Urea filter-urea pump built-in urea system
A urea pump and filter technology, applied in the direction of mufflers, exhaust devices, machines/engines, etc., can solve the problems of battery power consumption, high price, complex system, etc., and achieve the effect of reducing system cost
Inactive Publication Date: 2011-06-01
FAW GROUP
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Problems solved by technology
[0002] At present, the mature urea solution supply and injection systems are all produced by foreign companies, some adopt diaphragm pump structure, some adopt gear pump structure, urea pump and urea filter are placed outside the urea tank, and electric heating is used at low temperature. To prevent the urea solution from freezing at low temperature, the system is complex and consumes battery power
The system is complicated and the price is high, all of which are system suppliers, and do not agree to break the system as a component supplier
Method used
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[0010] Below in conjunction with accompanying drawing, the present invention will be further described: as figure 1 As shown, a urea filter-urea pump built-in urea tank SCR urea injection system consists of urea solution filling port 1, urea tank 2, water heating pipeline 3, urea solution temperature and level signal 4, atmospheric temperature Signal 5, SCR inlet temperature signal 6, NOx signal 7, urea nozzle pressure signal 10, ECU control signal A8, ECU control signal B9, ECU control signal C11, urea injector 12, urea injector cooling pipeline 13, urea tank heating It consists of a solenoid valve 14, a urea filter 18, a urea pump 16, an atmospheric pipeline 15, and a urea infusion tube 17; it is characterized in that a urea solution filling port 1 is arranged on the urea tank 2, a temperature and liquid level sensor 4, and a heating Pipeline 3, urea solution tank 2 is equipped with urea solution pump 16, urea solution pump 16 is connected with urea solution filter 18, ECU c...
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The invention relates to a urea filter-urea pump built-in urea system, which consists of a urea liquid injection port, a urea tank, a water heating pipeline, a urea liquid temperature and liquid level signal, an atmospheric temperature signal, a semiconductor control rectifier (SCR) inlet temperature signal, a NOx signal, a urea nozzle pressure signal, an electronic control unit (ECU) control signal A, an ECU control signal B, an ECU control signal C, a urea ejector, a urea ejector cooling pipeline, a urea tank heating control valve, a urea filter, a urea pump, an atmosphere through pipeline and a urea liquid transport pipe. The system is characterized in that: the urea liquid injection port, a temperature and liquid level sensor and the heating pipeline are arranged on the urea tank; the urea pump is arranged in the urea tank, and the urea pump is connected with the urea filter; and the ECU control signal A controls a urea tank heating electromagnetic valve, the ECU control signal B controls the urea pump, and the ECU control signal C controls the urea liquid ejector. The cost of the system can be reduced, the situation that the international provider monopolizes the field is broken, and the advantage of autonomous development is fully exerted.
Description
technical field [0001] The invention relates to a urea filter-urea pump built-in urea system, in particular to a urea filter-urea pump built-in urea tank SCR urea injection system. Background technique [0002] At present, the mature urea solution supply and injection systems are all produced by foreign companies, some adopt diaphragm pump structure, some adopt gear pump structure, urea pump and urea filter are placed outside the urea tank, and electric heating is used at low temperature. To prevent the urea solution from freezing at low temperature, the system is complicated and consumes the electric energy of the battery. The system is complicated, the price is high, and they are all system suppliers, and they do not agree to break the system as a component supplier. Contents of the invention [0003] The purpose of the present invention is to provide a urea filter-urea pump built-in urea system, which can reduce costs, break the monopoly of international suppliers in t...
Claims
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IPC IPC(8): F01N3/20F01N9/00B01D53/94B01D53/56
CPCY02T10/47Y02T10/40
Inventor 李骏邢喜春戈非吴君华
Owner FAW GROUP