Cooling device for a working fluid

Abstract

Cooling device and method for cooling a working fluid of a high-pressure pump with a pressure booster. The cooling device includes a conveyor system comprising at least one pump, at least two heat exchangers arranged in series along the conveyor system, and at least two switches coupled to the at least two heat exchangers. At least one controller is structured and arranged to selectively activate and deactivate the at least two heat exchangers via the at least two switches at an adjustably preset temperature of the working fluid.

1 . A cooling device for a working fluid of a high-pressure pump with a pressure booster, comprising:
 a conveyor system comprising at least one pump;   at least two heat exchangers arranged in series along the conveyor system;   at least two switches coupled to the at least two heat exchangers; and   at least one controller structured and arranged to selectively activate and deactivate the at least two heat exchangers via the at least two switches at an adjustably preset temperature of the working fluid.   
     
     
         2 . The cooling device in accordance with  claim 1 , wherein the at least two heat exchangers comprise a first heat exchanger operable via air flowing through and a second heat exchanger operable via water flowing through. 
     
     
         3 . The cooling device in accordance with  claim 1 , wherein one of the at least two heat exchangers is activated by one of electric motors and hydraulic motors. 
     
     
         4 . The cooling device in accordance with  claim 3 , wherein the hydraulic motors are switched in series along the conveyor system. 
     
     
         5 . The cooling device in accordance with  claim 1 , wherein one of the at least two heat exchangers is activated by impingement with water via a valve. 
     
     
         6 . The cooling device in accordance with  claim 1 , wherein the at least two switches comprise a switch having an on/off function. 
     
     
         7 . The cooling device in accordance with  claim 1 , wherein the pump is arranged in active engagement with a drive motor for the high-pressure pump with the pressure booster. 
     
     
         8 . A method of cooling a working fluid in the cooling device in accordance with  claim 1 , the method comprising:
 selectively activating at least one of the at least two heat exchangers along the conveyor path.   
     
     
         9 . A high-pressure pump with pressure booster having the cooling device in accordance with  claim 1 . 
     
     
         10 . A method of cooling a working fluid of a high-pressure pump with a pressure booster, the method comprising:
 conveying a working fluid along a conveyor path of a cooling circuit;   switchably activating a first heat exchanger arranged along the conveyor path when a temperature of the working fluid exceeds a first predetermined temperature; and   switchably activating a second heat exchanger arranged in series with the first heat exchanger along the conveyor path when a temperature of the working fluid exceeds a second predetermined temperature,   wherein the first and second predetermined temperatures are adjustable.   
     
     
         11 . The method in accordance with  claim 10 , wherein the first predetermined temperature is greater than the second predetermined temperature. 
     
     
         12 . The method in accordance with  claim 11 , switchably deactiving the first heat exchanger when the temperature of the working fluid is below a first predetermined low temperature. 
     
     
         13 . The method in accordance with  claim 11 , further comprising switchably deactivating the high pressure pump when a temperature of the working fluid exceeds a third predetermined temperature that is greater than the second predetermined temperature. 
     
     
         14 . The method in accordance with  claim 10 , wherein the first heat exchanger uses air. 
     
     
         15 . The method in accordance with  claim 10 , wherein the second heat exchanger uses water.