CN109209623A - Improve the engine of responding ability - Google Patents
Improve the engine of responding ability Download PDFInfo
- Publication number
- CN109209623A CN109209623A CN201811333452.6A CN201811333452A CN109209623A CN 109209623 A CN109209623 A CN 109209623A CN 201811333452 A CN201811333452 A CN 201811333452A CN 109209623 A CN109209623 A CN 109209623A
- Authority
- CN
- China
- Prior art keywords
- engine
- fuel injector
- booster
- electric
- responding ability
- 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.)
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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
- F02B37/20—Control of the pumps by increasing exhaust energy, e.g. using combustion chamber by after-burning
-
- 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
-
- 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)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of engines for improving responding ability.The engine of the raising responding ability includes: engine body, common-rail injection system and booster, the common-rail injection system includes: common rail pipe, high-pressure oil pump, pressure sensor, electric-controlled fuel injector and ECU, the high-pressure oil pump, pressure sensor and ECU form closed-loop system, the ECU and electric-controlled fuel injector control connect, and control the distributive value size of electric-controlled fuel injector；The electric-controlled fuel injector all has multi-injection ability, and the certain fuel oil of spray burns away to promote tail gas energy after fuel injector carries out in cylinder when passing through instroke；The engine for improving responding ability further include: be laid in the post heating device of booster upstream, the tail gas energy of booster is entered when promoting low load.The engine of the raising responding ability only can further promote engine in the low output power for carrying response initial stage with the fuel for increasing penetrating, effectively promote the low load responding ability of engine.
Description
Technical field
The present invention relates to engine arts, especially with regard to a kind of engine for improving responding ability.
Background technique
The level-one conventional exhaust gas turbocharging technology that engine with supercharger largely uses at present, by the hand for increasing air inflow
Section, can effectively improve the output power of engine.But the technology is substantially only in certain section of particular job region (in typically
High load) in the case of can just play the role of super charge.In low load (such as 0% load), because exhaust gas temperature is low, the energy of carrying
Amount is insufficient, and supercharger speed is very low, can not play pressurization, or even can hinder air inlet.At this moment load suddenly one is big to dash forward
When application of load, the short time internal supercharger original operating state of load is poor, and the air-channel system low-response of entire engine is (from load
Start, decline to engine speed, speed-regulating system response increases oil spout, is converted into energy to increased fuel combustion and enters tail
Gas rises to supercharger speed, to increased air inflow after air filter pipeline, actually enters and participates in combustion in engine cylinder
Burn, further increase tail gas energy promoted booster effect, whole process not promoted one link of booster can be promoted it is whole
Body response speed, it is contemplated that some factors such as length of pipe influence, the response under conventional stage exhaust turbine pressuring technology scheme
There is the bottleneck that can not be promoted in speed), air inflow is limited (air inflow when far below middle high load).At this moment the fuel being added is only
Can and these far fewer than the high air effect for carrying operating condition generate the power output of certain increment, and more fuel are added and also can not
The engine short time is set to generate bigger power output.When the power of disposable impact is more than 50% or more external characteristics, just very
Be easy to cause it is increased be short of power, revolving speed is decreased until that final engine is suppressed extremely.
To improve responding ability of the engine in low load, scheme common at present has: a, variable cross section supercharging technology, more
Grade supercharging technology, engine driven supercharging technology etc., the core of such technology is that the working region of booster is made to be reduced to low load region, right
Engine carries out low load pressurization；B, the scheme that booster is influenced in low load is excluded using the non pressurized technology such as natural aspiration；c,
The scheme of responding ability is in a disguised form improved with low-load with high-power engine.
The shortcomings that scheme of responding ability of the existing raising engine in low load, is:
1, variable cross section supercharging technology, multi-stage booster technology, engine driven supercharging technology etc., this kind of technology cause pressure charging system multiple
Miscellaneous degree rises, cost increase, reliability decrease.
2, influence of the booster in low load, the pressurization of same nominal power are excluded using the non pressurized technology such as natural aspiration
Type can accomplish the better oil consumption of more small displacement, and this kind of route causes engine efficiency low, purchase cost and operating cost
It is all higher.
3, responding ability in a disguised form is improved with huge discharge high-power engine band low-load, this route is also to cause to start
Machine volume weight increases, inefficiency, the more high multiple shortcomings of purchase cost.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of engine of simple and reasonable raising responding ability, raising responses
The engine of ability only can further promote engine in the low output power for carrying response initial stage with the fuel for increasing penetrating, have
Effect promotes the low load responding ability of engine.
To achieve the above object, the present invention provides a kind of engines for improving responding ability, comprising: engine body,
Common-rail injection system and booster, the common-rail injection system include: common rail pipe, high-pressure oil pump, pressure sensor, electronic control injection
Device and ECU, the high-pressure oil pump, pressure sensor and ECU form closed-loop system, and the ECU and electric-controlled fuel injector control connect,
Control the distributive value size of electric-controlled fuel injector；The electric-controlled fuel injector all has multi-injection ability, sprays when passing through instroke
The certain fuel oil of spray burns away to promote tail gas energy after oily device carries out in cylinder；The engine for improving responding ability also wraps
It includes: being laid in the post heating device of booster upstream, the tail gas energy of booster is entered when promoting low load.
In a preferred embodiment, the upstream of booster is connected with exhaust pipe, and the post heating device is laid in row
On tracheae.
In a preferred embodiment, the upstream of booster is connected with exhaust pipe, the post heating device by adapter tube
It is laid on adapter tube.
In a preferred embodiment, post heating device is electric calorifie installation or oil spout heating device.
Compared with prior art, the engine according to the present invention for improving responding ability has the following beneficial effects: that this is mentioned
The tail gas energy for entering booster when the engine of highly-responsive is by promoting low load, makes booster in the low load work of engine
Also pressurization can be generated under condition, increase air inflow when low load.Gas handling system requires no complexity during loading in this way
Response process, only with increase spray into fuel can further be promoted engine it is low load response initial stage output power, have
Effect promotes the low load responding ability of engine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the engine of raising responding ability according to an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1, the specific structure of the engine according to the preferred embodiment of the present invention for improving responding ability includes:
Engine body 1, common-rail injection system 2, booster 3 and post heating device 4.Wherein, the electric-controlled fuel injector of common-rail injection system 2
All there is multi-injection ability, including the ability sprayed after instroke carries out in cylinder, fuel injector is carried out when passing through instroke
The certain fuel oil of spray, which burns away, after in cylinder can promote tail gas energy；Or post heating device 4 is laid in booster upstream.This is mentioned
The engine of highly-responsive does not simultaneously have to complicated structure come exhaust when realizing that booster working region can be changed, but making low load
Energy also meets the operating condition of booster.The air inflow of engine entire in this way (or is at least protected in the one high region that carries always
Card load front engine inlet air conditions reach high and carry region), loading procedure is not influenced substantially by gas circuit response.
Specifically, common-rail injection system 1 include: common rail pipe, high-pressure oil pump, pressure sensor, electric-controlled fuel injector and
ECU.Wherein, high-pressure oil pump, pressure sensor and ECU form closed-loop system, each other by the generation for spraying pressure and course of injection
A kind of distinct fuel system.High pressure fuel is transported to common rail pipe (public fuel feeding rail) by high-pressure oil pump, by altogether
Oil pressure in rail pipe realizes accurate control, keeps the pressure size of fuel oil and the revolving speed of engine in oily rail unrelated.It can be significantly
Reduce Fuel Injection Mechanism of Diesel Engine pressure with the variation phenomenon of engine speed, overcomes the defect of conventional diesel engine fuel pressure.ECU with
Electric-controlled fuel injector control connection, controls the distributive value size of electric-controlled fuel injector, depends on oily rail (fuel rail) pressure and electromagnetism
The length of valve opening time.Common rail electric-controlling fuel injection technic is that relative constant height is directly or indirectly formed by common rail
Compression ignition oil, is sent to each electric-controlled fuel injector respectively, and the unlatching of the high-speed electromagnetic valve by means of being integrated on each fuel injector with
Closure, timing, quantitatively control fuel injector is sprayed to the oil mass of burning chamber of diesel engine, to guarantee that diesel engine reaches good mist
Change, optimal air-fuel ratio, the optimal time of ignition, enough firing energies and least disposal of pollutants.
Booster 3 is turbocharger, increases air inflow by compressed air.It is the exhaust gas using engine discharge
Inertia impulsive force pushes the indoor turbine of turbine, and turbine drives coaxial impeller again, impeller force feed is sent by air cleaner pipeline
The air come is allowed to pressurization and enters cylinder.When engine speed increases, the also synchronous increase of the exhaust gas velocity of discharge and secondary speed,
Impeller just compresses more air and enters cylinder, and the pressure and density of air increase more fuel that can burn, increase accordingly
The revolving speed of fuel quantity and adjustment engine, so that it may increase the output power of engine.
Post heating device 4 is laid in the upstream of booster 3, and the tail gas energy of booster is entered when promoting low load.
Preferably, the upstream of booster 3 is connected with exhaust pipe, and post heating device 4 is laid on exhaust pipe.
Preferably, the upstream of booster 3 is connected with exhaust pipe by adapter tube, and post heating device 4 is laid on adapter tube.
Preferably, post heating device 4 is electric calorifie installation or oil spout heating device.
Spray after being realized in the cylinder of engine body 1 by control common-rail injection system 1, enters booster when promoting low load
Tail gas energy, wherein the electric-controlled fuel injector of common-rail injection system all has multi-injection ability, be included in instroke progress
The ability sprayed after in cylinder, the certain fuel oil of spray, which burns away, after fuel injector carries out in cylinder when passing through instroke can promote tail gas energy
Amount.
Or it is mentioned by increasing post heating device 4 on the adapter tube on exhaust pipe, between exhaust pipe and booster to realize
Enter the tail gas energy of booster when rising low load.Only increase tail gas energy will not influence engine working stroke substantially, also just not
It will affect the overall operation state of engine.The energy promoted simultaneously is not used in engine acting output, is only used to push pressurization
Other energy of device super charge, the fuel sprayed later or consumption are also seldom.By increasing conventional pressurization type in low load
Tail gas energy come promoted booster work operating condition scheme, can in less change, or even do not change conventional stage exhaust gas increasing
Achieve the purpose that be promoted under conditions of hydraulic motor hardware under the low load of engine and loads responding ability.
To sum up, the engine of the raising responding ability by promoting low load when enter the tail gas energy of booster, make to be pressurized
Device can also generate pressurization under the low load operating condition of engine, increase air inflow when low load.So during loading into
Gas system requires no complicated response process, only can further promote engine with the fuel for increasing penetrating and respond in low load
The output power at initial stage effectively promotes the low load responding ability of engine.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of engine for improving responding ability characterized by comprising engine body, common-rail injection system and pressurization
Device, the common-rail injection system include: common rail pipe, high-pressure oil pump, pressure sensor, electric-controlled fuel injector and ECU, the high pressure oil
Pump, pressure sensor and ECU form closed-loop system, and the ECU and electric-controlled fuel injector control connect, and control the spray of electric-controlled fuel injector
Oil mass size；The electric-controlled fuel injector all has multi-injection ability, spray one after fuel injector carries out in cylinder when passing through instroke
Determine fuel oil to burn away to promote tail gas energy；The engine for improving responding ability further include: be laid in booster upstream
Post heating device, the tail gas energy of booster is entered when promoting low load.
2. improving the engine of responding ability as described in claim 1, which is characterized in that the upstream of the booster is connected with
Exhaust pipe, the post heating device are laid on exhaust pipe.
3. improving the engine of responding ability as claimed in claim 2, which is characterized in that the upstream of the booster is by connecing
Pipe is connected with exhaust pipe, and the post heating device is laid on adapter tube.
4. improving the engine of responding ability as described in claim 1, which is characterized in that the post heating device is electric heating dress
It sets or oil spout heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333452.6A CN109209623A (en) | 2018-11-09 | 2018-11-09 | Improve the engine of responding ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333452.6A CN109209623A (en) | 2018-11-09 | 2018-11-09 | Improve the engine of responding ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209623A true CN109209623A (en) | 2019-01-15 |
Family
ID=64995800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811333452.6A Pending CN109209623A (en) | 2018-11-09 | 2018-11-09 | Improve the engine of responding ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458440A (en) * | 2021-12-28 | 2022-05-10 | 中国北方发动机研究所(天津) | Cross afterburning exhaust gas turbocharging system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537483A (en) * | 1939-03-18 | 1941-06-24 | Walter Schenker | Improvements in or relating to internal combustion engines operating with supercharging |
| JP2000345889A (en) * | 1999-06-02 | 2000-12-12 | Mitsubishi Motors Corp | Cylinder injection-type internal combustion engine |
| US20030051466A1 (en) * | 2001-08-16 | 2003-03-20 | Michael Baeuerle | Method and arrangement for operating an internal combustion engine |
| CN102947563A (en) * | 2010-06-21 | 2013-02-27 | 丰田自动车株式会社 | Exhaust heating apparatus |
| US20160341115A1 (en) * | 2015-05-20 | 2016-11-24 | Volvo Car Corporation | Turbocharger system |
| CN208982166U (en) * | 2018-11-09 | 2019-06-14 | 广西玉柴机器股份有限公司 | Improve the engine of responding ability |
-
2018
- 2018-11-09 CN CN201811333452.6A patent/CN109209623A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537483A (en) * | 1939-03-18 | 1941-06-24 | Walter Schenker | Improvements in or relating to internal combustion engines operating with supercharging |
| JP2000345889A (en) * | 1999-06-02 | 2000-12-12 | Mitsubishi Motors Corp | Cylinder injection-type internal combustion engine |
| US20030051466A1 (en) * | 2001-08-16 | 2003-03-20 | Michael Baeuerle | Method and arrangement for operating an internal combustion engine |
| CN102947563A (en) * | 2010-06-21 | 2013-02-27 | 丰田自动车株式会社 | Exhaust heating apparatus |
| US20160341115A1 (en) * | 2015-05-20 | 2016-11-24 | Volvo Car Corporation | Turbocharger system |
| CN208982166U (en) * | 2018-11-09 | 2019-06-14 | 广西玉柴机器股份有限公司 | Improve the engine of responding ability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458440A (en) * | 2021-12-28 | 2022-05-10 | 中国北方发动机研究所(天津) | Cross afterburning exhaust gas turbocharging system |
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| PB01 | Publication | ||
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Application publication date: 20190115 |