CN107166047A - Abrasionproof valve element for low pressure EGR valve - Google Patents
Abrasionproof valve element for low pressure EGR valve Download PDFInfo
- Publication number
- CN107166047A CN107166047A CN201710597571.1A CN201710597571A CN107166047A CN 107166047 A CN107166047 A CN 107166047A CN 201710597571 A CN201710597571 A CN 201710597571A CN 107166047 A CN107166047 A CN 107166047A
- Authority
- CN
- China
- Prior art keywords
- valve
- rotating shaft
- inner lining
- driven gear
- metal inner
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000006735 deficit Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 241000196259 Ulva pertusa Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of abrasionproof valve element for low pressure EGR valve, including the rotating shaft being arranged in valve body, the bottom of rotating shaft is provided with to coordinate with body cavity by screw realizes the valve block that EGR valve is turned on and off, and the top of rotating shaft is connected with driven gear component；The diameter of the valve block is less than the boss that gap between sealing valve plate and body cavity is provided with the diameter of body cavity, valve interior wall when correspondence valve block is in the closed position；The driven gear component is embedded with the metal inner lining with driven gear component injection molding, and the center of metal inner lining offers the through hole through rotating shaft, is welded as a whole between rotating shaft and metal inner lining.The present invention can be prevented effectively from valve block in action process and be contacted with valve interior wall, also avoid the generation of valve block and valve interior wall degree of impairment；The boss having dislocation by being set on the inwall of valve body, can make reliable contacts of the valve block when closed with boss, it is ensured that the sealing property requirement of EGR valve.
Description
Technical field
The present invention relates to the EGR valve technical field of gasoline engine exhaust recirculating system, particularly a kind of low pressure EGR valve
Auxiliary body.
Background technology
With energy increasingly depleted, country requires automobile fuel consumption more and more higher, and conventional EGR valve is mainly used in diesel oil hair
In motivation, effect is to reduce particulate matter and NOx discharge, but going deep into research, is found when it is applied in gasoline engine hair
During motivation field, discharge can be more excellent after assembling EGR valve, and most critical can be remarkably decreased for oil consumption.It is real according to external authoritative institution
Test and show, cool down EGR valve system with DC motor Driver band, oil consumption 5%-8% even more highs, base can be saved according to engine difference
In current gasoline engine in the basic crack of Chinese passenger car, EGR valve is used can be more and more extensive.
It is point of no high-low pressure for traditional naturally aspirated engine, is divided into the gasoline engine EGR with turbocharger
High pressure EGR and low pressure EGR.Take gas to be referred to as high pressure EGR before pinch roller, gas referred to as low pressure EGR is taken after turbine.Current high pressure
EGR valve has criticized production, and the advantage of high pressure EGR valve is not damaged, air higher additionally, due to pressure for pinch roller and charge air cooler
Flow velocity is higher, makes EGR reaction rates high, but high pressure EGR does not cover Ulva Pertusa region, and cost is higher than low pressure EGR in addition
Valve.And the advantage of low pressure EGR be vented by pinch roller, charge air cooler, be evenly distributed in cylinder, thus cylinder ratio of combustion compared with
Uniformly, the burning uniformity of each cylinder is preferable.
Applied to the low pressure EGR valve of gasoline engine, including valve body, sensor unit, transmission system, return structure system and
Sealing system etc. five is most of, and the structure of each section all plays vital effect to the overall performance of valve.Low pressure EGR valve
Valve body in rotating shaft is installed, the top of rotating shaft is mutually equipped with the driven gear component of transmission system, and the bottom of rotating shaft is provided with
The valve block coordinated with valve body, to ensure sealing property, uses linear sealing between valve block and valve body, namely in the fully closed shape of EGR valve
Under state, valve block can be contacted with the inwall of valve body, and abrasion occurs in the acute angle on valve block, and valve inner, which also occurs, damages, long and
It, inevitably results in the problems such as valve block is stuck, scrap drops and leakage rate is big and occurs, reduce the service life of EGR valve long.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of abrasionproof valve element of low pressure EGR valve, can avoid valve block
On the premise of being contacted in action process with valve interior wall, it is ensured that the sealing property of EGR valve.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
For the abrasionproof valve element of low pressure EGR valve, including the rotating shaft being arranged in valve body, the bottom of rotating shaft is installed by screw
Have to coordinate with body cavity and realize the valve block that EGR valve is turned on and off, the top of rotating shaft and the driven gear component of EGR valve connect
Connect；The diameter of the valve block, which is less than on the diameter of body cavity, valve interior wall when correspondence valve block is in the closed position, to be provided with
The boss in gap between sealing valve plate and body cavity；The driven gear component is embedded with and driven gear component injection molding
Metal inner lining, the center of metal inner lining offers the through hole through rotating shaft, is welded as a whole between rotating shaft and metal inner lining.
The above-mentioned abrasionproof valve element for low pressure EGR valve, the metal inner lining includes flat shaped body, and the outer edge of main body is set
It is equipped with to offer on multiple trapezoidal corner angle, each corner angle and is easy to be molded the through hole being integrated with driven gear component.
As a result of above technical scheme, the invention technological progress is as follows.
Installed between the valve block and valve interior wall of the present invention using gap fiting mode, EGR valve can be prevented effectively from dynamic
Make to come in contact between process middle valve plate and valve interior wall, also avoid the generation of valve block and valve interior wall degree of impairment；It is logical
Cross the boss for setting and having dislocation on the inwall of valve body, and the embedded metal liner in driven gear component, make metal inner lining with
Rotating shaft is fixedly connected by welding manner, on the basis of it can realize power transmitting, additionally it is possible to make valve block when closed
With the reliable contacts of boss, it is ensured that leakage rate meets production requirement.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of the metal inner lining；
Fig. 3 is the structural representation under middle valve plate of the present invention opening certain angle state.
Wherein：1. valve body, 2. rotating shafts, 3. valve blocks, 4. driven gear components, 5. metal inner linings, 6. limited blocks, 7. boss.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in further detail.
A kind of abrasionproof valve element for low pressure EGR valve, its structure are as shown in figure 1, the rotating shaft 2 including being arranged in valve body 1；
The bottom of rotating shaft 2 is provided with valve block 3 by screw, and valve block coordinates with body cavity realizes being turned on and off for EGR valve；Rotating shaft
The driven gear component 4 of top and EGR valve is connected.
In the present invention, the diameter of valve block 3 is less than the diameter of body cavity, i.e., be provided between valve block edge and valve interior wall
Gap, as shown in Figure 3；Boss 7 is provided with valve interior wall when correspondence valve block is in the closed position, for sealing valve plate and valve
Gap between intracoelomic cavity, to ensure the favorable sealing property in EGR valve body cavity in the state of complete closure.
Driven gear component 4 is embedded with metal inner lining 5, metal inner lining 5 and driven gear component injection molding.Metal inner lining
5 structure is as shown in Fig. 2 including flat shaped body, the center of main body offers the through hole through rotating shaft, rotating shaft and metal inner lining
Between be welded as a whole；The outer edge of main body is provided with multiple trapezoidal corner angle, each corner angle and offers through hole, in order to
The injection of driven gear component is integrated, increase injection intensity.
The setting of metal inner lining, both ensure that being reliably connected for driven gear component and rotating shaft, it is often more important that, Neng Goufang
What the position that only valve block assembles rotating shaft and driven gear component due to vibrations with boss Contact was relatively moved shows
As, therefore also just fundamentally avoid the problem of leakage rate increases.
During present invention assembling, valve block is fixed by screws in rotating shaft bottom first, then puts it into body cavity, and is located
In full off state；Secondly, driven gear component is contacted with the limited block 6 on valve body top, and fixed driven gear component；So
Afterwards, the metal inner lining in rotating shaft and driven gear component is welded together.
Claims (2)
1. for the abrasionproof valve element of low pressure EGR valve, including it is arranged on valve body（1）Interior rotating shaft（2）, rotating shaft（2）Bottom pass through
Screw, which is provided with to coordinate with body cavity, realizes the valve block that EGR valve is turned on and off（3）, the top of rotating shaft and EGR valve it is passive
Gear assembly（4）Connection；It is characterized in that：The valve block（3）Diameter be less than body cavity diameter, correspondence valve block be in close
The boss in gap between sealing valve plate and body cavity is provided with valve interior wall during closed position（7）；The driven gear group
Part（4）It is embedded with the metal inner lining with driven gear component injection molding（5）, metal inner lining（5）Center offer through turn
The through hole of axle, is welded as a whole between rotating shaft and metal inner lining.
2. the abrasionproof valve element according to claim 1 for low pressure EGR valve, it is characterised in that：The metal inner lining（5）Bag
Flat shaped body is included, the outer edge of main body, which is provided with to offer on multiple trapezoidal corner angle, each corner angle, to be easy to and driven gear
The through hole that component injection is integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597571.1A CN107166047A (en) | 2017-07-21 | 2017-07-21 | Abrasionproof valve element for low pressure EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597571.1A CN107166047A (en) | 2017-07-21 | 2017-07-21 | Abrasionproof valve element for low pressure EGR valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107166047A true CN107166047A (en) | 2017-09-15 |
Family
ID=59817192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597571.1A Withdrawn CN107166047A (en) | 2017-07-21 | 2017-07-21 | Abrasionproof valve element for low pressure EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107166047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737225A (en) * | 2019-02-27 | 2019-05-10 | 杭州老板电器股份有限公司 | Check-valves and kitchen ventilator |
| CN113280180A (en) * | 2021-05-25 | 2021-08-20 | 梁秋荧 | Pneumatic actuator internal transmission mechanism with self-locking function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698717B1 (en) * | 2002-10-24 | 2004-03-02 | Honeywell International Inc. | Modified butterfly valve and assembly |
| JP2006125354A (en) * | 2004-11-01 | 2006-05-18 | Hino Motors Ltd | Exhaust emission control device |
| CN1894486A (en) * | 2003-12-12 | 2007-01-10 | 本田技研工业株式会社 | Camshaft, method of manufacturing cam for camshaft, and method of manufacturing shaft for camshaft |
| CN204717011U (en) * | 2015-05-06 | 2015-10-21 | 刘世猛 | A kind of centre-pivoted butterfly valve of adjustable gradually tight arc sealing surface |
| WO2016030626A1 (en) * | 2014-08-25 | 2016-03-03 | Valeo Systemes De Controle Moteur | Engine control valve in a motor vehicle |
| CN205937708U (en) * | 2016-06-07 | 2017-02-08 | 上海锐拍智能科技有限公司 | Integral type drive gear |
| CN206972935U (en) * | 2017-07-21 | 2018-02-06 | 无锡隆盛科技股份有限公司 | Abrasionproof valve element for low pressure EGR valve |
-
2017
- 2017-07-21 CN CN201710597571.1A patent/CN107166047A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698717B1 (en) * | 2002-10-24 | 2004-03-02 | Honeywell International Inc. | Modified butterfly valve and assembly |
| CN1894486A (en) * | 2003-12-12 | 2007-01-10 | 本田技研工业株式会社 | Camshaft, method of manufacturing cam for camshaft, and method of manufacturing shaft for camshaft |
| JP2006125354A (en) * | 2004-11-01 | 2006-05-18 | Hino Motors Ltd | Exhaust emission control device |
| WO2016030626A1 (en) * | 2014-08-25 | 2016-03-03 | Valeo Systemes De Controle Moteur | Engine control valve in a motor vehicle |
| CN204717011U (en) * | 2015-05-06 | 2015-10-21 | 刘世猛 | A kind of centre-pivoted butterfly valve of adjustable gradually tight arc sealing surface |
| CN205937708U (en) * | 2016-06-07 | 2017-02-08 | 上海锐拍智能科技有限公司 | Integral type drive gear |
| CN206972935U (en) * | 2017-07-21 | 2018-02-06 | 无锡隆盛科技股份有限公司 | Abrasionproof valve element for low pressure EGR valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737225A (en) * | 2019-02-27 | 2019-05-10 | 杭州老板电器股份有限公司 | Check-valves and kitchen ventilator |
| CN109737225B (en) * | 2019-02-27 | 2024-05-24 | 杭州老板电器股份有限公司 | Check valve and range hood |
| CN113280180A (en) * | 2021-05-25 | 2021-08-20 | 梁秋荧 | Pneumatic actuator internal transmission mechanism with self-locking function |
| CN113280180B (en) * | 2021-05-25 | 2022-12-13 | 郝工自控阀门有限公司 | Pneumatic actuator internal transmission mechanism with self-locking function |
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Legal Events
| 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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170915 |