A method is described for operating a refrigerant circuit that includes a compressor (10) with a driveshaft (18) and one or more gas bearings (22) for supporting the driveshaft. The method includes operating the refrigerant circuit in a first mode which in...

The invention comprises a method pertaining to an air conditioning system for a vehicle, comprising: a) measuring the time t since an approved period of operation of the air conditioning system, b) comparing the measured time t with a predetermined first i...

There are provided a refrigeration cycle system which ensures adequate lubrication in a compressor and operates at a satisfactory coefficient of performance despite use of a working fluid containing a lubricant and a refrigerant that separate from each oth...

A variable capacity automotive refrigerant compressor (10) is provided with a pressure equalization passage (46) between the crankcase volume (12) and the suction passage (26) in the manifold to prevent a pressure imbalance between the two that could other...

A dual evaporator air conditioning system (20) and method for use therewith to cool air in front (10) and rear (12) portions of a cabin (14) of a vehicle (16). The dual evaporator air conditioning system (20) includes primary (28) and auxiliary (30) HVAC u...