Patents by Inventor Dirk Strasser
Dirk Strasser 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: 20220341398Abstract: An arrangement includes a transmission, a pitch tube, and a fixation device configured to affix the pitch tube in the transmission. The fixation device is electrically insulated from the pitch tube. The pitch tube can be axially movable relative to the fixation device. The pitch tube can be fixed in a shaft or a rotatably-mounted planet carrier of the transmission by the fixation device.Type: ApplicationFiled: August 17, 2020Publication date: October 27, 2022Inventors: Dirk STRASSER, Dietmar WEIST, Deyan STOYANOV, Ralf SPERLICH
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Patent number: 11293542Abstract: A transmission housing includes a first housing half forming a first sealing surface and a first lubricant line, and a second housing half forming a second sealing surface and a second lubricant line. The first sealing surface and the second sealing surface seal an internal space in relation to an environment. An opening of the first lubricant line and an opening of the second lubricant line are fluidically connected to one another. The first sealing surface has a first groove and the second sealing surface has a second groove. The first groove and the second groove together form a third lubricant line. The third lubricant line runs between the opening of the first lubricant line into the first sealing surface and the environment of the transmission housing and between the opening of the second lubricant line into the second sealing surface and the environment of the transmission housing.Type: GrantFiled: January 26, 2017Date of Patent: April 5, 2022Assignees: ZF FRIEDRICHSHAFEN AG, ZF WIND POWER ANTWERPEN N.V.Inventors: Ralf Sperlich, Dirk Strasser, Joerg Muench
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Publication number: 20210148452Abstract: A transmission housing includes a first housing half forming a first sealing surface and a first lubricant line, and a second housing half forming a second sealing surface and a second lubricant line. The first sealing surface and the second sealing surface seal an internal space in relation to an environment. An opening of the first lubricant line and an opening of the second lubricant line are fluidically connected to one another. The first sealing surface has a first groove and the second sealing surface has a second groove. The first groove and the second groove together form a third lubricant line. The third lubricant line runs between the opening of the first lubricant line into the first sealing surface and the environment of the transmission housing and between the opening of the second lubricant line into the second sealing surface and the environment of the transmission housing.Type: ApplicationFiled: January 26, 2017Publication date: May 20, 2021Inventors: Ralf SPERLICH, Dirk STRASSER, Joerg MUENCH
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Patent number: 10969002Abstract: An assembly includes a first planetary stage, a second planetary stage, and at least one retainer plate. The first planetary stage has a planet carrier and the second planetary stage has a ring gear. The planet carrier and the ring gear are configured to be rotated about a common axis of rotation. The retainer plate is attached to the ring gear and engages in a groove in the planet carrier. The groove and the axis of rotation are at least partially skewed to each other. The retainer plate is arranged at least partially on a first side of a first plane and on a first side of a second plane. The first plane and the second plane intersect along the axis of rotation. All planet bolts fixed in the planet carrier each lie on a second side of the first plane and/or the second plane.Type: GrantFiled: November 3, 2017Date of Patent: April 6, 2021Assignees: ZF Friedrichshafen AG, ZF Wind Power Antwerpen N.V.Inventors: Ralf Sperlich, Joerg Muench, Dirk Strasser
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Patent number: 10935004Abstract: A pitch tube includes a first tube part and a second tube part. The first tube part and the second tube part are detachably connected to each other.Type: GrantFiled: January 26, 2017Date of Patent: March 2, 2021Assignees: ZF Friedrichshafen AG, ZF Wind Power Antwerpen N.V.Inventors: Steffen Fischer, Dirk Strasser
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Patent number: 10746285Abstract: A planetary carrier for a gear stage of a planetary gearset includes at least one planetary pin that is disposed in a rotationally fixed manner in the planetary carrier, and a pair of tapered roller bearings that are disposed on the planetary pin supporting a planet gear. The planetary pin is fastened by a pin screw connection, which comprises a pin screw and a nut, to the planetary carrier. The tapered roller bearings are clamped against each other between the planetary carrier and the planet pin and are axially pretensioned by the pin screw connection.Type: GrantFiled: November 22, 2016Date of Patent: August 18, 2020Assignee: ZF Friedrichshafen AGInventors: Joerg Muench, Dirk Strasser, Ralf Sperlich
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Publication number: 20200056679Abstract: An assembly includes a first planetary stage, a second planetary stage, and at least one retainer plate. The first planetary stage has a planet carrier and the second planetary stage has a ring gear. The planet carrier and the ring gear are configured to be rotated about a common axis of rotation. The retainer plate is attached to the ring gear and engages in a groove in the planet carrier. The groove and the axis of rotation are at least partially skewed to each other. The retainer plate is arranged at least partially on a first side of a first plane and on a first side of a second plane. The first plane and the second plane intersect along the axis of rotation. All planet bolts fixed in the planet carrier each lie on a second side of the first plane and/or the second plane.Type: ApplicationFiled: November 3, 2017Publication date: February 20, 2020Inventors: Ralf Sperlich, Joerg Muench, Dirk Strasser
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Publication number: 20190063409Abstract: A pitch tube includes a first tube part and a second tube part. The first tube part and the second tube part are detachably connected to each other.Type: ApplicationFiled: January 26, 2017Publication date: February 28, 2019Inventors: Steffen FISCHER, Dirk STRASSER
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Publication number: 20190032771Abstract: A planetary carrier for a gear stage of a planetary gearset includes at least one planetary pin that is disposed in a rotationally fixed manner in the planetary carrier, and a pair of tapered roller bearings that are disposed on the planetary pin supporting a planet gear. The planetary pin is fastened by means of a pin screw connection, which comprises a pin screw and a nut, to the planetary carrier. The tapered roller bearings are clamped against each other between the planetary carrier and the planet pin and are axially pretensioned by means of the pin screw connection.Type: ApplicationFiled: November 22, 2016Publication date: January 31, 2019Inventors: Joerg MUENCH, Dirk STRASSER, Ralf SPERLICH
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Patent number: 9523410Abstract: A planetary gear mechanism, in particular for wind power plants, includes at least one planetary gear stage that has two power-split planetary stages connected in parallel. At least one of the two planetary stages includes a ring gear which is operatively connected to a housing. At least three planetary gear wheels are arranged on an inner circumferential face of the ring gear. The ring gear is flexible in the radial direction and is configured to be adjustable in order to compensate load between the at least three planetary gear wheels and the ring gear.Type: GrantFiled: December 18, 2014Date of Patent: December 20, 2016Assignee: ZF Friedrichshafen AGInventors: Christian Lohmann, Dirk Strasser, Dirk Knipschild
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Patent number: 9206882Abstract: A wind power plant has a rotor, an integrated medium-speed electric generator, and a planetary transmission. The planetary transmission is arranged to convert a slow rotary motion of the rotor into a rapid rotary motion to operate the generator. The planetary transmission includes a transmission input shaft connected indirectly to the rotor and includes a transmission output shaft connected to the generator indirectly via a generator shaft. A coupling mechanism is arranged between the generator shaft and the planetary transmission to compensate axial, radial and angular misalignment.Type: GrantFiled: June 13, 2013Date of Patent: December 8, 2015Assignee: Robert Bosch GmbHInventors: Dirk Strasser, Christian Lohmann
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Publication number: 20150176679Abstract: A planetary gear mechanism, in particular for wind power plants, includes at least one planetary gear stage that has two power-split planetary stages connected in parallel. At least one of the two planetary stages includes a ring gear which is operatively connected to a housing. At least three planetary gear wheels are arranged on an inner circumferential face of the ring gear. The ring gear is flexible in the radial direction and is configured to be adjustable in order to compensate load between the at least three planetary gear wheels and the ring gear.Type: ApplicationFiled: December 18, 2014Publication date: June 25, 2015Inventors: Christian Lohmann, Dirk Strasser, Dirk Knipschild
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Patent number: 8840508Abstract: A planetary gear set with a planet stage revolving in a gear set housing has a planet carrier which is connected in particular to a rotor and has planet web cheeks which are connected to one another by means of webs, and a plurality of planet gears which are mounted in planet gear bearings, which are connected to the planet carrier, and are in engagement on one side with a sun gear and on the other side with a ring gear. The gear set housing is provided with an oil supply channel which is connected to at least one oil-guiding channel in the planet carrier. The lubrication of the meshing engagements is facilitated in the planetary gear set by providing dry sump lubrication. This is achieved in that at least one channel connected to the oil-guiding channel is embedded in each web, said channel being aligned with the meshing engagements between sun gear and planet gear and/or planet gear and ring gear.Type: GrantFiled: August 19, 2011Date of Patent: September 23, 2014Assignee: Robert Bosch GmbHInventors: Ansgar Floren, Gerhard Bauer, Dirk Strasser
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Publication number: 20130337969Abstract: A wind power plant has a rotor, an integrated medium-speed electric generator, and a planetary transmission. The planetary transmission is arranged to convert a slow rotary motion of the rotor into a rapid rotary motion to operate the generator. The planetary transmission includes a transmission input shaft connected indirectly to the rotor and includes a transmission output shaft connected to the generator indirectly via a generator shaft. A coupling mechanism is arranged between the generator shaft and the planetary transmission to compensate axial, radial and angular misalignment.Type: ApplicationFiled: June 13, 2013Publication date: December 19, 2013Inventors: Dirk Strasser, Christian Lohmann
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Publication number: 20120046139Abstract: A planetary gear set with a planet stage revolving in a gear set housing has a planet carrier which is connected in particular to a rotor and has planet web cheeks which are connected to one another by means of webs, and a plurality of planet gears which are mounted in planet gear bearings, which are connected to the planet carrier, and are in engagement on one side with a sun gear and on the other side with a ring gear. The gear set housing is provided with an oil supply channel which is connected to at least one oil-guiding channel in the planet carrier. The lubrication of the meshing engagements is facilitated in the planetary gear set by providing dry sump lubrication. This is achieved in that at least one channel connected to the oil-guiding channel is embedded in each web, said channel being aligned with the meshing engagements between sun gear and planet gear and/or planet gear and ring gear.Type: ApplicationFiled: August 19, 2011Publication date: February 23, 2012Applicant: Robert Bosch GmbHInventors: Ansgar Floren, Gerhard Bauer, Dirk Strasser