CN201334959Y - 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
- CN201334959Y CN201334959Y CNU200820239407XU CN200820239407U CN201334959Y CN 201334959 Y CN201334959 Y CN 201334959Y CN U200820239407X U CNU200820239407X U CN U200820239407XU CN 200820239407 U CN200820239407 U CN 200820239407U CN 201334959 Y CN201334959 Y CN 201334959Y
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- 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, which 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 5 to 7 cm; the distance between the center of the helical room and the x abscissa of the center line of the cylinder is 21 to 23 mm; the distance between the end surface of the air channel inlet and the y coordinate of the center line of the cylinder is 88 to 92; the distance between the center line of the end surface of the air channel inlet and the x abscissa is 31 to 33 mm. By adopting the stereo helical air inlet channel, the airflow inside the cylinder with the swirl rate of 2.75 and the flow coefficient of 0.36 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, exploitation φ 90mm cylinder diameter used with tractor diesel engine requires bigger low speed torque, and original diesel engine for automobile spiral inlet duct swirl rate has only 2.5, and smoke intensity and oil consumption exceed standard when causing used with tractor diesel engine low speed.
Summary of the invention
The purpose of this utility model provides that a kind of swirl rate is 2.75, flow coefficient is that 0.36 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 5～7mm to the distance of cylinder centerline y coordinate y, and the volute center is 21～23mm to the distance of cylinder centerline abscissa x; The air flue inlet end face is to distance 88～92mm of cylinder centerline y coordinate y, and air flue inlet end face center line is 31～33mm 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 21～23mm, and R2 is 19～21mm, R3 is 25～27mm, and R4 is 20.5～22.5mm, and R5 is 34～36mm, R6 is 194～198mm, and R7 is 44～46mm.Be provided with the conduit boss in the described volute, the end face of conduit boss is 37～39mm to the distance of cylinder head bottom surface, and air flue import center is to the distance 44～46mm of volute exit end face.Described volute outlet diameter is 31～32mm; Described air flue inlet height is 47～49mm, and described air flue entrance width is 30～32mm.
Adopt that above-mentioned Three-Dimensional Spiral Inlet can produce that swirl rate is 2.75, flow coefficient is air-flow in 0.36 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, be provided with Three-Dimensional Spiral Inlet and cylinder 4 in the diesel engine, spiral inlet duct is made of air flue import 1, volute 2, volute outlet 3, volute 2 centers are 5～7mm to the distance A of cylinder 4 center line y coordinate y, and volute 2 centers are 21～23mm to cylinder 4 center line y coordinate x's apart from B; Air flue import 1 end face is 88～92mm to the distance C of cylinder 4 center line y coordinate y, air flue import 1 end face is 31～33mm to the distance D of cylinder 4 center line abscissa x, volute 2 is by the three-dimensional circular arc R 1 of tangent multistage, R2, R3, R4, R5, R6, R7 combines, R1 is 21～23mm, R2 is 19～21mm, R3 is 25～27mm, R4 is 20.5～22.5mm, R5 is 34～36mm, R6 is 194～198mm, R7 is 44～46mm, be provided with conduit boss 5 in the volute 2, the end face of conduit boss 5 is 37～39mm to the cylinder head bottom surface apart from E, and what air flue import 1 center exported 3 end faces to volute is 44～46mm apart from F, and it is 31～32mm that volute exports 3 diameters; Air flue import 1 height H is 47～49mm, and air flue import 1 width M is 30～32mm.
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 are adjusted, revised, and swirl rate after the test modifications and flow coefficient.At the needs of this kind diesel engine high-eddy ratio, swirl rate is brought up to 2.75, flow coefficient adjusts to 0.36.
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 5～7mm to the distance of cylinder centerline y coordinate y, and the volute center is 21～23mm to the distance of cylinder centerline abscissa x; The air flue inlet end face is to distance 88～92mm of cylinder centerline y coordinate y, and air flue inlet end face center line is 31～33mm 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 21～23mm, R2 is 19～21mm, R3 is 25～27mm, and R4 is 20.5～22.5mm, and R5 is 34～36mm, R6 is 194～198mm, and R7 is 44～46mm.
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 37～39mm to the distance of cylinder head bottom surface, and air flue import center is to the distance 44～46mm 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 31～32mm; Described air flue inlet height is 47～49mm, and described air flue entrance width is 30～32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820239407XU CN201334959Y (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 |
|---|---|---|---|
| CNU200820239407XU CN201334959Y (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 |
|---|---|
| CN201334959Y true CN201334959Y (en) | 2009-10-28 |
Family
ID=41286609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820239407XU Expired - Fee Related CN201334959Y (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) | CN201334959Y (en) |
-
2008
- 2008-12-31 CN CNU200820239407XU patent/CN201334959Y/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 |