Patents by Inventor Urs Bendel
Urs Bendel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150224721Abstract: An apparatus and method for producing a rotor blade spar cap for a rotor blade of a wind turbine. The apparatus includes a mold, which has a cavity-like depression in cross section, in which material for a rotor blade spar cap can be placed, and a sheet-like mold covering for sealing off the depression. The depression has side walls, an opening bounded by the side walls and a base area between the side walls. In accordance with the method, fiber material and/or fiber-reinforced material is placed in the depression of the mold such that the material finishes flush with the side walls with respect to the height of the rotor blade spar cap, the depression is sealed off by the sheet-like mold covering, the material is fused together to form the rotor blade spar cap and the rotor blade spar cap is removed from the mold.Type: ApplicationFiled: April 22, 2015Publication date: August 13, 2015Inventors: Urs Bendel, Lenz Simon Zeller, Enno Eyb, Tilman Richers, Jan-Peter Witthus
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Publication number: 20150204200Abstract: A composite fiber component for a rotor blade of a wind power plant including a first sandwich core and a second sandwich core arranged next to each other, each having an inside facing a rotor blade interior and an outside facing a rotor blade exterior. A first fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the outside of the second sandwich core. A second fiber-containing laminate layer is arranged on the outside of the first sandwich core and on the outside of the second sandwich core. And, a third fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the inside of the second sandwich core. Also disclosed is a rotor blade for a wind power plant having a composite fiber component as disclosed.Type: ApplicationFiled: March 31, 2015Publication date: July 23, 2015Inventors: Enno Eyb, Urs Bendel, Hendrik Mester
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Patent number: 8727731Abstract: The invention relates to a process for manufacturing a blade connection of a rotor blade for a wind energy system which comprises fastening elements for fastening the blade connection to a hub, which fastening elements are provided on a circular arc, preferably equidistant from each other. Furthermore, the invention relates to a blade connection and a fastening element for a blade connection. The invention is based on the problem of improving the fastening of a rotor blade on the hub of a wind energy system as well as improving the manufacture and/or making a suitable blade connection available. The invention solves this problem as regards the process in that fastening elements formed in pieces are arranged on the circular arc and spaced from each other with spacer elements.Type: GrantFiled: April 8, 2009Date of Patent: May 20, 2014Assignee: REpower Systems AGInventors: Urs Bendel, Markus Werner, Martin Knops
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Patent number: 8678765Abstract: A method for the production of a rotor blade (1) for a wind power plant, wherein the produced rotor blade (1) in its longitudinal extension, which extends from a rotor blade root (2) essentially to a rotor blade tip (3), has at least one area, in which the rotor blade has an aerodynamic blade section (4, 4?, 4?), which has a leading edge (5) and a trailing edge (6), which are connected via a suction side (7) and a pressure side (8) of the blade section (4, 4?, 4?), wherein at least a first and at least a second molded part (11, 12) manufactured in the longitudinal direction of the rotor blade (1) are provided for a suction side (7) and a pressure side (8) of the rotor blade (1), which are to be connected with each other in the areas of the leading edge (5) and the trailing edge (6). A corresponding rotor blade (1) for a wind power plant and a wind power plant with a corresponding rotor blade (1).Type: GrantFiled: October 29, 2010Date of Patent: March 25, 2014Assignee: Repower Systems SEInventors: Urs Bendel, Lenz Simon Zeller
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Publication number: 20130164144Abstract: A bulkhead (22) of a wind turbine (10) to be arranged on a rotor blade connection of a rotor blade (14), especially on a rotor hub (9). The bulkhead (22) has a core body (30). A layer (31, 32) of fiberglass-reinforced plastic (31, 32) is arranged on the core body (30) on both sides respectively and a metal layer body (33) is arranged on one side of the layer of fiberglass-reinforced plastic (31). A method for producing a bulkhead (22) of a wind turbine (9), which is arranged on a rotor blade connection of a rotor blade (14) and a use of a bulkhead (22) of a wind turbine (10).Type: ApplicationFiled: October 10, 2011Publication date: June 27, 2013Applicant: REPOWER SYSTEMS SEInventor: Urs Bendel
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Patent number: 8408875Abstract: A rotor blade attachment, in particular of a wind power plant, for the connection of a rotor blade with an attachment device, including a transverse pin and a connecting device, which can be brought together to establish an operative connection, wherein the connecting device defines a longitudinal axis. The rotor blade attachment is characterized in that the transverse pin in the direction of the longitudinal axis of the connecting device has a higher bending stiffness than transversally to the longitudinal axis. An alternative rotor blade attachment is characterized in that the transverse pins are arranged in at least two rows, wherein at least a first row is arranged closer to the blade-root-side end of the rotor blade than at least a second row.Type: GrantFiled: January 30, 2012Date of Patent: April 2, 2013Assignee: Repower Systems SEInventors: Peter Quell, Urs Bendel, Matthias Schubert, Carsten Eusterbarkey
