SE523311C2 - Boat propeller, has propeller blades covered on both sides with films having outer layer of polyfluoroethylene - Google Patents

Boat propeller, has propeller blades covered on both sides with films having outer layer of polyfluoroethylene

Info

Publication number
SE523311C2
SE523311C2 SE0301873A SE0301873A SE523311C2 SE 523311 C2 SE523311 C2 SE 523311C2 SE 0301873 A SE0301873 A SE 0301873A SE 0301873 A SE0301873 A SE 0301873A SE 523311 C2 SE523311 C2 SE 523311C2
Authority
SE
Sweden
Prior art keywords
propeller
foils
propeller blades
sides
polyfluoroethylene
Prior art date
Application number
SE0301873A
Other languages
Swedish (sv)
Other versions
SE0301873D0 (en
SE0301873L (en
Inventor
Ragnar Winberg
Original Assignee
Ragnar Winberg
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 Ragnar Winberg filed Critical Ragnar Winberg
Priority to SE0301873A priority Critical patent/SE0301873L/en
Publication of SE0301873D0 publication Critical patent/SE0301873D0/en
Priority to PCT/SE2003/002092 priority patent/WO2004113159A1/en
Priority to AU2003292903A priority patent/AU2003292903A1/en
Publication of SE523311C2 publication Critical patent/SE523311C2/en
Publication of SE0301873L publication Critical patent/SE0301873L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Films (8, 9, 13, 14) with an outer layer of polyfluoroethylene are bonded to both sides of the propeller blades. A boat propeller has a film (8, 9, 13, 14) glued to both sides of each propeller blade (2-4). The outside of the film comprises a smooth, closed layer of polyfluoroethylene.

Description

nano; c | o Q en Uppfmningen skall i det följande närmare förklaras med hjälp av figurer där utföringsexempel visas. Av tydlighetsskäl har vissa mått överdiivits. nano; c | The invention will be explained in more detail below with the aid of figures in which exemplary embodiments are shown. For the sake of clarity, some measures have been exaggerated.

Figur 1 visar en trebladig propeller sedd akterifrån.Figure 1 shows a three-bladed propeller seen from the stern.

Figur 2 visar i förstoring ett avsnitt A-A från figur 1.Figure 2 shows in magnification a section A-A from Figure 1.

Figur 3 visar i förstoring ett avsnitt B-B från figur 1.Figure 3 shows in magnification a section B-B from figure 1.

På figurerna betecknas propellems nav med l och de tre propellerbladen med 2,3 och 4. Alla propellerbladen kan vara gjutna tillsammans med navet eller så kan varje blad vara fastsatt vid navet med skruvar. Även kan bladen vara ställbart fastsatta vid navet. Propellerbladen kan vara av godtyckligt material t.ex. stål, brons eller någon aluminiumlegering. Propellerbladet 2 är utan anordning d.v.s. som ett traditionellt propellerblad. Detta blads ytterkanter liksom ytterkantema på de andra bladen betecknas med 5,6 och 7. På blad 3 har fastlimmats foliema 8 och 9, vars ytterkanter når utanför bladets kanter 5,6 och 7. Foliema har en gemensain ytterkant 10 och de är fastsatta i varandra i området 1 l mellan bladets ytterkanter och foliemas ytterkanter 10.In the figures, the hub of the propeller is denoted by 1 and the three propeller blades by 2,3 and 4. All the propeller blades can be cast together with the hub or each blade can be attached to the hub with screws. The blades can also be adjustably attached to the hub. The propeller blades can be of any material e.g. steel, bronze or any aluminum alloy. The propeller blade 2 is without device, i.e. as a traditional propeller blade. The outer edges of this blade as well as the outer edges of the other leaves are denoted by 5.6 and 7. The sheets 8 and 9 have been glued on blade 3, the outer edges of which reach outside the edges 5,6 and 7 of the blade. each other in the area 1 l between the outer edges of the blade and the outer edges 10 of the foils.

Foliens kant mot navet betecknas med 12. Eftersom bladen är tjockare in mot navet måste foliema vara något töjbara. På propellerbladet 4 har fastsatts foliema 13 och 14, vars ytterkanter 15 och 16 inte när ända ut till bladets ytterkant 7. En U-formad list 17 omsluter bladets ytterkant 7 och de båda foliemas ytterkanter 15 och 16. Listen är fastsatt vid bladets ytterområde medelst lim 18. Foliemas närmast navet belägna kanter 19 är på varje sida av bladet täckta av lister eller liknande 20, vilka är fastsatta i bladet genom limning eller medelst skruvar. annu: 523 511 ' Foliema har en yttersida av polyfluoreten varav det finns varianter benämnda PTFE, PFEP, PCTFE och PETFE. Ett vanligt handelsnamn för PTFE (polytetrafluoreten) är Teflon. Folíema kan vara massiva och enbart bestå av polyfluoreten. De kan också innehålla fylhnedel. Deras insidor kan vara etsade och försedda med självhäftande lim eller så kan lim bestrykas på deras insidor eller på propellerbladen omedelbart innan foliema fasttryckes.The edge of the foil towards the hub is denoted by 12. Since the blades are thicker towards the hub, the foils must be slightly stretchable. The foils 13 and 14 are attached to the propeller blade 4, the outer edges 15 and 16 of which do not reach all the way to the outer edge 7 of the blade. glue 18. The edges 19 of the foils closest to the hub are covered on each side of the blade by strips or the like 20, which are fixed in the blade by gluing or by means of screws. annu: 523 511 'The foils have an outer surface of polyurethane of which there are variants called PTFE, PFEP, PCTFE and PETFE. A common trade name for PTFE (polytetra fl uoretene) is Te fl on. The films can be solid and consist only of polyurethane. They may also contain filler. Their insides may be etched and provided with self-adhesive glue or glue may be coated on their insides or on the propeller blades immediately before the foils are pressed.

Folierna kan istället för att vara etsade ha ett fiberskikt eller en töjbar väv på sin insida som lim kan fasta. mot. Det är möjligt att utgå från en folie som iiineliåller en väv och där foliens båda sidor har en slät yta av polyfluoreten.Instead of being etched, the foils can have a ikt top layer or an extensible fabric on their inside to which glue can adhere. against. It is possible to start from a foil which contains a fabric and where both sides of the foil have a smooth surface of polyurethane.

På den yta som senare skall limmas kan ytlagret bortslipas så att en del av väven blir blottlagd medan andra delar av väven ingår i den kvarvarande folien. Lämpliga lim kan vara polyuretanlim, epoxilim eller smältlim. Det är viktigt att folienias kantområden är så starkt fastsatta vid bladen att de inte kan fläkas upp.On the surface to be glued later, the surface layer can be ground away so that a part of the fabric is exposed while other parts of the fabric are included in the remaining foil. Suitable adhesives can be polyurethane adhesives, epoxy adhesives or hot melt adhesives. It is important that the edge areas of the foils are so strongly attached to the leaves that they cannot be upp raised.

Claims (1)

1. I »anno Patentkrav Anordning vid fartygspropellrar kännetecknad av, att på varje propel- lerblads båda sidor har fastlimmats en folie (8,9,13,l4), vars yttersida har en tät och slät yta av polyfluoreten. Anordning enligt patentkrav l, kännetecknad av, att U-fonnade material (17) omsluter propellerbladens kanter (5,6,7) och de på varje sida om propellerbladen fastsatta foliemas ytterkanter (l 5 , 16). Anordning enligt patentkrav 2, kännetecknad av, att det U-formade materialet (17) är fastsknivat i propellerbladens kantområden. Anordning enligt patentkrav l, kännetecknad av, att foliema (8,9) når utanför propellerbladens kanter (5,6,7) och att foliema därutariför är sammansatta. Anordning enligt patentkrav l, kännetecknar! av, att foliema (8,9,13,l4) är töjbara. Anordning enligt något tidigare patentkrav, kännetecknad av, att foli- ema (8,9,13,l4) är etsade på sina insidor. Anordning enligt något tidigare patentkrav, kännetecknad av, att foli- ema (8,9,13,l4) på sina insidor har ett fiberskikt. ' 523 311 .-:'ï. o u u . en 8 Anordning enligt något tidigare patentkrav, kännetecknad av, att foli- ema (8,9,13,14) på sina insídor har en töjbar väv. 9 Anordning enligt något tidigare patentkrav, kännetecknad av, att foli-ens mot navet vända kant (19) finns en remsa eller liknande (20), vilken är fastsatt i propellerbladet. a nano»I »anno Patent claim Device for ship propellers, characterized in that a foil (8, 9, 13, 14) is glued to both sides of each propeller blade, the outer side of which has a dense and smooth surface of polyurethane. Device according to Claim 1, characterized in that U-shaped material (17) encloses the edges (5, 6, 7) of the propeller blades and the outer edges (1 5, 16) of the foils fastened to each side of the propeller blades. Device according to Claim 2, characterized in that the U-shaped material (17) is cut into the edge areas of the propeller blades. Device according to claim 1, characterized in that the foils (8,9) reach outside the edges (5,6,7) of the propeller blades and that the foils are assembled therefrom. Device according to claim 1, characterized in! that the foils (8, 9, 13, 14) are extensible. Device according to one of the preceding claims, characterized in that the foils (8, 9, 13, 14) are etched on their insides. Device according to one of the preceding claims, characterized in that the foils (8, 9, 13, 14) have a surface layer on their insides. '523 311 .-:' ï. o u u. A device according to any one of the preceding claims, characterized in that the foils (8,9,13,14) have an extensible fabric on their insides. Device according to one of the preceding claims, characterized in that the edge (19) facing the hub has a strip or the like (20) which is fixed in the propeller blade. a nano »
SE0301873A 2003-06-26 2003-06-26 Device for ship propellers SE0301873L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0301873A SE0301873L (en) 2003-06-26 2003-06-26 Device for ship propellers
PCT/SE2003/002092 WO2004113159A1 (en) 2003-06-26 2003-12-30 Device for a ship propeller
AU2003292903A AU2003292903A1 (en) 2003-06-26 2003-12-30 Device for a ship propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0301873A SE0301873L (en) 2003-06-26 2003-06-26 Device for ship propellers

Publications (3)

Publication Number Publication Date
SE0301873D0 SE0301873D0 (en) 2003-06-26
SE523311C2 true SE523311C2 (en) 2004-04-13
SE0301873L SE0301873L (en) 2004-04-13

Family

ID=27656608

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0301873A SE0301873L (en) 2003-06-26 2003-06-26 Device for ship propellers

Country Status (3)

Country Link
AU (1) AU2003292903A1 (en)
SE (1) SE0301873L (en)
WO (1) WO2004113159A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008213740B2 (en) * 2007-02-08 2013-02-07 Veem Ltd Marine propeller pitch adjustment means
AU2008213741B2 (en) * 2007-02-09 2013-02-14 Veem Ltd Marine propeller coating

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB803853A (en) * 1956-03-06 1958-11-05 Bent Gustav Andersen Improvements in or relating to ships' propellers
NL8006010A (en) * 1980-11-03 1982-06-01 Cruson Patents Nv Rotor rotating rapidly in liq. - esp. ship's propeller, coated with polymer, avoiding wear due to cavitation

Also Published As

Publication number Publication date
WO2004113159A1 (en) 2004-12-29
SE0301873D0 (en) 2003-06-26
SE0301873L (en) 2004-04-13
AU2003292903A1 (en) 2005-01-04

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