EP0297162A1 - Hélice à pas variable pour engins flottants - Google Patents

Hélice à pas variable pour engins flottants Download PDF

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Publication number
EP0297162A1
EP0297162A1 EP87109600A EP87109600A EP0297162A1 EP 0297162 A1 EP0297162 A1 EP 0297162A1 EP 87109600 A EP87109600 A EP 87109600A EP 87109600 A EP87109600 A EP 87109600A EP 0297162 A1 EP0297162 A1 EP 0297162A1
Authority
EP
European Patent Office
Prior art keywords
propeller
hub
handle
adjusting device
variable pitch
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.)
Granted
Application number
EP87109600A
Other languages
German (de)
English (en)
Other versions
EP0297162B1 (fr
Inventor
Peter Müller
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES198787109600T priority Critical patent/ES2025593T3/es
Priority to DE8787109600T priority patent/DE3773205D1/de
Priority to EP87109600A priority patent/EP0297162B1/fr
Priority to US07/212,662 priority patent/US4897056A/en
Priority to EP88110566A priority patent/EP0300252A1/fr
Priority to JP63162766A priority patent/JPS6463493A/ja
Publication of EP0297162A1 publication Critical patent/EP0297162A1/fr
Application granted granted Critical
Publication of EP0297162B1 publication Critical patent/EP0297162B1/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
    • B63H3/12—Propeller-blade pitch changing the pitch being adjustable only when propeller is stationary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary

Definitions

  • the invention relates to a variable pitch propeller for watercraft, which is rotatably mounted in an outboard-supported, pivotable support body and is driven by an engine via a drive connection, the propeller blades of which are rotatably mounted in a propeller hub attached to the end of the drive connection of a drive shaft and by an adjusting device different pitch angles are adjustable.
  • Variable pitch propellers have long been used as propulsion for watercraft. They essentially consist of propeller blades rotatably mounted in a propeller hub, on which the pitch of the propeller blades can be adjusted. Two propeller blades are usually used for small drive powers and three, four and more propeller blades for larger drive powers.
  • the different embodiments of the adjustable propellers differ, apart from the number of propeller blades, only by the type of adjustment device for the pitch adjustment of the propeller blades.
  • the adjustment devices for the variable pitch propellers include hydrostatic thrust piston drives, which are housed inside the drive shaft and the propeller hub are.
  • hydrostatic thrust piston drives which are housed inside the drive shaft and the propeller hub are.
  • mechanical adjustment devices are used, in which the propeller blades are adjusted by push rods, which act eccentrically on the foot of the propeller blade.
  • the push rods themselves are moved back and forth via a mechanical linkage in the direction of the axis of the propeller hub.
  • the adjustment force can be applied either manually or using a linear motor.
  • variable pitch propellers have only been used in certain categories of watercraft, since even with the simplest construction, the price for certain categories of watercraft is still too high.
  • variable-pitch propeller of the type described at the outset in such a way that this obstacle is overcome and the adjusting device is further simplified, so that the variable-pitch propeller, with its undeniable advantages over the fixed-pitch propeller, can also be used in other categories of watercraft in which he has not yet been used for the reasons mentioned.
  • the adjusting device is designed as an attachment rotating with the propeller hub and mounted on the latter.
  • the adjustable propeller is rotatably mounted on an outboard-supported, swiveling support body and is driven by an engine which, like the outboard drive, is fastened to the support body or, as with the sterndrive, is housed in the hull of the watercraft.
  • the power of the engine usually a thermal machine, is transmitted to the variable-pitch propeller via gearwheels and shafts, the latter of which carries the variable-pitch propeller at the end of the transmission mechanism.
  • the support body with the adjustable propeller mounted on it can then be pivoted to such an extent that the propeller lies wholly or at least partially above the water surface, so that it is easily accessible and can be adjusted easily.
  • the invention is based on the consideration that the already existing pivotability of the outboard drive can be used to simplify the adjustment drive; by swiveling the drive, the variable pitch propeller connected to these drives is swung over the level of the water surface and is therefore easily accessible.
  • the outboard drive 1 shown in FIG. 1 has a support body 2, on which an engine, preferably a thermal motor, covered by a hood 3 is supported.
  • an adjustable propeller 5 is arranged, which is attached to a drive shaft (not shown).
  • the horizontal drive shaft is driven by the engine via a shaft mounted in the support body 2 and an angular gear.
  • Such a mechanical power transmission from the engine to the variable pitch propeller 5 is generally known and is therefore not described in detail.
  • the outboard drive 1 is rotatably mounted on a fastening support 6, which is fastened at a location provided for this purpose on the rear wall 8 of the boat hull, which is shown partly in broken lines.
  • the support body 2 is pivotally mounted about an axis 9 and can be pivoted into the position shown in broken lines, as a result of which the variable-pitch propeller 5 protrudes from the water.
  • an adjusting device 12 see FIG. 2, is attached to its hub 11, which has a handle 15 protruding from the hub 11.
  • the adjusting device 12 is described in detail with reference to FIG. 2.
  • the inner hub 18 is essentially an annular hollow body which is placed on the end of the drive shaft 16 and secured with a nut 14.
  • the inner hub 18 has a tubular Hub extension, which is provided at its end with an external thread 21.
  • the outer hub 19 is also essentially a closed ring which is connected to the inner hub 18 by webs 22. Between the webs 27 there are through-channels 50 through which the flue gases of the drive machine are discharged.
  • Propeller blades 25 are rotatably mounted in the outer hub 19.
  • the propeller blade has a foot 26 with which it is screwed by screws 24 to an adjusting plate 27 which is rotatably guided by a retaining ring 28 screwed into the outer hub 19.
  • a guide groove 31 is incorporated in the adjustment plate 27, into which a pin 32 provided with a sliding block 31 is guided.
  • the pin 32 is part of a bumper 33, which lies in a bore 35 in the outer hub 19.
  • the annular outer hub 19 has a corresponding thickening of material at the location of the bearing of the propeller blades 25.
  • the bumpers 33 which are equipped with seals 36, for example O-rings, to seal the bore 35 and the space around the adjusting plate 27 are connected to one another at the end 37 protruding from the bore 35 by a synchronous flange 40 which is connected by means of nuts 41 the ends 37 of the bumpers 33 is firmly connected.
  • the synchronous flange 40 has an inner bore 42, with which the synchronous flange 40 is rotatably guided in a guide groove 43 of a spindle nut 45. So that the synchronous flange 40 can be inserted into the guide groove 43, the spindle nut has a screw ring 46 with which the one side wall of the guide groove 43 is formed.
  • the spindle nut 45 forms, together with the hub extension 20 carrying the external thread 21, a spindle drive which can be rotated by the handle 15.
  • the handle 15 is equipped with axially directed pins 47, which protrude through the spindle nut 45 into bores 48 of the synchronous flange 40.
  • the handle 15 is pulled against the spindle nut 45 by spring force (not shown). If the spindle nut is to be axially displaced in order to adjust the pitch of the propeller blades 25, the handle 15 must be withdrawn to such an extent that the pins 47 are removed from the spindle nut 45 and the latter can rotate freely with respect to the synchronous flange 40. By turning the spindle nut 45, this and thus also the synchronous flange 40 with the bumpers 33 is axially displaced, the displacement of the bumpers 33 causing the adjustment plate 27 and thus the propeller blade 25 to rotate. If the desired pitch of the propeller blades 25 is set, the pins 47 of the handle 15 are snapped back into the bores 48 of the synchronous flange 40. As a result, the spindle drive is secured, so that an undesired adjustment of the pitch of the propeller blades 25 is prevented.
  • the adjustment device described makes it possible to adapt the pitch of the adjustment propeller 25 to the respective driving conditions. If, for example, water skiing is carried out with the watercraft, the propeller blades 25 are set to a smaller pitch, as a result of which a much better drive efficiency is achieved. For fast driving, on the other hand, a larger pitch of the propeller blades 25 is set by turning the handle 15 again, as a result of which a good drive efficiency is again achieved.
  • This setting option makes a noticeable saving in fuel. The saving is achieved by a very simple and therefore inexpensive solution that can also be operated without any problems. It is essential here that the spindle drive does not take up a much larger diameter than that of the inner hub 18, so that the smoke gases of the drive machine can be discharged unhindered through the through-channels 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Exhaust Silencers (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Turbines (AREA)
  • Motor Power Transmission Devices (AREA)
EP87109600A 1987-07-03 1987-07-03 Hélice à pas variable pour engins flottants Expired - Lifetime EP0297162B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES198787109600T ES2025593T3 (es) 1987-07-03 1987-07-03 Helice de paso variable para embarcaciones.
DE8787109600T DE3773205D1 (de) 1987-07-03 1987-07-03 Verstellpropeller fuer wasserfahrzeuge.
EP87109600A EP0297162B1 (fr) 1987-07-03 1987-07-03 Hélice à pas variable pour engins flottants
US07/212,662 US4897056A (en) 1987-07-03 1988-06-28 Propeller for water vehicle
EP88110566A EP0300252A1 (fr) 1987-07-03 1988-07-01 Hélice à pas variable pour engins flottants
JP63162766A JPS6463493A (en) 1987-07-03 1988-07-01 Variable pitch-propeller for water vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87109600A EP0297162B1 (fr) 1987-07-03 1987-07-03 Hélice à pas variable pour engins flottants

Publications (2)

Publication Number Publication Date
EP0297162A1 true EP0297162A1 (fr) 1989-01-04
EP0297162B1 EP0297162B1 (fr) 1991-09-18

