Patent ID: 8196302

Claim:
A method for manufacturing an air gap-insulated exhaust collector for an exhaust system of an internal combustion engine, in particular in a motor vehicle comprising: inserting individual gas-conducting components of a first inner shell body into one another in the region of at least one slide fit; performing a calibrating process, including reducing a cross section at least on the respective outer component, which is carried out in the region of at least one slide fit of this type when the components are inserted into one another; locating the gas-conducting components of the first inner shell body within a receiving space of an outer shell body forming a thermally insulating air gap between the gas-conducting components and the outer shell body; inserting individual gas-conducting components of a second inner shell body into one another in the region of at least one slide fit; performing a calibrating process, including reducing a cross section at least on the respective outer component of the second inner shell body, which is carried out in the region of at least one slide fit of this type when the components are inserted into one another; locating the first and second inner shell bodies within the receiving space; adding a partition within the receiving space separating the receiving space into first and second partial spaces; and locating the first inner shell body within the first partial space and locating the second inner shell body within the second partial space.