Assembly integration wiring harness device used for engine posttreatment
A technology that integrates wiring harnesses and engines. It is used in the electronic control of exhaust treatment devices, diagnostic devices of exhaust treatment devices, and engine components. It can solve problems such as difficulty, misassembly, and failure, and ensure accuracy and consistency. , The effect of simple wiring harness layout and strong versatility
Pending Publication Date: 2019-12-17
WUXI WEIFU LIDA CATALYTIC CONVERTER
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Problems solved by technology
[0002] The National V after-treatment assembly only integrates the exhaust temperature sensor seat, nitrogen and oxygen sensor seat, urea nozzle, etc., and the corresponding sensors and their accessories, wiring harness, etc. need to be installed by the OEM itself, and there will be misinstallation during assembly by the OEM, resulting in The DPF cannot be regenerated normally, the urea cannot be injected normally, and there are problems such as the wiring harness arrangement of the sensor is disordered, which leads to failure.
The national six-stage after-treatment system makes the wiring harness layout of the vehicle more complicated and difficult
Method used
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[0022] The present invention will be further described below in conjunction with specific examples.
[0023] The assembly integrated wiring harness device for engine post-treatment according to the present invention includes a DOC oxidation catalyst 1, a DPF diesel particulate filter 2, a urea mixer 3 and an SCR catalytic reduction device 4 connected in sequence. The front end of the device 1 is fixed with an intake pipe, a urea nozzle 12 is installed on the urea mixer 3, and an exhaust pipe is fixed at the rear end of the SCR catalytic reduction device 4;
[0024] DOC upstream NO is fixed at the front end of the DOC oxidation catalyst 1. X The sensing probe 71 and the DOC upstream exhaust temperature sensing probe 81 are fixed with a double-ended wire harness connector 91 on the DOC oxidation catalyst 1, and the first wire harness 19 in an overhead arrangement is connected to the DOC upstream exhaust temperature sensing probe 81 , one end of the double-ended wire harness con...
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The invention relates to an assembly integration wiring harness device used for engine posttreatment. A diesel oxidization catalyst (DOC), a diesel particulate filter (DPF), a urea mixer and a selective catalytic reducer (SCR) which are connected in sequence are included; a gas inflow pipe is fixed to the front end of the DOC, and a urea spray nozzle is installed on the urea mixer; an exhaust pipeis fixed to the rear end portion of the SCR; a DOC upstream NOX sensing probe and a DOC upstream exhausting temperature sensing probe are fixed to the front end portion of the DOC; a double-head wiring harness inserting and connecting piece is fixed to the DOC; first wiring harnesses arranged in an erected manner are connected to the DOC upstream exhausting temperature sensing probe; and a wiringhardness gathering connecting and inserting piece is inserted and connected to one end of the double-head wiring harness inserting and connecting piece. According to the assembly integration wiring harness device used for engine posttreatment, after all the first wiring harnesses are gathered, the first wiring harnesses are connected into the wiring harness gathering connecting and inserting piece which is inserted and connected with the double-head wiring harness inserting and connecting piece, the plug and play function is achieved, wiring harness arrangement is easy, and installing is convenient.
Description
technical field [0001] The invention relates to the technical field of aftertreatment devices for diesel engines, in particular to an assembly-integrated wiring harness device for aftertreatment of engines. Background technique [0002] The National V after-treatment assembly only integrates the exhaust temperature sensor seat, nitrogen and oxygen sensor seat, urea nozzle, etc., and the corresponding sensors and their accessories, wiring harness, etc. need to be installed by the OEM itself, and there will be misinstallation during assembly by the OEM, resulting in The DPF cannot be regenerated normally, the urea cannot be injected normally, and there are problems such as the wiring harness arrangement of the sensor is disordered, which leads to failure. The national VI post-processing system makes the wiring harness layout of the vehicle more complicated and difficult. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies ...
Claims
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IPC IPC(8): F01N11/00F01N13/00F01N13/08B60R16/02
CPCF01N11/00F01N11/002F01N13/008F01N13/08B60R16/0207Y02A50/20Y02T10/40
Inventor 胡婷刘洋徐超徐文清段一军徐浩兴周磊
Owner WUXI WEIFU LIDA CATALYTIC CONVERTER