CN203730234U - Energy storage type supercharging electromagnetic plunger pump for SCR emission reduction system and metering injection system - Google Patents

Energy storage type supercharging electromagnetic plunger pump for SCR emission reduction system and metering injection system Download PDF

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Publication number
CN203730234U
CN203730234U CN201420043236.9U CN201420043236U CN203730234U CN 203730234 U CN203730234 U CN 203730234U CN 201420043236 U CN201420043236 U CN 201420043236U CN 203730234 U CN203730234 U CN 203730234U
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China
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energy storage
storage type
type supercharging
pump
plunger
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CN201420043236.9U
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Chinese (zh)
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郝庆军
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Suzhou Powergreen Emission Solution System Co Ltd
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Suzhou Powergreen Emission Solution System Co Ltd
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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

Abstract

The utility model relates to an energy storage type supercharging electromagnetic plunger pump for an SCR emission reduction system and a metering injection system. The energy storage type supercharging electromagnetic plunger pump comprises an electromagnetic power device and a plunger sleeve assembly, wherein the plunger sleeve assembly is provided with a high-pressure fluid chamber, a low-pressure fluid chamber is formed between the electromagnetic power device and the plunger sleeve assembly, and the electromagnetic power device comprises a moving portion, a static portion and an energy storage device. According to the energy storage type supercharging electromagnetic plunger pump for the SCR emission reduction system and the metering injection system, the electromagnetic power device drives the moving portion to do work, part of energy generated by doing work is used for pumping, the other part of the energy generated by doing work is stored in a spring; according to the pressure buildup step of the plunger sleeve assembly, magnetic energy and the energy stored in the spring in advance are released after being superposed, the pressure output by the plunger pump is increased, the energy storage type supercharging electromagnetic plunger pump has the simplified structure mode which integrates pumping, supercharging and metering, a urea tank and the energy storage type supercharging electromagnetic plunger pump can be separated or integrated through diversified arrangement of the SCR metering injection system of the energy storage type supercharging electromagnetic plunger pump, and the energy storage type supercharging electromagnetic plunger pump can be applied to an SCR metering injection system without air assistance, and can also be applied to an SCR metering injection system with air assistance.

Description

For energy storage type supercharging electromagnetic plunge pump and the metering injection system of SCR emission-reducing system
Technical field
The utility model relates to motor emission-reducing system technical field, specifically refers to a kind of energy storage type supercharging electromagnetic plunge pump and metering injection system for SCR emission-reducing system.
Background technique
Along with more and more higher to environmental protection requirement of society, country is increasing to the dynamics of environmental protection, has put into effect relevant policies with regard to vehicular emission aspect national correlation department, and the especially implementation of " state IV standards " is stricter to vehicular emission control.Existing known, selective catalytic reduction technology (SCR) is the main flow route of motor-vehicle tail-gas post-processing technology, (be aqueous solution of urea by reducing agent, in industry, be called " adding indigo plant ") by nozzle quantitative injection intake and exhaust pipeline, and pass through SCR catalyzer by the main harmful the GN 2 oxygen compounds (NO in waste gas 1, NO 2deng, be referred to as NO x) change into the discharge of nitrogen G&W, reach the object of tail gas clean-up.
But, in specific implementation process, because the kinetic pump module that cannot overcome aqueous solution of urea pumping function possesses suction, supercharging, metering, atomizer nozzle, the integrated requirement of cheapness, make many existing SCR metering injection system power plant modules can only adopt the diaphragm pump that pressure is lower, gear pump etc., and also must coordinate metering valve and stable-pressure device etc. just can reach SCR suction and the basic demand of measuring, cannot take into account this power unit to having or without the versatility of air-assisted atomization requirement simultaneously, and then the SCR metering injection system that makes maturation on existing market simplifies structure and price reduction measure is had difficulty in taking a step, all the time rest on and utilize after low-pressure suction during the route of air-assisted atomization and two line of falls of high pressure direct injection atomization hover.Simultaneously because unit powered by conventional energy also exists following problem:
1) pressure that power unit is built such as conventional scr metering injection system diaphragm pump used is on the low side, generally lower than 1MPa, and it is long to build the pressure time, pressure surge is large, therefore be difficult to guarantee the foundation of nozzle atomization effect, also the large disadvantage of spray nozzle clogging probability while being difficult to avoid pressure lower, the function of measuring of diaphragm pump is difficult to guarantee precision simultaneously.
2) delivery pressure is unstable, needs extra voltage stabilizing measure;
3) cannot accomplish suction build after pressure, can realize as required the object of supercharging object, accurate measurement, even with nozzle integrate object;
4) because the power unit of conventional scr product adopts brushless electric machine more, accurately control therefore be difficult for realizing metering by the control of motor, realize and can only supplement metering valve by output;
5) SCR metering injection system forms complexity, and cost limited space, is unfavorable for the popularization of product.
In a word, the problems referred to above and contradiction are that current SCR mechanical type diaphragm pump or gear pump are intrinsic, are difficult to suction, supercharging, metering, injection, cheapness to be integrated into a power plant module, and thoroughly solve and just need to select new kinetic pump unit.
Comparatively speaking, if with energy storage type supercharging electromagnetic plunge pump described in the utility model, there are not the problems referred to above.Because the utility model adopts energy storage type supercharging electromagnetic plunger pump structure, can reach the accurate measurement to plunger pump by displacement and the reciprocal time of plunger by adhesive frequency and the size of current control electromagnetic coil suction of controlling electromagnet, and can control electromagnet and use the reciprocating direct drive unit of electric energy and spring mechanism energy storage principle, the acting energy of full phase place is used for to suction in a suction link part, and another part utilizes spring assembly to store, then suppressing link at plunger will all discharge after magnetic energy and previously spring energy-storage stack, and then to improve the transient energy density of suppressing output element solenoid actuated plunger assembly, improve the pressure of this pump output aqueous solution of urea.
Therefore adopt the advantage of energy storage type supercharging electromagnetic plunge pump to comprise: can require to set up rapidly high pressure according to SCR metering injection system; Can increase voltage stabilizing volume or introduce stable-pressure device (as buffer or relief valve, reduction valve etc.) at high-pressure output port without restriction, the fluctuation of power delivery pressure is significantly reduced, spray to realize constant voltage; Metering that can be more accurate is also supplied aqueous solution of urea as required; Structure can be changed easily, meet the layout requirement of multiple SCR metering injection system; Electromagnetic drive type is built and is pressed efficiency lower than the direct driving of mechanical type, and cost is lower; Can realize easily jet atomization device integrating, make pump module possess the tactic pattern of simplifying that suction, supercharging, metering be integrated.In a word, adopt energy storage type supercharging electromagnetic plunge pump have gas or mean a great without the versatility of gas realizing the economic simplified structure of SCR metering injection system and improving.
Model utility content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provides that a kind of structure is simplified, suction effect is good, is suitable for multiple SCR and reduces discharging energy storage type supercharging electromagnetic plunge pump and the metering injection system for SCR emission-reducing system of ejecting system.
For achieving the above object, the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system of the present utility model and metering injection system are by the following technical solutions:
This is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system, its main feature is, comprise electromagnetic motive device and plunger guide bush assembly, described plunger guide bush assembly has high pressure sap cavity, between described electromagnetic motive device and described plunger guide bush assembly, form low pressure sap cavity, described electromagnetic motive device drives described plunger guide bush assembly that the aqueous solution of urea in described low pressure sap cavity is sucked to described high pressure sap cavity, described electromagnetic motive device comprises motion portion, stationary part and energy storage device, between motion portion described in described energy storage device is arranged at and described stationary part, described motion portion carries out uplink and downlink to-and-fro motion along described energy storage type supercharging electromagnetic plunge pump, described motion portion carries out the suction of aqueous solution of urea during to up the moving of described energy storage type supercharging electromagnetic plunge pump and described energy storage device carries out energy storage, when described motion portion carries out downstream end motion to described energy storage type supercharging electromagnetic plunge pump, the common force feed that drives described plunger guide bush assembly to carry out aqueous solution of urea of described motion portion and described energy storage device.
This motion portion that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system comprises hand basket and magnet assembly, described hand basket is fixedly connected with described magnet assembly, described stationary part comprises coil block, and described magnet assembly is sheathed on the outside of described coil block, described coil block drives described magnet assembly to move back and forth, described plunger guide bush assembly is sheathed in described coil block, and this coil block is connected with described jointer.
This stationary part that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system also comprises U soft magnetic bodies shell and upper cover, described upper cover is fixedly connected with the left end of described U soft magnetic bodies shell, described upper cover is provided with liquid inlet channel, and described U soft magnetic bodies shell is provided with back liquid runner.
This first coil of energy storage type supercharging electromagnetic plunge pump that is used for SCR emission-reducing system is contrary with the direction of winding of described the second coil, and described magnet assembly comprises the first permanent magnet, the second permanent magnet, be arranged at the first soft magnetic bodies between the first described permanent magnet and described the second permanent magnet and be arranged at second soft magnetic bodies in the second described permanent magnet outside.
This coil block that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system comprises the first coil, and described magnet assembly comprises the first permanent magnet and the first soft magnetic bodies, and the first described soft magnetic bodies is arranged at the right-hand member of the first described permanent magnet.
This coil block that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system comprises the first coil and supplementary soft magnetic bodies, described supplementary soft magnetic bodies is arranged at the right-hand member of the first described coil, and described magnet assembly comprises the first permanent magnet, the second permanent magnet, be arranged at the first soft magnetic bodies between the first described permanent magnet and described the second permanent magnet and be arranged at second soft magnetic bodies in the second described permanent magnet outside.
This plunger guide bush assembly that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system comprises liquid feed valve, described liquid feed valve comprises plunger and the plunger bushing with center flow channels, described plunger is movably set in described plunger bushing, described liquid feed valve has inlet opening, described inlet opening is communicated with described high pressure sap cavity, and described motion portion drives described plunger with respect to described plunger bushing motion.
This liquid feed valve that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system also comprises feed liquor valve member and liquid feed valve spring, described plunger is provided with inlet opening, described plunger also comprises liquid feed valve seat surface, described liquid feed valve seat surface is communicated with described inlet opening, and described feed liquor valve member is against described liquid feed valve seat surface.
This stationary part that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system is also provided with valve push rod, described valve push rod stretches into described high pressure sap cavity by described inlet opening, described motion portion carries out up when mobile, and described valve push rod carries out spacing to described feed liquor valve member.
This plunger guide bush assembly that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system also comprises liquid valve and output cover, described liquid valve is arranged at the high-pressure outlet place of described plunger, described liquid valve comprises fluid valve member, liquid valve spring and liquid valve seat surface, and described liquid valve spring is against described fluid valve member and liquid valve seat surface.
This energy storage type supercharging electromagnetic plunge pump high-pressure output port that is used for SCR emission-reducing system is also provided with atomizer nozzle, described atomizer nozzle is for carrying out atomized spray to aqueous solution of urea, and described atomizer nozzle is connected with described output cover, or described atomizer nozzle replaces described liquid valve.
When this atomizer nozzle that is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system is connected with described output cover, described atomizer nozzle comprises limiting board, jet-sub, injection push rod and poppet valve spring, described injection push rod and described limiting board are rigidly connected, between the limiting board described in described poppet valve spring is arranged at and described jet-sub.
This SCR metering injection system, it is characterized in that, described system comprises urea tank, catalytic muffler and described energy storage type supercharging electromagnetic plunge pump, described energy storage type supercharging electromagnetic plunge pump is connected with described urea tank, described energy storage type supercharging electromagnetic plunge pump suction aqueous solution of urea, and described energy storage type supercharging electromagnetic plunge pump is injected into aqueous solution of urea by exhaust pipe nozzle the front end of described catalytic muffler.
Energy storage type supercharging electromagnetic plunge pump in this SCR metering injection system separates setting with described urea tank, the suction passage of described energy storage type supercharging electromagnetic plunge pump is connected with described urea tank by the static pressure line with heating wire, returns liquid runner and adopts the liquid return pipe with heating wire to be connected with described urea tank.
Energy storage type supercharging electromagnetic plunge pump in this SCR metering injection system and described urea tank are integrated setting, and described energy storage type supercharging electromagnetic plunge pump is arranged at bottom described urea tank or the side of described urea tank; Or described energy storage type supercharging electromagnetic plunge pump is arranged at described urea tank top module integrated with urea tank level meter; Or described energy storage type supercharging electromagnetic plunge pump is placed on urea tank inside and makes submersible type setting, the suction passage of described energy storage type supercharging electromagnetic plunge pump is connected with described urea tank by the low-pressure delivery flexible pipe with heating wire, returns liquid runner and utilizes flexible pipe to be connected with described urea tank.
Air-assisted atomization module in this SCR metering injection system provides air for described mixing air chamber, and pressure measuring tie-in is connected with described mixing chamber.
Energy storage type supercharging electromagnetic plunge pump in this SCR metering injection system and described atomizer nozzle are integrated setting, and described atomizer nozzle is arranged at the front end of described catalytic muffler, and its periphery has cooling liquid cooling device.
Between the energy storage type supercharging electromagnetic plunge pump in this SCR metering injection system and described atomizer nozzle, be provided with mixing chamber and air-assisted atomization module, and be provided with pressure transducer between described energy storage type supercharging electromagnetic plunge pump and atomizer nozzle.
Its air supplementary module is available use, for described mixing chamber provides mixing air.As select, just above-mentioned SCR metering injection system forms the so-called air-assisted atomization SCR metering injection system that has; Otherwise above-mentioned while not comprising air-assisted atomization module, SCR metering injection system only need be connected by the High voltage output flexible pipe with heating wire the above-mentioned mixing chamber that is connected with pressure transducer with exhaust pipe nozzle, form without air-assisted atomization SCR metering injection system.
The front end of the catalytic muffler in this SCR metering injection system is also provided with temperature transducer, the rear end of described catalytic muffler is provided with temperature transducer and NOx sensor, temperature transducer described in each is all connected with controller with described NOx sensor, this controller, for being connected with Vehicle Controller, being also provided with liquid level and taking into account the filter of urea tank temperature transducer, liquid sucting port and the auxiliary two-way suction pump of available use in described urea tank.
The energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system and the corresponding SCR metering injection system of this structure are adopted, structure is simplified, the control of electromagnetic motive device process driving current converts electric energy to the bi-directional drive power of variation alternately, thereby make the to-and-fro motion of motion portion, and then realize suction energy storage; This system has possessed the tactic pattern of simplifying that suction, supercharging, metering be integrated, layout variation, and urea tank can separate with energy storage type supercharging electromagnetic plunge pump, also can be integrated setting, and applicable surface is wider.
Brief description of the drawings
Energy storage type supercharging electromagnetic plunge pump the first embodiment's that Fig. 1 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the second embodiment's that Fig. 2 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the 3rd embodiment's that Fig. 3 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the 4th embodiment's that Fig. 4 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the 5th embodiment's that Fig. 5 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the 6th embodiment's that Fig. 6 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the 7th embodiment's that Fig. 7 provides for the utility model structural drawing.
Energy storage type supercharging electromagnetic plunge pump the 8th embodiment's that Fig. 8 provides for the utility model structural drawing.
The integrated embodiment's of the energy storage type supercharging electromagnetic plunge pump that Fig. 9 provides for the utility model and nozzle pie graph.
The first example structure figure of the energy storage type supercharging electromagnetic plunge pump integrated jetburner used that Figure 10 a provides for the utility model.
The second example structure figure of the energy storage type supercharging electromagnetic plunge pump integrated jetburner used that Figure 10 b provides for the utility model.
Figure 11 is that the first embodiment based on adopting energy storage type supercharging electromagnetic plunger pump module to separate the SCR metering injection system of layout with urea tank forms schematic diagram.
Figure 12 is that the second embodiment of the SCR metering injection system based on adopting energy storage type supercharging electromagnetic plunger pump module and urea tank to integrate forms schematic diagram.
Figure 13 is that the 3rd embodiment of the SCR metering injection system based on adopting energy storage type supercharging electromagnetic plunger pump module and injection unit to integrate forms schematic diagram.
Embodiment
In order more clearly to understand technology contents of the present utility model, describe in detail especially exemplified by following examples.
This is used for the energy storage type supercharging electromagnetic plunge pump of SCR emission-reducing system, comprise electromagnetic motive device 100 and plunger guide bush assembly 200, plunger guide bush assembly 200 has high pressure sap cavity 208a, between electromagnetic motive device 100 and plunger guide bush assembly 200, form low pressure sap cavity 198, the aqueous solution of urea in low pressure sap cavity 198 is sucked high pressure sap cavity 208a by electromagnetic motive device 100 drive plunger sleeve assemblies 200, electromagnetic motive device 100 comprises motion portion 101, stationary part 100 and energy storage device, energy storage device is arranged between motion portion 101 and stationary part 100, motion portion 101 carries out the to-and-fro motion between uplink and downlink along energy storage type supercharging electromagnetic plunge pump, suction and energy storage device that motion portion carries out aqueous solution of urea in the time that energy storage type supercharging electromagnetic plunge pump carries out upstroke carry out energy storage, when motion portion 101 carries out downward movement to energy storage type supercharging electromagnetic plunge pump, the common drive plunger sleeve assembly of motion portion 101 and energy storage device carries out the force feed of aqueous solution of urea.
Motion portion 101 comprises hand basket 108 and magnet assembly, hand basket 108 rigidly fixes and is connected with magnet assembly, stationary part 199 comprises coil block, and magnet assembly is sheathed on the outside of coil block, coil block drives magnet assembly to move back and forth, plunger guide bush assembly 200 is sheathed in coil block, and this coil block is connected with jointer 106.
Stationary part 199 also comprises U-shaped soft magnetic bodies shell 115 and upper cover 107, and upper cover 107 rigidly fixes and is connected with the left end of U-shaped soft magnetic bodies shell 115, and upper cover 107 is provided with liquid inlet channel 117, and U-shaped soft magnetic bodies shell 115 is provided with back liquid runner 118.
Coil block comprises the first coil 103 and the second coil 180, the direction of winding of the first coil 103 and the second coil 180 is contrary, and magnet assembly comprises the first permanent magnet 111, the second permanent magnet 110, is arranged at the first soft magnetic bodies 113 between the first permanent magnet 111 and the second permanent magnet 110 and is arranged at second soft magnetic bodies in the second permanent magnet 110 outsides.
Coil block comprises the first coil 103, and magnet assembly comprises that the first permanent magnet 111 and the first soft magnetic bodies 113, the first soft magnetic bodies 113 are arranged at the right-hand member of the first permanent magnet 111.
Coil block comprises the first coil 103 and supplementary soft magnetic bodies 122, supplement the right-hand member that soft magnetic bodies 122 is arranged at the first coil 103, magnet assembly comprises the first permanent magnet 111, the second permanent magnet 110, is arranged at the first soft magnetic bodies 113 between the first permanent magnet 111 and the second permanent magnet 110 and is arranged at second soft magnetic bodies 114 in the second permanent magnet 110 outsides.
Plunger guide bush assembly comprises liquid feed valve, liquid feed valve comprises plunger 211 and the plunger bushing 201 with center flow channels, plunger 211 is movably set in plunger bushing 201, liquid feed valve has inlet opening 203, inlet opening 203 is communicated with high pressure sap cavity 208a, and motion portion 101 drive plunger 211 are moved with respect to plunger bushing 201.
Liquid feed valve comprises feed liquor valve member 204 and liquid feed valve spring 206, and plunger 211 is provided with inlet opening 203, and plunger 211 also comprises liquid feed valve seat surface 205, and liquid feed valve seat surface 205 is communicated with inlet opening 203, and feed liquor valve member 204 is near liquid feed valve seat surface 205.
Stationary part 199 is also provided with valve push rod 207, and valve push rod 207 stretches into high pressure sap cavity 208a by inlet opening 203, and motion portion 101 carries out up when mobile, and valve push rod carries out spacing to feed liquor valve member.
Plunger guide bush assembly 200 also comprises liquid valve and output cover 219, liquid valve is arranged at the high-pressure outlet place of plunger 211, liquid valve comprises fluid valve member 212, liquid valve spring 215 and liquid valve seat surface 213, and liquid valve spring 215 is against fluid valve member 212 and liquid valve seat surface 213.
Energy storage type supercharging electromagnetic plunge pump is also provided with atomizer nozzle, and atomizer nozzle is for carrying out atomized spray to aqueous solution of urea, and atomizer nozzle 500 is connected with output cover 219, or atomizer nozzle replacement liquid valve.
When atomizer nozzle is connected with output cover, atomizer nozzle comprises limiting board 504, jet-sub 218, sprays push rod 500 and poppet valve spring 503, spray push rod 500 and be rigidly connected with limiting board 504, poppet valve spring 503 is arranged between limiting board 504 and jet-sub 218.
This SCR metering injection system, comprise urea tank 410, catalytic muffler 402 and energy storage type supercharging electromagnetic plunge pump 1, energy storage type supercharging electromagnetic plunge pump 1 is connected with urea tank 410, energy storage type supercharging electromagnetic plunge pump 1 is by suction aqueous solution of urea, and energy storage type supercharging electromagnetic plunge pump 1 is injected into aqueous solution of urea by exhaust pipe nozzle 403 front end of catalytic muffler 402.
Energy storage type supercharging electromagnetic plunge pump 1 separates setting with urea tank 410, the suction passage 117 of energy storage type supercharging electromagnetic plunge pump 1 is connected with urea tank 410 by the static pressure line 407 with heating wire, returning liquid runner 118 is connected with urea tank 410 by liquid return pipe 408, the high-voltage output connector of energy storage type supercharging electromagnetic plunge pump is connected with mixing chamber 411, the air-assisted atomization module of available use provides mixing air for mixing chamber 411, and high pressure detecting sensor 404 is connected with mixing chamber 411.
Energy storage type supercharging electromagnetic plunge pump and urea tank 410 can be integrated setting, the suction passage 117 of energy storage type supercharging electromagnetic plunge pump is connected with urea tank 410 by the static pressure line 407 with heating wire, returning liquid runner 118 is connected with urea tank 410 by liquid return pipe 408, the high-voltage output connector of energy storage type supercharging electromagnetic plunge pump is connected with mixing chamber 411, the air-assisted atomization module of available use provides mixing air for mixing chamber 411, and high pressure detecting sensor 404 is connected with mixing chamber 411.
Energy storage type supercharging electromagnetic plunge pump 1 can be integrated setting with atomizer nozzle, and atomizer nozzle is arranged at the front end of catalytic muffler 402.
The front end of catalytic muffler 402 is also provided with temperature transducer 406, the rear end of catalytic muffler is provided with temperature transducer and NOx sensor 407, each temperature transducer is all connected with controller with NOx sensor, this controller 401 is for being connected with Vehicle Controller, in urea tank 410, be also provided with liquid level and take into account liquid sucting port filter module 405, this imbibition module 405 may comprise filter screen and auxiliary two-way suction pump, its selection depend on above-mentioned energy storage type supercharging electromagnetic plunge pump whether with the setting of urea tank integral type, as only have filter while being arranged on urea tank bottom or submersible type layout and save auxiliary two-way suction pump, utilize the interior gravity of aqueous solution of urea of urea tank itself and the pumping function of energy storage type electromagnetism plunger pump self to realize the suction to aqueous solution of urea.Otherwise, above-mentioned energy storage type supercharging electromagnetic plunge pump separates setting or is arranged on urea tank top during with urea tank, need filter and auxiliary suction low pressure two-way pump module 405, to guarantee that above-mentioned energy storage type supercharging electromagnetic plunge pump can build pressure smoothly.
Energy storage type supercharging electromagnetic plunge pump the first embodiment's that Fig. 1 provides for the utility model structural drawing; This energy storage type supercharging electromagnetic plunge pump, comprises 100, one plunger guide bush assemblies 200 of an electromagnetic motive device.
Electromagnetic motive device 100 comprises motion portion 101, stationary part 199 and energy storage spring 102, and stationary part 199 and motion portion 101 have formed the main body of energy storage type supercharging electromagnetic plunge pump.
Plunger guide bush assembly 200 comprises a plunger bushing 201, a plunger 211, a return spring 209, a liquid feed valve being formed by feed liquor valve member 204, feed liquor valve spring 206 and liquid feed valve seat surface 205, a liquid valve being formed by fluid valve member 212, liquid valve spring 215, liquid valve spring seat 216 and liquid valve seat surface 213, a cover of the output containing high pressure volume 217 219.Plunger bushing 201 comprises plunger hole 208, and one end of plunger hole 208 is connected with inlet opening 203 by liquid feed valve seat surface 205, and the other end is included plunger 211 in and marked off high pressure sap cavity 208a, and plunger bushing 201 comprises plunger bushing spring seat 210.Plunger 211 comprises a center flow channels 211a who connects high pressure sap cavity 208a and liquid valve seat surface 213.Fluid valve member 212 and fluid valve spring 215 are positioned among fluid valve pocket 214, and fluid valve pocket 214 is communicated with high pressure volume 217 by liquid outlet channel 216a.Plunger 211 is connected in the mode of sealing with output cover 219 or adopts the integral structure of diagram without sealing, and liquid valve spring seat 216 is fixed on output cover 219 by modes such as interference fit or screw thread gluings.Output cover 219 contains high pressure joint 218 for being connected with high pressure urea aqueous solution liquid pipeline.
Motion portion 101 comprises the formations such as the plunger bushing 201 of hand basket 108 with integrated rigidly connected magnet assembly 109 with it, together with being closely pressed together on by return spring 209 with hand basket 108.Magnet assembly comprises the first permanent magnet 111, the second permanent magnets 110, the first soft magnetic bodies 113 between the two, and second soft magnetic bodies 114 in the second permanent magnet outside forms.Hand basket 108 and the first permanent magnet 111, the first soft magnetic bodies 110, the second permanent magnet and the second soft magnetic bodies 114 are rigidly connected and become one, and pass to energy storage spring 102 and plunger bushing 201 for the power that coil is produced.And hand basket 108 comprises for reducing resistance to motion and passing through the hand basket hollow out 108a of aqueous solution of urea.
Stationary part 199 comprises coil rack 104, the first coil 103, the second coils 180, U-shaped soft magnetic bodies shell 115, upper cover 107, plunger 211 and output cover 219, jointer 106, for passing through passage 119a and the 119b of winding wire, the formation such as stuffing box gland 116a and 116b of sealing wire.Contrary and the series connection mutually of the winding direction of the first coil 103 and the second coil 180.U-shaped soft magnetic bodies shell 115 comprises that the low-pressure urea aqueous solution returns liquid runner 118, and upper cover 107 comprises low-pressure urea aqueous solution suction passage 117.U-shaped soft magnetism shell 115 comprises that a ring sidewall 115a and one are containing center hole bottom surface 115b, coil and sealing framework thereof are fixedly installed in bottom surface 115b, guarantee to there is good anti-urea corrosion and insulated enclosure effect, and form a uniform annular space 120 with sidewall 115a.Coil and skeleton thereof are fixed on the cylinder outside that output cover 219 and plunger 211 form.Liquid feed valve push rod 207 is fixed on upper cover 107, and stretches to high pressure sap cavity 208a from inlet opening 203, and the first soft magnetic bodies 113, the second soft magnetic bodies 114 and U-shaped soft magnetic bodies shell all have soft magnetic material to make.Plunger 211 and output cover 219 center holes from magnet assembly 109 and bottom surface 115b are fixing through being also mutually rigidly connected.Sealing 116a and Sealing 116b, can be by integrating coil rack and shell 115 formula or assemble the measures such as rear sealant pouring and sealing and achieve the goal for the sealing between wire and U-shaped soft magnetism shell 115 and coil rack.
Energy storage spring 102 acts between hand basket 108 and upper cover 107.
The first soft magnetic bodies 113 remains at around the erosion resisting insulation skeleton 104 that covers the first coil 103 in axial range of movement, and the second soft magnetic bodies 114 remains at around the erosion resisting insulation skeleton 104 that covers the second coil 180 in axial range of movement.Form the magnet assembly 109 of the first soft magnetic bodies 113, the second soft magnetic bodies 114, the first permanent magnet 111 and the second permanent magnet 110, its annular internal diameter can be slightly larger than the external diameter of coil rack 104 in when design, to ensure that motion portion 101 slides smooth and easy on the corrosion-resistant sealing framework peripheral circumferential of the insulation surface in coil outside.
Return spring 209 acts between plunger bushing spring seat 210 and coil rack 104.
A complete working procedure of described energy storage type electromagnetism plunger pump is: aqueous solution of urea enters low pressure sap cavity 198 from liquid inlet channel 117, in the time that the electric current of postive direction passes through the first coil 103 and the second coil 180, under the effect of radial magnetic field around the first soft magnetic bodies 113 and the second soft magnetic bodies 114, the up compressed energy-storage spring 102 of motion portion 101, the described up imbibition stroke that refers to plunger guide bush assembly 200, it is up that return spring 209 also promotes plunger bushing 201 simultaneously, it is thereupon up that liquid feed valve spring 206 promotes feed liquor valve member 204, aqueous solution of urea in low pressure sap cavity 198 is opened because pressure reduction promotes feed liquor valve member 204 simultaneously, and enter high pressure liquid chamber 208a, approach when spacing by upper cover 107 when movement parts 101 is up, 207 restriction feed liquor valve members 204 of valve push rod are taken a seat, when movement parts 101 up when spacing by upper cover 107, between feed liquor valve member 204 and feed liquor valve seat 205, form initial separation G, now high pressure sap cavity 208a has been full of or has approached and has been full of aqueous solution of urea.In the time that back current passes through the first coil 103 and the second coil 180, under the effect of radial magnetic field around the first soft magnetic bodies 113 and the second soft magnetic bodies 114, it is descending that motion portion 101 promotes plunger bushing 201, it is descending that while energy storage spring 102 also promotes plunger bushing 201, before feed liquor valve member 204 leaves valve push rod 207, plunger bushing 201 is made non-resistance along plunger 211 and is slided, first part aqueous solution of urea in high pressure sap cavity 208a and the gas that may exist are extruded to low pressure sap cavity 198 from inlet opening 203, during this, the release of the acting of electromagnetic field and energy storage spring 102 energy is converted into the kinetic energy of plunger bushing 201 and motion portion 101, depart from the moment of feed liquor valve member 204 at valve push rod 207, feed liquor valve member 207 is seated at feed liquor valve seat 205, now plunger bushing 201 is further descending starts to compress the aqueous solution of urea in high pressure sap cavity 208a, when the urea pressure in high pressure sap cavity 208a is during higher than hydraulic coupling summation in pretightening force and the fluid valve pocket 214 of liquid valve spring 215, the high pressure urea aqueous solution enters high pressure volume 217.
In said process, in motion portion 101, be about to magnetic field acting energy storage in energy storage spring 102, motion portion 101 again magnetic field is done work the descending incipient stage to move can form be stored in motion portion 101 and plunger bushing 201, the above-mentioned energy summation being stored will be released to the aqueous solution of urea in conveying high-pressure sap cavity 208a in motion portion 101 follow-up descending, and therefore urea pressure can significantly improve without energy-storage system relatively.Meanwhile, by adjusting initial separation G, can change energy storage total amount.
In said process, between feed liquor runner 117 and time liquid runner 118, can aspirate two-way pump by an external supporting auxiliary low pressure, for the heat of low pressure sap cavity 198 is taken away in time.
Fig. 2 has shown the second embodiment's of the energy storage type supercharging electromagnetic plunge pump that the utility model provides structural drawing.
Compared with energy storage type supercharging electromagnetic plunge pump the first embodiment who provides with the utility model, the contained magnet assembly of motion portion 101 of the present embodiment only comprises the first permanent magnet 111 and the first soft magnetic bodies 113.The contained coil of stationary part 199 only only has the first coil 103, the first coil 103 moves and in scope, remains at around the first soft magnetic bodies 113 in the be magnetic motive position of assembly of being rigidly connected, and all the other structures are identical with energy storage type supercharging electromagnetic plunge pump the first embodiment with working procedure.
The working procedure of the present embodiment is identical with energy storage type supercharging electromagnetic plunge pump the first embodiment, does not repeat them here.
Fig. 3 has shown energy storage type supercharging electromagnetic plunge pump the 3rd embodiment's that the utility model provides structural drawing.
Compared with energy storage type supercharging electromagnetic plunge pump the first embodiment who provides with the utility model, the first coil 103 that the present embodiment includes stationary part 199 replaces with and supplements soft magnetic bodies 122, and then improve the first soft magnetic bodies 114 magnetic intensity around, thereby put forward high-octane conversion efficiency.
Supplementing soft magnetic bodies 122 be tubular type, its with the second coil of the first embodiment together integration packaging in the coil rack of resistance to urea corrosion and insulated enclosure, the porose coil lead that passes in its centre.
The working procedure of the present embodiment is identical with energy storage type supercharging electromagnetic plunge pump the first embodiment, does not repeat them here.
Fig. 4 has shown energy storage type supercharging electromagnetic plunge pump the 4th embodiment's that the utility model provides structural drawing.
The energy storage type supercharging electromagnetic plunge pump providing with the utility model is compared with the first embodiment, and the present embodiment difference is structurally plunger bushing assembly 200.This plunger bushing assembly 200 comprises that the plunger bushing 201 of one end sealing and one are located at the inlet opening 203 that the sidewall of plunger 211 is connected with its center flow channels 211a.
Compared with energy storage type supercharging electromagnetic plunge pump the first embodiment who provides with the utility model, the difference of the present embodiment in working procedure is as follows, , plunger bushing 201 is in the process up in company with motion portion 101, inlet opening 203 is opened, aqueous solution of urea in low pressure sap cavity 198 enters high pressure sap cavity 208a because of pressure reduction, plunger bushing 201 continues up until limited afterwards, plunger bushing 201 is in company with the descending incipient stage of motion portion 101, before inlet opening 203 is covered by plunger bushing 201, resistanceless motion does under energy storage spring 102 and electromagnetic force acting in conjunction in plunger bushing 201 and motion portion 101, the energy of the acting of this stage electromagnetic energy and energy storage spring 102 discharges can be with the kinetic energy form stored energy of movement parts 101 and plunger bushing 201, after the further descending covering inlet opening 203 of plunger bushing 201, start to compress the aqueous solution of urea in high pressure sap cavity 208a, when the aqueous solution of urea pressure in high pressure sap cavity 208a is during higher than aqueous solution of urea pressure summation in pretightening force and the fluid valve chamber 214 of liquid valve spring 215, the high pressure urea aqueous solution enters high pressure volume 217.
Fig. 5 has shown energy storage type supercharging electromagnetic plunge pump the 5th embodiment's that the utility model provides structural drawing.
Compared with energy storage type supercharging electromagnetic plunge pump the first embodiment who provides with the utility model, the present embodiment difference is structurally plunger bushing assembly 200.Plunger bushing assembly 200 comprises that one is overlapped 219 plunger bushings that are connected with sealing means 201 with output, one comprises the plunger 211 of piston spring seat 211b, inlet opening 203 runs through the two ends of plunger 211 vertically, one end connects low pressure sap cavity 198, the other end connects liquid feed valve seat surface 205, plunger trepanning 208 is shoulder holes, plunger 211 enters from opening one end and forms high pressure sap cavity 208a, fluid valve seat 213 is positioned at the other end of plunger bushing 208 center holes, and a valve push rod 207 that is fixed on upper cover 107 stretches to high pressure sap cavity 208a from inlet opening 203.
Compared with energy storage type supercharging electromagnetic plunge pump the first embodiment, the difference of the present embodiment in working procedure is as follows, , in the time of the up compressed energy-storage spring 102 of motion portion 101, it is up that return spring 209 also promotes plunger 211 simultaneously, it is thereupon up that liquid feed valve spring 206 promotes feed liquor valve member 204, high pressure liquid chamber 208a is opened and entered to aqueous solution of urea in low pressure sap cavity 198 because pressure reduction promotes feed liquor valve member 204 simultaneously, approach when spacing by upper cover 107 when movement parts 101 is up, 207 restriction feed liquor valve members 204 of valve push rod are taken a seat, when movement parts 101 up when spacing by upper cover 107, between feed liquor valve member 204 and feed liquor valve seat 205, form initial separation G, now high pressure sap cavity 208a has been full of or has approached and has been full of aqueous solution of urea.When motion portion 101 promotes plunger 211 when descending, it is descending that energy storage spring 102 also promotes plunger 211 simultaneously, before feed liquor valve member 204 leaves valve push rod 207, plunger 211 is made non-resistance along plunger trepanning 208 and is slided, first part aqueous solution of urea in high pressure sap cavity 208a and the gas that may exist are extruded to low pressure sap cavity 198 by inlet opening 203, during this, the release of the acting of electromagnetic field and energy storage spring 102 energy is converted into the kinetic energy of plunger 211 and motion portion 101, depart from the moment of feed liquor valve member 204 at valve push rod 207, feed liquor valve member 207 is seated at feed liquor valve seat 205, now plunger 211 is further descending starts to compress the aqueous solution of urea in high pressure sap cavity 208a, when the aqueous solution of urea pressure in high pressure sap cavity 208a is during higher than aqueous solution of urea pressure summation in pretightening force and the fluid valve pocket 214 of fluid valve spring 215, the high pressure urea aqueous solution enters high pressure volume 217.
Fig. 6 has shown energy storage type supercharging electromagnetic plunge pump the 6th embodiment's that the utility model provides structural drawing.
Compared with energy storage type supercharging electromagnetic plunge pump the first embodiment who provides with the utility model, the present embodiment difference is structurally, , output cover 219 is fixed on upper cover 107, valve push rod 207 is fixed on bottom surface 115b, bottom surface 115b is a sealing flat board that contains interior fluid passage 198a, energy storage spring 102 acts on hand basket 108 and bottom surface 115b through the coil rack 104 inner side central duct of resistance to urea corrosion and insulated enclosure, return spring 209 acts between plunger bushing spring seat 210 and output cover 219, hand basket 108 comprises Yi Ge center hollow out 108b, valve push rod 207 stretches to high pressure sap cavity 208a through center hollow out 108b from inlet opening 203.
In such scheme, the center hole of coil rack 104 can be also a shoulder hole that outer imperial palace is little, can be also a blind hole, and valve push rod 207 also can be fixed on coil rack 104.
The present embodiment is basic identical or similar to energy storage type supercharging electromagnetic plunge pump the first embodiment in working procedure, repeats no more here.
Fig. 7 shows energy storage type supercharging electromagnetic plunge pump the 7th embodiment's that the utility model provides structural drawing.
Compared with energy storage type supercharging magnetic plunger pump the 6th embodiment who provides with the utility model, the present embodiment difference is structurally, its U-shaped soft magnetic bodies shell 115 comprises an extending sleeve 190, a hydraulic-pressure sleeve 192 is through coil rack 104 and U-shaped soft magnetic bodies shell 115 and extending portion 190 center, in hydraulic-pressure sleeve 192, be provided with a close fit and can free-moving hydraulic plunger 188, in extending portion 190, be fixed with an energy storage spring seat 189, energy storage spring acts between hydraulic plunger 188 and energy storage spring seat 189, in extending portion 190, be provided with one often open comprise hydraulic valve piece 195, hydraulic pressure valve seat 196 and hydraulically-controlled one-way valve spring 194 are at interior hydraulically-controlled one-way valve, be provided with a passage 193 that leads to the low-pressure urea aqueous solution in the outlet port of hydraulically-controlled one-way valve, between hydraulic plunger 188 and hydraulically-controlled one-way valve, be provided with a hydraulic volume chamber 191, hydraulic volume chamber 191 can extend to outside extending sleeve 190, plunger bushing 201 comprises an inlet opening 203 through sidewall, plunger 211 is received in one end, the other end sealing.
Compared with energy storage type supercharging electromagnetic plunge pump the 6th embodiment, the difference of the present embodiment in working procedure is as follows, , in the time that motion portion 101 is up, promote hydraulic plunger 188 and pass through hydraulic plunger 188 compressed energy-storage springs 102, in the time that the pressure of hydraulic volume chamber 191 suddenly rises because of hydraulic plunger motion, hydraulically-controlled one-way valve part 195 will overcome the active force of hydraulically-controlled one-way valve spring 194 and close and hydraulically-controlled one-way valve seat 196, now, along with hydraulic plunger 188 can continue up, the aqueous solution of urea of hydraulic volume chamber 191 is constantly pressurizeed, the spring energy storing and hydraulic energy are constantly built high simultaneously and are stored, plunger bushing 201 is in the process up in company with motion portion 101, inlet opening 203 is opened, aqueous solution of urea in low pressure sap cavity 198 enters high pressure sap cavity 208a because of pressure reduction, plunger bushing 201 continues up until limited afterwards, plunger bushing 201 is in company with the descending incipient stage of motion portion 101, before inlet opening 203 is covered by plunger bushing 201, plunger bushing 201 and motion portion 101 are at the pressure of hydraulic volume chamber 191, under energy storage spring 102 and electromagnetic force acting in conjunction, do resistanceless motion the form stored energy with kinetic energy, after the further descending covering inlet opening 203 of plunger bushing 201, start to compress the aqueous solution of urea in high pressure sap cavity 208a, when the aqueous solution of urea pressure in high pressure sap cavity 208a is during higher than hydraulic coupling summation in pretightening force and the fluid valve pocket 214 of liquid valve spring 215, the high pressure urea aqueous solution enters high pressure volume 217, while approaching descending terminal, hydraulic volume 191 pressure drops, now unidirectional 195 of hydraulic pressure is opened, if the aqueous solution of urea in hydraulic volume chamber 191 has disappearance can pass through to supplement from the aqueous solution of urea in low-pressure urea tank.
Fig. 8 has shown energy storage type supercharging electromagnetic plunge pump the 8th embodiment's that the utility model provides structural drawing.
Energy storage type supercharging electromagnetic plunge pump, comprises 100, one plunger guide bush assemblies 200 of an electromagnetic motive device.
Electromagnetic motive device 100 comprises motion portion 101, stationary part 199 and energy storage spring 102.
Plunger guide bush assembly 200 comprises a plunger bushing 201, a plunger post 211, a return spring 209, one by fluid valve member 212, the liquid valve that liquid valve spring 215 and liquid valve seat surface 213 form, output containing high pressure volume 217 cover 219, plunger bushing 201 comprises plunger hole 208, plunger 211 enters and forms high pressure sap cavity 208a from one end of plunger hole 208, inlet opening 203 connects low pressure sap cavity 198 and plunger hole 208 through the sidewall of plunger bushing 201, plunger 211 comprises piston spring seat 211b, return spring 209 acts between piston spring seat 211b and plunger bushing 201, fluid valve spring 215 acts between fluid valve member 212 and output cover 219, between plunger bushing 201 and output cover 219, be connected in the mode of sealing, output cover 219 contains high pressure joint 218 for connecting High voltage output pipeline.
Motion portion 101 comprises an armature 132 and hand basket 108, and armature 132 comprises armature fluid passage 223, and hand basket 108 comprises hand basket hollow out 108a, and hand basket 108 is connected with armature 132 for transmitting the active force between armature 132 and plunger 211.
Stationary part 199 comprises a double solenoid driver part being made up of the first solenoid 124, the second solenoid 123, yoke 125, the first magnetic gap 127 and the second magnetic gap 126,107, one jointers 106 of upper cover containing liquid inlet channel 177 and sealing O shape circle.Magnetic gap adopts the plastic material of resistance to aqueous solution of urea corrosion to make, and and coil and upper cover between tubular shape support 128 and 130 and 129 and integrate, form that to have be the coil rack of urea corrosion.
Energy storage spring 102 acts between upper cover 107 and armature 132.The front/rear end of armature 132 lays respectively near the first magnetic gap 127 and the second magnetic gap 126.
A complete working procedure of this energy storage type supercharging electromagnetic plunge pump is: the aqueous solution of urea with certain pressure enters low pressure sap cavity 198 from liquid inlet channel 117, after the second solenoid 123 powers on, armature 132 drives motion portion 101 up because of the second magnetic gap 126 under the effect of electromagnetic force, the described up imbibition stroke that refers to plunger guide bush assembly 200, the up compressed energy-storage spring 102 of motion portion 101, it is up that return spring 209 promotes plunger 211, after certain hour, inlet opening 203 is opened, aqueous solution of urea in low pressure sap cavity 198 enters high pressure sap cavity 208a because of pressure reduction, continue the up a certain moment before limited at motion portion 101 and plunger 211, the second solenoid 123 power-off and the first solenoid 124 power on, armature 132 drives motion portion 101 descending because of the first magnetic gap 127 under the effect of electromagnetic force, plunger 211 is descending in company with motion portion 101, in the initial incipient stage, before inlet opening 203 is sealed by plunger 211, resistanceless motion does under energy storage spring 102 and electromagnetic force acting in conjunction in plunger 211 and motion portion 101, first part urea in high pressure sap cavity 208a and the gas that may exist are extruded to low pressure sap cavity 198 from inlet opening 203, the energy of the acting of this stage electromagnetic energy and energy storage spring 102 discharges and can store with the kinetic energy form of movement parts 101 and plunger 211, after the further descending sealing inlet opening 203 of plunger 211, plunger 211 starts to compress the aqueous solution of urea in high pressure sap cavity 208a, when the aqueous solution of urea pressure in high pressure sap cavity 208a is during higher than aqueous solution of urea pressure summation in pretightening force and the fluid valve chamber 214 of liquid valve spring 215, fluid valve member 212 leaves fluid valve member seat surface 213, the high pressure urea aqueous solution enters high pressure volume 217.
The example structure figure that the energy storage type supercharging electromagnetic plunge pump that Fig. 9 provides for the utility model and nozzle are integrated.
The energy storage type supercharging electromagnetic plunge pump providing as a kind of the utility model and the integrated embodiment of atomizer nozzle, the present embodiment mainly contains energy storage type supercharging magneto drive plunger pump 1 and atomizer nozzle 500 forms.Wherein energy accumulating type magnetic drive plunger pump 1 can adopt arbitrary money energy storage type supercharging magnetic drive pump of above-mentioned Fig. 1 to Fig. 8 to substitute, the export structure that is original energy storage type supercharging magnetic drive pump changes, by a set of one-way back pressure formula of original plunger guide bush assembly 200 mesohigh out splice going splice 218 place's integration atomizer nozzle 500.Accompanying drawing 9 adopts the transformation of the way of the supercharging of energy storage type shown in Fig. 8 electromagnetic plunge pump to form, and its liquid entering hole replaces with sleeve joint sample by carrying 107 in former Fig. 8, and this change can be other any mounting structure.Atomizer nozzle can be arbitrary structures described in Figure 10 a and Figure 10 b, but while adopting the atomizer nozzle 500 of the outside opening type of Figure 10 a, in its corresponding energy storage type supercharging magneto drive plunger pump 1, liquid valve can not save, while adopting Figure 10 b, can selectively save, accompanying drawing 9 is for adopting atomizer nozzle 10b to save the layout of above-mentioned liquid valve.
The working procedure of accompanying drawing 9 structures is, energy storage type supercharging magnetic force plunger pump is by aqueous solution of urea suction, energy storage and be squeezed into after the high pressure that can open fluid valve member 212 with plunger assembly, utilizes the high-pressure injection aperture 502 in atomizer nozzle 500 to spray.Because its water droplet after high pressure urea aqueous solution ejection is met atmosphere and expanded that to overcome Surface Tension of Liquid Drops cracked, thereby become fog-like liquid.
The first example structure figure of the energy storage type supercharging electromagnetic plunge pump integrated jetburner used (that is: atomizer nozzle) that Figure 10 a provides for the utility model;
As a kind of model utility atomizer pump mouth, its formation comprises limiting board 504, jet-sub 218, and outside opening type is sprayed push rod 500, and poppet valve spring 503 forms.Wherein external-open injection push rod 500 is rigidly connected with limiting board 504, poppet valve spring is housed between limiting board 504 and jet-sub, the elastic reset of this spring during by no-output pressure will outside opening type sprays between the conical seal (contact) face of push rod 500 and jet-sub 219 fits, and then guarantees that outside booty does not enter in atomizer nozzle.Its working principle is, under the high pressure urea aqueous solution effect of exporting at the mentioned energy storage type supercharging magnetic drive pump 1 of the utility model, rigidly connected push rod 500 and limiting board 504 are extruded to jet-sub 218, compress the energy that poppet valve spring 503 stores its reset simultaneously, open after certain interval and spray between push rod 500 and jet-sub 218 in outside opening type, the above-mentioned output high pressure urea aqueous solution is exported at a high speed in this gap, then overcomes Surface Tension of Liquid Drops and atomization in jet-sub 218 outsides.
The second example structure figure of the energy storage type supercharging electromagnetic plunge pump integrated jetburner used (that is: atomizer nozzle) that Figure 10 b provides for the utility model;
As a kind of model utility atomizer pump mouth, the fluid one-way valve of power pump 1 is carried in the similar above-mentioned energy storage type supercharging of its structure, forms and comprises output valve member 212, the fluid joint 219 of delivery valve, jet-sub 218, the liquid valve spring 215 of resistance to aqueous solution of urea corrosion forms.Its working principle is, under the high pressure urea aqueous solution effect of exporting at the mentioned energy storage type supercharging magnetic force plunger pump 1 of the utility model, fluid valve member 212 is pressed from liquid valve seat surface 213, liquid valve spring 215 stores the energy of its reset simultaneously, thereby the high pressure urea aqueous solution of output is passed through to the certain interval of unlatching between fluid valve member 212 and liquid valve seat surface 213, the above-mentioned output high pressure urea aqueous solution is exported at a high speed in this gap, then overcome Surface Tension of Liquid Drops and atomization in jet-sub 218 outsides.
Figure 11 is based on adopting energy storage type supercharging electromagnetic plunger pump module to separate first embodiment's schematic diagram of the SCR metering injection system of layout with urea tank;
This layout forms the urea tank 410 that mainly contains storage car aqueous solution of urea, above-mentioned energy storage type supercharging magnetic force plunger pump 1, with the aqueous solution of urea static pressure line 407 of heating function, high-pressure delivery pipe 409, liquid return pipe 408, above-mentioned energy storage type supercharging electromagnetic plunge pump 1 is exported the outer mixing chamber 411 of mixing mutually with air-assisted atomization module 412 air that supplies of high pressure joint, high pressure detecting sensor 404, to the nozzle 403 of the front jet atomization aqueous solution of urea of outlet pipe catalytic muffler 402, and the equipped temperature transducer 406 in above-mentioned catalytic muffler front and back, waste gas NOx concentration sensor 407, and the associated components such as controller 401 forms.Level meter module is wherein housed in urea tank 410, and (this module comprises 1 level meter, a urea tank temperature transducer forms), filter the filter of the aqueous solution of urea that aspirates, and the submersible type being connected with filter of available use formations such as low pressure pump for auxiliary suction, and filter and auxiliary suction low pressure pump are demarcated as 405 in the drawings.
The distinguishing feature of this layout is that the modules such as above-mentioned mentioned energy storage type supercharging electromagnetic plunge pump are separated to layout with urea tank, and then all the other conventional scr metering injection system peripheral components integrating except atomizer nozzle is become to pump module, in addition at corresponding all the other annexes of this pump module peripheral matched, as atomizer nozzle 403, catalytic muffler EGP, and temperature transducer that outlet pipe is joined and NOx concentration sensor etc., the separate configurations such as urea tank auxiliary equipment.And then guarantee that above-mentioned metering ejector pump layout possesses aqueous solution of urea suction, voltage stabilizing, antifreeze and selectable air-assisted atomization module 412 and all integrates and be independent of urea tank and nozzle module periphery.
Further, the above-mentioned air atomizing supplementary module relating to comprises from vehicle-mounted air compressor and transmits the flexible pipe of clean source of the gas, pneumatic three element (filter, decompressor, oil and water seperator), electromagnetic switch valve and one-way valve etc.And this module is as can options using, and access the mixing chamber of above-mentioned energy storage type supercharging electromagnetic plunge pump delivery outlet.As select above-mentioned SCR metering injection system just to form with the air that has of urea bucket separated type and assist SCR metering injection system, otherwise while not comprising, be configured to one with urea bucket separated type without the auxiliary SCR metering injection system of air, and this atomizer nozzle without gas system must be equipped with the electromagnetic measurement nozzle that unidirectional opening type nozzle arrangements described in accompanying drawing 10a or 10b or liquid (as engine cooling water, aqueous solution of urea etc.) cool in outlet pipe side.
Simultaneously, the submersible type auxiliary low pressure suction pump of mentioning in above-mentioned layout, can save during lower than urea tank liquid level at urea tank liquid taking port, and then utilize the interior gravity of aqueous solution of urea of urea tank itself and the pumping function of above-mentioned energy storage type supercharging electromagnetic plunge pump self to realize the suction to aqueous solution of urea, it is the impact of residual urea aqueous solution freezing and expansion when low temperature (lower than-5 DEG C) in avoiding from filter to energy storage type supercharging electromagnetic plunge pump low-pressure cavity simultaneously, can selectively adopt the submersible type low pressure pump with two-way pumping function to replace above-mentioned service pump, and then while not starting in above-mentioned SCR metering injection system back suction to inhale cleaning residual.Concrete selection principle is with economical and practical, and the fundamental function that does not affect SCR metering injection system is prerequisite consideration key element, in this schematic layout pattern, does not limit.
From concrete enforcement, design and develop with reference to the SCR metering injection system structure composed of module powered by conventional energy (as diaphragm pump), in this schematic layout pattern, no longer have a detailed discussion.
The operation of this layout is, aqueous solution of urea after filtration or after auxiliary suction unit 405 extracted ureas, send into energy storage type supercharging magnetic force plunger pump, then by the output at regular time and quantity according to the given amount of controller of the aqueous solution of urea of energy storage supercharging magnetic force plunger pump adherence pressure, then deliver to atomized spray air inlet-outlet pipe in exhaust pipe nozzle 403 through aqueous solution of urea delivery line, at this moment if any air-assisted atomization module, also need the magnetic switch valve timing of controlling assisted atomization air module to fill into cleaned air, the effect expanding after utilizing air to go out nozzle to the above-mentioned high pressure urea aqueous solution when the atomization and strengthen the cracked atomizing effect of drop, and after the atomize urea aqueous solution enters outlet pipe under waste gas higher temperature, required ammonia is resolved in gasification rapidly, then this ammonia enters catalytic muffler EGP with the waste gas in engine exhaust pipe and carries out sufficient redox reaction, oxynitrides in waste gas is become to harmless nitrogen and aqueous vapor and discharges outlet pipe.In this process energy storage type supercharging electromagnetic plunge pump, unnecessary aqueous solution of urea and air returns in urea tank by liquid return pipe 408.
Figure 12 is first embodiment's schematic diagram of the SCR metering injection system based on employing energy storage type supercharging electromagnetic plunger pump module and urea tank one layout;
This layout formation mainly contains: the urea tank 410 of storing SCR emission-reducing system aqueous solution of urea, above-mentioned energy storage type supercharging electromagnetic plunge pump 1, with the aqueous solution of urea low-pressure delivery tank 407 of heating function, high-pressure delivery pipe 409, liquid return pipe 408, the outer mixing chamber 411 mixing mutually with air-assisted atomization module 412 air that supplies that can choice for use of above-mentioned energy storage type supercharging magnetic drive pump 1 high-voltage output connector 219, high pressure detecting sensor 404, to the nozzle 403 of the front jet atomization aqueous solution of urea of outlet pipe catalytic muffler 402, and the temperature transducer 406 of above-mentioned catalytic muffler front and back, waste gas NOx concentration sensor 407, and the associated components such as controller 401 forms.Level meter module is wherein housed in urea tank 410, and (this module comprises 1 level meter, a urea tank temperature transducer of integrating with level meter forms), filter the filter of the aqueous solution of urea that aspirates, and the submersible type being connected with filter of available use formations such as low pressure pump for auxiliary suction, and filter and auxiliary suction low pressure pump are demarcated as 401 in the drawings.
The distinguishing feature of this layout is that the modules such as above-mentioned mentioned energy storage type supercharging electromagnetic plunge pump and urea tank are integrated, and then realize so-called and urea tank integration-in-one SCR metering injection system, and this integral type layout can be as required, above-mentioned energy storage type supercharging electromagnetic plunge pump is done to submersible type setting or be arranged on urea tank bottom or side, or module integrated integral with urea tank level meter, all the other peripheral formations are substantially similar with layout described in accompanying drawing 11, do not narrate in burden at this.
Equally, the air atomizing supplementary module of this layout has or not the needs of air-assisted atomization according to system and selectively uses, and accesses the mixing chamber of above-mentioned energy storage type supercharging electromagnetic plunge pump delivery outlet.As while selecting, this module comprises from vehicle-mounted air compressor transmits the flexible pipe of clean source of the gas, pneumatic three element, electromagnetic switch valve and one-way valve.And this assisted atomization air module is as selected, just above-mentioned SCR metering injection system has formed and assists SCR metering injection system with the air that has of urea tank integration-in-one; Otherwise while not comprising, be configured to one with urea tank integration-in-one with without the auxiliary SCR metering injection system of air, and this atomizer nozzle without gas system must be equipped with the electromagnetic measurement nozzle that unidirectional opening type nozzle arrangements described in accompanying drawing 10 or liquid (as engine cooling water, aqueous solution of urea etc.) cool in outlet pipe side.
Simultaneously, the submersible type auxiliary low pressure suction pump of mentioning in above-mentioned layout, the energy storage type supercharging electromagnetic plunge pump mentioned at the utility model can save while embedding urea tank bottom or side near bottom, and then utilize the interior gravity of aqueous solution of urea of urea tank itself and the pumping function of above-mentioned energy storage type supercharging electromagnetic plunge pump self to realize the suction to aqueous solution of urea, it is the impact of residual urea aqueous solution freezing and expansion when low temperature (lower than-5 DEG C) in avoiding from filter to energy storage type supercharging electromagnetic plunge pump low-pressure cavity simultaneously, can selectively adopt the submersible type low pressure pump with two-way pumping function to replace above-mentioned service pump, and then while not starting in above-mentioned SCR metering injection system back suction to inhale cleaning residual.Concrete selection principle is with economical and practical, and the fundamental function that does not affect SCR metering injection system is prerequisite consideration key element, in this schematic layout pattern, does not limit.
With reference to the concrete implementation detail of structure composed of module powered by conventional energy (as diaphragm pump), no longer burdensome in this schematic layout pattern from concrete enforcement.
Basically identical as for operation described in the operation of this system and accompanying drawing 11 schematic diagram, repeat no more herein.
Figure 13 adopts the 3rd embodiment of the SCR metering injection system that energy storage type supercharging electromagnetic plunge pump and outlet pipe injection unit integrate to form schematic diagram.
This layout formation mainly contains: the urea tank 410 of storage car aqueous solution of urea, above-mentioned energy storage type supercharging magnetic force plunger pump 1, with the aqueous solution of urea low-pressure delivery tank 407 of heating function, energy storage supercharging electromagnetic plunge pump mutation described in above-mentioned accompanying drawing 9 and framework thereof forms injection unit 403, high pressure detecting sensor 404, outlet pipe catalytic muffler 402, and the equipped temperature transducer 406 in catalytic muffler front and back, waste gas NOx concentration sensor 407, and the associated components such as controller 401 forms.Level meter module is wherein housed in urea tank 410, and (this module comprises 1 level meter, a urea tank temperature transducer forms), filter the filter of the aqueous solution of urea that aspirates, and the submersible type of available use formations such as low pressure pump for auxiliary suction, and filter and auxiliary suction low pressure pump are designated as 401 in the drawings.
The distinguishing feature of this layout is that energy storage type supercharging electromagnetic plunge pump mentioned above-mentioned the utility model and outlet pipe urea atomizer nozzle are integrated, and then realize the SCR metering injection system that aqueous solution of urea suction, supercharging, ejection atomization are integrated, at this referred to as supercharging magnetic drive pump atomizer nozzle.And except this supercharging magnetic force atomization nozzle 403, be equipped with the needed pipeline of SCR metering injection system and automatically controlled device.And then make this system more succinct with respect to above-mentioned Figure 11 or the mentioned layout architecture of Figure 12, economy.Unique must guarantee be; this nozzle periphery must have liquid (engine cooling water or other substitutes such as aqueous solution of urea) and give cooling protection, and the electromagnetic coil of supercharging magnetic drive pump atomizer nozzle and the pressure transducer 404 of integrated assembling are not burnt out by high temperature.Simultaneously this layout can be as required by the imbibition end of its low-pressure urea suction output tube 407, be arranged on urea tank bottom or side, or with level meter module integrated become one.As while being arranged in urea tank aqueous solution of urea liquid level following (as bottom), can directly draw by the filter end in urea tank, otherwise, need to be equipped with the low pressure service pump of available use, the aqueous solution of urea of lower pressure is provided to above-mentioned energy storage type supercharging magnetic drive pump, while avoiding magnetic force plunger pump just to open, causes the restriction of suction capactity deficiency because of poor sealing.
Equally, the air atomizing supplementary module of this layout has or not the needs of air-assisted atomization according to system and selectively uses, access before above-mentioned supercharging magnetic drive pump atomizer pump nozzle, increase again mixed aerosol jet module, this mixed aerosol jet module need to move forward to the spout part of supercharging magnetic drive pump atomizer nozzle (that is: the one-way back pressure atomization spray cap described in accompanying drawing 10) before mixing chamber, then in the mixing chamber between supercharging magnetic force plunger pump and this single way jet head, introduces the throttling air of air-assisted atomization module.As while selecting, just above-mentioned SCR metering injection system has formed the SCR metering injection system auxiliary with there being air; Otherwise while not comprising, be configured to without the auxiliary SCR metering injection system of air.
Simultaneously, the submersible type auxiliary low pressure suction pump of mentioning in above-mentioned layout, getting liquid in urea tank bottom or side can be saved during near bottom, and then utilize the interior gravity of aqueous solution of urea of urea tank itself and the pumping function of above-mentioned energy storage type supercharging electromagnetic plunge pump self to realize the suction to aqueous solution of urea, it is the impact of residual urea aqueous solution freezing and expansion when low temperature (lower than-5 DEG C) in avoiding from filter to energy storage type supercharging electromagnetic plunge pump low-pressure cavity simultaneously, can selectively adopt the submersible type low pressure pump with two-way pumping function to replace above-mentioned service pump, and then while not starting in above-mentioned SCR metering injection system back suction to inhale cleaning residual.Concrete selection principle is with economical and practical, and the fundamental function that does not affect SCR metering injection system is prerequisite consideration key element, in this schematic layout pattern, does not limit.
Basically identical as for operation described in the operation of this system and accompanying drawing 11 schematic diagram.When unique difference is without air auxiliary system, also be integrated with the hydronic alone cycle of liquid (as engine cooling water) loop outward at above-mentioned supercharging magnetic force atomization nozzle, to ensure that integrated energy storage type supercharging magnetic force plunger pump is not deflated pipe high temperature and burns out.Once its working procedure is motor starting, freeze and detect errorlessly in corresponding cooling water pipe of engine road, and after internal duct is thawed completely, corresponding engine cooling water just can give cooling protection to above-mentioned supercharging magnetic force nozzle exterior annular space by circular flow.Then according to emission control program, start the working procedure of above-mentioned Figure 11 accompanying drawing, the above-mentioned supercharging magnetic drive pump of start by set date atomizer nozzle, reaches the control of injection flow by changing the pole change frequency of its electromagnetic coil and electromagnetic force size, realize the quantitative injection of aqueous solution of urea.And the aqueous solution of urea control loop that cooling circuit and above-mentioned energy storage supercharging electromagnetic plunge pump form is two separate liquid stream circulations, the suction conveying of the whole SCR metering injection system that has been fitted to each other and jet atomization aqueous solution of urea task.
In this specification, the utility model is described with reference to its specific embodiment.But, still can make various amendments and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.

Claims (19)

1. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system, it is characterized in that, comprise electromagnetic motive device and plunger guide bush assembly, described plunger guide bush assembly has high pressure sap cavity, between described electromagnetic motive device and described plunger guide bush assembly, form low pressure sap cavity, described electromagnetic motive device drives described plunger guide bush assembly that the aqueous solution of urea in described low pressure sap cavity is sucked to described high pressure sap cavity, described electromagnetic motive device comprises motion portion, stationary part and energy storage device, between motion portion described in described energy storage device is arranged at and described stationary part, described motion portion carries out uplink and downlink to-and-fro motion along described energy storage type supercharging electromagnetic plunge pump, described motion portion carries out the suction of aqueous solution of urea during to the upstroke of described energy storage type supercharging electromagnetic plunge pump and described energy storage device carries out energy storage, when described motion portion carries out downward movement to described energy storage type supercharging electromagnetic plunge pump, the common force feed that drives described plunger guide bush assembly to carry out aqueous solution of urea of described motion portion and described energy storage device.
2. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 1, it is characterized in that, described motion portion comprises hand basket and magnet assembly, described hand basket is fixedly connected with described magnet assembly, described stationary part comprises coil block, and described magnet assembly is sheathed on the outside of described coil block, described coil block drives described magnet assembly to move back and forth, described plunger guide bush assembly is sheathed in described coil block, and this coil block is connected with jointer.
3. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 2, it is characterized in that, described stationary part also comprises U soft magnetic bodies shell and upper cover, described upper cover is fixedly connected with the left end of described U soft magnetic bodies shell, described upper cover is provided with liquid inlet channel, and described U soft magnetic bodies shell is provided with back liquid runner.
4. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 2, it is characterized in that, described coil block comprises the first coil and the second coil, the direction of winding of the first described coil and the second described coil is contrary, and described magnet assembly comprises the first permanent magnet, the second permanent magnet, be arranged at the first soft magnetic bodies between the first described permanent magnet and described the second permanent magnet and be arranged at second soft magnetic bodies in the second described permanent magnet outside.
5. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 2, it is characterized in that, described coil block comprises the first coil, described magnet assembly comprises the first permanent magnet and the first soft magnetic bodies, and the first described soft magnetic bodies is arranged at the right-hand member of the first described permanent magnet.
6. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 2, it is characterized in that, described coil block comprises the first coil and supplementary soft magnetic bodies, described supplementary soft magnetic bodies is arranged at the right-hand member of the first described coil, and described magnet assembly comprises the first permanent magnet, the second permanent magnet, be arranged at the first soft magnetic bodies between the first described permanent magnet and described the second permanent magnet and be arranged at second soft magnetic bodies in the second described permanent magnet outside.
7. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 1, it is characterized in that, described plunger guide bush assembly comprises liquid feed valve, described liquid feed valve comprises plunger and the plunger bushing with center flow channels, described plunger is movably set in described plunger bushing, described liquid feed valve has inlet opening, and described inlet opening is communicated with described high pressure sap cavity, and described motion portion drives described plunger with respect to described plunger bushing motion.
8. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 7, it is characterized in that, described liquid feed valve also comprises feed liquor valve member and liquid feed valve spring, described plunger is provided with inlet opening, described plunger also comprises liquid feed valve seat surface, described liquid feed valve seat surface is communicated with described inlet opening, and described feed liquor valve member is against described liquid feed valve seat surface.
9. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 8, it is characterized in that, described stationary part is also provided with valve push rod, described valve push rod stretches into described high pressure sap cavity by described inlet opening, described motion portion carries out up when mobile, and described valve push rod carries out spacing to described feed liquor valve member.
10. the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system according to claim 7, it is characterized in that, described plunger guide bush assembly also comprises liquid valve and output cover, described liquid valve is arranged at the high-pressure outlet place of described plunger, described liquid valve comprises fluid valve member, liquid valve spring and liquid valve seat surface, and described liquid valve spring is against described fluid valve member and liquid valve seat surface.
The 11. energy storage type supercharging electromagnetic plunge pumps for SCR emission-reducing system according to claim 10, it is characterized in that, described energy storage type supercharging electromagnetic plunge pump is also provided with atomizer nozzle, described atomizer nozzle is for carrying out atomized spray to aqueous solution of urea, and described atomizer nozzle is connected with described output cover, or described atomizer nozzle replaces described liquid valve.
The 12. energy storage type supercharging electromagnetic plunge pumps for SCR emission-reducing system according to claim 11, it is characterized in that, when described atomizer nozzle is connected with described output cover, described atomizer nozzle comprises limiting board, jet-sub, injection push rod and poppet valve spring, described injection push rod and described limiting board are rigidly connected, between the limiting board described in described poppet valve spring is arranged at and described jet-sub.
13. 1 kinds comprise the SCR metering injection system of the energy storage type supercharging electromagnetic plunge pump for SCR emission-reducing system claimed in claim 1, it is characterized in that, described system comprises urea tank, catalytic muffler and described energy storage type supercharging electromagnetic plunge pump, described energy storage type supercharging electromagnetic plunge pump is connected with described urea tank, described energy storage type supercharging electromagnetic plunge pump suction aqueous solution of urea, and described energy storage type supercharging electromagnetic plunge pump is injected into aqueous solution of urea by exhaust pipe nozzle the front end of described catalytic muffler.
14. SCR metering injection systems according to claim 13, it is characterized in that, described energy storage type electromagnetism plunger pump separates setting with described urea tank, the suction passage of described energy storage type supercharging electromagnetic plunge pump is connected with described urea tank by the static pressure line with heating wire, returns liquid runner and adopts the liquid return pipe with heating wire to be connected with described urea tank.
15. SCR metering injection systems according to claim 13, it is characterized in that, described energy storage type supercharging electromagnetic plunge pump and described urea tank are integrated setting, and described energy storage type supercharging electromagnetic plunge pump is arranged at the side of described urea tank bottom or described urea tank; Or described energy storage type supercharging electromagnetic plunge pump is arranged at described urea tank top module integrated with urea tank level meter; Or described energy storage type supercharging electromagnetic plunge pump is placed on urea tank inside and makes submersible type setting, the suction passage of described energy storage type supercharging electromagnetic plunge pump is connected with described urea tank by the low-pressure delivery flexible pipe with heating wire, returns liquid runner and utilizes flexible pipe to be connected with described urea tank.
16. according to the SCR metering injection system described in claims 14 or 15, it is characterized in that, the high-voltage output connector of described energy storage type supercharging electromagnetic plunge pump is connected with mixing chamber, air-assisted atomization module provides air for described mixing air chamber, and pressure measuring tie-in is connected with described mixing chamber.
17. SCR metering injection systems according to claim 13, it is characterized in that, described energy storage type supercharging electromagnetic plunge pump and atomizer nozzle are integrated setting, and described atomizer nozzle is arranged at the front end of described catalytic muffler, and its periphery has cooling liquid cooling device.
18. SCR metering injection systems according to claim 17, it is characterized in that, between described energy storage type supercharging electromagnetic plunge pump and described atomizer nozzle, be provided with mixing chamber and air-assisted atomization module, and be provided with pressure transducer between described energy storage type supercharging electromagnetic plunge pump and atomizer nozzle.
19. SCR metering injection systems according to claim 13, it is characterized in that, the front end of described catalytic muffler is also provided with temperature transducer, the rear end of described catalytic muffler is provided with temperature transducer and NOx sensor, temperature transducer described in each is all connected with controller with described NOx sensor, this controller, for being connected with Vehicle Controller, being also provided with liquid level and taking into account the filter of urea tank temperature transducer, liquid sucting port and the auxiliary two-way suction pump of available use in described urea tank.
CN201420043236.9U 2014-01-23 2014-01-23 Energy storage type supercharging electromagnetic plunger pump for SCR emission reduction system and metering injection system Expired - Fee Related CN203730234U (en)

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Cited By (5)

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CN103742383A (en) * 2014-01-23 2014-04-23 苏州派格丽减排系统有限公司 Energy storage type supercharged electromagnetic plunger pump and measuring and injecting system used for SCR (Silicon Controlled Rectifier) emission reduction system
CN104976423A (en) * 2015-07-08 2015-10-14 北京福田戴姆勒汽车有限公司 Urea case water-break valve and urea case device having same
CN105673147A (en) * 2016-01-22 2016-06-15 潍柴动力股份有限公司 Pressure building method and device of SCR system
CN105986864A (en) * 2015-01-05 2016-10-05 浙江福爱电子有限公司 SCR injection system
CN106468201A (en) * 2015-08-17 2017-03-01 浙江福爱电子有限公司 A kind of hot environment liquid injection apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742383A (en) * 2014-01-23 2014-04-23 苏州派格丽减排系统有限公司 Energy storage type supercharged electromagnetic plunger pump and measuring and injecting system used for SCR (Silicon Controlled Rectifier) emission reduction system
CN105986864A (en) * 2015-01-05 2016-10-05 浙江福爱电子有限公司 SCR injection system
CN105986864B (en) * 2015-01-05 2019-05-17 浙江福爱电子有限公司 A kind of SCR spraying system
CN104976423A (en) * 2015-07-08 2015-10-14 北京福田戴姆勒汽车有限公司 Urea case water-break valve and urea case device having same
CN104976423B (en) * 2015-07-08 2017-06-16 北京福田戴姆勒汽车有限公司 A kind of urea box water-stop valve and the urea case apparatus with it
CN106468201A (en) * 2015-08-17 2017-03-01 浙江福爱电子有限公司 A kind of hot environment liquid injection apparatus
CN105673147A (en) * 2016-01-22 2016-06-15 潍柴动力股份有限公司 Pressure building method and device of SCR system
CN105673147B (en) * 2016-01-22 2018-08-31 潍柴动力股份有限公司 A kind of SCR system builds pressure method and device

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