Patents by Inventor Dilip Kumar De

Dilip Kumar De 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: 12584466
    Abstract: A Novel thermodynamic cycle known as the ‘Hybrid Power Cycle’ is proposed consisting of a power cycle and a refrigeration cycle in a partial form, using fixed amounts of the same working-fluid in closed cycles. The vapor in the partial refrigeration cycle undergoes a polytropic compression with the rejected heat removed by the compressed liquid in the partial power cycle before both are combined at same pressure prior to entering a heat exchanger to absorb ambient heat. When the temperature reaches the desired level, they undergo turbo-expansion yielding a minimum external achievable work of 60.63KJ/kg of liquid nitrogen (LN2). A novel binary-hybrid cycle was also invented to increase the external work-output to 77.79KJ/kg (LN2). This technology can be used to generate clean electrical and mechanical power including transportation without any fuel at a low cost, using only ambient heat with zero environmental pollution and zero global warming potential.
    Type: Grant
    Filed: October 30, 2024
    Date of Patent: March 24, 2026
    Assignee: DILIP KUMAR DE IDOV
    Inventors: Dilip Kumar De, Idowu Ayodele Oduniyi
  • Publication number: 20250052233
    Abstract: A Novel thermodynamic cycle known as the ‘Hybrid Power Cycle’ is proposed consisting of a power cycle and a refrigeration cycle in a partial form, using fixed amounts of the same working-fluid in closed cycles. The vapor in the partial refrigeration cycle undergoes a polytropic compression with the rejected heat removed by the compressed liquid in the partial power cycle before both are combined at same pressure prior to entering a heat exchanger to absorb ambient heat. When the temperature reaches the desired level, they undergo turbo-expansion yielding a minimum external achievable work of 60.63 kJ/kg of liquid nitrogen (LN2). A novel binary-hybrid cycle was also invented to increase the external work-output to 77.79 kJ/kg (LN2). This technology can be used to generate clean electrical and mechanical power including transportation without any fuel at a low cost, using only ambient heat with zero environmental pollution and zero global warming potential.
    Type: Application
    Filed: October 30, 2024
    Publication date: February 13, 2025
    Inventors: Dilip Kumar De, Idowu Ayodele Oduniyi
  • Patent number: 10670334
    Abstract: A cryogenic technology for the cost-efficient capture of each known component of emissions, such as carbon dioxide, sulfur oxides, nitrogen oxides, carbon monoxide, any other acid vapor, mercury, steam, in a liquefied or frozen/solidified form, and unreacted nitrogen (gas) from industrial plants, such that each of the components is captured separately with minimum use of energy and is industrially useful.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 2, 2020
    Inventors: Dilip Kumar De, Idowu Ayodele Oduniyi
  • Publication number: 20190170436
    Abstract: In this patent we disclose, for the first time, detailed methods of our newly invented state-of-the-art cryogenic technology for the cost effective energy efficient capture of each known component of entire emissions (nearly 100%) such as carbon dioxide (CO2), sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide(CO), any other acid vapor, mercury, steam and unreacted nitrogen from industrial plants (coal and natural gas fired power plants, cement plants etc.), in a liquefied or frozen/solidified form, such that each of the components is captured separately and is industrially useful. This new technology includes a novel NH3 power plant to generate auxiliary electrical power from the heat energy of the flue gas to further improve the energy efficiency and cost effectiveness of the capture processes. It is the most cost effective of all existing emission capture technologies. It does not require use of any chemicals/reagents/external cryogens, unlike the current technologies.
    Type: Application
    Filed: March 7, 2018
    Publication date: June 6, 2019
    Inventors: Dilip Kumar De, Idowu Ayodele Oduniyi