CN2720134Y - Engine electric-control EGR valve driven by proportional electromagnet - Google Patents
Engine electric-control EGR valve driven by proportional electromagnet Download PDFInfo
- Publication number
- CN2720134Y CN2720134Y CN2004200824624U CN200420082462U CN2720134Y CN 2720134 Y CN2720134 Y CN 2720134Y CN 2004200824624 U CN2004200824624 U CN 2004200824624U CN 200420082462 U CN200420082462 U CN 200420082462U CN 2720134 Y CN2720134 Y CN 2720134Y
- Authority
- CN
- China
- Prior art keywords
- valve
- proportion electro
- valve body
- magnet
- engine electric
- 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
Links
Images
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to an engine electric-control E G R valve driven by proportional electromagnet, comprising a valve body, a valve base, a valve rod and a drive device, characterized in that: the drive device is a proportional electromagnet assembly (5), an end cover (7) is added on the proportional electromagnet assembly (5), and a dust-proof cover (9) is arranged between the proportional electromagnet assembly (5) and the valve body (1); fillers (13) are filed between the valve rod (3) and the guide hole of the valve body (1), heat insulating plates (4) are arranged on the valve body (1) and a filler pressing cover (12), and the valve body (1) is adopted with an air inlet and an air outlet with openings at different sides.
Description
Technical field
The utility model relates to the EGR valve (exhaust gas recirculation valve) of vehicular engine, especially the engine electric control EGR valve of proportion electro-magnet driving.
Background technique
Exhaust gas recirculation (English EGR, the abbreviation of Exhaust Gas Recirculation), its basic principle are that air inlet is introduced in the part exhaust, improve the formation of NOx in combustion performance and the minimizing exhaust.
The EGR technology at first is applied to petrol engine abroad, is pure mechanical pneumatic type at first and is not with cool cycles
Developed the EGR of band cool cycles afterwards, engaged with electronic control technology afterwards again, then develop gas electric type or electromagnetic type egr system, in these two kinds of systems, also have the branch of feedforward control and feedback control, the feedforward control dynamic response is good, feedback control Steady-State Control best results.Nowadays be widely used on the EGR gasoline car abroad.Since the later stage seventies, goal in research is turned to diesel engine EGR technology abroad, development up to the present is very fast, but its overall application still is not so good as the such extensive maturation of petrol engine, and especially to large diesel engine, many problems are still waiting further to research and solve.
At home, also there are some colleges and universities and R﹠D institution that EGR has been made some Primary Study, but also do not develop practical electric control EGR system.
Fig. 1 is a patent documentation CN 1490513A (title: diesel exhaust recirculation cleaning system) linear solenoid valve structural representation.In this EGR valve, cycle gas suction port 6-2-1 and air outlet 6-2-8 homonymy.For the motor of big discharge capacity, large diesel engine especially, EGR valve inlet, outlet homonymy can increase the boundary dimension of valve greatly, is unfavorable for the layout on motor.
In this invention, after the coupling gear 6-5 that valve body 6-1 and valve seat 6-2 are made up of setting sleeve 6-5-1 and screw 6-5-2 is coupled to one, valve 6-4 is exposed to the external world at this union body place, when this EGR valve work, cause that easily foreign matters such as extraneous dust enter, cause work to have some setbacks, and cause the joining part insufficient strength.
Summary of the invention
In order to solve the deficiencies in the prior art, it is driving mechanism that the utility model has adopted with the proportion electro-magnet, consider that in this EGR valve if the control of the EGR signal feed back by position transducer is constituted closed loop control, thereby EGR has reached control comparatively accurately.But on some vehicular engine, the control accuracy of EGR requires not high, and the adding of position transducer then can cause EGR valve arrangement size to increase, the raising of whole cost and control wiring complicated, be unfavorable for EGR popularizing on vehicle, therefore be not with displacement transducer.
EGR device of the present utility model is the engine electric control EGR valve that a kind of proportion electro-magnet drives, comprise valve body, valve seat, valve rod, drive unit, it is characterized in that drive unit is the proportion electro-magnet assembly, install end cap additional on the proportion electro-magnet assembly, be provided with dust-proof cover between proportion electro-magnet assembly and the valve body, be filled with filler between valve rod and valve body guide hole, on valve body and Gland thermal baffle be set, valve body has adopted into and out of pore heteropleural opening.
The utility model EGR valve considers that the diesel exhaust gas pressure surge is little, and required pressure stabilizing cavity is little; When engine displacement was big, the big characteristics of EGR valve inlet, outlet bore open had adopted the EGR valve into and out of pore heteropleural opening, and profile becomes compact like this, has significantly reduced valve size radially, more helps the layout on motor.During the heteropleural opening, the valve seat upper surface exceeds valve body pressure stabilizing cavity lower surface 3～5mm, so that the gas of going out from exhaust port can pass through certain voltage stabilizing and deceleration.
In the EGR valve, valve rod is done linear reciprocating motion, and the gap between the valve body guide hole can cause leaking, and has therefore considered the motive sealing between valve rod and valve body guide rail.The utility model adopts mixes folder graphite packing wiry as sealing, to the overstocking of valve rod, reaches the effect of sealing by filler, and this filler plays lubrication to valve rod simultaneously.
In the utility model, between proportion electro-magnet assembly and valve body, be provided with dust-proof cover,, prevented that effectively foreign matters such as extraneous dust from entering in the valve by the last yoke of spring top clamping proportion electro-magnet assembly.
The utility model installs cover plate additional on the proportion electro-magnet assembly, thereby ensures that valve is able to closure when the proportion electro-magnet assembly cuts off the power supply.
Description of drawings
Fig. 1 is a patent documentation CN 1490513A (title: diesel exhaust recirculation cleaning system) linear solenoid valve structural representation.
Fig. 2 is the engine electric control EGR valve arrangement schematic representation that the utility model proportion electro-magnet drives.
Fig. 3 is a valve body plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Fig. 4 is a valve body plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Fig. 5 is that left view is cutd open in the valve body rotation in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Fig. 6 is an end cap complete section plan view (ignoring details) in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Fig. 7 is an end cap plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Fig. 8 is that the proportion electro-magnet assembly partly cuts open structural representation in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Fig. 9 is a valve rod plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Figure 10 is a valve rod plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Figure 11 goes up the yoke worm's eye view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Figure 12 goes up yoke complete section plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Figure 13 is an iron core complete section plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Figure 14 is an iron core plan view in the engine electric control EGR valve that drives of the utility model proportion electro-magnet.
Embodiment
As shown in Figure 2, the engine electric control EGR valve of the utility model proportion electro-magnet driving is made up of valve body 1, valve seat 2, valve rod 3, thermal baffle 4, electromagnet assembly 5, screw 6, end cap 7, back-up ring 8, dust-proof cover 9, spring 10, screw 11, Gland 12, filler 13 etc.
ECU (ECU (Electrical Control Unit)) is according to the input signal of sensors such as the rotating speed of motor, load, produce modulation signal voltage, make the electromagnetic coil 5-4 energising of proportion electro-magnet assembly 5 (see figure 8)s, the iron-core coil of energising attracts armature 5-5, utilize the action drive valve rod 3 (seeing Fig. 9, Figure 10) of armature 5-5 to link, arrive needed position, make a certain amount of waste gas enter intake manifold.When power cut-off, the magnetic of electromagnet disappears, and armature 5-5 and its valve rod that is linked 3 are released under the effect of end cap 7 springs.The whole control is simple open loop form.Proportion electro-magnet assembly 5 adopts DC electrical source, adds the Proportional Amplifer circuit, and the output of electric current is adjusted in control, reaches the suction size and is directly proportional with the electric current power, realizes stepless speed regulation.
During installation, after valve rod 3 inserts valve body 1, valve seat 2 is pressed into valve body 1; Filler 13 is pressed into the packing cavity in the valve body 1, adds a cover Gland 12, compresses filler 11; On top install thermal baffle 4 successively additional, spring 10, dust-proof cover 9 is fixed on the last yoke 5-10 (seeing Figure 11, Figure 12) in the proportion electro-magnet assembly 5 on the valve body 1 with screw 11; Add and load back-up ring 8, armature 5-5 is installed, add and load onto back-up ring 8; Remaining part in the proportion of installation electromagnet assembly 5 is with screw 6 fixedly on the iron core 5-3 (seeing Figure 13, Figure 14) of end cap 7 in the proportion electro-magnet assembly 5; The yoke 5-8 of flange proportion electro-magnet assembly 5, encapsulation proportion electro-magnet assembly 5.
Fig. 3, Fig. 4, shown in Figure 5 be valve body 1, assembling valve seat 2 in its lower end face.Valve body 1 lateral aperture is an EGR valve exhaust exit orifice.
Dust-proof cover 9 by the last yoke 5-10 in the spring top clamping proportion electro-magnet assembly 5, makes the part valve rod 3 that is positioned at it and the extraneous heat of carrying out when transmitting, and prevents that the dust etc. in the EGR valve surrounding environment from entering in the valve.
Fig. 6, Fig. 7 are end cap 7, are fixed on the proportion electro-magnet assembly 5 by screw 6.2 jacks on it are the drive signal access port of proportion electro-magnet assembly 5.The spring of end cap 7 plays the return effect of valve, thereby valve is got back to closed condition when guaranteeing power cut-off.
Fig. 8 is a proportion electro-magnet assembly 5, requires to carry out at last the operation of yoke 5-8 flange, carries out the overall encapsulation of EGR valve.Wherein, 5-1 is an antifreeze plate, and 5-2 is a lighting outlet, and 5-3 is an iron core, and 5-4 is a coil, and 5-5 is an armature, and 5-6 is an encapsulating compound, and 5-7 is a magnetic shield, and 5-8 is a yoke, and 5-9 is a skeleton, and 5-10 is last yoke.
Fig. 9, Figure 10 are valve rod 3, have the mounting groove of back-up ring 8 on the axle, and its configuration design takes into account heat conduction and assembling needs.
Claims (7)
1. the engine electric control EGR valve that drives of a proportion electro-magnet, comprise valve body, valve seat, valve rod, drive unit, it is characterized in that: drive unit is proportion electro-magnet assembly (5), install end cap (7) on the proportion electro-magnet assembly (5) additional, be provided with dust-proof cover (9) between proportion electro-magnet assembly (5) and the valve body (1), be filled with filler (13) between valve rod (3) and valve body (1) guide hole, on valve body (1) and Gland (12) thermal baffle (4) is set, valve body (1) has adopted into and out of pore heteropleural opening.
2. the engine electric control EGR valve that a kind of proportion electro-magnet as claimed in claim 1 drives, it is characterized in that: on proportion electro-magnet assembly (5), install end cap (7) additional, be fixed on the proportion electro-magnet assembly (5) by screw (6), 2 jacks on it are the drive signal access port of proportion electro-magnet assembly (5), and the spring of end cap (7) plays the return effect of valve.
3. the engine electric control EGR valve that a kind of proportion electro-magnet as claimed in claim 1 or 2 drives, it is characterized in that: valve rod (3) is fixed on the armature (5-5) of proportion electro-magnet assembly (5) by back-up ring (8).
4. the engine electric control EGR valve that a kind of proportion electro-magnet as claimed in claim 1 or 2 drives, it is characterized in that: be provided with dust-proof cover (9) between proportion electro-magnet assembly (5) and valve body (1), hold out against the last yoke (5-10) of proportion electro-magnet assembly (5) by spring (10).
5. the engine electric control EGR valve that a kind of proportion electro-magnet as claimed in claim 1 or 2 drives is characterized in that: the filler (13) of filling is for mixing folder graphite packing wiry between valve rod (3) and valve body (1) guide hole.
6. the engine electric control EGR valve that a kind of proportion electro-magnet as claimed in claim 1 or 2 drives is characterized in that: on valve body (1) and Gland (12) thermal baffle (4) is set and is composited for sheet metal adds thermal-protective material.
7. the engine electric control EGR valve that a kind of proportion electro-magnet as claimed in claim 1 or 2 drives, it is characterized in that: valve body (1) has adopted into and out of pore heteropleural opening, and valve seat (2) upper surface will exceed valve body (1) pressure stabilizing cavity lower surface 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004200824624U CN2720134Y (en) | 2004-09-01 | 2004-09-01 | Engine electric-control EGR valve driven by proportional electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004200824624U CN2720134Y (en) | 2004-09-01 | 2004-09-01 | Engine electric-control EGR valve driven by proportional electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720134Y true CN2720134Y (en) | 2005-08-24 |
Family
ID=35009095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004200824624U Expired - Fee Related CN2720134Y (en) | 2004-09-01 | 2004-09-01 | Engine electric-control EGR valve driven by proportional electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720134Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949340A (en) * | 2010-03-11 | 2011-01-19 | 哈尔滨安龙迪环保科技有限公司 | Electrical control EGR valve for reducing working temperature and improving working reliability |
| CN102337987A (en) * | 2011-10-19 | 2012-02-01 | 黄山市汽车电器股份公司 | EGR (exhaust air recirculation) linear valve for automobile |
| CN103185162A (en) * | 2011-12-29 | 2013-07-03 | 浙江三花股份有限公司 | Solenoid valve as well as manufacturing method thereof and bolt assembly |
| CN105971778A (en) * | 2016-07-28 | 2016-09-28 | 无锡隆盛科技股份有限公司 | Sealing heat-insulation gasket applied to electric EGR valve |
-
2004
- 2004-09-01 CN CN2004200824624U patent/CN2720134Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949340A (en) * | 2010-03-11 | 2011-01-19 | 哈尔滨安龙迪环保科技有限公司 | Electrical control EGR valve for reducing working temperature and improving working reliability |
| CN101949340B (en) * | 2010-03-11 | 2019-02-22 | 哈尔滨安龙迪环保科技有限公司 | A kind of electric control EGR valve for reducing operating temperature and improving functional reliability |
| CN102337987A (en) * | 2011-10-19 | 2012-02-01 | 黄山市汽车电器股份公司 | EGR (exhaust air recirculation) linear valve for automobile |
| CN103185162A (en) * | 2011-12-29 | 2013-07-03 | 浙江三花股份有限公司 | Solenoid valve as well as manufacturing method thereof and bolt assembly |
| CN103185162B (en) * | 2011-12-29 | 2016-07-06 | 浙江三花股份有限公司 | Electromagnetic valve and manufacture method thereof and screw assembly |
| CN105971778A (en) * | 2016-07-28 | 2016-09-28 | 无锡隆盛科技股份有限公司 | Sealing heat-insulation gasket applied to electric EGR valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101892912A (en) | Non-contact electronic throttle | |
| CN2720134Y (en) | Engine electric-control EGR valve driven by proportional electromagnet | |
| CN2720133Y (en) | Engine-electric-control EGR valve of belt-position sensor driven by proportional electromagnet | |
| WO2014102133A1 (en) | Compressed-gas bypass valven | |
| CN201747466U (en) | Non-contact electronic throttle valve | |
| CN2690611Y (en) | Throttle control heat dissipation device | |
| CN1776265A (en) | Electromagnetic valve for flow control | |
| CN100492874C (en) | Diesel engine linear electric motor speed regulating actuator | |
| CN2755297Y (en) | Electrically-controlled EGR valve of engine with step-by-step motor driven | |
| CN200978723Y (en) | Vacuum idling hoisting device | |
| CN205532891U (en) | Electric air damper | |
| CN2627313Y (en) | Rectilinear motor-driven exhaust gas recirculation valve | |
| CN2756846Y (en) | Engine electric control EGR valve driven by step motor with return spring | |
| CN201687621U (en) | Electric oil delivery pump system of diesel engine | |
| CN110541787B (en) | Hydraulic motor with multiplied displacement without changing radial size of motor | |
| CN201884146U (en) | Assembled electric EGR (Exhaust Gas Recirculation) valve | |
| CN201554561U (en) | Exhaust gas recirculating valve of engine driven by rotary-type ratio electromagnet | |
| CN1076304A (en) | The energy transform device that is used for machinery control | |
| CN200982232Y (en) | Push type vacuum oil-stopping device | |
| CN213654987U (en) | Diesel generating set with voltage and rotating speed automatic regulating function | |
| CN201391365Y (en) | Electric air damper | |
| KR20030060469A (en) | Linear type generating system directly drived by rectilinear reciprocating motion engine | |
| CN2837531Y (en) | Automobile power regulator | |
| CN214092051U (en) | Integrated throttle valve body assembly | |
| CN206071780U (en) | A kind of mechanical engine assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |