EP1029781A3 - Controllable pitch propeller, especially for watercraft - Google Patents

Controllable pitch propeller, especially for watercraft Download PDF

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Publication number
EP1029781A3
EP1029781A3 EP99122538A EP99122538A EP1029781A3 EP 1029781 A3 EP1029781 A3 EP 1029781A3 EP 99122538 A EP99122538 A EP 99122538A EP 99122538 A EP99122538 A EP 99122538A EP 1029781 A3 EP1029781 A3 EP 1029781A3
Authority
EP
European Patent Office
Prior art keywords
propeller
propeller blades
watercraft
yoke
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.)
Withdrawn
Application number
EP99122538A
Other languages
German (de)
French (fr)
Other versions
EP1029781A2 (en
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.)
Nasyc Holding SA
Original Assignee
Nasyc Holding SA
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 Nasyc Holding SA filed Critical Nasyc Holding SA
Publication of EP1029781A2 publication Critical patent/EP1029781A2/en
Publication of EP1029781A3 publication Critical patent/EP1029781A3/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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

Landscapes

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

Abstract

Die Erfindung betrifft einen Verstellpropeller, insbesondere für Motor- und Sport-boote, dessen Propellerflügel mit in der Propellernabe (6) geführten Verstellstangen verstellbar sind, deren freie Enden an einem Joch (8) befestigt sind, das an einen doppelt wirkenden Hubzylinder angeschlossen ist. Um eine unerwünschte Verstellung der Steigung der Propellerflügel auf einfache Weise zu vermeiden und außerdem die Steigung der Propellerflügel feinfühliger einstellen zu können, soll das Joch (8) über ein selbsthemmendes Gewinde mit einer Verstellwelle (11) verbunden sein, an deren anderen Ende die drehfest geführte Kolbenstange (15) des Hubzylinders über ein nicht-selbsthemmendes Getriebe (13) angreift.

Figure 00000001
The invention relates to an adjustable propeller, in particular for motor and sports boats, the propeller blades of which are adjustable with adjusting rods guided in the propeller hub (6), the free ends of which are attached to a yoke (8) which is connected to a double-acting lifting cylinder. In order to avoid an undesired adjustment of the pitch of the propeller blades in a simple manner and also to be able to adjust the pitch of the propeller blades more sensitively, the yoke (8) should be connected via a self-locking thread to an adjusting shaft (11), at the other end of which the non-rotatably guided one Piston rod (15) of the lifting cylinder engages via a non-self-locking gear (13).
Figure 00000001
EP99122538A 1999-02-18 1999-11-12 Controllable pitch propeller, especially for watercraft Withdrawn EP1029781A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19906661A DE19906661C1 (en) 1999-02-18 1999-02-18 Variable pitch propeller for motor boats and sports boats has a yoke for the blade adjustment rods at the propeller hub moved by an adjustment rod in the propeller shaft shifted by the piston rod of a double-action cylinder
DE19906661 1999-02-18

Publications (2)

Publication Number Publication Date
EP1029781A2 EP1029781A2 (en) 2000-08-23
EP1029781A3 true EP1029781A3 (en) 2002-04-03

Family

ID=7897813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122538A Withdrawn EP1029781A3 (en) 1999-02-18 1999-11-12 Controllable pitch propeller, especially for watercraft

Country Status (3)

Country Link
US (1) US6287077B1 (en)
EP (1) EP1029781A3 (en)
DE (1) DE19906661C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003263373A1 (en) * 2003-09-01 2005-03-16 Nenad Fles Contra-rotating variable pitch propellers fitted on the strut
SE533903C2 (en) * 2009-01-07 2011-03-01 Morphic Technologies Ab Wind turbine unit including an emergency brake with two cooperating threaded parts
CA2921006C (en) * 2015-02-27 2017-07-18 Honda Motor Co., Ltd. Control apparatus for outboard motor
JP2021037828A (en) * 2019-09-03 2021-03-11 三菱重工業株式会社 Variable pitch propeller
CN111038660A (en) * 2019-12-22 2020-04-21 杭州前进齿轮箱集团股份有限公司 Blade rotating tool for adjustable propeller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR907184A (en) * 1943-08-14 1946-03-05 Sulzer Ag Control device for the orientation of the blades of marine propellers
US2501617A (en) * 1943-05-27 1950-03-21 Roesch Fritz Variable pitch propeller operating mechanism for marine propulsion plants
US5073734A (en) * 1989-10-30 1991-12-17 Constructions Electriques Du Centre Celduc Societe Anonyme Cooling device for a linear motor inductor
DE4231814C1 (en) * 1992-09-23 1994-01-20 Landolt Alexander Dr Variable pitch propeller, especially for pleasure boats

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065339B (en) *
DE878906C (en) * 1951-09-02 1953-06-08 Wilhelm Wels Adjustable pitch propeller
US2747676A (en) * 1952-04-23 1956-05-29 Gen Motors Corp Propeller mechanism
US2958382A (en) * 1954-04-20 1960-11-01 Gen Motors Corp Locking means for pitch changing motor
US2792064A (en) * 1954-08-27 1957-05-14 Gen Motors Corp Variable pitch propeller
US3092186A (en) * 1962-01-04 1963-06-04 James K Maclean Variable pitch propeller mechanism
DE3118230A1 (en) * 1981-05-08 1983-01-13 Gebr. Becker Kg, 2000 Wedel Controllable-pitch propeller and device for adjusting the blades
DE4000115A1 (en) * 1990-01-04 1991-07-11 Urs Morgenthaler BOAT DRIVE WITH AN ADJUSTING PROPELLER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501617A (en) * 1943-05-27 1950-03-21 Roesch Fritz Variable pitch propeller operating mechanism for marine propulsion plants
FR907184A (en) * 1943-08-14 1946-03-05 Sulzer Ag Control device for the orientation of the blades of marine propellers
US5073734A (en) * 1989-10-30 1991-12-17 Constructions Electriques Du Centre Celduc Societe Anonyme Cooling device for a linear motor inductor
DE4231814C1 (en) * 1992-09-23 1994-01-20 Landolt Alexander Dr Variable pitch propeller, especially for pleasure boats

Also Published As

Publication number Publication date
DE19906661C1 (en) 2000-06-29
US6287077B1 (en) 2001-09-11
EP1029781A2 (en) 2000-08-23

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