CN108104956A - A kind of split type exhaust backpressure valve - Google Patents
A kind of split type exhaust backpressure valve Download PDFInfo
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- CN108104956A CN108104956A CN201711471023.0A CN201711471023A CN108104956A CN 108104956 A CN108104956 A CN 108104956A CN 201711471023 A CN201711471023 A CN 201711471023A CN 108104956 A CN108104956 A CN 108104956A
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- valve body
- body portion
- central shaft
- terminal pad
- valve
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Classifications
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- 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
- F02D9/107—Manufacturing or mounting details
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- 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
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
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- 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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- 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
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
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- 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
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of split type exhaust backpressure valves, and the driving mechanism that body portion acts and the return mechanism being arranged between body portion and driving mechanism are driven including body portion, by gear train；The body portion is divided into upper valve body portion and lower valve body portion, the bindiny mechanism for connecting upper valve body portion and lower valve body portion and being only transmitted partial heat is connected between upper valve body portion and lower valve body portion, one is set between the bindiny mechanism and upper valve body portion for effectively obstructing the heat insulating mattress of the supreme body portion of bindiny mechanism's heat transfer.The present invention is by being separately set body portion for upper valve body portion and lower valve body portion, and in a manner that upper valve body portion is connected by bindiny mechanism with lower valve body portion, so that installing and dismounting of the present invention is very convenient, and the heat insulating mattress set between bindiny mechanism and upper valve body portion is capable of the transmission of effective trap heat, greatly extends the service life of device.
Description
Technical field
The present invention relates to engine exhaust emission control device technical field, particularly one kind to give up in engine exhaust emission
The exhaust backpressure valve being separately set in gas recirculating system.
Background technology
The controllable spontaneous combustion of gasoline engine (Controlled Auto Ignition, CAI) is by compressed air, fuel（Bag
Include the exhaust gas of recycling）Mixture until a kind of new combustion system to catch fire, its essence is two kinds of diesel engines and gasoline engine
The synthesis of combustion system belongs to the improvement to combustion system, has very high theoretical research value, is research heat in recent years
Point and a kind of combustion system to reach its maturity.
At present, realize that the main method of CAI burnings has both at home and abroad：Direct inlet air heating, using high compression ratio, using more holding
The fuel of easy involuntary ignition, using internal residual exhaust gas heating etc., and internal exhaust gas recirculation（EGR）Strategy is considered as four punchings
One of method the most feasible of CAI burnings is realized on journey gasoline engine.Internal exhaust gas recirculation controls gasoline engine CAI combustion processes
Basic thought be to capture a part of hot residual gas in cylinder by changing valve timing, heat air inlet with it, complete compression
Involuntary ignition.
According to the difference of valve control strategies and exhaust gas supply mode, internal exhaust gas recirculation realizes what CAI burnt
There are mainly two types of methods：One kind be exhaust gas in Compression Strategies, another kind is that exhaust gas inhales strategy again.Exhaust gas recompression strategy is to utilize
Negative valve overlap（Exhaust valve early closes and inlet valve evening opens）, the residual gas of last cycling hot is stayed in cold to heat in cylinder
Fresh charge, gaseous mixture is made to reach involuntary ignition temperature near, realizes CAI burnings.Exhaust gas inhales strategy again
It is the exhaust gas that will be discharged again again in suction cylinder, there are mainly two types of implementation methods：One kind is that exhaust is opened in intake process
Door, will be in the exhaust gas that discharged again suction cylinder；Another kind is that inlet valve is opened in exhaust process, a part of exhaust gas enter into
Air flue, in intake process again in suction cylinder.
Exhaust backpressure valve is the pilot controller in automobile exhaust gas recirculating system, being capable of the row of adjusting by exhaust backpressure valve
Gas back pressure realizes the Compression Strategies of exhaust gas.
At present, common exhaust backpressure valve is using monolithic construction, in the exhaust backpressure valve course of work, due to exhaust gas
Temperature is excessively high, and gear train, electric part and the motor of driving mechanism are present with high temperature failure phenomenon.In addition, exhaust backpressure valve
Return mechanism can design in body portion, very close high-temperature tail gas heat source, excessively high temperature causes return spring to lose bullet
Property.To sum up two kinds of factors can all cause the failure of exhaust backpressure valve, greatly reduce the service life of exhaust backpressure valve so that general
Logical exhaust backpressure valve, which needs to remove driving mechanism and return mechanism from valve body, to be replaced, and is inconvenient, so undoubtedly
Waste of manpower, financial resources add the operating cost of enterprise.
The content of the invention
The technical problem to be solved in the invention is there is provided a kind of split type exhaust backpressure valve, to solve common row
Gas counterbalance valve causes return mechanism and driving mechanism close to heat source using monolithic construction, so cause exhaust backpressure valve easy because
The problem of high temperature failure, further extends the service life of exhaust backpressure valve, reduces the operating cost of enterprise.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of split type exhaust backpressure valve, the driving that body portion is driven to act including body portion, by gear train
Mechanism and the return mechanism being arranged between body portion and driving mechanism are provided in driving mechanism in the body portion
The central shaft that lower control valve is driven to open and close；The body portion is divided into upper valve body portion and lower valve body portion, accordingly center
Axis is also configured as separating up and down but the central shaft a of coaxial arrangement and central shaft b；Between the upper valve body portion and lower valve body portion
The bindiny mechanism for connecting upper valve body portion and lower valve body portion and being only transmitted partial heat is connected with, it is described
One is set between bindiny mechanism and upper valve body portion for effectively obstructing the heat-insulated of the supreme body portion of bindiny mechanism's heat transfer
Pad.
Further optimisation technique scheme, the upper valve body portion include valve body a, central shaft a are provided through on valve body a,
Valve body a bottoms are additionally provided with the axle sleeve a positioned to central shaft a, and the valve body a tops above axle sleeve a offer
For accommodating the accommodating chamber of return mechanism.
Further optimisation technique scheme, the lower valve body portion include valve body b and are opened on valve body b to arrange with engine
The exhaust passage that air pipe is connected；It is equipped on the valve body b and is coaxially disposed with central shaft a and hangs down with exhaust passage central axes
The central shaft b directly set；Shape is fixedly installed on the central shaft b with the corresponding valve of exhaust passage cross-sectional shape size
Piece.
Further optimisation technique scheme, the valve body b tops offer axle sleeve mounting hole, and installation is useful in axle sleeve mounting hole
In the axle sleeve b for ensureing central shaft b normal rotations；One is also set up between the axle sleeve b and axle sleeve mounting hole bottom face to be sleeved on
For preventing the diaphragm seal of high-temperature tail gas leakage at the top of valve body b on mandrel b, the central shaft b peripheries of diaphragm seal are corresponded to
On offer clamp diaphragm seal card slot；The valve body b bottoms are provided with to prevent what high-temperature tail gas from revealing from valve body b bottoms
Seal plug.
Further optimisation technique scheme, what the bindiny mechanism included setting gradually from top to bottom fixes company with central shaft a
It the upper terminal pad that connects and is fixedly connected with central shaft b and lower terminal pad, upper terminal pad and lower terminal pad is mutually clamped and upper connection
Certain gap is installed between disk lower face and lower terminal pad upper surface.
Further optimisation technique scheme offers U-shaped straight slot in the upper terminal pad, be provided in lower terminal pad vertically to
On with U-shaped straight slot clearance fit protrusion；It is equipped with to generate idle stroke when eliminating valve block revolution in the upper terminal pad
Individual pen torsional spring, one washer of installation settings in the upper terminal pad below individual pen torsional spring；The upper terminal pad is corresponding on washer
Offer that two opposite side are parallel, another two opposite side is arc-shaped is set, for causing central shaft a insertions connection and the grafting of effective position
Mouth a；Also offer that two opposite side are parallel, another two opposite side is arc-shaped is set, for central shaft b to be caused to be inserted into the lower terminal pad
Grafting and the interface b of effective position.
Further optimisation technique scheme, the bindiny mechanism around surrounding tubular annular connecting bracket by enclosing；
The top of the connecting bracket is fixed on the bottom face of valve body a, and the top of valve body b is fixed in the bottom of connecting bracket.
Further optimisation technique scheme, the return mechanism include being arranged on the gear for accommodating cavity inner sleeve on central shaft a
The needle bearing on baffle ring upper surface is enclosed and is arranged on, needle bearing outer sheath is equipped with is fixed on central shaft a by connector
On return spring.
As a result of above technical scheme, the invention technological progress is as follows.
The present invention is compact-sized, design is unique, and process is simple, easy for assemble or unload, easily implements, by by body portion
It is separately set as upper valve body portion and lower valve body portion, it is accordingly that central shaft is also separately positioned into two parts up and down, and lead to
Cross the mode that upper valve body portion is connected by bindiny mechanism with lower valve body portion so that installing and dismounting of the present invention is very convenient, and
The heat insulating mattress set between bindiny mechanism and upper valve body portion is capable of the transmission of effective trap heat, efficiently avoids return bullet
The problem of spring follows the string due to temperature is excessively high and driving mechanism fails due to temperature is excessively high, greatly extends making for device
Use the service life.
The U-shaped straight slot opened up in the present invention in terminal pad is matched somebody with somebody with the protrusion gap straight up set in lower terminal pad
It closes so that upper terminal pad and lower terminal pad can be mutually clamped, so that central shaft a can drive central shaft b to turn when rotating
It is dynamic, so as to efficiently control the rotation of valve block；The individual pen torsional spring installed in upper terminal pad can be effectively prevented from because of upper connection
Gap between the lower terminal pad of disk causes valve block to generate happening for idle stroke when turning round；Upper terminal pad lower face and lower company
It connects and is installed with certain gap between disk upper surface so that the contact area very little of terminal pad and lower terminal pad in the present apparatus, from
And cause only less heat transfer to central shaft a, so that return spring and driving mechanism will not be subject to high temperature
It influences.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is upper terminal pad of the present invention and individual pen torsional spring and the structure diagram of washer connection mode；
Fig. 3 is upper terminal pad of the present invention and lower terminal pad connection mode structure diagram.
Wherein：1st, driving mechanism；2nd, return mechanism, 21, return spring, 22, needle bearing, 23, baffle ring；3rd, valve body
Point, 31, upper valve body portion, 311, valve body a, 312, central shaft a, 313, axle sleeve a, 32, lower valve body portion, 321, valve body b, 322,
Central shaft b, 323, axle sleeve b, 324, exhaust passage, 325, valve block, 326, seal plug, 327, diaphragm seal；4th, heat insulating mattress；5th, even
Connection mechanism, 51, connecting bracket, 52, upper terminal pad, 53, individual pen torsional spring, 54, washer, 55, lower terminal pad, 56, U-shaped straight slot, 57,
Protrusion.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in further detail.
A kind of split type exhaust backpressure valve, with reference to shown in Fig. 1 to 3, including body portion 3, driving mechanism 1, return machine
Structure 2, bindiny mechanism 5 and heat insulating mattress 4.
Body portion 3 is divided into upper valve body portion 31 and lower valve body portion 32.Central shaft, center are provided in body portion
Axis driving mechanism drive under control valve open and close, central shaft also accordingly up and down it is separately positioned centered on axis a312 and central shaft
B322 two parts, central shaft a312 are arranged in upper valve body portion 31, and central shaft b322 is separately positioned in lower valve body portion 32,
Central shaft a312 and central shaft b322 coaxial arrangements.
Upper valve body portion 31 includes valve body a311, central shaft a312, axle sleeve a313 and accommodating chamber.Central shaft a312 is passed through vertically
It wears and is arranged on valve body a311；Axle sleeve a313 is arranged on valve body a311 bottoms, for being positioned to central shaft a312 so that in
Mandrel a312 is kept in the vertical direction in rotation process；Accommodating chamber is opened in the valve body a311 tops above axle sleeve a313
End, for accommodating return mechanism 2.
Lower valve body portion 32 includes valve body b321, exhaust passage 324, central shaft b322, valve block 325, axle sleeve b323, sealing
Piece 327 and seal plug 326.Exhaust passage 324 is opened on valve body b321, is connected with Engine exhaust pipeline, exhaust gas by
Exhaust passage 324 flows through exhaust backpressure valve；Central shaft b322 is worn from valve body b321 tops to bottom, coaxial with central shaft a312
It sets, and is vertically arranged with 324 central axes of exhaust passage；Valve block 325 is fixed on central shaft b322, and shape is logical with exhaust
324 cross-sectional shape size of road is corresponding, by changing the rotation angle of valve block 325, can change the exhaust gas in exhaust passage 324
Pressure, and then change exhaust back pressure；Axle sleeve mounting hole is offered at the top of valve body b321, axle sleeve b323 is mounted on valve body b321 tops
Axle sleeve mounting hole, for ensureing central shaft b322 normal rotations, axle sleeve b323 can be used using not only high temperature resistant but also wear-resistant material
In order to save cost, RTQSi5 heat-resisting cast iron can also be used in heat-resisting steels；Diaphragm seal 327 is arranged on axle sleeve b323 pacifies with axle sleeve
Between filling bottom hole end face, it is sleeved on central shaft b322, it is corresponding for preventing high-temperature tail gas from being revealed at the top of valve body b321
Card slot is offered on the central shaft b peripheries of diaphragm seal, card slot is used to clamp diaphragm seal；Seal plug 326 is arranged on valve body
B321 bottoms, for preventing high-temperature tail gas from being revealed from valve body b321 bottoms.
Driving mechanism 1 includes gear train, electric part and motor, and the center in body portion 3 is driven by gear train
Axis a312 is acted.In order to enable the present invention is more convenient during installing and dismounting, driving mechanism 1 is arranged on valve body a311
On.
Return mechanism 2 is arranged between body portion 3 and driving mechanism 1, the accommodating chamber being arranged on upper valve body portion 31
It is interior, including baffle ring 23, needle bearing 22 and return spring 21.Central shaft a312 is located at being opened up on the side wall of accommodating chamber flush
There is baffle ring groove, baffle ring 23 is sleeved in the baffle ring groove on central shaft a312, and is arranged on accommodating chamber bottom；Needle bearing 22
It is arranged on the upper surface of baffle ring 23；Return spring 21 is sleeved on 22 outside of needle bearing, is fixed on central shaft a by connector
On.
The connection of bindiny mechanism 5 is arranged between upper valve body portion 31 and lower valve body portion 32, for connecting upper valve body portion
31 and lower valve body portion 32 and only partial heat is transmitted, including connecting bracket 51, upper terminal pad 52 and lower terminal pad 55.
Connecting bracket 51 is tubular annular, is looped around around bindiny mechanism, is arranged at 4 bottom of heat insulating mattress, one end is bolted company
It is connected on valve body a311, the other end is bolted to connection on valve body b321；Upper terminal pad 52 and lower terminal pad 55 are from upper
It is successively set under in connecting bracket 51, is fixedly connected with central shaft a312 is fixedly connected with central shaft b322 respectively, upper company
It connects and is fixed between disk 52 and lower terminal pad 55 by the way of being mutually clamped, upper 52 lower face of terminal pad and lower terminal pad 55
It is installed with certain gap between upper surface, so sets and allow for the contact area of terminal pad 52 and lower terminal pad 55 just very
It is small so that the heat in exhaust passage 324 only has less heat to be communicated up.
U-shaped straight slot 56 is offered in upper terminal pad 52, protrusion 57 straight up is provided in lower terminal pad 55, due to
In actual installation, central shaft a312 can not possibly be coaxially disposed completely with central shaft b322, so protrusion 57 is used with U-shaped straight slot 56
Clearance fit.Gap between the upper lower terminal pad 55 of terminal pad 52 can cause the situation that idle stroke is generated during the revolution of valve block 325
Occur, in order to avoid this case, individual pen torsional spring 53 is installed in upper terminal pad 52, while below individual pen torsional spring 53
Upper terminal pad 52 on one washer 54 of installation settings.
In order to enable central shaft a312 can be securely effectively plugged into thereon by upper terminal pad 52 respectively, and can
Effective position offers interface a upper terminal pad 52 is corresponding on washer 54, and two opposite side of interface a are parallel, two pairs another
The arc-shaped setting in side.In order to enable central shaft b322 can be securely effectively plugged into thereon by lower terminal pad 55 respectively,
And can effective position, offer interface b in lower terminal pad 55, two opposite side of interface b are parallel, another two opposite side is in arc
Shape is set.
Upper valve body portion 31 is transferred in order to effectively obstruct the partial heat transferred in bindiny mechanism 5, heat insulating mattress 4 is set
It between bindiny mechanism 5 and upper valve body portion 31, is fastened by bolts between heat insulating mattress 4 and valve body a311, heat insulating mattress 4 can be lip
Shape sealing ring can effectively act as sealing function so that and heat can not be transferred at return mechanism 2 and driving mechanism 1, into
And greatly avoid the situation that return spring 21 is caused to fail due to heat is excessively high.
The specific installation steps of the present invention are as follows.
1st, the assembling of upper valve body portion 31 and return mechanism 2.First axle sleeve a313, heat insulating mattress 4 are installed in valve body a311,
The central shaft a312 with baffle ring 23 from valve body a311 tops is inserted into again and is installed, then by needle bearing 22, return spring 21
It is sequentially loaded into valve body a311.
2nd, the assembling of lower valve body portion.Central shaft b322 with diaphragm seal 327 is passed through into exhaust from valve body b321 tops
Passage 324 is inserted into valve body b321 bottoms, then by axle sleeve b323 in axle sleeve mounting hole, it should be always when installation
Keep central shaft b322 and 324 central axes of exhaust passage perpendicular, to ensure installation accuracy.
3rd, the assembling of bindiny mechanism 5.The upper terminal pad 52 for being equipped with upper individual pen torsional spring 53 and washer 54 successively grafting are filled
Enter onto central shaft a312, then lower 55 grafting of terminal pad is encased on central shaft b322, it then will be prominent in lower terminal pad 55
57 positions are played to snap fit onto in the U-shaped straight slot 56 in terminal pad 52, in assembling process on 52 lower face of terminal pad and lower connection
Certain gap, and protrusion 57 and U-shaped 56 clearance fit of straight slot are installed between 55 upper surface of disk；Then by connecting bracket 51
Both ends by bolt are locked and are installed on valve body a311 and valve body b321 respectively, and upper valve body portion 31 and lower valve body portion 32 are connected
It is connected to the assembling for together, completing the present apparatus.
The present invention is installed to waste pipe road in practical applications, by exhaust passage 324, from engine exhaust
The gas of pipeline discharge flows through the present apparatus by exhaust passage 324, the motor-driven gear system action in driving mechanism 1, into
And central shaft a312 is driven to rotate, the rotation of central shaft a312 can drive terminal pad 52 to rotate simultaneously, due to upper terminal pad 52
In U-shaped straight slot 56 be equipped with the protrusion 57 in lower terminal pad 55 using gap so that upper terminal pad 52 can drive lower connection
Disk 55 and the central shaft b322 of fixed lower terminal pad 55 are rotated, so as to control the rotation of valve block 325.The present invention is by changing
The pressure of exhaust gas can be controlled by becoming the rotation angle of valve block 325, and then can control the exhaust back pressure of engine, and due to valve body
Part 3 is separately set so that return mechanism 2 and driving mechanism 1 will not be influenced be subject to high-temperature tail gas, greatly extend device
Service life.
Claims (8)
1. a kind of split type exhaust backpressure valve, including body portion（3）, body portion driven by gear train（3）Action
Driving mechanism（1）And it is arranged on body portion（3）With driving mechanism（1）Between return mechanism（2）, in the body portion
It is provided with the central shaft that control valve opens and closes under driving mechanism drive；It is characterized in that：The body portion（3）It is divided into upper valve
Body portion（31）With lower valve body portion（32）, accordingly central shaft be also configured as up and down separate but coaxial arrangement central shaft a
（312）With central shaft b（322）；The upper valve body portion（31）With lower valve body portion（32）Between be connected with to connect
Upper valve body portion（31）With lower valve body portion（32）And the bindiny mechanism for being only transmitted partial heat（5）, the connection machine
Structure（5）With upper valve body portion（31）Between set one for effectively obstruct bindiny mechanism（5）The supreme body portion of heat transfer
（31）Heat insulating mattress（4）.
2. a kind of split type exhaust backpressure valve according to claim 1, it is characterised in that：The upper valve body portion（31）
Including valve body a（311）, valve body a（311）On be provided through central shaft a（312）, valve body a（311）Bottom, which is additionally provided with, to be used for
To central shaft a（312）The axle sleeve a positioned（313）, positioned at axle sleeve a（313）The valve body a of top（311）Top opens up useful
In receiving return mechanism（2）Accommodating chamber.
3. a kind of split type exhaust backpressure valve according to claim 2, it is characterised in that：The lower valve body portion（32）
Including valve body b（321）And it is opened in valve body b（321）On the exhaust passage that is connected with Engine exhaust pipeline（324）；Institute
State valve body b（321）On be equipped with and central shaft a（312）Coaxial arrangement and and exhaust passage（324）During central axes are vertically disposed
Mandrel b（322）；The central shaft b（322）On be fixedly installed the same exhaust passage of shape（324）Cross-sectional shape size is corresponding
Valve block（325）.
4. a kind of split type exhaust backpressure valve according to claim 3, it is characterised in that：The valve body b（321）Top
Axle sleeve mounting hole is offered, is equipped with to ensure central shaft b in axle sleeve mounting hole（322）The axle sleeve b of normal rotation（323）；
The axle sleeve b（323）One, which is also set up, between axle sleeve mounting hole bottom face is sleeved on central shaft b（322）On for preventing
High-temperature tail gas is from valve body b（321）The diaphragm seal of top leakage（327）, correspond to and offer card on the central shaft b peripheries of diaphragm seal
Fill the card slot of diaphragm seal；The valve body b（321）Bottom is provided with to prevent high-temperature tail gas from valve body b（321）Bottom leakage
Seal plug（326）.
5. a kind of split type exhaust backpressure valve according to claim 1, it is characterised in that：The bindiny mechanism（5）Bag
Include set gradually from top to bottom with central shaft a（312）The upper terminal pad being fixedly connected（52）With with central shaft b（322）It is fixed
Connection and lower terminal pad（55）, upper terminal pad（52）With lower terminal pad（55）Mutually clamping and upper terminal pad（52）Lower face is under
Terminal pad（55）Certain gap is installed between upper surface.
6. a kind of split type exhaust backpressure valve according to claim 5, it is characterised in that：The upper terminal pad（52）On
Offer U-shaped straight slot（56）, lower terminal pad（55）On be provided with straight up with U-shaped straight slot（56）The protrusion of clearance fit
（57）；The upper terminal pad（52）On be equipped with to eliminate valve block（325）The individual pen torsional spring of idle stroke is generated during revolution（53）,
Positioned at individual pen torsional spring（53）The upper terminal pad of lower section（52）Upper one washer of installation settings（54）；The upper terminal pad（52）With washer
（54）Upper correspondence offers that two opposite side are parallel, another two opposite side is arc-shaped is set, for causing central shaft a（312）Insertion connection
And the interface a of effective position；The lower terminal pad（55）On also offer that two opposite side are parallel, another two opposite side is arc-shaped sets
It puts, for causing central shaft b（322）It is inserted into the interface b of grafting and effective position.
7. a kind of split type exhaust backpressure valve according to claim 5 or 6, it is characterised in that：The bindiny mechanism（5）
By around surrounding tubular annular connecting bracket（51）It encloses；The connecting bracket（51）Top be fixed on valve body a
（311）Bottom face on, connecting bracket（51）Bottom be fixed on valve body b（321）Top.
8. a kind of split type exhaust backpressure valve according to claim 1, it is characterised in that：The return mechanism（2）Bag
It includes to be arranged on and accommodates cavity inner sleeve mounted in central shaft a（312）On baffle ring（23）And it is arranged on baffle ring（23）Rolling on upper surface
Needle bearing（22）, needle bearing（22）Outer sheath is equipped with is fixed on central shaft a by connector（312）On return spring
（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471023.0A CN108104956A (en) | 2017-12-29 | 2017-12-29 | A kind of split type exhaust backpressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711471023.0A CN108104956A (en) | 2017-12-29 | 2017-12-29 | A kind of split type exhaust backpressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108104956A true CN108104956A (en) | 2018-06-01 |
Family
ID=62214686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711471023.0A Pending CN108104956A (en) | 2017-12-29 | 2017-12-29 | A kind of split type exhaust backpressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441646A (en) * | 2018-11-22 | 2019-03-08 | 南京奥联智驱电子有限公司 | Exhaust backpressure 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 |
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| US20040119041A1 (en) * | 2002-11-08 | 2004-06-24 | Aisan Kogyo Kabushiki Kaisha | Throttle bodies with throttle valves actuated by motors |
| US20080017816A1 (en) * | 2006-07-24 | 2008-01-24 | Arvin Technologies, Inc. | Thermal isolator for actuator and valve assembly |
| DE102011107088A1 (en) * | 2011-07-11 | 2013-01-17 | Friedrich Boysen Gmbh & Co. Kg | Flap device, particularly exhaust flap device for selectively closing exhaust gas path in exhaust system of motor vehicle, has flap rotatably mounted around flap axis, actuator, particularly electrical actuator for rotation of flap |
| 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 |
| CN207647630U (en) * | 2017-12-29 | 2018-07-24 | 无锡隆盛科技股份有限公司 | A kind of split type exhaust backpressure valve |
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| US20040119041A1 (en) * | 2002-11-08 | 2004-06-24 | Aisan Kogyo Kabushiki Kaisha | Throttle bodies with throttle valves actuated by motors |
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| DE102011107088A1 (en) * | 2011-07-11 | 2013-01-17 | Friedrich Boysen Gmbh & Co. Kg | Flap device, particularly exhaust flap device for selectively closing exhaust gas path in exhaust system of motor vehicle, has flap rotatably mounted around flap axis, actuator, particularly electrical actuator for rotation of flap |
| 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 |
| CN207647630U (en) * | 2017-12-29 | 2018-07-24 | 无锡隆盛科技股份有限公司 | A kind of split type exhaust backpressure valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109441646A (en) * | 2018-11-22 | 2019-03-08 | 南京奥联智驱电子有限公司 | Exhaust backpressure 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 |
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