Modular tank system for a liquid reducing agent with a sump element and motor vehicle having the system

Abstract

A modular tank system for a liquid reducing agent includes three modules. A first module has a tank with a first opening and an opposite second opening. A second module has a cap element for holding at least one discharge tube. A third module has a sump element. The cap element is disposed in the first opening and the sump element is disposed in the second opening. A motor vehicle having the modular tank system is also provided.

1 . A modular tank system for a liquid reducing agent, the tank system comprising:
 at least three modules including:
 a first module having a tank with a first opening and a second opening; 
 a second module having a cap element disposed in said first opening for accommodating at least one discharge tube; and 
 a third module having a sump element disposed in said second opening; 
   said discharge tube being spatially fixed by said cap element and said sump element.   
     
     
         2 . The modular tank system according to  claim 1 , wherein said sump element forms a lowest point of said tank. 
     
     
         3 . The modular tank system according to  claim 1 , wherein said sump element is formed as a separate plastic part. 
     
     
         4 . The modular tank system according to  claim 1 , wherein said sump element is welded to said tank with a material bond. 
     
     
         5 . The modular tank system according to  claim 1 , wherein said sump element has structures reducing movements of the liquid reducing agent in vicinity of said sump element. 
     
     
         6 . The modular tank system according to  claim 1 , wherein said tank has a tank bottom, and said sump element has a holder for said discharge tube, said holder being configured for fixing said discharge tube at an angle of 45 to 90° to said tank bottom. 
     
     
         7 . The modular tank system according to  claim 1 , wherein said sump element has a holder for said discharge tube, and said holder forms a seat or fitting for said discharge tube. 
     
     
         8 . The modular tank system according to  claim 1 , wherein said sump element has a holder for said discharge tube, and said holder has a chamfer allowing said discharge tube to be pushed into said holder. 
     
     
         9 . The modular tank system according to  claim 1 , wherein said sump element is formed in one piece. 
     
     
         10 . A motor vehicle, comprising:
 a modular tank system according to  claim 1 .