Injection system used for purifying smoke discharge soot particles and control method

A technology of injection system and carbon particles, which is applied in the direction of electric control of exhaust treatment device, exhaust device, exhaust treatment, etc., can solve the problems of undescribed atomization effect, high processing cost, complex structure, etc., and achieve high injection Accuracy and stability, low manufacturing cost, and simple structure

Active Publication Date: 2017-08-18
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the patent does not describe how to achieve a good atomization effect and prevent coking
And this system structure is complex, the processing cost is higher

Method used

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  • Injection system used for purifying smoke discharge soot particles and control method
  • Injection system used for purifying smoke discharge soot particles and control method
  • Injection system used for purifying smoke discharge soot particles and control method

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Embodiment Construction

[0024] refer to figure 1 — Figure 4 , an injection system for purifying exhaust carbon particles, the injection system includes a controller 1 and an injector 7; the controller 1 is connected to the ECU 14; the injector 7 is connected to the exhaust pipe 17; wherein The controller 1 includes a switch solenoid valve 2, a metering valve 3, a first pressure sensor 4, a second pressure sensor 11, a controller upper housing 5 and a controller housing 6; the switch solenoid valve 2, metering The valve 3 and the first pressure sensor 4 are installed on the controller housing 6; the controller upper housing 5 is fastened on the controller housing 6 by screws and connected with the switching solenoid valve 2 and the metering valve 3; The second pressure sensor 11 described above is mounted on the controller upper casing 5; the injector 7 includes a nozzle 8 and a high-temperature insulation pad 9; the nozzle 8 is fixed on the exhaust pipe 17; the high-temperature insulation pad The ...

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PUM

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Abstract

The invention belongs to the technical field of vehicles, and particularly discloses an injection system used for purifying smoke discharge soot particles and a control method. The injection system comprises a controller and an injector, wherein the controller is connected with an ECU; the injector is connected with a gas exhaust tube; the controller comprises a on-off solenoid valve, a metering valve, a first pressure sensor, a second pressure sensor, a controller upper housing and a controller housing; the on-off solenoid valve, the metering valve and the first pressure sensor are mounted on the controller housing; the controller upper housing is fastened onto the controller housing; the second pressure sensor is mounted on the controller upper housing; and the controller is connected with the injector through a fuel oil pipeline. The injection system can realize stabilization of pressure for injecting fuel oil through the controller; precise control on fuel oil injection can be realized through the metering valve; the coking risk of a spray nozzle can be avoided through the structural design of the spray nozzle of the injection system; and moreover, the invention discloses the injection system used for purifying smoke discharge soot particles and the control method, and the injection system is simple in structure and is low in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and is used for diesel engines implementing national VI and later emission regulations, and specifically relates to an injection system and a control method for purifying exhaust soot particles. Background technique [0002] With the dieselization of automobiles and the increasingly stringent national emission regulations, it is extremely urgent to solve the emission problem of diesel engines. At present, diesel particulate filter (DPF) technology is widely used in the world to deal with the problem of soot emission from diesel engines. It can capture particulate emissions before they enter the atmosphere, thereby effectively reducing diesel particulate emissions. However, as the mileage increases, more and more particles are deposited in the trap, causing an increase in exhaust back pressure and deterioration of the engine's economy and power. Therefore, it is necessary to oxidize and burn ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/025F01N9/00
CPCF01N3/0253F01N9/00F01N2610/148F01N2610/146Y02T10/40
Inventor 尹燕升陈绍炎戈非邢喜春朱宏志李冠霖贾昭远马立张亮
Owner CHINA FIRST AUTOMOBILE
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