Patents by Inventor Omourtag A. Velev
Omourtag A. Velev 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: 8586253Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: June 8, 2012Date of Patent: November 19, 2013Assignee: AeroVironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20130034783Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: June 8, 2012Publication date: February 7, 2013Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20120249065Abstract: An energy management method for controlling electric vehicle charging by managing plural local energy sources, to optimize charging speed and minimize energy cost.Type: ApplicationFiled: August 26, 2011Publication date: October 4, 2012Inventors: Michael Bissonette, Omourtag A. Velev, Eric Aagaard
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Patent number: 8197974Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: October 15, 2010Date of Patent: June 12, 2012Assignee: AeroVironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20110039171Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: October 15, 2010Publication date: February 17, 2011Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20100055512Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: October 30, 2009Publication date: March 4, 2010Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Patent number: 7611789Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: October 31, 2007Date of Patent: November 3, 2009Assignee: Aero Vironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Patent number: 7588846Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: October 31, 2007Date of Patent: September 15, 2009Assignee: Aerovironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Patent number: 7563529Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: October 31, 2007Date of Patent: July 21, 2009Assignee: Aerovironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Patent number: 7531256Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: October 31, 2007Date of Patent: May 12, 2009Assignee: Aerovironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Patent number: 7531254Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: GrantFiled: April 17, 2003Date of Patent: May 12, 2009Assignee: Aerovironment Inc.Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20080241621Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: October 31, 2007Publication date: October 2, 2008Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20080187809Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: October 31, 2007Publication date: August 7, 2008Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20080166603Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: October 31, 2007Publication date: July 10, 2008Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20080166613Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: October 31, 2007Publication date: July 10, 2008Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Publication number: 20040028966Abstract: A closed loop energy storage system configured with a hydrogen tank, an oxygen tank, a fuel cell stack and an electrolyzer. A heat exchanger freeze-dries the hydrogen and oxygen prior to their storage in their respective tanks. The heat exchanger also uses excess fuel cell heat to preheat streams of hydrogen and oxygen coming from the tanks. Phase separators serve both to separate water from hydrogen and oxygen, and to store the water. A thermal management system encloses all the system components except the tanks. An airfoil-shaped shell covers the system, and the larger of the two tanks extends substantially across the shell at its point of greatest camber thickness. The tanks are composed of polymer liners integral with composite shells.Type: ApplicationFiled: April 17, 2003Publication date: February 12, 2004Inventors: Bart D. Hibbs, William M. Parks, Omourtag A. Velev
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Patent number: 6495025Abstract: The method of producing O2 from water, that includes subjecting water to electrolysis, to produce H2 and O2, returning H2 to a water storage zone, drying the produced O2, using air as a drying agent, flowing a stream of that drying agent air to the cathode side of fuel cell, flowing a stream of produced hydrogen to the anode side of the fuel cell, for reaction with O2 in the agent air to produce water electrical energy and heat, and using electrical energy produced by fuel cell in the electrolysis.Type: GrantFiled: April 20, 2001Date of Patent: December 17, 2002Assignee: Aerovironment, Inc.Inventor: Omourtag Velev
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Publication number: 20020153263Abstract: The method of producing O2 from water, that includes subjecting water to electrolysis, to produce H2 and O2, returning H2 to a water storage zone, drying the produced O2, using air as a drying agent, flowing a stream of that drying agent air to the cathode side of fuel cell, flowing a stream of produced hydrogen to the anode side of the fuel cell, for reaction with O2 in the agent air to produce water electrical energy and heat, and using electrical energy produced by fuel cell in the electrolysis.Type: ApplicationFiled: April 20, 2001Publication date: October 24, 2002Inventor: Omourtag Velev