Auxiliary Protective Cooling System for Liquid Cooled Diesel Emissions System Components

Abstract

A system for providing auxiliary cooling of liquid cooled components of a diesel emissions system. The system would include an auxiliary coolant feed(s) connected in series and/or in parallel to a primary coolant feed(s) for the liquid cooled components. It would also include a computerized controller(s) configured to operate the auxiliary coolant feed(s) in response to an uncontrolled engine shutdown.

1 . A system for providing auxiliary cooling of liquid cooled components of a diesel emission system, the system comprising:
 an auxiliary coolant feed(s) connected in series and/or in parallel to a primary coolant feed(s) for the liquid cooled components; and   a computerized controller(s) configured to operate the auxiliary coolant feed(s) in response to an uncontrolled engine shutdown.   
     
     
         2 . The system of  claim 1 , wherein the auxiliary coolant feed comprises an auxiliary coolant pump(s). 
     
     
         3 . The system of  claim 2 , wherein the auxiliary coolant pump(s) is electrically driven. 
     
     
         4 . The system of  claim 2 , wherein the auxiliary coolant pump(s) is hydraulically driven. 
     
     
         5 . The system of  claim 2 , wherein the auxiliary coolant pump(s) is driven mechanically by a secondary system(s) outside of the system. 
     
     
         6 . The system of  claim 1 , further comprising a one-way valve(s) configured to prevent backflow through the primary coolant feed(s). 
     
     
         7 . The system of  claim 1 , further comprising a one-way valve(s) configured to prevent backflow through the auxiliary coolant feed(s) when the primary coolant feed(s) is in operation. 
     
     
         8 . The system of  claim 1 , wherein the primary coolant feed(s) and the auxiliary coolant feed(s) both utilize a common coolant reservoir(s). 
     
     
         9 . The system of  claim 1 , further comprising a temperature sensor(s) monitoring a temperature(s) within the emission system; and
 wherein the computerized controller(s) is configured to deactivate the auxiliary cooling feed(s) when the temperature(s) within the emission system falls below a threshold temperature(s).   
     
     
         10 . The system of  claim 1 , further comprising a timer(s); and wherein the computerized controller(s) is configured to deactivate the auxiliary coolant feed(s) when a validated time period(s) expires know to bring component temperature(s) below a threshold temperature(s).