EP2217486A1 - Bootpropeller mit verstellbaren, in die wasseroberfläche eintauchenden propellerflügeln - Google Patents

Bootpropeller mit verstellbaren, in die wasseroberfläche eintauchenden propellerflügeln

Info

Publication number
EP2217486A1
EP2217486A1 EP08767242A EP08767242A EP2217486A1 EP 2217486 A1 EP2217486 A1 EP 2217486A1 EP 08767242 A EP08767242 A EP 08767242A EP 08767242 A EP08767242 A EP 08767242A EP 2217486 A1 EP2217486 A1 EP 2217486A1
Authority
EP
European Patent Office
Prior art keywords
propeller
propeller blade
blade carriers
carriers
blade
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Withdrawn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
EP08767242A
Other languages
English (en)
French (fr)
Other versions
EP2217486A4 (de
Inventor
Torbjörn Eriksson
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.)
Stormfageln AB
Original Assignee
Stormfageln AB
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 Stormfageln AB filed Critical Stormfageln AB
Publication of EP2217486A1 publication Critical patent/EP2217486A1/de
Publication of EP2217486A4 publication Critical patent/EP2217486A4/de
Withdrawn legal-status Critical Current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
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary
    • B63H3/04—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable

Definitions

  • the present invention relates to a boat propeller hub for a boat propeller having surface-cutting propeller blades, comprising a hub housing, which supports at least two essentially diametrically opposed propeller blade carriers.
  • the object of the present invention is in general to provide a propeller hub of the type stated in the introduction, which is specially tailored to propellers for fast boats having engines with high power and high maximum torque, for example turbo diesels, and which eliminates the need to use a high-pressure turbocharger or a mechanical compressor serially connected to the turbocompressor, as is nowadays required in turbocharged engines connected to fixed-blade propellers to raise sufficient charge pressure and torque at low revs to be able to accelerate the boat to planing speed.
  • the object is to provide a propeller hub of this type, having a blade resetting mechanism which, over a long operating period, withstands the loads to which it is subjected during use, together with surface-cutting propeller blades and high-power and high-torque engines.
  • a further object is here to provide a propeller hub for adjustable surface- cutting propeller blades, which is specially configured to be able to bear and regulate a large number of adjustable propeller blades, for example as many as ten blades or more on larger vessels.
  • the hub housing in its peripheral limit surface, has circular openings, in which the propeller blade carriers are rotatably mounted in bearing races in the openings and to which the radially inner portion of the propeller blades can be connected, and that the propeller blade carriers are rotatable by means of an elongated blade resetting element, which is axially displaceable in a hollow shaft connected to the hub housing and by means of which the said propeller blade carriers can be rotated relative to the hub housing via a lever and link system connected to the blade resetting element and to the propeller blade carriers.
  • the blades when the boat is started from stationary, can be set at a small pitch, so that the engine speed rapidly reaches a speed at which even a low-pressure turbocharger produces sufficient charge pressure to yield an engine torque which is enough, when the pitch is subsequently successively increased, to accelerate the boat to planing speed.
  • the hub housing supports at least two pairs of propeller blades which are diametrically opposed in pairs.
  • An annular element can mutually connect all the propeller blade carriers in such a way that the rotary motion of the propeller blade carriers connected to the said blade resetting element is converted into rotary motion of the other propeller blade carriers via the annular element.
  • the annular element may connect the propeller blade carriers via articulated connecting members.
  • Fig.1 shows a diagrammatic, partially cut-open perspective view of an embodiment of a propeller hub according to the invention, having two propeller blades and mounted on a drive shaft,
  • Fig. 2 shows a perspective view of the link and lever mechanism of the hub in Fig. 1, in an embodiment for five pairs of propeller blades, and
  • Fig. 3 shows a perspective detailed view of a part of the link mechanism in Fig. 1 and 2.
  • the propeller hub comprises a hub housing 1 consisting of a cylindrical drum 2, a front conical cap 3 and a rear (not shown) cap intended to be screwed to the rear edge face 4 of the drum.
  • the hub housing 1 is non-rotatably fixed via the conical cap 3 to a drive shaft in the form of a hollow shaft 5.
  • a tubular slide 6 is mounted in an axially displaceable manner.
  • the drum 2 of the hub housing is in this case configured with ten peripherally evenly distributed circular openings 7, the edge faces 8 of which form bearing surfaces for cylindrical propeller blade carriers 9 rotatably mounted in the openings 7.
  • Fig. 1 for the sake of simplification, only two propeller blade carriers 9 for a pair of diametrically opposed propeller blades 10 are shown.
  • a shaft 11 (half-shown in Fig. 1) extends diametrically through the drum 2 and is connected at its ends to the inner side of the drum.
  • two sleeves 12 (one shown in Fig. 1) are rotatably mounted on the shaft 11 .
  • a lever 13 is rigidly connected to each sleeve 12. As can be seen from Fig. 2, the levers are oppositely directed to one another.
  • the sleeves 12 are, in turn, non-rotatably connected to one each of the two diametrically opposed propeller blade carriers 9.
  • the shaft 11 is thus rotatably connected to the inner side of the drum through the sleeves 12 and the propeller blade carriers 9.
  • the opposing propeller blade carriers 9 will be rotated in their openings 7 in the drum via the link arms 14 and the levers 13. Since the levers 13 are oppositely directed, the two diametrically opposed propeller blade carriers 9 with associated propellers 10 will be rotated in opposite directions.
  • a complete hub housing is shown, having a lever and link mechanism for five pairs of propellers.
  • Fig. 3 shows a perspective detailed view of a part of the link mechanism.
  • To each propeller blade carrier 9 is screwed one end of a link arrangement 15, the other end of which is articulately connected via a bushing 16 to an annular element 17.
  • the link arrangement 15 consists of two legs 18 and 19, connected to one another in a V-shape, of which the leg 19 is screwed to the leg 18 and consists of two parts 19a and 19b, which are connected to one another by means of a threaded joint with locking nut 19c and thereby allow length adjustment and exact adaptation of the length of the leg 19 to the length of the leg 18.
  • the leg 18 is adjusted with the elements 19e, 19f.
  • the annular element 17 is provided on its outer side with guide lugs 20, which run up against an annular, concentrically surrounding guide rail 21 for guiding the annular element 17 during its rotation.

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)
  • Harvester Elements (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP08767242A 2007-06-26 2008-06-25 Bootpropeller mit verstellbaren, in die wasseroberfläche eintauchenden propellerflügeln Withdrawn EP2217486A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0701543A SE532866C2 (sv) 2007-06-26 2007-06-26 Båtpropellernav för en båtpropeller med ytskärande propellerblad
PCT/SE2008/050776 WO2009002265A1 (en) 2007-06-26 2008-06-25 Boat propeller having adjustable surface cutting propeller blades

Publications (2)

Publication Number Publication Date
EP2217486A1 true EP2217486A1 (de) 2010-08-18
EP2217486A4 EP2217486A4 (de) 2011-03-23

Family

ID=40185887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08767242A Withdrawn EP2217486A4 (de) 2007-06-26 2008-06-25 Bootpropeller mit verstellbaren, in die wasseroberfläche eintauchenden propellerflügeln

Country Status (3)

Country Link
EP (1) EP2217486A4 (de)
SE (1) SE532866C2 (de)
WO (1) WO2009002265A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1869280A (en) * 1931-06-16 1932-07-26 Joseph A Roemisch Controllable pitch propeller
US2527112A (en) * 1948-02-24 1950-10-24 Beuford N Willis Controllable pitch propeller
DE844721C (de) * 1949-11-29 1952-07-24 Eugen Reintjes Vorrichtung zum Verstellen der Fluegel einer Schiffsschraube
US3148735A (en) * 1964-05-12 1964-09-15 Donald L Miller Variable pitch propeller for small boats
EP1775213A2 (de) * 2005-10-12 2007-04-18 Hamilton Sundstrand Corporation Blattverstellsteuerung einer Luftschraube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473463A1 (fr) * 1979-10-25 1981-07-17 Milloux Maurice Propulseur a helice pour bateaux
US5102301A (en) * 1988-03-28 1992-04-07 Morrison Douglas M Variable pitch propeller blades, hub and drive and adjusting mechanism therefor
GB9802570D0 (en) * 1998-02-07 1998-04-01 Duncan Ian J Propulsion system
WO2001047770A1 (en) * 1999-12-28 2001-07-05 Fles Nenad Partially submerged controllable pitch propeller fitted to a transom contoured thereto
EP1900636A1 (de) * 2006-09-15 2008-03-19 Yellowfin Limited Schiffsantrieb und Ausführungseinzelheiten hierfür

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1869280A (en) * 1931-06-16 1932-07-26 Joseph A Roemisch Controllable pitch propeller
US2527112A (en) * 1948-02-24 1950-10-24 Beuford N Willis Controllable pitch propeller
DE844721C (de) * 1949-11-29 1952-07-24 Eugen Reintjes Vorrichtung zum Verstellen der Fluegel einer Schiffsschraube
US3148735A (en) * 1964-05-12 1964-09-15 Donald L Miller Variable pitch propeller for small boats
EP1775213A2 (de) * 2005-10-12 2007-04-18 Hamilton Sundstrand Corporation Blattverstellsteuerung einer Luftschraube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009002265A1 *

Also Published As

Publication number Publication date
WO2009002265A1 (en) 2008-12-31
SE0701543L (sv) 2008-12-27
EP2217486A4 (de) 2011-03-23
SE532866C2 (sv) 2010-04-27

Similar Documents

Publication Publication Date Title
RU2522752C2 (ru) Стационарное устройство исполнительного механизма для регулирования шага лопастей вентилятора в турбовинтовом двигателе
US9115697B2 (en) Fluid interacting device
RU2523515C2 (ru) Устройство с подвижным силовым цилиндром для управления ориентацией лопатками вентилятора турбовинтового двигателя
US5096381A (en) Regulating device for maintaining constant the rotary speed in turbines
WO2012146752A2 (en) Rotational support of a wind turbine blade
US8936438B2 (en) Rotor blade pitch adjusting device and turbomachine containing the same
US8932018B2 (en) Counterweight-based device for controlling the orientation of fan blades of a turboprop engine
US11274676B2 (en) Fan module with variable-pitch blades for a turbine engine
US10479483B2 (en) Pitch control assembly and propeller assembly and method of adjusting pitch
US5286166A (en) Automatic centrifugal force variable pitch propeller
RU2527919C2 (ru) Устройство регулирования шага лопастей ветрогенератора
CA2934614C (en) Hub assembly and propeller assemblies
US9677408B2 (en) System for controlling the pitch of the propeller blades of a turbomachine, and a turbomachine with a propeller for an aircraft with such a system
EP2546517B1 (de) Windturbinenrotor
US6158960A (en) Propeller hub with self-adjusting pitch mechanism
JP2768827B2 (ja) 回転翼航空機用ピッチ制御システムにおける動力学的短縮効果の補正装置および方法
CN201140789Y (zh) 可调距螺旋桨装置
WO2009002265A1 (en) Boat propeller having adjustable surface cutting propeller blades
CN113247240A (zh) 一种无人直升机尾桨桨距调节操纵结构
EP0229124A1 (de) Faltbare und regelbare propeller.
US11124287B2 (en) Fan module with variable-pitch blades for a turbomachine
US6287077B1 (en) Adjustable-pitch boat propeller
US2135190A (en) Aeronautical propeller
US10473111B2 (en) Variable pitch fan for a gas turbine engine
WO2005021373A1 (en) Contra rotating variable pitch propellers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100326

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: ERIKSSON, TORBJOERN

A4 Supplementary search report drawn up and despatched

Effective date: 20110218

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110920