US Patent Issued to DANFOSS on April 22 for "Method for monitoring a refrigerant charge in a vapour compression system" (Danish Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,826, issued on April 22, was assigned to DANFOSS A/S (Nordborg, Denmark).

"Method for monitoring a refrigerant charge in a vapour compression system" was invented by Roozbeh Izadi-Zamanabadi (Nordborg, Denmark), Glenn Andreasen (Nordborg, Denmark) and Peter Reichwald (Nordborg, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for monitoring a refrigerant charge in a vapour compression system (1) is disclosed, the vapour compression system (1) including a compressor unit (2), a heat rejecting heat exchanger (3), a high pressure expansion device (4), a receiver (5), at least one expansion device (9, 10), and at least one evaporator (11, ...