Extraction tube for emission measurement systems

Abstract

An extraction tube (1) for emission measurement systems for the exhaust gas of internal combustion engines has at least two exhaust gas extraction points (5) and connecting pieces to at least two sampling lines. In order to allow, with little required space and little constructional efforts, multiple sampling from the exhaust gas of internal combustion engines, at least two tubes (4) run parallel to each other over a portion of the length of the extraction tube (1), wherein each tube (4) is provided with an exhaust gas extraction point (5).

Dependencies are inferred from the claim text.