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Patent Searching and Data


Title:
AUTOMOBILE EXHAUST EMISSION SYSTEM AND SECONDARY AIR INJECTION DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/074312
Kind Code:
A1
Abstract:
An automobile exhaust emission system and a secondary air injection device thereof. The secondary air injection device comprises an electric pump (6) that is controlled to be opened or closed through an electric control unit (4). An intake port (65) of the electric pump (6) is communicated with an air source, an exhaust port (63) of the electric pump (6) is communicated with an intake port of a combined valve (5), and an exhaust port of the combined valve (5) is communicated with an exhaust pipe or an exhaust manifold. The control end of the combined valve (5) is connected to a control valve (3), the control valve (3) is in signal connection to the electric control unit (4) and controls the combined valve (5) to be opened or closed, and the control valve (3) is communicated with an intake manifold through a negative pressure pipe (9). According to the system, by using the combination of the electric pump, the combined valve and the control valve and controlling the electric pump to be opened or closed through the electric control unit, automatic control over the secondary air injection device is realized.

Inventors:
RUAN RENYU (CN)
LI LONGCHAO (CN)
DU PENG (CN)
XU TAO (CN)
TENG JIANNAI (CN)
FENG WEIWEI (CN)
HOU YIBO (CN)
ZHANG LIANGCHAO (CN)
WANG JINYAN (CN)
YANG BING (CN)
ZHANG CHEN (CN)
ZHU DONGSHENG (CN)
Application Number:
CN2014/093932
Publication Date:
May 19, 2016
Filing Date:
December 16, 2014
Export Citation:
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Assignee:
ANHUI JIANGHUAI AUTOMOBILE CO (CN)
International Classes:
F01N3/22
Foreign References:
US4222237A1980-09-16
CN1525054A2004-09-01
US3919842A1975-11-18
US4583363A1986-04-22
US4033124A1977-07-05
CN103628966A2014-03-12
Attorney, Agent or Firm:
PACIFIC CHINA PATENT AGENT CO., LTD. (CN)
北京维澳专利代理有限公司 (CN)
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