Patents by Inventor Esa Virtanen
Esa Virtanen 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: 11705274Abstract: An arrangement for an overvoltage protection of a subsea electrical apparatus and a method for operating it. The arrangement includes a tank submersible below a water surface level, an electrical apparatus accommodated in the tank, and a surge arrester arrangement accommodated in the tank and coupled to a power supply of the electrical apparatus in the tank for providing the overvoltage protection of the electrical apparatus. The arrangement further includes a controllable grounding switch for connecting the surge arrester arrangement to a ground point in response to a control of the grounding switch to a closed state and for disconnecting the surge arrester arrangement from the ground point in response to a control of the grounding switch to an open state.Type: GrantFiled: June 24, 2021Date of Patent: July 18, 2023Assignee: ABB Schweiz AGInventors: Heinz Lendenmann, Kim Missing, Esa Virtanen, Thomas Wagner
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Publication number: 20220102048Abstract: A static electrical device assembly including: a static electrical device; a heat exchanger system including a first heat exchanger adapted for cooling of the static electrical device by transferring heat into ambient air, and a second heat exchanger adapted for recovering heat from the static electrical device; a flow passage adapted to provide a route for air flow between outdoor air and the first heat exchanger; a sensor system adapted to provide temperature information relating to the static electrical device; and a control system (CTRL) adapted to control the heat exchanger system based on information provided by the sensor system. The heat exchanger system further includes a shutter arrangement adapted to adjust a surface area of the flow passage, the control system (CTRL) is adapted to control the shutter arrangement between an open state and an enclosed state.Type: ApplicationFiled: November 22, 2019Publication date: March 31, 2022Applicant: ABB Power Grids Switzerland AGInventors: Esa VIRTANEN, Heli OJALAMMI, Katja OINAS
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Publication number: 20210407730Abstract: An arrangement for an overvoltage protection of a subsea electrical apparatus and a method for operating it. The arrangement includes a tank submersible below a water surface level, an electrical apparatus accommodated in the tank, and a surge arrester arrangement accommodated in the tank and coupled to a power supply of the electrical apparatus in the tank for providing the overvoltage protection of the electrical apparatus. The arrangement further includes a controllable grounding switch for connecting the surge arrester arrangement to a ground point in response to a control of the grounding switch to a closed state and for disconnecting the surge arrester arrangement from the ground point in response to a control of the grounding switch to an open state.Type: ApplicationFiled: June 24, 2021Publication date: December 30, 2021Inventors: Heinz Lendenmann, Kim Missing, Esa Virtanen, Thomas Wagner
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Publication number: 20210134512Abstract: An intermediate yoke for a power transformer with at least three legs, the intermediate yoke including a plurality of pre-stacked intermediate yoke modules for being fitted between the adjacent legs, laminated transformer sheets of an intermediate yoke module bound by stud bolts or other tie rods, the intermediate yoke including plurality of interconnection plates including at the at least one transformer sheet for binding the pre-stacked intermediate yoke modules together by both sides of the intermediate yoke module.Type: ApplicationFiled: May 6, 2019Publication date: May 6, 2021Inventors: Esa Virtanen, Atso Jussila, Jaakko Ketola, Karita Forss
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Patent number: 10244650Abstract: A pressure compensated subsea electrical system and a pressure compensated subsea electrical system which has a housing filled with a dielectric liquid. The housing has a first housing portion and a second housing portion in pressure communication with each other. The first housing portion includes a transformer, and the second housing portion includes a power converter. The pressure compensated subsea electrical system includes a pressure compensator arranged to compensate pressure inside the housing. The pressure compensator is enabled to compensate pressure in both the first housing portion and the second housing portion.Type: GrantFiled: August 10, 2015Date of Patent: March 26, 2019Assignee: ABB Schweiz AGInventors: Tor Laneryd, Thomas Gradinger, Heinz Lendenmann, Esa Virtanen, Thomas Wagner, Timo Koivuluoma
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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: 20170280577Abstract: A pressure compensated subsea electrical system and a pressure compensated subsea electrical system which has a housing filled with a dielectric liquid. The housing has a first housing portion and a second housing portion in pressure communication with each other. The first housing portion includes a transformer, and the second housing portion includes a power converter. The pressure compensated subsea electrical system includes a pressure compensator arranged to compensate pressure inside the housing. The pressure compensator is enabled to compensate pressure in both the first housing portion and the second housing portion.Type: ApplicationFiled: August 10, 2015Publication date: September 28, 2017Applicant: ABB Schweiz AGInventors: Tor Laneryd, Thomas Gradinger, Heinz Lendenmann, Esa Virtanen, Thomas Wagner, Timo Koivuluoma
