CN106523134A - Two-stage supercharging device for engine and working method for two-stage supercharging device - Google Patents
Two-stage supercharging device for engine and working method for two-stage supercharging device Download PDFInfo
- Publication number
- CN106523134A CN106523134A CN201611037960.0A CN201611037960A CN106523134A CN 106523134 A CN106523134 A CN 106523134A CN 201611037960 A CN201611037960 A CN 201611037960A CN 106523134 A CN106523134 A CN 106523134A
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- China
- Prior art keywords
- engine
- air
- booster
- pressure stage
- waste gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a two-stage supercharging device for an engine and a working method for the two-stage supercharging device. The two-stage supercharging device comprises an air filtering device, a low-pressure-stage supercharging device, a high-pressure-stage supercharging device, an intercooler and the engine. The air filtering device is connected with the low-pressure-stage supercharging device through a pipeline. The low-pressure-stage supercharging device is connected with the high-pressure-stage supercharging device through a compressor connecting pipe. The high-pressure-stage supercharging device is connected with the intercooler through a pipeline. The intercooler is connected with the engine through a pipeline. A waste gas joint of the engine is connected with a waste gas joint of the high-pressure-stage supercharging device through a waste gas connecting pipeline. A turbine joint of the high-pressure-stage supercharging device is connected with a turbine joint of the low-pressure-stage supercharging device through a waste gas connecting pipeline. According to the two-stage supercharging device for the engine, after two-stage supercharging is adopted, air is compressed, more air can be introduced into the engine under the same size, the engine can achieve more sufficient combustion, and meanwhile the performance of the engine is improved as well.
Description
Technical field
The invention belongs to technical field of mechanical equipment, and in particular to a kind of two-stage supercharging device of engine and its method of work.
Background technology
Total well known, the heat utilization efficiency of engine is relatively low.Heat after most burning is through being discharged to air
In, the energy of portion make use of using exhaust-driven turbo-charger exhaust-gas turbo charger.Single-stage supercharger uses the connection of a booster
Structure, waste gas entered turbocharging compression after, drive compressor, so as to compressed air, make the atmospheric density into combustion chamber
Increase, impact coefficient increases, improve the power of engine, reduce oil consumption and reduce discharge.But the pressure ratio of single stage supercharging compared with
Low, range of flow is limited.In order to further improve pressure ratio, power and the discharge of engine are improved, using two-stage supercharging.
The content of the invention
Goal of the invention：In order to solve the deficiencies in the prior art, the invention provides a kind of two-stage supercharging device of engine
And its method of work.
Technical scheme：A kind of two-stage supercharging device of engine, including air filter, low-pressure stage booster, hiigh pressure stage
Booster, charge air cooler and engine；Air filtering core is provided with the air filter, air is provided with the air filter and is connect
Mouthful；Air compression interface, waste gas interface and turbine interface are equipped with the hiigh pressure stage booster and low-pressure stage booster；It is described
Engine is provided with air compression interface and waste gas interface；
The air interface of the air filter is connected by pipeline with the air compression interface of low-pressure stage booster, the low pressure
Connected by compressor connecting tube between level booster and hiigh pressure stage booster, the hiigh pressure stage booster is with charge air cooler by pipe
Road connects, and is connected by pipeline between the charge air cooler and the air compression interface of engine；
The waste gas interface of the engine is connected by waste gas connecting line with the waste gas interface of hiigh pressure stage booster, the high pressure
Connected by waste gas connecting line between the level turbine interface of booster and the turbine interface of low-pressure stage booster.
As optimization：The engine is in-line engine or V-type engine.
A kind of method of work of the two-stage supercharging device of the engine described in basis, air were carried out through air filter
Filter, the air after filtration is sent to hiigh pressure stage booster after low-pressure stage compressed, through hiigh pressure stage compressed
Cool down through charge air cooler afterwards, and then air is entered in engine；
The waste gas of engine out, after the turbo-compressor of hiigh pressure stage booster, is connected to through connecting tube low from engine
Arbitrarily downgrading and two-stage supercharging is carried out on the turbine of booster, waste gas is finally discharged outside engine.
Beneficial effect：On the engine using the series system of two boosters, one is hiigh pressure stage booster to the present invention,
One is low-pressure stage booster, and hiigh pressure stage booster is an one-level booster, and low-pressure stage booster is a two-stage supercharger.
Low-pressure stage booster flow is less, and rotary inertia is less, can improve the boost pressure of diesel engine speed operation, improves and increases
The response characteristic of pressure system.Hiigh pressure stage booster is one-level booster, and waste gas first promotes little turbine intervention work and provides abundance
Air inflow, power output is improved, and plays the output efficiency of power to greatest extent.
During low speed, the quick response of diesel engine is realized using the less circulation area of hiigh pressure stage in pressure charging system,
Using the larger circulation area of pressure charging system low-pressure stage completing big air demand during high speed.By adopting two different sizes of series connection
Turbocharger, when engine is operated in compared with low speed, by less exhaust can drive turbocharger run up,
And produce enough admission pressures.Waste gas first promotes little turbine intervention work and provides the air inflow of abundance, and power output is able to
Improve, play the output efficiency of power to greatest extent.Simultaneously using the discharge that tail gas is reduced after two-stage supercharging, oil is reduced
Consumption, increased the nominal power of engine.
After two-stage supercharging, after air is compressed, same volume can enter more air, and engine can be more abundant
Burning, while engine performance also increases.
This patent is applied to in-line arrangement and V-type engine（Including gasoline engine, diesel engine and natural gas engine etc.）.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial structural diagram in the present invention；
Fig. 3 is the air filtering device structure schematic diagram in the present invention.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment
As Figure 1-3, a kind of two-stage supercharging device of engine, including air filter, low-pressure stage booster, high pressure
Level booster, charge air cooler and engine；Air filtering core 4 is provided with the air filter, on the air filter, sky is provided with
Gas interface 5；It is equipped with air compression interface 1, waste gas interface 2 and turbine to connect on the hiigh pressure stage booster and low-pressure stage booster
Mouth 3；The engine is provided with air compression interface and waste gas interface.
The air interface 5 of the air filter is connected by pipeline with the air compression interface 1 of low-pressure stage booster, institute
State, the hiigh pressure stage booster and charge air cooler
Connected by pipeline, connected by pipeline between the charge air cooler and the air compression interface of engine.
The waste gas interface of the engine is connected by waste gas connecting line with the waste gas interface 2 of hiigh pressure stage booster, institute
Connected by waste gas connecting line between the turbine interface 3 of the turbine interface 3 and low-pressure stage booster of stating hiigh pressure stage booster.
The engine is in-line engine or V-type engine.
A kind of method of work of the two-stage supercharging device of the engine described in basis, air were carried out through air filter
Filter, the air after filtration is sent to hiigh pressure stage booster after low-pressure stage compressed, through hiigh pressure stage compressed
Cool down through charge air cooler afterwards, and then air is entered in engine；
The waste gas of engine out, after the turbo-compressor of hiigh pressure stage booster, is connected to through connecting tube low from engine
Arbitrarily downgrading and two-stage supercharging is carried out on the turbine of booster, waste gas is finally discharged outside engine.
Compared to one-level booster, in structure, two-stage supercharger employs two boosters, in pipeline arrangement, two
Level booster increased than one-level booster and a set of be connected to hiigh pressure stage booster whirlpool from low-pressure stage booster turbine and compressor
The pipeline of wheel and compressor.It is more complicated compared to structure for one-level booster using structure after two-stage supercharger, while entering
Blast pipe arrangement is more accurate.
From for the efficiency of booster, after two-stage supercharger, pressure ratio compares one-level booster significantly with supercharging level
Improve.As in low engine speed, the waste gas that engine is produced is less, the engine turbine efficiency being pressurized using one-level is low,
Low pressure, affects low engine speed moment of torsion and oil consumption.After using two-stage supercharging, when low speed waste gas is little, turbine Jing
Utilize after twice, larger boost pressure can be produced under less flow, improve performance and the discharge of engine, while
During high speed and under variable working condition, two-stage supercharging can preferably play the efficiency of engine compared to one-level supercharging.
On the engine using the series system of two boosters, one is hiigh pressure stage booster to the present invention, and one is low
Arbitrarily downgrade booster, hiigh pressure stage booster is an one-level booster, and low-pressure stage booster is a two-stage supercharger.Low-pressure stage increases
Depressor flow is less, and rotary inertia is less, can improve the boost pressure of diesel engine speed operation, improves pressure charging system
Response characteristic.Hiigh pressure stage booster is one-level booster, and waste gas first promotes little turbine intervention work and provides the air inflow of abundance,
Power output is improved, and plays the output efficiency of power to greatest extent.
During low speed, the quick response of diesel engine is realized using the less circulation area of hiigh pressure stage in pressure charging system,
Using the larger circulation area of pressure charging system low-pressure stage completing big air demand during high speed.By adopting two different sizes of series connection
Turbocharger, when engine is operated in compared with low speed, by less exhaust can drive turbocharger run up,
And produce enough admission pressures.Waste gas first promotes little turbine intervention work and provides the air inflow of abundance, and power output is able to
Improve, play the output efficiency of power to greatest extent.Simultaneously using the discharge that tail gas is reduced after two-stage supercharging, oil is reduced
Consumption, increased the nominal power of engine.
After two-stage supercharging, after air is compressed, same volume can enter more air, and engine can be more abundant
Burning, while engine performance also increases.
This patent is applied to in-line arrangement and V-type engine（Including gasoline engine, diesel engine and natural gas engine etc.）.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that other are various under the enlightenment of the present invention
The product of form, however, make any change in its shape or structure, it is every with skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (3)
1. the two-stage supercharging device of a kind of engine, it is characterised in that：Including air filter, low-pressure stage booster, hiigh pressure stage
Booster, charge air cooler and engine；Air filtering core is provided with the air filter, air is provided with the air filter and is connect
Mouthful；Air compression interface, waste gas interface and turbine interface are equipped with the hiigh pressure stage booster and low-pressure stage booster；It is described
Engine is provided with air compression interface and waste gas interface；
The air interface of the air filter is connected by pipeline with the air compression interface of low-pressure stage booster, the low pressure
Connected by compressor connecting tube between level booster and hiigh pressure stage booster, the hiigh pressure stage booster is with charge air cooler by pipe
Road connects, and is connected by pipeline between the charge air cooler and the air compression interface of engine；
The waste gas interface of the engine is connected by waste gas connecting line with the waste gas interface of hiigh pressure stage booster, the high pressure
Connected by waste gas connecting line between the level turbine interface of booster and the turbine interface of low-pressure stage booster.
2. the two-stage supercharging device of engine according to claim 1, it is characterised in that：The engine is sent out for in-line arrangement
Motivation or V-type engine.
3. a kind of method of work of the two-stage supercharging device of engine according to claim 1, it is characterised in that：Air Jing
Cross air filter to be filtered, the air after filtration is sent to hiigh pressure stage booster, Jing after low-pressure stage compressed
Cool down through charge air cooler after crossing hiigh pressure stage compressed, and then air is entered in engine；
The waste gas of engine out, after the turbo-compressor of hiigh pressure stage booster, is connected to through connecting tube low from engine
Arbitrarily downgrading and two-stage supercharging is carried out on the turbine of booster, waste gas is finally discharged outside engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037960.0A CN106523134A (en) | 2016-11-23 | 2016-11-23 | Two-stage supercharging device for engine and working method for two-stage supercharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037960.0A CN106523134A (en) | 2016-11-23 | 2016-11-23 | Two-stage supercharging device for engine and working method for two-stage supercharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106523134A true CN106523134A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611037960.0A Pending CN106523134A (en) | 2016-11-23 | 2016-11-23 | Two-stage supercharging device for engine and working method for two-stage supercharging device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2491130A1 (en) * | 1980-09-29 | 1982-04-02 | Kronogard Sven Olof | INTEGRATED TURBOCHARGER CYLINDER HEAD |
| CN1834421B (en) * | 2005-03-19 | 2012-05-16 | 曼·B及W柴油机公开股份有限公司 | Internal combustion engine |
| CN103615309A (en) * | 2013-12-10 | 2014-03-05 | 吉林大学 | All-work-condition adjustable two-stage pressurizing system of internal combustion engine |
| CN105649756A (en) * | 2016-01-13 | 2016-06-08 | 中国重汽集团济南动力有限公司 | Twin-stage supercharged engine with interstage cooler |
| CN206309471U (en) * | 2016-11-23 | 2017-07-07 | 南通柴油机股份有限公司 | A kind of two-stage supercharging device of engine |
-
2016
- 2016-11-23 CN CN201611037960.0A patent/CN106523134A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2491130A1 (en) * | 1980-09-29 | 1982-04-02 | Kronogard Sven Olof | INTEGRATED TURBOCHARGER CYLINDER HEAD |
| CN1834421B (en) * | 2005-03-19 | 2012-05-16 | 曼·B及W柴油机公开股份有限公司 | Internal combustion engine |
| CN103615309A (en) * | 2013-12-10 | 2014-03-05 | 吉林大学 | All-work-condition adjustable two-stage pressurizing system of internal combustion engine |
| CN105649756A (en) * | 2016-01-13 | 2016-06-08 | 中国重汽集团济南动力有限公司 | Twin-stage supercharged engine with interstage cooler |
| CN206309471U (en) * | 2016-11-23 | 2017-07-07 | 南通柴油机股份有限公司 | A kind of two-stage supercharging device of engine |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |