CN109322736A - A kind of two stage turbocharging system - Google Patents
A kind of two stage turbocharging system Download PDFInfo
- Publication number
- CN109322736A CN109322736A CN201811520947.XA CN201811520947A CN109322736A CN 109322736 A CN109322736 A CN 109322736A CN 201811520947 A CN201811520947 A CN 201811520947A CN 109322736 A CN109322736 A CN 109322736A
- Authority
- CN
- China
- Prior art keywords
- pressure stage
- turbine
- lower pressure
- bypass pipe
- turbocharger
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
Abstract
The present invention provides a kind of two stage turbocharging systems, including the hiigh pressure stage turbocharger and lower pressure stage turbocharger, lower pressure stage turbine bypass pipe by turbine connecting tube connection of just arbitrarily downgrading, lower pressure stage turbine bypass pipe one end is connected to turbine connecting tube of just arbitrarily downgrading, and the other end is connected to the turbine rear end of lower pressure stage turbocharger.Compared with the existing technology, present invention has the advantage that the present invention increases lower pressure stage turbine bypass pipe between turbine of just arbitrarily downgrading, combustion gas a part of hiigh pressure stage turbine outlet enters lower pressure stage turbine acting, after a part is directly bypassed to lower pressure stage turbine.
Description
Technical field
The invention belongs to turbocharging technology fields, more particularly, to a kind of two stage turbocharging system.
Background technique
Turbocharger is to improve engine charge density using the energy of engine discharge exhaust gas, since pressurization is started
The characteristics of high power of machine, low oil consumption, low emission, on the engine using quite extensively.Two Stage Turbocharging System is to adapt at present
Maximum discharge requirement, small-sized high-power output engine gas system scheme, can using the boost pressure after two-stage supercharging
It increasing substantially, each independent plenums device can work in the working region of greater efficiency, when two boosters work, hair
Motivation range of flow is widened significantly, and the raising of high pressure ratio operating condition boost pressure is that single stage supercharging is unapproachable, can be met very well
Diesel engine improves power and meets the needs of discharge.
But when low engine speed, hiigh pressure stage boost pressure specific gravity is larger, when high engine speeds, low-pressure stage boost pressure
Specific gravity is larger, if to realize the Optimum Matching of Two Stage Turbocharging System and engine within the scope of full working scope, needs to increase second level
Distribution is adjusted in the height of pressure system pressure ratio of arbitrarily downgrading.
Summary of the invention
In view of this, the present invention is directed to propose a kind of two stage turbocharging system, more preferably to solve Two Stage Turbocharging System height
The distribution of low-pressure stage pressure ratio.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of two stage turbocharging system, including by just arbitrarily downgrade turbine connecting tube connection hiigh pressure stage turbocharger and
Lower pressure stage turbocharger, lower pressure stage turbine bypass pipe, lower pressure stage turbine bypass pipe one end are connected to the turbine company that just arbitrarily downgrades
Adapter tube, the other end are connected to the turbine rear end of lower pressure stage turbocharger.
Preferably, the caliber of the lower pressure stage turbine bypass pipe is calculated according to engine booster matching properties.
Compared with the existing technology, present invention has the advantage that
The present invention increases lower pressure stage turbine bypass pipe, the combustion gas one of hiigh pressure stage turbine outlet between turbine of just arbitrarily downgrading
Part enters lower pressure stage turbine and does work, after a part is directly bypassed to lower pressure stage turbine.
After the invention patent structure, when low engine speed, hiigh pressure stage turbine back-pressure can be reduced, it is total to improve engine
Pressure；When high engine speeds, pass through lower pressure stage turbine bypass pipe, it is possible to reduce low-pressure stage boost pressure, by low-pressure stage booster
Revolving speed controls within the allowable range.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is two stage turbocharging system structure chart described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of two stage turbocharging system, as shown in Figure 1, including the hiigh pressure stage being connected to by turbine connecting tube 2 of just arbitrarily downgrading
Turbocharger 1 and lower pressure stage turbocharger 4 further include lower pressure stage turbine bypass pipe 3, the lower pressure stage turbine bypass pipe 3
One end is connected to turbine connecting tube 2 of just arbitrarily downgrading, and the other end is connected to the turbine rear end of lower pressure stage turbocharger 4.
The caliber of the lower pressure stage turbine bypass pipe 3 is calculated according to engine booster matching properties.
It when engine operation, is vented after hiigh pressure stage turbocharger 1, a part is by turbine connecting tube of just arbitrarily downgrading
2, it does work subsequently into lower pressure stage turbocharger 4, another part directly passes through lower pressure stage turbine bypass pipe 3 and is discharged to low-pressure stage whirlpool
The turbine rear end for taking turns booster 4 can effectively adjust turbine power distribution of just arbitrarily downgrading.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of two stage turbocharging system, including hiigh pressure stage turbocharger by turbine connecting tube connection of just arbitrarily downgrading and low
It arbitrarily downgrades turbocharger, it is characterised in that: further include lower pressure stage turbine bypass pipe, the connection of lower pressure stage turbine bypass pipe one end
Height is arbitrarily downgraded turbine connecting tube, and the other end is connected to the turbine rear end of lower pressure stage turbocharger.
2. a kind of two stage turbocharging system according to claim 1, it is characterised in that: the lower pressure stage turbine bypass pipe
Caliber calculated according to engine booster matching properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520947.XA CN109322736A (en) | 2018-12-12 | 2018-12-12 | A kind of two stage turbocharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520947.XA CN109322736A (en) | 2018-12-12 | 2018-12-12 | A kind of two stage turbocharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109322736A true CN109322736A (en) | 2019-02-12 |
Family
ID=65256723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811520947.XA Pending CN109322736A (en) | 2018-12-12 | 2018-12-12 | A kind of two stage turbocharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322736A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297102A (en) * | 1999-11-17 | 2001-05-30 | 五十铃自动车株式会社 | Turbocharger system for diesel engine |
| CN1737346A (en) * | 2005-05-12 | 2006-02-22 | 上海交通大学 | Adjustable high boost system with structure of series-parallel connection of turbochargers in different size |
| CN101310099A (en) * | 2005-11-18 | 2008-11-19 | 五十铃自动车株式会社 | Two-stage supercharging system for internal combustion engine |
| CN101598343A (en) * | 2009-07-01 | 2009-12-09 | 哈尔滨工程大学 | Adjustable pressurization system of serial-parallel boilers of big and small turbochargers |
| JP2012062823A (en) * | 2010-09-16 | 2012-03-29 | Isuzu Motors Ltd | Electric turbo system |
| CN104675511A (en) * | 2013-09-23 | 2015-06-03 | 通用汽车环球科技运作有限责任公司 | Two-stage Turbocharger System |
| CN108167074A (en) * | 2017-11-22 | 2018-06-15 | 中国北方发动机研究所(天津) | A kind of Two Stage Turbocharging System height is arbitrarily downgraded booster support construction |
-
2018
- 2018-12-12 CN CN201811520947.XA patent/CN109322736A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297102A (en) * | 1999-11-17 | 2001-05-30 | 五十铃自动车株式会社 | Turbocharger system for diesel engine |
| CN1737346A (en) * | 2005-05-12 | 2006-02-22 | 上海交通大学 | Adjustable high boost system with structure of series-parallel connection of turbochargers in different size |
| CN101310099A (en) * | 2005-11-18 | 2008-11-19 | 五十铃自动车株式会社 | Two-stage supercharging system for internal combustion engine |
| CN101598343A (en) * | 2009-07-01 | 2009-12-09 | 哈尔滨工程大学 | Adjustable pressurization system of serial-parallel boilers of big and small turbochargers |
| JP2012062823A (en) * | 2010-09-16 | 2012-03-29 | Isuzu Motors Ltd | Electric turbo system |
| CN104675511A (en) * | 2013-09-23 | 2015-06-03 | 通用汽车环球科技运作有限责任公司 | Two-stage Turbocharger System |
| CN108167074A (en) * | 2017-11-22 | 2018-06-15 | 中国北方发动机研究所(天津) | A kind of Two Stage Turbocharging System height is arbitrarily downgraded booster support construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016107469A1 (en) | Engine and air inlet system thereof | |
| CN109372662A (en) | A kind of exhaust gas bypass auxiliary pressurization system | |
| CN103615309A (en) | All-work-condition adjustable two-stage pressurizing system of internal combustion engine | |
| CN105464769A (en) | Double-channel power turbine system and control method thereof | |
| CN103352754A (en) | Multi-mode large and small turbocharger diesel engine sequential supercharging structure | |
| CN108412606A (en) | A kind of vehicle air compressor energy-saving pressurized system | |
| CN109339938A (en) | Three condition two-stage consecutive pressurization system and its control method | |
| CN101413423A (en) | Module type multifunctional pulse conversion turbocharging system | |
| RU2635425C1 (en) | Device to control turbocharged internal combustion engine | |
| CN102678282A (en) | Regulating system with air intake and discharge combined mechanism | |
| CN109322736A (en) | A kind of two stage turbocharging system | |
| US20040050047A1 (en) | Low speed turbo EGR | |
| CN108087110A (en) | A kind of Two Stage Turbocharging System turbine by-pass self-adaptive regulating | |
| CN104533599B (en) | The two-stage adjustable pressurization system of internal combustion engine | |
| CN102678272A (en) | Regulating device for air intake and discharge flow of supercharger | |
| CN110410208A (en) | A kind of booster and air compressor machine United Assistant Brake system | |
| CN102777256B (en) | Impeller gas-compression gas compressor | |
| CN105508035A (en) | Supercharged diesel engine multi-mode switch supercharging structure and method | |
| CN205349509U (en) | Compound pressure intensifying structure in succession of supercharged diesel engine | |
| CN214698018U (en) | Exhaust pulse energy utilization system and turbocharger thereof | |
| CN203488250U (en) | Two-stage turbo-supercharger adopting variable-cross-section supercharger | |
| CN206309471U (en) | A kind of two-stage supercharging device of engine | |
| CN207813733U (en) | A kind of two-stage turbocharger of the double membranous cochleas of twin turbines | |
| CN108167074A (en) | A kind of Two Stage Turbocharging System height is arbitrarily downgraded booster support construction | |
| CN205349510U (en) | Supercharged diesel engine pressure intensifying structure in succession that multi -stage is adjustable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |