CN201321910Y - Helical inlet channel applicable to diesel engine with cylinder diameter of Phi 85mm - Google Patents
Helical inlet channel applicable to diesel engine with cylinder diameter of Phi 85mm Download PDFInfo
- Publication number
- CN201321910Y CN201321910Y CNU2008202394050U CN200820239405U CN201321910Y CN 201321910 Y CN201321910 Y CN 201321910Y CN U2008202394050 U CNU2008202394050 U CN U2008202394050U CN 200820239405 U CN200820239405 U CN 200820239405U CN 201321910 Y CN201321910 Y CN 201321910Y
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- Prior art keywords
- cylinder
- distance
- volute
- diesel engine
- air flue
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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 inlet channel applicable to a diesel engine with a cylinder diameter of Phi 85mm, which is internally provided with a cylinder and is characterized in that the helical inlet channel consists of an air channel inlet, a volute chamber and a volute chamber outlet; distance between the center of the volute chamber and the vertical coordinate Y of the central line of the cylinder is 10.5mm to 12.5mm; distance between the center of the volute chamber and the horizontal coordinate X of the central line of the cylinder is 33.2mm to 35.2mm; distance between the end surface of the air channel inlet and the vertical coordinate Y of the central line of the cylinder is 107mm to 109mm; and distance between the center of the end surface of the air channel inlet and the horizontal coordinate X of the central line of the cylinder is 30.5mm to 32.5mm. The three-dimensional helical inlet channel can generate airflow with a swirl rate of 1.8 and a flow coefficient of 0.37 in the cylinder and cause air to be fully mixed with fuel.
Description
Technical field
It is the spiral inlet duct of Φ 85mm diesel engine that the utility model relates to a kind of cylinder diameter that is applicable to.
Background technique
At present, the supercharged diesel engine of exploitation φ 85mm cylinder diameter, the intake valve diameter is than the 1mm that dwindles of former suction naturally, and the spiral inlet duct swirl rate of original natural aspiration is 2.7, and swirl rate is higher, and diesel engine calibration point smoke intensity and oil consumption are exceeded standard, and is not suitable for the supercharging type.
Summary of the invention
The purpose of this utility model provides that a kind of swirl rate is 2.5, flow coefficient is that 0.31 the cylinder diameter that is applicable to is the spiral inlet duct of Φ 85mm 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 85mm 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 20～22mm 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 17～19mm, and R2 is 22.5～24.5mm, R3 is 18.5～20.5mm, and R4 is 35～37mm, and R5 is 49～51mm, R6 is 243～247mm, and R7 is 98～102mm.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 33～35mm; 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 2.5, flow coefficient is air-flow in 0.31 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, the Three-Dimensional Spiral Inlet of diesel engine and cylinder 4, 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 20～22mm 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 17～19mm, and R2 is 22.5～24.5mm, R3 is 18.5～20.5mm, and R4 is 35～37mm, and R5 is 49～51mm, R6 is 243～247mm, and R7 is 98～102mm.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 33～35mm 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: spiral inlet duct is made 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.At the needs of the low swirl rate of supercharged diesel engine, swirl rate to be repaiied low to 2.5, flow coefficient is modified to 0.31.
Claims (4)
1. one kind is applicable to that cylinder diameter is the spiral inlet duct of Φ 85mm 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 20～22mm 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 85mm 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 17～19mm, R2 is 22.5～24.5mm, R3 is 18.5～20.5mm, and R4 is 35～37mm, and R5 is 49～51mm, R6 is 243～247mm, and R7 is 98～102mm.
3. the cylinder diameter that is applicable to according to claim 1 is the spiral inlet duct of Φ 85mm 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 85mm diesel engine, it is characterized in that: described volute outlet diameter is 33～35mm; 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 |
|---|---|---|---|
| CNU2008202394050U CN201321910Y (en) | 2008-12-31 | 2008-12-31 | Helical inlet channel applicable to diesel engine with cylinder diameter of Phi 85mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202394050U CN201321910Y (en) | 2008-12-31 | 2008-12-31 | Helical inlet channel applicable to diesel engine with cylinder diameter of Phi 85mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321910Y true CN201321910Y (en) | 2009-10-07 |
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ID=41159294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202394050U Expired - Fee Related CN201321910Y (en) | 2008-12-31 | 2008-12-31 | Helical inlet channel applicable to diesel engine with cylinder diameter of Phi 85mm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201321910Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787936A (en) * | 2012-06-15 | 2012-11-21 | 东风朝阳朝柴动力有限公司 | Low-swirl-rate spiral air inlet passage of diesel |
-
2008
- 2008-12-31 CN CNU2008202394050U patent/CN201321910Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787936A (en) * | 2012-06-15 | 2012-11-21 | 东风朝阳朝柴动力有限公司 | Low-swirl-rate spiral air inlet passage of diesel |
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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: 20091007 Termination date: 20131231 |