Patents Assigned to Picoterm AB
  • Patent number: 8839634
    Abstract: An arrangement is disclosed for energy transformation under the utilization of an oscillating gas volume sustained by an energy supplying device. A gas compression creates an elevated temperature and a gas decompression creates a reduced temperature within the gas volume. One or more first valves are connected to the space, wherein the first valve is controllably actuatable to supply or extract thermal energy to or from the space during a compression stage. One or more second valve are further connected to the space, wherein the second valve is controllably actuatable to supply or extract thermal energy to or from the space during a decompression stage. A control unit is adapted to briefly permit actuation of the first valve and the second valve within mutually discrete time intervals.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: September 23, 2014
    Assignee: Picoterm AB
    Inventor: Bengt Seved Ovelius
  • Publication number: 20110243796
    Abstract: A method and an arrangement for phase conversion. The arrangement has a space including a working gas and is arranged to include a generated standing sound wave, whereby said sound wave is generated such that the sum of added and consumed wave energy is greater than or equal to zero. Furthermore, the arrangement has a valve mechanism for provision and outflow of a quantity of a working gas or composition, including at least one substance, in the space and is arranged to work synchronously with the generated sound wave. The generated sound wave exposes the working gas or composition to pressure and temperature changes, whereby a gas compression creates an elevated temperature and a gas decompression creates a reduced temperature; and whereby a phase conversion, caused by the pressure and temperature changes, is obtained.
    Type: Application
    Filed: November 26, 2009
    Publication date: October 6, 2011
    Applicant: PICOTERM AB
    Inventor: Bengt Ovelius
  • Publication number: 20100281900
    Abstract: The present invention encompasses an arrangement adapted for energy transformation under the utilisation of an oscillating gas volume gathered in a space, where the reciprocal oscillating movement of the gas volume within said space is sustained by an energy supplying device and where a gas compression caused by the oscillation makes for the creation of an elevated temperature within all or parts of said gas volume and where a gas decompression caused by the oscillation makes for the creation of reduced temperature within all or parts of said gas volume. There are connected to said space one or more first valve-related means, where said first valve-related means is controllably actuable by a control unit in order to supply or extract to or from said space thermal energy during a compression stage for said gas volume.
    Type: Application
    Filed: September 17, 2007
    Publication date: November 11, 2010
    Applicant: Picoterm AB
    Inventor: Bengt Seved Ovelius