| 摘要 |
#CMT# #/CMT# The method involves supplying a smoke trail material i.e. paraffin oil, to an exhaust strand (14) by a supply device (20), where the smoke trail material is based on paraffin. A fuel supply line (32) is removed for supplying the smoke trail material from a connection element (24) of the supply device, and a smoke trail material supply line (26) is attached to the connection element. A physical characteristic i.e. viscosity, of the smoke trail material is adapted to a corresponding physical characteristic of a fuel. #CMT# : #/CMT# An independent claim is also included for a method for testing the tightness of an exhaust gas system of a motor vehicle. #CMT#USE : #/CMT# Method for testing the tightness of an exhaust gas system of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The utilization of the smoke trail material provides color to the exhaust gas, so that leakages of the exhaust gas system are optically detectable in an easy manner. The smoke trail material i.e. paraffin oil, is supplied to the exhaust strand by the supply device, so that the exhaust gas system is not damaged, thus avoiding the need of protecting the components of the exhaust gas system against the contact with the paraffin oil during testing. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a device for testing tightness of an exhaust gas system of a motor vehicle. 12 : Internal combustion engine 14 : Exhaust strand 20 : Supply device 24 : Connection element 26 : Smoke trail material supply line 30 : Fuel tank 32 : Fuel supply line. |