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Patent number: 9759241Abstract: A pressure compensator is disclosed for a subsea electric installation, which includes a rigid bottle and a flexible bag placed in the rigid bottle, the pressure compensator including a first opening at a first end of the pressure compensator allowing fluid communication of an insulating medium arranged to intermediate space between the rigid bottle and the flexible bag, a second opening at a second end of the pressure compensator allowing fluid communication of seawater arranged within the flexible bag; and a bypass channel providing fluid communication between two points in the intermediate space of the pressure compensator.Type: GrantFiled: February 27, 2015Date of Patent: September 12, 2017Assignee: ABB Schweiz AGInventors: Kim Missing, 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
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Publication number: 20150167704Abstract: A pressure compensator is disclosed for a subsea electric installation, which includes a rigid bottle and a flexible bag placed in the rigid bottle, the pressure compensator including a first opening at a first end of the pressure compensator allowing fluid communication of an insulating medium arranged to intermediate space between the rigid bottle and the flexible bag, a second opening at a second end of the pressure compensator allowing fluid communication of seawater arranged within the flexible bag; and a bypass channel providing fluid communication between two points in the intermediate space of the pressure compensator.Type: ApplicationFiled: February 27, 2015Publication date: June 18, 2015Applicant: ABB TECHNOLOGY AGInventors: Kim MISSING, Esa VIRTANEN
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Patent number: 8549924Abstract: A pressure compensator is configured to compensate for volume variations of an insulation medium of a subsea installation. The pressure compensator includes a first bellows chamber having walls and a first bellows part. The first bellows chamber is in flow connection with an insulation medium chamber of the subsea installation, and the walls of the first bellows chamber are configured to separate the insulating medium from surroundings. The first bellows chamber is surrounded by a second bellows chamber having walls and a second bellows part. The second bellows chamber is configured to form a closed intermediate space around the first bellows chamber. The walls of the second bellows chamber are configured to separate at least the bellows parts of the first bellows chamber from the surrounding sea water. The second bellows chamber is further filled with an intermediate medium.Type: GrantFiled: March 24, 2011Date of Patent: October 8, 2013Assignee: ABB Technology AGInventors: Esa Virtanen, Thorvald Haldin, Kim Missing
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Publication number: 20110203379Abstract: A pressure compensator is configured to compensate for volume variations of an insulation medium of a subsea installation. The pressure compensator includes a first bellows chamber having walls and a first bellows part. The first bellows chamber is in flow connection with an insulation medium chamber of the subsea installation, and the walls of the first bellows chamber are configured to separate the insulating medium from surroundings. The first bellows chamber is surrounded by a second bellows chamber having walls and a second bellows part. The second bellows chamber is configured to form a closed intermediate space around the first bellows chamber. The walls of the second bellows chamber are configured to separate at least the bellows parts of the first bellows chamber from the surrounding sea water. The second bellows chamber is further filled with an intermediate medium.Type: ApplicationFiled: March 24, 2011Publication date: August 25, 2011Applicant: ABB Technology AGInventors: Esa VIRTANEN, Thorvald Haldin, Kim Missing
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Patent number: 7141141Abstract: The invention relates to an apparatus for the on-line determination of paper web moisture content and/or temperature on the dryer section of a papermaking machine. The apparatus is designed to form, in combination with a doctor means and/or a packet ventilating tube, such a compact structure wherein the apparatus operates underneath such means or in a close proximity thereto. The invention also relates to a method for control of paper web moisture content and temperature on the basis of measurements performed on the dryer section of a papermaking machine.Type: GrantFiled: November 2, 2000Date of Patent: November 28, 2006Assignee: EV Group OyInventors: Pekka Koskinen, Esa Virtanen, Ilpo Pitkaniemi, Jari Ristola
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Patent number: 6479780Abstract: The invention relates to a circuit breaker, which is in a fault situation arranged to disconnect an electrical apparatus, such as a distribution transformer, from an average voltage network or a high voltage network at each terminal. At least one link-spring mechanism is arranged at a shaft of the circuit breaker for holding contacts live in connected position and for pushing them apart to the extreme disconnected position when disconnected, while the shaft is brought over the dead spot of its turning. For an initial release, the shaft is at each phase provided with a lever arm, each lever arm at each phase being arranged to turn by a trip pin of a striker of a high voltage fuse the shaft of the circuit breaker and thus the moving contacts of all phases from said connected position over the dead spot of turning said shaft.Type: GrantFiled: March 17, 2000Date of Patent: November 12, 2002Assignee: ABB OyInventors: Esa Virtanen, Tapani Tiitola, Vesa Virtanen
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Patent number: 6456179Abstract: A container (2) with an oil immersed core (1) and windings has corrugated walls. Bushing insulators (9,10) have pressure-resistant and water-resistant cable shoes (11). A tank encompasses another container (4) filled with insulating oil (3) and has pressure-resistant cable bushing (13) and connectors for electrical connections of the transformer.Type: GrantFiled: December 22, 2000Date of Patent: September 24, 2002Assignee: Merger Recipient ABB OyInventors: Johan Backa, Karl Engman, Torvald Haldin, Esa Virtanen
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Publication number: 20020053554Abstract: The invention relates to a circuit breaker, which is in a fault situation arranged to disconnect an electrical apparatus, such as a distribution transformer, from an average voltage network or a high voltage network at each terminal. At least one lik-spring mechanism (9 to 12) is arranged at a shaft (6) of the circuit breaker for holding contacts (1, 2) live in connected position and for pushing them apart to the extreme disconnected position when disconnected, while the shaft (6) is brought over the dead spot of its turning.Type: ApplicationFiled: March 17, 2000Publication date: May 9, 2002Inventors: ESA VIRTANEN, TAPANI TIITOLA, VESA VIRTANEN
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Patent number: 5585038Abstract: The invention relates to a conductive polymer complex which contains a polyaniline or derivative thereof doped with a protonic acid. By the method according to the invention, a conductive polymer is obtained having substantially reduced acidity, sufficiently high conductivity level, and which is suitable, for example, for being melt processed in conventional plastics processing apparatus. The acidity of the conductive polymer can be reduced by having the conductive polymer contain both a metal compound and an additionally neutralizing compound. The obtained conductive polymer material, having a pH value of approximately 3-8, can be mixed with an insulating polymer to produce a conductive plastics mixture. The invention also relates to a method of preparing a conductive polymer that is more processable by incorporating therein a plasticizing agent selected from the group consisting of water, a C.sub.1 -C.sub.3 alcohol, and mixtures thereof.Type: GrantFiled: June 3, 1994Date of Patent: December 17, 1996Assignee: Neste OyInventors: Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo K arn a, Jukka Laakso, Heikki Ruohonen, Kimmo V akiparta, Olli Ikkala, Hannele J arvinen
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Patent number: 5585040Abstract: The invention relates to a conductive polymer complex which contains a polyaniline or derivative thereof doped with a protonic acid. By the method according to the invention, a conductive polymer is obtained having substantially reduced acidity, sufficiently high conductivity level, and which is suitable, for example, for being melt processed in conventional plastics processing apparatus. The acidity of the conductive polymer can be reduced by having the conductive polymer contain both a metal compound and an additionally neutralizing compound. The obtained conductive polymer material, having a pH value of approximately 3-8, can be mixed with an insulating polymer to produce a conductive plastics mixture. The invention also relates to a method of preparing a conductive polymer that is more processable by incorporating therein a plasticizing agent selected from the group consisting of water, a C.sub.1 -C.sub.3 alcohol, and mixtures thereof.Type: GrantFiled: June 7, 1995Date of Patent: December 17, 1996Assignee: Neste OyInventors: Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo Karna, Jukka Laakso, Heikki Ruohonen, Kimmo Vakiparta, Olli Ikkala, Hannele Jarvinen
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Patent number: 5531932Abstract: Compositions and methods are described that relate to the use of reaction products of metal compounds and protonic acids for plasticizing and neutralizing acidic, protonated compositions comprising substituted and unsubstituted polyanilines and co-polymers and or mixtures thereof; and for reducing the percolation threshold for conductivity in blends with insulating bulk polymers.Type: GrantFiled: April 28, 1994Date of Patent: July 2, 1996Assignee: Neste OyInventors: Toivo Karna, Jukka Laakso, Timo Niemi, Heikki Ruohonen, Esko Savolainen, Helge Lindstrom, Esa Virtanen, Olli Ikkala
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Patent number: 5507977Abstract: The present invention is directed to electrically conducting complexes, methods of producing them, and their use in producing plastic materials with high electrical conductivity. The invention is particularly directed to an electrically conducting complex formed of two components, the total dissolution of which is avoided. The complex according to the invention has a more highly conductive component (A) and a component (B), which is capable of dissolving component (A). In a complex according to the invention, component (A) and component (B) are combined in such a way that limited dissolution takes place at the interface between the two, whereby the advantages of both components are obtained in the complex. The invention also concerns a method of producing the complex and use of the complex together with a polymer matrix to form plastic materials having high electrical conductivity.Type: GrantFiled: February 10, 1995Date of Patent: April 16, 1996Assignee: Neste OyInventors: Esa Virtanen, Kimmo Vakiparta