1 (fr)
NO (1) NO913907L (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2120838B1 (es) * 1995-01-19 1999-05-16 Francisco Cotoruelo Victor De Sistema propulsor para barcos con eje motriz macizo.
US5863230A (en) * 1996-09-26 1999-01-26 Morrison; Douglas M. Universal marine drive apparatus and uses thereof
US5997253A (en) * 1998-07-09 1999-12-07 Brunswick Corporation Adjustable pitch propeller
DE19936949C1 (de) * 1999-08-05 2001-01-25 Peter Mueller Bootsantrieb mit einem Verstellpropeller
US6261062B1 (en) 2000-01-17 2001-07-17 Brunswick Corporation Actuation system for a controllable pitch propeller
US6379114B1 (en) 2000-11-22 2002-04-30 Brunswick Corporation Method for selecting the pitch of a controllable pitch marine propeller
US6425788B1 (en) * 2001-06-27 2002-07-30 Ab R & D Marine Oy Controllable-pitch propeller
DE102006045079A1 (de) * 2006-09-21 2008-04-17 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045080A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045076A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045078B4 (de) * 2006-09-21 2010-04-29 Air Fertigung-Technologie Gmbh & Co.Kg Schiff mit einem Antrieb, der einen Verstellpropeller aufweist
US8167553B2 (en) * 2009-06-09 2012-05-01 Hamilton Sundstrand Corporation Electrical system for driving a propeller pitch change mechanism
CH705415A2 (de) 2011-08-16 2013-02-28 Peter A Mueller Fluidanschluss.
CH705623A2 (de) 2011-09-29 2013-04-15 Peter A Mueller Steckkupplung für Fluid und/oder Strom.
CN102556312B (zh) * 2012-01-09 2014-02-12 武汉船用机械有限责任公司 一种可调螺距全回转推进器用螺距反馈杆装置
WO2014198288A1 (fr) * 2013-06-10 2014-12-18 Berg Propulsion Technology Ab Configuration d'hélice

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH279159A (de) * 1946-10-07 1951-11-15 Johannes Liaaen Nils Propellerverstelleinrichtung mit Servomotor für Schiffe, Pumpen oder Turbinen.
US2704991A (en) * 1953-05-08 1955-03-29 Gustave J Danielson Reversible variable pitch propeller for boats
US2931443A (en) * 1956-02-07 1960-04-05 Karlstad Mekaniska Ab Pitch control means for variable pitch propellers
US3232350A (en) * 1964-07-09 1966-02-01 Michigan Wheel Company Controllable pitch propeller
FR2044651A1 (fr) * 1969-05-12 1971-02-26 Wieczorek Julien
DE2064167A1 (de) * 1970-12-29 1972-07-06 Rostock Dieselmotoren Einrichtung zur Messung der Flügelsteigung bei Verstellpropelleranlagen
US4964822A (en) * 1984-03-16 1990-10-23 Peter Mueller Variable pitch propeller for watercraft
CH670609A5 (fr) * 1986-08-22 1989-06-30 Peter Mueller
US4929201A (en) * 1987-04-06 1990-05-29 Vari-Prop, Inc. Variable pitch marine propeller system
IT1211647B (it) * 1987-07-10 1989-11-03 Sintec Srl Struttura di supporto per timone, elica e linea d'asse per navi di qualsiasi tipo ed uso

Also Published As

Publication number Publication date
JP3065394B2 (ja) 2000-07-17
DE4031932A1 (de) 1992-04-16
DE59102731D1 (de) 1994-10-06
NO913907D0 (no) 1991-10-04
EP0480211A1 (fr) 1992-04-15
JPH04244498A (ja) 1992-09-01
DE4031932C2 (fr) 1993-06-03
NO913907L (no) 1992-04-10
US5226844A (en) 1993-07-13

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