US Patent Issued to AUDI on March 17 for "Method for monitoring a refrigerant fill-quantity in a refrigeration machine, refrigeration machine, and motor vehicle" (German Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,694, issued on March 17, was assigned to AUDI AG (Ingolstadt, Germany).

"Method for monitoring a refrigerant fill-quantity in a refrigeration machine, refrigeration machine, and motor vehicle" was invented by Thomas Mayer (Ingolstadt, Germany) and Mohamed Ayeb (Kassel, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for monitoring a refrigerant fill-quantity of a refrigeration machine, which includes a compressor for compressing the refrigerant, an expansion device for relieving the pressure of the refrigerant, a high-pressure heat exchanger through which the refrigerant is passed after compression by the compressor to transfer heat...