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Publication number: 20120148404Abstract: A rotor blade attachment, in particular of a wind power plant, for the connection of a rotor blade with an attachment device, including a transverse pin and a connecting device, which can be brought together to establish an operative connection, wherein the connecting device defines a longitudinal axis. The rotor blade attachment is characterized in that the transverse pin in the direction of the longitudinal axis of the connecting device has a higher bending stiffness than transversally to the longitudinal axis. An alternative rotor blade attachment is characterized in that the transverse pins are arranged in at least two rows, wherein at least a first row is arranged closer to the blade-root-side end of the rotor blade than at least a second row.Type: ApplicationFiled: January 30, 2012Publication date: June 14, 2012Applicant: REPOWER SYSTEMS AGInventors: Peter Quell, Urs Bendel, Matthias Schubert, Carsten Eusterbarkey
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Patent number: 8133029Abstract: The invention relates to a rotor blade attachment (17), in particular of a wind power plant (1), for the connection of a rotor blade (5) with an attachment device (4), including a transverse pin (20, 20?) and a connecting device (13, 21), which can be brought together to establish an operative connection, wherein the connecting device (13, 21) defines a longitudinal axis. The rotor blade attachment (17) is characterized in that the transverse pin (20, 21?) in the direction of the longitudinal axis of the connecting device has a higher bending stiffness than transversally to the longitudinal axis (18). An alternative rotor blade attachment (17) is characterized in that the transverse pins (20, 20?) are arranged in at least two rows (33, 34), wherein at least a first row (33) is arranged closer to the blade-root-side end (19) of the rotor blade (5) than at least a second row (34).Type: GrantFiled: April 20, 2007Date of Patent: March 13, 2012Assignee: Repower Systems AGInventors: Peter Quell, Urs Bendel, Matthias Schubert, Carsten Eusterbarkey
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Patent number: 8096759Abstract: A bulkhead for a wind turbine is provided. The wind turbine includes a rotor hub and a rotor blade operatively attached to the rotor hub. The rotor blade includes a blade root. The bulkhead includes multiple access openings with closable hatches and is arranged in or on the blade root or in the area between the blade root and the rotor hub.Type: GrantFiled: November 20, 2007Date of Patent: January 17, 2012Assignee: Repower AGInventors: Urs Bendel, Carsten Eusterbarkey, Peter Quell
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Patent number: 8052394Abstract: The invention relates to a rotor blade (60) of a wind energy plant with a top side (suction side) and a bottom side (pressure side) wherein profiles (21, 22, 23, 24, 25) with a front edge and a back edge (62) in cross-section are designed along a longitudinal axis between a rotor blade root and a rotor blade tip, one designed-based direction of air inflow (31, 32, 33, 34, 35) is predetermined for each profile (21, 22, 23, 24, 25) and the profiles (21, 22, 23, 24, 25) in the outer area facing the rotor blade tip are designed with a relative thickness of less than 30%.Type: GrantFiled: March 28, 2007Date of Patent: November 8, 2011Assignee: Repower Systems AGInventors: Marc Petsche, Urs Bendel
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Publication number: 20110211971Abstract: A rotor blade (1) for a wind power plant that extends from a rotor blade root (2) substantially to a rotor blade tip (3), including a one-part or multi-part shell (10, 10?, 14) that is produced at least partially from a fiber reinforced composite material, and at least one belt (9-9??) that is disposed in the rotor blade (1) substantially in the direction of a longitudinal extension of the rotor blade (1), wherein the at least one belt (9-9??) has layers composed of a fiber reinforced composite material having fibers aligned unidirectionally in the direction of a longitudinal extension of the belt (9-9??). Further, a wind power plant and a method for the production of a rotor blade (1) for a wind power plant is described.Type: ApplicationFiled: February 22, 2011Publication date: September 1, 2011Applicant: REPOWER SYSTEMS AGInventors: Urs Bendel, Enno Eyb
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Publication number: 20110142679Abstract: A rotor blade and a method and a manufacturing mold for the production of a rotor blade for a wind turbine, which extends longitudinally in the operational state from a blade root area to the connection to a rotor hub of the wind turbine and which is divided into at least two segments for its production, wherein at least one subdivision is provided approximately transverse to its longitudinal extension between the blade root area and the blade tip. The method facilitates and shortens the production of the rotor blade, in particular for a series production and to still provide the completed rotor blade as a familiar uniform rotor blade. In the method, the at least two segments, preferably after they have been at least partially produced or partially produced mainly parallel in time, are interconnected in an integration device.Type: ApplicationFiled: June 10, 2009Publication date: June 16, 2011Applicant: REPOWER SYSTEMS AGInventors: Urs Bendel, Enno Eyb, Martin Knops
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Publication number: 20110135486Abstract: A belt (20) of a rotor blade (10) of a wind power plant, that includes a plurality of fiber-reinforced individual layers, which are interconnected by a resin. At least one fiber-reinforced individual layer of the belt has a longitudinal stiffness of more than 50,000 N/mm with a thickness of more than 0.9 mm.Type: ApplicationFiled: December 7, 2010Publication date: June 9, 2011Applicant: REPOWER SYSTEMS AGInventor: Urs Bendel
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Publication number: 20110103963Abstract: The invention relates to a method for the production of a rotor blade (1) for a wind power plant, wherein the produced rotor blade (1) in its longitudinal extension, which extends from a rotor blade root (2) essentially to a rotor blade tip (3), has at least one area, in which the rotor blade has an aerodynamic blade section (4, 4?, 4?), which has a leading edge (5) and a trailing edge (6), which are connected via a suction side (7) and a pressure side (8) of the blade section (4, 4?, 4?), wherein at least a first and at least a second molded part (11, 12) manufactured in the longitudinal direction of the rotor blade (1) are provided for a suction side (7) and a pressure side (8) of the rotor blade (1), which are to be connected with each other in the areas of the leading edge (5) and the trailing edge (6). The invention also relates to a corresponding rotor blade (1) for a wind power plant and a wind power plant with a corresponding rotor blade (1).Type: ApplicationFiled: October 29, 2010Publication date: May 5, 2011Applicant: REPOWER SYSTEMS AGInventors: Urs Bendel, Lenz Simon Zeller
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Publication number: 20110044817Abstract: The invention relates to a process for manufacturing a blade connection of a rotor blade for a wind energy system which comprises fastening elements for fastening the blade connection to a hub, which fastening elements are provided on a circular arc, preferably equidistant from each other. Furthermore, the invention relates to a blade connection and a fastening element for a blade connection. The invention is based on the problem of improving the fastening of a rotor blade on the hub of a wind energy system as well as improving the manufacture and/or making a suitable blade connection available. The invention solves this problem as regards the process in that fastening elements formed in pieces are arranged on the circular arc and spaced from each other with spacer elements.Type: ApplicationFiled: April 29, 2008Publication date: February 24, 2011Inventors: Urs Bendel, Markus Werner, Martin Knops
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Publication number: 20090274559Abstract: The invention relates to a rotor blade (60) of a wind energy plant with a top side (suction side) and a bottom side (pressure side) wherein profiles (21, 22, 23, 24, 25) with a front edge and a back edge (62) in cross-section are designed along a longitudinal axis between a rotor blade root and a rotor blade tip, one designed-based direction of air inflow (31, 32, 33, 34, 35) is predetermined for each profile (21, 22, 23, 24, 25) and the profiles (21, 22, 23, 24, 25) in the outer area facing the rotor blade tip are designed with a relative thickness of less than 30%.Type: ApplicationFiled: March 28, 2007Publication date: November 5, 2009Applicant: REPOWER SYSTEMS AGInventors: Marc Petsche, Urs Bendel
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Publication number: 20090263250Abstract: The invention relates to a rotor blade attachment (17), in particular of a wind power plant (1), for the connection of a rotor blade (5) with an attachment device (4), including a transverse pin (20, 20?) and a connecting device (13, 21), which can be brought together to establish an operative connection, wherein the connecting device (13, 21) defines a longitudinal axis. The rotor blade attachment (17) is characterized in that the transverse pin (20, 21?) in the direction of the longitudinal axis of the connecting device has a higher bending stiffness than transversally to the longitudinal axis (18). An alternative rotor blade attachment (17) is characterized in that the transverse pins (20, 20?) are arranged in at least two rows (33, 34), wherein at least a first row (33) is arranged closer to the blade-root-side end (19) of the rotor blade (5) than at least a second row (34).Type: ApplicationFiled: April 20, 2007Publication date: October 22, 2009Applicant: REPOWER SYSTEMS AGInventors: Peter Quell, Urs Bendel, Matthias Schubert, Carsten Eusterbarkey
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Publication number: 20080118365Abstract: A bulkhead for a wind turbine is provided. The wind turbine includes a rotor hub and a rotor blade operatively attached to the rotor hub. The rotor blade includes a blade root. The bulkhead includes multiple access openings with closable hatches and is arranged in or on the blade root or in the area between the blade root and the rotor hub.Type: ApplicationFiled: November 20, 2007Publication date: May 22, 2008Applicant: REPOWER SYSTEMS AGInventors: Urs Bendel, Carsten Eusterbarkey, Peter Quell