CN107313880A - A kind of automobile EGR valve structure - Google Patents
A kind of automobile EGR valve structure Download PDFInfo
- Publication number
- CN107313880A CN107313880A CN201710779931.XA CN201710779931A CN107313880A CN 107313880 A CN107313880 A CN 107313880A CN 201710779931 A CN201710779931 A CN 201710779931A CN 107313880 A CN107313880 A CN 107313880A
- Authority
- CN
- China
- Prior art keywords
- egr valve
- receiving cavity
- sensor
- valve body
- automobile
- 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.)
- Pending
Links
- 239000007789 gas Substances 0.000 claims abstract description 10
- 239000002912 waste gas Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 230000006978 adaptation Effects 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/48—EGR valve position sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/55—Systems for actuating EGR valves using vacuum actuators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Fluid-Driven Valves (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of automobile EGR valve structure, including EGR valve body, EGR valve body includes valve vacuum chamber, valve rod, exhaust gas inlet, waste gas outlet, in addition to the sensor being connected with EGR valve body, and sensor is used for according to the optimal EGR amount of the operating mode adjust automatically EGR valve body of engine.The present invention can effectively solve the problem that existing automobile EGR valve structure under the external factors such as automobile vibration, pressure change, EGR valve EGR amount can be caused to occur uncontrollable change, so that the problem of influenceing the traveling of automobile.
Description
Technical field
The present invention relates to a kind of automobile EGR valve structure.
Background technology
Traditional EGR valve is by vacuum chamber, to drive stem movement, with the opening aperture of this control valve,
So as to control tail gas to enter combustion chamber, the temperature and pressure of combustion chamber are reduced, to reduce the growing amount of nitrogen oxide.But it is traditional
GER valves can cause EGR valve EGR amount to occur uncontrollable change under the external factors such as automobile vibration, pressure change, so that
Influence the traveling of automobile.
The content of the invention
It is an object of the invention to provide a kind of automobile EGR valve structure, existing automobile is solved with EGR valve structure in automobile
Under the external factors such as vibration, pressure change, EGR valve EGR amount can be caused to occur uncontrollable change, so as to influence the row of automobile
The problem of sailing.
The technical solution adopted for the present invention to solve the technical problems is：A kind of automobile EGR valve structure, including EGR valve
Body, EGR valve body includes valve vacuum chamber, valve rod, exhaust gas inlet, waste gas outlet, in addition to the sensing being connected with EGR valve body
Device, sensor is used for according to the optimal EGR amount of the operating mode adjust automatically EGR valve body of engine.
Further, sensor includes being provided with the first receiving cavity and the second receiving cavity in shell, shell, and first holds
Receive and connection air flue is provided between cavity and the second receiving cavity；It is provided with coil bag, coil bag and sets in first receiving cavity
It is equipped with and is provided with and connects the first stomata that air flue connects in the iron core being adapted to it, iron core, the top of iron core is provided with and it
The piston of adaptation, the top of the first receiving cavity be provided be provided with blanking cover, blanking cover connected with the first receiving cavity take out true
Emptying aperture, is provided with the first stage clip between piston and iron core；The top of second receiving cavity is provided with lid, the second receiving cavity
It is provided with outside the second stomata for being provided with and being connected with connection air flue in copper core, copper core, copper core and is arranged with the second stage clip, copper core
Top is provided with the diaphragm plate being adapted with the second receiving cavity top end opening, sensor is formed between diaphragm plate and lid true
It is provided with the pressure port connected with sensor vacuum room, the exhaust gas inlet of EGR valve body and is provided with and pressure on empty room, lid
The tracheae that hole pipeline connects, the bottom of the second receiving cavity is also opened in the connecting hole communicated with external pressure；Connect gas
The air inlet connected with valve vacuum chamber pipeline is provided with road；The bottom of shell the first receiving cavity of correspondence is provided with voltage signal
Input port, coil wraps the voltage signal reception bar for being provided with device on voltage signal inputs mouthful.
