CN201334958Y - Helical air inlet channel suitable for diesel with cylinder diameter of Phi 90mm - Google Patents
Helical air inlet channel suitable for diesel with cylinder diameter of Phi 90mm Download PDFInfo
- Publication number
- CN201334958Y CN201334958Y CNU2008202394065U CN200820239406U CN201334958Y CN 201334958 Y CN201334958 Y CN 201334958Y CN U2008202394065 U CNU2008202394065 U CN U2008202394065U CN 200820239406 U CN200820239406 U CN 200820239406U CN 201334958 Y CN201334958 Y CN 201334958Y
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- CN
- China
- Prior art keywords
- cylinder
- distance
- volute
- air flue
- helical
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- 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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- 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 discloses a helical air inlet channel suitable for a diesel with the cylinder diameter of Phi 90mm, and the inside of the diesel is provided with a cylinder. The utility model is characterized in that the helical air inlet channel consists of an air channel inlet, a helical room and a helical room outlet. The distance between the center of the helical room and the y coordinate of the centre line of a cylinder is 6 to 8 cm; the distance between the center of the helical room and the x abscissa of the center line of the cylinder is 22 to 24 mm; the distance between the end surface of the air channel inlet and the y coordinate of the center line of the cylinder is 84 to 88; the distance between the center line of the end surface of the air channel inlet and the x abscissa is 30 to 32 mm. By adopting the stereo helical air inlet channel, the airflow inside the cylinder with the swirl rate of 1.8 and the flow coefficient of 0.33 is generated, so that the air is mixed with fuel completely.
Description
Technical field
It is the spiral inlet duct of Φ 90mm diesel engine that the utility model relates to a kind of cylinder diameter that is applicable to.
Background technique
At present, the Europe III discharging type of exploitation φ 90mm cylinder diameter, original supercharging type the inlet duct flow flow coefficient have only 0.31, can cause the diesel engine intake quantity not sufficient, be not suitable for Europe III discharging type.
Summary of the invention
The purpose of this utility model provides that a kind of swirl rate is 1.8, flow coefficient is that 0.33 the cylinder diameter that is applicable to is the spiral inlet duct of Φ 90mm diesel engine.
The technical solution adopted in the utility model is as follows:
Be applicable to that cylinder diameter is the spiral inlet duct of Φ 90mm diesel engine, described spiral inlet duct is by air flue import, volute, volute export mixes, the volute center is 6～8mm to the distance of cylinder centerline y coordinate y, and the volute center is 22～24mm to the distance of cylinder centerline abscissa x; The air flue inlet end face is to distance 84～88mm of cylinder centerline y coordinate y, and air flue inlet end face center line is 30～32mm to the distance of cylinder centerline abscissa x.Described volute is combined by the three-dimensional circular arc R 1 of tangent multistage, R2, R3, R4, R5, R6, R7, and R1 is 4～6mm, and R2 is 17～19mm, R3 is 22.5～24.5mm, and R4 is 18.5～20.5mm, and R5 is 35～37mm, R6 is 48～52mm, and R7 is 72～75mm.Be provided with the conduit boss in the described volute, the end face of conduit boss is 35.5～37.5mm to the distance of cylinder head bottom surface, and air flue import center is to the distance 45～49mm of volute exit end face.Described volute outlet diameter is 34～36mm; Described air flue inlet height is 41～43mm, and described air flue entrance width is 35～37mm.
Adopt that above-mentioned Three-Dimensional Spiral Inlet can produce that swirl rate is 1.8, flow coefficient is air-flow in 0.33 the cylinder, and air is fully mixed with fuel oil.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model other direction.
Fig. 3 is a three-dimensional structure diagram of the present utility model.
Embodiment
Referring to Fig. 1,2,3, Three-Dimensional Spiral Inlet and cylinder 4 are arranged in the diesel engine, described spiral inlet duct is made of air flue import 1, volute 2, volute outlet 3, volute 2 centers are 6～8mm to the distance of cylinder 4 center line y coordinate y, and volute 2 centers are 22～24mm to the distance of cylinder 4 center line abscissa x; Air flue import 1 end face is to distance 84～88mm of cylinder 4 center line y coordinate y, and air flue import 1 end face center line is 30～32mm to the distance of cylinder 4 center line abscissa x.Described volute 2 is combined by the three-dimensional circular arc R 1 of tangent multistage, R2, R3, R4, R5, R6, R7, and R1 is 4～6mm, and R2 is 17～19mm, R3 is 22.5～24.5mm, and R4 is 18.5～20.5mm, and R5 is 35～37mm, R6 is 48～52mm, and R7 is 72～75mm.Be provided with conduit boss 5 in the described volute 2, the end face of conduit boss 5 is 35.5～37.5mm to the distance of cylinder head bottom surface, and air flue import 1 center exports the distance 45～49mm of 3 end faces to volute.It is 34～36mm that described volute exports 3 diameters; Described air flue import 1 highly is 41～43mm, and described air flue import 1 width is 35～37mm.
Technical solution of the present utility model is: make the spiral inlet duct test box with resin, guaranteeing that its physical dimension satisfies under the prerequisite of usage requirement, on test box, spiral section channel entrance position and size (title sensitive area) are adjusted, revised, and swirl rate after the test modifications and flow coefficient.Need at this kind diesel engine, flow coefficient is brought up to 0.33, swirl rate is adjusted into 1.8.
Claims (4)
1. one kind is applicable to that cylinder diameter is the spiral inlet duct of Φ 90mm diesel engine, it is characterized in that: described spiral inlet duct is by air flue import, volute, volute export mixes, the volute center is 6～8mm to the distance of cylinder centerline y coordinate y, and the volute center is 22～24mm to the distance of cylinder centerline abscissa x; The air flue inlet end face is to distance 84～88mm of cylinder centerline y coordinate y, and air flue inlet end face center line is 30～32mm to the distance of cylinder centerline abscissa x.
2. the cylinder diameter that is applicable to according to claim 1 is the spiral inlet duct of Φ 90mm diesel engine, it is characterized in that: described volute is combined by the three-dimensional circular arc R 1 of tangent multistage, R2, R3, R4, R5, R6, R7, R1 is 4～6mm, R2 is 17～19mm, R3 is 22.5～24.5mm, and R4 is 18.5～20.5mm, and R5 is 35～37mm, R6 is 48～52mm, and R7 is 72～75mm.
3. the cylinder diameter that is applicable to according to claim 1 is the spiral inlet duct of Φ 90mm diesel engine, it is characterized in that: be provided with the conduit boss in the described volute, the end face of conduit boss is 35.5～37.5mm to the distance of cylinder head bottom surface, and air flue import center is to the distance 45～49mm of volute exit end face.
4. the cylinder diameter that is applicable to according to claim 1 is the spiral inlet duct of Φ 90mm diesel engine, it is characterized in that: described volute outlet diameter is 34～36mm; Described air flue inlet height is 41～43mm, and described air flue entrance width is 35～37mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202394065U CN201334958Y (en) | 2008-12-31 | 2008-12-31 | Helical air inlet channel suitable for diesel with cylinder diameter of Phi 90mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202394065U CN201334958Y (en) | 2008-12-31 | 2008-12-31 | Helical air inlet channel suitable for diesel with cylinder diameter of Phi 90mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334958Y true CN201334958Y (en) | 2009-10-28 |
Family
ID=41286608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202394065U Expired - Fee Related CN201334958Y (en) | 2008-12-31 | 2008-12-31 | Helical air inlet channel suitable for diesel with cylinder diameter of Phi 90mm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201334958Y (en) |
-
2008
- 2008-12-31 CN CNU2008202394065U patent/CN201334958Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20131231 |