Staged particle sampling system for starting process of engine

• Main Authors: ZHANG FUWEI, LI HONGTAO, XIE FANGXI, HAN LINPEI, HONG WEI, SU YAN, WANG XINFENG, WANG YACHUAN, XU QUNJIE, CHEN JING
• Format: Patent
• Language: English
• Published: 08.04.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a staged particle sampling system for a starting process of an engine, and belongs to the technical field of engines. According to the particle sampling system for the starting process of the engine, the inlet end of a main exhaust pipe is fixedly connected with an engine exhaust pipe; an electromagnetic valve I is arranged at the outlet end of the main exhaust pipe; the inlet end of a branch exhaust pipe I, the outlet end of a branch exhaust pipe II and the inlet end of a branch exhaust pipe III are fixedly connected and communicated with one another; the outlet end of the branch exhaust pipe I is fixedly connected with the inlet of a sampling bag I; the outlet end of the branch exhaust pipe III is fixedly connected with the inlet of a sampling bag II; the inlet end of the branch exhaust pipe II is fixedly connected with a section between the engine exhaust pipe and the electromagnetic valve I of the main exhaust pipe and is communicated with the main exhaust pipe; an electromagnetic valve II is arranged in the middle of the branch exhaust pipe I; an electromagnetic valve III is arranged in the middle of the branch exhaust pipe II; an electromagnetic valve IV is arranged in the middle of the branch exhaust pipe III; the electromagnetic valve I, the electromagnetic valve II, the electromagnetic valve III and the electromagnetic valve IV are all controlled by an electric control unit. The staged particle sampling system for the starting process of the engine can be well applied to sampling exhaust discharged in the starting process of a gasoline engine, facilitates the measurement of particle mass and the analysis of particle components, and is simple in structure and convenient to use.