Patents by Inventor Rafael Murillo
Rafael Murillo 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).
-
Publication number: 20160118181Abstract: A transformer may comprise a winding wrapped around a magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in radial direction. The winding may comprise at least a first conductor and at least a second conductor, arranged radially adjacent to each other in each winding portion with the interposition of an insulating layer, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length.Type: ApplicationFiled: October 28, 2015Publication date: April 28, 2016Applicant: ABB TECHNOLOGY AGInventors: Rafael MURILLO, Antonio NOGUÉS BARRIERAS, Pilar ESTELLA, Pedro MARQUÉS SALDAÑA, Carlos ROY MARTÍN, Lorena CEBRIÁN LLES, Luis SÁNCHEZ
-
Patent number: 9214265Abstract: A single- or multi-phase dry-type transformer includes at least two coils. A barrier between phases made of an electrically insulating material is arranged in the intermediate space between the individual coils.Type: GrantFiled: January 9, 2013Date of Patent: December 15, 2015Assignee: ABB TECHNOLOGY AGInventors: Benjamin Weber, Bhavesh Patel, Burak Esenlik, Frank Cornelius, Marcos Bockholt, Jens Tepper, Rafael Murillo, Carlos Roy
-
Patent number: 8797133Abstract: A coil and electric shielding arrangement for a dry-type transformer includes an electric shielding device arranged at a distance from a winding, at an axial end of the winding perpendicular to a longitudinal axis of the transformer, and parallel to a top surface of a coil that is wound around the axis such that the electric shielding device covers a cross-sectional area of the winding perpendicular to the longitudinal axis. An insulation material attached to the winding and to the electric shielding device establishes a first distance between the winding and the electric shielding device along the longitudinal axis such that the winding is shielded against another electric field. The winding and the electric shielding device are casted in a block which insulates the electric shielding device from the electric field of the winding by establishing a second distance between the winding and the electric shielding device.Type: GrantFiled: December 27, 2012Date of Patent: August 5, 2014Assignee: ABB Technology Ltd.Inventors: Rafael Murillo, Carlos Roy, Jasmin Smajic, Lise Donzel, Jens Tepper, Jesús Letosa Fleta, Antonio Usón, Maria Teresa Villen, Miguel Samplon
-
Patent number: 8742876Abstract: The disclosure relates to a transformer coil which can be cooled by a heat pipe and has a primary winding and a secondary winding and relates to a transformer which is formed from transformer coils which can be cooled in this way. The heat from the transformer coil is dissipated by the heat pipe. The evaporator of the heat pipe is arranged in the area of the windings and forms at least one extensive evaporator segment, which extends in the circumferential direction of the windings and along the winding axis of the transformer coil and in the process covers a multiplicity of the turns of the secondary winding.Type: GrantFiled: December 5, 2011Date of Patent: June 3, 2014Assignee: ABB Technology AGInventors: Daniel Chartouni, Rafael Murillo, Tilo Bühler
-
Publication number: 20130321113Abstract: A dry-type electrical transformer includes a coil assembly having at least one winding wound into a plurality of concentric turns, at least one cooling sector defined between adjacent concentric turns, spacers positioned inside the cooling sector and spaced from each other to allow a plurality of air ducts each defined between two adjacent spacers, and at least one electrical shield positioned in the cooling sector and arranged to electrically shield the air ducts. At least one electrical shield is positioned in the cooling sector and arranged to electrically shield the air ducts. The electrical shield include a first end edge connected to the turn at the inner side of the cooling sector, a second end edge which is free and electrically insulated from the surrounding parts, and a central portion extending between the first and second end edges and is positioned at the outer side of the spacers.Type: ApplicationFiled: August 7, 2013Publication date: December 5, 2013Applicant: ABB Technology AGInventors: Carlos ROY, Rafael Murillo, Lorena Cebrian Lles
-
Patent number: 8570131Abstract: A transformer containing an electrical active part arranged in an insulating space and including primary and secondary winding wound around a magnetic core. and radially spaced apart from each other by a winding space having an insulation fluid. A block defines a compartment closed and separated from a remaining insulating space, the compartment being at least partially arranged within the winding space. The compartment contains an insulation fluid different from insulation fluid in the remaining insulating space, and having a higher dielectric breakdown field strength than the insulation fluid in the remaining insulating space.Type: GrantFiled: April 19, 2012Date of Patent: October 29, 2013Assignee: ABB Technology AGInventor: Rafael Murillo
-
Publication number: 20120206228Abstract: A transformer containing an electrical active part arranged in an insulating space and including primary and secondary winding wound around a magnetic core. and radially spaced apart from each other by a winding space having an insulation fluid. A block defines a compartment closed and separated from a remaining insulating space, the compartment being at least partially arranged within the winding space. The compartment contains an insulation fluid different from insulation fluid in the remaining insulating space, and having a higher dielectric breakdown field strength than the insulation fluid in the remaining insulating space.Type: ApplicationFiled: April 19, 2012Publication date: August 16, 2012Applicant: ABB Technology AGInventor: Rafael MURILLO
-
Publication number: 20120092109Abstract: The disclosure relates to a transformer coil which can be cooled by a heat pipe and has a primary winding and a secondary winding and relates to a transformer which is formed from transformer coils which can be cooled in this way. The heat from the transformer coil is dissipated by the heat pipe. The evaporator of the heat pipe is arranged in the area of the windings and forms at least one extensive evaporator segment, which extends in the circumferential direction of the windings and along the winding axis of the transformer coil and in the process covers a multiplicity of the turns of the secondary winding.Type: ApplicationFiled: December 5, 2011Publication date: April 19, 2012Applicant: ABB Technology AGInventors: Daniel Chartouni, Rafael Murillo, Tilo Bühler
-
Patent number: 8111123Abstract: A method of manufacturing a transformer that includes forming a disc-wound coil using a plurality of pre-formed cooling ducts. Each cooling duct may be supported by a support pipe secured between walls of the cooling duct, or by a removable insert. First and second conductor layers are formed, each of which include plurality of disc windings arranged in an axial direction of the disc-wound coil. A spacer layer is formed between the first and second conductor layers to form a plurality of axially-extending passages. The cooling ducts are slid into the axially-extending passages so as to be disposed between the first and second conductor layers.Type: GrantFiled: September 10, 2010Date of Patent: February 7, 2012Assignee: ABB Technology AGInventors: Jong-Yun Lim, Chang-Yeol Lim, Young-Jin Ha, Chang-Hyeon Lee, Charles W. Johnson, Hae-Sun Yang, Rafael Murillo, Robert C. Ballard
-
Publication number: 20110063062Abstract: A method of manufacturing a transformer that includes forming a disc-wound coil using a plurality of pre-formed cooling ducts. Each cooling duct may be supported by a support pipe secured between walls of the cooling duct, or by a removable insert. First and second conductor layers are formed, each of which include plurality of disc windings arranged in an axial direction of the disc-wound coil. A spacer layer is formed between the first and second conductor layers to form a plurality of axially-extending passages. The cooling ducts are slid into the axially-extending passages so as to be disposed between the first and second conductor layers.Type: ApplicationFiled: September 10, 2010Publication date: March 17, 2011Applicant: ABB TECHNOLOGY AGInventors: Jong-Yun Lim, Chang-Yeol LIM, Young-Jin HA, Chang-Hyeon Lee, Charles W. Johnson, Hae-Sun Yang, Rafael Murillo, Robert C. Ballard
-
Publication number: 20070279380Abstract: The present invention involves a computer input device that can be attached to a hand. The device includes an adjustable band that can be wrapped around the palm portion of the hand. A control housing is attached to the adjustable band. A control joystick used for controlling a computer screen cursor is attached to an end of the control housing. The joystick is angled for use with the thumb of a user and can be adjustable in length to accommodate different sized thumbs. The joystick can also be depressed to function as a button. One or more control buttons and a scrolling wheel can be located on the adjustable band near the joystick for increasing the functionality of the device. The device can communicate with a computer wirelessly or via an attached cable. The device can utilize a trackball in addition to or instead of the control joystick.Type: ApplicationFiled: May 31, 2006Publication date: December 6, 2007Inventor: Bruno Rafael Murillo