CN108533370A - A kind of integrated system of urea tank and metering pump - Google Patents
A kind of integrated system of urea tank and metering pump Download PDFInfo
- Publication number
- CN108533370A CN108533370A CN201810253776.2A CN201810253776A CN108533370A CN 108533370 A CN108533370 A CN 108533370A CN 201810253776 A CN201810253776 A CN 201810253776A CN 108533370 A CN108533370 A CN 108533370A
- Authority
- CN
- China
- Prior art keywords
- metering pump
- urea tank
- urea
- integrated system
- mounting ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1433—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1486—Means to prevent the substance from freezing
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses the integrated systems of a kind of urea tank and metering pump, pass through spacing ring and mounting ring, metering pump is integrated in the first receiving hole of urea pot bottom by realization, that is metering pump portion stretches into inside urea tank, installation space can be effectively reduced, connecting line quantity and length of pipe are reduced, reduce cost and reduces internal resistance, efficiency of assembling is promoted, and is arranged neat and artistic；In addition, the setting of heating device, the urea liquid progress ice that can nearby freeze to metering pump, until urea injection system energy normal use.
Description
Technical field
The present invention relates to metering pump installing area more particularly to the integrated systems of a kind of urea tank and metering pump.
Background technology
It is most middle heavy since the standard of motor vehicle exhaust emission becomes to be increasingly stringenter with the development of automotive engineering
Card product increases after-treatment system in exhaust system；The system be by urea metering pump from urea tank by urea pump
Go out, and pressurize and be finally ejected into exhaust pipe, carrying out redox reaction with the NOx in tail gas reaches reduction pollutant emission
Purpose；Urea metering pump and urea tank are monomer structure at present, and two electrical heating urea tubes are used between urea tank and metering pump
Road is connected, and is allowed to form a circuit.
Prior art urea metering pump is separate structure with urea tank, and intermediate demand is connected using two electrical heating urea pipes
It connects, electrical heating urea tube cost is higher, this kind of structure causes integral vehicle cost to increase；And it after intermediate increase urea pipe, increases
Internal resistance causes metering pump pump urea difficult, metering pump can be caused to build pressure overlong time, or even the risk that can not pump out urea,
Eventually lead to the failures such as discharge is not up to standard or vehicle limit is turned round.
Invention content
The object of the present invention is to provide the integrated systems of a kind of urea tank and metering pump, to solve in the prior art ask
Topic, metering pump is integrated in urea tank, cost and internal resistance are reduced.
The present invention provides the integrated system of a kind of urea tank and metering pump, the integrated system of the urea tank and metering pump
Including：Urea tank and metering pump；
The integrated system of the urea tank and metering pump further includes spacing ring and mounting ring；
The urea pot bottom is provided with the first receiving hole, and restraining position ring block, the meter is arranged on the inside of first receiving hole
Amount pump stretches into mounting ring from the top down, and is clamped with mounting ring, and first below the spacing ring is arranged in the mounting ring
On the outside of receiving hole, and the metering pump portion is upward through spacing ring and stretches into inside urea tank, the mounting ring and the limit
Ring connects, and heating device is provided at metering pump in the urea tank.
Preferably, the metering pump periphery is provided with multiple defining flanges, the upper surface of the mounting ring be provided with
Each defining flange multiple limiting stands correspondingly, defining flange clamping corresponding with limiting stand.
Preferably, the spacing ring lower surface is provided with multiple hooks, it is provided in the mounting ring and each hook
One-to-one card slot, the card slot are used to coordinate with hook, and the limiting stand is formed between each two adjacent card slot, described
Card slot includes the first slot and the second slot of connection, and the width of the first slot is more than the second slot.
Limit protrusion is additionally provided at each card slot preferably, being corresponded in the mounting ring, corresponding limit on the hook
Position protrusion is additionally provided with limiting groove, and the limit protrusion is used to coordinate with limiting groove.
Preferably, the integrated system of the urea tank and metering pump further includes liquid level sensor, at the top of the urea tank
It is provided with the second receiving hole, the liquid level sensor partially passes through the second receiving hole and extends to inside urea tank.
Preferably, the liquid level sensor includes：
Cooling liquid outlet and coolant inlet is respectively set in spiral coil, the spiral coil both ends；
The tongue tube being vertically arranged is arranged with movable float on the tongue tube；
Plug connector, described plug connector one end are connect with tongue tube, and the other end with chassis ECU for connecting；
Fixing bracket is both provided with fixing bracket between tongue tube and spiral coil and on helical disk.
Preferably, the integrated system of the urea tank and metering pump further includes protective cover, the protective cover setting is being urinated
It below plain tank, and covers on metering pump, for protecting the metering pump.
Preferably, the protective cover includes：
Cover body, the side of the cover body are provided with opening, the patch of the interface of metering pump bottom, metering pump
Jet port is stretched out from the opening；
The outer peripheral edge of the cover body is provided with fixed seat, and mounting hole is provided in the fixed seat, is used for and urea tank
Bottom connects；
The inner peripheral of the cover body is provided with fixed flange, and the urea pot bottom is provided with corresponding fixing groove, institute
Fixed flange is stated with fixing groove to coordinate；
It is provided with ventilation hole on the side wall of the cover body.
Preferably, the outer peripheral edge of the spacing ring is provided with limit stabilizer blade, the limit stabilizer blade is used to accommodate with first
The edge in hole is clamped.
Preferably, the urea pot bottom is additionally provided with tap hole, bleeder valve is provided on the tap hole, and described
It is provided with sealing ring between bleeder valve and the tap hole.
The integrated system of urea tank provided by the invention and metering pump is realized by spacing ring and mounting ring by metering pump
It is integrated in the first receiving hole of urea pot bottom, that is, measures pump portion and stretch into inside urea tank, it is empty that installation can be effectively reduced
Between, connecting line quantity and length of pipe are reduced, cost is reduced and reduces internal resistance, promote efficiency of assembling, and arrange neat and artistic；
In addition, the setting of heating device, the urea liquid progress ice that can nearby freeze to metering pump, until urea injection system can be just
It is often used.
Description of the drawings
Fig. 1 is the structural schematic diagram of the integrated system of urea tank provided in an embodiment of the present invention and metering pump；
Fig. 2 is the structural schematic diagram of the integrated system of urea tank and metering pump that further embodiment of this invention provides；
Fig. 3 is the structural schematic diagram for the urea tank that further embodiment of this invention provides；
Fig. 4 is the scheme of installation for the metering pump that further embodiment of this invention provides；
Fig. 5 is the structural schematic diagram for the metering pump that further embodiment of this invention provides；
Fig. 6 is the structural schematic diagram for the mounting ring that further embodiment of this invention provides；
Fig. 7 is the structural schematic diagram for the spacing ring that further embodiment of this invention provides；
Fig. 8 is the structural schematic diagram for the liquid level sensor that further embodiment of this invention provides；
Fig. 9 is the structural schematic diagram for the protective cover that further embodiment of this invention provides；
Reference sign：
1- urea tanks, the first receiving holes of 11-, 12- fixing grooves,
2- metering pumps, 21- defining flanges, 22- interfaces, 23- jet ports,
3- liquid level sensors, 31- spiral coils, 32- coolant inlets, 33- cooling liquid outlets, 34- tongue tubes, 35- are floating
Son, 36- plug connectors, 37- fixing brackets,
4- protective covers, 41- fixed seats, 42- openings, 43- fixed flanges, 44- ventilation holes,
5- spacing rings, 51- hooks, 52- limiting grooves,
6- mounting rings, 61- limiting stands, 62- card slots, the first slots of 63-, the second slots of 64-, 65- limit protrusions,
7- bleeder valves.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in figs. 1-7, the present invention provides the integrated system of a kind of urea tank 1 and metering pump 2, the urea tank 1 with
The integrated system of metering pump 2 includes：Urea tank 1 and metering pump 2；
The urea tank 1 and the integrated system of metering pump 2 further include spacing ring 5 and mounting ring 6；
1 bottom of the urea tank is provided with the first receiving hole 11, and restraining position ring block 5 is arranged in first receiving hole, 11 inside,
The metering pump 2 is stretched into from the top down in mounting ring 6, and is clamped with mounting ring 6, and the mounting ring 6 is arranged in the spacing ring 5
11 outside of the first receiving hole of lower section, and 2 part of the metering pump is upward through spacing ring 5 and stretches into inside urea tank 1, the peace
Dress ring 6 is connect with the spacing ring 5, and heating device is provided at metering pump 2 in the urea tank 1.
1 volume of urea tank is 35L, and than about 5%, the use that can meet 700L fuel tanks is wanted for the consumption of urea and fuel oil
It asks；It is HDPE (high density polyethylene (HDPE)) that the urea tank 1, which uses blow molding process, material, and reliability is high；Metering pump 2 is sprayed to work
Range of flow is 0-5000ml/h, and accuracy of spray reaches ± 5%, outlet pressure 6bar, and injection metering pump 2 has parking pumpback
Function, pumpback time ＜ 30s can prevent Crystallization Plugging pipeline by the urea whole pumpback to urea tank 1 accumulated in pipeline；
1 bottom of urea tank carries bleeder valve 7, can periodically discharge the impurity of 1 building up inside of urea tank；The present invention provides
The integrated system of urea tank 1 and metering pump 2 realize and metering pump 2 be integrated in urea tank 1 by spacing ring 5 and mounting ring 6
In first receiving hole 11 of bottom, when specific installation, first mounting ring 6 is sleeved on from bottom to top on metering pump 2, to metering pump 2 to
Lower movement is limited, and then the two is whole moves upwards, i.e., the major part on 2 top of metering pump extend into urine across spacing ring 5
Inside plain pipe, spacing ring 5 and mounting ring 6 are then attached fixation, to realize the fixation to metering pump 2；
2 part of metering pump is stretched into inside urea tank 1 so that metering pump 2 is in direct contact with urea tank 1, can be effectively reduced
Installation space reduces connecting line quantity and length of pipe, reduces cost and reduces internal resistance, promotes efficiency of assembling, and arrange whole
Clean beauty；In addition, the setting of heating device (there are many heating device realization methods, such as resistance wire structure), it can be to metering pump 2
The urea liquid progress ice nearby to freeze, until urea injection system energy normal use.
As shown in figure 5, preferably, 2 periphery of the metering pump is provided with multiple defining flanges 21, the mounting ring 6
Upper surface be provided with the one-to-one multiple limiting stands 61 of each defining flange 21, the defining flange 21 and limiting stand 61 are right
It should be clamped.As shown in Figures 6 and 7, preferably, 5 lower surface of the spacing ring is provided with multiple hooks 51, in the mounting ring 6
It is provided with and is used to coordinate with hook 51 with 51 one-to-one card slot 62 of each hook, the card slot 62, each two adjacent card
Forming the limiting stand 61 between slot 62, the card slot 62 includes the first slot 63 and the second slot 64 of connection, and the first slot 63
Width is more than the second slot 64.As shown in fig. 6, being additionally provided with limit at each card slot 62 preferably, being corresponded in the mounting ring 6
Protrusion 65 correspond to limit protrusion 65 on the hook 51 and is additionally provided with limiting groove 52, the limit protrusion 65 for and limit
Groove 52 coordinates.
Wherein, limiting stand 61 can be a plane, i.e., form the plane between two card slots 62, defining flange 21 with
It metering pump 2 to be through in mounting ring 6, be stuck at the plane, the limit of metering pump 2 is fixed to realize；Card slot 62 is arranged to
Two one wide one narrow shapes, it is therefore intended that so that hook 51 first stretches into the first wider slot 63, then by relative rotation,
So that hook 51 enters the second relatively narrow slot 64, coordinate between hook 51 and the second relatively narrow slot 64 more closely, connection is more
Securely；And when hook 51 enters the second relatively narrow slot 64, limit protrusion 65 and 52 exactly in contact with of limiting groove simultaneously mutually fasten,
Further such that spacing ring 5 coordinates securely with mounting ring 6.
As shown in Figure 1, Fig. 8 is also can be found in, preferably, the urea tank 1 and the integrated system of metering pump 2 further include liquid
Level sensor 3,1 top of the urea tank are provided with the second receiving hole, and the liquid level sensor 3 partially passes through the second receiving hole and stretches
To urea tank 1.Preferably, the liquid level sensor 3 includes：Spiral coil 31,31 both ends of spiral coil difference
Cooling liquid outlet 33 and coolant inlet 32 are set；The tongue tube 34 being vertically arranged is arranged on the tongue tube 34 movable
Float 35；Plug connector 36,36 one end of the plug connector are connect with tongue tube 34, and the other end with chassis ECU for connecting；Fixed branch
Frame 37 is both provided with fixing bracket 37 between tongue tube 34 and spiral coil 31 and on helical disk.Metering pump 2 is integrated with urine
Plain liquid level, temperature and quality sensor are monitored urea height, temperature and density.
Wherein, spiral coil 31, tongue tube 34, fixing bracket 37 are respectively positioned in urea tank 1, cooling liquid outlet 33, cooling
Liquid entrance 32, plug connector 36 extend to outside urea tank 1, set coil pipe to spiral coil 31, can increase spiral coil 31 with
The contact area of urea enhances heat and transmits, and the coolant liquid of high temperature enters from coolant inlet 32, flows through entire spiral coil 31,
The urea that periphery is freezed can be heated, coolant liquid postbacks motivation, persistent loop from outlet stream later；It is in tongue tube 34
Multiple resistor coupled in parallel forms are equipped with multiple switch, and band is magnetic in float 35, and with the variation of liquid level, float 35 moves up and down,
Switch in tongue tube 34 is attracted, forming circuit, so that it may resistance signal is changed into liquid level signal, instrument is fed back to, and
It is connect with chassis controller (ECU) by interface 22.
As shown in figure 9, preferably, the urea tank 1 and the integrated system of metering pump 2 further include protective cover 4, the guarantor
Shield 4 is arranged below urea tank 1, and covers on metering pump 2, for protecting the metering pump 2.
Preferably, the protective cover 4 includes：
The side of cover body, the cover body is provided with opening 42, patch, the meter of the interface 22 of 2 bottom of metering pump
The jet port 23 of amount pump 2 is stretched out from the opening 42；
The outer peripheral edge of the cover body is provided with fixed seat 41, and mounting hole is provided in the fixed seat 41, is used for and urine
1 bottom of plain tank connects；
The inner peripheral of the cover body is provided with fixed flange 43, and 1 bottom of the urea tank is provided with corresponding fixing groove
12, the fixed flange 43 coordinates with fixing groove 12；
Ventilation hole 44 is provided on the side wall of the cover body.
Wherein, metering pump 2 is integrated in 1 bottom of urea tank, expose 1 part of urea tank shrouded by protective cover 4 prevent by slungshot,
Muddy water damages；Protective cover 4 is embedded by rotation in the fixing groove 12 of urea tank 1 by the fixed flange 43 of itself, is finally led to
Bolt is crossed to be fixed in urea tank 1 across mounting hole；Protective cover 4 itself is used for the heat dissipation of metering pump 2 with ventilation hole 44.
Preferably, the outer peripheral edge of the spacing ring 5 is provided with limit stabilizer blade, the limit stabilizer blade is used to accommodate with first
The edge in hole 11 is clamped.For spacing ring 5 to be fixed.
Preferably, 1 bottom of the urea tank is additionally provided with tap hole, bleeder valve 7, and institute are provided on the tap hole
It states and is provided with sealing ring between bleeder valve 7 and the tap hole.
Wherein, it is loaded at the tap hole of urea tank 1 by a mold insert, is molded with 1 integrally blow of urea tank in advance,
With internal thread；Finally bleeder valve 7 is mounted in urea tank 1, is coordinated with mold insert, centre increases sealing ring, prevents leakage；It puts
Liquid valve 7 and mold insert are all made of SUS304 materials, and resistant to urea corrosivity is preferable.
The structure, feature and effect of the present invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Change made by thinking, or is revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (10)
1. the integrated system of the integrated system of a kind of urea tank and metering pump, the urea tank and metering pump includes：Urea tank with
Metering pump；
It is characterized in that, the integrated system of the urea tank and metering pump further includes spacing ring and mounting ring；
The urea pot bottom is provided with the first receiving hole, and restraining position ring block, the metering pump is arranged on the inside of first receiving hole
It stretches into mounting ring, and is clamped with mounting ring from the top down, the first receiving that the mounting ring is arranged below the spacing ring
On the outside of hole, and the metering pump portion is upward through spacing ring and stretches into inside urea tank, and the mounting ring connects with the spacing ring
It connects, heating device is provided at metering pump in the urea tank.
2. the integrated system of urea tank according to claim 1 and metering pump, which is characterized in that the metering pump periphery is set
Be equipped with multiple defining flanges, the upper surface of the mounting ring be provided with each defining flange multiple limiting stands correspondingly,
Defining flange clamping corresponding with limiting stand.
3. the integrated system of urea tank according to claim 2 and metering pump, which is characterized in that the spacing ring lower surface
Be provided with multiple hooks, be provided in the mounting ring with the one-to-one card slot of each hook, the card slot is used for and hook
Coordinating, forms the limiting stand between each two adjacent card slot, the card slot includes the first slot and the second slot of connection, and the
The width of one slot is more than the second slot.
4. the integrated system of urea tank according to claim 3 and metering pump, which is characterized in that corresponding in the mounting ring
It is additionally provided with limit protrusion at each card slot, limit protrusion is corresponded on the hook and is additionally provided with limiting groove, the limit convex
It rises for coordinating with limiting groove.
5. the integrated system of urea tank according to claim 1 and metering pump, which is characterized in that the urea tank and metering
The integrated system of pump further includes liquid level sensor, and the second receiving hole, the liquid level sensor portion are provided at the top of the urea tank
Divide and is extended to inside urea tank across the second receiving hole.
6. the integrated system of urea tank according to claim 5 and metering pump, which is characterized in that the liquid level sensor packet
It includes：
Cooling liquid outlet and coolant inlet is respectively set in spiral coil, the spiral coil both ends；
The tongue tube being vertically arranged is arranged with movable float on the tongue tube；
Plug connector, described plug connector one end are connect with tongue tube, and the other end with chassis ECU for connecting；
Fixing bracket is both provided with fixing bracket between tongue tube and spiral coil and on helical disk.
7. the integrated system of urea tank according to claim 1 and metering pump, which is characterized in that the urea tank and metering
The integrated system of pump further includes protective cover, and the protective cover is arranged below urea tank, and is covered on metering pump, for protecting
The metering pump.
8. the integrated system of urea tank according to claim 7 and metering pump, which is characterized in that the protective cover includes：
The side of cover body, the cover body is provided with opening, the injection of the patch, metering pump of the interface of metering pump bottom
Mouth is stretched out from the opening；
The outer peripheral edge of the cover body is provided with fixed seat, and mounting hole is provided in the fixed seat, is used for and urea pot bottom
Connection；
The inner peripheral of the cover body is provided with fixed flange, and the urea pot bottom is provided with corresponding fixing groove, described solid
Determine flange with fixing groove to coordinate；
It is provided with ventilation hole on the side wall of the cover body.
9. the integrated system of urea tank according to claim 1 and metering pump, which is characterized in that the periphery of the spacing ring
Edge is provided with limit stabilizer blade, and the limit stabilizer blade is used to be clamped with the edge of the first receiving hole.
10. the integrated system of urea tank according to claim 1 and metering pump, which is characterized in that the urea pot bottom
It is additionally provided with tap hole, bleeder valve is provided on the tap hole, and is provided between the bleeder valve and the tap hole close
Seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253776.2A CN108533370A (en) | 2018-03-26 | 2018-03-26 | A kind of integrated system of urea tank and metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810253776.2A CN108533370A (en) | 2018-03-26 | 2018-03-26 | A kind of integrated system of urea tank and metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108533370A true CN108533370A (en) | 2018-09-14 |
Family
ID=63484857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810253776.2A Pending CN108533370A (en) | 2018-03-26 | 2018-03-26 | A kind of integrated system of urea tank and metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356695A (en) * | 2018-12-01 | 2019-02-19 | 郑州日产汽车有限公司 | Integrated form urea tank for pick up exhaust treatment system |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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