Reinforced airfoil shaped body

{
  "publication_number": "US2012273617A1",
  "country": "US",
  "kind": "A1",
  "title": "Reinforced airfoil shaped body",
  "abstract": "The present invention relates to an airfoil shaped body with a leading edge and a trailing edge extending along the longitudinal extension of the body and defining a profile chord, the airfoil shaped body comprising an airfoil shaped facing that forms the outer surface of the airfoil shaped body and surrounds an internal volume of the body, a distance member that is connected to the facing inside the body and extends from the facing and into the internal volume of the body, and at least one reinforcing member that operates in tension for reinforcing the facing against inward deflections and that is connected to the facing inside the internal volume of the body at the same side of the profile chord as the connection of the distance member to the facing and to the distance member at a distance from the facing.",
  "claims": [
    "1. An airfoil shaped body with a leading edge and a trailing edge extending along a longitudinal direction the airfoil shaped body and defining a profile chord, the airfoil shaped body comprising: an airfoil shaped facing that forms an outer surface of the airfoil shaped body and surrounds an internal volume of the airfoil shaped body, at least one reinforcing member that is connected to the airfoil shaped facing with a first connection inside the internal volume of the airfoil shaped body and extends transversal to the longitudinal direction of the airfoil shaped body, wherein the airfoil shaped body further has a distance member that is connected to the airfoil shaped facing at a substantially flat part of the airfoil shaped facing inside the internal volume of the airfoil shaped body at a same side of the profile chord as the first connection and at a lateral distance from the first connection and extends from the airfoil shaped facing and into the internal volume of the body, the at least one reinforcing member is connected to the distance member with a second connection at a distance from the airfoil shaped facing inside the internal volume of the airfoil shaped body and operates in tension for reinforcing the airfoil shaped facing against inward deflections, and the at least one reinforcing member is further connected to the airfoil shaped facing with a third connection at a side of the distance member opposite the first connection and on a same side of the profile chord as the connection of the distance member to the airfoil shaped facing. 2. An airfoil shaped body according to claim 1, wherein one of the at least one reinforcing member is connected to the airfoil shaped facing with the first connection and another one of the at least one reinforcing member is connected to the airfoil shaped facing with the third connection and is displaced along the longitudinal direction of the airfoil shaped body with relation to the one of the at least one reinforcing member with the first connection. 3. An airfoil shaped body according to claim 1, wherein the at least one reinforcing member comprises a plurality of elongated reinforcing members extending transversal to the longitudinal direction of the airfoil shaped body and positioned in spaced relationship along the longitudinal extension of the airfoil shaped body. 4. An airfoil shaped body according to claim 1, wherein the at least one reinforcing member is selected from the group of a wire, a rope, a thread, a fiber, and a web of fabric. 5. An airfoil shaped body according to claim 1, wherein the at least one reinforcing member also operates in compression for reinforcing the airfoil shaped facing against inward deflections. 6. An airfoil shaped body according to claim 5, wherein the at least one reinforcing member has the shape of an element selected from the group of a rod, a bar, a plate, a tube. 7. An airfoil shaped body according to claim 1, further comprising a girder extending inside the airfoil shaped body and along the longitudinal direction of the airfoil shaped body and that is connected to the airfoil shaped facing, and wherein the distance member forms part of the girder. 8. An airfoil shaped body according to claim 1, wherein a part of the airfoil shaped facing constitutes the distance member. 9. An airfoil shaped body according to claim 1, further comprising two girders extending inside the airfoil shaped body and along the longitudinal direction of the body and with a mutual distance perpendicular to the longitudinal direction of the body and that are connected to the airfoil shaped facing, and wherein the distance member is located between the two girders, and wherein the least one reinforcing member is connected to the airfoil shaped facing proximate respective connections of the girders to the airfoil shaped facing. 10. An airfoil shaped body according to claim 1, wherein the distance member includes a plurality of distance members. 11. An airfoil shaped body according to claim 1, wherein a space between the at least reinforcing member and the airfoil shaped facing is at least partly filled with a filler material. 12. An airfoil shaped body according to claim 1, wherein the at least one reinforcing member and a part of the airfoil shaped facing constitute a separate cap part. 13. A wind turbine with a blade that is an airfoil shaped body according to claim 1. 14. An aircraft with a wing that is an airfoil shaped body according to claim 1. 15. A method for manufacturing an airfoil shaped body, the airfoil shaped body having a leading edge and a trailing edge extending along a longitudinal direction the airfoil shaped body and defining a profile chord, the method comprising: providing at least a part of an airfoil shaped facing of the airfoil shaped body, providing a distance member, connecting the distance member to an internal surface of the airfoil shaped facing, providing at least one reinforcing member, connecting the at least one reinforcing member to the internal surface of the airfoil shaped facing at a distance from the distance member and at the same side of the profile chord as the connection of the distance member to the airfoil shaped facing, connecting the at least one reinforcing member to the distance member at a distance from the airfoil shaped facing, and connecting the at least one reinforcing member to the internal surface of the airfoil shaped facing at a distance from the distance member at a side opposite where the distance member is connected and at a same side of the profile chord as the connection of the distance member to the airfoil shaped facing. 16. A method according to claim 15, further comprising: pre-tensioning the reinforcing member with a desired amount of tension. 17. A method according to claim 15, further comprising: providing a filler material in a space between the at least one reinforcing member and the inner surface of the airfoil shaped facing. 18. A method according to claim 15, further comprising: providing at least one girder and connecting the girder to the internal surface of the airfoil shaped facing. 19. A method according to any of claim 15, wherein at least one of providing at least a part of an airfoil shaped facing, providing a distance member, and providing at least one reinforcing member includes building up layers of fiber materials."
  ],
  "cpc": [
    "F03D 1/065",
    "F05B 2280/6003",
    "F05B 2280/6013",
    "F05B 2280/702",
    "F05C 2253/04",
    "F05C 2253/16",
    "F05C 2253/22",
    "Y02E 10/72",
    "Y10T 29/49826",
    "Y10T 29/49863",
    "Y10T 428/24612"
  ],
  "assignees": [
    "JENSEN FIND MOELHOLT",
    "BLADENA APS"
  ],
  "filing_date": "2010-11-30",
  "publication_date": "2012-11-01",
  "priority_date": "2009-12-02",
  "application_number": "US-201013512656-A",
  "family_id": "42173345",
  "citations": [
    "DE706014C",
    "FR471195A",
    "FR644675A",
    "FR793334A",
    "GB367049A",
    "GB382979A",
    "GB871625A",
    "US2008245927A1",
    "US2010051752A1",
    "US2410609A",
    "US2430431A",
    "US4530197A",
    "US6974633B2",
    "US7954763B2",
    "US8454318B2",
    "US8485786B2",
    "US8490362B2",
    "US8632312B2",
    "US8961715B2"
  ]
}