CN208153179U - Cylinder head entering and exhaust channel and engine - Google Patents
Cylinder head entering and exhaust channel and engine Download PDFInfo
- Publication number
- CN208153179U CN208153179U CN201721432988.4U CN201721432988U CN208153179U CN 208153179 U CN208153179 U CN 208153179U CN 201721432988 U CN201721432988 U CN 201721432988U CN 208153179 U CN208153179 U CN 208153179U
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- China
- Prior art keywords
- intake duct
- air inlet
- air intake
- cylinder head
- diaphragm
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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
The utility model provides a kind of cylinder head entering and exhaust channel, including cylinder cap ontology, air intake duct is offered in cylinder cap ontology, the diaphragm being overlapped on air intake duct side wall is provided in air intake duct, the air inlet being connected to air intake duct is offered on diaphragm, the air inlet area of air inlet is less than the air inlet area of air intake duct.The edge of diaphragm and the inner wall of air intake duct overlap, air inlet is opened up on diaphragm, the area of air inlet is less than the air inlet area of air intake duct, therefore air inlet passes through after diaphragm in air intake duct, air-flow velocity and airflow direction generate variation, by controlling the opening direction and perforated area of air inlet, so that the effect of swirl ratio increases in air intake duct, meet engine performance requirement.The utility model additionally provides a kind of engine with above-mentioned cylinder head entering and exhaust channel structure.
Description
Technical field
The utility model relates to technical field of engines, more specifically to a kind of cylinder head entering and exhaust channel and start
Machine.
Background technique
Four-valve cylinder head entering and exhaust channel parallel arrangement, and need larger induction swirl ratio.
As depicted in figs. 1 and 2, Fig. 1 is the structural schematic diagram of existing Four-valve cylinder head；Fig. 2 is the direction A-A in Fig. 1
Cross-sectional view.
Four air intake duct 2` are set in the cylinder cap 1` of cylinder head, are provided with valve retainer 3` in air intake duct 2`.Existing type
When upgrading exploitation needs to increase air intake duct swirl ratio, the mode of change inlet structure is generallyd use to increase swirl ratio.The party
Formula needs re-mold tool, and the period for manufacturing, testing clearance is very long.
Therefore, the difficulty for increasing air intake duct swirl ratio how is reduced, being that current those skilled in the art are urgently to be resolved asks
Topic.
Utility model content
In view of this, the present invention provides a kind of cylinder head entering and exhaust channels, increase air intake duct swirl ratio to reduce
Difficulty；The utility model additionally provides a kind of engine.
In order to achieve the above object, the utility model provides the following technical solutions：
A kind of cylinder head entering and exhaust channel, including cylinder cap ontology, the interior of the cylinder cap ontology offer air intake duct, the air inlet
It is provided with the diaphragm being overlapped on the air intake duct side wall in road, offers on the diaphragm and connects with the air intake duct
Logical air inlet, the air inlet area of the air inlet are less than the air inlet area of the air intake duct.
Preferably, in above-mentioned cylinder head entering and exhaust channel, the air inlet is profiled holes.
Preferably, in above-mentioned cylinder head entering and exhaust channel, the air inlet is that internal diameter is identical with the air intake duct internal diameter
Major arc arcuate apertures.
Preferably, in above-mentioned cylinder head entering and exhaust channel, the diaphragm includes being located at the cylinder cap ontology not
With multiple in air intake duct.
Preferably, in above-mentioned cylinder head entering and exhaust channel, multiple diaphragms are arranged according to same water conservancy diversion direction.
Preferably, in above-mentioned cylinder head entering and exhaust channel, the end setting of the air intake duct is installed in the cylinder cap ontology
On valve retainer, the diaphragm is installed between the valve retainer and the cylinder cap ontology.
Preferably, in above-mentioned cylinder head entering and exhaust channel, the diaphragm with a thickness of 1~3mm.
A kind of engine, including engine body and the cylinder head being set in the engine body, the cylinder head
Entering and exhaust channel have any one as above described in cylinder head entering and exhaust channel structure.
Cylinder head entering and exhaust channel provided by the utility model, including cylinder cap ontology, the interior of cylinder cap ontology offer air intake duct,
It is provided with the diaphragm being overlapped on air intake duct side wall in air intake duct, the air inlet being connected to air intake duct is offered on diaphragm
Hole, the air inlet area of air inlet are less than the air inlet area of air intake duct.Cylinder cap ontology by air intake duct thereon for cylinder provide into
Diaphragm is arranged in gas in air intake duct, and the edge of diaphragm and the inner wall of air intake duct overlap, and guarantees that its mounting structure is stablized
Property.Air inlet is opened up on diaphragm, the air being passed through in air intake duct enters air intake duct by air inlet, due to air inlet
After area is less than the air inlet area of air intake duct, therefore air inlet passes through diaphragm in air intake duct, air-flow velocity and airflow direction are equal
Variation is generated, by controlling the opening direction and perforated area of air inlet, so that the effect of swirl ratio increases in air intake duct, is met
Engine performance requirement.
Detailed description of the invention
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 is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of existing Four-valve cylinder head；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1；
Fig. 3 is the structural schematic diagram of cylinder head exhaust duct provided by the utility model；
Fig. 4 is the cross-sectional view in the direction B-B in Fig. 3.
Specific embodiment
The utility model discloses a kind of cylinder head entering and exhaust channel, the difficulty for increasing air intake duct swirl ratio is reduced；This reality
A kind of engine is additionally provided with novel.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
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.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 3 and Figure 4, Fig. 3 is the structural schematic diagram of cylinder head exhaust duct provided by the utility model；Fig. 4 is Fig. 3
The cross-sectional view in the middle direction B-B.
The utility model provides a kind of cylinder head entering and exhaust channel, including cylinder cap ontology 1, offers in cylinder cap ontology 1
Air intake duct 2 is provided with the diaphragm 3 being overlapped on air intake duct side wall in air intake duct 2, offers on diaphragm 3 and air inlet
The air inlet 31 that road 2 is connected to, the air inlet area of air inlet 31 are less than the air inlet area of air intake duct 2.Cylinder cap ontology 1 passes through thereon
Air intake duct 2 provides air inlet for cylinder, and diaphragm 3, the edge of diaphragm 3 and the inner wall of air intake duct 2 are arranged in air intake duct 2
Overlap joint, guarantees its mounting structure stability.Open up air inlet 31 on diaphragm 3, the air being passed through in air intake duct 2, by into
Stomata 31 enters air intake duct 2, and since the area of air inlet 31 is less than the air inlet area of air intake duct 2, air inlet is logical in air intake duct 2
After crossing diaphragm 3, air-flow velocity and airflow direction generate variation, by the opening direction and the aperture face that control air inlet 31
Product meets engine performance requirement so that the effect of swirl ratio increases in air intake duct 2.
In one specific embodiment of this case, air inlet 31 is profiled holes.The air inlet 31 and air intake duct 2 of diaphragm 3 connect
Logical, air inlet is sent into air intake duct 2 after the blocking of diaphragm 3 in cylinder head, since the area of air inlet 31 is less than air intake duct 2
Area, while air inlet 31 is profiled holes, therefore air inlet can change airflow direction because of the shape of air inlet 31, so that air-flow enters
Biggish vortex is formed when cylinder, changes the induction swirl ratio of engine, is rationally set by size, the shape to profiled holes
Meter, that is, may make air-flow to flow according to predetermined direction, and change the speed of inlet air flow, so that intake swirl meets hair in engine
The swirl ratio that motivation requires.
In one specific embodiment of this case, air inlet 31 is internal diameter major arc arcuate apertures identical with 2 internal diameter of air intake duct.Major arc
The air inlet 31 of arch pore structure, so that extend radially out a minor arc cambered plate of the diaphragm 3 along air intake duct 2, cambered plate is to stretch
The inner wall of air intake duct out is located at air intake duct minor arc position, the partition of bow structure, by diaphragm 3 to 2 minor arc position of air intake duct
Blocking is set, the internal diameter of air inlet 31 is identical as 2 internal diameter of air intake duct, only opens up major arc arcuate apertures, air inlet is after major arc arcuate apertures, gas
Stream accelerates, and changes airflow direction, and air-flow is easy to control, and the adjustment of swirl ratio readily satisfies the air inlet requirement of engine.
In one specific embodiment of this case, diaphragm 3 is more in 1 various inlet road of cylinder cap ontology including being located at
It is a.For the cylinder of Four valve, four air intake ducts are arranged inside, diaphragm 3 is arranged it is multiple, and be located at it is different into
In air flue 2, by changing the airflow direction in multiple air intake ducts 2, so that air-flow interflow is at larger when entering cylinder into air-flow
Vortex, reaches swirl ratio required by engine.
In one specific embodiment of this case, multiple diaphragms 3 are arranged according to same water conservancy diversion direction.Due to diaphragm 3
Arrangement so that air inlet is flowed in the predetermined direction by airflow direction after diaphragm 3.
Specifically, as shown in figure 3, diaphragm 3 is arranged in two neighboring air intake duct 2, the water conservancy diversion direction of diaphragm 3 is same
To, so that the air-flow for eventually entering into cylinder circulates in predetermined air flow track 5, raising engine charge swirl ratio.
In one specific embodiment of this case, the valve retainer 4 being installed on cylinder cap ontology 1 is arranged in the end of air intake duct 2, leads
Stream partition 3 is installed between valve retainer 4 and cylinder cap ontology 1.Diaphragm 3 be arranged in cylinder cap ontology 1 and valve retainer 4 it
Between, the outer diameter of diaphragm 3 is identical as the internal diameter of valve retainer mounting hole, and diaphragm 3 is pressed in valve by valve retainer 4
In seat ring mounting hole.
In one specific embodiment of this case, diaphragm 3 with a thickness of 1~3mm.
The cylinder head entering and exhaust channel provided in based on the above embodiment, the utility model additionally provide a kind of engine, wrap
It includes including engine body and the cylinder head that is set in engine body, the cylinder head in the engine body is provided with as above
The cylinder head entering and exhaust channel provided in embodiment is provided.
Since the engine uses the cylinder head entering and exhaust channel of above-described embodiment, so the engine is by cylinder head into row
Air flue bring beneficial effect please refers to above-described embodiment.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and 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 present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of cylinder head entering and exhaust channel, which is characterized in that including cylinder cap ontology, offer air inlet in the cylinder cap ontology
Road is provided with the diaphragm being overlapped on the air intake duct side wall in the air intake duct, offered on the diaphragm with
The air inlet of the air intake duct connection, the air inlet area of the air inlet are less than the air inlet area of the air intake duct.
2. cylinder head entering and exhaust channel according to claim 1, which is characterized in that the air inlet is internal diameter and the air inlet
The identical major arc arcuate apertures of road internal diameter.
3. cylinder head entering and exhaust channel according to claim 2, which is characterized in that the diaphragm includes being located at institute
It states multiple in cylinder cap ontology various inlet road.
4. cylinder head entering and exhaust channel according to claim 3, which is characterized in that multiple diaphragms are led according to same
Flow direction arrangement.
5. cylinder head entering and exhaust channel according to claim 1, which is characterized in that the end setting of the air intake duct is installed in
Valve retainer on the cylinder cap ontology, the diaphragm are installed between the valve retainer and the cylinder cap ontology.
6. cylinder head entering and exhaust channel according to claim 1, which is characterized in that the diaphragm with a thickness of 1~
3mm。
7. a kind of engine, including engine body and the cylinder head being set in the engine body, which is characterized in that institute
The entering and exhaust channel of cylinder head is stated with the cylinder head entering and exhaust channel structure as described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721432988.4U CN208153179U (en) | 2017-10-31 | 2017-10-31 | Cylinder head entering and exhaust channel and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721432988.4U CN208153179U (en) | 2017-10-31 | 2017-10-31 | Cylinder head entering and exhaust channel and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153179U true CN208153179U (en) | 2018-11-27 |
Family
ID=64412719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721432988.4U Active CN208153179U (en) | 2017-10-31 | 2017-10-31 | Cylinder head entering and exhaust channel and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140678A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Vortex ratio adjusting device suitable for single cylinder engine test |
-
2017
- 2017-10-31 CN CN201721432988.4U patent/CN208153179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140678A (en) * | 2020-04-07 | 2020-05-12 | 潍柴动力股份有限公司 | Vortex ratio adjusting device suitable for single cylinder engine test |
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