Further, the through hole for being provided with and being adapted to copper core in filter, filter is additionally provided with the second receiving cavity,
Second recoil press spring is set in outside filter, bottom interior wall, the inwall phase of diaphragm plate of its two ends respectively with the second receiving cavity
Support；Connecting hole is arranged on the bottom of filter.
Further, the upper end of coil bag is provided with the locating slot being adapted to the first stage clip, and piston is in the form of annular discs, the first pressure
The one side of bottom interior wall, piston just to iron core of the two ends of spring respectively with locating slot offsets.
Beneficial effects of the present invention：By installing sensor additional on EGR valve body so that EGR valve can be according to engine
Operating mode is automatically adjusted to optimal EGR amount, it is to avoid automobile is because of external factors such as vibration, pressure changes so as to influenceing the row of automobile
Sail.
Below with reference to drawings and examples, the present invention is described in detail.
Brief description of the drawings
Fig. 1 is the structural representation of sensor of the present invention.
Fig. 2 is structural representation of the invention
Embodiment
A kind of embodiment, automobile EGR valve structure, including EGR valve body 1 as shown in Figure 1 and Figure 2, EGR valve body 1 includes
Valve vacuum chamber 2, valve rod 3, exhaust gas inlet 4, waste gas outlet 5, in addition to the sensor 7 being connected with EGR valve body 1, sensor 7 are used
In the EGR amount that the operating mode adjust automatically EGR valve body 1 according to engine is optimal.
Sensor 7 includes being provided with the first receiving cavity 9 and the second receiving cavity 10 in shell 8, shell 8, and first accommodates
Connection air flue 11 is provided between the receiving cavity 10 of cavity 9 and second；Coil bag 12, coil are provided with first receiving cavity 9
The first stomata 14 for being provided with and being connected with connection air flue 11 in the iron core 13 being adapted to it, iron core 13, iron are provided with bag 12
The top of core 13 is provided with the piston 15 being adapted to the first stomata 14, and the top of the first receiving cavity 9 is provided with blanking cover 16, blanking cover
The connection of the first receiving cavity 9 is provided with 16 vacuumizes hole 17, and the first stage clip 18 is provided between piston 15 and iron core 13；The
The top of two receiving cavity 10 be provided with lid 19, the second receiving cavity 10 be provided with copper core 20, copper core 20 be provided with and
It is arranged with the second stage clip 21 outside the second stomata 31 for being connected of connection air flue 11, copper core 20, the top of copper core 20 is provided with and the
The diaphragm plate 22 that the top end opening of two receiving cavity 10 is adapted, forms sensor vacuum room between diaphragm plate 22 and lid 19
23, it is provided with the pressure port 24 connected with sensor vacuum room 23, the exhaust gas inlet 4 of EGR valve body 1 on lid 19 and is provided with
The tracheae 25 connected with the pipeline of pressure port 24, the bottom of the second receiving cavity 10 is also opened in the company communicated with external pressure
Connect hole 26；The air inlet 27 connected with the pipeline of valve vacuum chamber 2 is provided with connection air flue 11；The first receiving cavity 9 of correspondence of shell 8
Bottom be provided with voltage signal inputs mouthfuls 28, coil bag 12 and be provided with voltage of the device on voltage signal inputs mouthful
Signal receives bar 29.Bushing 6 is provided with valve rod 3.
The through hole for being provided with and being adapted to copper core in filter 30, filter 30 is additionally provided with second receiving cavity 10, the
Two stage clips 21 are set in outside filter 30, its two ends bottom interior wall respectively with the second receiving cavity 10, the inwall of diaphragm plate 22
Offset；Connecting hole 26 is arranged on the bottom of filter 30.Connecting hole 26 is same in the second receiving cavity 10 with filter 30, the
Two receiving cavity 10 have open outside atmospheric pressure to be connected in the bottom of filter 30, and the effect of filter 30 is mainly filtering
Impurity in air
The upper end of coil bag 12 is provided with the locating slot being adapted to the first stage clip 18, and piston 15 is in the form of annular discs, the first stage clip
The one side of bottom interior wall, piston 15 just to iron core 13 of 18 two ends respectively with locating slot offsets.
Operation principle：Iron core is pressed on shell, inactive, and iron core is mainly produced in the case of coil electricity
Raw electromagnetic force, so as to discoid one absorption affinity of piston so that the top of piston movement to iron core, closes the first stomata.No
(nature) piston remote iron core in the presence of pressure spring force during energization, so as to open the first stomata.
Copper core presses on shell, inactive, and the opening and closing of the second stomata is to passing according to the change working of automobile
The pressure of sensor vacuum chamber controls the motion of barrier film.When the pressure of sensor vacuum room is big, diaphragm movement to copper core top
Close the second stomata；When the pressure of sensor vacuum room becomes small, diaphragm plate remote copper core top in the presence of pressure spring force, from
And open the second stomata.
EGR valve vacuum chamber is connected with sensor air inlet, tracheae is connected with cell pressure hole.By being taken out to sensor
Gas, so as to be vacuumized to valve vacuum chamber, the stomata being simultaneously connected in air has portion of air with sensing
Device is vacuumized enters sensor by copper core and connecting hole, with the aperture between this Comprehensive Control valve rod and bushing so that waste gas
Into combustion chamber.
When engine speed is improved, the increase of EGR valve waste gas inlet pressure, portion is from tracheae flow sensor vacuum
Room, now sensor vacuum chamber pressure increase, diaphragm plate is moved upwards, seals copper core.Now into sensor from air
Air capacity is reduced, and the vacuum of EGR valve vacuum chamber can increase therewith, and valve rod is moved upwards, EGR amount lifting.
When engine speed declines, EGR valve waste gas inlet pressure reduces, and sensor vacuum chamber pressure reduces therewith, every
Diaphragm plate is moved downward, and is separated with copper core, is no longer sealed, and now the air capacity into sensor from air is increased, EGR valve vacuum
The vacuum of room can reduce therewith, and valve rod is moved downward, EGR amount reduction.
When idling, underload or warming-up, signal voltage is provided, coil bag is powered, piston starts, to left movement, to seal iron
Core, now EGR valve be stopped.When big load, high speed or throttle wide, signal voltage is provided, coil bag is powered, and piston is opened
Begin, to left movement, to seal iron core, now EGR valve is stopped.
The present invention is exemplarily described above in association with accompanying drawing.Obviously, the present invention is implemented not by above-mentioned side
The limitation of formula.As long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (4)
1. a kind of automobile EGR valve structure, including EGR valve body, EGR valve body include valve vacuum chamber, valve rod, exhaust gas inlet,
Waste gas outlet, it is characterised in that：Also include the sensor being connected with EGR valve body, sensor is used for the operating mode according to engine
The optimal EGR amount of adjust automatically EGR valve body.
2. automobile according to claim 1 EGR valve structure, it is characterised in that：Sensor includes setting in shell, shell
There are the first receiving cavity and the second receiving cavity, connection air flue is provided between the first receiving cavity and the second receiving cavity；The
It is provided with to be provided with the iron core being adapted to it, iron core in coil bag, coil bag in one receiving cavity and is provided with and connects air flue
The first stomata being connected, the top of iron core is provided with the piston being adapted to it, and the top of the first receiving cavity is provided with blanking cover,
Be provided with blanking cover connected with the first receiving cavity vacuumize hole, the first stage clip is provided between piston and iron core；Second holds
Receive cavity top be provided with lid, the second receiving cavity be provided with copper core, copper core be provided with connection air flue be connected
The second stomata, be arranged with the second stage clip outside copper core, the top of copper core is provided with to be adapted with the second receiving cavity top end opening
Diaphragm plate, formed between diaphragm plate and lid and be provided with what is connected with sensor vacuum room on sensor vacuum room, lid
The tracheae connected with pressure port pipeline is provided with pressure port, the exhaust gas inlet of EGR valve body, the bottom of the second receiving cavity is also
It is opened in the connecting hole communicated with external pressure；The air inlet connected with valve vacuum chamber pipeline is provided with connection air flue；
The bottom of shell the first receiving cavity of correspondence is provided with voltage signal inputs mouthful, and coil, which is wrapped, is provided with device in voltage signal
Voltage signal on input port receives bar.
3. automobile according to claim 2 EGR valve structure, it is characterised in that：It was additionally provided with second receiving cavity
The through hole being adapted to copper core is provided with filter, filter, the second recoil press spring is set in outside filter, its two ends is respectively with the
The bottom interior wall of two receiving cavity, the inwall of diaphragm plate offset；Connecting hole is arranged on the bottom of filter.
4. the EGR valve structure of the automobile according to Claims 2 or 3, it is characterised in that：The upper end of coil bag is provided with and
The locating slot of one stage clip adaptation, piston is in the form of annular discs, and the two ends of the first stage clip bottom interior wall respectively with locating slot, piston are just right
The one side of iron core offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779931.XA CN107313880A (en) | 2017-09-01 | 2017-09-01 | A kind of automobile EGR valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779931.XA CN107313880A (en) | 2017-09-01 | 2017-09-01 | A kind of automobile EGR valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107313880A true CN107313880A (en) | 2017-11-03 |
Family
ID=60176706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779931.XA Pending CN107313880A (en) | 2017-09-01 | 2017-09-01 | A kind of automobile EGR valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878267A (en) * | 2020-08-24 | 2020-11-03 | 昌辉汽车电器（黄山）股份公司 | Structure for reducing valve gas flow leakage in EGR valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069797A (en) * | 1975-06-24 | 1978-01-24 | Toyota Jidosha Kogyo Kabushiki Kaisha | Apparatus for recirculating exhaust gases |
| CN2844465Y (en) * | 2005-09-20 | 2006-12-06 | 上海中欧拓展实业有限公司 | Waste-gas re-circulating valve |
| CN201560863U (en) * | 2009-10-30 | 2010-08-25 | 南京申华汽车电子有限公司 | Vacuum control sensor |
| CN203022891U (en) * | 2012-11-28 | 2013-06-26 | 昌辉汽车电器（黄山）股份公司 | Diaphragm plate type idle speed control valve |
| CN105370451A (en) * | 2015-12-04 | 2016-03-02 | 广西玉柴机器股份有限公司 | Recirculation system of diesel engine waste gas |
| CN207568730U (en) * | 2017-09-01 | 2018-07-03 | 昌辉汽车电器（黄山）股份公司 | A kind of automobile EGR valve structure |
-
2017
- 2017-09-01 CN CN201710779931.XA patent/CN107313880A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069797A (en) * | 1975-06-24 | 1978-01-24 | Toyota Jidosha Kogyo Kabushiki Kaisha | Apparatus for recirculating exhaust gases |
| CN2844465Y (en) * | 2005-09-20 | 2006-12-06 | 上海中欧拓展实业有限公司 | Waste-gas re-circulating valve |
| CN201560863U (en) * | 2009-10-30 | 2010-08-25 | 南京申华汽车电子有限公司 | Vacuum control sensor |
| CN203022891U (en) * | 2012-11-28 | 2013-06-26 | 昌辉汽车电器（黄山）股份公司 | Diaphragm plate type idle speed control valve |
| CN105370451A (en) * | 2015-12-04 | 2016-03-02 | 广西玉柴机器股份有限公司 | Recirculation system of diesel engine waste gas |
| CN207568730U (en) * | 2017-09-01 | 2018-07-03 | 昌辉汽车电器（黄山）股份公司 | A kind of automobile EGR valve structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878267A (en) * | 2020-08-24 | 2020-11-03 | 昌辉汽车电器（黄山）股份公司 | Structure for reducing valve gas flow leakage in EGR valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |