CN105781718A - Successive pressurizing system achieving multi-mode switching - Google Patents
Successive pressurizing system achieving multi-mode switching Download PDFInfo
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- CN105781718A CN105781718A CN201610265664.XA CN201610265664A CN105781718A CN 105781718 A CN105781718 A CN 105781718A CN 201610265664 A CN201610265664 A CN 201610265664A CN 105781718 A CN105781718 A CN 105781718A
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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
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
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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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0412—Multiple heat exchangers arranged in parallel or 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
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
- F02B37/162—Control of the pumps by bypassing charging air by bypassing, e.g. partially, intake air from pump inlet to pump outlet
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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
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
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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
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention aims at providing a successive pressurizing system achieving multi-mode switching. The successive pressurizing system comprises a diesel engine, an exhaust manifold, an air inlet manifold, an A-column pressurizing system and a B-column pressurizing system. The diesel engine is connected with the air inlet manifold and the exhaust manifold. The A-column pressurizing system comprises an A-column small turbocharger and an A-column large turbocharger. The B-column pressurizing system comprises a B-column small turbocharger and a B-column large turbocharger. The A-column small turbocharger and the A-column large turbocharger are connected in series and then connected with the diesel engine. The B-column small turbocharger and the B-column large turbocharger are connected in series and then connected with the diesel engine. Entering and exiting of the four turbochargers are controlled by installing valves on corresponding pipelines. The requirements for the air inlet amount and the air inlet pressure of the diesel engine under various working conditions can be met, in addition, the problem of the low-load characteristic of the diesel engine can be solved, and the performance of the diesel engine is overall improved.
Description
Technical field
The present invention relates to a kind of diesel engine, specifically supercharged diesel engine.
Background technology
Nowadays the world is faced with serious problem of environmental pollution and energy crisis, and diesel engine has a wide range of applications as the power source of big machinery, improves the power density of diesel engine, reduces engine fuel consumption and minimizing diesel emission is very necessary.The performance of diesel engine is greatly improved by the appearance of supercharging technology, but it is as the development of diesel technology, traditional supercharging mode cannot meet the diesel engine demand to boost pressure, and demand to diesel engine intake under diesel engine different load, develop the multiple supercharging mode shortcoming for solving tradition supercharging mode at present, sequential pressurizing can solve the problem that diesel engine underload characteristic, improve the transient response of diesel engine, reduce the discharge of diesel particulate, therefore it is widely used, sequential pressurizing is to adopt multiple stage supercharger in parallel, increase along with diesel engine speed Yu load, supercharger is devoted oneself to work in order successively, to ensure that supercharger is all operated in high efficient area, improve dynamic property and the economy of electromotor.
Summary of the invention
It is an object of the invention to provide the consecutive pressurization system realizing multi-mode switching that can meet under each operating mode of diesel engine air inflow and admission pressure demand.
The object of the present invention is achieved like this:
nullThe present invention realizes the consecutive pressurization system of multi-mode switching，It is characterized in that: include diesel engine、Exhaust main、Inlet manifold、A row pressure charging system、B row pressure charging system，Diesel engine is connected with inlet manifold and exhaust main respectively，Described A row pressure charging system includes A and arranges little turbocharger and the A big turbocharger of row，B row pressure charging system includes B and arranges little turbocharger and the B big turbocharger of row，A arranges the A of little turbocharger and arranges the entrance of little turbine by A row exhaust branch pipe connection exhaust main，B arranges the B of little turbocharger and arranges the entrance of little turbine by B row exhaust branch pipe connection exhaust main，A row exhaust branch pipe is connected by communicating exhaust gas pipe with B row exhaust branch pipe，The B of outlet and the B little turbocharger of row that A arranges the A little compressor of row of little turbocharger is arranged the outlet of little compressor and is connected by compressor communicating pipe，Compressor communicating pipe connection inlet manifold，A arranges the outlet of little turbine and arranges the little turbine outlet pipe connection A entrance arranging the A big turbine of row of big turbocharger by A，A arranges big turbine and arranges big turbine outlet pipe connection air by A，A row exhaust branch pipe is arranged big turbine outlet pipe with A and is connected by A row bypass pipe，A row bypass pipe arranges little turbine outlet pipe with A and is connected，The outlet of the entrance of the A little compressor of row and the A big compressor of row of the A big turbocharger of row arranges big blower outlet pipe by A and is connected，A arranges big compressor connection air，B arranges the outlet of little turbine and arranges the little turbine outlet pipe connection B entrance arranging the B big turbine of row of big turbocharger by B，B arranges big turbine and arranges big turbine outlet pipe connection air by B，B row exhaust branch pipe is arranged big turbine outlet pipe with B and is connected by B row bypass pipe，B row bypass pipe arranges little turbine outlet pipe with B and is connected，The outlet of the entrance of the B little compressor of row and the B big compressor of row of the B big turbocharger of row arranges big blower outlet pipe by B and is connected，B arranges big compressor connection air.
The present invention can also include:
1, install air cock compressor communicating pipe, B row exhaust branch pipe is installed gas valve, A row bypass pipe is respectively mounted A and arranges little turbine bypass valve and the A big turbine bypass valve of row, B row bypass pipe is respectively mounted B and arranges little turbine bypass valve and the B big turbine bypass valve of row.
2, charge air cooler after compressor communicating pipe upper installation the first little compressor after the little blower outlet of A row, charge air cooler after compressor communicating pipe upper installation the second little compressor after the B little blower outlet of row, A arranges and installs charge air cooler after the first big compressor on little blower outlet pipe, and the B little blower outlet pipe of row is installed charge air cooler after second largest compressor.
Present invention have an advantage that the present invention can meet the demand under each operating mode of diesel engine to air inflow and admission pressure, and the underload characteristic of diesel engine can be solved, be integrally improved the performance of diesel engine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
In conjunction with Fig. 1, the present invention includes diesel engine D, A and arranges little turbine A1, A and arrange little compressor A2, A and arrange big turbine A3, A and arrange big compressor A4, B and arrange little turbine B1, B and arrange that little compressor B2, B arrange that big turbine B3, B arrange big compressor B4, exhaust main 1, inlet manifold 2, B arranges little turbine bypass valve 3, B arranges big turbine bypass valve 4, A arranges little turbine bypass valve 5, A arranges after big turbine bypass valve 6, air cock 7, gas valve 8, big compressor charge air cooler 10, A row bypass pipe 11, B row bypass pipe 12 after charge air cooler 9, little compressor.nullDiesel engine D both sides are connected with inlet manifold 2 and exhaust main 1 respectively，A row pressure charging system is arranged little turbine A1 and A by an A and arranges the Two Stage Turbocharging System formed after the little compressor A2 little turbocharger formed is connected with an A row big turbine A3 and A big compressor A4 of the row big turbocharger formed，A arranges the entrance of little turbine A1 and is connected with exhaust main 1，A arranges the outlet of little turbine A1 and is connected with the A entrance arranging big turbine A3，A arranges the outlet of big turbine A3 and communicates with atmospheric environment，To be discharged in atmospheric environment，And it is in parallel that A arranges little turbine A1 and A row bypass pipe 11，It is in parallel that A arranges big turbine A3 and A row bypass pipe 11，On A row bypass pipe 11, A arranges and is respectively provided with the A little turbine bypass valve 5 of row and the A big turbine bypass valve 6 of row on the big position corresponding for turbine A3 of little turbine A1 and A row，A arranges big compressor A4 entrance and communicates with atmospheric environment，A arranges big compressor A4 outlet and is connected with the A little compressor A2 entrance of row，Centre is provided with charge air cooler 9 after big compressor，A arranges little compressor A2 outlet charge air cooler 10 after too small compressor and is connected with inlet manifold 2；nullB row pressure charging system is arranged little turbine B1 and B by a B and arranges the Two Stage Turbocharging System formed after the little compressor B2 little turbocharger formed is connected with a B row big turbine B3 and B big compressor B4 of the row big turbocharger formed，B arranges the entrance of little turbine B1 and is connected with exhaust main 1，Arrange at B and a gas valve 8 is installed before little turbine B1 entrance，B arranges the outlet of little turbine B1 and is connected with the B entrance arranging big turbine B3，B arranges the outlet of big turbine B3 and communicates with atmospheric environment，To be discharged in atmospheric environment，And it is in parallel that B arranges little turbine B1 and B row bypass pipe 12，It is in parallel that B arranges big turbine B3 and B row bypass pipe 12，On B row bypass pipe 12, B arranges and is respectively provided with the B little turbine bypass valve 3 of row and the B big turbine bypass valve 4 of row on the big position corresponding for turbine B3 of little turbine B1 and B row，B arranges big compressor B4 entrance and communicates with atmospheric environment，B arranges big compressor B4 outlet and is connected with the B little compressor B2 entrance of row，Centre is provided with charge air cooler 9 after big compressor，B arranges charge air cooler 10 after little compressor B2 outlet first passes through little compressor and is connected with inlet manifold 2 after air cock 7.
When being in low speed or underload as diesel engine D, A arranges little turbine bypass valve 5, B arranges little turbine bypass valve 3, B arranges big turbine bypass valve 4, air cock 7 and gas valve 8 all in closed mode, A arranges big turbine bypass valve 6 and opens, now only have A arrange little turbine A1 and A arrange little compressor A2 work, now realize one little turbocharger supercharged；Rising along with diesel engine speed Yu load, one little turbocharger supercharged can not meet air inlet demand, now the little turbine bypass valve 5 of A row is closed with the B little turbine bypass valve 3 of row, the big turbocharger bypass 6 of air cock 7, gas valve 8, A row arranges big turbine bypass valve 4 with B and opens, now A arranges little turbine A1 and A and arranges little turbine B1 and the B row little compressor B2 work of little compressor A2, B row, it is achieved thereby that two little turbocharger parallel connection superchargings；In order to improve more air inflow, improve underload smoke intensity, now A arranges big turbine bypass valve 6, B arranges little turbine bypass valve 3, B arranges big turbine bypass valve 4, air cock 7 and gas valve 8 all in closed mode, A arranges little turbine bypass valve 5 and opens, now only have A to arrange big turbine A3 and A and arrange big compressor A4 work, it is achieved one big turbocharger supercharged.
When being in moderate rotation or moderate duty as diesel engine D, A arranges little turbine bypass valve 5, A arranges big turbine bypass valve 6, B arranges little turbine bypass valve 3, B arranges big turbine bypass valve 4, air cock 7 and gas valve 8 all in closed mode, now A row little turbine A1 and A row little compressor A2, A row big turbine A3 and A big compressor A4 of row works, it is achieved the two-step supercharging that a little turbocharger is connected with a big turbocharger；Increase along with load, A arranges big turbine bypass valve 6, B arranges little turbine bypass valve 3 and closes, the A little turbine bypass valve 5 of row, air cock 7, gas valve 8, B arrange big turbine bypass valve 4 and open, now A arranges big turbine A3 and A and arranges big compressor A4, B and arrange little turbine B1 and the B little compressor B2 of row and work, it is achieved the supercharging in parallel with big turbocharger of little turbocharger；Along with the further of air inflow is increased by diesel engine, now A arranges big turbine bypass valve 6, B arranges big turbine bypass valve 4 and closes, and the A little turbine bypass valve 5 of row, air cock 7, gas valve 8, B arrange little turbine bypass valve 3 and open, it is achieved two big turbocharger parallel connection superchargings.
nullWhen being in high rotating speed or high load capacity as diesel engine D，A arranges little turbine bypass valve 5、A arranges big turbine bypass valve 6、B arranges little turbine bypass valve 3、B arranges big turbine bypass valve 4 and closes，Air cock 7 and gas valve 8 are opened，Now A arranges little turbine A1 and A and arranges little compressor A2、A arranges big turbine A3 and A and arranges big compressor A4、B arranges little turbine B1 and B and arranges little compressor B2、B arranges big turbine B3 and the B big compressor B4 of row and works，Realize the supercharging in parallel of the two-stage supercharging composition that then and one little turbocharger of two-stage supercharging that a little turbocharger connects is connected with a big turbocharger with a big turbocharger，When diesel engine D is in high rotating speed high load capacity，In order to prevent little turbocharger from exceeding the speed limit，Now need suitably to open the little turbine bypass valve 5 of A row and arrange little turbine bypass valve 3 with B，Some gases is passed directly to A and arranges big turbine A3 and the B big turbine B3 of row.
It is an object of the invention to provide one can realize one little turbocharger supercharged, two little turbocharger parallel connection superchargings, one big turbocharger supercharged, the two-step supercharging that one little turbocharger is connected with a big turbocharger, the supercharging in parallel with big turbocharger of one little turbocharger, two big turbocharger parallel connection superchargings, the supercharging in parallel of the two-stage supercharging composition that then and one little turbocharger of two-stage supercharging that one little turbocharger is connected with a big turbocharger is connected with a big turbocharger, the demand to air inflow and admission pressure under each operating mode of diesel engine can be met, and the underload characteristic of diesel engine can be solved, thus being integrally improved the performance of diesel engine, the consecutive pressurization system of multi-mode switching can be realized.
Specific embodiments of the present invention are as follows: include diesel engine, A arranges little turbine, A arranges little compressor, A arranges big turbine, A arranges big compressor, B arranges little turbine, B arranges little compressor, B arranges big turbine, B arranges big compressor, exhaust main, inlet manifold, B arranges little turbine bypass valve, B arranges big turbine bypass valve, A arranges little turbine bypass valve, A arranges after big turbine bypass valve, air cock, gas valve, big compressor charge air cooler, A row bypass pipe, B row bypass pipe after charge air cooler, little compressor.nullDiesel engine both sides are connected with inlet manifold and exhaust main respectively，The Two Stage Turbocharging System that the big turbocharger that the little turbocharger that A row pressure charging system is made up of an A little turbine of row and the A little compressor of row forms with an A big turbine of row and the A big compressor of row forms after connecting，A arranges the entrance of little turbine and is connected with exhaust main，A arranges the outlet of little turbine and is connected with the A entrance arranging big turbine，A arranges the outlet of big turbine and communicates with atmospheric environment，To be discharged in atmospheric environment，And it is in parallel with A row bypass pipe that A arranges little turbine，It is in parallel with A row bypass pipe that A arranges big turbine，On A row bypass pipe, A arranges and is respectively provided with the A little turbine bypass valve of row and the A big turbine bypass valve of row on the position that little turbine is corresponding with the A big turbine of row，A arranges big compressor inlet and communicates with atmospheric environment，A arranges big blower outlet and is connected with the A little compressor inlet of row，Centre is provided with charge air cooler after big compressor，A arranges little blower outlet charge air cooler after too small compressor and is connected with inlet manifold；nullThe Two Stage Turbocharging System that the big turbocharger that the little turbocharger that B row pressure charging system is made up of a B little turbine of row and the B little compressor of row forms with a B big turbine of row and the B big compressor of row forms after connecting，B arranges the entrance of little turbine and is connected with exhaust main，Arrange at B and a gas valve is installed before little turbine inlet，B arranges the outlet of little turbine and is connected with the B entrance arranging big turbine，B arranges the outlet of big turbine and communicates with atmospheric environment，To be discharged in atmospheric environment，And it is in parallel with B row bypass pipe that B arranges little turbine，It is in parallel with B row bypass pipe that B arranges big turbine，On B row bypass pipe, B arranges and is respectively provided with the B little turbine bypass valve of row and the B big turbine bypass valve of row on the position that little turbine is corresponding with the B big turbine of row，B arranges big compressor inlet and communicates with atmospheric environment，B arranges big blower outlet and is connected with the B little compressor inlet of row，Centre is provided with charge air cooler after big compressor，B arranges charge air cooler after little blower outlet first passes through little compressor and is connected with inlet manifold after air cock.
When being in low speed or underload when diesel engine, A arranges little turbine bypass valve, B arranges little turbine bypass valve, B arranges big turbine bypass valve, air cock and gas valve all in closed mode, A arranges big turbine bypass valve and opens, now only have A to arrange little turbine and arrange the work of little compressor with A, it is achieved one little turbocharger supercharged；Rising along with diesel engine speed Yu load, one little turbocharger supercharged can not meet air inlet demand, now A arranges little turbine bypass valve and arranges the closedown of little turbine bypass valve with B, air cock, gas valve, A arrange big turbocharger bypass and arrange the unlatching of big turbine bypass valve with B, now A arranges little turbine and arranges the work of little compressor with the A little compressor of row, the B little turbine of row with B, it is achieved thereby that two little turbocharger parallel connection superchargings；In order to improve more air inflow, improve underload smoke intensity, now A arranges big turbine bypass valve, B arranges little turbine bypass valve, B arranges big turbine bypass valve, air cock and gas valve all in closed mode, A arranges little turbine bypass valve and opens, now only have A to arrange big turbine and arrange the work of big compressor with A, it is achieved one big turbocharger supercharged.
When being in moderate rotation or moderate duty when diesel engine, A arranges little turbine bypass valve, A arranges big turbine bypass valve, B arranges little turbine bypass valve, B arranges big turbine bypass valve, air cock and gas valve all in closed mode, now the little turbine of A row and A arrange little compressor, A arranges big turbine and works with the A big compressor of row, it is achieved the two-step supercharging that a little turbocharger is connected with a big turbocharger；Increase along with load, A arranges big turbine bypass valve, B arranges little turbine bypass valve and closes, A arranges little turbine bypass valve, air cock, gas valve, the big turbine bypass valve unlatching of B row, now A arranges that big turbine and A arrange big compressor, B arranges little turbine and arranges the work of little compressor with B, it is achieved the supercharging in parallel with big turbocharger of little turbocharger；Along with the further of air inflow is increased by diesel engine, now the big turbine bypass valve of A row, B arrange big turbine bypass valve and close, and A arranges little turbine bypass valve, air cock, gas valve, the little turbine bypass valve unlatching of B row, it is achieved two big turbocharger parallel connection superchargings.
When being in high rotating speed or high load capacity when diesel engine, A arranges little turbine bypass valve, A arranges big turbine bypass valve, B arranges little turbine bypass valve, B arranges big turbine bypass valve and closes, air cock is opened with gas valve, now A arranges little turbine and arranges little compressor with A, A arranges big turbine and arranges big compressor with A, B arranges little turbine and arranges little compressor with B, B arranges big turbine and works with the B big compressor of row, realize the supercharging in parallel of the two-stage supercharging composition that then and one little turbocharger of two-stage supercharging that a little turbocharger connects is connected with a big turbocharger with a big turbocharger, when diesel engine is in high rotating speed high load capacity, in order to prevent little turbocharger from exceeding the speed limit, now need suitably to open A and arrange little turbine bypass valve and the B little turbine bypass valve of row, Some gases is passed directly to A and arranges big turbine and the B big turbine of row.
The present invention is a kind of realizes the consecutive pressurization system that multi-mode switches, including charge air cooler, A row bypass pipe, B row bypass pipe after charge air cooler, little compressor after diesel engine, the A little turbine of row, the A little compressor of row, the A big turbine of row, the A big compressor of row, the B little turbine of row, the B little compressor of row, the B big turbine of row, the B big compressor of row, exhaust main, inlet manifold, the B little turbine bypass valve of row, the B big turbine bypass valve of row, the A little turbine bypass valve of row, A row big turbine bypass valve, air cock, gas valve, big compressor.nullDiesel engine both sides are connected with inlet manifold and exhaust main respectively，The Two Stage Turbocharging System that the big turbocharger that the little turbocharger that A row pressure charging system is made up of an A little turbine of row and the A little compressor of row forms with an A big turbine of row and the A big compressor of row forms after connecting，A arranges the entrance of little turbine and is connected with exhaust main，A arranges the outlet of little turbine and is connected with the A entrance arranging big turbine，A arranges the outlet of big turbine and communicates with atmospheric environment，To be discharged in atmospheric environment，And it is in parallel with A row bypass pipe that A arranges little turbine，It is in parallel with A row bypass pipe that A arranges big turbine，On A row bypass pipe, A arranges and is respectively provided with the A little turbine bypass valve of row and the A big turbine bypass valve of row on the position that little turbine is corresponding with the A big turbine of row，A arranges big compressor inlet and communicates with atmospheric environment，A arranges big blower outlet and is connected with the A little compressor inlet of row，Centre is provided with charge air cooler after big compressor，A arranges little blower outlet charge air cooler after too small compressor and is connected with inlet manifold；nullThe Two Stage Turbocharging System that the big turbocharger that the little turbocharger that B row pressure charging system is made up of a B little turbine of row and the B little compressor of row forms with a B big turbine of row and the B big compressor of row forms after connecting，B arranges the entrance of little turbine and is connected with exhaust main，Arrange at B and a gas valve is installed before little turbine inlet，B arranges the outlet of little turbine and is connected with the B entrance arranging big turbine，B arranges the outlet of big turbine and communicates with atmospheric environment，To be discharged in atmospheric environment，And it is in parallel with B row bypass pipe that B arranges little turbine，It is in parallel with B row bypass pipe that B arranges big turbine，On B row bypass pipe, B arranges and is respectively provided with the B little turbine bypass valve of row and the B big turbine bypass valve of row on the position that little turbine is corresponding with the B big turbine of row，B arranges big compressor inlet and communicates with atmospheric environment，B arranges big blower outlet and is connected with the B little compressor inlet of row，Centre is provided with charge air cooler after big compressor，B arranges charge air cooler after little blower outlet first passes through little compressor and is connected with inlet manifold after air cock.
Claims (3)
- null1. realize the consecutive pressurization system of multi-mode switching，It is characterized in that: include diesel engine、Exhaust main、Inlet manifold、A row pressure charging system、B row pressure charging system，Diesel engine is connected with inlet manifold and exhaust main respectively，Described A row pressure charging system includes A and arranges little turbocharger and the A big turbocharger of row，B row pressure charging system includes B and arranges little turbocharger and the B big turbocharger of row，A arranges the A of little turbocharger and arranges the entrance of little turbine by A row exhaust branch pipe connection exhaust main，B arranges the B of little turbocharger and arranges the entrance of little turbine by B row exhaust branch pipe connection exhaust main，A row exhaust branch pipe is connected by communicating exhaust gas pipe with B row exhaust branch pipe，The B of outlet and the B little turbocharger of row that A arranges the A little compressor of row of little turbocharger is arranged the outlet of little compressor and is connected by compressor communicating pipe，Compressor communicating pipe connection inlet manifold，A arranges the outlet of little turbine and arranges the little turbine outlet pipe connection A entrance arranging the A big turbine of row of big turbocharger by A，A arranges big turbine and arranges big turbine outlet pipe connection air by A，A row exhaust branch pipe is arranged big turbine outlet pipe with A and is connected by A row bypass pipe，A row bypass pipe arranges little turbine outlet pipe with A and is connected，The outlet of the entrance of the A little compressor of row and the A big compressor of row of the A big turbocharger of row arranges big blower outlet pipe by A and is connected，A arranges big compressor connection air，B arranges the outlet of little turbine and arranges the little turbine outlet pipe connection B entrance arranging the B big turbine of row of big turbocharger by B，B arranges big turbine and arranges big turbine outlet pipe connection air by B，B row exhaust branch pipe is arranged big turbine outlet pipe with B and is connected by B row bypass pipe，B row bypass pipe arranges little turbine outlet pipe with B and is connected，The outlet of the entrance of the B little compressor of row and the B big compressor of row of the B big turbocharger of row arranges big blower outlet pipe by B and is connected，B arranges big compressor connection air.
- 2. the consecutive pressurization system realizing multi-mode switching according to claim 1, it is characterized in that: compressor installs air cock on communicating pipe, B row exhaust branch pipe is installed gas valve, A row bypass pipe is respectively mounted A and arranges little turbine bypass valve and the A big turbine bypass valve of row, B row bypass pipe is respectively mounted B and arranges little turbine bypass valve and the B big turbine bypass valve of row.
- 3. the consecutive pressurization system realizing multi-mode switching according to claim 1 and 2, it is characterized in that: charge air cooler after compressor communicating pipe upper installation the first little compressor after the A little blower outlet of row, charge air cooler after compressor communicating pipe upper installation the second little compressor after the B little blower outlet of row, A arranges and installs charge air cooler after the first big compressor on little blower outlet pipe, and the B little blower outlet pipe of row is installed charge air cooler after second largest compressor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060975A (en) * | 2016-11-09 | 2018-05-22 | 福特环球技术公司 | For the waste gate of engine system |
| CN108952983A (en) * | 2018-08-28 | 2018-12-07 | 河南柴油机重工有限责任公司 | A kind of High speed and heavy duty diesel engine sequential pressurizing control system |
| CN111336004A (en) * | 2020-03-18 | 2020-06-26 | 天津大学 | Two-stage turbocharging system and method capable of controlling connection mode |
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