Urea supply mechanism, urea supply system and vehicle
A technology for supplying system and urea, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of low modularization integration, insufficient installation space, small occupied space, etc., to reduce costs, improve modularization and efficiency. The effect of integration and small footprint
Active Publication Date: 2021-12-03
FAW JIEFANG AUTOMOTIVE CO
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Problems solved by technology
[0004]
Based on this, it is necessary to provide a high modular integration and small footprint for the traditional urea supply mechanism, which has a low modular integration degree and takes up a large space, resulting in the limitation of other parts on the vehicle and insufficient installation space. The urea supply mechanism, urea supply system and vehicle
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[0033] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "...
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The invention relates to a urea supply mechanism, a urea supply system and a vehicle. The urea supply mechanism comprises a urea tank, an urea outlet pipeline, an air source, an air inlet pipeline, an air inlet valve, a back flushing pipeline and a back flushing valve, wherein the urea tank is used for storing a urea solution; one end of the urea outlet pipeline communicates with the urea tank, and the other end is used for spraying the urea solution; the air source is used for storing air; two opposite ends of the air inlet pipeline respectively communicate with the air source and the urea tank; the air inlet valve is arranged on the air inlet pipeline and located on one side of the urea tank; two opposite ends of the back flushing pipeline respectively communicate with the air source and the urea outlet pipeline; the back flushing valve is arranged on the back flushing pipeline, and the back flushing valve and the air inlet valve are closely arranged side by side; and one of the air inlet valve and the blow flushing valve is controlled to be opened, so that the air of the air source enters the air inlet pipeline or the back flushing pipeline alternatively. According to an urea supply machine, the air inlet valve and the back flushing valve are arranged in parallel and integrally, so that the modularization and the integration degree of the mechanism are improved. In addition, the air source can be used for urea solution spraying and accumulated urea solution cleaning operation at the same time, and the modularization and integration degree of the mechanism are further improved.
Description
technical field [0001] The present application relates to the technical field of vehicle emission treatment, in particular to a urea supply mechanism, a urea supply system and a vehicle. Background technique [0002] Vehicle engines will emit nitrogen oxides when they are working. These gases are harmful to the air and the human body. Humans absorbing nitrogen oxides for a long time will cause respiratory diseases. In order to solve this problem, the urea supply mechanism will be used to supply urea to the engine during the use of the engine. During the fuel combustion process, a chemical reaction will occur, and the nitrogen oxides will be converted into nitrogen and water will be discharged. Nitrogen and water are harmful to the atmosphere and Harmless to the human body. [0003] However, due to the low degree of modularization and integration of the traditional urea supply mechanism, it takes up a lot of space, resulting in limited arrangement of other components on the ...
Claims
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IPC IPC(8): F01N3/20F01N3/28
CPCF01N3/2066F01N3/2093F01N3/2006F01N3/28F01N2610/02F01N2610/1406F01N2610/1426F01N2610/148F01N2610/1486Y02A50/20
Inventor 于松乔朱宏志贾昭远韦安阳张洺源
Owner FAW JIEFANG AUTOMOTIVE CO