Patents by Inventor Per Gunnar Vikre

Per Gunnar Vikre 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).

  • High temperature subsea dynamic seals
    Patent number: 10253886
    Abstract: Systems and methods are described for processing a high-temperature process fluid using a processing machine in a subsea location while protecting dynamic seals within the machine. In some examples a small portion of the process fluid is cooled using a cooling system the cooled process fluid is then directed towards the dynamic seals. In other examples the dynamic seals are shielded and isolated from the high temperature process fluid and cooler barrier fluid is circulated within an enclosed volume in proximity to the seal.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 9, 2019
    Assignee: Framo Engineering AS
    Inventors: Robert Groette, Anders Brunvold, Per Gunnar Vikre, Haakon Jostein Grimstad
  • Contra rotating wet gas compressor
    Patent number: 9476427
    Abstract: A counter-rotating wet gas compressor for deployment and operation on the sea floor is described. The compressor has alternating rows of impellers, with each successive row of impellers being mounted a central hub or to an outer sleeve. According to some embodiments, no static diffusers are positioned between the alternating counter-rotating rows of impellers such that the design is structurally robust, compact and capable of compressing fluids that contain significant portions of liquid phase.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: October 25, 2016
    Assignee: FRAMO ENGINEERING AS
    Inventors: Bernt Helge Torkildsen, Per Gunnar Vikre, Hans Frederik Kjellnes
  • HIGH TEMPERATURE SUBSEA DYNAMIC SEALS
    Publication number: 20150377358
    Abstract: Systems and methods are described for processing a high-temperature process fluid using a processing machine in a subsea location while protecting dynamic seals within the machine. In some examples a small portion of the process fluid is cooled using a cooling system the cooled process fluid is then directed towards the dynamic seals. In other examples the dynamic seals are shielded and isolated from the high temperature process fluid and cooler barrier fluid is circulated within an enclosed volume in proximity to the seal.
    Type: Application
    Filed: February 12, 2014
    Publication date: December 31, 2015
    Applicant: FRAMO ENGINEERING AS
    Inventors: Robert GROETTE, Anders BRUNVOLD, Per Gunnar VIKRE, Haakon Jostein GRIMSTAD
  • Contra Rotating Wet Gas Compressor
    Publication number: 20140147243
    Abstract: A counter-rotating wet gas compressor for deployment and operation on the sea floor is described. The compressor has alternating rows of impellers, with each successive row of impellers being mounted a central hub or to an outer sleeve. According to some embodiments, no static diffusers are positioned between the alternating counter-rotating rows of impellers such that the design is structurally robust, compact and capable of compressing fluids that contain significant portions of liquid phase.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: FRAMO ENGINEERING AS
    Inventors: Bernt Helge Torkildsen, Per Gunnar Vikre, Hans Frederik Kjellnes