Patent AT-E399665-T1: [Translated] AIR CONDITIONING SYSTEM OF A VEHICLE FOR A SUPERCRITICAL COOLANT

The installation has a super critical refrigerant circuit (10) including gas cooler cooling a gaseous fluid compressed at pressure P1 by a compressor. A detent unit reduces the fluid pressure to obtain a liquidized state that is passed to an evaporator to form conditioned air. An electronic control device controls the magnitude of the fluid with a calculating function that utilizes two temperature variations of gas cooler. One of the temperature variations utilized by the calculating function of the electronic control device is obtained from the temperature of the refrigerant selected at an intermediate point of the gas cooler. An independent claim is also included for a procedure for estimation of the mass throughput of a super critical refrigerant circulating in an air-conditioning circuit.