CN103707505B - A kind of EGR valve diaphragm plate riveted structure - Google Patents
A kind of EGR valve diaphragm plate riveted structure Download PDFInfo
- Publication number
- CN103707505B CN103707505B CN201310722517.7A CN201310722517A CN103707505B CN 103707505 B CN103707505 B CN 103707505B CN 201310722517 A CN201310722517 A CN 201310722517A CN 103707505 B CN103707505 B CN 103707505B
- Authority
- CN
- China
- Prior art keywords
- diaphragm plate
- valve rod
- top board
- elastic diaphragm
- upper cover
- 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.)
- Active
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The present invention relates to a kind of EGR valve diaphragm plate riveted structure, comprise upper cover, with the elastic diaphragm plate of upper cover composition vacuum chamber, run through the valve rod of elastic diaphragm plate, be set in the top board on valve rod, two ends prop up the stage clip on upper cover and top board respectively, are provided with the rivet of connection function between described valve rod and top board; Described top board is placed on above elastic diaphragm plate, and described elastic diaphragm plate is set on valve rod by interference fit.The present invention effectively can solve existing EGR valve diaphragm plate riveted structure needs larger riveting pressure just can reach without gas leakage requirement, distortion is produced when easily making valve rod rivet, cause the underproof problem of properties of product, and structure is simple, can effectively save production cost, enhance productivity, EGR valve diaphragm plate riveted structure field can be widely used in.
Description
Technical field
The present invention relates to a kind of EGR valve, particularly relate to a kind of EGR valve diaphragm plate riveted structure.
Background technology
EGR is the triliteral abbreviation of English ExhaustGasRecirculation, is meant to gas recirculation system.The ERG valve of our research and development is the important component parts in gas recirculation system.EGR valve door is mounted on enmgine exhaust, the portion that engine is discharged is introduced engine to mix with fresh air and reduce ignition temperature and internal cylinder pressure, thus set by the oxynitrides NOx reaching one of pernicious gas in control engine exhaust can the device of purifying automobile tail gas.
EGR valve door kind is a lot, wherein mechanical type EGR valve use the earliest, the most extensive, mechanical type EGR valve operation principle: when automobile engine operationally vacuumizes valve vacuum chamber, it is made to produce the vacuum of moment, the valve port of exhaust gas recirculation valve is opened, the waste gas part that engine is discharged sends back to the air inlet pipe of engine again by the air admission hole of exhaust gas recirculation valve, again enter cylinder participate in burning with ozone after mixing.Because nitrogen and oxygen only just chemical reaction can occur under high-temperature and high-pressure conditions, as long as the temperature and pressure of engine combustion indoor can not meet its formation condition, the generation of NOx just can be stoped.Containing a large amount of CO2 in the waste gas that automobile is got rid of, and CO2 can not burn, but a large amount of heat can be absorbed, thus the maximum temperature of mist burning in cylinder is reduced, decrease the growing amount of NOx in combustion process, reduce the content of NOx in waste gas, thus alleviate exhaust emission, reach the limit value requirement of Abgasgesetz to NOx in exhaust.
Form an airtight vacuum chamber, need upper cover and diaphragm plate to rivet leak-tight gas, without gas leakage after the riveted joint of diaphragm plate, pressing plate, pad, valve rod.In prior art, what the riveted joint of usual diaphragm plate, valve rod adopted is upper and lower two pressing plates of diaphragm plate, two gasket constructions, now diaphragm plate is matched in clearance with coordinating of valve rod, by lower platen presses against diaphragm plate upper during riveted joint, diaphragm plate is out of shape and reaches gapless, without gas leakage requirement, but there is larger drawback in this kind of riveting method: need larger riveting pressure just can reach without gas leakage requirement, produce distortion when easily making valve rod rivet, cause the defective of properties of product.
Summary of the invention
The object of this invention is to provide a kind of EGR valve diaphragm plate riveted structure, solving existing EGR valve diaphragm plate riveted structure needs larger riveting pressure just can reach without gas leakage requirement, produces distortion, cause the underproof problem of properties of product when easily making valve rod rivet.
The technical solution adopted for the present invention to solve the technical problems is: a kind of EGR valve diaphragm plate riveted structure, comprise upper cover, with the elastic diaphragm plate of upper cover composition vacuum chamber, run through the valve rod of elastic diaphragm plate, be set in the top board on valve rod, two ends prop up the stage clip on upper cover and top board respectively, are provided with the rivet of connection function between described valve rod and top board; Described top board is placed on above elastic diaphragm plate, and described elastic diaphragm plate is set on valve rod by interference fit.
Preferably, described valve rod upper end is provided with limited step, described elastic diaphragm sleeve-board is arranged near limited step lower edge, described limited step is provided with the pad suitable with valve rod, described elastic diaphragm plate is provided with the resettlement groove suitable with pad, and described pad to be placed in resettlement groove and to contact with top board.
Preferably, described elastic diaphragm plate is diaphragm of rubber plate.
Beneficial effect of the present invention: be interference fit by the matching design of diaphragm plate between valve rod, now valve rod is riveted, rivet is only needed to provide a less rivet force to valve rod, just can ensure that top board can not jump up and down or come off, this kind of structure not only ensure that the sealing of product vacuum chamber, and valve rod also can be avoided to be out of shape because rivet force is excessive.The design of limited step, pad, resettlement groove, makes product structure design more reasonable, ensures reliability and the service life of properties of product.Diaphragm of rubber plate has high temperature resistant, corrosion-resistant, waterproof etc. advantage, can meet use needs, makes structure more reasonable further, improves the performance of product.Said structure structure has as compared with the past used a cover plate and a pad less simultaneously, provides cost savings, can effectively increase the benefit.
The present invention effectively can solve existing EGR valve diaphragm plate riveted structure needs larger riveting pressure just can reach without gas leakage requirement, produce distortion when easily making valve rod rivet, cause the underproof problem of properties of product, and structure is simple, effectively can save production cost, enhance productivity.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Embodiment: as shown in Figure 1, a kind of EGR valve diaphragm plate riveted structure, comprise upper cover 1, the elastic diaphragm plate 2 of vacuum chamber is formed with upper cover 1, run through the valve rod 3 of elastic diaphragm plate 2, be set in the top board 4 on valve rod 3, two ends prop up the stage clip 5 on upper cover 1 and top board 4 respectively, are provided with the rivet 6 of connection function between described valve rod 3 and top board 4; Described top board 4 is placed on above elastic diaphragm plate 2, and described elastic diaphragm plate 2 is set on valve rod 3 by interference fit.Described valve rod 3 upper end is provided with limited step 7, described elastic diaphragm plate 2 overlaps and arranges near limited step 7 lower edge, described limited step 7 is provided with the pad 8 suitable with valve rod, described elastic diaphragm plate 2 is provided with the resettlement groove 9 suitable with pad 8, and described pad 8 to be placed in resettlement groove 9 and to contact with top board 4.Described elastic diaphragm plate 2 is diaphragm of rubber plate.
Claims (2)
1. an EGR valve diaphragm plate riveted structure, comprise upper cover (1), with the elastic diaphragm plate (2) of upper cover (1) composition vacuum chamber, run through the valve rod (3) of elastic diaphragm plate (2), be set in the top board (4) on valve rod (3), two ends prop up the stage clip (5) on upper cover (1) and top board (4) respectively, it is characterized in that: the rivet (6) being provided with connection function between described valve rod (3) and top board (4), described top board (4) is placed on elastic diaphragm plate (2) top, described elastic diaphragm plate (2) is set on valve rod (3) by interference fit, described valve rod (3) upper end is provided with limited step (7), described elastic diaphragm plate (2) cover is arranged near limited step (7) lower edge, described limited step (7) is provided with the pad (8) suitable with valve rod, described elastic diaphragm plate (2) is provided with the resettlement groove (9) suitable with pad (8), and described pad (8) to be placed in resettlement groove (9) and to contact with top board (4).
2. EGR valve diaphragm plate riveted structure according to claim 1, is characterized in that: described elastic diaphragm plate (2) is diaphragm of rubber plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722517.7A CN103707505B (en) | 2013-12-20 | 2013-12-20 | A kind of EGR valve diaphragm plate riveted structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310722517.7A CN103707505B (en) | 2013-12-20 | 2013-12-20 | A kind of EGR valve diaphragm plate riveted structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103707505A CN103707505A (en) | 2014-04-09 |
| CN103707505B true CN103707505B (en) | 2016-03-02 |
Family
ID=50401036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310722517.7A Active CN103707505B (en) | 2013-12-20 | 2013-12-20 | A kind of EGR valve diaphragm plate riveted structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103707505B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19703169A1 (en) * | 1997-01-29 | 1998-07-30 | Pierburg Ag | Exhaust gas recirculation control valve used with internal combustion engine |
| CN202789205U (en) * | 2012-09-28 | 2013-03-13 | 昌辉汽车电器（黄山）股份公司 | Automobile exhaust recycling valve with sensor |
| CN203611469U (en) * | 2013-12-20 | 2014-05-28 | 昌辉汽车电器（黄山）股份公司 | Diaphragm plate riveting structure for ERG valve |
-
2013
- 2013-12-20 CN CN201310722517.7A patent/CN103707505B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19703169A1 (en) * | 1997-01-29 | 1998-07-30 | Pierburg Ag | Exhaust gas recirculation control valve used with internal combustion engine |
| CN202789205U (en) * | 2012-09-28 | 2013-03-13 | 昌辉汽车电器（黄山）股份公司 | Automobile exhaust recycling valve with sensor |
| CN203611469U (en) * | 2013-12-20 | 2014-05-28 | 昌辉汽车电器（黄山）股份公司 | Diaphragm plate riveting structure for ERG valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103707505A (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202125377U (en) | EGR (Exhaust Gas Recircualtion) system of diesel engine | |
| CN103758630A (en) | Natural gas engine, and combustion system and combustion method for natural gas engine | |
| CN203611469U (en) | Diaphragm plate riveting structure for ERG valve | |
| CN103707505B (en) | A kind of EGR valve diaphragm plate riveted structure | |
| CN202273776U (en) | Exhaust gas recirculation (EGR) structure of diesel engine | |
| CN200985843Y (en) | One-way valve | |
| CN213510951U (en) | Diesel engine intake and exhaust system with heat management function | |
| CN208619247U (en) | A kind of V-type EGR engine multichannel exhaust gas attachment device | |
| CN202690260U (en) | Device for utilizing heat of tail gas from internal combustion engine | |
| CN1644909A (en) | IC steaming power equipments | |
| CN209039049U (en) | Reformation hydrogen production temperature control system | |
| CN203948199U (en) | A kind of EGR system | |
| CN201747482U (en) | Air mixing structure in exhaust gas recirculation system | |
| CN206397622U (en) | Engine assembly | |
| CN201218150Y (en) | Feedback control type exhaust gas recirculation valve for cars | |
| CN107882632B (en) | Engine and vehicle | |
| CN205481044U (en) | Big amount of wind waste gas burning discharging equipment | |
| CN204877723U (en) | Exhaust gas recirculation system | |
| CN202500679U (en) | Engine exhaust gas recirculation system | |
| CN208749438U (en) | A kind of tonifying Qi muffler | |
| CN208803913U (en) | A kind of air injection reaction channel cylinder head | |
| CN209781060U (en) | Novel combustion system for diesel engine | |
| CN204082390U (en) | The linkage structure of EGR waste gas honeycomb duct and EGR valve and plastic air intake manifold | |
| CN204200305U (en) | A kind of two-way air vent valve of gas handling system band closure multi-cylinder engine crankcase | |
| CN204126783U (en) | Inlet manifold assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |