CN106121760A - Produce inlet valve and the internal combustion engine of the band helical duct of intake swirl - Google Patents
Produce inlet valve and the internal combustion engine of the band helical duct of intake swirl Download PDFInfo
- Publication number
- CN106121760A CN106121760A CN201610585753.2A CN201610585753A CN106121760A CN 106121760 A CN106121760 A CN 106121760A CN 201610585753 A CN201610585753 A CN 201610585753A CN 106121760 A CN106121760 A CN 106121760A
- Authority
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- China
- Prior art keywords
- deflector
- inlet valve
- valve
- helical duct
- intake swirl
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention discloses inlet valve and the internal combustion engine of a kind of band helical duct producing intake swirl, belong to valve actuating mechanism and the gas handling system field of internal combustion engine, described inlet valve includes valve stem and valve retainer, the back side of described valve retainer be provided with multiple arc and bending direction identical make charge air flow formed eddy current deflector, described deflector be provided above fairing cap, described fairing cap is overall in truncated cone type, or described fairing cap includes truncated cone type main body and the arc air guide hole being positioned in described truncated cone type main body.The inlet valve of the band helical duct producing intake swirl of the present invention forms helical duct by deflector between fairing cap and valve retainer, can produce stronger intake swirl when the little lift of inlet valve, can have less intake resistance when inlet valve high-lift again.
Description
Technical field
The present invention relates to valve actuating mechanism and the gas handling system field of internal combustion engine, particularly relate to a kind of band producing intake swirl
The inlet valve of helical duct and internal combustion engine.
Background technology
Internal combustion engine improves its economy, dynamic property and discharge performance by tissue intake swirl.Intake swirl produces
Mode generally has three kinds of modes: tangential air flue, helical intake and the inlet valve of band inducing QI screen.Tangential air flue simple shape, but enter
Atmidometer is big and eddy current is smaller.Helical intake intake vortex strength is higher, but air intake duct is complex-shaped.Tangential air flue and spiral
Air flue is to produce intake swirl by air flue shape.When inlet valve lift is less, owing to the gas flow rate in air flue is relatively low, cut
The eddy current that produces to air flue and helical intake is smaller even can not produce intake swirl.Inlet valve with inducing QI screen is by guiding
Charge air flow flows into cylinder with different angles, produces eddy current under the constraint of cylinder wall surface guides.But the inlet valve of band inducing QI screen
Have a disadvantage in that (1) intake resistance is the biggest；(2) in order to ensure strength of vortex, need to arrange valve rotation-preventing mechanism；(3) set up
Inducing QI screen, makes valve retainer rigidity uneven, and deformation is big, makes the easy eccentric wear of valve, unfavorable to sealing.Therefore, the entering of band inducing QI screen
Valve the most no longer uses on internal combustion engine.In recent years, along with changeable air valve technology especially lift range variable technology
Develop rapidly, in the urgent need to when the little lift of valve, it is possible to organize stronger intake swirl, improve gasoline engine or diesel engine low
Combustibility under speed small load condition, improves its economy, dynamic property and discharge performance.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind of can produce stronger air inlet whirlpool when the little lift of inlet valve
Stream, can have again the inlet valve of band helical duct producing intake swirl of less intake resistance and interior when inlet valve high-lift
Combustion engine.
For solving above-mentioned technical problem, the present invention provides technical scheme as follows:
A kind of inlet valve of the band helical duct producing intake swirl, including valve stem and valve retainer, described valve retainer
The back side be provided with multiple arc and bending direction identical make charge air flow formed eddy current deflector, the top of described deflector
Being provided with fairing cap, described fairing cap is overall in truncated cone type, or described fairing cap includes truncated cone type main body and is positioned at institute
State the arc air guide hole in truncated cone type main body.
Further, the curved line of described deflector is drawn by spiral of Archimedes or involute.
Further, circle outside the formation of each deflector outer rim, described outside diameter of a circle is less than valve retainer internal diameter, appoints
The centrage of one deflector and described outer circular commercial base, outside circle tangent line and deflector centrage by described intersection point are cut
Angle between line is 10 °～80 °.
Further, by the angle between the outside of described intersection point circle tangent line and deflector centerline tangent be 15 °～
60°。
Further, the quantity of described deflector is 3-24, and described deflector is uniformly arranged on the back of the body of described valve retainer
Face.
Further, the arc length of adjacent two deflectors is equal, or the arc length of adjacent two deflectors is not
Equal, described deflector entirety uniform thickness or outwards thickness are gradually increased.
Further, the arc length of described deflector is not more than 3/4ths of described valve retainer radius, described water conservancy diversion
The height of plate is not more than the 1/2 of the maximum lift of described inlet valve, and the thickness of described deflector is not more than the height of described deflector
The 1/2 of degree, the outside circle that each deflector outer rim is formed is not more than 1mm with the gap of inner hole of valve seat ring.
Further, the circular cone base angle of described fairing cap is not less than the circular cone base angle at the described valve retainer back side, described water conservancy diversion
The outside diameter of a circle that the end circular diameter of lid is formed less than or equal to each deflector outer rim, the outside diameter circle of described fairing cap is
The 1/2～9/10 of the end circular diameter of described fairing cap.
Further, outside the end circle of described fairing cap, there is chamfering.
A kind of internal combustion engine, including the inlet valve of the band helical duct of above-mentioned generation intake swirl.
The method have the advantages that
Compared with prior art, the inlet valve of band helical duct producing intake swirl of the present invention and the valve of internal combustion engine
The back side of dish is provided with multiple arc and the identical deflector of bending direction, deflector be provided above fairing cap, at water conservancy diversion
Multiple helical duct is formed by deflector between lid and valve retainer.When inlet valve is positioned at little lift, charge air flow is at water conservancy diversion
Under the common effect of contraction of plate, fairing cap and valve retainer, formed, relative to valve retainer, there is entering of tangential velocity and radial velocity
Flow line.Under the effect of tangential velocity, charge air flow forms stronger intake swirl after entering cylinder in cylinder, it is possible to change
The kind internal combustion engine especially EVAP of non-air throttle gasoline engine, mixing and burning performance, improve its fuel economy and row
Put performance；When inlet valve is positioned at high-lift, major part charge air flow is direct from fairing cap without fairing cap and deflector
The space that top resistance is the least enters cylinder, improves intake resistance during the big load of internal combustion engine, meets internal combustion engine especially
The power performance of non-air throttle gasoline engine.
Accompanying drawing explanation
Fig. 1 be the present invention produce the inlet valve of band helical duct of intake swirl and the inlet valve of internal combustion engine in little lift
Front view during position；
Fig. 2 is that the inlet valve of the inlet valve of band helical duct producing intake swirl of the present invention and internal combustion engine is in high-lift
Front view during position；
Fig. 3 is the vertical view of the inlet valve of the inlet valve of band helical duct producing intake swirl of the present invention and internal combustion engine
Figure, wherein the quantity of deflector is 6, and the arc length of deflector is equal；
Fig. 4 is the vertical view of the inlet valve of the inlet valve of band helical duct producing intake swirl of the present invention and internal combustion engine
Figure, wherein the quantity of deflector is 12, and the arc length of two adjacent deflectors is unequal；
Fig. 5 is that the structure of the fairing cap of the inlet valve of band helical duct producing intake swirl of the present invention and internal combustion engine is shown
Being intended to, wherein fairing cap is overall in truncated cone type；
Fig. 6 is that the structure of the fairing cap of the inlet valve of band helical duct producing intake swirl of the present invention and internal combustion engine is shown
Being intended to, wherein fairing cap includes truncated cone type main body and the arc air guide hole being positioned in this truncated cone type main body.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
On the one hand, the present invention provides the inlet valve 1 of a kind of band helical duct producing intake swirl, such as Fig. 1 to Fig. 6 institute
Show, including valve stem 11 and valve retainer 12, the back side of valve retainer 12 be provided with multiple arc and bending direction identical make air inlet
Air-flow formed eddy current deflector 2, deflector 2 be provided above fairing cap 3, fairing cap 3 entirety is truncated cone type, or leads
Stream lid 3 includes truncated cone type main body and the arc air guide hole being positioned in described truncated cone type main body.
The back side of the valve retainer 12 of the inlet valve 1 of the band helical duct producing intake swirl of the present invention is provided with multiple arc
Shape and the identical deflector 2 of bending direction, deflector 2 be provided above fairing cap 3, logical between fairing cap 3 and valve retainer 12
Cross deflector 2 and form multiple helical duct.When inlet valve 1 is positioned at little lift, charge air flow is gentle at deflector 2, fairing cap 3
Under the common effect of contraction of door dish 12, form the air inlet streamline relative to valve retainer 12 with tangential velocity τ and radial velocity n,
Under the effect of tangential velocity τ, charge air flow forms eddy current in cylinder, and the truncated cone type structure of fairing cap 3 make into
When entraining air stream flows through in helical duct, speed is gradually increased, and forms stronger eddy current, it is possible to improve internal combustion engine outstanding in cylinder
It is the EVAP of non-air throttle gasoline engine, mixing and burning performance, improves fuel consumption and emission performance；Work as air inlet
Door 1 is when being positioned at high-lift, and directly above fairing cap 3, resistance is very without fairing cap 3 and deflector 2 for major part charge air flow
Little space enters cylinder, improves intake resistance during the big load of internal combustion engine, meets internal combustion engine especially non-air throttle vapour
The power performance of oil machine.
As a modification of the present invention, the curved line of deflector 2 is preferably drawn by spiral of Archimedes or involute.
The curved line using spiral of Archimedes or involute to draw deflector 2 makes charge air flow have less flow resistance and be formed
Stronger intake swirl.
Preferably, circle outside the formation of each deflector 2 outer rim, outside this, diameter of a circle φ can be less than valve retainer 4
Internal diameter, the centrage of arbitrary deflector 2 with this outside circle intersection point cut with deflector 2 centrage by the outside of this intersection point circle tangent line
Angle between line be the value of β, β can be 10 °～80 °.Outside circular diameter φ less than the internal diameter of valve retainer 4 ensure that into
Valve 1 does not rubs with valve retainer 4 in reciprocating movement, extends into valve 1 and the service life of valve retainer 4；β
Value in the range of 10 °～80 ° time, between fairing cap 3 and valve retainer 12, form helical duct by deflector 2.Work as air inlet
When door 1 is positioned at little lift, charge air flow, under the common effect of contraction of deflector 2, fairing cap 3 and valve retainer 12, is formed relatively
Have the air inlet streamline of tangential velocity τ and radial velocity n in valve retainer 12, under the effect of tangential velocity τ, charge air flow enters
In cylinder, eddy current is formed after cylinder.
Further, the value of the angle β between these two tangent lines is preferably 15 °～60 °.When the value of β is at 15 °～60 ° of models
When enclosing interior, the eddy current that charge air flow is formed after entering cylinder in cylinder is higher, and effect is more preferable.
Preferably, the quantity of deflector 2 can be 3-24, and deflector 2 can be uniformly arranged on the back side of valve retainer 12.
The quantity of deflector 2 is relevant with the intensity of valve retainer diameter and required eddy current, and valve retainer 12 diameter is the biggest, deflector 2
Quantity then should be the most；The quantity of deflector 2 is the most, and the eddy current that charge air flow produces is the strongest；Equal on valve retainer 12 of deflector 2
Even distribution makes inlet valve 1 have good centre symmetry, it is not necessary to arrange the rotation preventing mechanism of auxiliary, inlet valve 1 firm
Degree is the most uniform, is difficult to eccentric wear.
Further, the arc length of adjacent two deflectors 2 can be equal, or the arc of adjacent two deflectors 2
Length can also be unequal, deflector 2 can overall uniform thickness or outwards thickness be gradually increased.The arc length of deflector 2 with
The quantity of deflector 2 matches, when the quantity of deflector 2 is more and the value of β is bigger, two adjacent deflectors 2
The distance at both ends is more or less the same, and the arc length of two the most adjacent deflectors 2 can be equal, as shown in Figure 3；Work as deflector
When the negligible amounts of 2 and the value of β are less, outside the adjacent distance between two deflector 2 inner edges will be than these two deflectors 2
Distance between edge then can differ relatively big, at this moment for ensureing to form stronger strength of vortex, phase when charge air flow enters deflector
The arc length of two adjacent deflectors 2 can be unequal.In the present embodiment, when adjacent two deflectors 2 arc length not
The when of equal, the arc length of deflector 2 is two kinds, as shown in Figure 4；When the overall uniform thickness of deflector 2, deflector 2 is easy to
Processing, cost is relatively low；The thickness of deflector 2 is outwards gradually increased, here outwards refer to from valve retainer 12 centrally along valve
The radial direction of dish 12 stretches out, when the thickness of deflector 2 is from inside to outside gradually increased, in two adjacent deflectors 2
The distance of edge then can be more or less the same with the distance of these two deflector 2 outer rims, and the eddy current of formation the most just ratio is more uniform, this situation
Under, the arc length of two adjacent deflectors 2 just can be equal, it is not necessary to length is alternately arranged.Here deflector 2 inner edge refers to
Being the deflector 2 end near valve retainer 12 center, deflector 2 outer rim refers to the deflector 2 end away from valve retainer 12 center
Portion.
Further, the arc length of deflector 2 is preferably not greater than 3/4ths of valve retainer 12 radius, deflector 2
Height be not more than inlet valve 1 maximum lift 1/2, the thickness of deflector 2 is not more than the 1/2 of the height of deflector 2, each
The outside circle that deflector 2 outer rim is formed is not more than 1mm with the gap of valve retainer 4 endoporus.This physical dimension of deflector 2 makes
The gross weight obtaining inlet valve 1 merely add about 10% relative to the weight of conventional gas introduction door, and reciprocal inertia force increment is little, to internal combustion
The impact of the valve actuating mechanism of machine is little, the most negligible.
As the another kind of improvement of the present invention, the circular cone base angle of fairing cap 3 is preferably not less than the back side circle of valve retainer 12
Cone base angle θ, the end circular diameter of fairing cap 3The outside diameter of a circle φ formed less than or equal to each deflector 2 outer rim, leads
The outside diameter circle of stream lid 3End circular diameter for described fairing cap1/2～9/10.The circular cone base angle of fairing cap 3 is the least
Design in the circular cone base angle θ of valve retainer 12 so that charge air flow speed v is entering gas through valve retainer 4 and valve retainer 12
Constantly increasing during cylinder, the eddy current of formation is also the most higher；The outside diameter circle of fairing cap 3End circular diameter for fairing cap 31/2～9/10, both can guarantee that when little lift that charge air flow can enter deflector 2 and valve retainer 12 through fairing cap 3
The helical duct formed, can guarantee that again when high-lift major part charge air flow without fairing cap 3 and deflector 2 directly from
The space that above fairing cap 3, resistance is the least enters cylinder, reduces intake resistance.
Preferably, outside the end circle of fairing cap 3, there is chamfering.This structure of fairing cap 3 is energy when inlet valve 1 high-lift
The resistance of enough charge air flow reduces further.
On the other hand, the present invention provides a kind of internal combustion engine, including inlet valve 1.Structure is identical with upper, and here is omitted.
The back side of the valve retainer 12 of the inlet valve 1 of the internal combustion engine of the present invention is provided with multiple arc and bending direction is identical
Deflector 2, deflector 2 be provided above fairing cap 3, between fairing cap 3 and valve retainer 12, form spiral by deflector 2
Passage.When inlet valve 1 is positioned at little lift, charge air flow is at the common effect of contraction of deflector 2, fairing cap 3 and valve retainer 12
Under, form the air inlet streamline relative to valve retainer 12 with tangential velocity τ and radial velocity n, under the effect of tangential velocity τ,
Charge air flow forms stronger eddy current after entering cylinder in cylinder, it is possible to improve internal combustion engine especially non-air throttle gasoline engine
EVAP, mixing and burning performance, improve fuel economy；When inlet valve 1 is positioned at high-lift, major part charge air flow
The space that directly resistance is the least above fairing cap 3 without fairing cap 3 and deflector 2 enters cylinder, improves internal combustion engine
Intake resistance during big load, meets the power performance of internal combustion engine especially non-air throttle gasoline engine.
To sum up, inlet valve and the internal combustion engine of the band helical duct producing intake swirl of the present invention has following useful effect
Really:
(1) inlet valve of the band helical duct producing intake swirl of the present invention has good centre symmetry, it is not necessary to
Arranging the rotation preventing mechanism of auxiliary, the rigidity of inlet valve is the most uniform, is difficult to eccentric wear；
(2) weight gain of the inlet valve of the band helical duct producing intake swirl of the present invention is little, reciprocal inertia force
Increment is little, and the impact on valve actuating mechanism is little, the most negligible；
(3) inlet valve of the band helical duct producing intake swirl of the present invention is good with the matching of internal combustion engine, is not required to multiple
Miscellaneous air intake duct just can produce enough strength of vortexes；
(4) internal combustion engine of the present invention, both can guarantee that inlet valve when little lift, it is strong that charge air flow can produce enough eddy current
Degree, improves the combustibility of internal combustion engine, improves its fuel consumption and emission performance, can guarantee that again and has when inlet valve high-lift
There is less intake resistance, meet the dynamic property of internal combustion engine.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (10)
1. produce an inlet valve for the band helical duct of intake swirl, including valve stem and valve retainer, it is characterised in that described
The back side of valve retainer be provided with multiple arc and bending direction identical make charge air flow formed eddy current deflector, described water conservancy diversion
Plate be provided above fairing cap, described fairing cap is overall in truncated cone type, or described fairing cap includes truncated cone type main body
With the arc air guide hole being positioned in described truncated cone type main body.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 1, it is characterised in that described water conservancy diversion
The curved line of plate is drawn by spiral of Archimedes or involute.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 1, it is characterised in that each water conservancy diversion
Plate outer rim formed outside circle, described outside diameter of a circle be less than valve retainer internal diameter, the centrage of arbitrary deflector with described outside
The round-formed intersection point in side, is 10 °～80 ° by the angle between outside circle tangent line and the deflector centerline tangent of described intersection point.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 3, it is characterised in that by described
Angle between outside circle tangent line and the deflector centerline tangent of intersection point is 15 °～60 °.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 1, it is characterised in that described water conservancy diversion
The quantity of plate is 3-24, and described deflector is uniformly arranged on the back side of described valve retainer.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 1, it is characterised in that adjacent two
The arc length of deflector is equal, or the arc length of adjacent two deflectors is unequal, described deflector entirety uniform thickness or
The outside thickness of person is gradually increased.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 1, it is characterised in that described water conservancy diversion
The arc length of plate is not more than 3/4ths of described valve retainer radius, and the height of described deflector is not more than described inlet valve
The 1/2 of maximum lift, the thickness of described deflector is not more than the 1/2 of the height of described deflector, and each deflector outer rim is formed
Outside circle be not more than 1mm with the gap of inner hole of valve seat ring.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 1, it is characterised in that described water conservancy diversion
The circular cone base angle of lid is less than or equal to each not less than the circular cone base angle at the described valve retainer back side, the end circular diameter of described fairing cap
The outside diameter of a circle that deflector outer rim is formed, the outside diameter circle of described fairing cap is the 1/2 of the end circular diameter of described fairing cap
～9/10.
The inlet valve of the band helical duct of generation intake swirl the most according to claim 8, it is characterised in that described water conservancy diversion
Outside the end circle of lid, there is chamfering.
10. an internal combustion engine, it is characterised in that include arbitrary described band spiral producing intake swirl in claim 1 to 9
The inlet valve of passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585753.2A CN106121760B (en) | 2016-07-22 | 2016-07-22 | Generate the inlet valve and internal combustion engine with helical duct of intake swirl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585753.2A CN106121760B (en) | 2016-07-22 | 2016-07-22 | Generate the inlet valve and internal combustion engine with helical duct of intake swirl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121760A true CN106121760A (en) | 2016-11-16 |
| CN106121760B CN106121760B (en) | 2019-04-02 |
Family
ID=57290397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585753.2A Active CN106121760B (en) | 2016-07-22 | 2016-07-22 | Generate the inlet valve and internal combustion engine with helical duct of intake swirl |
Country Status (1)
| Country | Link |
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| CN (1) | CN106121760B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238088A (en) * | 2017-08-07 | 2017-10-10 | 南京工业大学 | A kind of safe environment protection type flare system based on fire whirl vortex formation mechanism |
| CN107462421A (en) * | 2017-10-12 | 2017-12-12 | 河北工业大学 | Engine can revolve valve experimental provision |
| CN112065601A (en) * | 2020-09-11 | 2020-12-11 | 潍柴动力股份有限公司 | Piston and engine |
| CN112112729A (en) * | 2020-08-28 | 2020-12-22 | 江苏大学 | Variable air inlet tumble flow device of direct injection engine in dual-fuel cylinder |
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| US5099808A (en) * | 1989-03-03 | 1992-03-31 | Ngk Spark Plug Co., Ltd. | Direct injection diesel engine induction system having vortical flow inducing induction valve |
| FR2857052A1 (en) * | 2003-07-04 | 2005-01-07 | Bernard Renault | Inlet valve permeability improving device for heat engine, has gauge mark part of less thickness and in form of truncated cone diverging along direction from interior of inlet/exhaust tube towards combustion chamber |
| CN102003235A (en) * | 2010-12-10 | 2011-04-06 | 重庆隆鑫机车有限公司 | Air valve |
| WO2014125843A1 (en) * | 2013-02-15 | 2014-08-21 | トヨタ自動車 株式会社 | Poppet valve |
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| JPS5474811U (en) * | 1977-11-05 | 1979-05-28 | ||
| JPS5649212U (en) * | 1979-09-25 | 1981-05-01 | ||
| US5099808A (en) * | 1989-03-03 | 1992-03-31 | Ngk Spark Plug Co., Ltd. | Direct injection diesel engine induction system having vortical flow inducing induction valve |
| FR2857052A1 (en) * | 2003-07-04 | 2005-01-07 | Bernard Renault | Inlet valve permeability improving device for heat engine, has gauge mark part of less thickness and in form of truncated cone diverging along direction from interior of inlet/exhaust tube towards combustion chamber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238088A (en) * | 2017-08-07 | 2017-10-10 | 南京工业大学 | A kind of safe environment protection type flare system based on fire whirl vortex formation mechanism |
| CN107462421A (en) * | 2017-10-12 | 2017-12-12 | 河北工业大学 | Engine can revolve valve experimental provision |
| CN107462421B (en) * | 2017-10-12 | 2023-04-11 | 河北工业大学 | Rotatable valve experimental device of engine |
| CN112112729A (en) * | 2020-08-28 | 2020-12-22 | 江苏大学 | Variable air inlet tumble flow device of direct injection engine in dual-fuel cylinder |
| CN112112729B (en) * | 2020-08-28 | 2021-10-12 | 江苏大学 | Variable air inlet tumble flow device of direct injection engine in dual-fuel cylinder |
| CN112065601A (en) * | 2020-09-11 | 2020-12-11 | 潍柴动力股份有限公司 | Piston and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106121760B (en) | 2019-04-02 |
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