Gasoline engine exhaust gas system having a particulate filter

Abstract

A method for producing a gasoline engine exhaust gas system having a particulate filter includes using at least one spacer for positioning at least two components provided for the passage of exhaust gas from the engine. The spacer includes ash-forming constituents. The method then includes permanently connecting the components, and burning the spacer element during a first heating up of the exhaust gas system, thereby releasing the ash-forming constituents and depositing the ash-forming constituents on the particulate filter. An exhaust gas system of a gasoline engine also is provided in a state before a first heating up of the exhaust gas system. The exhaust gas system includes a burnable spacer element between two exhaust gas system components that are provided for the passage of exhaust gas. The burnable spacer elements include ash-forming constituents.

What is claimed is: 
     
         1 . An exhaust gas system of a gasoline engine in a state before a first heating up of the exhaust gas system, comprising:
 at least first and second exhaust gas system components defining parts of a passage for exhaust gas from the engine, the components being connected permanently in the passage, the first component being arranged between an outlet valve of the gasoline engine and a particulate filter, the second component being downstream of the first component; and   at least one burnable spacer element arranged between the first and second components and positioning the first and second components, the at least one spacer element including ash-forming constituents.   
     
     
         2 . The exhaust gas system of  claim 1 , wherein the at least one spacer element is composed of plastic with ash-forming constituents or paper with ash-forming constituents. 
     
     
         3 . The exhaust gas system of  claim 1 , wherein the at least one spacer element is a ring arranged between the first and second components. 
     
     
         4 . The exhaust gas system of  claim 1 , wherein the at least one spacer element is arranged between the particulate filter and a catalytic converter.