CN206522209U - A kind of four-cylinder diesel engine of low emission - Google Patents
A kind of four-cylinder diesel engine of low emission Download PDFInfo
- Publication number
- CN206522209U CN206522209U CN201720115009.6U CN201720115009U CN206522209U CN 206522209 U CN206522209 U CN 206522209U CN 201720115009 U CN201720115009 U CN 201720115009U CN 206522209 U CN206522209 U CN 206522209U
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- Prior art keywords
- cooler
- combined type
- exhaust gas
- inlet pipe
- fuel injection
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- 239000000446 fuel Substances 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 5
- 239000000295 fuel oil Substances 0.000 claims abstract description 5
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 31
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 8
- 235000009566 rice Nutrition 0.000 abstract description 8
- 239000002912 waste gas Substances 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- -1 signal panels Substances 0.000 abstract description 2
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 7
- 108010028771 Complement C6 Proteins 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 210000000720 eyelash Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
A kind of four-cylinder diesel engine of low emission, including cylinder block, cylinder head, piston crank mechanism, crankshaft-flywheel assembly, air inlet pipe, blast pipe, exhaust-driven turbo-charger exhaust-gas turbo charger, outside cooling egr system, gear chamber, water pump complement, combined type electronically controlled unit pump, speed probe, signal panels, oil sump etc..The combined type electronically controlled unit pump of high-pressure injection, can accurately control the oil injection time and fuel delivery of each operating point, and the higher injection pressure of offer and fuel-oil atmozation according to engine speed, water temperature, suction press and load.Pass through outside cooling egr system simultaneously, the waste gas of part discharge is introduced into cooler for recycled exhaust gas through exterior line, significantly reduce the discharge of Diesel NOx, and according to the rotating speed and load of engine, EGR rate is accurately controlled by ECU, amount of exhaust gas recirculation is reached optimum state in each operating point, so as to lower the pollutant in emission, complete machine emission level is reached non-rice habitats Europe III discharge standards.
Description
Technical field
The utility model belongs to field of internal combustion engine, is related to a kind of four-cylinder diesel engine of low emission.
Background technology
With the formal implementation of the Abgasgesetz of non-rice habitats state of China three, the diesel engine now produced is needed from non-rice habitats state-two liter
Level arrives state three.The non-rice habitats discharge standard of European Union has reached the stage of Europe IV, and Chinese non-rice habitats Abgasgesetz is progressively to Europe
Alliance is close, therefore, and diesel engine must is fulfilled for the Abgasgesetz of requirements at the higher level.The main flow control system of non-rice habitats state three is met at present
For high-pressure common rail and electronically controlled unit pump, but high-pressure common rail technical sophistication, technological level requires higher, key components and parts be required for into
Mouthful, the construction cycle is long.Therefore it provides a kind of four-cylinder diesel engine for the low emission for meeting the Abgasgesetz of non-rice habitats state three is compeled in eyebrow
Eyelash.
Utility model content
The purpose of this utility model is to overcome the above not enough, adds outside cooling EGR systems using combined type electronically controlled unit pump
System（Waste gas is recycled）Technology path there is provided a kind of four-cylinder diesel engine of low emission.
The technical solution of the utility model is：A kind of four-cylinder diesel engine of low emission, including cylinder block, cylinder head, piston
Linkage, thermostat body, crankshaft-flywheel assembly, air inlet pipe, blast pipe, exhaust-driven turbo-charger exhaust-gas turbo charger, outside cooling egr system,
Gear chamber, water pump complement, combined type EUP Fuel Injection System, speed probe, signal panels, oil sump；Cylinder head is installed
In the top surface of cylinder block, thermostat body is arranged on the front end of cylinder head, and piston crank mechanism and crankshaft-flywheel assembly are arranged on gas
The inside of cylinder body, air inlet pipe and blast pipe are separately mounted to the arranged on left and right sides of cylinder head, and exhaust-driven turbo-charger exhaust-gas turbo charger is arranged on exhaust
Above pipe, outside cooling egr system is arranged on above air inlet pipe, and gear chamber and water pump complement are arranged on before cylinder block
End, combined type EUP Fuel Injection System is arranged on the rear end face of gear chamber, and speed probe is arranged on gear chamber front end, letter
Dialer is arranged on the front end of crankshaft-flywheel assembly, and oil sump is arranged on the lower end of cylinder block.
