WO2017114060A1 - 集成装置、尾气后处理系统以及控制方法 - Google Patents

集成装置、尾气后处理系统以及控制方法 Download PDF

Info

Publication number
WO2017114060A1
WO2017114060A1 PCT/CN2016/107725 CN2016107725W WO2017114060A1 WO 2017114060 A1 WO2017114060 A1 WO 2017114060A1 CN 2016107725 W CN2016107725 W CN 2016107725W WO 2017114060 A1 WO2017114060 A1 WO 2017114060A1
Authority
WO
WIPO (PCT)
Prior art keywords
integrated device
housing
gear
nozzle
groove
Prior art date
Application number
PCT/CN2016/107725
Other languages
English (en)
French (fr)
Inventor
樊高峰
彭威波
杨振球
宋红卫
Original Assignee
天纳克（苏州）排放系统有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天纳克（苏州）排放系统有限公司 filed Critical 天纳克（苏州）排放系统有限公司
Publication of WO2017114060A1 publication Critical patent/WO2017114060A1/zh

Links

Images

Classifications

    • 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
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the invention relates to an integrated device, an exhaust gas aftertreatment system and a control method, and belongs to the technical field of engine exhaust aftertreatment.
  • the post-treatment technology commonly used in the industry is selective catalytic reduction (SCR), and the exhaust gas is installed upstream of the SCR.
  • SCR selective catalytic reduction
  • the urea solution is sprayed in.
  • the urea solution is hydrolyzed and pyrolyzed to generate ammonia gas, and chemically reacts with nitrogen oxides to reduce the concentration of harmful substances.
  • Urea injection systems currently on the market typically include air assist systems and non-air assist systems.
  • any system includes a urea tank assembly, a pump supply unit connected to the urea tank assembly through a low pressure line, a nozzle module connected to the pump supply unit through a high pressure line, and a controller.
  • the pump supply unit includes a urea pump, a pressure sensor, and the like, and the nozzle module includes a urea nozzle or the like.
  • the urea pump is spaced farther from the urea nozzle and is connected by a urea tube.
  • the existing urea injection system contains many components, and the installation is complicated and the cost is high.
  • the present invention adopts the following technical solutions:
  • An integrated device for a pump and a nozzle wherein the pump is for pumping a fluid medium to the nozzle, the nozzle for injecting the fluid medium into an exhaust of an engine
  • the integrated device comprising a housing, at least in part a pump assembly mounted within the housing and a nozzle assembly at least partially mounted within the housing, wherein the housing includes an inlet passage upstream of the pump assembly and in communication with the pump assembly and at the pump An outlet passage downstream of the assembly and in communication with the pump assembly, the outlet passage being in communication with the nozzle assembly;
  • the pump assembly including a motor coil for driving a pump, a magnetic body interacting with the motor coil, and each other Engaging the first gear assembly and the second gear assembly, wherein the first gear assembly includes a first gear shaft and a first gear fixed to the first gear shaft, the second gear assembly including a second gear shaft And a second gear fixed to the second gear shaft, the first gear and the second gear mesh with each other, and the integrated device is provided with the first gear shaft With the first sleeve and
  • the pump is a urea pump
  • the nozzle is a urea nozzle
  • the fluid medium is a urea solution.
  • the pump is a fuel pump
  • the nozzle is a fuel nozzle
  • the fluid medium is a fuel
  • the integrated device includes a controller connected to the motor coil and the nozzle coil, and the controller independently controls the urea pump and the urea nozzle, respectively.
  • the integrated device includes a pressure sensor in communication with the outlet passage and an overflow element connected between the outlet passage and the inlet passage.
  • the integrated device includes a temperature sensor installed in the housing.
  • the pump assembly includes a metal cover for housing the magnetic body, the motor coil is sleeved on a periphery of the metal cover; the first gear shaft is a drive shaft, and the first The two gear shafts are driven shafts, the first gear shaft is higher than the second gear shaft, and the magnetic body is provided with a shaft hole, and the first gear shaft is at least partially fixed in the shaft hole.
  • the pump assembly further includes an elastic body housed in the metal cover and located under the magnetic body, the elastic body being capable of being compressed to absorb the expansion caused by urea freezing. volume.
  • the housing is provided with a gear slot for receiving the first gear and the second gear, and the first gear is externally meshed with the second gear, and the gear groove is One side is provided with an inlet chamber communicating with the inlet passage, and the other side of the gear groove is provided with an outlet chamber communicating with the outlet passage.
  • the nozzle assembly includes a magnetic portion that interacts with the nozzle coil, a valve needle portion located below the magnetic portion, and acts between the magnetic portion and the valve needle portion a spring and a valve seat that cooperates with the valve needle portion.
  • the nozzle coil is located at a periphery of the magnetic portion, the valve needle portion is provided with a valve needle, and the valve seat is provided with an injection hole that cooperates with the valve needle.
  • the valve seat includes a swirling fin welded on the casing, the injection hole is disposed on the swirling fin, and the swirling fin is further provided with the A plurality of swirl grooves in which the injection holes communicate.
  • the integrated device is provided with a cooling assembly for cooling the urea nozzle, and the cooling assembly cools the urea nozzle by a cooling medium.
  • the casing is provided with a casing at the top, the casing is provided with a casing cavity; and the controller is provided with a control panel located in the casing cavity. Both the motor coil and the nozzle coil are electrically connected to the control board.
  • the cover is provided with a through hole communicating with the cavity of the cover and a waterproof and permeable cover fixed in the through hole; the control board is soldered with a cable plug, The cable plug is exposed outside the casing.
  • the housing is provided with a first housing and is clamped in the cover and the a connecting plate assembly between the first casings, the connecting plate assembly comprising a plate portion and a metal cover fixed on the plate portion and protruding upward, the magnetic body being received in the metal cover a motor coil is sleeved on a periphery of the metal cover;
  • the plate portion is provided with a plurality of mounting cylinders fixed thereon, the mounting cylinder is provided with internal threads, and the control panel is provided corresponding to the mounting cylinder A plurality of openings, a plurality of screws being screwed into the internal threads after passing through the openings to secure the control panel.
  • the motor coil is provided with a bracket and a coil wound on the bracket, and the bracket is provided with a hole for receiving the metal cover and a plurality of mounting posts extending downward.
  • the first housing is provided with a liquid inlet passage connected to the urea joint, the first housing including a first upper surface, a first lower surface and a first side, wherein The first upper surface is provided with a first annular groove, an island portion surrounded by the first annular groove, and a first sealing ring received in the first annular groove, the first sealing ring being located at the metal cover Lower, the plate portion presses down the first sealing ring; the island portion is provided with a first positioning hole penetrating the first upper surface and the first lower surface and penetrating the first lower hole a second positioning hole of the surface, the first sleeve is received in the first positioning hole, and the second sleeve is received in the second positioning hole.
  • the first lower surface is provided with a first relief groove that communicates with the first positioning hole and the second positioning hole.
  • the island portion further includes a liquid permeable hole penetrating the first upper surface and communicating with the second positioning hole, and penetrating the first upper surface and the first lower surface And a connecting hole that communicates with the inlet passage.
  • the first upper surface is further provided with a pressure sensor receiving hole located at a side of the island portion for receiving a pressure sensor;
  • the first housing is further provided with a downward through a receiving cavity of the first lower surface, the receiving cavity is configured to at least partially receive the nozzle assembly, and the receiving cavity is in communication with the pressure sensor receiving hole;
  • the first lower surface is provided with the outlet channel The first guiding groove is connected, and the inside of the first housing is provided with an inclined hole connecting the first guiding groove and the receiving cavity.
  • the housing includes a second housing below the first housing and connected to the first housing, the first housing and the second housing a first gasket is disposed between the bodies, the second casing includes a second upper surface, a second lower surface, and the second upper surface and the second lower surface for receiving the first gear and the second a gear groove of the two gears, one side of the gear groove is provided with an inlet chamber communicating with the connecting hole, and the other side of the gear groove is provided with an outlet chamber communicating with the first guiding groove.
  • the housing includes a third housing below the second housing and connected to the second housing, the second housing and the third housing a second gasket is disposed between the bodies, the third casing includes a body portion and an extension extending downward from the body portion, wherein the body portion is provided with a third upper surface, the third upper surface A receiving cavity for receiving the nozzle assembly is provided, the receiving cavity extending downwardly into the extension.
  • the third housing is provided with a third positioning hole penetrating the third upper surface, a fourth positioning hole penetrating the third upper surface, and the third positioning hole Second unloading with the fourth positioning hole
  • the integrated device is provided with a third sleeve received in the third positioning hole and a fourth sleeve received in the fourth positioning hole, and the upper end of the first gear shaft is positioned at the In the first bushing, a lower end of the first gear shaft is positioned in the third bushing, an upper end of the second gear shaft is positioned in the second bushing, and the second gear shaft is The lower end is positioned in the fourth bushing.
  • the third housing is provided with a second guiding groove and a third guiding groove on the third upper surface, the second guiding groove and the liquid discharging chamber The lower end is in communication, and the third flow guiding groove is in communication with the liquid inlet chamber.
  • the third housing is further provided with a first connecting groove that communicates with the third positioning hole and the third guiding groove, and communicates with the fourth positioning hole and the a second connecting groove of the second unloading groove.
  • the third housing is provided with a first channel communicating with the second guiding channel, a second channel communicating with the third guiding groove, and a connection between the third channel
  • An overflow element receiving groove between the first channel and the second channel the integrated device is provided with an overflow element installed in the overflow element receiving groove; when the pressure of the liquid outlet chamber is higher than When set, the overflow element opens to return a portion of the urea solution to the inlet passage.
  • the third housing is provided with a third side, the overflow element receiving groove extends outwardly through the third side, the overflow element is a safety valve, and the third The housing is provided with a receiving portion that protrudes from the third side and a plug that is fixed in the receiving portion to position the overflow element.
  • the nozzle assembly includes a magnetic portion that interacts with the nozzle coil, a valve needle portion that is coupled to the magnetic portion, and a spring that acts on the valve needle portion; the extension portion And a collecting chamber communicating with the receiving cavity, wherein the magnetic portion is at least partially received in the receiving cavity, and a portion of the magnetic portion protruding from the second upper surface is received in the receiving cavity.
  • the spring is installed in the magnetic portion and the valve needle portion, and the valve needle portion is provided with a tapered portion and a valve needle extending downward from the tapered portion.
  • a valve needle extending into the manifold, the magnetic portion being provided with a first communication hole communicating with the accommodation chamber, the valve needle portion being provided with a second communication hole communicating with the first communication hole
  • the tapered portion is provided with a third communication hole that communicates the second communication hole with the manifold.
  • the nozzle assembly includes a valve seat matched with the valve needle, the valve seat includes a swirling piece welded on the extending portion, and the swirling sheet is provided with An injection hole that cooperates with the valve needle and a plurality of swirl grooves that communicate with the injection hole, the swirl groove is in communication with the manifold.
  • the third housing is provided with a first cooling passage and a second cooling passage spaced from the first cooling passage, and the extension portion is provided to communicate with the first cooling passage And an annular cooling groove of the second cooling passage, the first cooling passage is connected to the inlet joint for injection of engine coolant, and the second cooling passage is connected with the outlet joint for the engine coolant to flow out.
  • the third casing is provided with a ring member welded on the extending portion to seal the annular cooling groove.
  • An integrated device of a urea pump and a urea nozzle wherein the urea pump is configured to pump a urea solution to the urea nozzle, the urea nozzle for injecting a urea solution into an exhaust gas of an engine, the integrated device comprising a shell a pump assembly at least partially mounted within the housing and a nozzle assembly at least partially mounted within the housing, wherein the housing includes an inlet passage upstream of the pump assembly and in communication with the pump assembly and An outlet passage downstream of the pump assembly and in communication with the pump assembly, the outlet passage being in communication with the nozzle assembly; the integrated device including an overflow connected between the outlet passage and the inlet passage An element, the pump assembly including a motor coil, a magnetic body interacting with the motor coil, and a first gear assembly and a second gear assembly that are intermeshing, wherein the first gear assembly includes a first gear shaft and is fixed at the a first gear on a first gear shaft, the second gear assembly including a second gear shaft and a second gear fixed to the
  • the integrated device includes a controller connected to the motor coil and the nozzle coil, and the controller independently controls the urea pump and the urea nozzle, respectively.
  • the housing is provided with a gear slot for receiving the first gear and the second gear, and the first gear is externally meshed with the second gear, and the gear groove is One side is provided with an inlet chamber communicating with the inlet passage, and the other side of the gear groove is provided with an outlet chamber communicating with the outlet passage.
  • the housing includes a first housing, the first housing includes a first upper surface and a first lower surface, wherein the first upper surface is provided with a first annular groove, a first sealing ring housed in the first annular groove and an island portion surrounded by the first annular groove; the first casing is provided with a liquid inlet passage connected to the urea joint, and the island portion is provided a first positioning hole penetrating the first upper surface and the first lower surface and a second positioning hole penetrating the first lower surface, the first sleeve is received in the first positioning hole, The second bushing is received in the second positioning hole.
  • the first lower surface is provided with a first relief groove that communicates with the first positioning hole and the second positioning hole.
  • the pump assembly includes a metal cover for housing the magnetic body, the first sealing ring is located below the metal cover; and the island portion further includes a first upper surface And a liquid permeable hole communicating with the second positioning hole and a connecting hole penetrating the first upper surface and the first lower surface and communicating with the inlet passage.
  • the first upper surface is further provided with a pressure sensor receiving hole located at a side of the island portion for receiving a pressure sensor;
  • the first housing is further provided with a downward through a receiving cavity of the first lower surface, the receiving cavity is configured to at least partially receive the nozzle assembly, and the receiving cavity is in communication with the pressure sensor receiving hole;
  • the first lower surface is provided with the outlet channel The first guiding groove is connected, and the inside of the first housing is provided with an inclined hole connecting the first guiding groove and the receiving cavity.
  • the housing includes a lower portion of the first housing and the a second housing connected to the housing, a first gasket is disposed between the first housing and the second housing, the second housing includes a second upper surface and a second lower surface, The gear groove extends through the second upper surface and the second lower surface.
  • the housing includes a third housing below the second housing and connected to the second housing, the second housing and the third housing a second gasket is disposed between the bodies, the third casing includes a body portion and an extension extending downward from the body portion, wherein the body portion is provided with a third upper surface, the third upper surface A receiving cavity for receiving the nozzle assembly is provided, the receiving cavity extending downwardly into the extension.
  • the third housing is provided with a third positioning hole penetrating the third upper surface, a fourth positioning hole penetrating the third upper surface, and the third positioning hole And the second unloading groove of the fourth positioning hole
