Patents by Inventor Vilen N. Shpak

Vilen N. Shpak 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: 5425230
    Abstract: A gas distribution station with a power plant using the energy of the gas in a gas main (6) by removing gas from the gas main (6) and supplying the gas to a first heat exchanger (5) to be pre-heated by a back gas flow from a turbo-expander (1). From the heat exchanger (5), the gas flows to a second heat exchanger (4) to be heated by combusted gases of a gas turbine engine (3), and the heated gas then proceeds to the turbo-expander (1). The gas is expanded in the turbo-expander (1) which drives an electric generator (2) also drivingly connected to the gas turbine engine (3). The expanded and partially cooled gas from the turbo-expander flows to the heat exchanger (5) for pre-heating the gas withdrawn from the gas main and then into the gas main (6) downstream of a pressure reducer (7) at a temperature insignificantly above the temperature of the gas in the gas main (6) upstream of the pressure reducer (7).
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: June 20, 1995
    Assignee: Aktsionernoe Obschestvo "Kriokor"
    Inventor: Vilen N. Shpak