CN207261104U - Engine variable air inlet tumble flow mechanism and engine - Google Patents
Engine variable air inlet tumble flow mechanism and engine Download PDFInfo
- Publication number
- CN207261104U CN207261104U CN201721152106.9U CN201721152106U CN207261104U CN 207261104 U CN207261104 U CN 207261104U CN 201721152106 U CN201721152106 U CN 201721152106U CN 207261104 U CN207261104 U CN 207261104U
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- tumble flow
- valve block
- inlet manifold
- air flue
- engine
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 51
- 238000002485 combustion reaction Methods 0.000 description 18
- 239000000446 fuel Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
It the utility model is related to automobile technical field, specifically be a kind of engine variable air inlet tumble flow mechanism and engine, tumble flow including being rotatably connected on inlet manifold air flue (17) port adjusts valve block (18), it is fixed on the air-flow guiding valve block (19) of cylinder cap air intake duct (4) port, the shape that the tumble flow adjusts valve block (18) is U-shaped to be adapted with inlet manifold air flue (17) structure, the tumble flow adjusts two side of the both sides of valve block (18) respectively with inlet manifold air flue (17) and is bonded, the bottom that the tumble flow adjusts valve block (18) is bonded with the downside wall of inlet manifold air flue (17).The tumble flow of the engine variable air inlet tumble flow mechanism adjusts the segment space that valve block prevents take up inlet manifold air flue, the air-flow in inlet manifold air flue is not hindered to upset so as to which tumble flow adjusts valve block, guarantee make inlet manifold air flue should in the case of fully open state airflow smooth, ensure the air inlet effect of engine, so as to ensure that the performance of engine.
Description
Technical field
Automobile technical field is the utility model is related to, being a kind of engine variable air inlet tumble flow mechanism and start specifically
Machine.
Background technology
As outstanding substitute fuel emissions from engines can be greatly lowered, the preparation of methanol can use in methanol
Colm is produced, and preparation technique is ripe, and cost is relatively low.The application of methanol fuel, will necessarily reach more superior discharge water
It is flat, while obtain lower use cost.But the combustion system of methanol is all also not very ripe both at home and abroad, also in conceptual phase.
Methanol combustion characteristics, which belongs to, lights, similar with gasoline using spark ignitor, but methanol is not easy low-temperature burning,
So cold-starting is relatively difficult, in addition methanol input low drainage fuel, it is very strong to reduce discharge capacity.
And it is that tumble flow structure is designed with gasoline engine that engine inlets structure of the prior art, which is typically designed, in bavin
Vortex structure is designed with oil turbine.In gasoline engine, tumble motion is strengthened at compression process initial stage and mid-term, is being pressed
The contracting later stage crushes since moment can occur for drastic mechanical deformation, forms the larger turbulent flow of intensity, this turbulent motion can greatly speed up fire
Flame propagation velocity, suppresses pinking, reduces cyclical variations, improves lean burning ability, improves gasoline engine performance.In diesel engine,
Vortex structure can produce vortex after admitting air into cylinder, be conducive to the mixing of diesel oil and air, optimization combustion process air
Eddy motion energy, is effectively improved burning and the performance of diesel engine.
But, will if the tumble flow structure of air intake duct is directly applied to methanol engine due to methanol combustion characteristics
Have the following disadvantages：Tumble flow structure is formed in intake process around the organized air swirl perpendicular to cylinder-bore axis,
Air-fuel mixture can be insufficient, is not particularly suitable for working under low temperature low load condition, efficiency of combustion is low.
Also, also there will be following deficiency if the vortex structure of air intake duct is directly applied to methanol engine：Vortex
Although structure can lift air-fuel mixture effect, the energy of vortex keeps effect bad, to compression ignition period turbulence energy loss
Lose it is excessive, be unfavorable for high speed and middle high load capacity burning.
Therefore, it is badly in need of a kind of inlet structure with suitable methanol combustion characteristics of design so as to lift methanol efficiency of combustion
Engine.
In addition, it is equipped with engine variable air inlet tumble flow mechanism, the prior art between inlet manifold and cylinder cap in engine
In a kind of petrol engine variable air inlet tumble flow adjusting mechanism (application publication number as disclosed in State Intellectual Property Office：CN
102953841A), including tumble flow adjusts valve block, and it is to be connected to inlet manifold air flue port by shaft that tumble flow, which adjusts valve block, is turned
Axis, which rotates, drives tumble flow adjusting valve block rotation to realize that tumble flow adjusts valve block and carried out to inlet manifold air flue lower part actual internal area
Control, make inlet manifold air flue lower part actual internal area be in completely close, fully open or partially opening, and rolling
Stream adjusts the laminated structure that valve block is plane, in this way, will have the following disadvantages：When the circulation of inlet manifold air flue lower part is cut
Area is in when fully opening, and tumble flow adjusts valve block and shaft still occupies the segment space of inlet manifold air flue, so that tumble flow
Adjust valve block to play the role of hindering upset to the air-flow in inlet manifold air flue, influence makes inlet manifold air flue should be complete
Air-flow nevertheless suffers from interference in the case of opening, influences the air inlet effect of engine, so as to have impact on the use of engine
Performance.
Utility model content
The utility model aims to solve the problem that at least one in above-mentioned technical problem.
Technical problem to be solved in the utility model is to provide a kind of engine variable air inlet tumble flow mechanism, the engine
The tumble flow of variable air inlet tumble flow mechanism adjusts the segment space that valve block prevents take up inlet manifold air flue, so that tumble flow adjusts valve block not
Air-flow in inlet manifold air flue is hindered to upset, guarantee makes inlet manifold air flue should be in the case of fully open state
Airflow smooth, ensures the air inlet effect of engine, so as to ensure that the performance of engine.
In order to solve the above technical problems, the engine variable air inlet tumble flow mechanism of the utility model include be rotatably connected on into
The tumble flow of gas manifold air flue port adjusts valve block, is fixed on the air-flow guiding valve block and driving tumble flow of cylinder cap air intake duct port
The Electric Actuator that valve block rotates is adjusted, the cylinder cap air intake duct is connected with inlet manifold air flue, and the tumble flow adjusts valve block
Shape is U-shaped to be adapted with inlet manifold air passage structure, the tumble flow adjust the both sides of valve block respectively with inlet manifold air flue
Two side fitting, the bottom that the tumble flow adjusts valve block is bonded with the downside wall of inlet manifold air flue.
Tumble flow adjusts valve block and is used to be controlled inlet manifold air flue lower part actual internal area, makes inlet manifold air flue
Lower part actual internal area be in completely close, fully open or partially opening.
With the above structure, have the following advantages that：Due to the tumble flow adjust valve block shape be and inlet manifold gas
Road structure is adapted U-shaped, and the tumble flow adjusts two side of the both sides of valve block respectively with inlet manifold air flue and is bonded, the rolling
The bottom that stream adjusts valve block is bonded with the downside wall of inlet manifold air flue, when inlet manifold air flue, which is in, to be fully opened, tumble flow
The segment space that valve block prevents take up inlet manifold air flue is adjusted, so that tumble flow adjusts valve block not to the air-flow in inlet manifold air flue
Hinder upset, guarantee make inlet manifold air flue should in the case of fully open state airflow smooth, ensure engine
Air inlet effect, so as to have impact on the performance of engine.
On the basis of using above-mentioned technical proposal, there can also be following technical characteristic：
The side wall of the inlet manifold air flue is equipped with the resigning step groove for being used for adjusting valve block to the tumble flow and step down, institute
Tumble flow adjusting valve block is stated to be located in resigning step groove.In this way, on the one hand resigning step groove plays ensures that tumble flow adjusting valve block is smooth
The effect of rotation, on the other hand, after having resigning step groove, is further ensured that tumble flow adjusts valve block and prevents take up inlet manifold air flue
Segment space.
When inlet manifold air flue, which is in, to be fully opened, the tumble flow adjusts the inner surface and inlet manifold air flue of valve block
Wall is parallel.In this way, it can more ensure the air inlet fluency of inlet manifold air flue.
The tumble flow adjusts valve block has resigning inclined-plane, the port of the inlet manifold air flue towards the side of cylinder cap air intake duct
Place is equipped with the baffle coordinated with resigning inclined-plane.Kept away in this way, on the one hand resigning inclined-plane can play to adjust when valve block rotates in tumble flow
Exempt to encounter the effect of inlet manifold air flue upper wall surface.Preferably, resigning inclined-plane is specifically structurally characterized in that：When inlet manifold air flue
Lower part actual internal area is in when completely closing, and resigning inclined-plane is parallel with the axis of inlet manifold air flue, in this way, can be just
Realize that tumble flow adjusts the adjustment effect of valve block and not unnecessary, avoid unnecessary some effects air inlet.
The both sides that the tumble flow adjusts valve block are equipped with axis pin, and mounting base is fixed with the side wall of the inlet manifold air flue,
The axis pin is rotatablely connected with mounting base, and the baffle is fixed in mounting base, and Electric Actuator is connected with drive pin with axis pin
Axis rotates.Thus it is possible, on the one hand, due to being that the both sides that valve block is adjusted in tumble flow are equipped with axis pin, Electric Actuator be connected with axis pin with
Driving bearing pin rotates, in this way, the scheme of the prior art using shaft is avoided, so that when inlet manifold air flue is in complete
During unlatching, axis pin prevents take up the segment space of inlet manifold air flue, so that axis pin does not hinder the air-flow in inlet manifold air flue
Upset.In addition, when the engine variable air inlet tumble flow mechanism is multiple arranged side by side, the mode connected between axis pin can be taken
It is driven.
In addition, the utility model is also disclosed a kind of engine, the engine have engine variable as described above into
Gas tumble flow mechanism.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section at the position of combustion chamber in the utility model embodiment.
Fig. 2 is the diagrammatic cross-section when lower surface of the piston in the utility model embodiment is equipped with ring-type convex ridge.
Fig. 3 is the diagrammatic cross-section at piston in the prior art.
Fig. 4 is the diagrammatic cross-section that the utility model embodiment middle cylinder is sleeved at cylinder cap air intake duct.
Fig. 5 is that tumble flow adjusting valve block makes under inlet manifold air flue in variable air inlet tumble flow mechanism in the utility model embodiment
Part actual internal area is in diagrammatic cross-section when fully opening.
Fig. 6 is that tumble flow adjusting valve block makes under inlet manifold air flue in variable air inlet tumble flow mechanism in the utility model embodiment
Part actual internal area is in diagrammatic cross-section when completely closing.
Fig. 7 is structure diagram of the cylinder cap at air-flow guiding valve block in the utility model embodiment.
Fig. 8 is that the inlet manifold in the utility model embodiment adjusts the structure diagram at valve block in tumble flow.
Fig. 9 is that the tumble flow adjusting valve block in the utility model embodiment makes at inlet manifold air flue lower part actual internal area
Structure diagram when fully opening.
Figure 10 is that the tumble flow adjusting valve block in the utility model embodiment makes inlet manifold air flue lower part actual internal area
In structure diagram when completely closing.
Wherein：
1st, cylinder body；2nd, cylinder sleeve；3rd, piston；4th, cylinder cap air intake duct；5th, cylinder cap；6th, combustion chamber；7th, air inlet；8th, valve；9、
Curved arc section；10th, arcuate side walls；11st, piston crater；12nd, inclined plane；13rd, ring-type convex ridge；14th, the first concave surface；15th, the second concave surface；
16th, inlet manifold；17th, inlet manifold air flue；18th, tumble flow adjusts valve block；19th, air-flow guiding valve block；20th, Electric Actuator；21、
Resigning step groove；22nd, resigning inclined-plane；23rd, baffle；24th, axis pin；25th, mounting base；26th, tumble flow gas；27th, swirl gas.
Embodiment
The essence that those skilled in the art pass on them to work to others skilled in the art is will hereinafter use to lead to
The term often used describes the utility model concept of the disclosure.However, these utility model concepts can be presented as many differences
Form, thus should not be considered limited to embodiments described herein.These embodiments are provided so that present disclosure more
It is detailed and complete, and its scope included is completely passed on to those skilled in the art.It must also be noted that these embodiments not phase
Mutually repel.Component, step or element from one embodiment may be assumed that into may be present or uses in another embodiment.Not
In the case of the scope for departing from embodiment of the disclosure, institute can be substituted with diversified alternative and/or equivalent implementations
The specific embodiment for showing and describing.The application is intended to any modification or modification of covering embodiments discussed herein.For this
Substantially alternative can be put into practice for the technical staff in field using only some aspects in described aspect.Herein
For purposes of illustration, specific numeral, material and configuration are described in embodiment, however, the technical staff in field is not having
In the case of there are these specific details, alternative embodiment can also be put into practice.In other cases, crowd may be omitted or simplified
Well known feature, so as not to make illustrative embodiment be difficult to understand.
In addition, term " first ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or implying phase
To importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " is set in the description of the utility model
Have ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can mechanically connect or be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can is the connection inside two elements；Term " fixation " can be that bolt is fixedly connected and/or screw is fixed and connected
Connect and/or be clamped and/or weld, for the ordinary skill in the art, can understand that above-mentioned term exists with concrete condition
Concrete meaning in the utility model.
Such as Fig. 1,2,4, in one embodiment, a kind of engine, including cylinder body 1, cylinder sleeve 2, piston 3 and there is cylinder
The cylinder cap 5 of lid air intake duct 4, the cylinder cap 5 are connected with cylinder body 1, and the cylinder sleeve 2 is fixed in cylinder body 1, and the piston 3, which slides, to be connected
It is connected in cylinder sleeve 2, combustion chamber 6 is formed between the cylinder sleeve 2 and cylinder cap 5, the end of cylinder cap air intake duct 4 towards combustion chamber 6 is air inlet
Mouth 7, the cylinder cap 5 are equipped with valve 8, have on the side wall of the cylinder cap air intake duct 4 to make the gas in cylinder cap air intake duct 4
Form the tumble flow structure of tumble flow gas 26 and to make the gas in cylinder cap air intake duct 4 form the vortex structure of swirl gas 27,
The gas made in cylinder cap air intake duct 4 forms tumble flow vortex mixing gas after tumble flow structure and vortex structure.
Tumble flow vortex mixing gas specifically refers to the form that tumble flow gas 26 and swirl gas 27 coexist, in this way, when formation
After tumble flow vortex mixing gas, when methanol fuel burns in engine, combine swirl gas 27 can lift oil gas
Mixed effect so as to low speed and load low temperature using advantage and tumble flow gas 26 high speed, middle high load capacity when use advantage, from
And it can effectively lift methanol efficiency of combustion.
On the basis of open above-mentioned technical proposal, there can also be following technical characteristic：
The vortex structure refers to curved arc section 9 of the cylinder cap air intake duct 4 at 7 position of air inlet, and the tumble flow structure is
Refer to the arcuate side walls 10 set on the upper side wall of curved arc section 9, the arcuate side walls 10 of the curved arc section 9 and curved arc section 9 form use
So that the gas in cylinder cap air intake duct 4 forms the tumble flow vortex structure of tumble flow vortex mixing gas.Specifically, curved arc section 9 can be with
It is to be arranged vertically or arranged with the axis direction of cylinder sleeve 2 in certain angle of inclination, arch with the axis direction of cylinder sleeve 2
The arrangement of side wall 10 is that arch is seen as on the axis section from cylinder sleeve 2, and arcuate side walls 10 are located on the upper side wall of curved arc section 9, this
Sample, can make the gas in cylinder cap air intake duct 4 gas into combustion chamber is formed tumble flow vortex mixing in same position section
Gas, so as to ensure that tumble flow vortex mixing gas smoothly enters combustion chamber.
The top land has piston crater 11, and the radius of the piston crater 11 is become larger by bottom to end.
The side wall of the piston crater 11 is inclined plane 12, and lower surface and the inclined plane 12 of the piston crater 11 pass through
Arc surface transition, end surface and the inclined plane 12 of the piston crater 11 pass through arc surface transition.Inclined plane 12 also may be used certainly
To be cancave cambered surface, or inclined plane 12 is combined with cancave cambered surface, this can be considered as technical equivalents.In this way, the prior art
As shown in figure 3, piston crater 11 of the prior art be radius by bottom to end blind hole of a size, so working as tumble flow
After gas 26 encounters the base plane of piston crater 11 into combustion chamber 6, disperseed by the base plane of piston crater 11, so as to make
Into the loss of tumble flow gas 26.And after using the structure of the application, as shown in Figure 1, 2, at this time, fired when tumble flow gas 26 enters
After burning room 6, inclined plane 12 plays the role of transition so that tumble flow gas 26 is able to continue to keep, so as to can guarantee that methanol fuel
Efficiency of combustion.
As shown in Fig. 2, as eligible scheme, the lower surface of the piston crater 11 is equipped with ring-type convex ridge 13,
From the section of axis direction, ring-type convex ridge 13 is the first concave surface 14 close to the side wall of inclined plane 12, and ring-type convex ridge 13 is remote
Side wall from inclined plane 12 is the second concave surface 15.In this way, after tumble flow gas 26 enters combustion chamber 6, at this time, due to ring-type
Under the action of first concave surface 14 of convex ridge 13, the first concave surface 14 forms trench shape structure with inclined plane 12, makes its tumble flow gas 26
Strengthened；In addition, side wall of the ring-type convex ridge 13 away from inclined plane 12 is the second concave surface 15, in this way, recessed equivalent in piston
The bottom in hole 11 forms a cavity 28, and swirl gas 27 can be made to obtain prolonging and deposit at this cavity 28；After this structure,
So that tumble flow gas 26 and swirl gas 27 can effectively continue in the combustion chamber, the burning effect of methanol fuel is further ensured that
Rate.
Such as Fig. 5-10, the engine further includes the inlet manifold 16 with inlet manifold air flue 17, the inlet manifold
16 are connected with cylinder cap 5, and engine variable air inlet tumble flow mechanism, the engine are equipped between the inlet manifold 16 and cylinder cap 5
Variable air inlet tumble flow mechanism include be rotatably connected on 17 port of inlet manifold air flue tumble flow adjust valve block 18, be fixed on cylinder cap into
4 port of air flue air-flow guiding valve block 19 and drive tumble flow adjust valve block 18 rotate Electric Actuator 20, the cylinder cap into
Air flue 4 is connected with inlet manifold air flue 17, and the shape that the tumble flow adjusts valve block 18 is mutually to be fitted with 17 structure of inlet manifold air flue
That answers is U-shaped, and the tumble flow adjusts two side of the both sides of valve block 18 respectively with inlet manifold air flue 17 and is bonded, and the tumble flow is adjusted
The bottom of valve block 18 is bonded with the downside wall of inlet manifold air flue 17.Tumble flow adjusts valve block 18 and is used under inlet manifold air flue 17
Part actual internal area is controlled, and is in 17 lower part actual internal area of inlet manifold air flue and is completely closed, fully opens
Or partially open state.In this way, since the shape that the tumble flow adjusts valve block 18 is to be adapted with 17 structure of inlet manifold air flue
It is U-shaped, the tumble flow adjusts two side of the both sides of valve block 18 respectively with inlet manifold air flue 17 and is bonded, the tumble flow regulating valve
The bottom of piece 18 is bonded with the downside wall of inlet manifold air flue 17, when inlet manifold air flue 17, which is in, to be fully opened, tumble flow tune
Section valve block 18 prevents take up the segment space of inlet manifold air flue 17, so that tumble flow adjusts valve block 18 not in inlet manifold air flue 17
Air-flow hinder upset, guarantee make inlet manifold air flue 17 should in the case of fully open state airflow smooth, ensure
The air inlet effect of engine, so as to ensure that the performance of engine.
The side wall of the inlet manifold air flue 17 is equipped with the resigning step for being used for adjusting valve block 18 to the tumble flow and step down
Groove 21, the tumble flow adjust valve block 18 and are located in resigning step groove 21.In this way, 21 one side of resigning step groove plays guarantee tumble flow
The effect of 18 smooth rotation of valve block is adjusted, on the other hand, after there is resigning step groove 21, is further ensured that tumble flow adjusts valve block 18
Prevent take up the segment space of inlet manifold air flue 17.
When inlet manifold air flue 17, which is in, to be fully opened, the tumble flow adjusts the inner surface and inlet manifold gas of valve block 18
The wall in road 17 is parallel.In this way, it can more ensure the air inlet fluency of inlet manifold air flue 17.
The tumble flow adjusts valve block 18 has resigning inclined-plane 22, the inlet manifold air flue towards the side of cylinder cap air intake duct 4
The baffle 23 coordinated with resigning inclined-plane 22 is equipped with 17 port.In this way, 22 one side of resigning inclined-plane can be played in tumble flow tune
Section valve block 18 avoids encountering the effect of 17 upper wall surface of inlet manifold air flue when rotating.Preferably, 22 specific structure of resigning inclined-plane
Feature is：When 17 lower part actual internal area of inlet manifold air flue, which is in, to be completely closed, resigning inclined-plane 22 and inlet manifold gas
The axis in road 17 is parallel, in this way, can just realize that tumble flow adjusts the adjustment effect of valve block and not unnecessary, avoids unnecessary portion
Dividing influences air inlet.
The both sides that the tumble flow adjusts valve block 18 are equipped with axis pin 24, and peace is fixed with the side wall of the inlet manifold air flue 17
Fill seat 25, the axis pin 24 is rotatablely connected with mounting base 25, and the baffle 23 is fixed in mounting base 25, Electric Actuator 20 and
Axis pin 24 is connected to be rotated with driving bearing pin 24.Thus it is possible, on the one hand, due to being that the both sides that valve block 18 is adjusted in tumble flow are equipped with axis pin
24, Electric Actuator 20 is connected with axis pin 24 and is rotated with driving bearing pin 24, in this way, avoiding of the prior art using shaft
Scheme, so that when inlet manifold air flue 17 is in and fully opens, axis pin 24 prevents take up the segment space of inlet manifold air flue 17,
So as to which axis pin 24 does not hinder to upset to the air-flow in inlet manifold air flue 17.In addition, work as the engine variable air inlet tumble flow machine
When structure is multiple arranged side by side, the mode connected between axis pin 24 can be taken to be driven.
The engine variable air inlet tumble flow mechanism of the utility model is not limited in the present embodiment described to be suitable for methanol
The engine of fuel, engine variable air inlet tumble flow mechanism can be applied to common diesel engine, gasoline engine etc..
The above, is only the preferably feasible implementation example of the utility model, it is impossible to therefore limit to the utility model
Interest field, it is for those skilled in the art, all to be made with the technical solution of the utility model and technical concept
Other various corresponding change should all belong within the protection domain of the utility model claims.
Claims (6)
1. engine variable air inlet tumble flow mechanism, including it is rotatably connected on the tumble flow adjusting valve block of inlet manifold air flue (17) port
(18), the air-flow guiding valve block (19) and driving tumble flow for being fixed on cylinder cap air intake duct (4) port adjust what valve block (18) rotated
Electric Actuator (20), the cylinder cap air intake duct (4) connect with inlet manifold air flue (17), it is characterised in that the tumble flow tune
The shape of section valve block (18) is U-shaped to be adapted with inlet manifold air flue (17) structure, and the tumble flow adjusts the two of valve block (18)
Two side of the side respectively with inlet manifold air flue (17) is bonded, and the tumble flow adjusts bottom and the inlet manifold air flue of valve block (18)
(17) downside wall fitting.
2. engine variable air inlet tumble flow mechanism described in accordance with the claim 1, it is characterised in that the inlet manifold air flue
(17) side wall is equipped with the resigning step groove (21) for being used for adjusting valve block (18) to the tumble flow and step down, the tumble flow regulating valve
Piece (18) is located in resigning step groove (21).
3. engine variable air inlet tumble flow mechanism described in accordance with the claim 1, it is characterised in that when inlet manifold air flue (17)
In when fully opening, the inner surface that the tumble flow adjusts valve block (18) is parallel with the wall of inlet manifold air flue (17).
4. engine variable air inlet tumble flow mechanism described in accordance with the claim 1, it is characterised in that the tumble flow adjusts valve block
(18) there are resigning inclined-plane (22) towards the side of cylinder cap air intake duct (4), at the port of the inlet manifold air flue (17) be equipped with
The baffle (23) that resigning inclined-plane (22) coordinates.
5. according to the engine variable air inlet tumble flow mechanism described in claim 4, it is characterised in that the tumble flow adjusts valve block
(18) both sides are equipped with axis pin (24), and mounting base (25), the axis pin are fixed with the side wall of the inlet manifold air flue (17)
(24) it is rotatablely connected with mounting base (25), the baffle (23) is fixed in mounting base (25), Electric Actuator (20) and axis pin
(24) connect and rotated with driving bearing pin (24).
6. a kind of engine, it is characterised in that the engine includes the engine as described in claim 1 to 5 any one
Variable air inlet tumble flow mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721152106.9U CN207261104U (en) | 2017-09-08 | 2017-09-08 | Engine variable air inlet tumble flow mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721152106.9U CN207261104U (en) | 2017-09-08 | 2017-09-08 | Engine variable air inlet tumble flow mechanism and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261104U true CN207261104U (en) | 2018-04-20 |
Family
ID=61921008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721152106.9U Expired - Fee Related CN207261104U (en) | 2017-09-08 | 2017-09-08 | Engine variable air inlet tumble flow mechanism and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320681A (en) * | 2022-03-17 | 2022-04-12 | 潍柴动力股份有限公司 | Air inlet pipe assembly and optimization method and measuring device thereof |
-
2017
- 2017-09-08 CN CN201721152106.9U patent/CN207261104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320681A (en) * | 2022-03-17 | 2022-04-12 | 潍柴动力股份有限公司 | Air inlet pipe assembly and optimization method and measuring device thereof |
| CN114320681B (en) * | 2022-03-17 | 2022-08-19 | 潍柴动力股份有限公司 | Air inlet pipe assembly and optimization method and measuring device thereof |
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