  • the integrated device is provided with a third sleeve received in the third positioning hole and a fourth sleeve received in the fourth positioning hole, An upper end of the first gear shaft is positioned in the first sleeve, a lower end of the first gear shaft is positioned in the third sleeve, and an upper end of the second gear shaft is positioned at the second In the sleeve, a lower end of the second gear shaft is positioned in the fourth sleeve.
  • the third housing is provided with a second guiding groove and a third guiding groove on the third upper surface, the second guiding groove and the liquid discharging chamber The lower end is in communication, and the third flow guiding groove is in communication with the liquid inlet chamber.
  • the third housing is further provided with a first connecting groove that communicates with the third positioning hole and the third guiding groove, and communicates with the fourth positioning hole and the a second connecting groove of the second unloading groove.
  • the third housing is provided with a first channel communicating with the second guiding channel, a second channel communicating with the third guiding groove, and a connection between the third channel
  • the third housing is provided with a third side, the overflow element receiving groove extends outwardly through the third side, the overflow element is a safety valve, and the third The housing is provided with a receiving portion that protrudes from the third side and a plug that is fixed in the receiving portion to position the overflow element.
  • the extending portion is provided with a collecting chamber communicating with the receiving cavity, wherein the magnetic portion is at least partially received in the receiving cavity, and the magnetic portion protrudes from the first portion A portion of the upper surface is received in the receiving cavity.
  • the spring is installed in the magnetic portion and the valve needle portion, and the valve needle portion is provided with a tapered portion and a valve needle extending downward from the tapered portion.
  • a valve needle extending into the manifold, the magnetic portion being provided with a first communication hole communicating with the accommodation chamber, the valve needle portion being provided with a second communication hole communicating with the first communication hole
  • the tapered portion is provided with a third communication hole that communicates the second communication hole with the manifold.
  • the nozzle assembly includes a valve seat matched with the valve needle, the valve seat includes a swirling piece welded on the extending portion, and the swirling sheet is provided with An injection hole that cooperates with the valve needle and a plurality of swirl grooves that communicate with the injection hole, the swirl groove is in communication with the manifold.
  • the third housing is provided with a first cooling passage and a second cooling passage spaced from the first cooling passage, and the extension portion is provided to communicate with the first cooling passage And an annular cooling groove of the second cooling passage, the first cooling passage is connected to the inlet joint for injection of engine coolant, and the second cooling passage is connected with the outlet joint for the engine coolant to flow out.
  • the third casing is provided with a ring member welded on the extending portion to seal the annular cooling groove.
  • An exhaust aftertreatment system includes an exhaust aftertreatment exhaust system and an exhaust aftertreatment packaging system, wherein the injection system includes the aforementioned integrated device, the package system including a carrier downstream of the integrated device.
  • the carrier comprises selective catalytic reduction
  • the packaging system further comprises at least one mixer between the integrated device and the carrier.
  • a control method of an integrated device comprising:
  • the fluid medium is delivered to the nozzle through the outlet passage;
  • the motor coil and the nozzle coil are independently controlled.
  • the integrated device of the pump and the nozzle of the invention integrates the pump and the nozzle well, and has a simple and compact structure, which greatly facilitates the installation of the customer.
  • the motor coil and the nozzle coil by independently controlling the motor coil and the nozzle coil, mutual interference between the pump and the nozzle is avoided, and the accuracy of the control is improved.
  • the amount of urea injected into the exhaust gas can be appropriately proportioned with the nitrogen oxides, thereby reducing the excessive injection of urea. Risk of crystallization.
  • FIG. 1 is a schematic diagram of the exhaust gas aftertreatment system of the present invention applied to the treatment of engine exhaust.
  • Figure 2 is a schematic diagram of the integrated device of Figure 1.
  • FIG. 3 is a perspective view of an integrated device of the present invention in an embodiment.
  • Figure 4 is a perspective view of another angle of Figure 3.
  • Figure 5 is a perspective view of another angle of Figure 3.
  • Figure 6 is a left side view of Figure 3.
  • Figure 7 is a front elevational view of Figure 3.
  • Fig. 8 is a bottom view of Fig. 5;
  • Figure 9 is a plan view of Figure 5.
  • Figure 10 is a partial exploded perspective view of Figure 3 with the casing separated.
  • Figure 11 is a perspective view of the casing of Figure 10.
  • Figure 12 is a partially exploded perspective view of the casing of Figure 10 with the motor coils separated.
  • Figure 13 is a perspective view of the motor coil of Figure 12;
  • Figure 14 is a further exploded perspective view of Figure 12 with the control panel separated.
  • Figure 15 is an exploded perspective view showing the control panel and the motor coil of Figure 14 removed, wherein the connector assembly is separated.
  • Figure 16 is a perspective view of the connecting plate assembly of Figure 15.
  • Figure 17 is a partially exploded perspective view of the connecting plate assembly of Figure 15.
  • Figure 18 is a further exploded perspective view of Figure 15 in which the magnetic body and the elastomer are separated.
  • Figure 19 is a further exploded perspective view of Figure 18 with the first seal ring, temperature sensor, pressure sensor and second seal ring separated.
  • Fig. 20 is a partially exploded perspective view showing the first seal ring, the temperature sensor, the pressure sensor, the second seal ring, and the like in Fig. 19, wherein the first casing is separated.
  • Figure 21 is an exploded perspective view of the first housing of Figure 20;
  • Figure 22 is an exploded perspective view of Figure 21 at another angle.
  • Figure 23 is a perspective view of a portion of the first housing of Figure 21.
  • Figure 24 is a perspective view of Figure 23 at another angle.
  • Figure 25 is a plan view of Figure 24 .
  • Figure 26 is a plan view of Figure 23 .
  • Figure 27 is a schematic cross-sectional view taken along line C-C of Figure 26.
  • Figure 28 is a schematic cross-sectional view taken along line D-D of Figure 26.
  • Figure 29 is a further exploded perspective view of Figure 20 with the first gasket and the second locating pin separated.
  • Figure 30 is a partially exploded perspective view of the nozzle assembly of Figure 29.
  • Figure 31 is a perspective view of the first housing, the first gasket and the second positioning pin of Figure 29 removed.
  • Figure 32 is a plan view of Figure 31.
  • Figure 33 is a partial exploded perspective view of Figure 31 with the first gear assembly and the second gear assembly separated.
  • Figure 34 is an exploded perspective view showing the first gear assembly and the second gear assembly of Figure 33 removed, wherein the second housing and the third positioning pin are separated.
  • Figure 35 is a perspective view of the second housing of Figure 34.
  • Figure 36 is a perspective view of another angle of Figure 35.
  • FIG. 37 is a plan view of FIG. 35.
  • Figure 38 is an exploded perspective view showing the second housing and the third positioning pin of Figure 34 removed, wherein the nozzle assembly, the third sealing ring, the second gasket, and the like are separated.
  • Figure 39 is a perspective view of the third housing assembly of Figure 38.
  • Figure 40 is an exploded perspective view of Figure 39.
  • Figure 41 is an exploded perspective view of another angle of Figure 40.
  • Figure 42 is a perspective view of the third housing of Figure 39.
  • Figure 43 is a perspective view of another angle of Figure 42.
  • Figure 44 is a plan view of Figure 43.
  • Figure 45 is a plan view of Figure 42.
  • Figure 46 is a cross-sectional view taken along line E-E of Figure 45.
  • Figure 47 is a cross-sectional view taken along line F-F of Figure 45.
  • Figure 48 is a schematic cross-sectional view taken along line G-G of Figure 46.
  • Figure 49 is a cross-sectional view taken along line H-H of Figure 48.
  • Figure 50 is a cross-sectional view taken along line I-I of Figure 48.
  • Figure 51 is a cross-sectional view taken along line J-J of Figure 47.
  • Figure 52 is an exploded perspective view of Figure 3.
  • Figure 53 is a cross-sectional view taken along line A-A of Figure 9.
  • Figure 54 is a cross-sectional view taken along line B-B of Figure 9.
  • Figure 55 is a schematic cross-sectional view taken along line K-K of Figure 53.
  • Figure 56 is a schematic cross-sectional view taken along line L-L of Figure 53.
  • Figure 57 is a schematic cross-sectional view taken along line M-M of Figure 53.
  • Figure 58 is a schematic cross-sectional view taken along line N-N of Figure 53.
  • Figure 59 is a schematic cross-sectional view taken along line O-O of Figure 53.
  • Figure 60 is a schematic cross-sectional view taken along line P-P of Figure 53.
  • Figure 61 is a schematic cross-sectional view taken along line Q-Q of Figure 53.
  • the present invention discloses an exhaust aftertreatment system 100 that can be applied to treat exhaust gas from engine 10 to reduce emissions of hazardous materials to meet emission regulations.
  • the exhaust aftertreatment system 100 includes an exhaust aftertreatment injection system 200 and an exhaust aftertreatment packaging system 300, wherein the injection system 200 includes pumping urea solution from the urea tank 201 (see arrow X) And an integrated device 1 that injects urea solution into the exhaust of the engine 10 (eg, into the exhaust pipe 106 or within the packaging system 300); the packaging system 300 includes a mixer 301 located downstream of the integrated device 1 and located The carrier 302 downstream of the mixer 301.
  • the mixer may not be provided, or two or more mixers may be provided.
  • the carrier 302 can be, for example, a selective catalytic reduction (SCR) or the like.
  • the engine 10 has an engine coolant circulation circuit.
  • the engine coolant circulation circuit includes a first circulation circuit 101 (shown by a thick arrow Y) and a second circulation circuit 102 (refer to a thin arrow Z).
  • the first circulation loop 101 is used to cool the integrated device 1 to reduce It is at risk of being burnt out by the high temperature engine exhaust; the second circulation loop 102 is used to heat the urea tank 201 to achieve a heating defrosting function.
  • the integrated device 1 in the first circulation loop 101, is provided with an inlet joint 103 for the engine coolant to flow in and an outlet joint 104 for the engine coolant to flow out; in the second circulation loop 102, it is provided There is a control valve 105 to open or close the control valve 105 under suitable conditions to effect control of the second circulation loop 102.
  • the urea tank 201 is provided with a heating rod 202 connected to the second circulation loop 102 to heat and thaw the urea solution by using the temperature of the engine coolant.
  • the integrated device 1 of the present invention will be described in detail below.
  • the integrated device 1 of the present invention integrates the functions of the urea pump 11 and the urea nozzle 12.
  • the urea pump 11 includes, but is not limited to, a gear pump, a diaphragm pump, a plunger pump, a vane pump, and the like. It should be understood that the term "integrated" as used herein means that the urea pump 11 and the urea nozzle 12 can be mounted as a single unit on the exhaust pipe; or the urea pump 11 and the urea nozzle 12 are close to each other and pass through a shorter one.
  • the connecting pipe is connected and can be regarded as a device as a whole.
  • the exhaust gas post-treatment system 100 of the present invention is further provided with a controller 13.
  • the controller 13 may be integrated with or separate from the integrated device 1. Referring to FIG. 2, in the illustrated embodiment of the present invention, the controller 13 is integrated in the integrated device 1 to achieve high integration of parts and improve installation convenience of the client.
  • the integrated device 1 is provided with a housing 14 for mounting the urea pump 11 and the urea nozzle 12, the housing 14 being provided with an inlet passage connected between the urea tank 201 and the urea pump 11. 15 and an outlet passage 16 connected between the urea pump 11 and the urea nozzle 12.
  • inlet in the "inlet passage 15” and “outlet” in the “outlet passage 16" are referenced by the urea pump 11, that is, the upstream of the urea pump 11 is the inlet, and the urea pump 11 The downstream is the exit.
  • the outlet passage 16 is in communication with the urea nozzle 12 to pump a urea solution to the urea nozzle 12. It can be understood that the inlet passage 15 is located upstream of the urea pump 11 and is a low pressure passage; the outlet passage 16 is located downstream of the urea pump 11 and is a high pressure passage.
  • the integrated device 1 is provided with a temperature sensor 171 for detecting temperature.
  • the temperature sensor 171 may be disposed to communicate with the inlet passage 15 and/or the outlet passage 16; or the temperature sensor 171 may be disposed to be mounted at any position of the integrated device 1.
  • the signal detected by the temperature sensor 171 is transmitted to the controller 13, and the control algorithm designed by the controller 13 based on the input signal and other signals can improve the injection accuracy of the urea nozzle 12.
  • the integrated device 1 is also provided with a pressure sensor 172 for detecting pressure, the pressure sensor 172 being in communication with the outlet passage 16 to detect the pressure in the high pressure passage of the outlet of the urea pump 11.
  • the distance of the internal passage is relatively short, so that the position of the pressure sensor 172 can be considered to be relatively close to the urea nozzle 12.
  • An advantage of this design is that the pressure measured by the pressure sensor 172 is relatively close to the pressure in the urea nozzle 12, improving the accuracy of the data, thereby increasing the injection accuracy of the urea nozzle 12.
  • the integrated device 1 is further provided with an overflow element 173 connected between the outlet passage 16 and the inlet passage 15.
  • the overflow element 173 includes, but is not limited to, a relief valve, a safety valve, or an electrically controlled valve or the like.
  • the overflow The function of element 173 is to open the overflow element 173 when the pressure in the high pressure passage is above a set value, returning at least a portion of the urea solution located in the high pressure passage to the low pressure passage or directly returning to the urea tank 201 to achieve pressure regulation.
  • the urea pump 11 In order to drive the urea pump 11, the urea pump 11 is provided with a motor coil 111 that communicates with the controller 13. In order to drive the urea nozzle 12, the urea nozzle 12 is provided with a nozzle coil 121 that communicates with the controller 13.
  • the controller 13 communicates with the temperature sensor 171 and the pressure sensor 172 to transmit a temperature signal and a pressure signal to the controller 13.
  • the controller 13 can also receive other signals, such as signals from the CAN bus that are related to engine operating parameters.
  • the controller 13 can also obtain the rotational speed of the urea pump 11.
  • the acquisition of the rotational speed signal can be achieved by a corresponding rotational speed sensor 175 (hardware) or by a control algorithm (software).
  • the controller 13 independently controls the urea pump 11 and the urea nozzle 12. The advantage of such control is that the effect of the action of the urea pump 11 on the urea nozzle 12 can be reduced to achieve a relatively high control accuracy.
  • the integrated device 1 is also provided with a cooling assembly for this purpose, which cools the urea nozzle 12 by means of a cooling medium.
  • the cooling medium includes, but is not limited to, air, and/or engine coolant, and/or lubricating oil, and/or urea, and the like.
  • the illustrated embodiment of the present invention uses water cooling, i.e., cooling the urea nozzle 12 with engine coolant.
  • a cooling passage 141 is provided in the housing 14 for circulating coolant of the engine.
  • the main working principle of the integrated device 1 is as follows:
  • the controller 13 drives the urea pump 11 to operate.
  • the urea solution in the urea tank 201 is sucked into the urea pump 11 through the inlet passage 15, and after being pressurized, is sent to the urea nozzle 12 through the outlet passage 16.
  • the controller 13 collects and/or calculates required signals such as temperature, pressure, pump speed, and the like.
  • the controller 13 sends a control signal to the urea nozzle 12, such as energizing the nozzle coil 121, and by controlling the movement of the valve needle to effect urea injection.
  • the controller 13 sends a control signal to the urea pump 11 to control its rotational speed, thereby stabilizing the pressure of the system.
  • the controller 13 independently controls the urea pump 11 and the urea nozzle 12.
  • the integrated device 1 includes a housing 14 and a pump assembly 18 at least partially mounted in the housing 14.
  • Figure 10 a nozzle assembly 19 (see Figure 38) at least partially mounted within the housing 14, and a controller 13.
  • the housing 14 includes a cover 2 at the top and a first housing stacked under the cover 2 and stacked together. 3.
  • the first housing 3, the second housing 4, and the third housing 5 are each made of a metal material.
  • the casing 2 includes a casing cavity 21 for covering the controller 13 and at least a portion of the pump assembly 18 , and a through hole 22 communicating with the casing cavity 21 .
  • the controller 13 is usually mounted with electronic components, which are When it is in operation, it will generate heat, causing the air around it to expand.
  • the present invention solves the problem of crushing electronic components due to air expansion by providing the waterproof and permeable cover 24, and also has the function of waterproofing.
  • the waterproof venting cover 24 can improve the environment in which the controller 13 is placed to enable it to meet operating conditions.
  • the controller 13 includes a control board 131 and a cable plug 132 soldered to the control board 131.
  • the cable plug 132 passes through the casing 2 to be exposed to the outside for connection to an external circuit.
  • the control board 131 is provided with a plurality of openings 134 for the screws 133 to pass through to fix the control board 131.
  • the control panel 131 is annular and is provided with a central hole 135 at the center.
  • the cover 2 is made of a metal material having a better heat dissipation effect.
  • the cover 2 may also be provided with a plurality of fins (not shown) on the outside to enhance the heat dissipation effect.
  • the integrated device 1 is further provided with a connecting plate assembly 6 clamped between the casing 2 and the first casing 3. .
  • the function of the connecting plate assembly 6 includes at least fixing the control board 131.
  • the connecting plate assembly 6 is provided with a plate portion 61 and a metal cover 62 fixed to the plate portion 61 and convex upward.
  • the metal cover 62 passes upward through the center hole 135 of the control board 131.
  • the upper surface of the plate portion 61 is provided with a plurality of mounting cylinders 611 fixed thereto, and the mounting cylinders 611 are provided with internal threads.
  • the screw 133 is screwed into the internal thread after passing through the opening 134 of the control board 131 to fix the control board 131.
  • the control board 131 is mounted on the board portion 61 and forms a gap with the board portion 61 to facilitate better heat dissipation of the control board 131.
  • the plate portion 61 is further provided with a second mounting hole 612 corresponding to the first mounting hole 23 .
  • the lower surface of the plate portion 61 is provided with a downwardly projecting pressing block 613 for pressing down the temperature sensor 171.
  • the plate portion 61 is further provided with a first threading hole 614 and a second threading hole 615 extending through the upper and lower surfaces thereof.
  • the conductive line 1721 of the pressure sensor 172 and the conductive line 124 of the nozzle assembly 19 respectively pass through the first threading hole 614 and the second threading hole 615, and are electrically connected to the On the control board 131.
  • the housing 14 is also provided with a number of first positioning pins 616 clamped between the plate portion 61 and the first housing 3.
  • the plate portion 61 is provided with a through hole 617 corresponding to the metal cover 62.
  • the lower end of the metal cover 62 is welded to the inner wall of the through hole 617; the mounting cylinder 611 is welded to the upper surface of the plate portion 61.
  • the pump assembly 18 includes a urea pump 11.
  • the urea pump 11 is a gear pump including a motor coil 111, the metal cover 62, and the metal cover.
  • the motor coil 111 is provided with a bracket 112 and a coil 113 wound around the bracket 112.
  • the bracket 112 is provided with a hole 114 for receiving the metal cover 62 and a plurality of mounting posts 115 extending downward.
  • the post 115 is provided with a third mounting hole 116 corresponding to the first mounting hole 23 and the second mounting hole 612.
  • the motor coil 111 is sleeved on the outer periphery of the metal cover 62, and the plate portion 61 presses the first seal ring 73 to achieve sealing.
  • the elastic body 71 is located at the lower end of the magnetic body 72.
  • the magnetic body 72 is provided with a shaft hole 721, and the first gear assembly 74 is at least partially fixed in the shaft hole 721 after passing through the elastic body 71. It is well known that the volume of urea solution expands after icing. By providing the elastomer 71, the elastomer 71 can be compressed to absorb the expanded volume, thereby avoiding damage to other components due to volume expansion.
  • the first housing 3, the second housing 4, and the third housing 5 are machined parts, and are driven by bolts 66. And the top is fixed together.
  • the first housing 3 includes a first upper surface 31, a first lower surface 32, and a first side surface 33, wherein the first upper surface 31 is provided with a first annular groove 311 and surrounded by the first annular groove 311 Island Department 312.
  • the first annular groove 311 is configured to receive the first sealing ring 73.
  • the island portion 312 is provided with a first positioning hole 3121 extending through the first upper surface 31 and the first lower surface 32 , and penetrating the first lower surface 32 .
  • the first housing 3 is provided with a liquid inlet passage 332 extending through the first side surface 33 to be connected to the urea joint 331.
  • a filter screen 335 is provided in the urea joint 331 to filter the urea solution. Referring to FIG.
  • the connecting hole 3124 includes a first connecting hole 3125 communicating with the liquid inlet channel 332 and a second connecting hole 3126 communicating with the first connecting hole 3125, wherein the first connection A hole 3125 extends through the first lower surface 32, and the second connection hole 3126 extends through the first upper surface 31.
  • the urea pump 11 is provided with a first sleeve 76 received in the first positioning hole 3121 and a second sleeve 77 received in the second positioning hole 3122.
  • the first upper surface 31 is further provided with a pressure sensor receiving hole 313 located at the side of the island portion 312 for receiving the pressure sensor 172, and a side of the pressure sensor receiving hole 313 for accommodating the temperature sensor 171.
  • a second seal ring 317 is mounted on the pressure sensor 172 to seal against the inner wall of the pressure sensor receiving hole 313.
  • the pressure sensor 172 is pressed by the bottom of the sheet portion 61 to achieve fixation.
  • first housing 3 is further provided with an outwardly protruding mounting flange 315, and the mounting flange 315 is provided corresponding to the first mounting hole 23, the second mounting hole 612 and the third mounting hole.
  • the bolts 63 When assembled, the bolts 63 are sequentially passed through the fourth mounting hole 316, the second mounting hole 612, and the third mounting hole 116, and are fastened in the internal threads of the first mounting hole 23. With this arrangement, the first casing 3, the plate portion 61, the motor coil 111, the casing 2, and the like can be fixed.
  • the first lower surface 32 is provided with a first relief groove 321 that communicates with the first positioning hole 3121 and the second positioning hole 3122 to ensure pressure balance.
  • the first housing 3 is further provided with a downward through-the first lower surface 32.
  • the receiving cavity 322 is configured to at least partially receive the nozzle assembly 19 .
  • the receiving cavity 322 is in communication with the pressure sensor receiving hole 313.
  • the first lower surface 32 is provided with a first guiding groove 323, and the inside of the first housing 3 is provided with an inclined hole 324 that communicates with the first guiding groove 323 and the receiving cavity 322 (please refer to the figure). 27)).
  • the first flow guiding groove 323 has a curved shape.
  • the urea joint 331 is in communication with the urea tank 201 through a urea connection pipe 333.
  • the exhaust gas aftertreatment system 100 may further be provided with a heating device 334 that heats the urea connection pipe 333.
  • the liquid inlet passage 332 extends horizontally into the interior of the first casing 3.
  • the liquid inlet channel 332 can also be at an angle.
  • the urea solution enters the inlet passage 332 from the urea connection pipe 333, and then a portion of the urea solution enters the casing cavity 21 from the second connection hole 3126.
  • a part of the urea solution penetrates into the first sleeve 76 from the first positioning hole 3121; a part of the urea solution penetrates into the second sleeve 77 from the permeate hole 3123 and the second positioning hole 3122.
  • the upper portions of the first gear assembly 74 and the second gear assembly 75 can be wetted to improve the smoothness of the rotation and reduce wear.
  • a first gasket 40 is disposed between the first casing 3 and the second casing 4 to ensure a good seal between the two.
  • a plurality of second positioning pins 318 are further disposed between the first housing 3 and the second housing 4 for better positioning.
  • the first gear assembly 74 includes a first gear shaft 741 and a first gear 742 fixed to the first gear shaft 741; the second gear assembly 75 includes a second gear shaft. 751 and a second gear 752 fixed to the second gear shaft 751, the first gear 742 and the second gear 752 mesh with each other.
  • the first gear 742 is externally meshed with the second gear 752.
  • the first gear shaft 741 is a drive shaft
  • the second gear shaft 751 is a driven shaft
  • the first gear shaft 741 is higher than the second gear shaft 751.
  • the upper end of the first gear shaft 741 passes through the first sleeve 76 and is at least partially positioned in the shaft hole 721 of the magnetic body 72.
  • the upper end of the second gear shaft 751 is positioned in the second boss 77.
  • the second housing 4 is located below the first housing 3 and is connected to the first housing 3 .
  • the second housing 4 includes a second upper surface 41, a second lower surface 42 and a second upper surface 41 and a second lower surface 42 for receiving the The first gear 742 and the gear groove 43 of the second gear 752.
  • One side of the gear groove 43 is provided with an inlet chamber 431 communicating with the first connection hole 3125, and the other side of the gear groove 43 is provided with an outlet chamber 432 communicating with the outlet passage 16.
  • an upper end of the liquid discharge chamber 432 communicates with the receiving cavity 322 through the inclined hole 324.
  • the second upper surface 41 is provided with a first receiving hole 411 through which the nozzle assembly 19 passes, and the second lower surface 42 is provided with a second receiving hole 421 for positioning the nozzle assembly 19, the second The receiving hole 421 is larger than the first receiving hole 411 to form a stepped hole.
  • the nozzle assembly 19 protrudes upward from the second upper surface 41 and is housed in the same It is described in the liquid chamber 431. With this arrangement, a high pressure urea solution can be delivered to the urea nozzle 12.
  • the second upper surface 41 is further provided with a third threading hole 412 communicating with the second receiving hole 421 for the conductive wire 124 of the nozzle assembly 19 to pass through.
  • a second gasket 50 is disposed between the second casing 4 and the third casing 5 to ensure a better seal between the two.
  • a plurality of third positioning pins 418 are further disposed between the second housing 4 and the third housing 5 for better positioning.
  • the nozzle assembly 19 includes a urea nozzle 12.
  • the urea nozzle 12 includes a nozzle coil 121, a magnetic portion 81 that interacts with the nozzle coil 121, and a valve needle portion 82 located below the magnetic portion 81, acting on the A spring 83 between the magnetic portion 81 and the valve needle portion 82 and a valve seat 84 that cooperates with the valve needle portion 82 (shown in Fig. 53).
  • the nozzle coil 121 is wound around the periphery of the magnetic portion 81.
  • the urea nozzle 12 further includes a sleeve portion 122 that is sleeved around the periphery of the nozzle coil 121.
  • the spring 83 is mounted in the magnetic portion 81 and the valve needle portion 82.
  • the valve needle portion 82 is provided with a tapered portion 821 and a valve needle 822 extending downward from the tapered portion 821.
  • the valve seat 84 includes a swirling vane 85 welded to the third housing 5.
  • the swirling plate 85 is provided with an injection hole 851 that cooperates with the valve needle 822 and a plurality of swirl grooves 852 that communicate with the injection hole 851.
  • the third housing 5 is located below the second housing 4 and is connected to the second housing 4 .
  • the third housing 5 includes a main body portion 51, an extending portion 52 extending downward from the main body portion 51, and a mounting flange 53 extending outward from the main body portion 51, wherein the main body portion 51 is provided with a third upper portion Surface 511 and third side 512.
  • the third upper surface 511 is provided with a receiving cavity 54 for receiving the urea nozzle 12, and the receiving cavity 54 extends downward into the extending portion 52.
  • a lower portion of the sleeve portion 122 is received in the accommodating chamber 54 , and an upper portion of the sleeve portion 122 is received in the second accommodating hole 421 . As shown in FIG.
  • the magnetic portion 81 is sleeved with a third sealing ring 812 to seal the inner wall of the receiving cavity 322 .
  • a fourth sealing ring 123 is formed in the accommodating cavity 54 to cooperate with the urea nozzle 12 to achieve sealing with the inner wall of the accommodating cavity 54.
  • the extension portion 52 is provided with a manifold 521, and the valve needle 822 extends into the manifold 521.
  • the magnetic portion 81 is provided with a first communication hole 811 communicating with the accommodating chamber 515, and the valve needle portion 82 is provided with a second communication hole 823 communicating with the first communication hole 811, the tapered portion
  • the 821 is provided with a third communication hole 824 that communicates the second communication hole 823 with the manifold 521.
  • the swirl groove 852 is in communication with the manifold 521.
  • the third housing 5 is provided with a third positioning hole 5111 penetrating through the third upper surface 511, a fourth positioning hole 5122 extending through the third upper surface 511, and a third positioning hole 5111 communicating with the third positioning hole 5111.
  • the second unloading groove 5113 of the fourth positioning hole 5112 is described.
  • the third housing 5 is provided with a third sleeve 78 received in the third positioning hole 5111 and a fourth sleeve 79 received in the fourth positioning hole 5112 .
  • the lower end of the first gear shaft 741 is positioned in the third bushing 78, and the lower end of the second gear shaft 751 is positioned in the fourth bushing 79.
  • the third housing 5 is provided with a second guiding groove 5114 and a third guiding groove 5115 at the third upper surface 511, wherein the lower end of the liquid discharging chamber 432 and the second guiding groove 5114 Connected, the third flow guiding groove 5115 and the liquid inlet
  • the cavity 431 is in communication.
  • the second guiding groove 5114 and the third guiding groove 5115 are located at two sides of the third positioning hole 5111, the fourth positioning hole 5112 and the second relief groove 5113.
  • the third housing 5 is further provided with a first connecting groove 5141 communicating with the third positioning hole 5111 and the third guiding groove 5115, and communicating with the first portion.
  • the fourth positioning hole 5112 and the second connecting groove 5142 of the third guiding groove 5115 are respectively connected to the bottom of the third positioning hole 5111 and the fourth positioning hole 5112.
  • the third housing 5 is further provided with a first channel 5151 communicating with the second guiding channel 5114, and a second slot communicating with the third guiding groove 5115.
  • the overflow element receiving groove 5153 extends outward through the third side surface 512 to receive the overflow element 173.
  • the overflow element 173 is a safety valve in the illustrated embodiment of the invention, the purpose of which is to ensure that the pressure in the high pressure passage in the integrated device 1 is within a safe range by means of pressure relief.
  • the third housing 5 is provided with a receiving portion 5121 protruding from the third side surface 512 and a plug 5122 fixed in the receiving portion 5121 to position the overflow element 173. .
  • the overflow element 173 is closed, the second flow guiding groove 5114 is blocked from the third flow guiding groove 5115; and when the pressure is greater than the set value of the overflow element 173
  • the overflow element 173 is opened and a portion of the urea solution enters the third flow guiding groove 5115 to achieve pressure relief.
  • the inlet passage 15 includes a liquid inlet passage 332, a connection hole 3124, and an inlet chamber 431. Since the inlet passage 15 is located upstream of the urea pump 11, it is called a low pressure passage.
  • the outlet passage 16 includes a liquid outlet chamber 432, a first flow guiding groove 323, an inclined hole 324, a receiving cavity 322, a second guiding groove 5114, a first channel 5151, and the like. Since the outlet passage 16 is located downstream of the urea pump 11, it is referred to as a high pressure passage.
  • the third housing 5 is provided with the cooling assembly for cooling the urea nozzle 12.
  • the cooling assembly is a water cooled assembly.
  • the cooling passage 141 located in the third housing 5 includes a first cooling passage 516 penetrating the third side surface 512 and a second cooling passage 517 spaced apart from the first cooling passage 516.
  • the first cooling passage 516 is in communication with the inlet joint 103
  • the second cooling passage 517 is in communication with the outlet joint 104.
  • the extension portion 52 is provided with an annular cooling groove 522 that communicates with the first cooling passage 516 and the second cooling passage 517
  • the annular cooling groove 522 is located at the periphery of the collecting chamber 521 .
  • the third housing 5 is further provided with a ring member 55 welded to the extension portion 52 and located at the periphery of the valve seat 84 to seal the annular cooling groove 522.
  • the mounting flange 53 is integrally machined with the extension 52.
  • the mounting flange 53 can also be fabricated separately from the extension 52 and then welded together.
  • an integrated device is applied to inject fuel into the exhaust of the engine to effect regeneration of the downstream diesel particulate filter (DPF).
  • the urea pump 11 can be replaced with a fuel pump, which can be replaced with a fuel nozzle, which can be replaced with a fuel.
  • the urea pump and the fuel pump are collectively referred to as a pump
  • the urea nozzle and the fuel nozzle are collectively referred to as a nozzle
  • the urea solution and fuel are collectively referred to as a fluid medium.
  • the integrated device 1 of the present invention is an integrated design, which can omit or shorten the prior art urea pipe for connecting the pump and the nozzle, and can also save the prior art pump supply.
  • the connectors between the various sensors and the harness in the unit can also be used without the need to heat the defrosting device, so the reliability is high.
  • the integrated device 1 of the present invention is compact in structure and small in size, and is convenient for installation of various types of vehicles.
  • the internal fluid medium passage is short, the pressure drop is small, the dead volume between the pump and the nozzle is small, and the efficiency is high.
  • the temperature sensor 171 and the pressure sensor 172 are close to the nozzle, and the injection pressure accuracy is high.
  • the integrated device 1 of the present invention can be water-cooled so that the temperature of the urea remaining in the integrated device 1 does not reach the crystallization point, and crystallization is less likely to occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

一种泵与喷嘴的集成装置，其包括壳体（14）、泵组件（18）以及喷嘴组件（19），泵组件包括用以驱动泵的电机线圈（111）、与电机线圈（111）相互作用的磁性体（72）以及相互啮合的第一齿轮组件（74）与第二齿轮组件（75），其中第一齿轮组件（74）包括第一齿轮轴（741）以及第一齿轮（742），第二齿轮组件（75）包括第二齿轮轴（751）以及第二齿轮（752），集成装置设有与第一齿轮轴（741）相配合的第一轴套（76）以及与第二齿轮轴（751）相配合的第二轴套（77），喷嘴组件（19）包括用以驱动喷嘴的喷嘴线圈（121），其中电机线圈（111）与喷嘴线圈（121）分别进行独立控制，该集成装置结构简单、紧凑，控制精确较高。还涉及一种尾气后处理系统以及集成装置的控制方法。

Description

集成装置、尾气后处理系统以及控制方法
本申请要求了申请日为2015年12月31日、申请号为201511029707.6、发明名称为“集成装置、尾气后处理系统以及控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种集成装置、尾气后处理系统以及控制方法，属于发动机尾气后处理技术领域。
背景技术
随着内燃机汽车的排放标准越来越严，为了降低排气中氮氧化合物等有害物质，目前业界通常采用的后处理技术是选择性催化还原(SCR)，并在SCR的上游安装向排气中喷射尿素溶液。尿素溶液发生水解、热解产生氨气，并与氮氧化合物等发生化学反应，进而降低有害物质的浓度。
目前市场上的尿素喷射系统通常包括空气辅助系统和非空气辅助系统。当然，无论哪种系统均包括尿素箱总成、通过低压管道与所述尿素箱总成相连的泵供给单元、通过高压管道与泵供给单元相连的喷嘴模块以及控制器。泵供给单元中包括尿素泵以及压力传感器等，喷嘴模块包括尿素喷嘴等。尿素泵与尿素喷嘴间隔较远的距离，并通过尿素管相连。另外，现有的尿素喷射系统包含较多的零部件，安装复杂，成本较高。
因此，亟需提供一种新型的技术方案。
发明内容
本发明的目的在于提供一种控制比较精确的集成装置、尾气后处理系统以及控制方法。
为实现上述目的，本发明采用如下技术方案：
一种泵与喷嘴的集成装置，其中所述泵用以向所述喷嘴泵送流体介质，所述喷嘴用以向发动机的排气中喷射该流体介质，所述集成装置包括壳体、至少部分安装于所述壳体内的泵组件以及至少部分安装于所述壳体内的喷嘴组件，其中所述壳体包括位于所述泵组件的上游且与所述泵组件连通的入口通道以及位于所述泵组件的下游且与所述泵组件连通的出口通道，所述出口通道与所述喷嘴组件连通；所述泵组件包括用以驱动泵的电机线圈、与所述电机线圈相互作用的磁性体以及相互啮合的第一齿轮组件与第二齿轮组件，其中所述第一齿轮组件包括第一齿轮轴以及固定在所述第一齿轮轴上的第一齿轮，所述第二齿轮组件包括第二齿轮轴以及固定在所述第二齿轮轴上的第二齿轮，所述第一齿轮与所述第二齿轮相互啮合，所述集成装置设有与所述第一齿轮轴相配合的第一轴套以及与所述第二齿轮轴相配合的第二轴套；所述喷嘴组件包括用以驱动喷嘴的喷嘴线圈，其中所述电机线圈与所述喷嘴线圈分别进行独立控制。
作为本发明进一步改进的技术方案，所述泵为尿素泵，所述喷嘴为尿素喷嘴，所述流体介质为尿素溶液。
作为本发明进一步改进的技术方案，所述泵为燃料泵，所述喷嘴为燃料喷嘴，所述流体介质为燃料。
作为本发明进一步改进的技术方案，所述集成装置包括与所述电机线圈以及所述喷嘴线圈连接的控制器，所述控制器分别对所述尿素泵以及所述尿素喷嘴进行独立控制。
作为本发明进一步改进的技术方案，所述集成装置包括与所述出口通道连通的压力传感器以及连接在所述出口通道与所述入口通道之间的溢流元件。
作为本发明进一步改进的技术方案，所述集成装置包括安装在所述壳体内的温度传感器。
作为本发明进一步改进的技术方案，所述泵组件包括收容所述磁性体的金属罩，所述电机线圈套接在所述金属罩的外围；所述第一齿轮轴为主动轴，所述第二齿轮轴为从动轴，所述第一齿轮轴高于所述第二齿轮轴，所述磁性体设有轴孔，所述第一齿轮轴至少部分固定在所述轴孔内。
作为本发明进一步改进的技术方案，所述泵组件还包括收容在所述金属罩内且位于所述磁性体下方的弹性体，所述弹性体能够被压缩以吸收因尿素结冰所产生的膨胀体积。
作为本发明进一步改进的技术方案，所述壳体设有收容所述第一齿轮与所述第二齿轮的齿轮槽，所述第一齿轮与所述第二齿轮外啮合，所述齿轮槽的一侧设有与所述入口通道连通的进液腔，所述齿轮槽的另一侧设有与所述出口通道连通的出液腔。
作为本发明进一步改进的技术方案，所述喷嘴组件包括与所述喷嘴线圈相互作用的磁性部、位于所述磁性部下方的阀针部、作用在所述磁性部与所述阀针部之间的弹簧以及与所述阀针部配合的阀座。
作为本发明进一步改进的技术方案，所述喷嘴线圈位于所述磁性部的外围，所述阀针部设有阀针，所述阀座设有与所述阀针相配合的喷射孔。
作为本发明进一步改进的技术方案，所述阀座包括焊接在所述壳体上的旋流片，所述喷射孔设置在所述旋流片上，并且所述旋流片还设有与所述喷射孔连通的若干旋流槽。
作为本发明进一步改进的技术方案，所述集成装置设有用以冷却所述尿素喷嘴的冷却组件，所述冷却组件通过冷却介质对所述尿素喷嘴进行冷却。
作为本发明进一步改进的技术方案，所述壳体设有位于顶部的罩壳，所述罩壳设有罩壳腔体；所述控制器设有位于所述罩壳腔体内的控制板，所述电机线圈与所述喷嘴线圈均与所述控制板电性连接。
作为本发明进一步改进的技术方案，所述罩壳设有与所述罩壳腔体连通的通孔以及固定在所述通孔中的防水透气盖；所述控制板上焊接有排线插头，所述排线插头暴露在所述罩壳外。
作为本发明进一步改进的技术方案，所述壳体设有第一壳体以及夹持在所述罩壳与所述 第一壳体之间的连接板组件，所述连接板组件包括板片部以及固定在所述板片部上且向上凸起的金属罩，所述磁性体收容在所述金属罩内，所述电机线圈套接在所述金属罩的外围；所述板片部设有固定在其上的若干安装筒，所述安装筒设有内螺纹，所述控制板设有对应于所述安装筒的若干开孔，若干螺钉在穿过所述开孔之后被拧紧在所述内螺纹中以对所述控制板进行固定。
作为本发明进一步改进的技术方案，所述电机线圈设有支架以及缠绕在所述支架上的线圈，所述支架设有收容所述金属罩的孔以及向下延伸的若干安装柱。
作为本发明进一步改进的技术方案，所述第一壳体设有与尿素接头连接的进液通道，所述第一壳体包括第一上表面、第一下表面以及第一侧面，其中所述第一上表面设有第一环形槽、被所述第一环形槽包围的岛部以及收容在所述第一环形槽中的第一密封圈，所述第一密封圈位于所述金属罩的下方，所述板片部向下抵压所述第一密封圈；所述岛部设有贯穿所述第一上表面与所述第一下表面的第一定位孔以及贯穿所述第一下表面的第二定位孔，所述第一轴套收容在所述第一定位孔中，所述第二轴套收容在所述第二定位孔中。
作为本发明进一步改进的技术方案，所述第一下表面设有连通所述第一定位孔与所述第二定位孔的第一泄荷槽。
作为本发明进一步改进的技术方案，所述岛部还包括贯穿所述第一上表面且与所述第二定位孔连通的渗液孔以及贯穿所述第一上表面与所述第一下表面且与所述入口通道连通的连接孔。
作为本发明进一步改进的技术方案，所述第一上表面还设有位于所述岛部的旁侧且用以收容压力传感器的压力传感器收容孔；所述第一壳体还设有向下贯穿所述第一下表面的收容腔，所述收容腔用以至少部分收容所述喷嘴组件，所述收容腔与所述压力传感器收容孔连通；所述第一下表面设有与所述出口通道连通的第一导流槽，所述第一壳体的内部设有连通所述第一导流槽与所述收容腔的斜孔。
作为本发明进一步改进的技术方案，所述壳体包括位于所述第一壳体的下方且与所述第一壳体连接的第二壳体，所述第一壳体与所述第二壳体之间设有第一密封垫，所述第二壳体包括第二上表面、第二下表面以及贯穿所述第二上表面与第二下表面且用以收容所述第一齿轮以及第二齿轮的齿轮槽，所述齿轮槽的一侧设有与所述连接孔连通的进液腔，所述齿轮槽的另一侧设有与所述第一导流槽连通的出液腔。
作为本发明进一步改进的技术方案，所述壳体包括位于所述第二壳体的下方且与所述第二壳体连接的第三壳体，所述第二壳体与所述第三壳体之间设有第二密封垫，所述第三壳体包括主体部以及自所述主体部向下延伸的延伸部，其中所述主体部设有第三上表面，所述第三上表面设有收容所述喷嘴组件的容纳腔，所述容纳腔向下延伸入所述延伸部内。
作为本发明进一步改进的技术方案，所述第三壳体设有贯穿所述第三上表面的第三定位孔、贯穿所述第三上表面的第四定位孔以及连通所述第三定位孔与所述第四定位孔的第二卸 荷槽，所述集成装置设有收容于所述第三定位孔中的第三轴套以及收容于所述第四定位孔中的第四轴套，所述第一齿轮轴的上端定位在所述第一轴套中，所述第一齿轮轴的下端定位在所述第三轴套中，所述第二齿轮轴的上端定位在所述第二轴套中，所述第二齿轮轴的下端定位在所述第四轴套中。
作为本发明进一步改进的技术方案，所述第三壳体设有位于所述第三上表面的第二导流槽以及第三导流槽，所述第二导流槽与所述出液腔的下端连通，所述第三导流槽与所述进液腔连通。
作为本发明进一步改进的技术方案，所述第三壳体还设有连通所述第三定位孔与所述第三导流槽的第一连接槽，以及连通所述第四定位孔与所述第二卸荷槽的第二连接槽。
作为本发明进一步改进的技术方案，所述第三壳体设有与所述第二导流槽连通的第一槽道、与所述第三导流槽连通的第二槽道以及连接在所述第一槽道与所述第二槽道之间的溢流元件收容槽，所述集成装置设有安装于所述溢流元件收容槽内的溢流元件；当出液腔的压力高于设定值时，所述溢流元件打开以将部分尿素溶液返回到所述入口通道内。
作为本发明进一步改进的技术方案，所述第三壳体设有第三侧面，所述溢流元件收容槽向外贯穿所述第三侧面，所述溢流元件为安全阀，所述第三壳体设有凸出所述第三侧面的收容部以及固定在所述收容部中以定位所述溢流元件的塞子。
作为本发明进一步改进的技术方案，所述喷嘴组件包括与所述喷嘴线圈相互作用的磁性部、与所述磁性部连接的阀针部以及作用于所述阀针部的弹簧；所述延伸部设有与所述容纳腔连通的集流腔，其中所述磁性部至少部分收容于所述容纳腔中，所述磁性部凸出所述第二上表面的部分收容于所述收容腔中。
作为本发明进一步改进的技术方案，所述弹簧安装在所述磁性部与所述阀针部内，所述阀针部设有锥形部以及自所述锥形部向下延伸的阀针，所述阀针延伸入所述集流腔中，所述磁性部设有与所述容纳腔连通的第一连通孔，所述阀针部设有与所述第一连通孔连通的第二连通孔，所述锥形部设有将所述第二连通孔与所述集流腔连通的第三连通孔。
作为本发明进一步改进的技术方案，所述喷嘴组件包括所述阀针相配合的阀座，所述阀座包括焊接在所述延伸部上的旋流片，所述旋流片设有与所述阀针相配合的喷射孔以及与所述喷射孔连通的若干旋流槽，所述旋流槽与所述集流腔连通。
作为本发明进一步改进的技术方案，所述第三壳体设有第一冷却通道以及与所述第一冷却通道间隔设置的第二冷却通道，所述延伸部设有连通所述第一冷却通道与所述第二冷却通道的环形冷却槽，所述第一冷却通道与入口接头连接用以供发动机冷却液注入，所述第二冷却通道与出口接头连接用以供发动机冷却液流出。
作为本发明进一步改进的技术方案，所述第三壳体设有焊接在所述延伸部上的环形件以密封所述环形冷却槽。
本发明还揭示了如下技术方案：
一种尿素泵与尿素喷嘴的集成装置，其中所述尿素泵用以向所述尿素喷嘴泵送尿素溶液，所述尿素喷嘴用以向发动机的排气中喷射尿素溶液，所述集成装置包括壳体、至少部分安装于所述壳体内的泵组件以及至少部分安装于所述壳体内的喷嘴组件，其中所述壳体包括位于所述泵组件的上游且与所述泵组件连通的入口通道以及位于所述泵组件的下游且与所述泵组件连通的出口通道，所述出口通道与所述喷嘴组件连通；所述集成装置包括连接在所述出口通道与所述入口通道之间的溢流元件，所述泵组件包括电机线圈、与所述电机线圈相互作用的磁性体以及相互啮合的第一齿轮组件与第二齿轮组件，其中所述第一齿轮组件包括第一齿轮轴以及固定在所述第一齿轮轴上的第一齿轮，所述第二齿轮组件包括第二齿轮轴以及固定在所述第二齿轮轴上的第二齿轮，所述第一齿轮与所述第二齿轮相互啮合，所述集成装置设有与所述第一齿轮轴相配合的第一轴套以及与所述第二齿轮轴相配合的第二轴套；所述喷嘴组件包括喷嘴线圈、与所述喷嘴线圈相互作用的磁性部、位于所述磁性部下方的阀针部、施力于所述阀针部的弹簧以及与所述阀针部配合的阀座。
作为本发明进一步改进的技术方案，所述集成装置包括与所述电机线圈以及所述喷嘴线圈连接的控制器，所述控制器分别对所述尿素泵以及所述尿素喷嘴进行独立控制。
作为本发明进一步改进的技术方案，所述壳体设有收容所述第一齿轮与所述第二齿轮的齿轮槽，所述第一齿轮与所述第二齿轮外啮合，所述齿轮槽的一侧设有与所述入口通道连通的进液腔，所述齿轮槽的另一侧设有与所述出口通道连通的出液腔。
作为本发明进一步改进的技术方案，所述壳体包括第一壳体，所述第一壳体包括第一上表面以及第一下表面，其中所述第一上表面设有第一环形槽、收容于所述第一环形槽内的第一密封圈以及被所述第一环形槽包围的岛部；所述第一壳体设有与尿素接头连接的进液通道，所述岛部设有贯穿所述第一上表面与所述第一下表面的第一定位孔以及贯穿所述第一下表面的第二定位孔，所述第一轴套收容在所述第一定位孔中，所述第二轴套收容在所述第二定位孔中。
作为本发明进一步改进的技术方案，所述第一下表面设有连通所述第一定位孔与所述第二定位孔的第一泄荷槽。
作为本发明进一步改进的技术方案，所述泵组件包括收容所述磁性体的金属罩，所述第一密封圈位于所述金属罩的下方；所述岛部还包括贯穿所述第一上表面且与所述第二定位孔连通的渗液孔以及贯穿所述第一上表面与所述第一下表面且与所述入口通道连通的连接孔。
作为本发明进一步改进的技术方案，所述第一上表面还设有位于所述岛部的旁侧且用以收容压力传感器的压力传感器收容孔；所述第一壳体还设有向下贯穿所述第一下表面的收容腔，所述收容腔用以至少部分收容所述喷嘴组件，所述收容腔与所述压力传感器收容孔连通；所述第一下表面设有与所述出口通道连通的第一导流槽，所述第一壳体的内部设有连通所述第一导流槽与所述收容腔的斜孔。
作为本发明进一步改进的技术方案，所述壳体包括位于所述第一壳体的下方且与所述第 一壳体连接的第二壳体，所述第一壳体与所述第二壳体之间设有第一密封垫，所述第二壳体包括第二上表面以及第二下表面，所述齿轮槽贯穿所述第二上表面以及所述第二下表面。
作为本发明进一步改进的技术方案，所述壳体包括位于所述第二壳体的下方且与所述第二壳体连接的第三壳体，所述第二壳体与所述第三壳体之间设有第二密封垫，所述第三壳体包括主体部以及自所述主体部向下延伸的延伸部，其中所述主体部设有第三上表面，所述第三上表面设有收容所述喷嘴组件的容纳腔，所述容纳腔向下延伸入所述延伸部内。
作为本发明进一步改进的技术方案，所述第三壳体设有贯穿所述第三上表面的第三定位孔、贯穿所述第三上表面的第四定位孔以及连通所述第三定位孔与所述第四定位孔的第二卸荷槽，所述集成装置设有收容于所述第三定位孔中的第三轴套以及收容于所述第四定位孔中的第四轴套，所述第一齿轮轴的上端定位在所述第一轴套中，所述第一齿轮轴的下端定位在所述第三轴套中，所述第二齿轮轴的上端定位在所述第二轴套中，所述第二齿轮轴的下端定位在所述第四轴套中。
作为本发明进一步改进的技术方案，所述第三壳体设有位于所述第三上表面的第二导流槽以及第三导流槽，所述第二导流槽与所述出液腔的下端连通，所述第三导流槽与所述进液腔连通。
作为本发明进一步改进的技术方案，所述第三壳体还设有连通所述第三定位孔与所述第三导流槽的第一连接槽，以及连通所述第四定位孔与所述第二卸荷槽的第二连接槽。
作为本发明进一步改进的技术方案，所述第三壳体设有与所述第二导流槽连通的第一槽道、与所述第三导流槽连通的第二槽道以及连接在所述第一槽道与所述第二槽道之间的溢流元件收容槽，所述溢流元件安装在所述溢流元件收容槽中；当出液腔的压力高于设定值时，所述溢流元件打开以将部分尿素溶液返回到所述入口通道内。
作为本发明进一步改进的技术方案，所述第三壳体设有第三侧面，所述溢流元件收容槽向外贯穿所述第三侧面，所述溢流元件为安全阀，所述第三壳体设有凸出所述第三侧面的收容部以及固定在所述收容部中以定位所述溢流元件的塞子。
作为本发明进一步改进的技术方案，所述延伸部设有与所述容纳腔连通的集流腔，其中所述磁性部至少部分收容于所述容纳腔中，所述磁性部凸出所述第二上表面的部分收容于所述收容腔中。
作为本发明进一步改进的技术方案，所述弹簧安装在所述磁性部与所述阀针部内，所述阀针部设有锥形部以及自所述锥形部向下延伸的阀针，所述阀针延伸入所述集流腔中，所述磁性部设有与所述容纳腔连通的第一连通孔，所述阀针部设有与所述第一连通孔连通的第二连通孔，所述锥形部设有将所述第二连通孔与所述集流腔连通的第三连通孔。
作为本发明进一步改进的技术方案，所述喷嘴组件包括所述阀针相配合的阀座，所述阀座包括焊接在所述延伸部上的旋流片，所述旋流片设有与所述阀针相配合的喷射孔以及与所述喷射孔连通的若干旋流槽，所述旋流槽与所述集流腔连通。
作为本发明进一步改进的技术方案，所述第三壳体设有第一冷却通道以及与所述第一冷却通道间隔设置的第二冷却通道，所述延伸部设有连通所述第一冷却通道与所述第二冷却通道的环形冷却槽，所述第一冷却通道与入口接头连接用以供发动机冷却液注入，所述第二冷却通道与出口接头连接用以供发动机冷却液流出。
作为本发明进一步改进的技术方案，所述第三壳体设有焊接在所述延伸部上的环形件以密封所述环形冷却槽。
本发明还揭示了如下技术方案：
一种尾气后处理系统，包括尾气后处理的喷射系统以及尾气后处理的封装系统，其中所述喷射系统包括前述的集成装置，所述封装系统包括位于所述集成装置下游的载体。
作为本发明进一步改进的技术方案，所述载体包括选择性催化还原，所述封装系统还包括位于所述集成装置与所述载体之间的至少一个混合器。
本发明还揭示了如下技术方案：
一种集成装置的控制方法，所述集成装置为前述的集成装置，所述控制方法包括：
驱动所述泵运转，通过所述入口通道将所述流体介质吸入所述泵；
经过所述泵的加压之后，通过所述出口通道将该流体介质输送至所述喷嘴；
当达到喷射条件时，给所述喷嘴线圈通电，至少部分打开所述喷嘴以将该流体介质喷入所述发动机的排气中；其中：
所述电机线圈与所述喷嘴线圈分别进行独立控制。
相较于现有技术，本发明泵与喷嘴的集成装置很好的将泵与喷嘴集成在一起，结构简单、紧凑，极大地方便了客户的安装。另外，通过对电机线圈以及喷嘴线圈分别进行独立控制，从而避免了泵与喷嘴之间的相互干扰，提高了控制的精确性。在集成装置集成了尿素泵与尿素喷嘴的基础上，由于控制精度的提高，能够使喷入排气中的尿素的量与氮氧化合物达到合适的比例，降低了因过多喷射尿素而产生的结晶风险。
附图说明
图1是本发明的尾气后处理系统应用在处理发动机尾气时的原理图。
图2是图1中集成装置的原理图。
图3是本发明的集成装置在一种实施方式中的立体示意图。
图4是图3另一角度的立体示意图。
图5是图3再一角度的立体示意图。
图6是图3的左视图。
图7是图3的主视图。
图8是图5的仰视图。
图9是图5的俯视图。
图10是图3的部分立体分解图，其中罩壳被分离出来。
图11是图10中罩壳的立体示意图。
图12是去除图10中的罩壳后的部分立体分解图，其中电机线圈被分离出来。
图13是图12中电机线圈的立体示意图。
图14是图12进一步的立体分解图，其中控制板被分离出来。
图15是去除图14中的控制板以及电机线圈后的立体分解图，其中连接板组件被分离出来。
图16是图15中连接板组件的立体图。
图17是图15中连接板组件的部分立体分解图。
图18是图15进一步的立体分解图，其中磁性体以及弹性体被分离出来。
图19是图18进一步的立体分解图，其中第一密封圈、温度传感器、压力传感器以及第二密封圈被分离出来。
图20是去除图19中的第一密封圈、温度传感器、压力传感器以及第二密封圈等后的部分立体分解图，其中第一壳体被分离出来。
图21是图20中第一壳体的立体分解图。
图22是图21于另一角度的立体分解图。
图23是图21中部分第一壳体的立体图。
图24是图23于另一角度的立体图。
图25是图24的俯视图。
图26是图23的俯视图。
图27是沿图26中C-C线的剖面示意图。
图28是沿图26中D-D线的剖面示意图。
图29是图20进一步的立体分解图，其中第一密封垫以及第二定位销被分离出来。
图30是图29中喷嘴组件的部分立体分解图。
图31是去除图29中的第一壳体、第一密封垫以及第二定位销后的立体图。
图32是图31的俯视图。
图33是图31的部分立体分解图，其中第一齿轮组件与第二齿轮组件被分离出来。
图34是去除图33中的第一齿轮组件与第二齿轮组件之后的立体分解图，其中第二壳体以及第三定位销被分离出来。
图35是图34中第二壳体的立体示意图。
图36是图35另一角度的立体示意图。
图37是图35的俯视图。
图38是去除图34中第二壳体以及第三定位销之后的立体分解图，其中喷嘴组件、第三密封圈、第二密封垫等被分离出来。
图39是图38中第三壳体组件的立体示意图。
图40是图39的立体分解图。
图41是图40另一角度的立体分解图。
图42是图39中第三壳体的立体示意图。
图43是图42另一角度的立体示意图。
图44是图43的俯视图。
图45是图42的俯视图。
图46是沿图45中E-E线的剖面示意图。
图47是沿图45中F-F线的剖面示意图。
图48是沿图46中G-G线的剖面示意图。
图49是沿图48中H-H线的剖面示意图。
图50是沿图48中I-I线的剖面示意图。
图51是沿图47中J-J线的剖面示意图。
图52是图3的立体分解图。
图53是沿图9中A-A线的剖面示意图。
图54是沿图9中B-B线的剖面示意图。
图55是沿图53中K-K线的剖面示意图。
图56是沿图53中L-L线的剖面示意图。
图57是沿图53中M-M线的剖面示意图。
图58是沿图53中N-N线的剖面示意图。
图59是沿图53中O-O线的剖面示意图。
图60是沿图53中P-P线的剖面示意图。
图61是沿图53中Q-Q线的剖面示意图。
具体实施方式
请参图1所示，本发明揭示了一种尾气后处理系统100，能够应用于处理发动机10的尾气，降低有害物质的排放以满足排放法规的要求。所述尾气后处理系统100包括尾气后处理的喷射系统200以及尾气后处理的封装系统300，其中所述喷射系统包括200包括用以从尿素箱201中泵送尿素溶液(参箭头X所示)以及向所述发动机10的排气(例如向排气管106或者封装系统300内)中喷射尿素溶液的集成装置1；所述封装系统300包括位于所述集成装置1下游的混合器301以及位于所述混合器301下游的载体302。当然，在某些实施方式中也可以不设置混合器，或者设置两个或者两个以上的混合器。所述载体302可以例如是选择性催化还原(SCR)等。
所述发动机10具有发动机冷却液循环回路。请参图1所示，在本发明图示的实施方式中，所述发动机冷却液循环回路包括第一循环回路101(参粗箭头Y所示)以及第二循环回路102(参细箭头Z所示)，其中所述第一循环回路101用以冷却所述集成装置1，以降低 其被高温的发动机排气烧坏的风险；所述第二循环回路102用以加热所述尿素箱201，以实现加热解冻功能。可以理解的是，在第一循环回路101中，所述集成装置1设有供发动机冷却液流入的入口接头103以及供发动机冷却液流出的出口接头104；在第二循环回路102中，其设有控制阀105，以在适宜的条件下打开或者关闭所述控制阀105，实现对第二循环回路102的控制。所述尿素箱201中设有连接在所述第二循环回路102中的加热棒202，以利用发动机冷却液的温度对尿素溶液进行加热解冻。
以下就本发明的集成装置1进行详细描述。
请参图2所示，从原理上看，本发明的集成装置1集成了尿素泵11与尿素喷嘴12的功能。所述尿素泵11包括但不限于齿轮泵、膜片泵、柱塞泵或者叶片泵等。应该理解的是，在此使用的术语“集成”指的是尿素泵11与尿素喷嘴12可以作为单一装置被安装在排气管上；或者尿素泵11与尿素喷嘴12相互靠近并通过较短的连接管道进行连接，在整体上可以被视为一个装置。
另外，为了对尿素泵11以及尿素喷嘴12进行独立控制，本发明的尾气后处理系统100还设有控制器13。可以理解，所述控制器13可以与所述集成装置1集成在一起或者与所述集成装置1分开设置。请参图2所示，在本发明图示的实施方式中，所述控制器13集成在所述集成装置1内，以实现零件的高度集成化，提高客户端的安装便利性。
所述集成装置1设有用以安装所述尿素泵11与所述尿素喷嘴12的壳体14，所述壳体14设有连接在所述尿素箱201与所述尿素泵11之间的入口通道15以及连接在所述尿素泵11与所述尿素喷嘴12之间的出口通道16。需要说明的是，这里使用的术语“入口通道15”中的“入口”与“出口通道16”中的“出口”是以尿素泵11作为参照，即尿素泵11的上游为入口，尿素泵11的下游为出口。所述出口通道16与所述尿素喷嘴12连通，以向所述尿素喷嘴12泵送尿素溶液。可以理解的是，所述入口通道15位于尿素泵11的上游，为低压通道；所述出口通道16位于尿素泵11的下游，为高压通道。
另外，所述集成装置1设有用以检测温度的温度传感器171。所述温度传感器171可以被设置为与所述入口通道15及/或所述出口通道16连通；或者所述温度传感器171可以被设置为安装在所述集成装置1的任意位置。所述温度传感器171检测到的信号传递给控制器13，控制器13基于该输入信号以及其他信号所设计的控制算法能够提高尿素喷嘴12的喷射精度。所述集成装置1还设有用以检测压力的压力传感器172，所述压力传感器172与所述出口通道16连通，以检测尿素泵11出口的高压通道中的压力。由于本发明的集成设计，内部通道的距离比较短，因此可以认为所述压力传感器172的位置比较靠近所述尿素喷嘴12。这种设计的优点在于压力传感器172所测得的压力比较接近尿素喷嘴12中的压力，提高了数据的精确性，进而提高了尿素喷嘴12的喷射精度。
请参图2所示，所述集成装置1还设有连接在所述出口通道16与所述入口通道15之间的溢流元件173。所述溢流元件173包括但不限于溢流阀、安全阀或者电控阀等。所述溢流 元件173的功能是当高压通道中的压力高于设定值时，将所述溢流元件173打开，将至少一部分位于高压通道中的尿素溶液返回到低压通道中或者直接返回到所述尿素箱201中，以实现压力调节。
为了驱动尿素泵11，所述尿素泵11设有与所述控制器13进行通讯的电机线圈111。为了驱动尿素喷嘴12，所述尿素喷嘴12设有与所述控制器13进行通讯的喷嘴线圈121。
所述控制器13与所述温度传感器171以及所述压力传感器172进行通讯，以将温度信号以及压力信号传送给所述控制器13。当然，为了能够实现精确控制，所述控制器13还可以接收其他信号，例如来自CAN总线的、与发动机运行参数有关的信号。另外，所述控制器13还可以获得所述尿素泵11的转速，当然，转速信号的采集可以通过相应的转速传感器175(硬件)或者通过控制算法(软件)来实现。所述控制器13分别对所述尿素泵11以及所述尿素喷嘴12进行独立控制。这种控制的优点在于能够降低尿素泵11的动作对尿素喷嘴12的影响，以实现比较高的控制精度。
另外，在某些工况下，由于发动机的排气具有较高的温度，而尿素喷嘴12又是安装在排气管上的，因此需要对所述尿素喷嘴12进行冷却。所述集成装置1为此还设有冷却组件，所述冷却组件通过冷却介质对所述尿素喷嘴12进行冷却。所述冷却介质包括但不限于空气、及/或发动机冷却液、及/或润滑油、及/或尿素等。请参图2所示，本发明图示的实施方式采用水冷，即采用发动机冷却液对尿素喷嘴12进行冷却。所述壳体14内设有用以供发动机冷却液流通的冷却通道141。
请参图2所示，所述集成装置1的主要工作原理如下：
控制器13驱动尿素泵11运转，位于尿素箱201中尿素溶液通过入口通道15被吸入尿素泵11，经过加压之后，再通过出口通道16输送至尿素喷嘴12。其中，控制器13采集及/或计算需要的信号，例如温度、压力、泵转速等。当达到喷射条件时，控制器13发出控制信号给尿素喷嘴12，例如给喷嘴线圈121通电，通过控制阀针的运动来实现尿素喷射。控制器13发出控制信号给尿素泵11以控制其转速，从而稳定系统的压力。在本发明图示的实施方式中，所述控制器13分别对所述尿素泵11以及所述尿素喷嘴12进行独立控制。
请参图3至图61所示，从结构上看，本发明图示的实施方式中，所述集成装置1包括壳体14、至少部分安装于所述壳体14内的泵组件18(参图10)、至少部分安装于所述壳体14内的喷嘴组件19(参图38)、以及控制器13。
请参图3至图9所示，在本发明图示的实施方式中，所述壳体14包括位于顶部的罩壳2以及位于所述罩壳2的下方且堆叠在一起的第一壳体3、第二壳体4以及第三壳体5。在本发明图示的实施方式中，所述第一壳体3、第二壳体4以及第三壳体5均由金属材料制成。
请参图10及图11所示，所述罩壳2包括用以遮盖所述控制器13以及至少部分泵组件18的罩壳腔体21、与所述罩壳腔体21连通的通孔22、位于周边的若干第一安装孔23以及固定在所述通孔22中的防水透气盖24。所述控制器13上通常安装有电子元器件，它们在 工作时会发热，导致其周围的空气膨胀，本发明通过设置防水透气盖24很好地解决了因空气膨胀而压坏电子元器件的问题，同时也能起到防水的功效。另外，所述防水透气盖24能够改善控制器13所处的环境，使其能够满足工作条件。
请参图12及图14所示，所述控制器13包括控制板131以及焊接在所述控制板131上的排线插头132。所述排线插头132穿过所述罩壳2以暴露在外面，用以与外部电路相连接。所述控制板131设有用以供螺钉133穿过的若干开孔134，以固定所述控制板131。另外，在本发明图示的实施方式中，所述控制板131呈环状，其设有位于中部的中心孔135。
在本发明图示的实施方式中，为了提高控制板131的散热性能，所述罩壳2是由散热效果较好的金属材料制成。另外，所述罩壳2还可以设有位于外部的若干散热片(未图示)，以增强散热效果。
请参图3、图10、图12、图14至图17所示，所述集成装置1还设有夹持在所述罩壳2与所述第一壳体3之间的连接板组件6。所述连接板组件6的功能至少包括将所述控制板131进行固定。具体地，所述连接板组件6设有板片部61以及固定在所述板片部61上且向上凸起的金属罩62。所述金属罩62向上穿过所述控制板131的中心孔135。所述板片部61的上表面设有固定在其上的若干安装筒611，所述安装筒611设有内螺纹。所述螺钉133在穿过控制板131的开孔134之后被拧紧在所述内螺纹中，以对所述控制板131进行固定。请参图12所示，所述控制板131架设在所述板片部61上且与所述板片部61之间形成间隙，以利于所述控制板131进行更好的散热。
请参图15所示，所述板片部61还设有对应于所述第一安装孔23的第二安装孔612。所述板片部61的下表面设有向下凸出的抵压块613，用以向下压住温度传感器171。所述板片部61还设有贯穿其上、下表面的第一穿线孔614以及第二穿线孔615。请参图12及图15所示，压力传感器172的导电线1721以及喷嘴组件19的导电线124分别对应穿过所述第一穿线孔614以及第二穿线孔615，并电性连接到所述控制板131上。此外，为了更好地实现定位，所述壳体14还设有夹持在所述板片部61与所述第一壳体3之间的若干第一定位销616。板片部61设有对应所述金属罩62的穿孔617。在本发明图示的实施方式中，所述金属罩62的下端焊接在所述穿孔617的内壁上；所述安装筒611焊接在所述板片部61的上表面上。
所述泵组件18包括尿素泵11。请参图12至图14及图31所示，在本发明图示的实施方式中，所述尿素泵11为齿轮泵，其包括电机线圈111、所述金属罩62、收容于所述金属罩62内的弹性体71与磁性体72、位于所述金属罩62下方的第一密封圈73、以及相互啮合的第一齿轮组件74与第二齿轮组件75。由于齿轮泵能够建立比较大的工作压力，因此有利于提高尿素喷嘴12的雾化效果。另外，齿轮泵还能够反转，利于抽空残留的尿素溶液，降低尿素结晶的风险。所述电机线圈111设有支架112以及缠绕在所述支架112上的线圈113。所述支架112设有收容所述金属罩62的孔114以及向下延伸的若干安装柱115。所述安装 柱115设有对应于所述第一安装孔23与第二安装孔612的第三安装孔116。
请参图10及图54所示，所述电机线圈111套接在所述金属罩62的外围，所述板片部61压住所述第一密封圈73以实现密封。在本发明图示的实施方式中，所述弹性体71位于所述磁性体72的下端。所述磁性体72设有轴孔721，所述第一齿轮组件74穿过所述弹性体71后至少部分固定在所述轴孔721中。众所周知，尿素溶液在结冰之后，体积会发生膨胀。本发明通过设置弹性体71，弹性体71能够被压缩以吸收该膨胀的体积，从而避免因体积膨胀而破坏其他元件。
请参图18至图52所示，在本发明图示的实施方式中，所述第一壳体3、第二壳体4以及第三壳体5是机加工件，并通过螺栓66自下而上固定在一起。所述第一壳体3包括第一上表面31、第一下表面32以及第一侧面33，其中所述第一上表面31设有第一环形槽311以及被所述第一环形槽311包围的岛部312。所述第一环形槽311用以收容所述第一密封圈73。
请参图23至图28所示，所述岛部312设有贯穿所述第一上表面31与所述第一下表面32的第一定位孔3121、贯穿所述第一下表面32的第二定位孔3122、贯穿所述第一上表面31且与所述第二定位孔3122连通的渗液孔3123、以及贯穿所述第一上表面31与所述第一下表面32且与所述入口通道15连通的连接孔3124。所述第一壳体3设有贯穿所述第一侧面33以与尿素接头331连接的进液通道332。在本发明图示的实施方式中，所述尿素接头331中设有过滤网335，以对尿素溶液进行过滤。请参图28所示，所述连接孔3124包括与所述进液通道332连通的第一连接孔3125以及与所述第一连接孔3125连通的第二连接孔3126，其中所述第一连接孔3125贯穿所述第一下表面32，所述第二连接孔3126贯穿所述第一上表面31。
请参图21及图22所示，所述尿素泵11设有收容于所述第一定位孔3121内的第一轴套76以及收容于所述第二定位孔3122内的第二轴套77。所述第一上表面31还设有位于所述岛部312旁侧且用以收容压力传感器172的压力传感器收容孔313，以及位于压力传感器收容孔313的旁侧且用以收容温度传感器171的温度传感器收容孔314。所述压力传感器172上安装有第二密封圈317以与所述压力传感器收容孔313的内壁实现密封。所述压力传感器172被所述板片部61的底部压住，以实现固定。另外，所述第一壳体3还设有向外凸出的安装凸缘315，所述安装凸缘315设有对应于所述第一安装孔23、第二安装孔612以及第三安装孔116的第四安装孔316。
组装时，将螺栓63依次穿过第四安装孔316、第二安装孔612以及第三安装孔116，并紧固在第一安装孔23的内螺纹中。如此设置，能够将第一壳体3、板片部61、电机线圈111以及罩壳2等实现固定。
所述第一下表面32设有连通所述第一定位孔3121与所述第二定位孔3122的第一泄荷槽321，以确保压力平衡。另外，所述第一壳体3还设有向下贯穿所述第一下表面32的收 容腔322。所述收容腔322用以至少部分收容所述喷嘴组件19。所述收容腔322与所述压力传感器收容孔313连通。所述第一下表面32设有第一导流槽323，所述第一壳体3的内部设有连通所述第一导流槽323与所述收容腔322的斜孔324(请参图27所示)。请参图25所示，在本发明图示的实施方式中，所述第一导流槽323呈弯曲状。
请参图1所示，所述尿素接头331通过尿素连接管333与所述尿素箱201连通。为了更好的实现加热解冻功能，所述尾气后处理系统100还可以设有对所述尿素连接管333进行加热的加热装置334。请参图28及图54所示，在本发明图示的实施方式中，所述进液通道332水平延伸入所述第一壳体3的内部。当然，在其他实施方式中，所述进液通道332也可以呈一定的角度。
工作时，尿素溶液自所述尿素连接管333进入进液通道332，然后一部分尿素溶液自第二连接孔3126进入罩壳腔体21中。在所述罩壳腔体21内，一部分尿素溶液自第一定位孔3121渗入到第一轴套76中；一部分尿素溶液自渗液孔3123以及第二定位孔3122渗入到第二轴套77中。如此设置，可以对第一齿轮组件74以及第二齿轮组件75的上部进行浸润，提高转动的平稳性，减小磨损。
请参图29所示，所述第一壳体3与所述第二壳体4之间设有第一密封垫40，以确保两者之间能够实现较好的密封。另外，为了更好的定位，所述第一壳体3与所述第二壳体4之间还设有若干第二定位销318。
请参图31至图33所示，所述第一齿轮组件74包括第一齿轮轴741以及固定在第一齿轮轴741上的第一齿轮742；所述第二齿轮组件75包括第二齿轮轴751以及固定在第二齿轮轴751上的第二齿轮752，所述第一齿轮742与所述第二齿轮752相互啮合。请参图32所示，在本发明图示的实施方式中，所述第一齿轮742与所述第二齿轮752外啮合。另外，所述第一齿轮轴741为主动轴，所述第二齿轮轴751为从动轴，所述第一齿轮轴741高于所述第二齿轮轴751。所述第一齿轮轴741的上端穿过所述第一轴套76，并至少部分定位在所述磁性体72的轴孔721中。所述第二齿轮轴751的上端定位在所述第二轴套77中。当给电机线圈111通电后，其与磁性体72产生相互作用，电磁力会驱动第一齿轮轴741旋转，并由此带动第一齿轮742以及第二齿轮752旋转。
所述第二壳体4位于所述第一壳体3的下方且与第一壳体3相连接。请参图31至图37所示，所述第二壳体4包括第二上表面41、第二下表面42以及贯穿所述第二上表面41与第二下表面42且用以收容所述第一齿轮742以及第二齿轮752的齿轮槽43。所述齿轮槽43的一侧设有与所述第一连接孔3125连通的进液腔431，所述齿轮槽43的另一侧设有与所述出口通道16连通的出液腔432。具体地，所述出液腔432的上端通过所述斜孔324与所述收容腔322连通。所述第二上表面41设有供所述喷嘴组件19穿过的第一容纳孔411，所述第二下表面42设有定位所述喷嘴组件19的第二容纳孔421，所述第二容纳孔421大于所述第一容纳孔411，以形成阶梯孔。所述喷嘴组件19向上凸出所述第二上表面41并收容在所 述进液腔431中。如此设置，高压的尿素溶液能够被输送到尿素喷嘴12。另外，所述第二上表面41还设有与所述第二容纳孔421连通的第三穿线孔412，用以供喷嘴组件19的导电线124穿过。
请参图34所示，所述第二壳体4与所述第三壳体5之间设有第二密封垫50，以确保两者之间能够实现较好的密封。另外，为了更好的定位，所述第二壳体4与所述第三壳体5之间还设有若干第三定位销418。
请参图38及图30所示，所述喷嘴组件19包括尿素喷嘴12。在本发明图示的实施方式中，所述尿素喷嘴12包括喷嘴线圈121、与所述喷嘴线圈121相互作用的磁性部81、位于所述磁性部81下方的阀针部82、作用在所述磁性部81与所述阀针部82之间的弹簧83以及与所述阀针部82配合的阀座84(参图53所示)。所述喷嘴线圈121缠绕在所述磁性部81的外围。所述尿素喷嘴12还包括套接在所述喷嘴线圈121外围的套筒部122。所述弹簧83安装在所述磁性部81与所述阀针部82内。所述阀针部82设有锥形部821以及自所述锥形部821向下延伸的阀针822。请参图40及图41所示，所述阀座84包括焊接在所述第三壳体5上的旋流片85。所述旋流片85设有与所述阀针822相配合的喷射孔851以及与所述喷射孔851连通的若干旋流槽852。
请参图38至图51所示，所述第三壳体5位于所述第二壳体4的下方且与第二壳体4相连接。所述第三壳体5包括主体部51、自主体部51向下延伸的延伸部52以及自所述主体部51向外延伸的安装法兰53，其中所述主体部51设有第三上表面511以及第三侧面512。所述第三上表面511设有收容所述尿素喷嘴12的容纳腔54，所述容纳腔54向下延伸入所述延伸部52内。所述套筒部122的下部收容在所述容纳腔54中，所述套筒部122的上部收容在所述第二容纳孔421中。请参图38及图53所示，所述磁性部81上套接有第三密封圈812以与所述收容腔322的内壁实现密封。另外，所述容纳腔54中设有与尿素喷嘴12相配合的第四密封圈123，以与所述容纳腔54的内壁实现密封。
请参图53及图30所示，所述延伸部52设有集流腔521，所述阀针822延伸入所述集流腔521中。所述磁性部81设有与所述容纳腔515连通的第一连通孔811，所述阀针部82设有与所述第一连通孔811连通的第二连通孔823，所述锥形部821设有将所述第二连通孔823与所述集流腔521连通的第三连通孔824。所述旋流槽852与所述集流腔521连通。
所述第三壳体5设有贯穿所述第三上表面511的第三定位孔5111、贯穿所述第三上表面511的第四定位孔5112、以及连通所述第三定位孔5111与所述第四定位孔5112的第二卸荷槽5113。所述第三壳体5设有收容于所述第三定位孔5111中的第三轴套78以及收容于所述第四定位孔5112内的第四轴套79。所述第一齿轮轴741的下端定位在第三轴套78中，所述第二齿轮轴751的下端定位在所述第四轴套79中。
所述第三壳体5设有位于所述第三上表面511的第二导流槽5114以及第三导流槽5115，其中所述出液腔432的下端与所述第二导流槽5114连通，所述第三导流槽5115与所述进液 腔431连通。所述第二导流槽5114与所述第三导流槽5115位于所述第三定位孔5111、第四定位孔5112以及第二卸荷槽5113的两侧。请参图49及图50所示，所述第三壳体5的内部还设有连通所述第三定位孔5111与所述第三导流槽5115的第一连接槽5141以及连通所述第四定位孔5112与所述第三导流槽5115的第二连接槽5142。在本发明图示的实施方式中，所述第一连接槽5141与所述第二连接槽5142分别与所述第三定位孔5111与所述第四定位孔5112的底部相连。
另外，请参图48所示，所述第三壳体5还设有与所述第二导流槽5114连通的第一槽道5151、与所述第三导流槽5115连通的第二槽道5152以及连接在所述第一槽道5151与所述第二槽道5152之间的溢流元件收容槽5153。所述溢流元件收容槽5153向外贯穿所述第三侧面512，以收容所述溢流元件173。所述溢流元件173在本发明图示的实施方式中为安全阀，其目的是通过泄压的方式以确保所述集成装置1中高压通道中的压力处于安全值范围内。为了固定所述溢流元件173，所述第三壳体5设有凸出所述第三侧面512的收容部5121以及固定于所述收容部5121中以定位所述溢流元件173的塞子5122。工作时，当压力小于溢流元件173的设定值时，溢流元件173关闭，第二导流槽5114与第三导流槽5115隔断；而当压力大于溢流元件173的设定值时，溢流元件173打开，部分尿素溶液进入所述第三导流槽5115中，以实现泄压。同时，位于第三导流槽5115中的部分尿素溶液分别自所述第一连接槽5141与所述第二连接槽5142进入第三轴套78以及第四轴套79中，以实现润滑。
可以理解，在本发明图示的实施方式中，所述入口通道15包括进液通道332、连接孔3124以及进液腔431。因为所述入口通道15位于尿素泵11的上游，所以被称之为低压通道。所述出口通道16包括出液腔432、第一导流槽323、斜孔324、收容腔322、第二导流槽5114、第一槽道5151等。因为所述出口通道16位于尿素泵11的下游，所以被称之为高压通道。
所述第三壳体5设有用以冷却所述尿素喷嘴12的所述冷却组件。在本发明图示的实施方式中，所述冷却组件为水冷组件。位于所述第三壳体5内的冷却通道141包括贯穿所述第三侧面512的第一冷却通道516以及与所述第一冷却通道516间隔设置的第二冷却通道517。其中，所述第一冷却通道516与所述入口接头103连通，所述第二冷却通道517与所述出口接头104连通。所述延伸部52设有连通所述第一冷却通道516与所述第二冷却通道517的环形冷却槽522，所述环形冷却槽522位于所述集流腔521的外围。另外，所述第三壳体5还设有焊接在所述延伸部52上且位于所述阀座84外围的环形件55，以密封所述环形冷却槽522。
在本发明图示的实施方式中，所述安装法兰53与所述延伸部52一体机加工形成。当然，在其他实施方式中，所述安装法兰53也可以与所述延伸部52分开制作，然后焊接在一起。
可以理解，在本发明的其他实施方式中，例如集成装置应用于向发动机的排气中喷射燃料，以实现下游的柴油颗粒过滤器(DPF)的再生。在这种应用下，所述尿素泵11可以被替换为燃料泵，所述尿素喷嘴12可以被替换为燃料喷嘴，所述尿素溶液可以被替换为燃料。 这种变化对所属技术领域的技术人员是能够理解的，在此不再赘述。
为了便于理解本发明，尿素泵与燃料泵统称为泵，尿素喷嘴与燃料喷嘴统称为喷嘴，尿素溶液与燃料统称为流体介质。
相较于现有技术，本发明的集成装置1是一种集成化的设计，可以省去或缩短现有技术中用以连接泵与喷嘴的尿素管，也可以省去现有技术的泵供给单元中各种传感器与线束之间的插接件，也可以无需加热解冻装置，因此可靠性较高。本发明的集成装置1结构紧凑，体积小，便于各种车型的安装。另外，本发明的集成装置1中内部流体介质通道较短，压降小，泵与喷嘴之间的死容积小，效率较高。温度传感器171与压力传感器172离喷嘴近，喷射压力精度高。另外，通过分别对泵以及喷嘴进行独立控制，避免了喷嘴的动作是由泵的动作所驱动，从而提高了控制的精确度。由于喷嘴的喷射精度提高了，从而能够使喷入排气中的尿素的量与氮氧化合物达到合适的比例，降低了因过多喷射尿素而产生的结晶风险。本发明的集成装置1可以采用水冷，使残留在集成装置1中的尿素温度达不到结晶点，不易产生结晶。
以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，对本说明书的理解应该以所属技术领域的技术人员为基础，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (55)

  1. 一种泵与喷嘴的集成装置，其中所述泵用以向所述喷嘴泵送流体介质，所述喷嘴用以向发动机的排气中喷射该流体介质，其特征在于：所述集成装置包括壳体、至少部分安装于所述壳体内的泵组件以及至少部分安装于所述壳体内的喷嘴组件，其中所述壳体包括位于所述泵组件的上游且与所述泵组件连通的入口通道以及位于所述泵组件的下游且与所述泵组件连通的出口通道，所述出口通道与所述喷嘴组件连通；所述泵组件包括用以驱动泵的电机线圈、与所述电机线圈相互作用的磁性体以及相互啮合的第一齿轮组件与第二齿轮组件，其中所述第一齿轮组件包括第一齿轮轴以及固定在所述第一齿轮轴上的第一齿轮，所述第二齿轮组件包括第二齿轮轴以及固定在所述第二齿轮轴上的第二齿轮，所述第一齿轮与所述第二齿轮相互啮合，所述集成装置设有与所述第一齿轮轴相配合的第一轴套以及与所述第二齿轮轴相配合的第二轴套；所述喷嘴组件包括用以驱动喷嘴的喷嘴线圈，其中所述电机线圈与所述喷嘴线圈分别进行独立控制。
  2. 如权利要求1所述的集成装置，其特征在于：所述泵为尿素泵，所述喷嘴为尿素喷嘴，所述流体介质为尿素溶液。
  3. 如权利要求1所述的集成装置，其特征在于：所述泵为燃料泵，所述喷嘴为燃料喷嘴，所述流体介质为燃料。
  4. 如权利要求2所述的集成装置，其特征在于：所述集成装置包括与所述电机线圈以及所述喷嘴线圈连接的控制器，所述控制器分别对所述尿素泵以及所述尿素喷嘴进行独立控制。
  5. 如权利要求2所述的集成装置，其特征在于：所述集成装置包括与所述出口通道连通的压力传感器以及连接在所述出口通道与所述入口通道之间的溢流元件。
  6. 如权利要求2所述的集成装置，其特征在于：所述集成装置包括安装在所述壳体内的温度传感器。
  7. 如权利要求2所述的集成装置，其特征在于：所述泵组件包括收容所述磁性体的金属罩，所述电机线圈套接在所述金属罩的外围；所述第一齿轮轴为主动轴，所述第二齿轮轴为从动轴，所述第一齿轮轴高于所述第二齿轮轴，所述磁性体设有轴孔，所述第一齿轮轴至少部分固定在所述轴孔内。
  8. 如权利要求7所述的集成装置，其特征在于：所述泵组件还包括收容在所述金属罩内且位于所述磁性体下方的弹性体，所述弹性体能够被压缩以吸收因尿素结冰所产生的膨胀体积。
  9. 如权利要求1所述的集成装置，其特征在于：所述壳体设有收容所述第一齿轮与所述第二齿轮的齿轮槽，所述第一齿轮与所述第二齿轮外啮合，所述齿轮槽的一侧设有与所述入口通道连通的进液腔，所述齿轮槽的另一侧设有与所述出口通道连通的出液腔。
  10. 如权利要求1所述的集成装置，其特征在于：所述喷嘴组件包括与所述喷嘴线圈相互作用的磁性部、位于所述磁性部下方的阀针部、作用在所述磁性部与所述阀针部之间的弹簧以及与所述阀针部配合的阀座。
  11. 如权利要求10所述的集成装置，其特征在于：所述喷嘴线圈位于所述磁性部的外围，所述阀针部设有阀针，所述阀座设有与所述阀针相配合的喷射孔。
  12. 如权利要求11所述的集成装置，其特征在于：所述阀座包括焊接在所述壳体上的旋流片，所述喷射孔设置在所述旋流片上，并且所述旋流片还设有与所述喷射孔连通的若干旋流槽。
  13. 如权利要求2所述的集成装置，其特征在于：所述集成装置设有用以冷却所述尿素喷嘴的冷却组件，所述冷却组件通过冷却介质对所述尿素喷嘴进行冷却。
  14. 如权利要求4所述的集成装置，其特征在于：所述壳体设有位于顶部的罩壳，所述罩壳设有罩壳腔体；所述控制器设有位于所述罩壳腔体内的控制板，所述电机线圈与所述喷嘴线圈均与所述控制板电性连接。
  15. 如权利要求14所述的集成装置，其特征在于：所述罩壳设有与所述罩壳腔体连通的通孔以及固定在所述通孔中的防水透气盖；所述控制板上焊接有排线插头，所述排线插头暴露在所述罩壳外。
  16. 如权利要求14所述的集成装置，其特征在于：所述壳体设有第一壳体以及夹持在所述罩壳与所述第一壳体之间的连接板组件，所述连接板组件包括板片部以及固定在所述板片部上且向上凸起的金属罩，所述磁性体收容在所述金属罩内，所述电机线圈套接在所述金属罩的外围；所述板片部设有固定在其上的若干安装筒，所述安装筒设有内螺纹，所述控制板设有对应于所述安装筒的若干开孔，若干螺钉在穿过所述开孔之后被拧紧在所述内螺纹中以对所述控制板进行固定。
  17. 如权利要求16所述的集成装置，其特征在于：所述电机线圈设有支架以及缠绕在所述支架上的线圈，所述支架设有收容所述金属罩的孔以及向下延伸的若干安装柱。
  18. 如权利要求16所述的集成装置，其特征在于：所述第一壳体设有与尿素接头连接的进液通道，所述第一壳体包括第一上表面、第一下表面以及第一侧面，其中所述第一上表面设有第一环形槽、被所述第一环形槽包围的岛部以及收容在所述第一环形槽中的第一密封圈，所述第一密封圈位于所述金属罩的下方，所述板片部向下抵压所述第一密封圈；所述岛部设有贯穿所述第一上表面与所述第一下表面的第一定位孔以及贯穿所述第一下表面的第二定位孔，所述第一轴套收容在所述第一定位孔中，所述第二轴套收容在所述第二定位孔中。
  19. 如权利要求18所述的集成装置，其特征在于：所述第一下表面设有连通所述第一定位孔与所述第二定位孔的第一泄荷槽。
  20. 如权利要求18所述的集成装置，其特征在于：所述岛部还包括贯穿所述第一上表面且与所述第二定位孔连通的渗液孔以及贯穿所述第一上表面与所述第一下表面且与所述 入口通道连通的连接孔。
  21. 如权利要求18所述的集成装置，其特征在于：所述第一上表面还设有位于所述岛部的旁侧且用以收容压力传感器的压力传感器收容孔；所述第一壳体还设有向下贯穿所述第一下表面的收容腔，所述收容腔用以至少部分收容所述喷嘴组件，所述收容腔与所述压力传感器收容孔连通；所述第一下表面设有与所述出口通道连通的第一导流槽，所述第一壳体的内部设有连通所述第一导流槽与所述收容腔的斜孔。
  22. 如权利要求20所述的集成装置，其特征在于：所述壳体包括位于所述第一壳体的下方且与所述第一壳体连接的第二壳体，所述第一壳体与所述第二壳体之间设有第一密封垫，所述第二壳体包括第二上表面、第二下表面以及贯穿所述第二上表面与第二下表面且用以收容所述第一齿轮以及第二齿轮的齿轮槽，所述齿轮槽的一侧设有与所述连接孔连通的进液腔，所述齿轮槽的另一侧设有与所述第一导流槽连通的出液腔。
  23. 如权利要求22所述的集成装置，其特征在于：所述壳体包括位于所述第二壳体的下方且与所述第二壳体连接的第三壳体，所述第二壳体与所述第三壳体之间设有第二密封垫，所述第三壳体包括主体部以及自所述主体部向下延伸的延伸部，其中所述主体部设有第三上表面，所述第三上表面设有收容所述喷嘴组件的容纳腔，所述容纳腔向下延伸入所述延伸部内。
  24. 如权利要求23所述的集成装置，其特征在于：所述第三壳体设有贯穿所述第三上表面的第三定位孔、贯穿所述第三上表面的第四定位孔以及连通所述第三定位孔与所述第四定位孔的第二卸荷槽，所述集成装置设有收容于所述第三定位孔中的第三轴套以及收容于所述第四定位孔中的第四轴套，所述第一齿轮轴的上端定位在所述第一轴套中，所述第一齿轮轴的下端定位在所述第三轴套中，所述第二齿轮轴的上端定位在所述第二轴套中，所述第二齿轮轴的下端定位在所述第四轴套中。
  25. 如权利要求24所述的集成装置，其特征在于：所述第三壳体设有位于所述第三上表面的第二导流槽以及第三导流槽，所述第二导流槽与所述出液腔的下端连通，所述第三导流槽与所述进液腔连通。
  26. 如权利要求25所述的集成装置，其特征在于：所述第三壳体还设有连通所述第三定位孔与所述第三导流槽的第一连接槽，以及连通所述第四定位孔与所述第二卸荷槽的第二连接槽。
  27. 如权利要求26所述的集成装置，其特征在于：所述第三壳体设有与所述第二导流槽连通的第一槽道、与所述第三导流槽连通的第二槽道以及连接在所述第一槽道与所述第二槽道之间的溢流元件收容槽，所述集成装置设有安装于所述溢流元件收容槽内的溢流元件；当出液腔的压力高于设定值时，所述溢流元件打开以将部分尿素溶液返回到所述入口通道内。
  28. 如权利要求27所述的集成装置，其特征在于：所述第三壳体设有第三侧面，所述溢流元件收容槽向外贯穿所述第三侧面，所述溢流元件为泄压阀，所述第三壳体设有凸出所 述第三侧面的收容部以及固定在所述收容部中以定位所述溢流元件的塞子。
  29. 如权利要求23所述的集成装置，其特征在于：所述喷嘴组件包括与所述喷嘴线圈相互作用的磁性部、与所述磁性部连接的阀针部以及作用于所述阀针部的弹簧；所述延伸部设有与所述容纳腔连通的集流腔，其中所述磁性部至少部分收容于所述容纳腔中，所述磁性部凸出所述第二上表面的部分收容于所述收容腔中。
  30. 如权利要求29所述的集成装置，其特征在于：所述弹簧安装在所述磁性部与所述阀针部内，所述阀针部设有锥形部以及自所述锥形部向下延伸的阀针，所述阀针延伸入所述集流腔中，所述磁性部设有与所述容纳腔连通的第一连通孔，所述阀针部设有与所述第一连通孔连通的第二连通孔，所述锥形部设有将所述第二连通孔与所述集流腔连通的第三连通孔。
  31. 如权利要求30所述的集成装置，其特征在于：所述喷嘴组件包括所述阀针相配合的阀座，所述阀座包括焊接在所述延伸部上的旋流片，所述旋流片设有与所述阀针相配合的喷射孔以及与所述喷射孔连通的若干旋流槽，所述旋流槽与所述集流腔连通。
  32. 如权利要求31所述的集成装置，其特征在于：所述第三壳体设有第一冷却通道以及与所述第一冷却通道间隔设置的第二冷却通道，所述延伸部设有连通所述第一冷却通道与所述第二冷却通道的环形冷却槽，所述第一冷却通道与入口接头连接用以供发动机冷却液注入，所述第二冷却通道与出口接头连接用以供发动机冷却液流出。
  33. 如权利要求32所述的集成装置，其特征在于：所述第三壳体设有焊接在所述延伸部上的环形件以密封所述环形冷却槽。
  34. 一种尿素泵与尿素喷嘴的集成装置，其中所述尿素泵用以向所述尿素喷嘴泵送尿素溶液，所述尿素喷嘴用以向发动机的排气中喷射尿素溶液，其特征在于：所述集成装置包括壳体、至少部分安装于所述壳体内的泵组件以及至少部分安装于所述壳体内的喷嘴组件，其中所述壳体包括位于所述泵组件的上游且与所述泵组件连通的入口通道以及位于所述泵组件的下游且与所述泵组件连通的出口通道，所述出口通道与所述喷嘴组件连通；所述集成装置包括连接在所述出口通道与所述入口通道之间的溢流元件，所述泵组件包括电机线圈、与所述电机线圈相互作用的磁性体以及相互啮合的第一齿轮组件与第二齿轮组件，其中所述第一齿轮组件包括第一齿轮轴以及固定在所述第一齿轮轴上的第一齿轮，所述第二齿轮组件包括第二齿轮轴以及固定在所述第二齿轮轴上的第二齿轮，所述第一齿轮与所述第二齿轮相互啮合，所述集成装置设有与所述第一齿轮轴相配合的第一轴套以及与所述第二齿轮轴相配合的第二轴套；所述喷嘴组件包括喷嘴线圈、与所述喷嘴线圈相互作用的磁性部、位于所述磁性部下方的阀针部、施力于所述阀针部的弹簧以及与所述阀针部配合的阀座。
  35. 如权利要求34所述的集成装置，其特征在于：所述集成装置包括与所述电机线圈以及所述喷嘴线圈连接的控制器，所述控制器分别对所述尿素泵以及所述尿素喷嘴进行独立控制。
  36. 如权利要求34所述的集成装置，其特征在于：所述壳体设有收容所述第一齿轮与 所述第二齿轮的齿轮槽，所述第一齿轮与所述第二齿轮外啮合，所述齿轮槽的一侧设有与所述入口通道连通的进液腔，所述齿轮槽的另一侧设有与所述出口通道连通的出液腔。
  37. 如权利要求36所述的集成装置，其特征在于：所述壳体包括第一壳体，所述第一壳体包括第一上表面以及第一下表面，其中所述第一上表面设有第一环形槽、收容于所述第一环形槽内的第一密封圈以及被所述第一环形槽包围的岛部；所述第一壳体设有与尿素接头连接的进液通道，所述岛部设有贯穿所述第一上表面与所述第一下表面的第一定位孔以及贯穿所述第一下表面的第二定位孔，所述第一轴套收容在所述第一定位孔中，所述第二轴套收容在所述第二定位孔中。
  38. 如权利要求37所述的集成装置，其特征在于：所述第一下表面设有连通所述第一定位孔与所述第二定位孔的第一泄荷槽。
  39. 如权利要求38所述的集成装置，其特征在于：所述泵组件包括收容所述磁性体的金属罩，所述第一密封圈位于所述金属罩的下方；所述岛部还包括贯穿所述第一上表面且与所述第二定位孔连通的渗液孔以及贯穿所述第一上表面与所述第一下表面且与所述入口通道连通的连接孔。
  40. 如权利要求39所述的集成装置，其特征在于：所述第一上表面还设有位于所述岛部的旁侧且用以收容压力传感器的压力传感器收容孔；所述第一壳体还设有向下贯穿所述第一下表面的收容腔，所述收容腔用以至少部分收容所述喷嘴组件，所述收容腔与所述压力传感器收容孔连通；所述第一下表面设有与所述出口通道连通的第一导流槽，所述第一壳体的内部设有连通所述第一导流槽与所述收容腔的斜孔。
  41. 如权利要求39所述的集成装置，其特征在于：所述壳体包括位于所述第一壳体的下方且与所述第一壳体连接的第二壳体，所述第一壳体与所述第二壳体之间设有第一密封垫，所述第二壳体包括第二上表面以及第二下表面，所述齿轮槽贯穿所述第二上表面以及所述第二下表面。
  42. 如权利要求41所述的集成装置，其特征在于：所述壳体包括位于所述第二壳体的下方且与所述第二壳体连接的第三壳体，所述第二壳体与所述第三壳体之间设有第二密封垫，所述第三壳体包括主体部以及自所述主体部向下延伸的延伸部，其中所述主体部设有第三上表面，所述第三上表面设有收容所述喷嘴组件的容纳腔，所述容纳腔向下延伸入所述延伸部内。
  43. 如权利要求42所述的集成装置，其特征在于：所述第三壳体设有贯穿所述第三上表面的第三定位孔、贯穿所述第三上表面的第四定位孔以及连通所述第三定位孔与所述第四定位孔的第二卸荷槽，所述集成装置设有收容于所述第三定位孔中的第三轴套以及收容于所述第四定位孔中的第四轴套，所述第一齿轮轴的上端定位在所述第一轴套中，所述第一齿轮轴的下端定位在所述第三轴套中，所述第二齿轮轴的上端定位在所述第二轴套中，所述第二齿轮轴的下端定位在所述第四轴套中。
  44. 如权利要求43所述的集成装置，其特征在于：所述第三壳体设有位于所述第三上表面的第二导流槽以及第三导流槽，所述第二导流槽与所述出液腔的下端连通，所述第三导流槽与所述进液腔连通。
  45. 如权利要求44所述的集成装置，其特征在于：所述第三壳体还设有连通所述第三定位孔与所述第三导流槽的第一连接槽，以及连通所述第四定位孔与所述第二卸荷槽的第二连接槽。
  46. 如权利要求45所述的集成装置，其特征在于：所述第三壳体设有与所述第二导流槽连通的第一槽道、与所述第三导流槽连通的第二槽道以及连接在所述第一槽道与所述第二槽道之间的溢流元件收容槽，所述溢流元件安装在所述溢流元件收容槽中；当出液腔的压力高于设定值时，所述溢流元件打开以将部分尿素溶液返回到所述入口通道内。
  47. 如权利要求46所述的集成装置，其特征在于：所述第三壳体设有第三侧面，所述溢流元件收容槽向外贯穿所述第三侧面，所述溢流元件为泄压阀，所述第三壳体设有凸出所述第三侧面的收容部以及固定在所述收容部中以定位所述溢流元件的塞子。
  48. 如权利要求42所述的集成装置，其特征在于：所述延伸部设有与所述容纳腔连通的集流腔，其中所述磁性部至少部分收容于所述容纳腔中，所述磁性部凸出所述第二上表面的部分收容于所述收容腔中。
  49. 如权利要求48所述的集成装置，其特征在于：所述弹簧安装在所述磁性部与所述阀针部内，所述阀针部设有锥形部以及自所述锥形部向下延伸的阀针，所述阀针延伸入所述集流腔中，所述磁性部设有与所述容纳腔连通的第一连通孔，所述阀针部设有与所述第一连通孔连通的第二连通孔，所述锥形部设有将所述第二连通孔与所述集流腔连通的第三连通孔。
  50. 如权利要求49所述的集成装置，其特征在于：所述喷嘴组件包括所述阀针相配合的阀座，所述阀座包括焊接在所述延伸部上的旋流片，所述旋流片设有与所述阀针相配合的喷射孔以及与所述喷射孔连通的若干旋流槽，所述旋流槽与所述集流腔连通。
  51. 如权利要求50所述的集成装置，其特征在于：所述第三壳体设有第一冷却通道以及与所述第一冷却通道间隔设置的第二冷却通道，所述延伸部设有连通所述第一冷却通道与所述第二冷却通道的环形冷却槽，所述第一冷却通道与入口接头连接用以供发动机冷却液注入，所述第二冷却通道与出口接头连接用以供发动机冷却液流出。
  52. 如权利要求51所述的集成装置，其特征在于：所述第三壳体设有焊接在所述延伸部上的环形件以密封所述环形冷却槽。
  53. 一种尾气后处理系统，包括尾气后处理的喷射系统以及尾气后处理的封装系统，其中所述喷射系统包括如权利要求1至52项中任意一项所述的集成装置，所述封装系统包括位于所述集成装置下游的载体。
  54. 如权利要求53所述的尾气后处理系统，其特征在于：所述载体包括选择性催化还原，所述封装系统还包括位于所述集成装置与所述载体之间的至少一个混合器。
  55. 一种集成装置的控制方法，其特征在于：所述集成装置为权利要求1至52项中任意一项所述的集成装置，所述控制方法包括：
    驱动所述泵运转，通过所述入口通道将所述流体介质吸入所述泵；
    经过所述泵的加压之后，通过所述出口通道将该流体介质输送至所述喷嘴；
    当达到喷射条件时，给所述喷嘴线圈通电，至少部分打开所述喷嘴以将该流体介质喷入所述发动机的排气中；其中：
    所述电机线圈与所述喷嘴线圈分别进行独立控制。
PCT/CN2016/107725 2015-12-31 2016-11-29 集成装置、尾气后处理系统以及控制方法 WO2017114060A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201511029707 2015-12-31
CN201511029707.6 2015-12-31

Publications (1)

Publication Number Publication Date
WO2017114060A1 true WO2017114060A1 (zh) 2017-07-06

Family

ID=59225569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/107725 WO2017114060A1 (zh) 2015-12-31 2016-11-29 集成装置、尾气后处理系统以及控制方法

Country Status (2)

Country Link
CN (2) CN106930808A (zh)
WO (1) WO2017114060A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106930808A (zh) * 2015-12-31 2017-07-07 天纳克（苏州）排放系统有限公司 集成装置、尾气后处理系统以及控制方法
CN108625945A (zh) * 2017-03-20 2018-10-09 天纳克（苏州）排放系统有限公司 尾气后处理系统
WO2018171217A1 (zh) * 2017-03-20 2018-09-27 天纳克（苏州）排放系统有限公司 集成装置、尾气后处理系统以及控制方法
CN207598325U (zh) * 2017-03-20 2018-07-10 天纳克（苏州）排放系统有限公司 尾气后处理系统
WO2018171219A1 (zh) * 2017-03-20 2018-09-27 天纳克（苏州）排放系统有限公司 集成装置、尾气后处理系统以及控制方法
CN109236425A (zh) * 2017-07-11 2019-01-18 天纳克（苏州）排放系统有限公司 喷嘴

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2126301B1 (de) * 2006-12-28 2010-09-15 Robert Bosch GmbH Fördermodul für selektive katalytische reduktion
CN202228159U (zh) * 2011-09-13 2012-05-23 浙江邦得利汽车环保技术有限公司 一种柴油机scr尿素喷射装置
CN102588052A (zh) * 2012-03-08 2012-07-18 湖北天雄科技有限公司 一种scr喷射系统
CN102803671A (zh) * 2009-06-11 2012-11-28 斯塔纳迪恩公司 用于废气后处理的集成泵和喷射器
CN103201473A (zh) * 2011-05-16 2013-07-10 苏州派格丽减排系统有限公司 集成式scr还原剂储存装置
US20140065022A1 (en) * 2011-03-21 2014-03-06 Albonair Gmbh Exhaust Gas After Treatment System
CN105156182A (zh) * 2015-09-17 2015-12-16 苏州亿利亚科汽车系统有限公司 选择性催化还原喷射系统及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008012780B4 (de) * 2008-03-05 2012-10-04 Hydraulik-Ring Gmbh Abgasnachbehandlungseinrichtung
CN106930808A (zh) * 2015-12-31 2017-07-07 天纳克（苏州）排放系统有限公司 集成装置、尾气后处理系统以及控制方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2126301B1 (de) * 2006-12-28 2010-09-15 Robert Bosch GmbH Fördermodul für selektive katalytische reduktion
CN102803671A (zh) * 2009-06-11 2012-11-28 斯塔纳迪恩公司 用于废气后处理的集成泵和喷射器
US20140065022A1 (en) * 2011-03-21 2014-03-06 Albonair Gmbh Exhaust Gas After Treatment System
CN103201473A (zh) * 2011-05-16 2013-07-10 苏州派格丽减排系统有限公司 集成式scr还原剂储存装置
CN202228159U (zh) * 2011-09-13 2012-05-23 浙江邦得利汽车环保技术有限公司 一种柴油机scr尿素喷射装置
CN102588052A (zh) * 2012-03-08 2012-07-18 湖北天雄科技有限公司 一种scr喷射系统
CN105156182A (zh) * 2015-09-17 2015-12-16 苏州亿利亚科汽车系统有限公司 选择性催化还原喷射系统及方法

Also Published As

Publication number Publication date
CN106930808A (zh) 2017-07-07
CN206360757U (zh) 2017-07-28

Similar Documents

Publication Publication Date Title
WO2017114060A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2017177882A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2017092651A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2017211120A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018133512A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171214A1 (zh) 尾气后处理系统
WO2017211118A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018145496A1 (zh) 加热过滤组件以及后处理系统组件
WO2018171213A1 (zh) 尾气后处理系统
WO2018188379A1 (zh) 对尾气后处理系统分段建压的方法
WO2017211121A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2017211119A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171215A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171218A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171219A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2017211117A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171220A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2017211233A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171217A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171216A1 (zh) 集成装置、尾气后处理系统以及控制方法
WO2018171212A1 (zh) 尾气后处理系统
WO2018145497A1 (zh) 尿素加热过滤系统以及后处理系统组件
CN204239028U (zh) 用于scr尾气后处理系统的尿素泵
WO2023239748A1 (en) Doser assembly with sensor assembly
GB2602209A (en) Dosing module for use in aftertreatment systems for internal combustion engines

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16880850

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16880850

Country of ref document: EP

Kind code of ref document: A1