CN2883685Y - Secondary air passage structure - Google Patents
Secondary air passage structure Download PDFInfo
- Publication number
- CN2883685Y CN2883685Y CN 200620008123 CN200620008123U CN2883685Y CN 2883685 Y CN2883685 Y CN 2883685Y CN 200620008123 CN200620008123 CN 200620008123 CN 200620008123 U CN200620008123 U CN 200620008123U CN 2883685 Y CN2883685 Y CN 2883685Y
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- CN
- China
- Prior art keywords
- air
- cylinder head
- flue
- cylinder
- 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 - Fee Related
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Abstract
The utility model relates to a secondary air channel structure, comprising a first air channel and a second air channel; wherein, the first air channel is arranged in a cylinder body while the second air channel is arranged in a cylinder head; the first air channel and the second air channel are communicated with each other. Therefore, the two-stage air channels formed by the first air channel and the second air channel can guide the secondary air into the nearest position to the exhaust port of the exhausting channel of the cylinder head to lift the changeover efficiency in secondary burning waste gas effectively, and reduce harmful substance in the waste gas. The design of the cylinder head can be simplified greatly without any changes to the volume and the weight of the cylinder head. The secondary air channels are not affected by the heat produced by the cylinder head.
Description
Technical field
The utility model system refers to a kind of secondary air access structure that is applicable to the locomotive engine SAME Secondary Air Management Control especially about a kind of secondary air access structure.
Background technique
Along with the relevant environmental regulation of toxic emission is gradually harsh, for locomotive, installing SAME Secondary Air Management Control additional is imperative with attenuating discharge of poisonous waste amount, to meet environmental regulation.
Generally in SAME Secondary Air Management Control design, most important design no more than the secondary air path, and the secondary air path be configured in somewhat complex design cylinder in, therefore, the secondary air path must be planned especially in detail.
Please consult Fig. 1 simultaneously, schematic appearance, the Fig. 2 that is known locomotive is that known locomotive engine part schematic appearance and Fig. 4 are known engine cylinder head sectional drawings.Wherein, show a locomotive 3, locomotive 3 is equiped with a cylinder 1 and secondary ventilation system 2.The secondary air via configuration method that secondary ventilation system 2 is traditional is to be drilled with a path 14 connecting air outlet flue 112 outlet ports on cylinder head 11, combine with discharging waste gas once more and burns harmful matter in the minimizing waste gas so that air is imported path 14.
Yet cylinder head 11 is complicated parts in the engine, will make the design of cylinder head 11 complicated more if set up the secondary air path again, and increase volume and weight.Moreover the heat that cylinder head 11 is produced also can have influence on path 14, is not very good.
The model utility content
The purpose of this utility model provides a kind of secondary air access structure.
The purpose of this utility model is achieved in that the secondary air access structure is arranged on the cylinder of a locomotive, and this cylinder includes a cylinder head, a cylinder block and a secondary air path.Wherein, cylinder head includes a mating face, and this mating face also is concaved with a firing chamber, and the inside of cylinder head includes an intake duct and an air outlet flue, and intake duct and air outlet flue are communicated to the outside of cylinder head respectively by the firing chamber.
In addition, cylinder block includes a junction plane, and this junction plane is corresponding to being mounted on the mating face of said cylinder head.
In addition, secondary ventilation system includes one first air flue and one second air flue.Wherein, first air flue digs and is located in the cylinder block, and first air flue include one the inlet and an outlet, the inlet of first air flue is communicated to the cylinder block outside, the outlet of first air flue then runs through the junction plane of cylinder block.
Second air flue digs and is located within the cylinder head again, it also includes an inlet and an outlet, the inlet of second air flue runs through the mating face and the corresponding outlet that is communicated to first air flue of cylinder block of cylinder head, and the outlet of second air flue then is the air outlet flue that is communicated in the cylinder head.
The utility model has the advantages that, can utilize the formed secondary air path of first air flue and second air flue that secondary air is imported position near the relief opening of cylinder head air outlet flue, significantly promote the conversion efficiency that waste gas burns once more, and allow the design of secondary air path simplify more, needn't increase the volume and the weight of cylinder head, simultaneously, the heat that cylinder head produced also can not have influence on the secondary air path.
Description of drawings
Fig. 1 is the schematic appearance of known locomotive.
Fig. 2 is known locomotive engine part schematic appearance.
Fig. 3 is the sectional drawing of the secondary air access structure of the utility model one preferred embodiment.
Fig. 4 is the sectional drawing of known engine cylinder head.
The primary clustering symbol description
Cylinder 1 cylinder head 11 mating faces 110
131,212 outlets 132,211 of second air flue, 13 inlets
Secondary ventilation system 2 leading portion paths 201 back segment paths 202
21 air conduits of first air flue, 22 locomotives 3
Embodiment
See also the sectional drawing of Fig. 3 for the secondary air access structure of the utility model one preferred embodiment.Present embodiment shows a cylinder 1, and this cylinder 1 includes a cylinder head 11, a cylinder block 12 and a secondary ventilation system 2, and this cylinder 1 same being mounted on the locomotive 3 (seeing also Fig. 1).
Said cylinder 11 includes a mating face 110, this mating face 110 also is concaved with a firing chamber 113, the inside of cylinder head 11 also includes an intake duct 111, one air outlet flue 112, and second air flue 13 of a secondary ventilation system 2, intake duct 111 is communicated to cylinder head 11 outsides by firing chamber 113 respectively with air outlet flue 112,13 of second air flues are to dig with bore mode to be located at cylinder head 11 inside, and second air flue 13 more includes an inlet 131, and one the outlet 132,131 mating faces 110 of running through cylinder head 11 that wherein enter the mouth export 132 air outlet flues 112 that are communicated to cylinder head 11.
In addition, cylinder block 12 includes a junction plane 120, and this junction plane 120 is corresponding to be located in conjunction with group on the mating face 110 of said cylinder 11.The inside of cylinder block 12 still includes first air flue 21 and the piston 121 corresponding to firing chamber 113 of a secondary ventilation system.First air flue 21 digs with bore mode and is located at cylinder block 12 inside, and include an inlet 212, one outlet 211, one a leading portion path 201 and a back segment path 202, the inlet 212 of first air flue 21 is communicated to cylinder block 12 outsides, an and external secondary air conduit 22, leading portion path 201 and back segment path 202 that 211 of the outlets of first air flue 21 run through junction plane 120, the first air flues 21 of cylinder block 12 are to be communicated with each other.
Can learn by present embodiment, be routed on the cylinder block 12 by extending secondary air, offer the leading portion path that interconnects 201 and back segment path 202 to constitute first air flue 21 at the exhaust side of cylinder block 12, be communicated to the air outlet flue 112 that is positioned at cylinder head 11 via digging second air flue 13 of being located at cylinder head 11 again, not only secondary air can be imported position near the relief opening of air outlet flue 112, effectively promote the conversion efficiency of waste gas secondary combustion, reduce the harmful matter in the waste gas.In addition, the design of cylinder head 11 significantly can be simplified again, can not increased the volume and the weight of cylinder head 11.Moreover the heat that cylinder head 11 is produced also can not have influence on the secondary air path.
Claims (6)
1. secondary air access structure, be to be arranged on the cylinder of a locomotive, this cylinder includes a cylinder head, a cylinder block, reaches a secondary ventilation system, wherein, this cylinder head includes a mating face, and this mating face is concaved with a firing chamber, and the inside of this cylinder head also includes an intake duct, an and air outlet flue, this intake duct and this air outlet flue are communicated to the cylinder head outside by the firing chamber respectively, and cylinder block includes a junction plane, and it is corresponding to being mounted on the mating face of cylinder head; It is characterized in that:
Secondary ventilation system includes at least one first air flue, reaches at least one second air flue, this at least one first air flue digs to be located in the cylinder block, this at least one first air flue includes an inlet, reaches an outlet, this inlet is communicated to the cylinder block outside, this outlet runs through this junction plane, this at least one second air flue digs to be located in the cylinder head, this at least one second air flue includes an inlet, reaches an outlet, this inlet runs through mating face and the corresponding outlet that is communicated to cylinder block, and this outlet is communicated to the air outlet flue of cylinder head.
2. secondary air access structure according to claim 1 is characterized in that at least one first air flue includes a leading portion path, an and back segment path, and this leading portion path and this back segment path communicate with each other.
3. secondary air access structure according to claim 1 is characterized in that at least one first air flue is to form with bore mode.
4. secondary air access structure according to claim 1 is characterized in that at least one second air flue is to form with bore mode.
5. secondary air access structure according to claim 1 is characterized in that secondary ventilation system includes at least one secondary air conduit, and it is connected in this inlet of this at least one first air flue.
6. secondary air access structure according to claim 1 is characterized in that the inside of cylinder block includes a piston, and it is corresponding to the firing chamber of cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620008123 CN2883685Y (en) | 2006-03-15 | 2006-03-15 | Secondary air passage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620008123 CN2883685Y (en) | 2006-03-15 | 2006-03-15 | Secondary air passage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883685Y true CN2883685Y (en) | 2007-03-28 |
Family
ID=37956747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620008123 Expired - Fee Related CN2883685Y (en) | 2006-03-15 | 2006-03-15 | Secondary air passage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883685Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832919A (en) * | 2020-11-16 | 2021-05-25 | 浙江春风动力股份有限公司 | Motorcycle with low pollutant discharge |
-
2006
- 2006-03-15 CN CN 200620008123 patent/CN2883685Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832919A (en) * | 2020-11-16 | 2021-05-25 | 浙江春风动力股份有限公司 | Motorcycle with low pollutant discharge |
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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: 20070328 |