Air Conditioning Compressor Comprising a Differential Pressure Control Device

Abstract

An air conditioning compressor for air conditioning systems in motor vehicles, wherein the air conditioning compressor at the high pressure output comprises a check valve and a pressure control device, for example a pressure control valve or a bursting disk.

1 . An air conditioning compressor for air conditioning systems in motor vehicles, the air conditioning compressor at the high pressure output comprising a check valve and a pressure control device, for example a pressure control valve or a bursting disk, wherein the pressure control device is disposed downstream behind the check valve and that a differential pressure control device is disposed parallel in to the check valve. 
   
   
       2 . The air conditioning compressor according to  claim 1 , wherein the differential pressure control device acts in both flow directions, which is to say both in the flow direction from the air conditioning compressor into the air conditioning system, and also in the opposite flow direction. 
   
   
       3 . The air conditioning compressor according to  claim 1 , wherein the differential pressure control device is a valve device, which is to say it is reversible and reusable. 
   
   
       4 . The air conditioning compressor according to  claim 1 , wherein the differential pressure control device is a bursting disk. 
   
   
       5 . The air conditioning compressor according to  claim 4 , wherein the bursting disk is integrated in the check valve. 
   
   
       6 . The air conditioning compressor according to  claim 4 , wherein the pressure differential for triggering the bursting disk is greater than the pressure differential on the check valve. 
   
   
       7 . An air conditioning compressor according  claim 1 , wherein the differential pressure control device on the high pressure side of the air conditioning system connects the air conditioning compressor and the remaining high pressure side of the air conditioning system, which is to say both system parts, to the actual pressure control valve.