CN100510343C - Gas flow guiding composite pulse conversion turbo supercharging system - Google Patents
Gas flow guiding composite pulse conversion turbo supercharging system Download PDFInfo
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- CN100510343C CN100510343C CNB2007100476751A CN200710047675A CN100510343C CN 100510343 C CN100510343 C CN 100510343C CN B2007100476751 A CNB2007100476751 A CN B2007100476751A CN 200710047675 A CN200710047675 A CN 200710047675A CN 100510343 C CN100510343 C CN 100510343C
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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
Abstract
The present invention belongs to the field of internal combustion engine technology, and is especially one kind of gas guiding composite pulse converting turbocharging system comprising cylinders, exhaust branch pipes, two pulse exhaust pipes, one Y-shaped joint, one modular pulse conversion exhaust pipe, one turbocharger and guide plates. The cylinder far from the turbocharger with scavenging interference is connected to the inlet of the turbocharger through two pulse exhaust pipes, one Y-shaped joint and one modular pulse conversion exhaust pipe, while the other cylinders are connected through separate exhaust branch pipes to the modular pulse conversion exhaust pipe. Guide plates are set in the joints between the exhaust branch pipes and the modular pulse conversion exhaust pipe to control the ejection to the gas flows and the emission of the pressure wave. The present invention is suitable for internal combustion engine of different cylinder numbers.
Description
Technical field
The present invention relates to a kind of internal combustion engine turbocharging system, particularly a kind of multi-cylinder engine exhaust energy utilizes the gas flow guiding composite pulse conversion turbo supercharging system that disturbs with anti-scavenging, belongs to technical field of internal combustion engines.
Background technique
Existing internal combustion engine turbocharging system has level pressure, pulse, pulses switch, module type pulse conversion etc.The outlet pipe size of level pressure turbo charge system is constant substantially than ambassador's exhaust pressure, avoids disturbing because of the multi-cylinder exhaust causes scavenging, and the turbine charge air flow is stable, the turbine efficiency height, but the exhaust energy loss is big, low operating mode and bad dynamic performance.Pulse turbocharging system is because of the turbine air inlet of pulsing, and turbine efficiency is not as the level pressure turbo charge system, but can make full use of the pulsation energy of exhaust, and low operating mode and dynamic performance are good, and being fit to 6 cylinders, 12 cylinders etc. is the application of multiple internal-combustion engine with 3.To the cylinder number is not 3 to be the internal-combustion engine of multiple, the turbo charge system that normal employing has pulse converter reduces because the turbine part inlet loss that the turbine multiple entry is caused and the windage loss of part outlet pipe turbine that emptying causes, and the reducing by pulse converter to be suppressing between institute's each cylinder of townhouse tracheae pressure wave to the interference of scavenging, but increased the exhaust energy loss.Module type pulse conversion turbocharging system (being called for short the MPC system) is to link to each other with each exhaust branch pipe than the little a lot of exhaust manifold of level pressure turbo charge system volume by one, each exhaust branch pipe is made the scavenging that reducing suppresses between each cylinder and is disturbed, there be the exhaust pulsation capacity usage ratio close with pulse turbocharging system in this system, the turbine efficiency close with the level pressure turbo charge system arranged, can take into account high low-load performance preferably, but also have bigger scavenging to disturb sometimes.
When the module type pulse conversion turbocharging system uses in some multi-cylinder engine especially 8 cylinder machines, change the firing order of internal-combustion engine howsoever, always the scavenging of the contiguous cylinder in downstream is formed bigger interference at pressure wave near some cylinder of exhaust manifold closed end, cause each cylinder scavenging inhomogeneous, cause that relevant cylinder row temperature abnormality rises, make the delivery temperature difference of each cylinder of internal-combustion engine not meet the demands degradation.
In the prior art, John H.Weaving is at " Internal Combustion EngineeringScience and Technology " (Elsevier Applied Science, London and New York, 1990) proposed in the book to disturb, in the exhaust manifold that has between the scavenging interference cylinder, established a slice restricting orifice and be used for attenuate pressure wave for the scavenging that reduces module type pulse converting system some cylinders when some multi-cylinder engine are used; Or further dwindle the exhaust branch pipe reducing that has scavenging to disturb cylinder, to suppress the interference to scavenging, these two kinds of methods all make restriction loss strengthen.The patent No. is CN2312331Y, name is called the utility model patent of mixed pulse converter vent systems, has proposed pulse converter two-part that MPC outlet pipe that eight cylinders and V-type 16 cylinder four-stroke diesel engine using are made of four cylinders and four cylinders constitute and has formed vent systems.This system can make full use of the exhaust pulses energy, reduces the pumping work loss, improves turbine efficiency, and delivery temperature is even, but owing to link to each other with the MPC system by pulse converter, the reducing of pulse converter also causes certain restriction loss.
Summary of the invention
In order to overcome the deficiency and the defective of the existing turbo charge system of some multi-cylinder engine, the invention provides and a kind ofly can suppress scavenging and disturb and to reduce the gas flow guiding composite pulse conversion turbo supercharging system that restriction loss improves turbine efficiency again.
The present invention is achieved through the following technical solutions: the present invention includes cylinder, exhaust branch pipe, two pulse outlet pipes, breeches joint, module type pulse conversion exhaust conduit, turbosupercharger and guide plates.Two input ends of breeches joint are the increaser that equal uniform section pipe of sectional area or sectional area enlarge gradually, firing order according to internal-combustion engine will be connected with two input ends of breeches joint by two pulse outlet pipes respectively away from the cylinder that the turbosupercharger end has scavenging to disturb, the output terminal of breeches joint is connected with the input end of module type pulse conversion exhaust conduit, the output terminal of module type pulse conversion exhaust conduit is connected with the turbosupercharger inlet, the exhaust branch pipe that all the other each cylinders pass through separately respectively is connected with the module type pulse conversion exhaust conduit, joint at each exhaust branch pipe and module type pulse conversion exhaust conduit is provided with guide plate, and guide plate inserts in the module type pulse conversion exhaust conduit with the α angle.By of the draw emission of establishing with pressure wave of this guide plate control exhaust branch pipe to module type pulse conversion exhaust conduit air-flow.2 pulse outlet pipes can will have the bang path that disturbs the cylinder exhaust pressure wave to prolong, and make institute join the cylinder exhaust and all do not occur or do not have an obvious scavenging interference.The exhaust branch pipe that the module type pulse conversion exhaust conduit connects makes exhaust flow into the module type pulse conversion exhaust conduit with the α angle by guide plate, every cylinder exhaust all produces ejector action to module type pulse conversion exhaust conduit air-flow, be equivalent to an injection suction pump, a plurality of cylinders that the module type pulse conversion exhaust conduit is connected just be equivalent to a plurality of injection suction pumps series connection to breeches joint outlet aspirate, the pressure of breeches joint outlet is descended, module type pulse cylinder number that conversion exhaust conduit joins the more, pressure descends more obviously, and breeches joint disturbs without the scavenging that reducing just can suppress the continuous cylinder of two pulse outlet pipes of breeches joint; Because each exhaust branch pipe air-flow to the ejector action of module type pulse conversion exhaust conduit air-flow, makes each exhaust branch pipe keep having improved the exhaust energy utilization ratio at a high speed to the turbine inlet air flow.Because of the enhancing of guide plate, can suppress the scavenging interference of nearly closed end cylinder no longer fully by reducing, thereby make cylinder pump qigong loss little ejector action.
Beneficial effect of the present invention: gas flow guiding composite pulse conversion turbo supercharging system of the present invention is applicable to multi-cylinder engines such as 4,5,7,8,9,10 cylinders, can utilize exhaust pulsation energy fully, better transient state and acceleration performance are arranged, simple in structure, the pumping work loss is little, the turbine efficiency height can avoid big scavenging to disturb.
Description of drawings
Fig. 1 is the structural representation that turbo charge system of the present invention is used for first kind of embodiment of 8 cylinder diesels.
Fig. 2 is the structural representation that turbo charge system of the present invention is used for second kind of embodiment of 8 cylinder diesels.
1A cylinder among the figure, 2B cylinder, 3C cylinder, 4D cylinder, 5E cylinder, 6F cylinder, 7G cylinder, 8H cylinder, 9 exhaust branch pipes, 10A pulse outlet pipe, 11B pulse outlet pipe, 12Y type joint, 13 module type pulse conversion exhaust conduits, 14 turbosupercharger, 15 guide plates.
Embodiment
Below in conjunction with accompanying drawing the concrete enforcement that the present invention is used for 8 cylinder diesels is further described.
As shown in Figure 1, the present invention includes A cylinder 1, B cylinder 2, C cylinder 3, D cylinder 4, E cylinder 5, F cylinder 6, G cylinder 7, H cylinder 8, exhaust branch pipe 9, A pulse outlet pipe 10, B pulse outlet pipe 11, breeches joint 12, module type pulse conversion exhaust conduit 13, turbosupercharger 14, guide plate 15.Two input ends of breeches joint 12 are the increaser that equal uniform section pipe of sectional area or sectional area enlarge gradually, firing order according to internal-combustion engine will be connected with two input ends of breeches joint 12 with B pulse outlet pipe 11 by A pulse outlet pipe 10 respectively with B cylinder 2 away from the A cylinder 1 that the turbosupercharger section has scavenging to disturb, the output terminal of breeches joint 12 is connected with the input end of module type pulse conversion exhaust conduit 13, the output terminal of module type pulse conversion exhaust conduit 13 is connected with the turbosupercharger inlet, C cylinder 3, D cylinder 4, E cylinder 5, F cylinder 6, G cylinder 7, the exhaust branch pipe 9 that H cylinder 8 passes through separately respectively is connected with module type pulse conversion exhaust conduit 13, joint at each exhaust branch pipe 9 and module type pulse conversion exhaust conduit 13 is provided with guide plate 15, guide plate 15 inserts in the module type pulse conversion exhaust conduit 13 with the α angle, 20 °≤α≤45 °.Guide plate 15, exhaust branch pipe 9 and affixed being integral of module type pulse conversion exhaust conduit 13 threes.
The exhaust of A cylinder 1 and B cylinder 2 flows into module type pulse conversion exhaust conduit 13 by A pulse outlet pipe 10, B pulse outlet pipe 11 and breeches joint 12 respectively, while C cylinder 3, D cylinder 4, E cylinder 5, F cylinder 6, G cylinder 7, the exhaust of H cylinder 8 flows into module type pulse conversion exhaust conduit 13 by each exhaust branch pipe 9 and guide plate 15, promote that by injection gas quickens to flow in the pipe, institute connects cylinder number the more the injection effect heal obviously, breeches joint 12 is gone out interruption-forming low pressure.By to A pulse outlet pipe 10, B pulse outlet pipe 11 and module type pulse conversion exhaust conduit 13 calibers and the isoparametric design of pipe range, pressure wave reflection time and transfer strength between control impuls outlet pipe 10 and the pulse outlet pipe 11, thus the scavenging that has suppressed A pulse outlet pipe 10, B pulse outlet pipe 11 connects cylinder is disturbed.The exhaust of each cylinder imports module type pulse conversion exhaust conduit 13, make the gas high speed flow to module type pulse conversion exhaust conduit 13 centers by guide plate 15 and the reducing that exhaust branch pipe 9 constitutes, the scavenging that inhibition module type pulse conversion exhaust conduit 13 is connected between each cylinder is disturbed, make the inlet air flow of turbosupercharger 14 more stable, improve the operational efficiency of turbine.
As shown in Figure 2, A cylinder 1 links to each other with A pulse outlet pipe 10 1 ends, the other end of A pulse outlet pipe 10 links to each other with an input end of breeches joint 12, B cylinder 2 links to each other with B pulse outlet pipe 11 1 ends, C cylinder 3 is communicated with the side camber line of the other end of B pulse outlet pipe 11 by exhaust branch pipe 9, the other end of B pulse outlet pipe 11 links to each other with another input end of breeches joint 12, the output terminal of breeches joint 12 is connected with the input end of module type pulse conversion exhaust conduit 13, the output terminal of module type pulse conversion exhaust conduit 13 is connected with the turbosupercharger inlet, D cylinder 4, E cylinder 5, F cylinder 6, G cylinder 7, H cylinder 8 passes through separately respectively, and exhaust branch pipe 9 is connected with module type pulse conversion exhaust conduit 13, joint at exhaust branch pipe 9 and module type pulse conversion exhaust conduit 13 is provided with guide plate 15, and guide plate 15 inserts in the module type pulse conversion exhaust conduit 13 with the α angle, guide plate 15, exhaust branch pipe 9 and affixed being integral of module type pulse conversion exhaust conduit 13 threes.
Claims (3)
1. gas flow guiding composite pulse conversion turbo supercharging system, comprise A cylinder (1), B cylinder (2), C cylinder (3), D cylinder (4), E cylinder (5), F cylinder (6), G cylinder (7), H cylinder (8), exhaust branch pipe (9), A pulse outlet pipe (10), B pulse outlet pipe (11), module type pulse conversion exhaust conduit (13), turbosupercharger (14), it is characterized in that also comprising breeches joint (12), guide plate (15), two input ends of breeches joint (12) are the increaser that equal uniform section pipe of sectional area or sectional area enlarge gradually, A cylinder (1) is connected with two input ends of breeches joint (12) with B pulse outlet pipe (11) by A pulse outlet pipe (10) respectively with B cylinder (2), the output terminal of breeches joint (12) is connected with the input end of module type pulse conversion exhaust conduit (13), the output terminal of module type pulse conversion exhaust conduit (13) is connected with the turbosupercharger inlet, C cylinder (3), D cylinder (4), E cylinder (5), F cylinder (6), G cylinder (7), H cylinder (8) is connected with module type pulse conversion exhaust conduit (13) by each exhaust branch pipe (9) respectively, joint at each exhaust branch pipe (9) and module type pulse conversion exhaust conduit (13) is provided with guide plate (15), and guide plate (15) inserts in the module type pulse conversion exhaust conduit (13) with the α angle.
2. gas flow guiding composite pulse conversion turbo supercharging system according to claim 1 is characterized in that described α angle is: 20 °≤α≤45 °.
3. gas flow guiding composite pulse conversion turbo supercharging system according to claim 1 is characterized in that described guide plate (15), exhaust branch pipe (9) and affixed being integral of module type pulse conversion exhaust conduit (13) three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100476751A CN100510343C (en) | 2007-11-01 | 2007-11-01 | Gas flow guiding composite pulse conversion turbo supercharging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100476751A CN100510343C (en) | 2007-11-01 | 2007-11-01 | Gas flow guiding composite pulse conversion turbo supercharging system |
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| CN101149016A CN101149016A (en) | 2008-03-26 |
| CN100510343C true CN100510343C (en) | 2009-07-08 |
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| CNB2007100476751A Expired - Fee Related CN100510343C (en) | 2007-11-01 | 2007-11-01 | Gas flow guiding composite pulse conversion turbo supercharging system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936215B (en) * | 2010-08-31 | 2012-07-04 | 上海交通大学 | Turbo charging system with exhaust manifold having variable necking rate |
| CN102400757B (en) * | 2011-10-31 | 2013-05-22 | 上海交通大学 | Anti-interference module type quasi pulse turbo charging system |
| CN102705052A (en) * | 2012-06-11 | 2012-10-03 | 山东交通学院 | Module type two-stage exhaust pipe system turbocharging system |
| CN102691567A (en) * | 2012-06-11 | 2012-09-26 | 山东交通学院 | Split type secondary exhaust pipe system turbo supercharging system |
| CN106150640A (en) * | 2016-06-29 | 2016-11-23 | 中国北方发动机研究所(天津) | A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor |
| CN108019267A (en) * | 2017-11-17 | 2018-05-11 | 无锡开普动力有限公司 | Large bore engine modular exhaust gas manifold structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726084A (en) * | 1969-12-04 | 1973-04-10 | Bbc Brown Boveri & Cie | Apparatus for supercharging an internal combustion engine |
| EP0356378A2 (en) * | 1988-08-17 | 1990-02-28 | GebràDer Sulzer Aktiengesellschaft | Exhaust gas manifold of a diesel engine with 9 or 18 cylinders |
| US5463867A (en) * | 1993-12-14 | 1995-11-07 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Supercharged internal combustion engine exhaust system |
| EP0770769A1 (en) * | 1995-10-25 | 1997-05-02 | Asea Brown Boveri Ag | Exhaust conduit arrangement for a turbocharged four-stroke internal combustion engine |
| CN2312331Y (en) * | 1997-11-03 | 1999-03-31 | 上海交通大学 | Mixing type pulsation converter exhaust system |
| CN1294346C (en) * | 2004-08-04 | 2007-01-10 | 湛江海洋大学 | Variable module type impulse sapercharging device of turbocharging diesel engine |
-
2007
- 2007-11-01 CN CNB2007100476751A patent/CN100510343C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726084A (en) * | 1969-12-04 | 1973-04-10 | Bbc Brown Boveri & Cie | Apparatus for supercharging an internal combustion engine |
| EP0356378A2 (en) * | 1988-08-17 | 1990-02-28 | GebràDer Sulzer Aktiengesellschaft | Exhaust gas manifold of a diesel engine with 9 or 18 cylinders |
| US5463867A (en) * | 1993-12-14 | 1995-11-07 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Supercharged internal combustion engine exhaust system |
| EP0770769A1 (en) * | 1995-10-25 | 1997-05-02 | Asea Brown Boveri Ag | Exhaust conduit arrangement for a turbocharged four-stroke internal combustion engine |
| CN2312331Y (en) * | 1997-11-03 | 1999-03-31 | 上海交通大学 | Mixing type pulsation converter exhaust system |
| CN1294346C (en) * | 2004-08-04 | 2007-01-10 | 湛江海洋大学 | Variable module type impulse sapercharging device of turbocharging diesel engine |
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| Publication number | Publication date |
|---|---|
| CN101149016A (en) | 2008-03-26 |
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Granted publication date: 20090708 Termination date: 20111101 |