CN104373252A - EGR valve mechanism provided with cooling cavity - Google Patents
EGR valve mechanism provided with cooling cavity Download PDFInfo
- Publication number
- CN104373252A CN104373252A CN201410375960.6A CN201410375960A CN104373252A CN 104373252 A CN104373252 A CN 104373252A CN 201410375960 A CN201410375960 A CN 201410375960A CN 104373252 A CN104373252 A CN 104373252A
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- CN
- China
- Prior art keywords
- egr valve
- cooling chamber
- water
- cooling cavity
- valve mechanism
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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 invention discloses an EGR valve mechanism provided with a cooling cavity. The EGR valve mechanism provided with the cooling cavity comprises a wire harness end socket, an electromechanical actuator, an water inlet and outlet connector and a valve body, wherein the valve body comprises an actuator cavity, an air inlet, an air outlet, a water inlet, a water outlet and the cooling cavity, the cooling cavity and the valve body are cast into a whole, and a cooling water channel is formed inside the cooling cavity. The EGR valve mechanism provided with the cooling cavity is simple in structure and low in manufacturing cost. The EGR valve mechanism provided with the cooling cavity can effectively reduce exhaust emission and is mainly used for lowering the temperature of exhaust gas discharged by a diesel, therefore, stable and reliable operation of the EGR valve electromechanical mechanism is guaranteed, the temperature of the exhaust gas is lowered, and meanwhile by lowering the temperature of the exhaust gas, optimal combustion of oil gas of the diesel is guaranteed and combustion emission is reduced.
Description
Technical field
The present invention relates generally to diesel engine arts, is specifically related to a kind of EGR valve mechanism carrying cooling chamber.
Background technique
Conventional engines mainly gasoline and diesel oil mixes after-combustion by a certain percentage with air, and burning makes chemical energy be converted into the kinetic energy of human needs by this mechanical device of motor.But the H contained in C, S element contained in petroleum products and air, N element produce complicated chemical reaction under high-temp combustion condition, finally discharge harm humans environment and healthy waste gas.For controlling toxic emission, discharge amount of exhaust gas must be reduced from source or vent gas treatment aspect.So adopt EGR device effectively can improve the discharge of waste gas, if but directly high-temp waste gas is introduced low temperature air inlet end, electromechanical mechanism work clamping stagnation will be caused to lose efficacy, be also unfavorable for in-cylinder combustion simultaneously, so introduce the theory of waste gas cooling recirculation.
Summary of the invention
The object of the invention is that overcoming prior art Problems existing provides a kind of EGR valve mechanism carrying cooling chamber, the present invention effectively reduces a kind of mechanism of exhaust emissions amount, mainly for reducing the exhaust gas temperature of discharging from diesel engine, thus it is steadily reliable not only can to ensure that EGR valve electromechanical mechanism runs, and reduce row's temperature simultaneously for ensureing the burning of diesel engine oil gas optimization, reduce burning and exhausting.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of EGR valve mechanism carrying cooling chamber, comprise wire harness end socket, electro-mechanical actuator, water inlet and outlet joint, valve body, it is characterized in that: described valve body comprises actuator cavity, suction port, relief opening, water intake, water outlet and cooling chamber, described cooling chamber and valve body are cast into one, inside establish a cooling water channel.
Described final controlling element inside comprises electromagnetic coil, armature, iron core and spring etc., is controlled, under optimum conditions opening and closing EGR valve, make EGR rate realize optimization under different operating mode by ECU.
Described water supply connector and water output connector and cooling chamber constitute a water channel loop jointly.
Compared with prior art, the invention has the beneficial effects as follows:
Structure of the present invention is simple, low cost of manufacture, the present invention effectively can reduce a kind of mechanism of exhaust emissions amount in fact, mainly for reducing the exhaust gas temperature of discharging from diesel engine, thus it is steadily reliable not only can to ensure that EGR valve electromechanical mechanism runs, and reduce row's temperature simultaneously for ensureing the burning of diesel engine oil gas optimization, reduce burning and exhausting.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is cooling cavity structure schematic diagram of the present invention.
In figure, 1. pad pivot, 2. vacuum driving spring, 3. iron core, 4. water intake, 5. suction port flange, 6. relief opening flange, 7. cooling chamber, 8. water outlet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described
As depicted in figs. 1 and 2, valve body adds cooling by water chamber 7, fetched water by engine body water channel, first cooling chamber 7 is entered by water intake 4, water encloses at cooling chamber 7 Inner eycle one, then from water outlet 8, gets back to engine cylinder cap water channel, hydraulic pressure due to body water channel inside is far longer than cylinder head water channel hydraulic pressure, so can ensure that current are able to proper flow in engine operation process.
Valve body suction port flange 5 is connected with engine exhaust pipe, electromagnetic coil and armature 1 is accurately controlled by ECU, vacuum pump provides vacuum driving spring 2 and iron core 3 to carry out regulating valve seat lift, EGR is opened, waste gas enters cooling chamber 7 through cooling by water, after entered valve body relief opening flange 6 again, valve body relief opening flange 6 is connected with engine air inlet tube, eventually pass through cooled waste gas and fresh air together to enter in cylinder and burn with fuel oil, finally reach engine emission requirements.
Current flow at valve inner, effectively reduce the delivery temperature of motor, because EGR valve electromagnetic coil and armature component just must can ensure the reliability of its work≤200 DEG C of temperature, so the exhaust gas temperature of discharging from engine exhaust pipe effectively can be reduced to 200 DEG C from 500 DEG C by this invention, ensure that the normal work of electronic component;
This behave of reduction exhaust gas temperature improves physical and chemical reaction when waste gas introducing cylinder burns together with fresh air simultaneously, can the delay period of prolonging combustion to EGR cooling, increase the ratio of pre-mixing combustion, shorten combustion duration, reduce the rate of heat release peak value of burning, reduce the maximum temperature of burning, thus reduce the discharge of NOx; The reduction of combustion temperature, can reduce the radiation loss in combustion process, improves the thermal efficiency, reduces fuel oil consumption.The increase of pre-mixing combustion ratio and the shortening of combustion duration, can reduce the discharge of soot.
Claims (3)
1. one kind carries the EGR valve mechanism of cooling chamber, comprise wire harness end socket, electro-mechanical actuator, water inlet and outlet joint, valve body, it is characterized in that: described valve body comprises actuator cavity, suction port, relief opening, water intake, water outlet and cooling chamber, described cooling chamber and valve body are cast into one, inside establish a cooling water channel.
2. a kind of EGR valve mechanism carrying cooling chamber according to claim 1, it is characterized in that: described final controlling element inside comprises electromagnetic coil, armature, iron core and spring etc., controlled by ECU, opening and closing EGR valve under optimum conditions, makes EGR rate realize optimization under different operating mode.
3. a kind of EGR valve mechanism carrying cooling chamber according to claim 1, is characterized in that: described water supply connector and water output connector and cooling chamber constitute a water channel loop jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375960.6A CN104373252A (en) | 2014-08-01 | 2014-08-01 | EGR valve mechanism provided with cooling cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375960.6A CN104373252A (en) | 2014-08-01 | 2014-08-01 | EGR valve mechanism provided with cooling cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373252A true CN104373252A (en) | 2015-02-25 |
Family
ID=52552373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410375960.6A Pending CN104373252A (en) | 2014-08-01 | 2014-08-01 | EGR valve mechanism provided with cooling cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236508A (en) * | 2017-07-10 | 2019-01-18 | 通用汽车环球科技运作有限责任公司 | With the engine for extending long path EGR operation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627313Y (en) * | 2003-06-27 | 2004-07-21 | 黄显华 | Rectilinear motor-driven exhaust gas recirculation valve |
| EP2357350A1 (en) * | 2010-02-16 | 2011-08-17 | Kamtec Inc. | Exhaust gas recirculation valve in vehicle |
| CN102400819A (en) * | 2011-12-02 | 2012-04-04 | 湖南天雁机械有限责任公司 | Diesel engine exhaust gas recirculation system cooling method and device |
| CN102597478A (en) * | 2009-11-18 | 2012-07-18 | 三菱电机株式会社 | Drop-in type of exhaust gas recirculation valve, and system for attaching same |
| CN203640868U (en) * | 2014-01-10 | 2014-06-11 | 昌辉汽车电器（黄山）股份公司 | Automobile EGR (exhaust gas recirculation) valve |
-
2014
- 2014-08-01 CN CN201410375960.6A patent/CN104373252A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627313Y (en) * | 2003-06-27 | 2004-07-21 | 黄显华 | Rectilinear motor-driven exhaust gas recirculation valve |
| CN102597478A (en) * | 2009-11-18 | 2012-07-18 | 三菱电机株式会社 | Drop-in type of exhaust gas recirculation valve, and system for attaching same |
| EP2357350A1 (en) * | 2010-02-16 | 2011-08-17 | Kamtec Inc. | Exhaust gas recirculation valve in vehicle |
| CN102400819A (en) * | 2011-12-02 | 2012-04-04 | 湖南天雁机械有限责任公司 | Diesel engine exhaust gas recirculation system cooling method and device |
| CN203640868U (en) * | 2014-01-10 | 2014-06-11 | 昌辉汽车电器（黄山）股份公司 | Automobile EGR (exhaust gas recirculation) valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236508A (en) * | 2017-07-10 | 2019-01-18 | 通用汽车环球科技运作有限责任公司 | With the engine for extending long path EGR operation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
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| WD01 | Invention patent application deemed withdrawn after publication |