Urea pump-urea filter built-in urea system
A filter and urea pump technology, which is used in mufflers, exhaust devices, machines/engines, etc., can solve the problems of battery power consumption, high price, and complex systems, and achieve the effect of reducing system costs.
Inactive Publication Date: 2011-04-20
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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[0009] Below in conjunction with accompanying drawing, the present invention will be further described: as figure 1 A urea pump-urea filter built-in urea system is shown, which consists of urea solution filling port 1, urea solution tank 2, water heating pipeline 3, urea solution temperature and level signal 4, atmospheric temperature signal 5, and 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 control valve 14, urea The filter 18, the urea pump 16, the atmospheric pipeline 15, and the urea infusion pipe 17 are composed of; it is characterized in that: the urea solution filling port 1 is arranged on the urea tank, the temperature and liquid level sensor 4, the heating pipeline 3; the urea tank 2 There is a urea filter 18 inside, the urea filter 18 is connected to the urea pump 16, the ECU control signal A8 ...
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The invention relates to a urea pump-urea filter built-in urea system, which is composed of a urea liquid filling port, a urea box, a water heating pipeline, a urea liquid temperature and liquid level signal, an atmosphere temperature signal, an SCR (Silicon Controlled Rectifier) inlet temperature signal, an NOx signal, a urea nozzle pressure signal, an ECU (Electronic Control Unit) control signal A, an ECU control signal B, an ECU control signal C, a urea injector, a urea injector cooling pipeline, a urea box heating control valve, a urea filter, a urea pump, a pipeline communicated to the atmosphere, and a urea infusion tube. The urea pump-urea filter built-in urea system is characterized in that the urea liquid filling port, a temperature and liquid level sensor and the heating pipeline are distributed on the urea box; the urea filter is arranged in the urea box and is connected with the urea pump; the ECU control signal A controls a urea box heating solenoid valve; the ECU control signal B controls the urea pump; and the ECU controls signal C controls the urea liquid injector. The invention can lower system cost, breaks through the situation that the international suppliers monopolize the field, and fives full play to the advantage of independent development.
Description
technical field [0001] The invention relates to a urea pump-urea filter built-in urea system, in particular to a 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 pump-urea filter built-in urea system, reduce costs, break the monopoly of international suppliers in this field, give full play to the advantag...
Claims
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Login to View More IPC IPC(8): F01N3/24F01N9/00B01D53/94B01D53/56
CPCY02T10/47Y02T10/40
Inventor 李骏邢喜春戈非
Owner FAW GROUP