CN207554200U - Throttle valve and engine - Google Patents
Throttle valve and engine Download PDFInfo
- Publication number
- CN207554200U CN207554200U CN201721433925.0U CN201721433925U CN207554200U CN 207554200 U CN207554200 U CN 207554200U CN 201721433925 U CN201721433925 U CN 201721433925U CN 207554200 U CN207554200 U CN 207554200U
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- Prior art keywords
- throttling
- valve
- throttle
- valve plate
- chest
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Abstract
The utility model provides a kind of throttle valve, and including throttling valve chest and the valve plate being set up in throttling valve chest, throttling valve chest includes valve body import, valve outlet and the choke zone being set between valve body import and valve outlet, and valve plate frame is set on choke zone；The throttling initial point and the throttling terminal when valve plate is opened completely that the inner wall setting of throttling valve chest is closed cooperation with valve plate, throttle valve inner walls also set up the throttling curved surface for the terminal that extremely throttled by throttling initial point arc transition.By the inner wall setting for the valve chest that throttles by throttling initial point arc transition to the throttling curved surface for the terminal that throttles, with the rotation of valve plate, so that the end of valve plate and the spacing even transition of throttling curved surface, aperture control is more accurate, throttle valve throttling is unstable caused by avoiding the mutation of valve plate orifice size, the control accuracy that throttles is more accurate, improves the precision of throttle valve control.The utility model additionally provides a kind of engine for being provided with above-mentioned throttle-valve structure.
Description
Technical field
The utility model is related to throttle valve technology field, more specifically to a kind of throttle valve and engine.
Background technology
A variety of valve bodies such as intake-air throttle valve, combustion gas Trim valves and EGR valve are usually set in engine.Intake-air throttle valve is used in
On engine air inlet tube, for air or fuel-air mixture to be controlled to enter engine.(Trim typically represents valve to combustion gas Trim valves
Door internals) in engine fuel supply system, for fuel to be controlled to enter air inlet pipe or engine.EGR valve, which is used in, starts
Between machine exhaust system and gas handling system, for exhaust gas in exhaust pipe to be controlled to enter air inlet pipe.
Existing intake-air throttle valve, combustion gas Trim valve housings are tubulose, and internal valve plate shape is generally circular.It is opened in valve plate
When degree is smaller, the variation of valve plate aperture is small, and the variation of the circulation area of valve body is greatly.When valve plate aperture is larger, the variation of valve plate aperture
Become smaller instead to the influence of circulation area.And circulation area can influence the air inflow of engine, fuel delivery, show on the engine
Engine control is insensitive when unstable idle speed, higher load, and (overspeed parking easily occurs for load removal of dashing forward, shock loads engine is suppressed
Wait indefinitely problem), the problems such as horizontal bar cyclical variations (IMEP_COV, combustion stability) are larger.
Traditional air throttle is limited to its structure, and there are control accuracy during small guide vane is inadequate, when big aperture controls insensitive
Feature.On the engine to show as during idling engine speed unstable, engine is turned round fast severe or hair during shock load
Motivation suppresses phenomenon of waiting indefinitely, and also brings inconvenience and difficulty to engine calibration.
Therefore, the control accuracy of throttling set aperture how is improved, being that current those skilled in the art are urgently to be resolved hurrily asks
Topic.
Utility model content
In view of this, the utility model provides a kind of throttle valve, to improve the control accuracy of throttling set aperture；This reality
A kind of engine is additionally provided with novel.
In order to achieve the above object, the utility model provides following technical solution：
A kind of throttle valve, including throttling valve chest and the valve plate being set up in the throttling valve chest, the throttling valve casing
Body includes valve body import, valve outlet and the choke zone being set between the valve body import and valve outlet, the valve plate frame
Set on the choke zone；
The inner wall setting of the throttling valve chest is closed the throttling initial point and complete in the valve plate of cooperation with the valve plate
Throttling terminal during opening, the throttle valve inner walls are also set up by the throttling initial point arc transition to the throttling terminal
Throttling curved surface.
Preferably, in above-mentioned throttle valve, the valve plate includes being arranged vertically, and is located at the of the throttling initial point respectively
One throttle position and the second throttle position positioned at the throttling terminal.
Preferably, in above-mentioned throttle valve, the valve plate is when throttling rotation, the section with first throttle position formation
Flow opening angle θ；The end of the valve plate and the throttling spacing d of the throttling curved surface, with the linear direct ratios of throttle opening angle θ
Example relationship.
Preferably, in above-mentioned throttle valve, the choke zone includes closure radius R and the valve that the valve plate is closed
Throttling radius r, the throttling spacing d when plate is opened into throttle position are the difference for being closed radius R and the throttling radius r
The proportionality coefficient at value, the throttling spacing and the throttle opening angle is R/ (150~200).
Preferably, in above-mentioned throttle valve, the proportionality coefficient at the throttling spacing and the throttle opening angle is R/180.
Preferably, in above-mentioned throttle valve, the valve plate surrounds throttling when throttling rotation between the throttling curved surface
Circulation Area, the circulation area S and the linear proportional relationship in throttle opening angle of the throttling Circulation Area.
Preferably, it in above-mentioned throttle valve, is additionally provided on the throttling valve chest to the valve body import and the valve
The differential pressure pickup that the flow difference of body outlet is monitored.
Preferably, in above-mentioned throttle valve, the flow pressure to the valve body import is set respectively on the throttling valve chest
The first pressure sensor and sensed to the second pressure that the flow pressure of the valve outlet is monitored that power is monitored
Device.
A kind of engine, is provided with the air throttle that air inflow is adjusted, and the air throttle is as above any one
Throttle valve described in.
Throttle valve provided by the utility model, including throttling valve chest and the valve plate being set up in throttling valve chest, throttling
Valve chest includes valve body import, valve outlet and the choke zone being set between valve body import and valve outlet, valve plate frame and is set on
Choke zone；The throttling initial point and the throttling when valve plate is opened completely that the inner wall setting of throttling valve chest is closed cooperation with valve plate
Terminal, throttle valve inner walls also set up the throttling curved surface to the terminal that throttles by throttling initial point arc transition.Valve plate is located at throttling
In valve chest, fluid is flowed by valve body import, is flowed out by valve outlet, passes through flip angle of the valve plate in throttling valve chest
Flow control is carried out, valve plate overturns region between the valve chest that throttles, for the choke zone that flow is adjusted.Throttle valve chest
In throttling initial point, inner wall and valve plate, which are closed, to be coordinated, and is opened completely in throttling terminal valve plate, valve plate by with throttling valve chest position
Inner wall spacing variation between throttling initial point and the terminal that throttles, adjusts flow.The inner wall for the valve chest that throttles is set by throttling
The throttling curved surface of initial point arc transition extremely throttling terminal, with the rotation of valve plate so that the end of valve plate and the spacing of throttling curved surface
Even transition, aperture control is more accurate, and throttle valve throttling is unstable caused by avoiding the mutation of valve plate orifice size, throttling control
Precision is more accurate, improves the control accuracy of throttle valve.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is regards structure sectional view on throttle valve provided by the utility model；
Fig. 2 is the front view structure sectional view of throttle valve provided by the utility model；
The right side that Fig. 3 is Fig. 2 regards structure sectional view.
Specific embodiment
The utility model discloses a kind of throttle valves, improve the control accuracy of throttling set aperture；The utility model is also
Provide a kind of engine.
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Embodiment based on the utility model, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in FIG. 1, FIG. 1 is structure sectional view is regarded on throttle valve provided by the utility model；Fig. 2 is carried for the utility model
The front view structure sectional view of the throttle valve of confession；The right side that Fig. 3 is Fig. 2 regards structure sectional view.
The utility model provides a kind of throttle valve, including throttling valve chest 1 and the valve plate being set up in throttling valve chest 1
2, throttling valve chest 1 includes valve body import 11, valve outlet 12 and the section being set between valve body import 11 and valve outlet 12
Area is flowed, valve plate 2 is set up in choke zone；Throttle valve chest 1 inner wall setting with valve plate 2 be closed cooperation throttling initial point 14 and
Throttling terminal 15 when valve plate 2 is opened completely, throttling 1 inner wall of valve chest are also set up by 14 arc transition of throttling initial point to the end that throttles
The throttling curved surface 13 of point 15.Valve plate 2 is located in throttling valve chest 1, and fluid is flowed by valve body import 11, is flowed by valve outlet 12
Go out, flow control is carried out by flip angle of the valve plate 2 in throttling valve chest 1, valve plate 2 is overturn between the valve chest 1 that throttles
Region, for the choke zone that flow is adjusted.Valve chest 1 throttle in throttling initial point 14, inner wall is closed with valve plate 2 to be coordinated,
Opened completely in 15 valve plate 2 of throttling terminal, valve plate 2 by be located at throttling initial point 14 with throttling valve chest 1 and throttle terminal 15 it
Between inner wall spacing variation, adjust flow.The inner wall for the valve chest 1 that throttles is set by 14 arc transition of throttling initial point to the end that throttles
The throttling curved surface 13 of point 15, with the rotation of valve plate 2 so that the end of valve plate 2 and the spacing even transition of throttling curved surface 13, aperture
Control is more accurate, and throttle valve throttling is unstable caused by avoiding the mutation of 2 orifice size of valve plate, and throttling control accuracy is more smart
Standard improves the control accuracy of throttle valve.
In one specific embodiment of this case, valve plate 2 includes being arranged vertically, and is located at the first throttle of throttling initial point 14 respectively
Position and the second throttle position positioned at throttling terminal 15.Since throttling 1 inner wall of valve chest is arc transition structure, and with valve
The rotation of plate 2,2 end of valve plate are gradually changed with throttling 1 inner wall spacing of valve chest so that the valve body import 11 of throttle valve and throttling
Outlet 12 is located at different horizontal lines, to meet the installation requirement of throttle valve, after valve plate 2 is avoided to rotate and installed to throttle valve, with
Valve body import 11 and valve outlet 12 generate interference, need to control the rotational angle of valve plate 2.Valve plate 2 is in throttling initial point
14 by Close All inside throttle valve, and throttle valve is opened completely in throttling terminal 15, when being in throttling initial point 14 with valve plate 2,
The position for closing throttle valve is first throttle position, and when being in throttling terminal 15 with valve plate 2, the position for fully opening throttle valve is
Second throttle position, setting valve plate 2 are mutually perpendicular in first throttle position and the second throttle position, that is, valve plate 2 is in throttling work
When, the angle of throttling rotation is 0 °~90 °, and the rotational angle according to valve plate 2 is to the choke zone range of 1 inner wall of valve chest that throttles
It is configured, the throttle valve volume after structure change is avoided to change greatly, keeps the popularity of its scope of application.
In one specific embodiment of this case, valve plate 2 is when throttling rotation, the throttle opening angle with the formation of first throttle position
θ；The end of valve plate 2 and the throttling spacing d of throttling curved surface 13, with the linear proportional relationships of throttle opening angle θ.Valve plate 2 is by
One throttle position starts to rotate, using the position as the rotation initial point of valve plate 2, with the rotation of valve plate 2, and valve plate 2 and first throttle position
Form a throttle opening angle θ between putting, the circulation area S of fluid changes with the variation of throttle opening angle θ in throttle valve.Valve plate
It is the circulating area of fluid between 2 end and throttling curved surface 13, the size of part circulation area S determines fluid flow
Size.The spacing between circulation area S and 2 end of valve plate and throttling curved surface 13 between valve body 2 and throttling curved surface 13 is related,
Maximum distance between valve plate 2 and throttling curved surface 13 is set as the spacing d that throttles, with becoming larger for throttle opening angle θ, throttling
Spacing d gradually becomes larger, and throttling spacing d and throttle opening angle θ is designed with linear proportional relationship, then by opening throttling
The control of angle θ is spent, the throttling spacing d that can accurately control valve plate between the curved surface that throttles can obtain the flow of throttle valve
Accurate variable quantity adapts to the control of engine air throttle, can accurately control air inflow, improve engine working efficiency and
Energy saving.
Certainly, throttling curved surface 13 can be set from the correspondence of valve plate throttle opening angle θ according to different correspondences
It is fixed, meet the need of work of different operating modes, due to the structure design for the curved surface that throttles, throttle opening angle θ and throttling spacing d can be passed through
Correspondence, achieve the purpose that be precisely controlled throttle-flow, improve the control accuracy of throttle valve.
