Fuel tank

Abstract

A fuel tank is provided that is made of a plastics material. The fuel tank includes, but is not limited to an outer tank and a swirl pot arranged in the interior thereof. The edge of the swirl pot and the opening of the fuel tank are connected positively.

1 . A fuel tank made of plastics material, comprising:
 an opening;   a swirl pot arranged in an interior of the opening, wherein an edge of the opening is connected to an edge of the swirl pot in a material-uniting manner;   a flange associated with the opening; and   means for conveying liquid fuel fastened on the flange.   
     
     
         2 . The fuel tank according to  claim 1 , wherein the swirl pot and an outer tank defined by a remaining part of the fuel tank, are configured in one piece. 
     
     
         3 . The fuel tank according to  claim 2 , wherein the outer tank and the swirl pot form a blow-molded unit. 
     
     
         4 . The fuel tank according to  claim 1 , wherein the swirl pot and the outer tank are welded to one another in the region of the edge of the opening. 
     
     
         5 . The fuel tank according to  claim 4 , wherein the swirl pot is welded to an outer tank which is blow-molded around it. 
     
     
         6 . The fuel tank according to  claim 1 , wherein a base of the swirl pot is welded as a kiss-point. 
     
     
         7 . The fuel tank according to  claim 1 , further comprising a plurality of labyrinth walls arranged around the swirl pot and connected to the swirl pot in a material-uniting manner. 
     
     
         8 . The fuel tank according to  claim 1 , wherein the swirl pot has a volume of between about two and about five liters. 
     
     
         9 . The fuel tank according to  claim 1 , wherein a flange is associated with an opening and the means for conveying liquid fuel are fastened on the flange. 
     
     
         10 . The fuel tank according to  claim 8 , wherein the means for conveying liquid fuel comprise at least one of a fuel pump, a fuel filter, electrical connections for the fuel pump, connections for a fuel return pipe and a venturi tube. 
     
     
         11 . The fuel tank according to  claim 8 , wherein the flange is connected to a tank sensor. 
     
     
         12 . The fuel tank according to  claim 1 , further comprising a fuel conveying module on the base of the swirl pot. 
     
     
         13 . The fuel tank according to  claim 8 , wherein the fuel conveying module comprises at least one of a venturi tube, an ascending pipe, a valve, an overflow, tank sensors for the outer tank and swirl pot, communicating pipes, and a fuel filter. 
     
     
         14 . (canceled) 
     
     
         15 . A method of performing a fuel tank, comprising the steps of:
 extruding a plastic material hose;   moving a prefabricated swirl pot laterally from an outside against the plastics material hose; and   forcing compressed air into the plastic material hose.