US Patent Issued to GM GLOBAL TECHNOLOGY OPERATIONS on June 30 for "Vehicle refrigerant system using hot gas bypass with vapor injection" (Michigan Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,100, issued on June 30, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Vehicle refrigerant system using hot gas bypass with vapor injection" was invented by Viraj Vartak (Ferndale, Mich.), Satish P. Ketkar (Troy, Mich.) and Nathan John English (Brighton, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vapor injection refrigerant system includes a compressor including at least first and second stage inputs, and an output arranged to provide output vapor refrigerant. A condenser is fluidly coupled to the output of the compressor to receive the output vapor refrigerant, and an evaporator is fluidly coupled between the condenser ...