CN203570448U - Exhaust duct structure - Google Patents
Exhaust duct structure Download PDFInfo
- Publication number
- CN203570448U CN203570448U CN201320758512.5U CN201320758512U CN203570448U CN 203570448 U CN203570448 U CN 203570448U CN 201320758512 U CN201320758512 U CN 201320758512U CN 203570448 U CN203570448 U CN 203570448U
- Authority
- CN
- China
- Prior art keywords
- valve guide
- guide bushing
- exhaust duct
- mounting hole
- air outlet
- 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 - Lifetime
Links
- 238000007599 discharging Methods 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- 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 an exhaust duct structure, which comprises a curved exhaust duct and a valve guide pipe arranged on the outer side surface of the exhaust duct, wherein a mounting hole is formed in the outer side surface of the exhaust duct, and the valve guide pipe is obliquely arranged in the mounting hole; the outer side surface of the exhaust duct comprises first side surface close to the oblique direction of the valve guide pipe, and a second side surface away from the oblique direction of the valve guide pipe, and the first and second side surfaces are respectively positioned at the two sides of the mounting hole. The exhaust duct structure is characterized in that the first side surface is a plane, and the contact end of first side surface with the valve guide pipe is positioned at the bottom end of the valve guide pipe. The exhaust duct structure provided by the utility model has the beneficial effects of no vortex flow and good flow capacity.
Description
Technical field
The utility model relates to a kind of auto parts and components, specifically a kind of air discharging structure.
Background technique
Some motor is due to space arrangement constraints at present, valve guide bushing mounting point is lower, and air outlet flue is higher, so air outlet flue is charged in valve guide bushing lower end, the outstanding position of valve guide bushing is caused in exhaust process and produce eddy current near the air outlet flue wall of valve guide bushing rear end, increase energy of flow loss, reduced the negotiability of air outlet flue.
Model utility content
The purpose of this utility model is the deficiency existing in order to solve above-mentioned background technology, proposes a kind ofly can not produce the air discharging structure that eddy current and negotiability are good.
In order to realize above object, a kind of air discharging structure that the utility model provides, comprise arc-like rows air flue and the valve guide bushing of being located at air outlet flue outer side surface, described air outlet flue outer side surface has mounting hole, valve guide bushing is oblique to be located in mounting hole, described air outlet flue outer side surface comprises the first side of the close valve guide bushing true dip direction that lays respectively at mounting hole both sides and away from the second side of valve guide bushing true dip direction, it is characterized in that: described the first side is plane, the contact jaw of the first side and valve guide bushing is positioned at the bottom of valve guide bushing.
Preferably, the bottom of described valve guide bushing is provided with outer chamfering, and the first side and outer chamfering are tangent.
Preferably, the mounting hole interference fit of described valve guide bushing and air outlet flue outer side surface.
The beneficial effects of the utility model: because the contact jaw of the first side and valve guide bushing is positioned at the bottom of valve guide bushing, eliminated the sinking space forming after existing valve guide bushing bottom is charged in air outlet flue, therefore the air-flow in air outlet flue can not form eddy current after valve guide bushing, reduce energy of flow loss, augmented flow coefficient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is existing air discharging structure schematic diagram;
In figure: air outlet flue 1, the first side 1.1, the second side 1.2, valve guide bushing 2.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: as shown in Figure 1 and Figure 2, a kind of air discharging structure that the utility model is designed, comprises arc-like rows air flue 1 and the valve guide bushing 2 of being located at air outlet flue 1 outer side surface.Wherein, air outlet flue 1 outer side surface has mounting hole 1.3, and valve guide bushing 2 is oblique to be located in mounting hole 1.3, mounting hole 1.3 interference fit of valve guide bushing 2 and air outlet flue 1 outer side surface.
Because the first side 1.1 and the contact jaw of valve guide bushing 2 are positioned at the bottom of valve guide bushing 2, eliminated the sinking space that air outlet flue 1 interior rear formation is charged in existing valve guide bushing 2 bottoms, therefore the air-flow in air outlet flue 1 can not form eddy current after valve guide bushing 2, reduce energy of flow loss, augmented flow coefficient.
The above, be only preferred embodiment of the present utility model, not the utility model structure done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.
Claims (3)
1. an air discharging structure, comprise arc-like rows air flue (1) and be located at the valve guide bushing (2) of air outlet flue (1) outer side surface, described air outlet flue (1) outer side surface has mounting hole (1.3), valve guide bushing (2) is oblique to be located in mounting hole (1.3), described air outlet flue (1) outer side surface comprises first side (1.1) of close valve guide bushing (2) true dip direction that lays respectively at mounting hole (1.3) both sides and away from second side (1.2) of valve guide bushing (2) true dip direction, it is characterized in that: described the first side (1.1) is plane, the contact jaw of the first side (1.1) and valve guide bushing (2) is positioned at the bottom of valve guide bushing (2).
2. air discharging structure according to claim 1, is characterized in that: the bottom of described valve guide bushing (2) is provided with outer chamfering, and the first side (1.1) are tangent with outer chamfering.
3. air discharging structure according to claim 1, is characterized in that: mounting hole (1.3) interference fit of described valve guide bushing (2) and air outlet flue (1) outer side surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758512.5U CN203570448U (en) | 2013-11-26 | 2013-11-26 | Exhaust duct structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758512.5U CN203570448U (en) | 2013-11-26 | 2013-11-26 | Exhaust duct structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570448U true CN203570448U (en) | 2014-04-30 |
Family
ID=50538182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320758512.5U Expired - Lifetime CN203570448U (en) | 2013-11-26 | 2013-11-26 | Exhaust duct structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287859A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
-
2013
- 2013-11-26 CN CN201320758512.5U patent/CN203570448U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287859A (en) * | 2020-05-13 | 2020-06-16 | 潍柴动力股份有限公司 | Cylinder cover and gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |