CN201835955U - Three-tank composited combined oil tank - Google Patents
Three-tank composited combined oil tank Download PDFInfo
- Publication number
- CN201835955U CN201835955U CN2010205746951U CN201020574695U CN201835955U CN 201835955 U CN201835955 U CN 201835955U CN 2010205746951 U CN2010205746951 U CN 2010205746951U CN 201020574695 U CN201020574695 U CN 201020574695U CN 201835955 U CN201835955 U CN 201835955U
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- CN
- China
- Prior art keywords
- reducing agent
- carbamide reducing
- casing
- control box
- electric control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model relates to a three-tank composited combined oil tank. A fuel oil tank body is located at one side of the oil tank, a urea reducing agent tank body is located at the upper part of the other side of the oil tank, and an electric control box is located at the lower part of the other side of the oil tank; the volume relationship between the fuel oil tank body and the reducing agent tank body is that L1/L2 is equal to 5 to 15, and the volume relationship between the reducing agent tank body and the electric control box is that h3/h2 is equal to 1; and a notch end cover buckling plate is arranged at one side of the electric control box. The three-tank composited combined oil tank realizes compact design, is beneficial for the beautiful design of a vehicle, reduces installation of connecting pieces, simplifies configuration of the vehicle and reduces the weight; moreover, the three-tank composited combined oil tank not only can meet the national requirements of SCR (selective catalytic reduction) standards higher than grade IV, but also can reduce the cost of a system.
Description
Technical field
The utility model relates to a kind of three casees compound combined type fuel tanks, is applied to the reprocessing industry of vehicle exhaust.
Background technique
In the coming years, the car manufactures, particularly US and European in the whole world will forcibly be implemented some severeer specifications about the emission compliance aspect of automobile nitrogen oxide NOx and particulate PM, for example, and Europe V and Europe VI emission standard.
Under the pressure of Abgasgesetz, external automobile-used heavy-duty diesel engine just constantly carries out technology upgrading and improvement on the one hand, on the other hand, select appropriate post-processing technology strategy and equipment, for example, SCR (Selective Catalytic Reduction) catalyzed conversion reduction technique, DPF(Diesel Particulate Filter) particle trap, DOC(Diesel Oxidation Catalyst) oxidation catalyst etc.
The essence of SCR technology is to utilize urea at high temperature to decomposite NH
3, as the NH of reducing agent
3With the NO in the engine exhaust
xUnder the comprehensive function of catalyzer and temperature, react, generate nontoxic N under the desirable operating mode
2And H
2O, thus reach the purpose of purification.SCR has lot of advantages, for example, can have 50～85% NO in the scope of delivery temperature 250～550 C of diesel-oil vehicle
xRemove efficient, and can effectively reduce the emission level of PM; SCR can easily satisfy Europe 4 and Europe 5 levels, also has the potentiality that reach Europe 6 levels; Reach the SCR technology that adopt in Europe 4 at present, the fuel oil consumption of motor can reduce by 3～6%; The SCR catalyzer does not contain precious metal, and cost is relatively low; SCR is to the quality of fuel oil for vehicles, and particularly Sulpher content is insensitive.Based on above analysis, the SCR post-processing technology is the vehicle condition and the fuel oil for vehicles situation of suitable China also.
If following apply the vehicle-mounted SCR post-processing technology, must resolve the vital technological difficulties such as atomized spray, SCR catalyzer conversion efficiency, ammonia amount of leakage of dosage, the carbamide reducing agent of carbamide reducing agent supply, carbamide reducing agent in China.
The SCR system of contrast offshore company, find it all is that notion with ' unit or module ' designs, for example, batching unit and control unit (DCU and ECU), promptly relevant signal measurement, feedback, control and actuator are integrated, help layout and installation on car load.But, the costing an arm and a leg of these unit.
Otherwise, if do not adopt the DCU and the ECU unit module of external import, and on the operator cabin and vehicle frame that the unit module of needed each function of SCR system or component are separately fixed at truck, not only take up room, and the layout of pipeline can seem in disorder, in addition, the fixing carriage of the carbamide reducing agent case 18kg that just weighs separately, the random layout of these unit modules or component is installed and is also easily produced reliability problems simultaneously.
Patent searching is found, is not also had patent of the same type to declare.
Summary of the invention
The purpose of this utility model is to provide a kind of three casees compound combined type fuel tanks, be on the basis of traditional automotive oil tank, carbamide reducing agent case and carbamide reducing agent dosage control box in the combination make a casing possess 3 kinds of functions, realize the design of compactness, the design for aesthetic that helps vehicle, reduce the installation of link, simplify vehicle configuration, reduce weight, the above SCR standard-required of state's IV can be satisfied, the cost of system can be reduced again.
The technical solution of the utility model is achieved in that three casees compound combined type fuel tanks, by accurate filter, accurate gas solenoid valve, accurate pressure maintaining valve, control unit, the liquid precision solenoid valve, carbamide reducing agent pipe before the pump and behind the pump, the carbamide reducing agent casing, Steel Support, the carbamide reducing agent case lid, fuel tank lock, the carbamide reducing agent liquid level sensor, the fuel oil casing, the carbamide reducing agent discharge valve, the fuel oil discharge valve, the assembled casing of turnover electric control box, the dosage pipe of carbamide reducing agent, power lead, the pressurized air supplying tube, the pressurized air output tube, temperature feedback signal line from catalytic converter, nitrogen oxide feedback signal line from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line of operator cabin, miniature liquid pump, the natural ventilation mouth, casing connects soldering point, seaming end cap buckle, electric control box constitutes; It is characterized in that: a side of fuel tank is the fuel oil casing, and the top of opposite side is the carbamide reducing agent casing, and the bottom is an electric control box; The volume capacity of fuel oil casing and reducing agent casing concerns L1/L2=5 ~ 15, the capacity relationship h3/h2=1 of reducing agent casing and electric control box; One side of electric control box is provided with seaming end cap buckle.
Described fuel oil casing top is provided with fuel tank lock, and the bottom is provided with the fuel oil discharge valve.
Described carbamide reducing agent case case bottom is fixed with carbamide reducing agent liquid level sensor and carbamide reducing agent discharge valve, and the top is provided with the carbamide reducing agent case lid.
Comprise gas-liquid electricity three tunnel in the described electric control box; The electric control box lower shoe is fixed with control unit, the input of the signal of control unit is from the temperature feedback signal line of catalytic converter with from the nitrogen oxide feedback signal line of catalytic converter, the control unit output signal is the voltage change that drives miniature liquid pump, regulate the magnitude of voltage of liquid precision solenoid valve, regulate the magnitude of voltage of accurate gas solenoid valve, and the carbamide reducing agent liquid level warning signaling line that is input to operator cabin.
Described electric control box connects the side that soldering point is connected the carbamide reducing agent case with casing, is fixedly connected with accurate filter, accurate gas solenoid valve, accurate pressure maintaining valve and liquid precision solenoid valve in the tank wall both sides respectively by Steel Support; Be arranged on the miniature liquid pump in the electric control box and connect before the pump and carbamide reducing agent Guan Yiduan behind the pump, its other end is located in the carbamide reducing agent casing;
The proportionate relationship of the height h1 of described carbamide reducing agent liquid level sensor and the height h2 of reducing agent casing is h1/h2=1/5; The carbamide reducing agent liquid level sensor is the conductivity type of double electrodes.
Described miniature liquid pump is gear pump or electromagnetic diaphragmpump.
Good effect of the present utility model is, adopt conventional automotive oil tank to carry out the transformation of structure, make it to become three casees, be that fuel tank, urea reduction cabinet and ECU (Electrical Control Unit) are case integrated, beautiful shape, convenient for maintaining has solved the installation and the Layout Problem of SCR system, more convenient realization modern production has very high reliability and use value.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a left TV structure schematic representation of the present utility model.
