CN201884147U - Underlying exhaust gas recirculation system device - Google Patents
Underlying exhaust gas recirculation system device Download PDFInfo
- Publication number
- CN201884147U CN201884147U CN2010206590372U CN201020659037U CN201884147U CN 201884147 U CN201884147 U CN 201884147U CN 2010206590372 U CN2010206590372 U CN 2010206590372U CN 201020659037 U CN201020659037 U CN 201020659037U CN 201884147 U CN201884147 U CN 201884147U
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- CN
- China
- Prior art keywords
- cooler
- exhaust gas
- gas inlet
- gas
- gas recirculation
- 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.)
- Expired - Lifetime
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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 discloses an underlying exhaust gas recirculation system device. A cooler disposed on the lower portion of a gas inlet passage is connected with the same via a flange, and a gas inlet duct of the cooler is fixed to an engine flywheel casing through a support. A gas outlet duct of the cooler is connected to a control valve which is connected with a one-way valve through a flange. A water inlet pipe is connected to the lower side of the cooler, and a water outlet pipe is connected to the upper side of the cooler. High-temperature exhaust gas cooled enters the control valve which is capable of quantitatively guiding the exhaust gas into the gas inlet passage of a cylinder cover at the proper time. The one-way valve is capable of ensuring entry of the exhaust gas into the gas inlet passage when exhaust pressure is lower than intake pressure, while air in the gas inlet passage cannot flow back to an EGR (exhaust gas recirculation) pipeline. Each of the gas inlet duct and the gas outlet duct of the cooler is a corrugated pipe having an elbow flange serving as a joint at one end, so that occupied space is small and connection is convenient. The exterior space of the whole device is compact, thereby requirements of matching with various automobile types are met, and integral matching space is guaranteed. The underlying exhaust gas recirculation system device has fine economic benefit and social benefit, while exhaust control level of the gasoline engine is increased.
Description
Technical field
The utility model belongs to Structure of Internal-Combustion Engine, is specifically related to a kind of diesel engine underneath type gas recirculation system device.
Background technique
Along with the sharp increase of China's Motor Vehicle quantity, automotive emission also is on the rise to the pollution of environment.The many countries that for this reason comprise China have all put into effect strict engine exhaust emission statute of limitation, take measures to reduce the pollution of motor vehicle exhaust emission to environment.Wherein exhaust gas recirculation (hereinafter to be referred as EGR) technology is to reduce the effective way of exhaust emissions environmental pollution.The principle of EGR is a part of high-temp waste gas that engine combustion produces to be transported to again participate in burning in suction tude and the cylinder after supercooling, reduce the oxygen content of mixed gas in the cylinder, reduce the burning maximum temperature, thereby reach the purpose that reduces NOx pollutant in the waste gas, improves discharging.
Because the egr system part is many, volume is big, complex structure, therefore adopt the Diesel Engine Complete Machine component mounting arrangements of egr system comparatively difficult.Generally speaking, Xin Zeng egr system component are arranged in bigger places, space such as the peripheral top of diesel engine, rear portion.So make that to adopt the diesel engine of egr system more much bigger than the profile of ordinary diesel oil machine complete machine, cause the egr system diesel engine on the car load of part model, to be difficult to install, or interfere with the component of car load.Diesel engine and car load coupling difficulty, the coupling application is poor, and the vehicle that the result can be mated diesel engine reduces.Underneath type gas recirculation system structural design proposed by the invention can make compact integral structure, alleviated the problem that the egr system diesel engine is joined the car difficulty.
Summary of the invention
The objective of the invention is, provide a kind of and install the diesel engine of egr system additional in the diesel engine lower space, install rear engine boundary dimension additional and change not quite, the car load coupling is unaffected.
Below in conjunction with accompanying drawing structure of the present invention and principle are described.This underneath type gas recirculation system device comprises intake duct, cooler, cooler turnover tracheae, support, control valve, one-way valve, cooling water water inlet and outlet pipe etc.Make compact integral structure after reaching the adding egr system, reduce the size of complete machine space outerpace, the cooler design and installation that volume is bigger is arranged side by side with intake duct in the bottom of intake duct.Waste gas from the outlet pipe end is drawn enters cooler through the cooler suction tude, and cooler is a gas, water-to-water heat exchanger.The high-temp waste gas cooling is after the cooler steam outlet pipe enters control valve, and control valve can realize quantitatively waste gas being introduced the cylinder cap intake duct in good time.Be provided with one-way valve between intake duct and the control valve.The effect of one-way valve is when exhaust pressure is lower than suction pressure, guarantees that waste gas enters intake duct, the EGR pipeline and the air in the intake duct can not flow backwards back.The waste gas and the fresh air that enter intake duct are mixed into firing chamber participation burning, reduce the oxygen content of mixed gas in the cylinder, reduce the maximum temperature of burning, thereby reach the purpose that reduces NOx pollutant in the waste gas, improves discharging.The cooler of native system is a water-cooling structure.Cooling water is drawn from the machine oil cooler rear end, and water temperature is lower herein, can improve cooling effectiveness, and cooling water enters through cooler lower end intake pipe, is back to motor thermostat front end from cooler upper end discharge currents.
Major advantage of the present utility model is: its cooler of diesel engine that major part has EGR is placed on rocker arm chamber cover or flywheel casing upper end, and underneath type gas recirculation system structure, make complete machine space outerpace dimensional changes very little, complete machine structure is compact more, not only satisfy the coupling requirement with multiple vehicle, and guaranteed the car load package space.The cooling water of this set scheme is not to be in the cooling system peak, and the car load coupling can not adorned swelling water tank, has saved cost.On the basis of the discharge control level that has improved diesel engine, have good economic benefits and social benefit.
Description of drawings
Fig. 1 is the utility model three-dimensional structure diagram.
Fig. 2 is the utility model side position three-dimensional structure diagram.
Embodiment
Below by specific embodiment structural principle of the present utility model is described further, but the content that the present invention is contained is not limited to following embodiment.
Underneath type gas recirculation system device, structure is: cooler 1 places the bottom of intake duct 2 to be connected with intake duct with flange, cooler suction tude 3 is fixed by support 4 and flywheel shell of engine, cooler steam outlet pipe 5 Access Control valves 6, and control valve is connected with one-way valve 7 flanges.Cooler 1 downside is connected to cooling water inlet pipe 8; Upside is connected to cooling water outlet pipe 9.Cooler suction tude 3 and cooler steam outlet pipe 5 are that an end has the bellows of elbow flange as interface.
With the four-cylinder diesel engine is example.Cooler turnover tracheae is formed by heat resisting pipe roll extrusion ripple, has certain flexibility, can guarantee to have good assembling, two ends welded cast steel elbow, compact structure.Support is an ironcasting, has stud, and the suction tude support is fixed on the flywheel casing, so its vibration is very little.Cooler is a shell-and-tube heat exchanger.One-way valve is embedded one-way valve, and one-way valve is clipped between control valve and the outgoing gas connection tube.There are two fixed feet the control valve side, is installed on the air inlet tube, and the control valve import links to each other with the cooler steam outlet pipe.The cooler steam outlet pipe is square for outlet, and the outlet shape is consistent with the one-way valve flange, directly one-way valve is connected with control valve, and this design can reduce installing space.Intake duct is provided with the flange mouth of φ 28 mm internal diameters, with elbow one-way valve is connected with intake duct.The cooler intake pipe is a sebific duct; The outlet pipe steel pipe is connected with sebific duct.
Claims (2)
1. underneath type gas recirculation system device, comprise intake duct, cooler, cooler suction tude, cooler steam outlet pipe, support, control valve, one-way valve, cooling water inlet pipe and cooling water outlet pipe, it is characterized in that cooler (1) places the bottom of intake duct (2) to be connected with intake duct with flange, cooler suction tude (3) is fixed by support (4) and flywheel shell of engine, cooler steam outlet pipe (5) Access Control valve (6), control valve is connected with one-way valve (7) flange, and cooler (1) downside is connected to cooling water inlet pipe (8); Upside is connected to cooling water outlet pipe (9).
2. according to the described underneath type gas recirculation system of claim 1 device, it is characterized in that described cooler suction tude (3) and cooler steam outlet pipe (5) are that an end has the bellows of elbow flange as interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206590372U CN201884147U (en) | 2010-12-15 | 2010-12-15 | Underlying exhaust gas recirculation system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206590372U CN201884147U (en) | 2010-12-15 | 2010-12-15 | Underlying exhaust gas recirculation system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884147U true CN201884147U (en) | 2011-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206590372U Expired - Lifetime CN201884147U (en) | 2010-12-15 | 2010-12-15 | Underlying exhaust gas recirculation system device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201884147U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937057A (en) * | 2012-10-29 | 2013-02-20 | 长城汽车股份有限公司 | Engine EGR (exhaust gas recirculation) system |
| CN103352741A (en) * | 2013-07-12 | 2013-10-16 | 杭叉集团股份有限公司 | Main cooler assembly |
| CN103670833A (en) * | 2013-12-11 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Air intake manifold of diesel engine |
| CN103711613A (en) * | 2012-10-09 | 2014-04-09 | 现代自动车株式会社 | Exhaust gas supply pipe for egr cooler of vehicle |
| CN104696117A (en) * | 2015-01-15 | 2015-06-10 | 东风朝阳朝柴动力有限公司 | Compact type engine EGR (exhaust gas recirculation) system |
| CN106089506A (en) * | 2016-08-18 | 2016-11-09 | 东风朝阳朝柴动力有限公司 | EGR cooler for diesel general assembly structure |
| CN115045781A (en) * | 2022-06-10 | 2022-09-13 | 哈尔滨东安汽车动力股份有限公司 | Low-pressure cooling EGR system capable of achieving high EGR rate |
-
2010
- 2010-12-15 CN CN2010206590372U patent/CN201884147U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711613A (en) * | 2012-10-09 | 2014-04-09 | 现代自动车株式会社 | Exhaust gas supply pipe for egr cooler of vehicle |
| CN102937057A (en) * | 2012-10-29 | 2013-02-20 | 长城汽车股份有限公司 | Engine EGR (exhaust gas recirculation) system |
| CN102937057B (en) * | 2012-10-29 | 2015-08-05 | 长城汽车股份有限公司 | A kind of engine exhaust-gas recirculating system |
| CN103352741A (en) * | 2013-07-12 | 2013-10-16 | 杭叉集团股份有限公司 | Main cooler assembly |
| CN103352741B (en) * | 2013-07-12 | 2015-12-09 | 杭叉集团股份有限公司 | Main cooler assembly |
| CN103670833A (en) * | 2013-12-11 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Air intake manifold of diesel engine |
| CN104696117A (en) * | 2015-01-15 | 2015-06-10 | 东风朝阳朝柴动力有限公司 | Compact type engine EGR (exhaust gas recirculation) system |
| CN106089506A (en) * | 2016-08-18 | 2016-11-09 | 东风朝阳朝柴动力有限公司 | EGR cooler for diesel general assembly structure |
| CN115045781A (en) * | 2022-06-10 | 2022-09-13 | 哈尔滨东安汽车动力股份有限公司 | Low-pressure cooling EGR system capable of achieving high EGR rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG CHAOYANG DIESEL ENGINE POWER LIMITED Free format text: FORMER OWNER: DONGFENG CHAOYANG DIESEL ENGINE CO., LTD. Effective date: 20120331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120331 Address after: 122000 the Yellow River Road, Liaoning, No. 3, No. 51, No. Patentee after: Dongfeng Chaoyang Chaochai Power Co., Ltd. Address before: 122000 the Yellow River Road, Liaoning, No. 3, No. 51, No. Patentee before: Dongfeng Chaoyang Diesel Engine Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Underlying exhaust gas recirculation system device Effective date of registration: 20190612 Granted publication date: 20110629 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |