Patents by Inventor Rolf Ekelund

Rolf Ekelund 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: 9400142
    Abstract: A heat exchanger plate, where the plate is provided with a heat transfer surface having a corrugated pattern, comprising a diagonal open and closed side distribution support section positioned between a diagonal open respectively closed groove and the heat transfer surface, and a diagonal open and closed side adiabatic support section positioned between the open respectively closed diagonal groove and a port hole, where the heat exchanger plate further comprises a transfer path between the diagonal open side distribution support section and the heat transfer surface and a bypass path between the diagonal closed side distribution support section and the heat transfer surface. A heat exchanger comprising a plurality of heat exchanger plates is also disclosed. The advantage of this heat exchanger plate is that it allows for heat exchangers with an improved efficiency.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: July 26, 2016
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Martin Holm, Rolf Ekelund, Jenny Rasmussen, Fredrik Blomgren
  • Publication number: 20110247790
    Abstract: A heat exchanger plate, where the plate is provided with a heat transfer surface having a corrugated pattern, comprising a diagonal open and closed side distribution support section positioned between a diagonal open respectively closed groove and the heat transfer surface, and a diagonal open and closed side adiabatic support section positioned between the open respectively closed diagonal groove and a port hole, where the heat exchanger plate further comprises a transfer path between the diagonal open side distribution support section and the heat transfer surface and a bypass path between the diagonal closed side distribution support section and the heat transfer surface. A heat exchanger comprising a plurality of heat exchanger plates is also disclosed. The advantage of this heat exchanger plate is that it allows for heat exchangers with an improved efficiency.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 13, 2011
    Applicant: ALFA LAVAL CORPORATE AB
    Inventors: Martin Holm, Rolf Ekelund, Jenny Rasmussen, Fredrik Blomgren
  • Patent number: 7669643
    Abstract: A device, including a heat exchanger plate and a plate package (2) of heat exchanger plates (1) which are provided beside each other to form a plate interspace between adjacent plates. The plate interspaces form, in an alternating order, first passages (3) for a first medium and second passages (4) for a second medium which cools the first medium. Each heat exchanger plate has at least two portholes forming a first inlet port channel and a first outlet port channel (7), which extend through the plate package to a first inlet and a first outlet, respectively, for the first medium to and from the first passages (3). The first outlet forms a gas outlet (31) for discharging a gaseous portion of the first medium and a liquid outlet (32) for discharge of liquid of the first medium. The liquid outlet (32) is separated from the gas outlet (31) to permit separate discharge of the liquid and gaseous portions.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: March 2, 2010
    Assignee: Alfa Laval Corporate AB
    Inventors: Rolf Ekelund, Rolf Christensen, Ingvar Lindholm
  • Publication number: 20050211421
    Abstract: The invention refers to a device, including a plate package (2) of heat exchanger plates (1) which are provided beside each other to form a plate interspace between adjacent plates, and a heat exchanger plate. The plate interspaces form in an alternating order first passages (3) for a first medium and second passages (4) for a second medium for cooling of the first medium. Each heat exchanger plate has at least two portholes forming a first inlet port channel and a first outlet port channel (7), which extend through the plate package to a first inlet and a first outlet, respectively, for the first medium to and from the first passages (3). The first outlet forms a gas outlet (31) for discharge of a gas of the first medium and a liquid outlet (32) for discharge of liquid of the first medium. The liquid outlet (32) is separated from the gas outlet (31) for permitting separate discharge of the liquid and gas.
    Type: Application
    Filed: May 19, 2003
    Publication date: September 29, 2005
    Inventors: Rolf Ekelund, Rolf Christensen, Ingvar Lindholm