Patents Assigned to GRIMALDI DEVELOPMENT AB
  • Publication number: 20250167265
    Abstract: The present invention relates to a fuel cell stack arrangement (1) comprising a fuel cell stack (3) comprising a plurality of fuel cells (3?). Each fuel cell (3?) comprises an anode side (4) comprising a fuel inlet (5) and a fuel outlet (6), a cathode side (7) comprising an air inlet (8) and an air outlet (9), and an electrolyte (24) arranged between the anode side (4) and the cathode side (7). The fuel cell stack arrangement (1) further comprises a cathode air intake (10) arranged upstream from the air inlet (8), a cathode air compressor (11) arranged downstream from the cathode air intake (10) and a hydrogen gas storage tank (12) arranged upstream from the fuel inlet (5). The fuel cell stack arrangement (1) further comprises a first separating unit (13) comprising at least one disc stack separator (14) and being arranged between the cathode air intake (10) and the air inlet (8).
    Type: Application
    Filed: February 22, 2023
    Publication date: May 22, 2025
    Applicant: GRIMALDI DEVELOPMENT AB
    Inventors: Francesco Zitarosa, Christoph Erdmann, Claes Inge, Peter Franzén, Carl Petrus Häggmark, Dan Öivind Karlsson
  • Patent number: 12076686
    Abstract: Method and apparatus for cleaning an air flow from particles, such as bacteria and other microorganisms. According to the invention, an aerosol of liquid droplets is generated in the air flow, whereafter the liquid droplets and the air flow are mixed and the droplets and particles are centrifugally separated from the air flow.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 3, 2024
    Assignee: GRIMALDI DEVELOPMENT AB
    Inventors: Claes Inge, Peter Franzén, Carl Petrus Häggmark
  • Patent number: 11660610
    Abstract: A turbine having a turbine wheel, as used for example as a drive for active oil separators, and to a liquid separator having such a turbine is described.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 30, 2023
    Assignee: GRIMALDI DEVELOPMENT AB
    Inventors: Maximilian Birk, Christoph Erdmann, Petr Polednak, Francesco Zitarosa