Family

ID=8197107

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87109600A Expired - Lifetime EP0297162B1 (fr) 1987-07-03 1987-07-03 Hélice à pas variable pour engins flottants
EP88110566A Withdrawn EP0300252A1 (fr) 1987-07-03 1988-07-01 Hélice à pas variable pour engins flottants

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88110566A Withdrawn EP0300252A1 (fr) 1987-07-03 1988-07-01 Hélice à pas variable pour engins flottants

Country Status (5)

Country Link
US (1) US4897056A (fr)
EP (2) EP0297162B1 (fr)
JP (1) JPS6463493A (fr)
DE (1) DE3773205D1 (fr)
ES (1) ES2025593T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125436C1 (en) * 1991-08-01 1993-02-11 Peter Adliswil Ch Mueller Propeller with detachable blades - has feet on blades bolting onto depressions in hub and includes streamline sleeve for hub
DE4231814C1 (de) * 1992-09-23 1994-01-20 Landolt Alexander Dr Verstellpropeller, insbesondere für Sportboote
DE19936951A1 (de) * 1999-08-05 2001-02-15 Peter Mueller Verstellpropeller für Sportboote und Sportjachten

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810561A (en) * 1997-04-21 1998-09-22 Cossette; Thomas C. Variable pitch propeller apparatus
SE512824C2 (sv) 1997-09-25 2000-05-22 Anders Samuelsson Marin propeller
US5967753A (en) * 1998-09-28 1999-10-19 Muller; Peter Controllable-pitch propeller, especially for sport boats and other watercraft
DE19936949C1 (de) * 1999-08-05 2001-01-25 Peter Mueller Bootsantrieb mit einem Verstellpropeller
US6340290B1 (en) 2000-06-20 2002-01-22 Brunswick Corporation Controllable pitch propeller with a fail safe increased pitch movement
US7597598B2 (en) * 2004-07-20 2009-10-06 Aimbridge Pty, Ltd. Propeller for a marine propulsion system
US8081540B2 (en) * 2008-06-20 2011-12-20 Bp Corporation North America Inc. Rotary subwoofer marine seismic source
CN103612735B (zh) * 2013-11-01 2017-01-11 武汉船用机械有限责任公司 一种可调螺距螺旋桨装置
CN107339254B (zh) * 2017-06-20 2023-07-04 广东河海泵业机械有限公司 基于齿差驱动的水泵叶片角度在役调节装置
CN109625215B (zh) * 2018-12-05 2020-09-22 山东大学 水下矢量推进螺旋桨和水下航行器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49541C (de) * A. marque in Brßssel in Belgien Verstellbare Schiffsschraube
US2574951A (en) * 1945-08-03 1951-11-13 T M K Corp Adjustable propeller
US2953208A (en) * 1958-05-15 1960-09-20 Lesnor Maehr Marine Co Inc Variable pitch marine propeller
US3308889A (en) * 1965-07-06 1967-03-14 Finn Bergishagen Variable pitch propeller with automatic adjustment
US3403735A (en) * 1967-03-10 1968-10-01 Henrik G. Langhjelm Adjustable variable pitch propeller

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH668046A5 (de) * 1983-09-22 1988-11-30 Peter Mueller Verstellpropeller und antrieb fuer wasserfahrzeuge.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49541C (de) * A. marque in Brßssel in Belgien Verstellbare Schiffsschraube
US2574951A (en) * 1945-08-03 1951-11-13 T M K Corp Adjustable propeller
US2953208A (en) * 1958-05-15 1960-09-20 Lesnor Maehr Marine Co Inc Variable pitch marine propeller
US3308889A (en) * 1965-07-06 1967-03-14 Finn Bergishagen Variable pitch propeller with automatic adjustment
US3403735A (en) * 1967-03-10 1968-10-01 Henrik G. Langhjelm Adjustable variable pitch propeller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125436C1 (en) * 1991-08-01 1993-02-11 Peter Adliswil Ch Mueller Propeller with detachable blades - has feet on blades bolting onto depressions in hub and includes streamline sleeve for hub
DE4231814C1 (de) * 1992-09-23 1994-01-20 Landolt Alexander Dr Verstellpropeller, insbesondere für Sportboote
DE19936951A1 (de) * 1999-08-05 2001-02-15 Peter Mueller Verstellpropeller für Sportboote und Sportjachten
DE19936951C2 (de) * 1999-08-05 2001-08-23 Peter Mueller Verstellpropeller für Sportboote und Sportjachten
US6364610B1 (en) 1999-08-05 2002-04-02 Nasyc Holding S.A. Manually adjustable variable-pitch boat propeller

Also Published As

Publication number Publication date
ES2025593T3 (es) 1992-04-01
JPS6463493A (en) 1989-03-09
EP0297162B1 (fr) 1991-09-18
DE3773205D1 (de) 1991-10-24
US4897056A (en) 1990-01-30
EP0300252A1 (fr) 1989-01-25

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