CN208396807U - Engine system of mechanical pressure boost compensation - Google Patents
Engine system of mechanical pressure boost compensation Download PDFInfo
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- CN208396807U CN208396807U CN201820719575.2U CN201820719575U CN208396807U CN 208396807 U CN208396807 U CN 208396807U CN 201820719575 U CN201820719575 U CN 201820719575U CN 208396807 U CN208396807 U CN 208396807U
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- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000001447 compensatory effect Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
A mechanical supercharging compensation engine system comprises an engine, a first bypass pipeline, a supercharger, a second bypass pipeline, a turbocharger and a power turbine, wherein the supercharger, the second bypass pipeline, the turbocharger and the power turbine are arranged on the first bypass pipeline, an air inlet end of an air compressor of the turbocharger is communicated with an air inlet pipeline, an air outlet end of the air compressor is communicated with an air inlet end of the power turbine through the engine, an air outlet pipeline and a turbine of the turbocharger in sequence, an air inlet end and an air outlet end of the first bypass pipeline are respectively communicated with the air inlet pipeline and an air inlet pipe of the engine, an air inlet end and an air outlet end of the second bypass pipeline are respectively communicated with the air outlet pipeline, and the air inlet pipeline, the exhaust pipeline, the second bypass pipeline and the first bypass pipeline are respectively provided with a first on-off valve, a second on-off valve, a third on-off valve and a fourth on-off valve, the first on-off valve and the fourth on-off valve are arranged in parallel, and the second on-off valve and the third on-off valve are arranged in parallel. The design not only reduces the cost, but also improves the heat efficiency of the engine.
Description
Technical field
The utility model belongs to engine supercharging system field, and in particular to a kind of engine system that engine driven supercharging is compensatory
System, suitable for the thermal efficiency for reducing cost, improving engine.
Background technique
Internal combustion engine (especially diesel engine) generally includes the pressure charging system for increasing combustion air pressure.It should
Pressure charging system, to improve atmospheric density, increase air inflow, is followed mainly by feeding cylinder after compressing air in advance to increase
Ring fuel delivery improves the power of engine, obtains good acceleration, and then improve fuel economy.Currently, engine booster
System is mainly using pure turbocharging, engine driven supercharging combination turbocharging both modes.
Chinese patent: on 2 8th, 2017 Authorization Notice No. CN205936822U, authorized announcement date utility model patents
Disclose a kind of engine pack and the vehicle with the engine pack, engine pack include engine, turbocharger,
Mechanical supercharger uses double supercharging technologies of exhaust gas turbocharge and engine driven supercharging, when engine is in slow-speed of revolution operating condition,
Mechanical supercharger work, when engine is in high speed conditions, mechanical supercharger and turbocharger are worked together.Although should
Design compensates for the shortcomings that exhaust gas turbocharge can not work under low engine speeds, but due to high and low turn of mechanical supercharger
Work under fast operating condition, it is therefore desirable to matched volume is larger, better performances mechanical superchargers, allow in this way manufacturing cost compared with
It is high.
Summary of the invention
The problem of the purpose of the utility model is to overcome higher costs existing in the prior art provides a kind of at low cost
The compensatory engine system of engine driven supercharging.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of engine system that engine driven supercharging is compensatory, including engine, mechanical supercharger, turbocharger, the whirlpool
Taking turns booster includes coaxially connected compressor, turbine, and the inlet end of the compressor is communicated with air inlet pipeline, compressor
Exhaust end passes sequentially through engine, gas exhaust piping is communicated with the inlet end of turbine；
The system also includes No.1 bypass line, No. two bypass lines, the mechanical supercharger setting is bypassed in No.1
On pipeline, the inlet and outlet end of the No.1 bypass line is communicated with the air inlet pipe of air inlet pipeline, engine respectively, and described No. two
The inlet and outlet end of bypass line is communicated with the exhaust end of gas exhaust piping, turbine respectively, and the air inlet pipeline, gas exhaust piping,
It is respectively arranged with No.1 on-off valve, No. two on-off valves, No. three on-off valves on No. two bypass lines, is gone back on the No.1 bypass line
No. four on-off valves that exhaust end is communicated with the inlet end of mechanical supercharger are provided with, the No.1 on-off valve and No. four on-off valves are simultaneously
Connection arrangement, No. two on-off valves and No. three on-off valves are arranged in parallel.
The system also includes power turbine, the inlet end of the power turbine is communicated with the exhaust end of turbine, and dynamic
Power turbine and gear reduction transmission cooperate.
The system also includes mechanical clutch, the both ends of the mechanical clutch respectively with the transmission of mechanical supercharger
The transmission of crankshaft cooperation of axis, engine.
Compared with prior art, the utility model has the following beneficial effects:
1, a kind of engine system that engine driven supercharging is compensatory of the utility model includes being disposed with by the No.1 of mechanical supercharger
Siphunculus road, No. two bypass lines, the inlet and outlet end of No.1 bypass line are communicated with the air inlet pipe of air inlet pipeline, engine respectively,
The inlet and outlet end of No. two bypass lines is communicated with the exhaust end of gas exhaust piping, turbine respectively, and air inlet pipeline, gas exhaust piping,
Be respectively arranged on No. two bypass lines, No.1 bypass line No.1 on-off valve, No. two on-off valves, No. three on-off valves, No. four it is logical
Disconnected valve, when engine is in the lesser low speed of air inflow or middling speed running on the lower load, No.1 on-off valve, No. three on-off valves are beaten
It opens, No. two on-off valves, No. four on-off valves are closed, and mechanical supercharger work, air enters engine after mechanical supercharger is pressurized,
And exhaust gas replaces turbocharging using engine driven supercharging, when engine is in high load capacity or high speed in middling speed without turbine
When operating condition, mechanical clutch is disconnected, and mechanical supercharger does not work, and No.1 on-off valve, No. three on-off valves are closed, No. two on-off valves,
No. four on-off valves are opened, and air enters engine after compressor pressure, and exhaust gas is then discharged via turbine, i.e., only with turbine
It is pressurized, in the design, mechanical supercharger only works under low speed or running on the lower load, is convenient for type selecting, can be consistent with matching performance
But the smaller mechanical supercharger of volume, advantageously reduces the manufacturing cost of mechanical supercharger.Therefore, the utility model reduces machine
The manufacturing cost of tool booster.
2, a kind of engine system that engine driven supercharging is compensatory of the utility model further includes power turbine, the air inlet of power turbine
End is communicated with the exhaust end of turbine, and power turbine and gear reduction transmission cooperate, due to the efficient work of power turbine
Make revolving speed compared with booster low one to twice, lesser exhaust energy can be obtained higher working efficiency, when engine be in into
When the lesser low speed of tolerance or middling speed running on the lower load, exhaust gas is directly entered power turbine, substitutes turbocharging with power turbine
Device carries out the recycling of exhaust energy, so that more efficient, when engine be in middling speed high load capacity or high-speed working condition, exhaust gas is passed through
Enter power turbine after crossing exhaust-driven turbo-charger exhaust-gas turbo charger, further recycles the energy of exhaust gas, the above design effectively increases engine
The thermal efficiency, improve the economy of engine.Therefore, the utility model improves the thermal efficiency of engine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: engine 1, mechanical supercharger 2, turbocharger 3, compressor 31, turbine 32, air inlet pipeline 4, No.1
On-off valve 41,5, No. two on-off valves 51 of gas exhaust piping, the on-off valve 61, two bypass line 7, three of No.1 bypass line 6, four
On-off valve 71, power turbine 8, gear reduction 9, mechanical clutch 10.
Specific embodiment
The utility model is further described With reference to embodiment.
Referring to Fig. 1, a kind of engine system that engine driven supercharging is compensatory, including engine 1, mechanical supercharger 2, turbocharging
Device 3, the turbocharger 3 include coaxially connected compressor 31, turbine 32, the inlet end of the compressor 31 and air inlet
Pipeline 4 communicates, and the exhaust end of compressor 31 passes sequentially through engine 1, gas exhaust piping 5 is communicated with the inlet end of turbine 32；
The system also includes 6, No. two bypass lines 7 of No.1 bypass line, the mechanical supercharger 2 is arranged by No.1
On siphunculus road 6, the inlet and outlet end of the No.1 bypass line 6 is communicated with the air inlet pipe of air inlet pipeline 4, engine 1 respectively, institute
The inlet and outlet end for stating No. two bypass lines 7 is communicated with the exhaust end of gas exhaust piping 5, turbine 32 respectively, and the air inlet pipeline
4, the on-off valve 71 of on-off valve 51, three of No.1 on-off valve 41, two is respectively arranged on 5, No. two bypass lines 7 of gas exhaust piping,
No. four on-off valves 61 that exhaust end is communicated with the inlet end of mechanical supercharger 2 are additionally provided on the No.1 bypass line 6, it is described
No.1 on-off valve 41 and No. four on-off valves 61 are arranged in parallel, and No. two on-off valves 51 and No. three on-off valves 71 are arranged in parallel.
The system also includes power turbine 8, the inlet end of the power turbine 8 is communicated with the exhaust end of turbine 32,
And power turbine 8 and the transmission of gear reduction 9 cooperate.
The system also includes mechanical clutch 10, the both ends of the mechanical clutch 10 respectively with mechanical supercharger 2
The transmission of crankshaft cooperation of transmission shaft, engine 1.
The principles of the present invention are described as follows:
The utility model proposes a kind of engine system that engine driven supercharging is compensatory, by be arranged multiple bypass lines with
And on-off valve, replace turbocharging using engine driven supercharging when realizing low speed or middling speed running on the lower load, in middling speed high load capacity or
Plenum is carried out using exhaust-driven turbo-charger exhaust-gas turbo charger when high-speed working condition.The specific working principle is as follows:
When engine is in low speed or middling speed running on the lower load, mechanical clutch 10 is connected, and mechanical supercharger 2 works,
41, No. three on-off valves 71 of No.1 on-off valve are opened, and 51, No. four on-off valves 61 of No. two on-off valves are closed, and air is through mechanical supercharger 2
Enter engine 1 after pressurization, exhaust gas directly enters power turbine 8 via No. two bypass lines 7, realizes the recycling of exhaust energy；
When engine is in middling speed high load capacity or high-speed working condition (exhaust energy is higher at this time), mechanical clutch 10 is disconnected
It opens, mechanical supercharger 2 does not work, and 41, No. three on-off valves 71 of No.1 on-off valve are closed, 51, No. four on-off valves 61 of No. two on-off valves
It opens, air enters engine 1 after the pressurization of compressor 31, and exhaust gas then enters power turbine 8 via turbine 32, realizes exhaust gas
The further recycling of energy after charging turbine.
Embodiment 1:
Referring to Fig. 1, a kind of engine system that engine driven supercharging is compensatory, including engine 1, mechanical supercharger 2, turbocharging
Device 3, No.1 bypass line 6, No. two bypass lines 7, power turbine 8, mechanical clutches 10, the setting of mechanical supercharger 2 exist
On No.1 bypass line 6, the turbocharger 3 includes coaxially connected compressor 31, turbine 32, the compressor 31
Inlet end is communicated with air inlet pipeline 4, and the exhaust end of compressor 31 passes sequentially through engine 1, gas exhaust piping 5, turbine 32 and moves
The inlet end of power turbine 8 communicates, the air inlet with air inlet pipeline 4, engine 1 respectively of the inlet and outlet end of the No.1 bypass line 6
Pipe communicates, and the inlet and outlet end of No. two bypass lines 7 is communicated with the exhaust end of gas exhaust piping 5, turbine 32 respectively, and institute
It states air inlet pipeline 4, be respectively arranged with the on-off valve 51, three of No.1 on-off valve 41, two on 5, No. two bypass lines 7 of gas exhaust piping
On-off valve 71 is additionally provided with No. four on-off that exhaust end is communicated with the inlet end of mechanical supercharger 2 on the No.1 bypass line 6
Valve 61, the No.1 on-off valve 41 and No. four on-off valves 61 are arranged in parallel, No. two on-off valves 51 cloth in parallel with No. three on-off valves 71
Set, the power turbine 8 cooperates with the transmission of gear reduction 9, the both ends of the mechanical clutch 10 respectively with engine driven supercharging
The transmission of crankshaft cooperation of the transmission shaft, engine 1 of device 2.
Claims (3)
1. a kind of engine system that engine driven supercharging is compensatory, including engine (1), mechanical supercharger (2), turbocharger (3),
The turbocharger (3) includes coaxially connected compressor (31), turbine (32), the inlet end of the compressor (31) with
Air inlet pipeline (4) communicates, and the exhaust end of compressor (31) passes sequentially through engine (1), gas exhaust piping (5) and turbine (32)
Inlet end communicates, it is characterised in that:
The system also includes No.1 bypass line (6), No. two bypass lines (7), the mechanical supercharger (2) is arranged in No.1
On bypass line (6), the air inlet with air inlet pipeline (4), engine (1) respectively of the inlet and outlet end of the No.1 bypass line (6)
Pipe communicates, the inlet and outlet end of No. two bypass lines (7) the exhaust end phase with gas exhaust piping (5), turbine (32) respectively
It is logical, and the air inlet pipeline (4), gas exhaust piping (5), it is respectively arranged with No.1 on-off valve (41), two on No. two bypass lines (7)
Number on-off valve (51), No. three on-off valves (71) are additionally provided with exhaust end and mechanical supercharger on the No.1 bypass line (6)
(2) No. four on-off valves (61) that inlet end communicates, the No.1 on-off valve (41) are arranged in parallel with No. four on-off valves (61), and two
Number on-off valve (51) is arranged in parallel with No. three on-off valves (71).
2. a kind of compensatory engine system of engine driven supercharging according to claim 1, it is characterised in that: the system is also wrapped
Include power turbine (8), the inlet end of the power turbine (8) is communicated with the exhaust end of turbine (32), and power turbine (8) with
Gear reduction (9) transmission cooperation.
3. a kind of compensatory engine system of engine driven supercharging according to claim 1 or 2, it is characterised in that: the system
Further include mechanical clutch (10), the both ends of the mechanical clutch (10) respectively with the transmission shaft of mechanical supercharger (2), start
The transmission of crankshaft of machine (1) cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820719575.2U CN208396807U (en) | 2018-05-15 | 2018-05-15 | Engine system of mechanical pressure boost compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820719575.2U CN208396807U (en) | 2018-05-15 | 2018-05-15 | Engine system of mechanical pressure boost compensation |
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| Publication Number | Publication Date |
|---|---|
| CN208396807U true CN208396807U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820719575.2U Active CN208396807U (en) | 2018-05-15 | 2018-05-15 | Engine system of mechanical pressure boost compensation |
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| Country | Link |
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| CN (1) | CN208396807U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561223A (en) * | 2018-05-15 | 2018-09-21 | 东风商用车有限公司 | Mechanical supercharging compensation engine system and control method thereof |
| CN110500174A (en) * | 2019-08-06 | 2019-11-26 | 东风商用车有限公司 | The parallel electronic pressure charging system of one kind and its control method |
| CN114961982A (en) * | 2022-06-21 | 2022-08-30 | 一汽奔腾轿车有限公司 | Integrated mechanical supercharger and turbocharger |
-
2018
- 2018-05-15 CN CN201820719575.2U patent/CN208396807U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561223A (en) * | 2018-05-15 | 2018-09-21 | 东风商用车有限公司 | Mechanical supercharging compensation engine system and control method thereof |
| CN110500174A (en) * | 2019-08-06 | 2019-11-26 | 东风商用车有限公司 | The parallel electronic pressure charging system of one kind and its control method |
| CN114961982A (en) * | 2022-06-21 | 2022-08-30 | 一汽奔腾轿车有限公司 | Integrated mechanical supercharger and turbocharger |
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