Screw Compressor System for a Utility Vehicle

Abstract

A screw compressor system for a utility vehicle has at least one screw compressor, at least one screw compressor drive, at least one temperature probe and at least one control and regulation unit. The control and/or regulation unit is connected to the screw compressor drive and to the temperature probe and is designed and configured such that it controls, in accordance with a temperature threshold signal obtained from the temperature probe, the screw compressor drive with respect to a rotational speed.

1 - 9 . (canceled) 
     
     
         10 . A screw compressor system for a utility vehicle, comprising:
 at least one screw compressor;   at least one screw compressor drive;   at least one temperature sensor; and   at least one open-loop and/or closed-loop control unit, wherein   the open-loop and/or closed-loop control unit is connected to the screw compressor drive and to the temperature sensor,   the open-loop and/or closed-loop control unit is configured so as to control the screw compressor drive with regard to a rotational speed thereof in a manner dependent on a temperature threshold value signal received from the temperature sensor.   
     
     
         11 . The screw compressor system as claimed in  claim 10 , wherein
 the open-loop and/or closed-loop control unit is a constituent part of the screw compressor.   
     
     
         12 . The screw compressor system as claimed in  claim 10 , wherein
 the open-loop and/or closed-loop control unit is a constituent part of an air treatment system of the utility vehicle.   
     
     
         13 . The screw compressor system as claimed in  claim 10 , wherein
 the open-loop and/or closed-loop control unit is a constituent part of an engine or vehicle controller of the utility vehicle.   
     
     
         14 . The screw compressor system as claimed in  claim 10 , wherein
 the open-loop and/or closed-loop control unit is a separate open-loop and/or closed-loop control unit.   
     
     
         15 . The screw compressor system as claimed in  claim 10 , wherein
 the open-loop and/or closed-loop control unit is configured to deactivate the screw compressor drive upon receipt of a temperature threshold value signal that signals an overshooting of a predetermined temperature threshold value in the screw compressor.   
     
     
         16 . The screw compressor system as claimed in  claim 10 , wherein
 the open-loop and/or closed-loop control unit is configured to permit an activation of the screw compressor drive only if said open-loop and/or closed-loop control unit receives a temperature threshold value signal that signals an undershooting of a predetermined temperature threshold value in the screw compressor.   
     
     
         17 . The screw compressor system as claimed in  claim 10 , wherein
 the screw compressor system has no thermostat valve.   
     
     
         18 . The screw compressor system as claimed in  claim 17 , wherein
 the screw compressor system has no heat exchanger for oil cooling.   
     
     
         19 . The screw compressor system as claimed in  claim 10 , wherein
 the screw compressor system has no heat exchanger for oil cooling.