CN108087127A - A kind of torque motor air throttle - Google Patents
A kind of torque motor air throttle Download PDFInfo
- Publication number
- CN108087127A CN108087127A CN201711456697.3A CN201711456697A CN108087127A CN 108087127 A CN108087127 A CN 108087127A CN 201711456697 A CN201711456697 A CN 201711456697A CN 108087127 A CN108087127 A CN 108087127A
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- CN
- China
- Prior art keywords
- shaft
- torque motor
- valve body
- block
- valve
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a kind of torque motor air throttles, including valve body, shaft is provided in valve body, the bottom of shaft is provided with the valve block being fitted in valve channel, the top end of the valve body is provided with the motor of drive shaft and valve block action, the motor is torque motor, and accommodating cavity is provided in the valve body below torque motor；The output shaft of the torque motor and the top of shaft are connected by being located at shaft coupling in accommodating cavity；The needle bearing that center is fitted in centrally through interference of the shaft coupling is connected with shaft, and needle bearing is also arranged with the torsional spring for resetting shaft and valve block in outer ring, and the top of torsional spring is fixedly connected with shaft coupling, and the bottom of torsional spring is fixedly connected with the valve body.The configuration of the present invention is simple, be active in one's movements, service life it is long, have high torque, can meet various duty requirements without gear train amplifying moment.
Description
Technical field
The present invention relates to diesel engine exhaust gas recirculation system technical field, it is particularly a kind of for adjust engine into
The electronic throttle of atmospheric pressure.
Background technology
For turbocharged and intercooled diesel engine, under some operating modes, it is cold in existing after admission pressure be more than turbine
Preceding pressure at expulsion, and cause to be vented the problem of difficultly flowing into air inlet pipe, it can further cause gas recirculation system（EGR systems
System）It can not act on；At this point, it then needs to install electronic throttle progress reducing pressure by regulating flow additional in the air inlet pipeline of diesel engine.
As country is higher and higher to motor vehicle exhaust emission requirement, automobile industry is also increasingly tighter to exhaust gas aftertreatment system
Lattice, to engine exhaust-gas recirculating system（Egr system）It is required that also higher and higher, traditional gas recirculation system（EGR systems
System）It can not meet the requirements.In five discharge phase of state, there are two types of technology paths for American-European countries at present：The first for exhaust gas again
The circulatory system（Egr system）With particle trap（DPF）The mode being combined, under such mode, when engine performs particle mistake
Filter（DPF）During reproducer, by controlling electronic throttle, to control the size of air inflow（Its essence is control air-fuel ratios）
And coordinate the fuel oil of extra injection（Injection and far post injection afterwards）So as to achieve the purpose that improve the regeneration temperature of DPF；It is another
It is SCR routes, i.e. Selective（Selectivity）、Catalytic（Catalysis）With Reduction（Reduction）, such mode is for city
For city's operating mode, because vehicle is often under low speed, running on the lower load, delivery temperature is low, and discharged nitrous oxides is caused seriously to surpass
Mark, the size of air inflow is controlled by adjusting electronic throttle, and coordinates extra injection fuel oil, can effectively improve exhaust temperature
Degree improves SCR system work efficiency；Above two mode all be unable to do without electronic throttle.In addition, after electronic throttle is set,
Electronic throttle is completely closed when flame-out, the component failures such as atomizer can be also effectively prevented and cause what can not be stopped working to ask
Topic prevented also from flame-out moment since cylinder sucks air and imperfect combustion fuel oil, causes engine to shake.It can be seen that for
Electronic throttle is be unable to do without in the improved technology of gas recirculation system, therefore a kind of action sensitivity is high, precision is higher, uses
The electronic throttle of long lifespan is become as one of indispensable component of diesel engine exhaust gas recirculation system technical field.
The content of the invention
The technical problem to be solved in the invention be to provide it is a kind of it is simple in structure, be active in one's movements, service life length electronics
Air throttle has high torque, can meet various duty requirements without gear train amplifying moment.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of torque motor air throttle including valve body, is provided with shaft in valve body, the bottom of shaft, which is provided with, is fitted in valve
Valve block in body passage, the top end of the valve body are provided with the motor of drive shaft and valve block action, and the motor is torque motor,
Accommodating cavity is provided in valve body below torque motor；The output shaft of the torque motor and the top of shaft are accommodating by being located at
Intracavitary shaft coupling connects；The needle bearing that center is fitted in centrally through interference of the shaft coupling is connected with shaft, needle roller axis
Hold the torsional spring for being also arranged in outer ring and resetting shaft and valve block, the top of torsional spring is fixedly connected with shaft coupling, the bottom of torsional spring and
Valve body is fixedly connected.
A kind of above-mentioned torque motor air throttle, the shaft coupling include adjustment block and the upper link block being equipped with adjustment block
And lower connecting block, the upper link block are fixedly connected with the bottom of torque motor output shaft, the top of lower connecting block and shaft is consolidated
Fixed connection；The top of the torsional spring is connected with lower connecting block.
A kind of above-mentioned torque motor air throttle, the needle bearing are additionally provided with the Upper shaft sleeve of positioning rotating shaft with shaft, turn
Axis is equipped with valve body bottom by Lower shaft sleeve.
A kind of above-mentioned torque motor air throttle is provided with oil sealing in the shaft below the accommodating cavity.
As a result of above technical scheme, the invention technological progress is as follows.
The configuration of the present invention is simple, be active in one's movements, service life it is long, have high torque, be without gear train amplifying moment
Various duty requirements can be met；Driving device provides power, the torque of torque motor output using the larger torque motor of torque
More than 1.4N.m, there is no need in addition set gear train that need to only connect moment amplification by the shaft of shaft coupling and air throttle,
It can be by torsion force transmissions to the valve block of shaft bottom；In addition the special construction of shaft coupling can also eliminate torque motor central shaft
The decentraction problem occurred between shaft because of scale error and rigging error, ensure that the good operation of air throttle.
Description of the drawings
Fig. 1 is the structure sectional view of the present invention；
Fig. 2 is the structure diagram of shaft coupling of the present invention.
Wherein：1. valve block, 2. oil sealings, 3. Upper shaft sleeves, 4. needle bearings, 5. lower connecting blocks, 6. adjustment blocks, 7. times connections
Block, 8. torque motors, 9. valve bodies, 10. torsional springs, 11. shafts, 12. Lower shaft sleeves, 13. baffle rings, 14. Bowl Plugs.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
A kind of torque motor air throttle, structure are provided with shaft 11 as shown in Figure 1, including valve body in valve body, shaft
Top is arranged on by Upper shaft sleeve 3 in valve body, and the bottom of shaft is set by Lower shaft sleeve in valve body, and the middle part setting of shaft is active
The valve channel of gas circulation, the valve block 1 that screw is fitted in shaft bottom is provided in valve channel, and top end of the valve body is set
There is the motor of drive shaft and valve block action；Motor is torque motor 8 in the present invention.
Accommodating cavity is provided in valve body below torque motor, the output shaft of torque motor and the top of shaft are by being located at
Shaft coupling connects in accommodating cavity；The needle bearing 4 that center is fitted in centrally through interference of shaft coupling is connected with shaft, needle roller axis
The setting held can effectively reduce the frictional force of shaft rotation, have good shock resistance effect；Needle bearing is also arranged in outer ring
There is torsional spring 10, for resetting shaft and valve block, the torque value of torsional spring is necessary for 245mN.m-290mN.m.
The structure of shaft coupling is as shown in Fig. 2, the upper link block 7 being equipped with including adjustment block 6 and with adjustment block and lower connection
Block 5, wherein upper link block is fixedly connected with the bottom of torque motor output shaft, lower connecting block is fixedly connected with the top of shaft.
The top of above-mentioned torsional spring is connected with lower connecting block, and the bottom of torsional spring is fixedly connected with the valve body.In the present invention, lower connecting block 5 with
Upper link block 7 is stainless steel powder metallurgical, and adjustment block 6 is copper-base powder metallurgy, and lubricity is good, wear-resisting；Shaft coupling is set
Putting can not only eliminate because decentraction phenomenon caused by tolerance factor and assembling factor, and this Split type structure can be with
Facilitate the replacement of middle part adjustment block, extend the service life of air throttle.
To ensure the good seal performance of air throttle, the present invention is provided with oil sealing 2 in the shaft below accommodating cavity, selects
With retainer plate, retainer, double-lip oil sealing, material PTFE, have good corrosion resistance and ageing resistance；Shaft
Bottom blocked using stainless steel Bowl Plug 14.
The present invention assembling process be：After torque motor 8 adjusts the angle, upper link block 7 is welded on the defeated of torque motor 8
On shaft, after baffle ring 13 is packed into shaft 11, shaft 11 is inserted into from 9 lower end of valve body, is then sequentially loaded into Upper shaft sleeve 3, oil sealing 2 and rolling
Needle bearing 4, then lower end be packed into Lower shaft sleeve 12, be reloaded into valve block 1, locked valve block and shaft with screw, then by lower connecting block 5
It is welded with shaft 11, then places into adjustment block 6, finally assembled torque motor 8 on valve body 9.
Claims (4)
1. a kind of torque motor air throttle, including valve body（9）, shaft is provided in valve body（11）, the bottom of shaft, which is provided with, matches somebody with somebody
Valve block in valve channel（1）, the top end of the valve body is provided with the motor of drive shaft and valve block action, and feature exists
In：The motor is torque motor（8）, accommodating cavity is provided in the valve body below torque motor；The output of the torque motor
The top of axis and shaft is connected by being located at shaft coupling in accommodating cavity；The shaft coupling is fitted in center centrally through interference
Needle bearing（4）It is connected with shaft, needle bearing is also arranged with the torsional spring for resetting shaft and valve block in outer ring（10）, the top of torsional spring
End is fixedly connected with shaft coupling, and the bottom of torsional spring is fixedly connected with the valve body.
2. a kind of torque motor air throttle according to claim 1, it is characterised in that：The shaft coupling includes adjustment block
（6）And the upper link block being equipped with adjustment block（7）And lower connecting block（5）, the upper link block and torque motor output shaft
Bottom is fixedly connected, and lower connecting block is fixedly connected with the top of shaft；The top of the torsional spring is connected with lower connecting block.
3. a kind of torque motor air throttle according to claim 1, it is characterised in that：The needle bearing is also set with shaft
It is equipped with the Upper shaft sleeve of positioning rotating shaft（3）, shaft and valve body bottom pass through Lower shaft sleeve（12）It is equipped with.
4. a kind of torque motor air throttle according to claim 1, it is characterised in that：In shaft below the accommodating cavity
It is provided with oil sealing（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711456697.3A CN108087127A (en) | 2017-12-28 | 2017-12-28 | A kind of torque motor air throttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711456697.3A CN108087127A (en) | 2017-12-28 | 2017-12-28 | A kind of torque motor air throttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108087127A true CN108087127A (en) | 2018-05-29 |
Family
ID=62180239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711456697.3A Pending CN108087127A (en) | 2017-12-28 | 2017-12-28 | A kind of torque motor air throttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087127A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441673A (en) * | 2019-01-03 | 2019-03-08 | 无锡隆盛科技股份有限公司 | A kind of torque motor tab (s) formula EGR valve |
| CN109469736A (en) * | 2019-01-03 | 2019-03-15 | 无锡隆盛科技股份有限公司 | A kind of torque motor EGR dish valve |
| CN110848049A (en) * | 2019-12-26 | 2020-02-28 | 无锡隆盛科技股份有限公司 | Disc type EGR valve with clamp spring for torque motor |
| CN110905667A (en) * | 2019-12-30 | 2020-03-24 | 无锡隆盛科技股份有限公司 | Brushless motor throttle valve with pneumatic pressurization function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1096124A3 (en) * | 1999-11-01 | 2003-01-29 | Denso Corporation | Valve system for intake air controller for internal combustion engine and manufacturing the same |
| CN1525080A (en) * | 2003-02-28 | 2004-09-01 | ��ʽ�����װ | Rolling bearing of throttle valve device |
| EP0992662B1 (en) * | 1998-10-06 | 2005-12-28 | Hitachi, Ltd. | Throttle apparatus for an internal combustion engine |
| CN106050437A (en) * | 2016-08-01 | 2016-10-26 | 无锡隆盛科技股份有限公司 | Diesel electronic throttle valve |
| CN106968804A (en) * | 2015-11-17 | 2017-07-21 | 埃贝斯佩歇废气技术合资公司 | Electric exhausting valve gear |
| CN207634186U (en) * | 2017-12-28 | 2018-07-20 | 无锡隆盛科技股份有限公司 | A kind of torque motor air throttle |
-
2017
- 2017-12-28 CN CN201711456697.3A patent/CN108087127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0992662B1 (en) * | 1998-10-06 | 2005-12-28 | Hitachi, Ltd. | Throttle apparatus for an internal combustion engine |
| EP1096124A3 (en) * | 1999-11-01 | 2003-01-29 | Denso Corporation | Valve system for intake air controller for internal combustion engine and manufacturing the same |
| CN1525080A (en) * | 2003-02-28 | 2004-09-01 | ��ʽ�����װ | Rolling bearing of throttle valve device |
| CN106968804A (en) * | 2015-11-17 | 2017-07-21 | 埃贝斯佩歇废气技术合资公司 | Electric exhausting valve gear |
| CN106050437A (en) * | 2016-08-01 | 2016-10-26 | 无锡隆盛科技股份有限公司 | Diesel electronic throttle valve |
| CN207634186U (en) * | 2017-12-28 | 2018-07-20 | 无锡隆盛科技股份有限公司 | A kind of torque motor air throttle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441673A (en) * | 2019-01-03 | 2019-03-08 | 无锡隆盛科技股份有限公司 | A kind of torque motor tab (s) formula EGR valve |
| CN109469736A (en) * | 2019-01-03 | 2019-03-15 | 无锡隆盛科技股份有限公司 | A kind of torque motor EGR dish valve |
| CN109441673B (en) * | 2019-01-03 | 2024-04-02 | 无锡隆盛科技股份有限公司 | Butterfly type EGR valve of torque motor |
| CN110848049A (en) * | 2019-12-26 | 2020-02-28 | 无锡隆盛科技股份有限公司 | Disc type EGR valve with clamp spring for torque motor |
| CN110905667A (en) * | 2019-12-30 | 2020-03-24 | 无锡隆盛科技股份有限公司 | Brushless motor throttle valve with pneumatic pressurization function |
| CN110905667B (en) * | 2019-12-30 | 2024-06-04 | 无锡隆盛科技股份有限公司 | Brushless motor throttle valve with pneumatic supercharging 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |
|
| WD01 | Invention patent application deemed withdrawn after publication |