CN201963432U - Air suction device and diesel engine - Google Patents
Air suction device and diesel engine Download PDFInfo
- Publication number
- CN201963432U CN201963432U CN2011200243715U CN201120024371U CN201963432U CN 201963432 U CN201963432 U CN 201963432U CN 2011200243715 U CN2011200243715 U CN 2011200243715U CN 201120024371 U CN201120024371 U CN 201120024371U CN 201963432 U CN201963432 U CN 201963432U
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- Prior art keywords
- air inlet
- air
- inlet pipe
- mixer
- diesel engine
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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 utility model relates to the technical field of a diesel engine and discloses an air suction device. The air suction device comprises a waste air inlet pipe and a tubular mixer, wherein one end of the mixer is communicated with an air inlet pipe of an engine, a fresh air inlet is formed at the other end of the mixer, an air outlet end of the waste air inlet pipe extends into the mixer from the side wall of the mixer, and the air outlet end of the waste air inlet pipe is provided with a plurality of air outlet holes for flowing out the waste air. The waste air discharged out of an exhaust system enters the waste air inlet pipe and flows into the mixer by the air outlet holes arranged at the air outlet end of the waster air inlet pipe, the waste gas in the waste gas inlet pipe is divided into a plurality of fine waste gas flow by the air outlet holes, and the fine waste gas flow can be more evenly mixed with the fresh air in the mixer, so that the waste air and the fresh air form a mixed gas which is more even, and the mixed gas enters an air cylinder of the diesel engine through the air inlet pipe of the engine. The utility model further discloses a diesel engine with the air suction device.
Description
Technical field
The utility model relates to Diesel Engine Technique Field, relates in particular to a kind of air inlet system that waste gas and fresh air can be mixed.The utility model also relates to a kind of diesel engine with above-mentioned air inlet system.
Background technique
The noxious emission of motor is an important source of causing pollution of atmosphere, along with the significance of environmental protection problem increases day by day, how to reduce Engine's Harmful Emission, has become an important research direction of present motor development.Along with the consumption of world oil goods rises year by year, international oil price is high, the Economy of diesel engine is outstanding day by day, this make diesel engine in power train in vehicle application in occupation of more and more important position, therefore, how to reduce the harmful emission of diesel engine thing, become an important topic of Diesel Engine Technique Field.
At present, in order to reduce the cylinder of diesel engine temperature and to control harmful components ratio in the waste gas, common employing is quoted a part of waste gas and is burnt to the cylinder of diesel engine, reduces the noxious gas emission that diesel engine is discharged according to this, promptly adopts diesel exhaust recirculation to reduce emission of harmful substances.In this scheme, whether waste gas and fresh air mix in the gas handling system, directly have influence on the height of combustion efficiency and emission performance, therefore, the uniformity of having only the mixed gas of control waste gas and fresh air formation can guarantee that just diesel engine has higher combustion efficiency and emission performance preferably.
In the prior art, usually the waste gas that diesel engine exhaust system is discharged is directly introduced in the cylinder, waste gas mixes with fresh air in cylinder, the mixed gas uniformity that this scheme makes waste gas and fresh air form is relatively poor, so make the combustion efficiency of diesel engine lower, emission performance is relatively poor.
Therefore, how to make waste gas can mix comparatively equably, become the technical barrier that those skilled in the art need to be resolved hurrily with fresh air.
The model utility content
First purpose of the present utility model provides a kind of air inlet system, and this air inlet system can mix waste gas and fresh air comparatively equably.Second purpose of the present utility model provides a kind of diesel engine with above-mentioned air inlet system.
In order to realize above-mentioned first purpose, the utility model provides a kind of air inlet system, comprise exhaust inlet pipe, mixer in a tubular form, one end of described mixer is communicated with engine air inlet tube, the other end forms fresh air inlet, the outlet side of described exhaust inlet pipe extends in the described mixer from the sidewall of described mixer, and the outlet side of described exhaust inlet pipe is provided with a plurality of air outlet holes for the waste gas outflow.
Preferably, the outlet side of described exhaust inlet pipe is a warp architecture.
Preferably, the end of the outlet side of described exhaust inlet pipe is a hatch frame, and the center line of described hatch frame is parallel with the center line of described mixer.
Preferably, the end of the outlet side of described exhaust inlet pipe is an enclosed construction.
Preferably, the sidewall of the outlet side of described exhaust inlet pipe is provided with described air outlet hole.
Preferably, described exhaust inlet pipe is provided with one-way valve.
Preferably, the fresh air inlet of described mixer is communicated with the air outlet of intercooler.
Preferably, the inlet end of described exhaust inlet pipe is communicated with outlet pipe.
The air inlet system that the utility model provides comprises exhaust inlet pipe and mixer, one end of mixer is communicated with engine air inlet tube, the other end forms fresh air inlet, the outlet side of exhaust inlet pipe extends in the described mixer from the sidewall of described mixer, and the outlet side of described exhaust inlet pipe is provided with a plurality of air outlet holes for the waste gas outflow.
The waste gas that vent systems is discharged enters in the exhaust inlet pipe, the a plurality of air outlet holes that are provided with through the outlet side of exhaust inlet pipe flow in the mixer, waste gas in the exhaust inlet pipe is split into a plurality of tiny exhaust flows by a plurality of air outlet holes, these tiny exhaust flows can mix comparatively equably with the fresh air in the mixer, make waste gas and fresh air form mixed gas comparatively uniformly, this mixed gas is in engine air inlet tube enters cylinder of diesel engine.Because the uniformity of mixed gas is better, can make diesel engine have higher combustion efficiency and emission performance preferably.
In order to realize above-mentioned second purpose, the utility model also provides a kind of diesel engine, this diesel engine comprises engine air inlet tube and above-mentioned air inlet system, described mixer is communicated with described engine air inlet tube, because above-mentioned air inlet system possesses above-mentioned technique effect, the diesel engine with this air inlet system also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the air inlet system that model utility provided;
Wherein, among Fig. 1:
Embodiment
In order to make those skilled in the art better understand the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please referring to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of the air inlet system that model utility provided.
As shown in Figure 1, the air inlet system that the utility model provides comprises exhaust inlet pipe 1, mixer 2, and described exhaust inlet pipe 1 is used to introduce the waste gas that vent systems is discharged, mixer 2 in a tubular form, mixer 2 is used to introduce fresh air; One end of mixer 2 is communicated with engine air inlet tube 3, and the other end forms fresh air inlet, and fresh air can enter in the mixer 2 by fresh air inlet; The outlet side of exhaust inlet pipe 1 extends in the mixer 2 from the sidewall of mixer 2, and the outlet side of exhaust inlet pipe 1 is provided with a plurality of air outlet holes 11 for the waste gas outflow, and exhaust inlet pipe 1 is communicated with mixer 2 by air outlet hole 11.
Fresh air enters in the mixer 2 along direction shown in the horizontal arrow among Fig. 1; The waste gas that vent systems is discharged enters in the exhaust inlet pipe 1, direction shown in the vertical arrow is an exhaust gas flow direction among Fig. 1, waste gas flows in the mixer 2 through a plurality of air outlet holes 11, waste gas in the exhaust inlet pipe 1 is split into a plurality of tiny exhaust flows by a plurality of air outlet holes 11, these tiny exhaust flows can mix comparatively equably with the fresh air in the mixer 2, make waste gas and fresh air form mixed gas comparatively uniformly, this mixed gas enters in the cylinder of diesel engine through engine air inlet tube 3.Because the uniformity of mixed gas is better, can make diesel engine have higher combustion efficiency and emission performance preferably.
In a kind of mode of execution particularly, as shown in Figure 1, the outlet side of exhaust inlet pipe 1 is a warp architecture, because inlet end is positioned at mixer 2, inlet end is arranged to warp architecture, can reduce the fresh air flow resistance, can make fresh air enter in the engine air inlet tube 3 with bigger flow velocity.
Further in the scheme, the end of the outlet side of exhaust inlet pipe 1 is a hatch frame, exhaust inlet pipe 1 can be communicated with mixer 2 by this hatch frame, the center line of this hatch frame can be parallel with the center line of mixer 2, waste gas part in the exhaust inlet pipe 1 can enter in the mixer 2 by air outlet hole 11, unnecessary waste gas can enter by the hatch frame of outlet side in the mixer 2, because the center line of this hatch frame is parallel with the center line of mixer 2, waste gas is identical with the flow direction of fresh air from the direction that hatch frame flows out, and can not influence the flowing velocity of fresh air from the waste gas of hatch frame outflow.
In a kind of concrete mode of execution, air outlet hole 11 is arranged on the sidewall of outlet side of exhaust inlet pipe 1, in the preferred scheme, a plurality of air outlet holes 11 can be evenly distributed and be located on the sidewall of outlet side, and this scheme can make waste gas flow into more equably in the mixer 2.
In the preferred version, oppositely flow into the vent systems of diesel engine, can on exhaust inlet pipe 1, be provided with one-way valve through exhaust inlet pipe 1 in order to prevent the mixed gas in the mixer 2.
In the concrete scheme, for the diesel engine with turbosupercharger, intercooler, the fresh air inlet of mixer 2 can be communicated with the air outlet of intercooler, enters in the mixer 2 after the turbosupercharging of fresh air process, the cooling.
For the diesel engine that only has turbosupercharger, the fresh air inlet of mixer 2 can be communicated with the air outlet of turbosupercharger.
Be appreciated that the utility model does not limit the position that fresh air inlet connected of mixer 2, as long as fresh air is all should be in protection domain of the present utility model through the scheme that enters engine air inlet tube 3 behind the mixer 2 again.
In the concrete scheme, the inlet end of exhaust inlet pipe 1 can directly be communicated with outlet pipe; The diesel engine that has intercooler for vent systems; the inlet end of exhaust inlet pipe 1 also can be communicated with the air outlet of intercooler; be appreciated that; the utility model does not limit the position that inlet end connected of exhaust inlet pipe 1, all should be in protection domain of the present utility model as long as enter the scheme of engine air inlet tube 3 behind the process exhaust inlet pipe 1 again from the waste gas that vent systems is discharged.
In the foregoing description; the outlet side of exhaust inlet pipe 1 is a warp architecture; the air inlet system that the utility model provides is not limited thereto; the outlet side of exhaust inlet pipe 1 can also be straight tube structure; also can be irregularly shaped structure, all outlet sides at exhaust inlet pipe 1 are provided with the structure of a plurality of air outlet holes 11 all should be in protection domain of the present utility model.
In the foregoing description, the end of the outlet side of exhaust inlet pipe 1 is a hatch frame, the end of the outlet side of exhaust inlet pipe 1 can also be enclosed construction, preferred version, also can on described enclosed construction, establish a plurality of air outlet holes 11, so that comparatively equably the waste gas in the waste gas exhaust pipe is entered in the mixer 2.
The utility model also provides a kind of diesel engine, this diesel engine comprises engine air inlet tube and above-mentioned air inlet system, described mixer is communicated with described engine air inlet tube, because above-mentioned air inlet system possesses above-mentioned technique effect, diesel engine with this air inlet system also should possess the corresponding techniques effect, no longer is described in detail at this.
The above only is the description of the preferred implementation of model utility; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. air inlet system, it is characterized in that, comprise exhaust inlet pipe, mixer in a tubular form, one end of described mixer is communicated with engine air inlet tube, the other end forms fresh air inlet, the outlet side of described exhaust inlet pipe extends in the described mixer from the sidewall of described mixer, and the outlet side of described exhaust inlet pipe is provided with a plurality of air outlet holes for the waste gas outflow.
2. air inlet system according to claim 1 is characterized in that, the outlet side of described exhaust inlet pipe is a warp architecture.
3. air inlet system according to claim 2 is characterized in that, the end of the outlet side of described exhaust inlet pipe is a hatch frame, and the center line of described hatch frame is parallel with the center line of described mixer.
4. air inlet system according to claim 1 is characterized in that, the end of the outlet side of described exhaust inlet pipe is an enclosed construction.
5. according to each described air inlet system of claim 1-4, it is characterized in that the sidewall of the outlet side of described exhaust inlet pipe is provided with described air outlet hole.
6. air inlet system according to claim 1 is characterized in that described exhaust inlet pipe is provided with one-way valve.
7. air inlet system according to claim 1 is characterized in that, the fresh air inlet of described mixer is communicated with the air outlet of intercooler.
8. air inlet system according to claim 1 is characterized in that the inlet end of described exhaust inlet pipe is communicated with outlet pipe.
9. a diesel engine comprises engine air inlet tube, it is characterized in that, also comprises each described air inlet system of claim 1-8, and described mixer is communicated with described engine air inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200243715U CN201963432U (en) | 2011-01-21 | 2011-01-21 | Air suction device and diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200243715U CN201963432U (en) | 2011-01-21 | 2011-01-21 | Air suction device and diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963432U true CN201963432U (en) | 2011-09-07 |
Family
ID=44525969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200243715U Expired - Lifetime CN201963432U (en) | 2011-01-21 | 2011-01-21 | Air suction device and diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963432U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128110A (en) * | 2011-01-21 | 2011-07-20 | 潍柴动力股份有限公司 | Air inlet device and diesel engine |
| CN106286044A (en) * | 2016-09-26 | 2017-01-04 | 安徽江淮汽车股份有限公司 | Motor intake manifold |
| CN109404121A (en) * | 2018-11-30 | 2019-03-01 | 中国船舶重工集团公司第七研究所 | Tonifying Qi Effuser device and diesel engine with it |
| CN110185558A (en) * | 2019-05-23 | 2019-08-30 | 安徽江淮汽车集团股份有限公司 | Gas mixer and engine charge mixed structure |
| CN112160852A (en) * | 2020-10-09 | 2021-01-01 | 潍柴动力股份有限公司 | Air inlet mixing device and engine |
| CN113550843A (en) * | 2020-10-30 | 2021-10-26 | 长城汽车股份有限公司 | Interface tube, engine subassembly and vehicle |
-
2011
- 2011-01-21 CN CN2011200243715U patent/CN201963432U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128110A (en) * | 2011-01-21 | 2011-07-20 | 潍柴动力股份有限公司 | Air inlet device and diesel engine |
| CN106286044A (en) * | 2016-09-26 | 2017-01-04 | 安徽江淮汽车股份有限公司 | Motor intake manifold |
| CN106286044B (en) * | 2016-09-26 | 2019-03-26 | 安徽江淮汽车集团股份有限公司 | Motor intake manifold |
| CN109404121A (en) * | 2018-11-30 | 2019-03-01 | 中国船舶重工集团公司第七研究所 | Tonifying Qi Effuser device and diesel engine with it |
| CN109404121B (en) * | 2018-11-30 | 2019-11-19 | 中国船舶重工集团公司第七一一研究所 | Tonifying Qi Effuser device and diesel engine with it |
| CN110185558A (en) * | 2019-05-23 | 2019-08-30 | 安徽江淮汽车集团股份有限公司 | Gas mixer and engine charge mixed structure |
| CN112160852A (en) * | 2020-10-09 | 2021-01-01 | 潍柴动力股份有限公司 | Air inlet mixing device and engine |
| CN112160852B (en) * | 2020-10-09 | 2022-04-05 | 潍柴动力股份有限公司 | Air inlet mixing device and engine |
| CN113550843A (en) * | 2020-10-30 | 2021-10-26 | 长城汽车股份有限公司 | Interface tube, engine subassembly and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |