CN101205844B - Device improving air-intake of combustion engine - Google Patents
Device improving air-intake of combustion engine Download PDFInfo
- Publication number
- CN101205844B CN101205844B CN200710191391XA CN200710191391A CN101205844B CN 101205844 B CN101205844 B CN 101205844B CN 200710191391X A CN200710191391X A CN 200710191391XA CN 200710191391 A CN200710191391 A CN 200710191391A CN 101205844 B CN101205844 B CN 101205844B
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- Prior art keywords
- air
- combustion engine
- turbocharger
- jet pump
- internal combustion
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- 230000001133 acceleration Effects 0.000 abstract description 9
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 230000007812 deficiency Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The invention belongs to an internal combustion engine technical field, in particular to a device for improving air intake of internal combustion engine. The invention comprises an air inlet manifold and a first air cleaner and a turbocharger which are orderly arranged along the air intake direction of an air intake main pipe, wherein the air inlet manifold has the front end provided with a jet air pump which is connected with the turbocharger in series or in parallel and controlled by the ECU. The invention is capable of increasing the air pressure in the air inlet manifold and improving the aeration coefficient in the cylinder while in instantaneous acceleration, thereby changing the combustion conditions of the internal combustion engine at a medium and low speed, resolving the problem of the poor accelerating performance of the turbocharger at the medium and low speed, improving the output torque at the medium and low speed, optimizing the accelerating performance and greatly shortening the acceleration response time of the automobile; moreover, because the fuel is fully burned, the utilization factor of the fuel is also improved and the discharge capacity of the internal combustion engine is reduced.
Description
Technical field
The invention belongs to technical field of internal combustion engines, particularly relate to a kind of device that improves air-intake of combustion engine.
Background technique
At present, adopt supercharging technology to improve the charge density of internal-combustion engine, become one of the most effective enhancements that improves the diesel engine single-machine capacity.Existing vehicle exhaust gas turbocharger internal combustion engine, the pulse exhaust-gas turbochargers that adopt more, when internal-combustion engine during in middle low speed operating mode, the unexpected bend the throttle of vehicle, because exhaust gas flow can not be brought up to corresponding flow simultaneously and come the drive pressure mechanism of qi, cause air inlet deficiency in the short time, burn deterioration is short of power.Promptly be usually expressed as the driver when middle low speed operating mode, in the time of to put one's foot down, internal-combustion engine needs a period of time just tangible acceleration can be arranged.This reason wherein is exactly because exhaust turbine needs the time (that is, the time that the waste gas flow velocity increases gradually) of a response to improve rotating speed, has so just caused turbo-lag, thereby has caused the internal-combustion engine vehicle acceleration performance of exhaust gas turbocharge relatively poor.
Summary of the invention
Purpose of the present invention is exactly in order to solve the deficiency of above-mentioned prior art, a kind of device that improves air-intake of combustion engine is provided, it can change the combustion position of internal-combustion engine middle-low load, improves the output torque and the acceleration performance of low speed in the motor, reduces the discharge amount of internal-combustion engine simultaneously.
For achieving the above object, technological scheme of the present invention is: a kind of device that improves air-intake of combustion engine, comprise intake manifold and first air-strainer and the turbocharger that set gradually along the airintake direction of air inlet main, the front end of described intake manifold is provided with the jet pump with the turbocharger serial or parallel connection, and jet pump is controlled by ECU.
From the above, owing to be provided with jet pump with the turbocharger serial or parallel connection at the front end of intake manifold, and jet pump is controlled by ECU, so ought be to put one's foot down instantaneous, ECU opens jet pump according to the instant data of the speed of a motor vehicle and operating mode, in suction tude, spray fresh air, increase the air pressure in the intake manifold, improve the volumetric efficiency of quickening in the instantaneous cylinder, thereby improve the combustion position of low speed in the internal-combustion engine, change the problem of low speed acceleration performance difference in the turbocharger, improve the output torque of low speed in the motor, optimize acceleration performance, the booster response time of vehicle is shortened greatly; Simultaneously,, also improved the utilization ratio of fuel, reduced the discharge amount of internal-combustion engine because fuel has obtained abundant burning.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of device that improves air-intake of combustion engine, comprise intake manifold 4 and the first air-strainer 2A and the turbocharger 7 that set gradually along the airintake direction of air inlet main 5, it is characterized in that: the front end of described intake manifold 4 is provided with the jet pump 1 with turbocharger 7 serial or parallel connections, and jet pump 1 is controlled by ECU.
As preferred version of the present invention, described jet pump 1 is arranged on the inlet end of the first air-strainer 2A.Adopt this mode, the gas of jet pump 1 ejection is purified by the first air-strainer 2A, thereby has realized the object of the invention preferably.
As another kind of preferred version of the present invention, described jet pump 1 is in series and is in parallel with the first air-strainer 2A with turbocharger 7, and the inlet end of jet pump 1 is provided with the second air-strainer 2B.This arrangement is arranged between the turbocharger 7 and the first air-strainer 2A outlet of jet pump 1, this can realize purpose of the present invention equally, for better being moved, internal-combustion engine need the gas of pressurization be purified, so this programme is provided with the second air-strainer 2B at the inlet end of jet pump 1.
As another kind of preferred version of the present invention, described jet pump 1 is in parallel with turbocharger 7, and the outlet port of jet pump 1 is arranged between turbocharger 7 and the intercooler 8, and the inlet end of jet pump 1 is provided with the second air-strainer 2B.
Adopt parallel way to insert jet pump 1, can avoid the phase mutual interference that might occur between fashionable jet pump 1 of series connection and the turbocharger 7, can better realize purpose of the present invention; The outlet port of jet pump 1 is arranged on the pipeline between turbocharger 7 and the intercooler 8, the fresh air that jet pump 1 is sprayed compresses the high-temperature gas that with turbocharger 7 to be mixed mutually, thereby on the one hand to the fresh air preheating, also can reduce the temperature of high-temperature gas on the other hand, reduce the load of intercooler 8, in this case, the front end of jet pump 1 also needs to be provided with the second air-strainer 2B air is purified.
As another kind of preferred version of the present invention, described jet pump 1 is in parallel with turbocharger 7, and the outlet port of jet pump 1 is arranged on the ingress of intake manifold 4, and the inlet end of jet pump 1 is provided with the second air-strainer 2B.
This setup can just be increased to fresh air in the internal-combustion engine when jet pump 1 is opened, has further improved the corresponding speed when vehicle quickens, and has reduced the corresponding time of vehicle.
As the present invention's preferred version further, the air intake branch 3 at described jet pump 1 place and the air inlet main 5 at turbocharger 7 places along angle that airintake direction became less than 90 °.
When the angle of air intake branch 3 and air inlet main 5 hour, air-flow in two pipelines can jet mode mix mutually and hold under the arm and wrap up in, reduce the turbulent loss that has caused when wide-angle is mixed, helped the stability of air-flow in the pipeline, and and then improved the combustion performance of motor.
The time that ECU control jet pump 1 opens or cuts out, can preestablish according to laboratory data.When the vehicle accelerator pedal is operated, after ECU detects the fuel-flow control structural change, judge the transient speed and the operating mode of motor, with the preset parameters contrast, jet pump 1 is opened or is closed in decision.
As shown in Figure 1, the gas after incremental enters air inlet main 5 via air intake branch 3, enters intake manifold 4 then, burning is after gas exhaust manifold 6 is discharged motor, thereby changed the problem of low speed acceleration performance difference in the turbocharger, the output torque in the raising during low speed has been optimized acceleration performance.
Claims (1)
1. device that improves air-intake of combustion engine, comprise intake manifold (4) and first air-strainer (2A) and the turbocharger (7) that set gradually along the airintake direction of air inlet main (5), it is characterized in that: the front end of described intake manifold (4) is provided with the jet pump (1) that is in series with turbocharger (7), jet pump (1) is by ECU control, and described jet pump (1) is arranged on the inlet end of first air-strainer (2A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710191391XA CN101205844B (en) | 2007-12-13 | 2007-12-13 | Device improving air-intake of combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710191391XA CN101205844B (en) | 2007-12-13 | 2007-12-13 | Device improving air-intake of combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101205844A CN101205844A (en) | 2008-06-25 |
| CN101205844B true CN101205844B (en) | 2011-05-11 |
Family
ID=39566271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710191391XA Active CN101205844B (en) | 2007-12-13 | 2007-12-13 | Device improving air-intake of combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205844B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009016810A1 (en) * | 2009-04-09 | 2010-10-14 | Albonair Gmbh | Dosing system for injecting a reducing agent in the exhaust stream of an internal combustion engine |
| CN106704057A (en) * | 2017-01-20 | 2017-05-24 | 李桂江 | Parallel automobile engine air intake system |
| US10920689B2 (en) * | 2017-04-10 | 2021-02-16 | Ford Global Technologies, Llc | Methods and system for improving transient torque response |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2124160U (en) * | 1992-04-15 | 1992-12-09 | 于伟 | Booster for car |
-
2007
- 2007-12-13 CN CN200710191391XA patent/CN101205844B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2124160U (en) * | 1992-04-15 | 1992-12-09 | 于伟 | Booster for car |
Non-Patent Citations (2)
| Title |
|---|
| 附图1. |
| 附图3,4. |
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| Publication number | Publication date |
|---|---|
| CN101205844A (en) | 2008-06-25 |
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Effective date of registration: 20201210 Address after: 246000 5th floor, building B1, Wanjiang high tech Incubation Park, economic development zone, Anqing City, Anhui Province Patentee after: Anqing flex Power Technology Co., Ltd Address before: 241009 No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, China Patentee before: CHERY AUTOMOBILE Co.,Ltd. |