Patents by Inventor Aleksandr Kravets

Aleksandr Kravets 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).

  • Patent number: 11035260
    Abstract: A method to generate electrical power and cold energy from any grade of thermal energy (e.g., ambient, solar, waste heat, geothermal, combustion products, nuclear, or any combination thereof) in a cryogenic, closed loop (e.g., regenerative) cycle is disclosed.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: June 15, 2021
    Inventors: Aleksandr Kravets, Donald Nelson Grace
  • Patent number: 8453452
    Abstract: A method for improvement of a fossil fuel energy conversion into electrical energy for the simple sub- and supercritical steam cycle is proposed through introduction of additional regenerative cycle duties to improve the evaporation rate per unit of fuel burned, thus minimizing condenser heat loss of the working media. The additional duties provide a supplemental energy credit in the form of heat input to a steam generator where a modified combustion process is realized to convert fossil fuel into carbon monoxide and hydrogen at atmospheric pressure and thus achieving an essential reduction of nitrogen oxides (NOx) formation. The additional duties also involve a direct contact heat transfer to recover latent and thermal energy, contained in the discharged combustion products to provide yet another energy credit that satisfies both conventional and/or added regenerative cycle duties.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: June 4, 2013
    Assignee: Veritask Energy Systems, Inc.
    Inventor: Aleksandr Kravets
  • Publication number: 20100139276
    Abstract: A method for improvement of a fossil fuel energy conversion into electrical energy for the simple sub- and supercritical steam cycle is proposed through introduction of additional regenerative cycle duties to improve the evaporation rate per unit of fuel burned, thus minimizing condenser heat loss of the working media. The additional duties provide a supplemental energy credit in the form of heat input to a steam generator where a modified combustion process is realized to convert fossil fuel into carbon monoxide and hydrogen at atmospheric pressure and thus achieving an essential reduction of nitrogen oxides (NOx) formation. The additional duties also involve a direct contact heat transfer to recover latent and thermal energy, contained in the discharged combustion products to provide yet another energy credit that satisfies both conventional and/or added regenerative cycle duties.
    Type: Application
    Filed: February 17, 2010
    Publication date: June 10, 2010
    Applicant: Veritask Energy Systems, Inc.
    Inventor: Aleksandr Kravets
  • Patent number: 7690201
    Abstract: A method for improvement of a fossil fuel energy conversion into electrical energy for the simple sub- and supercritical steam cycle is proposed through introduction of additional regenerative cycle duties to improve the evaporation rate per unit of fuel burned, thus minimizing condenser heat loss of the working media. The additional duties provide a supplemental energy credit in the form of heat input to a steam generator where a modified combustion process is realized to convert fossil fuel into carbon monoxide and hydrogen at atmospheric pressure and thus achieving an essential reduction of nitrogen oxides (NOx) formation. The additional duties also involve a direct contact heat transfer to recover latent and thermal energy, contained in the discharged combustion products to provide yet another energy credit that satisfies both conventional and/or added regenerative cycle duties.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: April 6, 2010
    Assignee: Veritask Energy Systems, Inc.
    Inventor: Aleksandr Kravets
  • Publication number: 20070101718
    Abstract: A method for improvement of a fossil fuel energy conversion into electrical energy for the simple sub—and supercritical steam cycle is disclosed through introduction of additional regenerative cycle duties to improve the evaporation rate per unit of fuel burned, thus minimizing condenser heat loss of the working media. The additional duties provide a supplemental energy credit in the form of heat input to a steam generator where a modified combustion process is realized to convert fossil fuel into carbon monoxide and hydrogen at atmospheric pressure and thus achieving an essential reduction of nitrogen oxides (NOx) formation. The additional duties also involve a direct contact heat transfer to recover latent and thermal energy, contained in the discharged combustion products to provide yet another energy credit that satisfies both conventional and/or added regenerative cycle duties.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 10, 2007
    Inventor: Aleksandr Kravets
  • Patent number: 5570681
    Abstract: For transmitting a fuel heat energy to water or air the heating system performs the steps of producing fuel combustion products in a combustion chamber, sucking the fuel combustion products from the combustion chamber into an ejector and mixing the combustion products in the ejector with an intermediate water to provide an absorption of a combustion heat of the combustion products so as to heat the intermediate water, and supplying the heated water into a means in which the heated water transfers a heat accumulated in the heated water to a cold water from the heating system.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: November 5, 1996
    Inventors: Aleksandr Kravets, Eugene Tseytlin