Patents by Inventor Markku LAUNONEN
Markku LAUNONEN 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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Patent number: 11587756Abstract: An electrical assembly comprising a housing forming a liquid tank inside thereof, dielectric liquid in the liquid tank, at least one fuse, and a blown fuse indication system. Each of the fuses is immersed in the dielectric liquid, and is provided with a striker pin. The blown fuse indication system is adapted to indicate a blowout of any one of the fuses by an indication signal. The blown fuse indication system comprises a first indication member and a second indication member. The first indication member is movable by the striker pins. The second indication member is immovably connected to the housing, and adapted to generate the indication signal as a response to relative movement between the first indication member and the second indication member.Type: GrantFiled: July 7, 2020Date of Patent: February 21, 2023Inventors: Juhani Ala-Toppari, Mika Norolampi, Markku Launonen, Janne Rissanen
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Publication number: 20220270841Abstract: An electrical assembly comprising a housing forming a liquid tank inside thereof, dielectric liquid in the liquid tank, at least one fuse. and a blown fuse indication system. Each of the fuses is immersed in the dielectric liquid, and is provided with a striker pin. The blown fuse indication system is adapted to indicate a blowout of any one of the fuses by an indication signal. The blown fuse indication system comprises a first indication member and a second indication member. The first indication member is movable by the striker pins. The second indication member is immovably connected to the housing. and adapted to generate the indication signal as a response to relative movement between the first indication member and the second indication member.Type: ApplicationFiled: July 7, 2020Publication date: August 25, 2022Applicant: Hitachi Energy Switzerland AGInventors: Juhani ALA-TOPPARI, Mika NOROLAMPI, Markku LAUNONEN, Janne RISSANEN
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Publication number: 20220005661Abstract: The subsea fuse assembly includes an enclosure filled with a dielectric fluid and provided with an equalization opening, which is sealed with a flexible element. A first electric conductor extends into the enclosure through a first lead-through positioned in a wall of the enclosure. A second electric conductor is attached to an inner surface of a wall of the enclosure. A fuse is connected between the first electric conductor and the second electric conductor within the enclosure. A third electric conductor extends outside the enclosure and is attached to an outer surface of a wall of the enclosure. An electrically conductive path is thus provided between the second electric conductor and the third electric conductor through the electrically conductive enclosure.Type: ApplicationFiled: November 25, 2019Publication date: January 6, 2022Applicant: ABB Power Grids Switzerland AGInventor: Markku LAUNONEN
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Patent number: 11212931Abstract: A subsea installation. The subsea installation comprises a tank containing an insulation fluid or other fluid, a heat generating electric apparatus positioned at least partly within the tanks, and a pressure compensator being in fluid communication with the tank and being configured to compensate volume variations of the insulation fluid or the other fluid by performing an expansive and a contracting movement. The subsea installation comprises further means for heating the insulation fluid or the other fluid, said means for heating being configured to provide heating to the insulation fluid or the other fluid with the heat generating electric apparatus is in a non-operating state in order to reduce the volume variations of the insulation fluid or the other fluid.Type: GrantFiled: June 27, 2019Date of Patent: December 28, 2021Assignee: ABB Schweiz AGInventor: Markku Launonen
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Patent number: 11069156Abstract: A method for estimating the remaining useful life of a pressure compensator of a subsea arrangement, the method including determining displacement data related to displacements of the pressure compensator during a time period; and estimating the remaining useful life of the pressure compensator in relation to a failure mode of the pressure compensator based on the determined displacement data of the pressure compensator. A system including a subsea arrangement and a control system, a computer program product, and a computer program, are also provided.Type: GrantFiled: January 29, 2019Date of Patent: July 20, 2021Assignee: ABB Schweiz AGInventors: Arne Trandal, Markku Launonen, Helge Kolstad
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Publication number: 20200364948Abstract: A method for estimating the remaining useful life of a pressure compensator of a subsea arrangement, the method including determining displacement data related to displacements of the pressure compensator during a time period; and estimating the remaining useful life of the pressure compensator in relation to a failure mode of the pressure compensator based on the determined displacement data of the pressure compensator. A system including a subsea arrangement and a control system, a computer program product, and a computer program, are also provided.Type: ApplicationFiled: January 29, 2019Publication date: November 19, 2020Inventors: Arne Trandal, Markku Launonen, Helge Kolstad
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Patent number: 10677273Abstract: A subsea arrangement including a main enclosure having a main enclosure volume; at least one main pressure compensator having a variable compensation volume in fluid communication with the main enclosure volume and configured to compensate volume variations of an internal fluid in the main enclosure volume; and at least one pressure sensor arranged to measure a pressure of the internal fluid. A method for detecting a malfunction of a subsea arrangement including a main enclosure having a main enclosure volume and at least one main pressure compensator is also provided.Type: GrantFiled: January 23, 2018Date of Patent: June 9, 2020Assignee: ABB Schweiz AGInventors: Arne Trandal, Markku Launonen
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Publication number: 20190320545Abstract: A subsea installation. The subsea installation comprises a tank containing an insulation fluid or other fluid, a heat generating electric apparatus positioned at least partly within the tanks, and a pressure compensator being in fluid communication with the tank and being configured to compensate volume variations of the insulation fluid or the other fluid by performing an expansive and a contracting movement. The subsea installation comprises further means for heating the insulation fluid or the other fluid, said means for heating being configured to provide heating to the insulation fluid or the other fluid with the heat generating electric apparatus is in a non-operating state in order to reduce the volume variations of the insulation fluid or the other fluid.Type: ApplicationFiled: June 27, 2019Publication date: October 17, 2019Inventor: Markku Launonen
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Publication number: 20180313372Abstract: A subsea arrangement including a main enclosure having a main enclosure volume; at least one main pressure compensator having a variable compensation volume in fluid communication with the main enclosure volume and configured to compensate volume variations of an internal fluid in the main enclosure volume; and at least one pressure sensor arranged to measure a pressure of the internal fluid. A method for detecting a malfunction of a subsea arrangement including a main enclosure having a main enclosure volume and at least one main pressure compensator is also provided.Type: ApplicationFiled: January 23, 2018Publication date: November 1, 2018Inventors: Arne Trandal, Markku Launonen
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Patent number: 10041507Abstract: A subsea pressure compensation arrangement is disclosed as having a vessel filled with insulating fluid, and a pressure compensator for compensating pressure variations of the insulating fluid. The arrangement can include a fluid connection pipe for fluid communication between the vessel and the pressure compensator, wherein the fluid connection pipe is connected to a bottom wall of the pressure compensator. A pipe opening arranged at an end of the fluid connection pipe extends above a level of the bottom wall of the pressure compensator.Type: GrantFiled: May 28, 2015Date of Patent: August 7, 2018Assignee: ABB Schweiz AGInventors: Markku Launonen, Erkki Hiironniemi, Esa Virtanen
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Publication number: 20150260203Abstract: A subsea pressure compensation arrangement is disclosed as having a vessel filled with insulating fluid, and a pressure compensator for compensating pressure variations of the insulating fluid. The arrangement can include a fluid connection pipe for fluid communication between the vessel and the pressure compensator, wherein the fluid connection pipe is connected to a bottom wall of the pressure compensator. A pipe opening arranged at an end of the fluid connection pipe extends above a level of the bottom wall of the pressure compensator.Type: ApplicationFiled: May 28, 2015Publication date: September 17, 2015Applicant: ABB Technology AGInventors: Markku LAUNONEN, Erkki HIIRONNIEMI, Esa VIRTANEN