ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,886, issued on Sept. 8.
"Cooling system including hydraulic liquid-refrigerant compressors and expanders for delivering pressurized liquid to the compressors" was invented by Shay Cohen (Rehuvut, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A chiller includes a plurality of hydraulic compression units, each compression unit configured to compress a refrigerant at gaseous state with liquid and exhaust the compressed refrigerant; a condenser for condensing the compressed refrigerant; a plurality of expander units, each expander unit configured to expand condensed refrigerant into a vapor-liquid mixture, to displace liquid during expansion of ...