Fig. 3 is a right TV structure schematic representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described: as shown in Figure 1, three casees compound combined type fuel tanks are by accurate filter 1, accurate gas solenoid valve 2, accurate pressure maintaining valve 3, control unit 4, liquid precision solenoid valve 5, carbamide reducing agent pipe 6 before the pump and behind the pump, carbamide reducing agent casing 7, Steel Support 8, carbamide reducing agent case lid 9, fuel tank lock 10, carbamide reducing agent liquid level sensor 11, fuel oil casing 12, carbamide reducing agent discharge valve 13, fuel oil discharge valve 14, the assembled casing 15 of turnover electric control box 20, the dosage pipe 15-1 of carbamide reducing agent, power lead 15-2, pressurized air supplying tube 15-3, pressurized air output tube 15-4, temperature feedback signal line 15-5 from catalytic converter, nitrogen oxide feedback signal line 15-6 from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line 15-7 of operator cabin, miniature liquid pump 16, natural ventilation mouth 17, casing connects soldering point 18, seaming end cap buckle 19, electric control box 20 constitutes; It is characterized in that: a side of fuel tank is a fuel oil casing 12, and the top of opposite side is carbamide reducing agent casing 7, and the bottom is an electric control box 20; The volume capacity of fuel oil casing 12 and reducing agent casing 7 concerns L1/L2=5 ~ 15, the capacity relationship h3/h2=1 of reducing agent casing 7 and electric control box 20; One side of electric control box 20 is provided with seaming end cap buckle 19.
Described fuel oil casing 12 tops are provided with fuel tank lock 10, and the bottom is provided with fuel oil discharge valve 14.
7 casees bottoms of described carbamide reducing agent case are fixed with carbamide reducing agent liquid level sensor 11 and carbamide reducing agent discharge valve 13, and the top is provided with carbamide reducing agent case lid 9.
Comprise gas-liquid electricity three tunnel in the described electric control box 20; Electric control box 20 lower shoes are fixed with control unit 4, the input of the signal of control unit 4 is from the temperature feedback signal line 15-5 of catalytic converter with from the nitrogen oxide feedback signal line 15-6 of catalytic converter, control unit 4 output signals are the voltage changes that drive miniature liquid pump 16, regulate the magnitude of voltage of liquid precision solenoid valve 5, regulate the magnitude of voltage of accurate gas solenoid valve 2, and the carbamide reducing agent liquid level warning signaling line 15-7 that is input to operator cabin.
Described electric control box 20 usefulness casings connect the side that soldering point 18 is connected carbamide reducing agent case 7, are fixedly connected with accurate filter 1, accurate gas solenoid valve 2, accurate pressure maintaining valve 3 and liquid precision solenoid valve 5 in the tank wall both sides respectively by Steel Support 8; Be arranged on the miniature liquid pump 16 in the electric control box 20 and connect before the pump and carbamide reducing agent pipe 6 one ends behind the pump, its other end is located in the carbamide reducing agent casing 7;
The proportionate relationship of the height h1 of described carbamide reducing agent liquid level sensor 11 and the height h2 of reducing agent casing 7 is h1/h2=1/5; Carbamide reducing agent liquid level sensor 11 is conductivity types of double electrodes.
Described miniature liquid pump 16 is gear pump or electromagnetic diaphragmpump.
Be that the selection material is SUS304 or SUS441 corrosion resistant plate, its thickness is 1.2mm ~ 1.5mm, at first according to the manufacturing process of fuel tank of vehicle, cut out plate, punching, roll bending, be welded according to size, fuel oil casing 12 and carbamide reducing agent casing 7 need be finished the sealing test of suppressing of 30min under the 0.08Mpa constant voltage, guarantee not have to leak; Needing at first to determine the capacity relationship h3/h2=1 of reducing agent casing 7 and electric control box 20, is not only the proportionate relationship of considering fuel oil and carbamide reducing agent dosage and consumption, also considers the reasonable disposition in space; The volume ratio of fuel oil casing 12 and carbamide reducing agent casing 7 can adopt L1/L2 to decide, its range L 1/L2=5 ~ 15, when L1/L2=5, the volume of fuel oil casing 12 is 10 times of carbamide reducing agent casing 7, when fuel oil casing 12 and carbamide reducing agent casing 7 are filled it up with liquid simultaneously, even under state's V standard, the carbamide reducing agent consumption is 1/20 o'clock of fuel consumption, can the travel vehicle mileage of two casees fuel oils of one case carbamide reducing agent, this situation is more suitable in the rare zone of carbamide reducing agent filling station distribution, but the undue expansion of the size of L2 is nonsensical; When L1/L2=15, the volume of fuel oil casing 12 is 30 times of carbamide reducing agent casing 7, when fuel oil casing 12 and carbamide reducing agent casing 7 are filled it up with liquid simultaneously, even under state's 4 standards, the carbamide reducing agent consumption is about 1/30 o'clock of fuel consumption, can the travel vehicle mileage of one case fuel oil of one case carbamide reducing agent, carbamide reducing agent and fuel oil can almost replenish filling simultaneously in the gas station, but, the size of L2 too reduces can bring new problem, and for the fuel tank of a gage length, its installing space on automobile is an almost fixed, for example, when L1/L2=40, the dimensions length of L2 is too small, not only the installation difficulty of case lid and liquid level sensor, also make the bulk of electric control box 20 too small, can't satisfy the demand of installation; Carbamide reducing agent case lid 9 on the carbamide reducing agent casing 7 can adopt special lid, to be different from fuel tank lock 10, one of its purpose is the difference of opening shape, to be different from circular hole on the fuel tank lock, prevent to add mutually between fuel oil and the carbamide reducing agent mistake, two of its purpose is that combination has the unidirectional vent valve of standard, can enter air by trace so that can be in the carbamide reducing agent case during liquid negative pressure, regulate pressure, in order to avoid produce negative pressure; The gap that the side plate of carbamide reducing agent casing 7 and seaming end cap buckle 19 keeps 1 ~ 2mm, the two does not directly link to each other, and when carrying out relevant maintenance operation, needs dismounting seaming end cap buckle 19 earlier; The drain pipe 6 of carbamide reducing agent and the liquid level sensor 11 of carbamide reducing agent are installed in bottom at carbamide reducing agent casing 7; The liquid level sensor 11 of carbamide reducing agent is the conductivity type sensor of double electrodes, when the proportionate relationship of the height h2 of the height h1 of carbamide reducing agent liquid level sensor 11 and reducing agent casing 7 just in time is h1/h2=1/5, resistance strengthens between the double electrodes, surpass after the setting, begin to report to the police, the prompting carbamide reducing agent need be added; Miniature liquid pump 16 is selected direct current gear pump or the diaphragm pump of 24V for use, so that be complementary with Vehicular accumulator cell; Control unit 4 also is to be power with the 24V Vehicular accumulator cell, built-in computer logic control program, dependence is from the temperature feedback signal line 15-5 of catalytic converter with from the nitrogen oxide feedback signal line 15-6 of catalytic converter, output signal is used for driving miniature liquid pump 16, synchronization regulation liquid precision solenoid valve 5 and accurate gas solenoid valve 2, and the carbamide reducing agent liquid level warning signaling line 15-7 that is input to operator cabin; Seaming end cap buckle 19 is to make according to the seaming technology of standard, need firmly be pressed into during installation, need knock separable gently from each edge seaming during dismounting; From this combination fuel tank back observation onboard is installed, fuel oil casing 12 arranges that onboard positions are apart from the distance of motor farthest, and carbamide reducing agent casing 7 and electric control box 20 arranges that onboard positions are nearest apart from motor, and this combined type fuel tank adopts carriage to be fixed on the vehicle frame; Carbamide reducing agent case lid 9 and fuel tank lock 10 are towards the outside, compartment; Finish the utility model with this thinking.
Claims (6)
1. three casees compound combined type fuel tanks are by accurate filter, accurate gas solenoid valve, accurate pressure maintaining valve, control unit, the liquid precision solenoid valve, carbamide reducing agent pipe before the pump and behind the pump, the carbamide reducing agent casing, Steel Support, the carbamide reducing agent case lid, fuel tank lock, the carbamide reducing agent liquid level sensor, the fuel oil casing, the carbamide reducing agent discharge valve, the fuel oil discharge valve, the assembled casing of turnover electric control box, the dosage pipe of carbamide reducing agent, power lead, the pressurized air supplying tube, the pressurized air output tube, temperature feedback signal line from catalytic converter, nitrogen oxide feedback signal line from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line of operator cabin, miniature liquid pump, the natural ventilation mouth, casing connects soldering point, seaming end cap buckle, electric control box constitutes; It is characterized in that: a side of fuel tank is the fuel oil casing, and the top of opposite side is the carbamide reducing agent casing, and the bottom is an electric control box; The volume capacity of fuel oil casing and reducing agent casing concerns L1/L2=5 ~ 15, the capacity relationship h3/h2=1 of reducing agent casing and electric control box; One side of electric control box is provided with seaming end cap buckle.
2. three casees compound combined type fuel tanks according to claim 1 is characterized in that described fuel oil casing top is provided with fuel tank lock, and the bottom is provided with the fuel oil discharge valve.
3. three casees compound combined type fuel tanks according to claim 1 is characterized in that described carbamide reducing agent case case bottom is fixed with carbamide reducing agent liquid level sensor and carbamide reducing agent discharge valve, and the top is provided with the carbamide reducing agent case lid.
4. three casees compound combined type fuel tanks according to claim 1 is characterized in that comprising in the described electric control box gas-liquid electricity three tunnel; The electric control box lower shoe is fixed with control unit, the input of the signal of control unit is from the temperature feedback signal line of catalytic converter with from the nitrogen oxide feedback signal line of catalytic converter, the control unit output signal is the voltage change that drives miniature liquid pump, regulate the magnitude of voltage of liquid precision solenoid valve, regulate the magnitude of voltage of accurate gas solenoid valve, and the carbamide reducing agent liquid level warning signaling line that is input to operator cabin.
5. three casees compound combined type fuel tanks according to claim 1, it is characterized in that described electric control box connects the side that soldering point is connected the carbamide reducing agent case with casing, is fixedly connected with accurate filter, accurate gas solenoid valve, accurate pressure maintaining valve and liquid precision solenoid valve in the tank wall both sides respectively by Steel Support; Be arranged on the miniature liquid pump in the electric control box and connect before the pump and carbamide reducing agent Guan Yiduan behind the pump, its other end is located in the carbamide reducing agent casing;
The proportionate relationship of the height h1 of described carbamide reducing agent liquid level sensor and the height h2 of reducing agent casing is h1/h2=1/5; The carbamide reducing agent liquid level sensor is the conductivity type of double electrodes.
6. three casees compound combined type fuel tanks according to claim 1 is characterized in that described miniature liquid pump is gear pump or electromagnetic diaphragmpump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205746951U CN201835955U (en) | 2010-10-25 | 2010-10-25 | Three-tank composited combined oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205746951U CN201835955U (en) | 2010-10-25 | 2010-10-25 | Three-tank composited combined oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835955U true CN201835955U (en) | 2011-05-18 |
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ID=44006060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205746951U Expired - Fee Related CN201835955U (en) | 2010-10-25 | 2010-10-25 | Three-tank composited combined oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629027A (en) * | 2013-12-09 | 2014-03-12 | 王笃林 | Novel spiral self-rotation anti-theft oil tank cover |
| CN104204436A (en) * | 2012-03-02 | 2014-12-10 | 排放技术有限公司 | Feed unit for a liquid additive for post-treating exhaust gas |
-
2010
- 2010-10-25 CN CN2010205746951U patent/CN201835955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204436A (en) * | 2012-03-02 | 2014-12-10 | 排放技术有限公司 | Feed unit for a liquid additive for post-treating exhaust gas |
| CN103629027A (en) * | 2013-12-09 | 2014-03-12 | 王笃林 | Novel spiral self-rotation anti-theft oil tank cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20191025 |