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Patent Searching and Data


Title:
EXHAUST GAS AFTER-TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/171212
Kind Code:
A1
Abstract:
An exhaust gas after-treatment system (100), comprising an exhaust gas after-treatment injection system (200) and an exhaust gas after-treatment packaging system (300). The injection system (200) comprises a conveying system (203) used for pumping urea outward from a urea box (201), a common rail (204) connected to the conveying system (203), and at least one urea pump (11) and urea nozzle (12) integrated device (1) connected to the common rail (204). The integrated device (1) comprises a pump module (18) and a nozzle module (19). The pump module (18) comprises a motor housing assembly (181), a magnetic cover module (6), and a pump housing assembly (182). The motor housing assembly (181) comprises an electromagnetic shield (183) and a motor coil (111). The motor housing assembly (181) and the pump housing assembly (182) are fixed together by means of rolling or welding. The pump housing assembly (182) comprises an inlet channel (15) and an outlet channel (16) in communication with the pump (11). The outlet channel (16) is in communication with the nozzle module (19). The exhaust gas after-treatment system (100) has strong treatment capability and high control accuracy.

Inventors:
YANG ZHENQIU (CN)
FAN GAOFENG (CN)
CHEN GUOLI (CN)
PENG WEIBO (CN)
SONG HONGWEI (CN)
Application Number:
PCT/CN2017/110541
Publication Date:
September 27, 2018
Filing Date:
November 10, 2017
Export Citation:
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Assignee:
TENNECO SUZHOU EMISSION SYSTEM CO LTD (CN)
International Classes:
F01N3/20; F01N9/00
Foreign References:
CN105986860A2016-10-05
CN204267134U2015-04-15
CN105822394A2016-08-03
CN204312169U2015-05-06
CN103742383A2014-04-23
CN102588052A2012-07-18
CN204900239U2015-12-23
US20100313553A12010-12-16
CN203335460U2013-12-11
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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