Outside cooling egr system includes：EGR air inlet pipe, EGR valve, cooler for recycled exhaust gas, inlet pipe connection, cooler for recycled exhaust gas enters
Glue pipe, cooler for recycled exhaust gas water outlet sebific duct.The two ends of EGR air inlet pipe are connected with blast pipe and cooler for recycled exhaust gas respectively；EGR valve is installed
In the front end of cooler for recycled exhaust gas, the two ends of inlet pipe connection are connected with EGR valve and air inlet pipe respectively, cooler for recycled exhaust gas water inlet sebific duct
It is connected with cooler for recycled exhaust gas water outlet sebific duct with cooler for recycled exhaust gas.
Combined type EUP Fuel Injection System includes：Combined type electronically controlled unit pump, locking nut, fuel injection pump gear, spray
Oil pump gear wheel hub, adpting flange, crankshaft rotational speed sensor, cooling-water temperature sensor, high-speed electromagnetic valve, fuel oil temperature pressure sensing
Device, injection pump cam shaft speed transducer, wire harness, ECU, high-pressure oil pipe, fuel injector and gas pedal；Combined type is automatically controlled
Monoblock pump is arranged on engine side；Fuel injection pump gear wheel hub is arranged on before the drive cam shaft of combined type electronically controlled unit pump
End, is locked, four bolts fix fuel injection pump gear with fuel injection pump gear wheel hub, before combined type electronically controlled unit pump by locking nut
The adpting flange at end is arranged on the rear end face of gear chamber.
The utility model can reach following good effect after using above-mentioned technical proposal：In four cylinder turbocharged and intercooled diesel engines
Upper use combined type electronically controlled unit pump and outside cooling egr system, according to the rotating speed of engine, water temperature, suction press and negative
Lotus, the oil injection time and fuel delivery of each operating point are accurately controlled by ECU；And by outside cooling EGR, by one
The waste gas of part discharge introduces cooler for recycled exhaust gas through exterior line, and gas handling system is entered after cooling, reduces intake air temperature, effectively
Reduce the discharge of Diesel NOx.And according to the rotating speed and load of engine, ECU accurately controls EGR rate, waste gas is followed again
Circular rector reaches optimum state in each operating point, so as to lower the pollutant in emission, reaches complete machine emission level non-
Road Europe III discharge standards.The mechanical pump that combined type electronically controlled unit pump can be used with existing production is exchanged, and the variation being related to is less,
Compatibility with existing product is high, easily realizes within a short period of time.
Brief description of the drawings
Fig. 1 is a kind of left view structural representation of the four-cylinder diesel engine of low emission of the utility model；
Fig. 2 is a kind of main structure diagram of the four-cylinder diesel engine of low emission of the utility model；
Fig. 3 is a kind of right side structural representation of the four-cylinder diesel engine of low emission of the utility model；
Fig. 4 is a kind of overlooking the structure diagram of the four-cylinder diesel engine of low emission of the utility model；
Fig. 5 shows for a kind of combined type EUP Fuel Injection System structure of four-cylinder diesel engine of low emission of the utility model
It is intended to；
Fig. 6 illustrates for a kind of combined type electronically controlled unit pump mounting structure of four-cylinder diesel engine of low emission of the utility model
Figure.
Fig. 7 illustrates for a kind of combined type electronically controlled unit pump installation site of four-cylinder diesel engine of low emission of the utility model
Figure.
Embodiment
As shown in Fig. 1~7：A kind of four-cylinder diesel engine of low emission, including cylinder block 12, cylinder head 11, piston rod machine
Structure 14, crankshaft-flywheel assembly 13, thermostat body 15, air inlet pipe 2, blast pipe 10, exhaust-driven turbo-charger exhaust-gas turbo charger 9, outside cooling EGR systems
System 1, gear chamber 4, water pump complement 6, combined type EUP Fuel Injection System 3, speed probe 7, signal panels 8, oil sump 5；
Cylinder head 11 is arranged on the top surface of cylinder block 12, and thermostat body 15 is arranged on the front end of cylinder head 11, the He of piston crank mechanism 14
Crankshaft-flywheel assembly 13 is arranged on the inside of cylinder block 12, and air inlet pipe 2 and blast pipe 10 are separately mounted to the left and right of cylinder head 11
Both sides, exhaust-driven turbo-charger exhaust-gas turbo charger 9 is arranged on above blast pipe 10, and outside cooling egr system 1 is arranged on above air inlet pipe 2,
Gear chamber 4 and water pump complement 6 are arranged on the front end of cylinder block 12, and combined type EUP Fuel Injection System 3 is arranged on gear chamber 4
Rear end face, speed probe 7 be arranged on the front end of gear chamber 4, signal panels 8 be arranged on crankshaft-flywheel assembly 13 front end, oily bottom
Shell 5 is arranged on the lower end of cylinder block 12.
Outside cooling egr system 1 includes：EGR air inlet pipe 21, EGR valve 16, cooler for recycled exhaust gas 20, inlet pipe connection 17, EGR
Cooler water inlet sebific duct 19, cooler for recycled exhaust gas water outlet sebific duct 18.Waste gas arrives cooler for recycled exhaust gas 20 by EGR air inlet pipe 21, cold by EGR
But device 20 arrives EGR valve 16, by EGR valve 16 to inlet pipe connection 17, by inlet pipe connection 17 to air inlet pipe 2, eventually enters into cylinder
It is interior.Fetched water from water pump high pressure chest, sebific duct 19 is intake into cooler for recycled exhaust gas 20 by cooler for recycled exhaust gas, cooler for recycled exhaust gas is cooled down
20, thermostat body 15 is finally returned to by cooler for recycled exhaust gas water outlet sebific duct 18.
To make the product exhaust emissions described by the utility model reach non-rice habitats Eu III standard, the oil supply system of product is adopted
With combined type EUP Fuel Injection System 3, including：Combined type electronically controlled unit pump 35, locking nut 31, fuel injection pump gear 32,
Fuel injection pump gear wheel hub 33, adpting flange 34, crankshaft rotational speed sensor 7, cooling-water temperature sensor 24, high-speed electromagnetic valve 26, fuel oil temperature
Spend pressure sensor 27, injection pump cam shaft speed transducer 28, wire harness 29, ECU 30, high-pressure oil pipe 23, fuel injector 25
With gas pedal 22.Combined type electronically controlled unit pump 35 is arranged on engine side, the driving cam of combined type electronically controlled unit pump 35
Shaft centre line is respectively with respect to the coordinate position of crankshaft center：The mm of horizontal direction C=196. ± 3, vertical direction D=173.6 ± 3
Mm, established angle γ=20 ° ± 5 °；Fuel injection pump gear wheel hub 33 is arranged on before the drive cam shaft of combined type electronically controlled unit pump 35
End, is locked, four bolts fix fuel injection pump gear 32 with fuel injection pump gear wheel hub 33, the automatically controlled list of combined type by locking nut 31
The adpting flange 34 of the front end of body pump 35 is arranged on the rear end face of gear chamber 4.When engine is in a cylinder compression top center, oil spout
The gear train of pump gear 32 and engine is installed by mark.
In diesel engine running, the controlled device of combined type electronically controlled unit pump high-pressure injection system is high-speed electromagnetic valve
26, its start-up time determines fuel supply advance angle, opens duration decision fuel delivery per cycle, fuel supply advance angle and fuel delivery per cycle
Good combination affect the quality of combustion mixture burning quality, it is final determine exhaust emissions number.Speed of crankshaft is passed
The various sensors such as sensor 7, cooling-water temperature sensor 24, fuel oil temperature pressure sensor 27, injection pump cam shaft speed transducer 28
Diesel engine operating condition is monitored in real time, and monitoring result is fed back to by ECU 30, ECU by wire harness 29
30 search corresponding control figure, output pulse width and timing signal according to control strategy in modules, and adjustment is electric at a high speed in real time
The start-up time of magnet valve 26 and unlatching duration, by gas pedal 22, high-pressure oil pipe 23 and fuel injector 25, realize to bavin
The control of oil machine distributive value and injection timing, to realize good burning, obtains preferable engine performance.By part discharge
Waste gas through exterior line introduce gas handling system, into gas handling system before waste gas cooled down by cooler, that is, use
The outside cooling waste gas recycling of band, can reduce the NOx in intake air temperature, reduction fuel consumption and tail gas, so as to reach non-
Road Eu III standard.
Claims (3)
1. a kind of four-cylinder diesel engine of low emission, including cylinder block（12）, cylinder head（11）, piston crank mechanism（14）, section temperature
Body（15）, crankshaft-flywheel assembly（13）, air inlet pipe（2）, blast pipe（10）, exhaust-driven turbo-charger exhaust-gas turbo charger（9）, outside cooling EGR
System（1）, gear chamber（4）, water pump complement（6）, combined type EUP Fuel Injection System（3）, speed probe（7）, signal
Disk（8）, oil sump（5）；It is characterized in that：Cylinder head（11）Installed in cylinder block（12）Top surface, thermostat body（15）Install
In cylinder head（11）Front end, piston crank mechanism（14）With crankshaft-flywheel assembly（13）Installed in cylinder block（12）Inside,
Air inlet pipe（2）And blast pipe（10）It is separately mounted to cylinder head（11）Arranged on left and right sides, exhaust-driven turbo-charger exhaust-gas turbo charger（9）It is arranged on
Blast pipe（10）Above, outside cooling egr system（1）Installed in air inlet pipe（2）Above, gear chamber（4）And water pump complement
（6）Installed in cylinder block（12）Front end, combined type EUP Fuel Injection System（3）Installed in gear chamber（4）Rear end face,
Speed probe（7）Installed in gear chamber（4）Front end, signal panels（8）Installed in crankshaft-flywheel assembly（13）Front end, oil sump
（5）Installed in cylinder block（12）Lower end.
2. a kind of four-cylinder diesel engine of low emission according to claim 1, it is characterised in that：Outside cooling egr system（1）
Including：EGR air inlet pipe（21）, EGR valve（16）, cooler for recycled exhaust gas（20）, inlet pipe connection（17）, cooler for recycled exhaust gas water inlet sebific duct
（19）, cooler for recycled exhaust gas water outlet sebific duct（18）；EGR air inlet pipe（21）Two ends respectively with blast pipe（10）And cooler for recycled exhaust gas（20）
Connection；EGR valve（16）Installed in cooler for recycled exhaust gas（20）Front end, inlet pipe connection（17）Two ends respectively with EGR valve（16）With
Air inlet pipe（2）Connection, cooler for recycled exhaust gas water inlet sebific duct（19）With cooler for recycled exhaust gas water outlet sebific duct（18）And cooler for recycled exhaust gas（20）
Connection.
3. a kind of four-cylinder diesel engine of low emission according to claim 1, it is characterised in that：Combined type electronically controlled unit pump is supplied
Oil system（3）Including：Combined type electronically controlled unit pump（35）, locking nut（31）, fuel injection pump gear（32）, fuel injection pump gear wheel hub
（33）, adpting flange（34）, crankshaft rotational speed sensor（7）, cooling-water temperature sensor（24）, high-speed electromagnetic valve（26）, fuel oil temperature pressure
Force snesor（27）, injection pump cam shaft speed transducer（28）, wire harness（29）, ECU（30）, high-pressure oil pipe（23）, spray
Oily device（25）And gas pedal（22）；Combined type electronically controlled unit pump（35）Installed in engine side；Fuel injection pump gear wheel hub
（33）Installed in combined type electronically controlled unit pump（35）Drive cam shaft front end, by locking nut（31）Locking, four bolts
By fuel injection pump gear（32）With fuel injection pump gear wheel hub（33）It is fixed, combined type electronically controlled unit pump（35）The adpting flange of front end
（34）Installed in gear chamber（4）Rear end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720115009.6U CN206522209U (en) | 2017-02-08 | 2017-02-08 | A kind of four-cylinder diesel engine of low emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720115009.6U CN206522209U (en) | 2017-02-08 | 2017-02-08 | A kind of four-cylinder diesel engine of low emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522209U true CN206522209U (en) | 2017-09-26 |
Family
ID=59891357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720115009.6U Expired - Fee Related CN206522209U (en) | 2017-02-08 | 2017-02-08 | A kind of four-cylinder diesel engine of low emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206522209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952993A (en) * | 2018-07-19 | 2018-12-07 | 东风商用车有限公司 | A kind of diesel engine rear end gear chamber structure |
-
2017
- 2017-02-08 CN CN201720115009.6U patent/CN206522209U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952993A (en) * | 2018-07-19 | 2018-12-07 | 东风商用车有限公司 | A kind of diesel engine rear end gear chamber structure |
| CN108952993B (en) * | 2018-07-19 | 2023-12-05 | 东风商用车有限公司 | Gear chamber structure at rear end of diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |