排気浄化装置 - Subaru corporation

Title:

排気浄化装置

Document Type and Number:

Japanese Patent JP6788531

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To suppress deterioration of NOx occlusion efficiency.SOLUTION: An exhaust emission control device includes a nitrogen oxide occlusion catalyst disposed in an exhaust passage through which exhaust gas discharged from an engine passes and capable of occluding nitrogen oxide in the exhaust gas. The exhaust emission control device further includes: a branch passage provided upstream of the nitrogen oxide occlusion catalyst in the exhaust passage and merged with the exhaust passage after branched from the exhaust passage; a turbine provided in the branch passage and rotated by using kinetic energy of the exhaust gas; an outside air intake passage having one end connected to an intake port capable of taking in outside air and the other end connected to the upstream side of the turbine in the branch passage; a compressor provided in the outside air intake passage and rotated by the turbine; and a regulating valve for regulating a flow rate of the exhaust gas sent to the branch passage.SELECTED DRAWING: Figure 2

Inventors:

Akihiro Shiota
Sato thought
Hiroshi Akiyama

Application Number:

JP2017054661A

Publication Date:

November 25, 2020

Filing Date:

March 21, 2017

Export Citation:

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