CN205013138U - Diesel engine cylinder cap structure - Google Patents
Diesel engine cylinder cap structure Download PDFInfo
- Publication number
- CN205013138U CN205013138U CN201520735522.6U CN201520735522U CN205013138U CN 205013138 U CN205013138 U CN 205013138U CN 201520735522 U CN201520735522 U CN 201520735522U CN 205013138 U CN205013138 U CN 205013138U
- Authority
- CN
- China
- Prior art keywords
- intake duct
- inlet duct
- diesel engine
- spiral
- engine 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.)
- Expired - Fee Related
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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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a diesel engine field, concretely relates to diesel engine cylinder cap structure, including spiral intake duct and the tangential intake duct that engine cylinder covered, vortex chamfer has all been opened in the exit of spiral intake duct and tangential intake duct. Eccentric distance between spiral intake duct central line and spiral intake duct vortex chamfer central line and tangential intake duct central line and the tangential intake duct vortex chamfer central line is 0.9-1.1 millimeter. The utility model has the advantages of simple structure improves the eddying ability of air flue, does not influence the cylinder cap air flue, and the eddying can the dynamic height, is favorable to air -fuel mixture, adaptation direct injection spark ignition engine application request.
Description
Technical field
The utility model relates to diesel engine realm, is specifically related to a kind of diesel engine cylinder cover structure.
Background technique
In diesel engine cylinder cover design, General Requirements cylinder cap possesses higher flow coefficient and suitable strength of vortex, promotes air-fuel mixture in cylinder, optimizes in-cylinder combustion.
Model utility content
The purpose of this utility model is to optimize above-mentioned burning, provides a kind of diesel engine cylinder cover structure.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of diesel engine cylinder cover structure, comprises spiral inlet duct and tangential inlet duct that engine cylinder covers, has spiral inlet duct eddy current chamfering and tangential inlet duct eddy current chamfering in the outlet port of spiral inlet duct and tangential inlet duct.
Spiral inlet duct center line and spiral inlet duct eddy current chamfering center line and the throw of eccentric between tangential inlet duct center line and tangential inlet duct eddy current chamfering center line are 0.9 ~ 1.1 millimeter.
The beneficial effects of the utility model are: structure is simple, improve the eddy current Forming ability of air flue, do not affect performance, and eddy current Forming ability are high, is conducive to air-fuel mixture, adapt to in-cylinder direct fuel-injection engine application requirement.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation,
Fig. 2 be of the present utility model one group into and out of air flue structural representation,
Fig. 3 is spiral inlet duct structural representation of the present utility model,
Fig. 4 is tangential inlet duct structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Embodiment: see Fig. 1, Fig. 2, Fig. 3, Fig. 4.
A kind of diesel engine cylinder cover structure, comprises the spiral inlet duct 2 on engine cylinder cover 1 and tangential inlet duct 3, has spiral inlet duct eddy current chamfering 4 and tangential inlet duct eddy current chamfering 5 in the outlet port of spiral inlet duct 2 and tangential inlet duct 3.
Spiral inlet duct center line 6 and spiral inlet duct eddy current chamfering center line 7 and the throw of eccentric between tangential inlet duct center line 8 and tangential inlet duct eddy current chamfering center line 9 are 0.9 ~ 1.1 millimeter.
The beneficial effects of the utility model are: structure is simple, improve the eddy current Forming ability of air flue, do not affect performance, and eddy current Forming ability are high, is conducive to air-fuel mixture, adapt to in-cylinder direct fuel-injection engine application requirement.
What embodiment of the present utility model announced is preferred embodiment; but be not limited thereto; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and change, but only otherwise depart from spirit of the present utility model, all in protection domain of the present utility model.
Claims (2)
1. a diesel engine cylinder cover structure, comprises spiral inlet duct and tangential inlet duct that engine cylinder covers, it is characterized in that: have spiral inlet duct eddy current chamfering and tangential inlet duct eddy current chamfering in the outlet port of spiral inlet duct and tangential inlet duct.
2. a kind of diesel engine cylinder cover structure according to claim 1, is characterized in that: spiral inlet duct center line and spiral inlet duct eddy current chamfering center line and the throw of eccentric between tangential inlet duct center line and tangential inlet duct eddy current chamfering center line are 0.9 ~ 1.1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520735522.6U CN205013138U (en) | 2015-09-22 | 2015-09-22 | Diesel engine cylinder cap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520735522.6U CN205013138U (en) | 2015-09-22 | 2015-09-22 | Diesel engine cylinder cap structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013138U true CN205013138U (en) | 2016-02-03 |
Family
ID=55211747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520735522.6U Expired - Fee Related CN205013138U (en) | 2015-09-22 | 2015-09-22 | Diesel engine cylinder cap structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013138U (en) |
Cited By (2)
| 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 |
| EP3517764A1 (en) * | 2018-01-24 | 2019-07-31 | Mazda Motor Corporation | Cylinder head of engine, internal combustion engine and method of producing cylinder head |
-
2015
- 2015-09-22 CN CN201520735522.6U patent/CN205013138U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| EP3517764A1 (en) * | 2018-01-24 | 2019-07-31 | Mazda Motor Corporation | Cylinder head of engine, internal combustion engine and method of producing cylinder head |
| US10655531B2 (en) | 2018-01-24 | 2020-05-19 | Mazda Motor Corporation | Cylinder head of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20210922 |