CN207583460U - A kind of motorcycle crankcase scheme for exhaust gas circulation system - Google Patents
A kind of motorcycle crankcase scheme for exhaust gas circulation system Download PDFInfo
- Publication number
- CN207583460U CN207583460U CN201721710698.1U CN201721710698U CN207583460U CN 207583460 U CN207583460 U CN 207583460U CN 201721710698 U CN201721710698 U CN 201721710698U CN 207583460 U CN207583460 U CN 207583460U
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- CN
- China
- Prior art keywords
- crankcase
- exhaust gas
- balance shaft
- left cover
- motorcycle
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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.)
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Abstract
The utility model discloses a kind of motorcycle crankcase scheme for exhaust gas circulation system, including left cover, left crankcase and right crankshaft box, the left crankcase and right crankshaft box surround crankcase intracavity, the crankcase intracavity is provided with the balance shaft of half round block of band, one end of the balance shaft passes through left crankcase and is connect by balance shaft oil sealing with left cover, exhaust gas passing away is both provided in the balance shaft and left cover, crankcase intracavity is connected by the exhaust gas passing away in balance shaft with the exhaust gas passing away in left cover.The utility model has the advantages that of simple structure and low cost, service-strong, exhaust gas in crankcase can effectively be discharged using it, prevent machine oil from flowing out, simultaneously, so that crankcase volume is compact, small volume has saved a large amount of cabinet spaces, reduce engine overall volume, enhancing engine is for the versatility of Finished Motorcycle of motorcycle.
Description
Technical field
The utility model is related to a kind of motorcycle crankcase, particularly a kind of motorcycle crankcase scheme for exhaust gas circulation system.
Background technology
At present, for traditional motorcycle engine, in order to discharge while prevent the exhaust gas in crankcase
Machine oil outflow in crankcase, usually in the individually designed exhaust gas labyrinth in crankcase somewhere, can both discharge exhaust gas, be also prevented from
The outflow of machine oil.Although this design is feasible, this design is provided with exhaust gas labyrinth in crankcase, occupies song
Volume in axle box so that crankcase area increases, and engine overall volume is caused to increase, and is pursued with engine compact-sized
Objective is disagreed.
Utility model content
The purpose of this utility model is just to provide a kind of spaces compact, and the motorcycle crankcase that can reduce crankcase volume gives up
The gas circulatory system.
The purpose of this utility model is that technical solution in this way is realized, a kind of motorcycle crankcase waste gas circulation system
System, including left cover, left crankcase and right crankshaft box, the left crankcase and right crankshaft box surround crankcase intracavity,
The crankcase intracavity is provided with the balance shaft of half round block of band, one end of the balance shaft passes through left crankcase and by flat
Weighing apparatus shafting oil envelope is connect with left cover, and exhaust gas passing away is both provided in the balance shaft and left cover, and crankcase intracavity passes through flat
Exhaust gas passing away in weighing apparatus axis is connected with the exhaust gas passing away in left cover.
Wherein, the exhaust gas passing away in the balance shaft include being axially disposed within direct current channel in balance shaft and
The angularly disposed oblique flow channel connected in half round block and with direct current channel, the exhaust apertures of the oblique flow channel are located at half round block
On outer wall.
Further, the oblique flow channel is two, and setting in a certain angle.
Wherein, the angle of described two oblique flow channel centerlines is 30 degree to 90 degree.
Further, the exhaust gas passing away in the left cover includes the vertical passageway being vertically provided in left cover, described perpendicular
It is connected to one end of channel with one end of direct current channel.
By adopting the above-described technical solution, the utility model has, of simple structure and low cost, service-strong is excellent
Point can effectively discharge exhaust gas in crankcase using it, prevent machine oil from flowing out, simultaneously so that crankcase volume is compact, volume compared with
It is small, a large amount of cabinet spaces have been saved, have reduced engine overall volume, enhancing engine is for the versatility of Finished Motorcycle of motorcycle.
Description of the drawings
The description of the drawings of the utility model is as follows：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the balance shaft structure schematic diagram of the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings, but the utility model
These embodiments are not limited to, any improvement or replacement on the present embodiment essence spirit still falls within the utility model
Claim range claimed.
Embodiment 1：As shown in Figure 1, 2, a kind of motorcycle crankcase scheme for exhaust gas circulation system, including left cover 1, left crankcase
2 and right crankshaft box 3, the left crankcase 2 and right crankshaft box 3 surround crankcase intracavity 4, in the crankcase intracavity 4
Be provided with the balance shaft 6 of half round block 5 of band, one end of the balance shaft 6 pass through left crankcase 2 and by balance shaft oil sealing 7 with
Left cover 1 connects, and exhaust gas passing away is both provided in the balance shaft 6 and left cover 1, and crankcase intracavity 4 passes through in balance shaft 6
Exhaust gas passing away connected with the exhaust gas passing away in left cover 1.
Wherein, the exhaust gas passing away in the balance shaft 6 includes the direct current channel 8 being axially disposed in balance shaft 6, with
It is and angularly disposed in half round block 5 and the oblique flow channel 9 that is connected with direct current channel 8, the exhaust apertures 10 of oblique flow channel 9 are located at semicircle
On the outer wall of block 5.
Further, the oblique flow channel 9 is two, and setting in a certain angle；Described two 9 center lines of oblique flow channel
Angle is 30 degree to 90 degree.
Further, the exhaust gas passing away in the left cover 1 includes the vertical passageway 11 being vertically provided in left cover 1, institute
The one end for stating vertical passageway 11 is connected with one end of direct current channel 8.
In the utility model, the exhaust gas in crankcase intracavity 4 enters oblique flow channel 9 by exhaust apertures 10, then passes through
Oblique flow channel 9 carries out direct current channel 8, finally enters vertical passageway 11, the motorcycle waste gas circulatory system is flowed by vertical passageway 11
In handled.
In the utility model, two oblique flow channels 9 mutually reduce exhaust gas discharge pressure, and balance shaft 6 is in high-speed rotation
When half round block 5 covering of the fan can generate larger centrifugal force, the machine oil being detained in exhaust apertures 10 is got rid of by Hui Qu by covering of the fan centrifugal force
Axle box inner cavity 4 ensure that exhaust apertures 10 only have exhaust gas to enter, so as to achieve the purpose that Oil-gas Separation.
Claims (5)
1. a kind of motorcycle crankcase scheme for exhaust gas circulation system, including left cover（1）, left crankcase（2）And right crankshaft box（3）,
The left crankcase（2）And right crankshaft box（3）Surround crankcase intracavity（4）, in the crankcase intracavity（4）It is provided with band
Half round block（5）Balance shaft（6）, it is characterized in that：The balance shaft（6）One end pass through left crankcase（2）And pass through balance
Shafting oil seals（7）With left cover（1）Connection, in the balance shaft（6）And left cover（1）Inside it is both provided with exhaust gas passing away, crankcase
Inner cavity（4）Pass through balance shaft（6）Interior exhaust gas passing away and left cover（1）Interior exhaust gas passing away connection.
2. motorcycle crankcase scheme for exhaust gas circulation system as described in claim 1, it is characterized in that：The balance shaft（6）Interior is useless
Gas passing away includes being axially disposed within balance shaft（6）Interior direct current channel（8）It is and angularly disposed in half round block（5）It is interior and
With direct current channel（8）The oblique flow channel of connection（9）, oblique flow channel（9）Exhaust apertures（10）Positioned at half round block（5）Outer wall on.
3. motorcycle crankcase scheme for exhaust gas circulation system as claimed in claim 2, it is characterized in that：The oblique flow channel（9）It is two
It is a, and setting in a certain angle.
4. motorcycle crankcase scheme for exhaust gas circulation system as claimed in claim 3, it is characterized in that：Described two oblique flow channels（9）
The angle of center line is 30 degree to 90 degree.
5. motorcycle crankcase scheme for exhaust gas circulation system as claimed in claim 4, it is characterized in that：The left cover（1）Interior exhaust gas
Passing away includes being vertically provided at left cover（1）Interior vertical passageway（11）, the vertical passageway（11）One end lead to direct current
Road（8）One end connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710698.1U CN207583460U (en) | 2017-12-11 | 2017-12-11 | A kind of motorcycle crankcase scheme for exhaust gas circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710698.1U CN207583460U (en) | 2017-12-11 | 2017-12-11 | A kind of motorcycle crankcase scheme for exhaust gas circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583460U true CN207583460U (en) | 2018-07-06 |
Family
ID=62736652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721710698.1U Active CN207583460U (en) | 2017-12-11 | 2017-12-11 | A kind of motorcycle crankcase scheme for exhaust gas circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681291A (en) * | 2019-02-01 | 2019-04-26 | 宁波市龙嘉摩托车有限公司 | A kind of centrifugal gas oil separation structure of balance shaft |
-
2017
- 2017-12-11 CN CN201721710698.1U patent/CN207583460U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681291A (en) * | 2019-02-01 | 2019-04-26 | 宁波市龙嘉摩托车有限公司 | A kind of centrifugal gas oil separation structure of balance shaft |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |