ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,837, issued on Sept. 30, was assigned to Mahle International GmbH (Germany).
"Heating pump system" was invented by Dominik Behnert (Leonberg, Germany), Markus Boger (Stuttgart, Germany) and Matthias Jung (Stuttgart, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat pump system for a motor vehicle is disclosed. The heat pump system includes a refrigerant circuit that is flowable through by a refrigerant. The refrigerant circuit has a first partial circuit with a low pressure accumulator, a compressor, a heat pump heater, and an exterior heat exchanger. The refrigerant circuit has a second partial circuit with an evaporator and a chiller....