| 摘要 |
<p>The present invention relates to a composition including 2,3,3,3-tetrafluoropropene, difluoromethane and at least one compound chosen among propane, propylene and ethylene, suitable for being used for refrigeration, air-conditioning and heating. The present invention also relates to a method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including said composition. Said method is particularly suitable when the outside temperature is lower than−20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles.</p> |
