Patent ID: 8387471

Claim:
A diluter for sampling of exhaust gas, of engines, comprising a primary capillary ( 1 ) connected to a primary stabilization chamber ( 2 ), which said primary stabilization chamber is kept at a pressure below ambient by means of a vacuum pump ( 9 ) connected to said primary stabilization chamber by means of a primary outlet duct ( 4 ) and where dilution air in said primary stabilization chamber is introduced by means of a primary dilution air duct ( 3 ) through a primary mixing tip, wherein there is provided an excess flowrate arrangement for providing an exhaust gas flowrate in excess of the sample flowrate in said capillary ( 1 ), which exhaust gas flowrate totally surrounds said capillary inlet tip, wherein said primary capillary ( 1 ) is immersed in the exhaust gas flowrate with said flowrate arrangement, wherein said diluter receives the exhaust gas via said primary capillary ( 1 ).