Title:
ENGINE EXHAUST AFTER-TREATMENT MIXING DEVICE, AFTER-TREATMENT DEVICE COMPRISING SAME, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/019726
Kind Code:
A1
Abstract:
Provided is an engine exhaust after-treatment mixing device (10), comprising a mounting base (12) for mounting a urea nozzle, and a mixing element (2). The mixing element (2) is used for mixing urea droplets and exhaust gas. The mixing element (2) comprises a mixing pipe (21), with the mixing pipe (21) being provided with several swirl blades (211), and further comprises a fine fiber element (3) located at the bottom of the mixing pipe (21), wherein the fine fiber element (3) is used for the exhaust gas and the urea droplets to pass through same, so as to further break up and evaporate the urea droplets. The engine exhaust after-treatment mixing device (10) has a relatively strong crystallization resistance capability for urea. Application of the fine fiber element in the engine exhaust after-treatment mixing device, and an engine exhaust after-treatment device are further provided.
Inventors:
LI JUNLIANG (CN)
WANG TIANYU (CN)
WANG TIANYU (CN)
Application Number:
PCT/CN2018/084376
Publication Date:
January 31, 2019
Filing Date:
April 25, 2018
Export Citation:
Assignee:
TENNECO SUZHOU EMISSION SYSTEM CO LTD (CN)
International Classes:
F01N3/20; F01N3/28
Domestic Patent References:
| WO2007080018A1 | 2007-07-19 | |||
| WO2009085641A1 | 2009-07-09 |
Foreign References:
| CN107165704A | 2017-09-15 | |||
| CN105673150A | 2016-06-15 | |||
| US20110023461A1 | 2011-02-03 | |||
| CN205714374U | 2016-11-23 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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