In one specific embodiment of this case, choke zone includes the closure radius R of the closure of valve plate 2 and valve plate 2 is opened into throttling
Throttling radius r during position, throttling spacing d are the difference for being closed radius R and the radius r that throttles, and throttle spacing d and throttle opening angle
The proportionality coefficient of θ is R/ (150~200).
Meanwhile valve plate surrounds throttling Circulation Area, the circulating face for the Circulation Area that throttles when throttling rotation between throttling curved surface
Product S and the linear proportional relationship in throttle opening angle.
Therefore, because the linear ratio relation of the throttle opening angle θ of valve plate and throttling spacing d, therefore to the stream of throttle valve
Logical area S can be calculated by direct proportion to be precisely controlled.
Specifically, setting is closed radius R, and throttle radius r, set the proportionality coefficient of throttle opening angle θ and throttling spacing d as
K, then the track polar coordinate system equation for the curved surface that throttles are：
R=R+k θ, wherein θ are 0 °~90 °；
So as to obtain, throttling spacing d and the relationship of throttle opening angle θ are；
D=r-R=k θ；
Pass through spacing and the relationship at throttle opening angle of throttling, when the throttle opening angle that can obtain valve plate is θ, corresponding position section
The circulation area S of valve is flowed, when setting valve plate is opened, the Zhou Changwei L of corresponding throttling curved surface, then：
L=2 (π * R+2*d)；
S=2 (π R*d)；
It is derived as：
S=2 (π R*k θ)；
When throttle opening angle θ=90 °, can obtain：
S=π R2；
It is derived as：
2 (π R*k*90)=π R2；
And then it obtains：
K=R/180.
By being derived above it is found that R is constant, k be with the relevant constants of R, then, circulation area S is in throttle opening angle θ
Linear direct proportion is related.
As k=R/180, can maximum flow area be obtained, certainly, this case is not limited to k by minimum throttle valve volume
=R/180, setting ratio coefficient k are R/ (150~200), and k is the relevant constant of maximum opening with throttle opening angle, is passed through
The maximum opening angle of valve plate is controlled, obtains the valve body of different flow control range so that valve body has different opening model
System is contained, so as to according to different use environments, obtain the control effect different to throttle valve.
Preferably, the proportionality coefficient of throttling spacing d and throttle opening angle θ is R/180.
This case throttle-valve structure is applied to engine art, for solar term gate action, is arranged in engine charge pipeline
On, lacking for engine unstable idle speed, high load capacity shock load or prominent control of engine speed energy force difference when unloading load can be improved
Point also reduces the calibration complexity of system.
It supplies and controls for fuel, can so that engine fuel control is more accurate, to engine calibration, fuel phase
Ying Xing, air-fuel ratio control the effect that is all greatly improved.
It is acted on for EGR valve, can equally improve the control accuracy of EGR rules, reduce calibration difficulty.
In one specific embodiment of this case, it is additionally provided on the valve chest 1 that throttles to valve body import 11 and valve outlet 12
The differential pressure pickup 3 that flow difference is monitored.In automotive field, throttle valve applications, aperture is controlled by automobile ECU,
Accurately to obtain the circulation area of throttle valve, by setting differential pressure pickup, valve body import and valve outlet are accurately obtained
Difference in flow realizes the flow monitoring to throttle valve in real time.
In one specific embodiment of this case, set respectively on the valve chest 1 that throttles and the flow pressure of valve body import is supervised
The first pressure sensor of survey and the second pressure sensor being monitored to the flow pressure of valve outlet 12.Fluid flows through
The flow pressure of throttle valve, can be by being respectively arranged at the first pressure sensor and second pressure of valve body import and valve outlet
Sensor obtains pressure.
Differential pressure pickup 3 is fixedly mounted with by bolt, and setting throttling upstream pressure takes mouth 5 and throttle valve on throttling valve chest 1
Pressure takes mouth 6 afterwards, to carry out accurate measurements to the pressure of throttle valve import and export.
By the detection to throttle flow rate, by pressure, differential pressure pickup and, the circulating face of controllable throttle valve
Product according to Bernoulli equation, can precisely obtain the fluid flow of throttle valve circulation, obtain flow feedback, further realize to section
The accuracy of valve control is flowed, throttle valve is solved and controls low precision in small guide vane, control accuracy insensitive shortcoming during open degree.
Based on the throttle valve provided in above-described embodiment, the utility model additionally provides a kind of engine, is provided with
To the air throttle that air inflow is adjusted, the air throttle which is equipped with uses the throttle valve knot provided in above-described embodiment
Structure.
Since the engine employs the throttle valve of above-described embodiment, so the beneficial effect that the engine is brought by throttle valve
Fruit please refers to above-described embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (9)
1. a kind of throttle valve, which is characterized in that described including throttling valve chest and the valve plate being set up in the throttling valve chest
The valve chest that throttles includes valve body import, valve outlet and the choke zone being set between the valve body import and valve outlet, institute
Valve plate frame is stated set on the choke zone；
The inner wall setting of the throttling valve chest is closed the throttling initial point of cooperation with the valve plate and is opened completely in the valve plate
When throttling terminal, the throttle valve inner walls also set up by it is described throttling initial point arc transition to it is described throttling terminal section
Flow curved surface.
2. throttle valve according to claim 1, which is characterized in that the valve plate includes being arranged vertically, and is located at institute respectively
The first throttle position for stating throttling initial point and the second throttle position positioned at the throttling terminal.
3. throttle valve according to claim 2, which is characterized in that the valve plate is when throttling rotation, with the first segment
Flow the throttle opening angle θ that position is formed；The end of the valve plate and the throttling spacing d of the throttling curved surface, are opened with the throttling
Spend the linear proportional relationships of angle θ.
4. throttle valve according to claim 3, which is characterized in that the choke zone includes the closure half that the valve plate is closed
Throttling radius r, the throttling spacing d when diameter R and the valve plate are opened into throttle position are the closure radius R and described
The proportionality coefficient at the difference of throttling radius r, the throttling spacing and the throttle opening angle is R/ (150~200).
5. throttle valve according to claim 4, which is characterized in that the throttling spacing and the ratio at the throttle opening angle
Coefficient is R/180.
6. throttle valve according to claim 3, which is characterized in that the valve plate is bent with the throttling when throttling rotation
Throttling Circulation Area is surrounded between face, circulation area S and the linear direct proportion in the throttle opening angle of the throttling Circulation Area close
System.
7. throttle valve according to claim 1, which is characterized in that be additionally provided on the throttling valve chest to the valve body
The differential pressure pickup that the flow difference of import and the valve outlet is monitored.
8. throttle valve according to claim 7, which is characterized in that set respectively to the valve body on the throttling valve chest
First pressure sensor that the flow pressure of import is monitored and the flow pressure of the valve outlet is monitored
Two pressure sensors.
9. a kind of engine is provided with the air throttle that air inflow is adjusted, which is characterized in that the air throttle is such as
Throttle valve in claim 1-8 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433925.0U CN207554200U (en) | 2017-10-31 | 2017-10-31 | Throttle valve and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433925.0U CN207554200U (en) | 2017-10-31 | 2017-10-31 | Throttle valve and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554200U true CN207554200U (en) | 2018-06-29 |
Family
ID=62681729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721433925.0U Withdrawn - After Issue CN207554200U (en) | 2017-10-31 | 2017-10-31 | Throttle valve and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642418A (en) * | 2017-10-31 | 2018-01-30 | 潍柴动力股份有限公司 | Choke valve and engine |
| WO2019084763A1 (en) * | 2017-10-31 | 2019-05-09 | 潍柴动力股份有限公司 | Throttle valve and engine |
-
2017
- 2017-10-31 CN CN201721433925.0U patent/CN207554200U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642418A (en) * | 2017-10-31 | 2018-01-30 | 潍柴动力股份有限公司 | Choke valve and engine |
| WO2019084763A1 (en) * | 2017-10-31 | 2019-05-09 | 潍柴动力股份有限公司 | Throttle valve and engine |
| CN107642418B (en) * | 2017-10-31 | 2019-12-10 | 潍柴动力股份有限公司 | Throttle valve and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180629 Effective date of abandoning: 20191210 |
|
| AV01 | Patent right actively abandoned |