Patent ID: 7717002
Filing Date: 2010-05-18
Classification: G01N

Abstract:
1. An exhaust gas dilution device that dilutes exhaust gas for analyzing a substance contained in the exhaust gas, comprising an exhaust gas circulation pipe that circulates the exhaust gas, a mixing section that is arranged in a midstream of the exhaust gas circulation pipe and that has an orifice, and a dilution gas supply pipe that has an opening near the orifice at the mixing section and that supplies dilution gas to the exhaust gas circulation pipe, wherein the dilution gas supply pipe is arranged with spaced apart from the exhaust gas circulation pipe until it reaches the opening near the orifice wherein the exhaust gas circulation pipe comprises an exhaust gas supply pipe that supplies the exhaust gas prior to dilution, an exhaust gas transport pipe that circulates the exhaust gas after dilution and a connecting member that is arranged between the exhaust gas supply pipe and the exhaust gas transport pipe to connect the exhaust gas supply pipe, the exhaust gas transport pipe and the dilution gas supply pipe, and the mixing section is formed in the connecting member.