CN202194743U - Mechanical type exhaust gas recirculation valve suitable for non-road supercharged diesel engine - Google Patents
Mechanical type exhaust gas recirculation valve suitable for non-road supercharged diesel engine Download PDFInfo
- Publication number
- CN202194743U CN202194743U CN2011202801523U CN201120280152U CN202194743U CN 202194743 U CN202194743 U CN 202194743U CN 2011202801523 U CN2011202801523 U CN 2011202801523U CN 201120280152 U CN201120280152 U CN 201120280152U CN 202194743 U CN202194743 U CN 202194743U
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- China
- Prior art keywords
- valve
- diesel engine
- exhaust gas
- valve body
- road
- 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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Abstract
The utility model relates to a mechanical type exhaust gas recirculation valve suitable for a non-road supercharged diesel engine, which comprises a pneumatic valve body, a valve core, an air exhaust opening flange and an air inlet flange. A spring is arranged inside the left end of the pneumatic valve body. The pneumatic valve body is provided with the valve core. The outside of the right end of the valve core is provided with an external valve block and the interior of the right end of the valve core is provided with an inner valve block. The air exhaust opening air exhaust opening flange is arranged between the external valve block and the inner valve block. The pneumatic valve body is also provided with the air inlet flange capable of being installed with an air inlet adapter. The opened degree of an EGR valve is controlled through the supercharging pressure of the supercharger. The mechanical type exhaust gas recirculation valve suitable for a non-road supercharged diesel engine is simple in structure, economical, practical and better in effect.
Description
Technical field
The utility model relates to the valve of control Diesel NOx (oxynitrides, down together) discharging, specifically a kind of mechanical type EGR valve that is applicable to non-road supercharged diesel engine.
Background technique
Existing EGR (exhaust gas recirculation, down together) technology is one of key technology that solves the Diesel NOx discharging.If the EGR technology that is applied to diesel engine for automobile at present, be used for controlling the NOx discharging of diesel engine used not on road, need to add sensor and other electrical apparatus element, seem too complicated.
Summary of the invention
The purpose of the utility model is, designs a kind of simple and practical mechanical type exhaust gas recirculation valve, makes it can control the discharging of non-road supercharged diesel engine NOx.
The utility model is to realize purpose of design like this:
Be designed with air pressure valve body 1; Spool 6; Relief opening flange 3; Suction port flange 2.Make the left end inside of air pressure valve body 1 that the spring 5 that has pretightening force arranged; Also have the spool 6 that to do axial motion on the air pressure valve body 1; The outside valve block 7 that can fit tightly with relief opening flange 3 outsides is installed in the right-hand member of spool 6 outside; The right-hand member installed inside of spool 6 has the inboard valve block 8 that can fit tightly with relief opening flange 3 inboards; The relief opening flange 3 that can be connected with the diesel engine intake pipe is housed between outer valves sheet 7 and inboard valve block 8; Also have on the air pressure valve body 1 can with the diesel pressure booster bleed valve get tracheae air inlet tube 4 that is connected and the suction port flange 2 that can be connected with the diesel exhaust gas pipeline.
During use, air inlet tube 4 is received getting on the air pipe of diesel pressure booster bleed valve with threeway.Along with the variation of diesel engine speed and load, the pressurized machine boost pressure and then changes immediately, and the pressure in the air pressure valve equals the cracking pressure of pressurized machine bleed valve.The variation of air pressure valve pressure drives the axial motion of spool 6.Control the size of EGR valve opening by the size of pressurized machine boost pressure.
The utility model is simple in structure, and is economical and practical, and effect is better.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, a non-limiting examples is explained.
Be designed with air pressure valve body 1; Spool 6; Relief opening flange 3; Suction port flange 2.Make the left end inside of air pressure valve body 1 that the spring 5 that has pretightening force arranged; Also have the spool 6 that to do axial motion on the air pressure valve body 1; The outside valve block 7 that can fit tightly with relief opening flange 3 outsides is installed in the right-hand member of spool 6 outside; The right-hand member installed inside of spool 6 has the inboard valve block 8 that can fit tightly with relief opening flange 3 inboards; The relief opening flange 3 that can be connected with the diesel engine intake pipe is housed between outer valves sheet 7 and inboard valve block 8; Also have on the air pressure valve body 1 can with the diesel pressure booster bleed valve get tracheae air inlet tube 4 that is connected and the suction port flange 2 that can be connected with the diesel exhaust gas pipeline.
During use, air inlet tube 4 is received getting on the air pipe of diesel pressure booster bleed valve with threeway.Along with the variation of diesel engine speed and load, the pressurized machine boost pressure and then changes immediately.Pressure in the air pressure valve equals the cracking pressure of pressurized machine bleed valve, and the variation of air pressure valve pressure drives the axial motion of spool.Control the size of EGR valve opening by the size of pressurized machine boost pressure.
When diesel engine was static, the pressurized machine boost pressure was zero, and the air pressure valve internal pressure also is zero, and spool remains static, and spool 6 is under the pretightening force effect of spring 5 at this moment, and outside valve block 7 fits tightly with relief opening flange 3 outsides, and the EGR valve is in closed condition.
When the diesel engine idling, the pressurized machine boost pressure is less, and the underpressure in the air pressure valve is to drive the axial motion of spool, and this moment, the outside valve block 7 of spool 6 still fitted tightly with relief opening flange 3 outside sealing surfaces, and the EGR valve still is in closed condition.
When diesel engine had sub load or little load operation, the pressurized machine boost pressure raise gradually, along with the rising of pressurized machine boost pressure; Air pressure valve drives spool 6 and moves right; Make outside valve block 7 also constantly move right, break away from the outside of relief opening flange 3 gradually, the EGR opening of valves.
When the rotating speed of diesel engine and load increase to a certain degree; Perhaps when diesel engine high speed full load and large load operation; Air pressure valve drives spool 6 to be continued to move right, and makes inboard valve block 8 fit tightly with relief opening flange 3 inner seal faces, and exhaust gas recirculation (EGR) valve is in closed condition again.
The utility model is simple in structure, and is economical and practical, and effect is better.
Claims (1)
1. mechanical type exhaust gas recirculation valve that is applicable to non-road supercharged diesel engine is characterized in that:
Air pressure valve body (1) is arranged;
There is the spring (5) that has pretightening force the left end inside of air pressure valve body (1);
Also have the spool (6) that to do axial motion on the air pressure valve body (1);
The right-hand member of spool (6) outside has the outside valve block (7) that can fit tightly with relief opening flange (3) outside;
The right-hand member inboard of spool (6) has the inboard valve block (8) that can fit tightly with relief opening flange (3) inboard;
The relief opening flange (3) that can be connected with the diesel engine intake pipe is housed between outer valves sheet (7) and inboard valve block (8);
Also have on the air pressure valve body (1) can with the diesel pressure booster bleed valve get tracheae air inlet tube (4) that is connected and the suction port flange (2) that can be connected with the diesel exhaust gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202801523U CN202194743U (en) | 2011-08-04 | 2011-08-04 | Mechanical type exhaust gas recirculation valve suitable for non-road supercharged diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202801523U CN202194743U (en) | 2011-08-04 | 2011-08-04 | Mechanical type exhaust gas recirculation valve suitable for non-road supercharged diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194743U true CN202194743U (en) | 2012-04-18 |
Family
ID=45949659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202801523U Expired - Fee Related CN202194743U (en) | 2011-08-04 | 2011-08-04 | Mechanical type exhaust gas recirculation valve suitable for non-road supercharged diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032781A (en) * | 2015-03-19 | 2016-10-19 | 常州科普动力机械有限公司 | EGR stop value, and internal combustion engine and automobile using the same |
-
2011
- 2011-08-04 CN CN2011202801523U patent/CN202194743U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032781A (en) * | 2015-03-19 | 2016-10-19 | 常州科普动力机械有限公司 | EGR stop value, and internal combustion engine and automobile using the same |
| CN106032781B (en) * | 2015-03-19 | 2018-07-03 | 常州科普动力机械有限公司 | EGR check valves and internal combustion engine, the automobile using the valve |
| CN109026456A (en) * | 2015-03-19 | 2018-12-18 | 常州科普动力机械有限公司 | Internal combustion engine stable and reliable in work EGR check valve |
| CN109058002A (en) * | 2015-03-19 | 2018-12-21 | 常州科普动力机械有限公司 | The internal combustion engine EGR check valve of the oxynitrides in tail gas can be reduced |
| CN109139309A (en) * | 2015-03-19 | 2019-01-04 | 常州科普动力机械有限公司 | Adapt to the EGR check valve of the various workloads of internal combustion engine |
| CN109139308A (en) * | 2015-03-19 | 2019-01-04 | 常州科普动力机械有限公司 | The working method of internal combustion engine EGR check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120804 |