CN201155386Y - Engines exhaust gas recirculation air-intake device - Google Patents
Engines exhaust gas recirculation air-intake device Download PDFInfo
- Publication number
- CN201155386Y CN201155386Y CNU2007200993842U CN200720099384U CN201155386Y CN 201155386 Y CN201155386 Y CN 201155386Y CN U2007200993842 U CNU2007200993842 U CN U2007200993842U CN 200720099384 U CN200720099384 U CN 200720099384U CN 201155386 Y CN201155386 Y CN 201155386Y
- Authority
- CN
- China
- Prior art keywords
- waste
- gas
- exhaust gas
- gas recirculation
- recirculation valve
- 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 - Fee Related
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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
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to an engine waste-gas re-circulating inlet device, which is characterized in that the device comprises an inlet elbow pipe and a waste-gas re-circulating valve that is connected with the waste-gas inlet pipe, wherein, the other end of the waste-gas re-circulating valve is connected with the inlet elbow pipe. The device of the utility model can effectively control the waste-gas quantity; waste re-circulating is a process that partial waste gas is led into a waste-gas cavity from a waste-gas re-circulating inlet through the waste-gas re-circulating valve, and then enters into the cycling to be mixed with the fresh air, and then enters into the air cylinder. When the waste gas that is combusted is re-circulated, the gas cannot be combusted again. The waste gas replaces the normal inlet air, so as to slow down the combustion flow procedures through the chemical reaction, and to reduce the temperature inside the combustion chamber, and to reduce the formation of the NOx.
Description
Technical field
The utility model relates to a kind of engine exhaust recirculation gas handling system, particularly a kind of engine exhaust recirculation air inlet system.
Background technique
At present, the available engine gas handling system generally all is directly fresh air to be introduced in the cylinder by intake elbow, the oxygen content height in combustion process in the cylinder, NOx generates under high-temperature oxygen-enriched condition, and waste gas is discharged fully, and the NOx discharging in the waste gas is too high, can not reach emission request.
Summary of the invention
The utility model provides a kind of engine exhaust recirculation air inlet system that can reduce the NOx discharging for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of engine exhaust recirculation air inlet system, comprise intake elbow, also comprise the exhaust gas recirculation valve that is connected with exhaust inlet pipe, the other end of described exhaust gas recirculation valve is connected with described intake elbow.
The utility model can also adopt following technological scheme:
Described exhaust gas recirculation valve is installed on the exhaust gas recirculation valve body, and the waste gas chamber that communicates with bend pipe is set in the described exhaust gas recirculation valve body.
The waste gas chamber cross section that is provided with in the described exhaust gas recirculation valve body is a ring.
Half end face away from described exhaust gas recirculation valve suction port in the waste gas chamber that is provided with in the described exhaust gas recirculation valve body is lower than half other end face.
Advantage and the good effect that the utlity model has are: can effectively control exhausted air quantity, exhaust gas recirculation is incorporated into part waste gas in the waste gas chamber from the exhaust gas recirculation suction port by exhaust gas recirculation valve, enters circulation and is blended in the process that enters in the cylinder with fresh air.When the exhaust gas recirculation of burning, gas will can not burn again.These gases have replaced some normal air inlets, and after chemical reaction has reduced the temperature of several Baidu in firing chamber with regard to the flow process of slow burning, have also reduced the formation of NOx simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of exhaust gas recirculation valve of the present utility model and pedestal thereof.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, Fig. 2, the utility model comprises intake elbow 1, also comprises the exhaust gas recirculation valve 2 that is connected with exhaust inlet pipe, and the other end of described exhaust gas recirculation valve 2 is connected with described intake elbow 1.
Described exhaust gas recirculation valve 2 is installed on the exhaust gas recirculation valve body 3, in the described exhaust gas recirculation valve body 3 the waste gas chamber 3-1 that communicates with bend pipe is set.
The cross section of the waste gas chamber 3-1 that is provided with in the described exhaust gas recirculation valve body 3 is a ring.
The half end face 3-2 away from described exhaust gas recirculation valve suction port of the waste gas chamber 3-1 that is provided with in the described exhaust gas recirculation valve body 3 is lower than half other end face 3-3.
Working principle of the present utility model is as follows: the waste gas circulation control unit is in time opened according to rotating speed, load (throttle opening), temperature, charge flow rate, the delivery temperature control electromagnetic valve of motor, intake depression enters exhaust gas recirculation valve vacuum diaphragm chamber through solenoid valve, the diaphragm pull bar is opened exhaust gas recirculation (egr) valve, small part waste gas in the exhaust enters gas handling system through exhaust gas recirculation valve, and enters cylinder after mixed gas mixes and participates in burning.Small part waste gas enters the burning that cylinder participates in mixed gas, the waste gas total amount of discharge is reduced, oxygen content in the cylinder when also having reduced burning simultaneously, and because NOx generates under high-temperature oxygen-enriched condition, so exhaust gas recirculation has suppressed the generation of NOx, thereby has reduced the content of the NOx in the waste gas.
Claims (4)
1. an engine exhaust recirculation air inlet system comprises intake elbow, it is characterized in that: also comprise the exhaust gas recirculation valve that is connected with exhaust inlet pipe, the other end of described exhaust gas recirculation valve is connected with described intake elbow.
2. engine exhaust recirculation air inlet system according to claim 1 is characterized in that: described exhaust gas recirculation valve is installed on the exhaust gas recirculation valve body, and the waste gas chamber that communicates with bend pipe is set in the described exhaust gas recirculation valve body.
3. engine exhaust recirculation air inlet system according to claim 2 is characterized in that: the waste gas chamber cross section that is provided with in the described exhaust gas recirculation valve body is a ring.
4. according to claim 2 or 3 described engine exhaust recirculation air inlet systems, it is characterized in that: half end face away from described exhaust gas recirculation valve suction port in the waste gas chamber that is provided with in the described exhaust gas recirculation valve body is lower than half other end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200993842U CN201155386Y (en) | 2007-12-26 | 2007-12-26 | Engines exhaust gas recirculation air-intake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200993842U CN201155386Y (en) | 2007-12-26 | 2007-12-26 | Engines exhaust gas recirculation air-intake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155386Y true CN201155386Y (en) | 2008-11-26 |
Family
ID=40103170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200993842U Expired - Fee Related CN201155386Y (en) | 2007-12-26 | 2007-12-26 | Engines exhaust gas recirculation air-intake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155386Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317023A (en) * | 2018-03-19 | 2018-07-24 | 中国第汽车股份有限公司 | EGR mixing arrangements |
-
2007
- 2007-12-26 CN CNU2007200993842U patent/CN201155386Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317023A (en) * | 2018-03-19 | 2018-07-24 | 中国第汽车股份有限公司 | EGR mixing arrangements |
| CN108317023B (en) * | 2018-03-19 | 2024-02-13 | 中国第一汽车股份有限公司 | EGR mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN LOVOL POWER CO., LTD. Free format text: FORMER NAME: PAJINSI LOVOL POWER ( TIANJIN ) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Tianjin Beichen District Tianjin Wai highway, zip code: 300402 Patentee after: Tianjin LOVOL Engines Co., Ltd. Address before: Tianjin Beichen District Tianjin Wai highway, zip code: 300402 Patentee before: British Joint-Venture Perkins Engines (Tianjin) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20101226 |