CN205858505U - Cylinder cover for diesel engine - Google Patents
Cylinder cover for diesel engine Download PDFInfo
- Publication number
- CN205858505U CN205858505U CN201620839751.7U CN201620839751U CN205858505U CN 205858505 U CN205858505 U CN 205858505U CN 201620839751 U CN201620839751 U CN 201620839751U CN 205858505 U CN205858505 U CN 205858505U
- Authority
- CN
- China
- Prior art keywords
- inlet duct
- tangential inlet
- diesel engine
- cylinder cover
- cylinder
- 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
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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
Abstract
The utility model discloses a kind of cylinder cover for diesel engine, including cylinder cap body, this internal tangential inlet duct that is provided with of this cylinder cap, described tangential inlet duct is waveform, and the export processing of described tangential inlet duct has eccentric chamfer.This cylinder cover for diesel engine both can guarantee that engine charge eddy current and charge flow rate coefficient, can reduce cylinder cap height, beneficially arrangement simultaneously.
Description
Technical field
This utility model relates to cylinder head field, particularly to a kind of cylinder cover for diesel engine.
Background technology
Traditional cylinder head uses spiral inlet duct or tangential inlet duct, and the structure of spiral inlet duct is complicated, designs cloth
Putting difficulty big, spiral inlet duct can well ensure induction swirl ratio, but this structure causes charge energy loss relatively big, sends out
Motivation charge flow rate coefficient is on the low side, affects electromotor charging efficiency, and due to the application of Common-rail technology, engine spray pressure is continuous
Improving, fuel atomization effect is become better and better, and presents intake vortex strength and trends towards little swirl ratio；Tradition tangential inlet duct energy
Enough meeting electromotor little swirl ratio demand, design simple in construction compared with spiral inlet duct, arranges the difficulty little construction cycle simultaneously
Short, it is also possible to obtain preferable charge flow rate coefficient and solve the charging efficiency problem of electromotor, but tradition tangential inlet duct is
Take into account intake swirl and charge flow rate coefficient, it is desirable to have bigger underriding angle, cause the air flue whole height too high, thus shadow
Ring engine cylinder cover height placement, cause complete machine aspect ratio spiral inlet duct electromotor high, add electromotor supporting at car load
Difficulty in layout.
The information being disclosed in this background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or imply in any form this information structure existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of cylinder cover for diesel engine, both can guarantee that engine charge eddy current and air inlet
Discharge coefficient, can reduce cylinder cap height, beneficially arrangement simultaneously.
For achieving the above object, this utility model provides a kind of cylinder cover for diesel engine, and including cylinder cap body, this cylinder cap is originally
The internal tangential inlet duct that is provided with, described tangential inlet duct is waveform, and the export processing of described tangential inlet duct has bias to fall
Angle.
Preferably, the airway walls of described tangential inlet duct from entrance to outlet successively by the most downward arc training wall,
Arc training wall and the most downward arc training wall the most upwards are smoothly connected and form.
Compared with prior art, this utility model has the advantages that by arranging corrugated tangential inlet duct
Eccentric chamfer is had, it is ensured that reverse flowing of air flows formula enters the kinetic energy of cylinder, meanwhile, air-flow with the export processing at tangential inlet duct
Moving to cylinder cap porch, eccentric chamfer guides air-flow to do a rotation, the swirl ratio needed for generation, both can guarantee that electromotor entered
Gas eddy stream and charge flow rate coefficient, meanwhile, cylinder cap height is reduced, and can reduce complete machine and arrange height, beneficially car load cloth
Put, and achieve that cylinder head inlet structure is simple, it is short to design and develop the cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation according to cylinder cover for diesel engine of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not limited by detailed description of the invention.
Explicitly indicating that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or it becomes
Change and such as " comprising " or " including " etc. will be understood to comprise stated element or ingredient, and do not get rid of other yuan
Part or other ingredient.
As it is shown in figure 1, according to the cylinder cover for diesel engine of this utility model detailed description of the invention, including cylinder cap body 1, this cylinder
Being provided with tangential inlet duct 2 in lid body 1, tangential inlet duct 2 is waveform, and the export processing of tangential inlet duct 2 has bias to fall
Angle 3.
In such scheme, eccentric chamfer 3 is added by the center certain position of the outlet of chamfering center of circle deviation tangential inlet duct 2
Work forms.Air-flow enters tangential inlet duct 2 through air inlet pipeline, changes air flow direction through waveform, and last air motion arrives
Cylinder cap porch, guides air-flow to do a rotation, the swirl ratio needed for generation through eccentric chamfer 3.The tangential gas of tradition can be solved
The problem that road structure is high, can reduce complete machine and arrange height, beneficially arrangement.
As a kind of preferred embodiment, the airway walls of tangential inlet duct 2 from entrance to outlet successively by the most downward arc
Shape training wall 21, mild arc training wall 22 the most upwards and the most downward arc training wall 23 are smoothly connected and form.We
In case, air-flow enters cylinder cap air intake duct through air inlet pipeline, and the airway walls of inlet mouth section uses a downward arc to lead
Stream wall 21, guides air-flow to do the little accumulation kinetic energy that dives, is an arc training wall 22 upwards being smoothly connected afterwards, draws
Flow guide gathers potential energy to upper punch, the arc training wall 23 of later rapid decrease, it is ensured that reverse flowing of air flows formula enters
The kinetic energy of cylinder, air motion to cylinder cap porch, eccentric chamfer 3 guides air-flow to do a rotation, the swirl ratio needed for generation,
Use this programme can solve the problem that tradition tangential air flue structure is high, complete machine can be reduced and arrange height, beneficially car load cloth
Put.
To sum up, the cylinder cover for diesel engine of the present embodiment, by arranging corrugated tangential inlet duct 2 and at tangential inlet duct
The export processing of 2 has eccentric chamfer 3, it is ensured that reverse flowing of air flows formula enters the kinetic energy of cylinder, and meanwhile, air motion enters to cylinder cap
At Kou, eccentric chamfer 3 guides air-flow to do a rotation, the swirl ratio needed for generation, both can guarantee that engine charge eddy current and had entered
Throughput coefficient, meanwhile, cylinder cap height is reduced, and can reduce complete machine and arrange height, beneficially arrangement, and realize
Cylinder head inlet structure is simple, it is short to design and develop the cycle.
The aforementioned description to specific illustrative embodiment of the present utility model illustrates that and the purpose of illustration.These
Describe and be not wishing to be defined to this utility model disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
A lot of changes and change.The purpose selected exemplary embodiment and describe is to explain certain principles of the present utility model
And reality application, so that those skilled in the art is capable of and utilizes various different example of the present utility model
Property embodiment and various different selection and change.Scope of the present utility model be intended to by claims and etc. similar shape
Formula is limited.
Claims (2)
1. a cylinder cover for diesel engine, including cylinder cap body, it is characterised in that this cylinder cap is the most internal is provided with tangential inlet duct,
Described tangential inlet duct is waveform, and the export processing of described tangential inlet duct has eccentric chamfer.
Cylinder cover for diesel engine the most according to claim 1, it is characterised in that the airway walls of described tangential inlet duct is from entrance
To outlet successively by the most downward arc training wall, mild arc training wall the most upwards and the most downward arc training wall light
Slip forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839751.7U CN205858505U (en) | 2016-08-04 | 2016-08-04 | Cylinder cover for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839751.7U CN205858505U (en) | 2016-08-04 | 2016-08-04 | Cylinder cover for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858505U true CN205858505U (en) | 2017-01-04 |
Family
ID=57657483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620839751.7U Active CN205858505U (en) | 2016-08-04 | 2016-08-04 | Cylinder cover for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014673A (en) * | 2016-08-04 | 2016-10-12 | 广西玉柴机器股份有限公司 | Diesel engine cylinder head |
-
2016
- 2016-08-04 CN CN201620839751.7U patent/CN205858505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014673A (en) * | 2016-08-04 | 2016-10-12 | 广西玉柴机器股份有限公司 | Diesel engine cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |