CN206903782U - Temperature raising system for low-load air inlet main pipe of engine - Google Patents
Temperature raising system for low-load air inlet main pipe of engine Download PDFInfo
- Publication number
- CN206903782U CN206903782U CN201720608861.7U CN201720608861U CN206903782U CN 206903782 U CN206903782 U CN 206903782U CN 201720608861 U CN201720608861 U CN 201720608861U CN 206903782 U CN206903782 U CN 206903782U
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- China
- Prior art keywords
- engine
- inlet
- bypass
- turbocharger
- air cooler
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- 239000002826 coolant Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000110 cooling liquid Substances 0.000 claims description 5
- 230000018199 S phase Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 20
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Supercharger (AREA)
Abstract
A temperature lifting system for a low-load air inlet header pipe of an engine comprises the engine, an intercooler, a turbocharger and a bypass air path, wherein an intercooler bypass heater is arranged on the bypass air path, air inlets of the intercooler and the intercooler bypass heater are communicated with an outlet of a compressor of the turbocharger through a three-way valve, exhaust ports of the intercooler and the intercooler bypass heater are communicated with an air inlet header pipe of the engine, a liquid inlet and a liquid outlet of the intercooler bypass heater are respectively communicated with a coolant outlet and a coolant inlet of the engine, and a control end of the three-way valve is connected with an output end of an ECU control unit. The design not only effectively improves the temperature raising capability of the system, but also improves the energy recovery rate of the engine.
Description
Technical field
The utility model belongs to technical field of automobile engine, and in particular to a kind of engine low load inlet manifold temperature
Lifting system, the temperature hoisting power suitable for improving system.
Background technology
For engine with supercharger, charge air cooler is the important composition part of pressure charging system.The main function of charge air cooler is
The intake air temperature of engine is reduced, improves the scavenging efficiency of engine.Often non-centering is cold rear warm for existing charge air cooler（Enter temperature
Degree）Specially treated is done, cooling wind is only relied on and cooling system is completed jointly, when engine low load is run, the heat after supercharging
Air temperature after cold in charge air cooler reduces, and relatively low intake air temperature, which enters, participates in burning in engine cylinder, now delivery temperature
It is relatively low, after-treatment system efficient operation can not be met, or even can not work.
Chinese patent：Application publication number is CN102889156A, and data of publication of application is the patent of invention on January 23rd, 2013
Disclose the admission line of a kind of engine with supercharger intellectuality bilateral air agreement device, including by-pass line, its one end and charge air cooler
It is connected, the other end is connected with the outlet pipe of charge air cooler, and the output with ECU electronic control units is provided with by-pass line
Hold the bypass electric control valve being connected.Although the device can improve the delivery temperature of engine in underrun, its is right
The hoisting power of engine exhaust temperature is limited, and when automobile is in heat engine and small load condition, the structure will can not start
The delivery temperature lifting of machine is arrived in preferable scope.
The content of the invention
The purpose of this utility model is to overcome the existing hoisting power to engine exhaust temperature of prior art limited
A kind of problem, there is provided engine low load inlet manifold's temperature lifting system that can be effectively improved its temperature hoisting power.
To realize object above, the technical solution of the utility model is as follows：
A kind of engine low load inlet manifold temperature lifting system, including engine, charge air cooler, turbocharger, side
Vent passage, the air inlet of the charge air cooler, the inlet end for bypassing gas circuit communicate with the blower outlet of turbocharger, in it is cold
Exhaust outlet, the exhaust end of bypass gas circuit of device communicate with the inlet manifold of engine；
Cold bypass heater in being provided with the bypass gas circuit, the air inlet of the charge air cooler, in cold bypass heater
Air inlet communicated by triple valve with the blower outlet of turbocharger, and the control terminal of triple valve and ECU control are single
The output end of member is connected.
In described it is cold bypass heater inlet communicated by No.1 water route with the cooling liquid outlet of engine, in cold side
The leakage fluid dram of logical heater is communicated by No. two water routes with the coolant inlet of engine, and is provided with coolant on No.1 water route
Control valve.
The exhaust outlet of the charge air cooler, in cold bypass heater air inlet of the exhaust outlet by blender and engine it is total
Pipe communicates.
The turbine outlet of the turbocharger is communicated by connecting line with SCR postprocessor, and on connecting line
It is provided with the exhaust gas temperature sensor being connected with the signal input part of ECU control units.
The triple valve is automatically controlled or temperature control three-way valve.
Compared with prior art, the beneficial effects of the utility model are：
1st, a kind of engine low load inlet manifold temperature lifting system of the utility model is cold in being set in bypass gas circuit
Bypass heater, charge air cooler, in it is cold bypass heater air inlet pass through triple valve and the blower outlet of turbocharger
Communicate, and the control terminal of triple valve is connected with the output end of ECU control units, when engine is in heat engine and Smaller load state
When, ECU control units control triple valve to open after receiving the temperature signal from exhaust gas temperature sensor, at coolant control valve
In opening, sub-fraction or blender and largely or entirely hot-air are flowed into after being cooled down without hot-air via charge air cooler
Flow through cold bypass after heater heats and enter blender, finally flow into the inlet manifold of engine, the design is added using active
The mode of heat further improves the intake air temperature of engine intake manifold, so as to improve the delivery temperature of engine, ensure that
Can be by the delivery temperature lifting of engine to preferable scope under heat engine and small load condition.Therefore, the utility model has
Effect improves the temperature hoisting power of system.
2nd, in a kind of engine low load inlet manifold temperature lifting system of the utility model in cold bypass heater enter
Liquid mouth is communicated by No.1 water route with the cooling liquid outlet of engine, and leakage fluid dram is entered by the coolant in No. two water routes and engine
Mouth communicates, and the design heats using engine coolant as thermal source to hot-air, realizes effective utilization of heat energy, improves
The energy recovery rate of engine.Therefore, the utility model improves the energy recovery rate of engine.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：Engine 1, charge air cooler 2, turbocharger 3, bypass gas circuit 4, in it is cold bypass heater 41, inlet
411st, leakage fluid dram 412, No.1 water route 42, two water route 43, triple valve 5, coolant control valve 6, blender 7, ECU control units
8th, connecting line 9, exhaust gas temperature sensor 91, SCR postprocessor 10.
Embodiment
Explanation and embodiment are described in further detail to the utility model below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of engine low load inlet manifold temperature lifting system, including engine 1, charge air cooler 2, turbine
Booster 3, bypass gas circuit 4, the air inlet of the charge air cooler 2, bypass the inlet end of gas circuit 4 and calmed the anger with turbocharger 3
Machine outlet communicates, and the exhaust outlet of charge air cooler 2, bypasses inlet manifold of the exhaust end of gas circuit 4 with engine 1 and communicates；
It is described bypass gas circuit 4 on be provided with it is cold bypass heater 41, the air inlet of the charge air cooler 2, in it is cold bypass plus
The air inlet of hot device 41 is communicated by triple valve 5 with the blower outlet of turbocharger 3, and the control terminal of triple valve 5 with
The output end of ECU control units 8 is connected.
The inlet 411 of cold bypass heater 41 passes through No.1 water route 42 and the cooling liquid outlet phase of engine 1 in described
It is logical, in the leakage fluid dram 412 of cold bypass heater 41 communicated by No. two water routes 43 with the coolant inlet of engine 1, and No.1
Coolant control valve 6 is provided with water route 42.
The exhaust outlet of the charge air cooler 2, in the exhaust outlet of cold bypass heater 41 pass through blender 7 and engine 1
Inlet manifold communicates.
The turbine outlet of the turbocharger 3 is communicated by connecting line 9 with SCR postprocessor 10, and connecting tube
The exhaust gas temperature sensor 91 being connected with the signal input part of ECU control units 8 is provided with road 9.
The triple valve 5 is automatically controlled or temperature control three-way valve.
Principle of the present utility model is described as follows：
The utility model provides a kind of small engine load inlet manifold temperature lifting system, including in cold bypass heating
Device 41, coolant control valve 6, blender 7.In cold bypass heater 41 the entering of charge air cooler 2 is connected to by bypass line 4, arranged
Gas port both ends, there is the function of heating and convey air inlet；The water inlet pipe of the cold bypass heater 41 in being arranged on of coolant control valve 6
Lu Shang, for controlling the switch of heat exchange current；Blender 7 is by from charge air cooler 2, the air of cold bypass heater 41 is carried out with
Mixing, provides temperature uniform and stable air inlet for the inlet manifold of engine 1.Concrete operating principle is as follows：
When engine is in higher load condition, ECU control units 8 receive the temperature letter from exhaust gas temperature sensor 91
Triple valve 5 is controlled to close after number, whole hot-airs after supercharging enter the inlet manifold of engine 1 after the cooling of charge air cooler 2, make
Delivery temperature meets the requirement of SCR postprocessor 10；
When engine is in heat engine and Smaller load state, ECU control units 8 are received from exhaust gas temperature sensor 91
Control triple valve 5 to open after temperature signal, coolant control valve 6 is in opening, sub-fraction or without hot-air in
Inflow blender 7 after cooler 2 cools down, and largely or entirely cold bypass heater 41 in stream of hot air warp, by engine cool
Enter blender 7 after liquid heating, finally flow into the inlet manifold of engine；
When engine is in cold and Smaller load state, ECU control units 8 are received from exhaust gas temperature sensor 91
After temperature signal control triple valve 5 open, coolant control valve 6 is closed, sub-fraction or without hot-air in
Cooler 2 flows into blender 7 after cooling down, and largely or entirely stream of hot air enters blender 7 in after cold bypass heater 41,
Finally flow into the inlet manifold of engine.
Embodiment 1：
Referring to Fig. 1, a kind of engine low load inlet manifold temperature lifting system, including engine 1, charge air cooler 2, turbine
Booster 3, bypass gas circuit 4, the waste gas outlet of the turbocharger 3 are communicated by connecting line 9 with SCR postprocessor 10,
Cold bypass heater 41 in being provided with the bypass gas circuit 4, the air inlet of the charge air cooler 2, in cold bypass heater 41
Air inlet is communicated by triple valve 5 with the blower outlet of turbocharger 3, the exhaust outlet of charge air cooler 2, in it is cold bypass heating
The exhaust outlet of device 41 is communicated by blender 7 with the inlet manifold of engine 1, the inlet of cold bypass heater 41 in described
411 are communicated by No.1 water route 42 with the cooling liquid outlet of engine 1, in it is cold bypass heater 41 leakage fluid dram 412 pass through two
Number water route 43 is communicated with the coolant inlet of engine 1, and coolant control valve 6 is provided with No.1 water route 42, the threeway
Valve 5 is Electrocontrolled tee valve, and exhaust gas temperature sensor 91 is provided with the connecting line 9, and the triple valve 5, delivery temperature pass
Output end of the control terminal of sensor 91 with ECU control units 8 is connected.
Claims (5)
1. a kind of engine low load inlet manifold temperature lifting system, including engine（1）, charge air cooler（2）, turbocharger
（3）, bypass gas circuit（4）, the charge air cooler（2）Air inlet, bypass gas circuit（4）Inlet end and turbocharger（3）'s
Blower outlet communicates, charge air cooler（2）Exhaust outlet, bypass gas circuit（4）Exhaust end and engine（1）Inlet manifold's phase
It is logical, it is characterised in that：
The bypass gas circuit（4）On be provided with cold bypass heater（41）, the charge air cooler（2）Air inlet, in cold bypass
Heater（41）Air inlet pass through triple valve（5）With turbocharger（3）Blower outlet communicate, and triple valve（5）
Control terminal and ECU control units（8）Output end be connected.
A kind of 2. pressurizer oil pipe assembly according to claim 1, it is characterised in that：Cold bypass heater in described
（41）Inlet（411）Pass through No.1 water route（42）With engine（1）Cooling liquid outlet communicate, in cold bypass heater
（41）Leakage fluid dram（412）Pass through No. two water routes（43）With engine（1）Coolant inlet communicate, and No.1 water route（42）On
It is provided with coolant control valve（6）.
A kind of 3. pressurizer oil pipe assembly according to claim 1 or 2, it is characterised in that：The charge air cooler（2）Row
Gas port, in cold bypass heater（41）Exhaust outlet pass through blender（7）With engine（1）Inlet manifold communicate.
A kind of 4. pressurizer oil pipe assembly according to claim 1 or 2, it is characterised in that：The turbocharger（3）
Turbine outlet pass through connecting line（9）With SCR postprocessor（10）Communicate, and connecting line（9）On be provided with and ECU control
Unit processed（8）The exhaust gas temperature sensor that is connected of signal input part（91）.
A kind of 5. pressurizer oil pipe assembly according to claim 1 or 2, it is characterised in that：The triple valve（5）For electricity
Control or temperature control three-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608861.7U CN206903782U (en) | 2017-05-27 | 2017-05-27 | Temperature raising system for low-load air inlet main pipe of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608861.7U CN206903782U (en) | 2017-05-27 | 2017-05-27 | Temperature raising system for low-load air inlet main pipe of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903782U true CN206903782U (en) | 2018-01-19 |
Family
ID=61286419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720608861.7U Active CN206903782U (en) | 2017-05-27 | 2017-05-27 | Temperature raising system for low-load air inlet main pipe of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757240A (en) * | 2018-06-05 | 2018-11-06 | 潍柴动力股份有限公司 | A kind of diesel engine gas handling system and thermal management algorithm, device |
| CN110671213A (en) * | 2019-09-30 | 2020-01-10 | 潍柴动力股份有限公司 | Control system and control method for exhaust temperature of engine |
| CN114294099A (en) * | 2021-11-19 | 2022-04-08 | 东风商用车有限公司 | Engine intake flow and temperature compensation management system |
-
2017
- 2017-05-27 CN CN201720608861.7U patent/CN206903782U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757240A (en) * | 2018-06-05 | 2018-11-06 | 潍柴动力股份有限公司 | A kind of diesel engine gas handling system and thermal management algorithm, device |
| CN110671213A (en) * | 2019-09-30 | 2020-01-10 | 潍柴动力股份有限公司 | Control system and control method for exhaust temperature of engine |
| CN114294099A (en) * | 2021-11-19 | 2022-04-08 | 东风商用车有限公司 | Engine intake flow and temperature compensation management system |
| CN114294099B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Engine air inlet flow and temperature compensation management system |
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