CN203717151U - Machine body of diesel engine - Google Patents
Machine body of diesel engine Download PDFInfo
- Publication number
- CN203717151U CN203717151U CN201320783352.XU CN201320783352U CN203717151U CN 203717151 U CN203717151 U CN 203717151U CN 201320783352 U CN201320783352 U CN 201320783352U CN 203717151 U CN203717151 U CN 203717151U
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- CN
- China
- Prior art keywords
- hole
- return
- cylinder body
- diesel
- air hole
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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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a machine body of a diesel engine, which comprises a cylinder body and a crankcase; opposite to the rotating direction of a crankshaft in the crankcase, oil return holes are formed in the gas inlet side, and gas return holes are formed in the gas exhaust side to be convenient for oil return and gas return; and the cross sections of the oil return holes and the gas return holes are crescent-shaped, and the oil return holes and the gas return holes are concentric with a bolt hole of a cylinder cover of the cylinder body. The machine body of the diesel engine has the benefits that while the efficiency of an internal combustion engine is ensured, the utilization rate of fuel is improved, the pressure of the cylinder body is balanced, and pollutants discharged are reduced.
Description
Technical field
The utility model is about the diesel engine in field of internal combustion engine, particularly about a kind of diesel-engine body of gas oil separation structure.
Background technique
Diesel engine is automobile vitals, and the structural design of its cylinder body is the principal security that guarantees its performance and used life.
Due to the work characteristics of diesel engine, wherein the structure of relevant Oil-gas Separation is all most important aspect effective utilization or environmental requirement.This be due in diesel engine in operation process, on the one hand because the waste gas after in-cylinder combustion is scurried into crankcase by the gap between piston group and cylinder, cause crankcase pressure excessive, and these waste gas and machine oil particle are mixed to form air-fuel mixture gas, entering atmosphere can pollute, and need to pass to deaerator separation through cylinder body; The machine oil that pumps into cylinder cap by oil pump on the other hand need to flow back to oil sump through body.
More popular housing structure is to design respectively 2-3 spill port and return-air hole in body intake and exhaust side at present, wherein the horizontal straight hole of return-air hole lateral layout connects crankcase, after adopting the motor lateral arrangement of this cylinder body gas oil separation structure, when motor tilts, laterally straight hole is inclined upwardly, and has strengthened the difficulty of oil gas return-air.
In order to improve service behaviour and the emission standard of diesel engine, particularly the performance under multiple extreme working state, need to develop a kind of cylinder body gas oil separation structure.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of diesel-engine body, it comprises cylinder body and crankcase, wherein: the sense of rotation of relatively described crankcase inside crankshaft, in air inlet side, be furnished with spill port, at exhaust side, be furnished with return-air hole, the shape of cross section of described spill port and described return-air hole is crescent shape, and concentric with the cylinder bolt hole of described cylinder body.
The direction of relative crankshaft rotating in the utility model design, the arrangement convenience of spill port and return-air hole oil return and the return-air of whole cylinder body, when guaranteeing internal-combustion engine usefulness, be improved the utilization ratio of fuel, balance the pressure of cylinder body, reduced the pollutant of discharge.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model diesel engine cylinder block;
Fig. 2 is the sectional view of A-A direction in Fig. 1;
Fig. 3 is the sectional view of B-B direction in Fig. 1.
Reference character: 1 cylinder body, 2 return-air holes, 3 spill ports, 4 front side through hole, 5 pressurized machine spill ports, 6 backside via, 7 crankcases, C cylinder body front side, D cylinder body rear side.
Embodiment
As shown in Figures 1 to 3, the utility model provides a kind of diesel-engine body, it comprises cylinder body 1 and crankcase 7, wherein: the sense of rotation of relatively described crankcase 7 inside crankshafts, in air inlet side, be furnished with spill port 3, at exhaust side, be furnished with return-air hole 2, as improvement, as shown in Figure 1, the shape of cross section of described spill port and described return-air hole is crescent shape, and concentric with the cylinder bolt hole of described cylinder body.This cross section is that integral body is rectangle, and there is arc transition centre, in meniscate mode, presents, and it is guaranteeing the constitutionally stable circulation area that simultaneously increases.
The direction of relative crankshaft rotating in the utility model design, the arrangement convenience of spill port and return-air hole oil return and the return-air of whole cylinder body, when guaranteeing internal-combustion engine usefulness, be improved the utilization ratio of fuel, balance the pressure of cylinder body, reduced the pollutant of discharge.
As an embodiment of the present utility model, described spill port 3 and described return-air hole 2 extend through the bottom surface of described cylinder body 1 from described cylinder body 1 end face.This structural design makes, and oil return and return-air in cylinder body are more smooth and easy, has guaranteed whole UNICOM's performance simultaneously, has improved working efficiency.
As another embodiment of the present utility model, as shown in Figure 1, at the cloth of described cylinder body, be set up, comprising the front side C of cylinder body and the rear side D of cylinder body, and described spill port described cylinder body relative to described return-air hole is arranged symmetrically with.As preferably, the described spill port of arranging in air inlet side is 3, describedly at exhaust side, arranges that return-air hole is 3.Described 3 spill ports are linearly evenly arranged, and are arranged symmetrically with the relative cylinder center line layer of 3 return-air holes of all arranging that is in line equally simultaneously.This is arranged symmetrically with the effect of also playing balance and stable cylinder body working environment.
As a preferred embodiment of the present utility model, as shown in Figures 1 to 3, side through hole 4 and backside via 6 before the bi-side, front and back of described return-air hole 2 are respectively equipped with, and described front side through hole 4 and described backside via 6 is connected with described return-air hole 2.This structural design can be improved the technical problem of return-air difficulty, strengthens the rigidity of cylinder body simultaneously.
As the improvement of above-described embodiment, described front side through hole 4 and described backside via 6 is connected with described crankcase 7, and described front side through hole 4 and described backside via 6 are arranged in the oblique upside of described crankcase 7.This arrangement has further improved the technical problem of return-air difficulty, makes internal combustion engine environment and efficiency improve simultaneously, and pollutant reduces.
As the further improvement of above-described embodiment, the motor in described cylinder body 1 in car load during by lateral arrangement run-off the straight, described front side through hole 4 and described backside via 6 towards still keeping, so that the normal return-air of described return-air hole 2; Motor in described cylinder body 1 longitudinally arranged and during run-off the straight in car load, described front side through hole 4 and described backside via 6 in the two one of towards still downward, so that the normal return-air of described return-air hole 2.
Because the working environment of automobile is complicated, the probability of its internal combustion engine cylinders relative position run-off the straight is larger, particularly under irregular pavement conditions, and more needs motor that good power is provided during run-off the straight.Therefore the design has avoided the bad working condition of motor when lateral arrangement or longitudinal layout run-off the straight, has improved return-air function, has guaranteed efficiency and the working environment of internal-combustion engine, has improved the pollutant load of discharge.
As another preferred version of the utility model design, at the place, bottom surface of described cylinder body 1, integrated pressurized machine spill port 5 on described return-air hole 2, to facilitate oil scavenger oil return as shown in Figure 2.
Should be appreciated that the claimed scope of the utility model is not limited to non-limiting embodiments, should be appreciated that non-limiting embodiments describes as just example.The protection domain of the essence that the application will require is more embodied in the scope that independent claims provide, with and dependent claims.
Claims (7)
1. a diesel-engine body, it comprises cylinder body and crankcase, the sense of rotation of relatively described crankcase inside crankshaft is furnished with spill port in air inlet side, at exhaust side, is furnished with return-air hole, it is characterized in that:
The shape of cross section of described spill port and described return-air hole is crescent shape, and concentric with the cylinder bolt hole of described cylinder body.
2. diesel-engine body as claimed in claim 1, is characterized in that: described spill port and described return-air hole extend through the bottom surface of described cylinder body from described cylinder deck.
3. diesel-engine body as claimed in claim 1, is characterized in that: described spill port described cylinder body relative to described return-air hole is arranged symmetrically with.
4. diesel-engine body as claimed in claim 1, is characterized in that: the described spill port of arranging in air inlet side is 3, and described is 3 at exhaust side layout return-air hole.
5. diesel-engine body as claimed in claim 1, is characterized in that: side through hole and backside via before the bi-side, front and back of described return-air hole are respectively equipped with, and described front side through hole and described backside via and described return-air hole are connected; Be connected with described front side through hole and described backside via and described crankcase, and described front side through hole and described backside via are arranged in the oblique upside of described crankcase.
6. diesel-engine body as claimed in claim 5, is characterized in that: the motor in described cylinder body in car load during by lateral arrangement run-off the straight, described front side through hole and described backside via towards still keeping; Motor in described cylinder body longitudinally arranged and during run-off the straight in car load, described front side through hole and described backside via in the two one of towards still downward.
7. diesel-engine body as claimed in claim 1, is characterized in that: at the place, bottom surface of described cylinder body, integrated pressurized machine spill port on described return-air hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783352.XU CN203717151U (en) | 2013-12-02 | 2013-12-02 | Machine body of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783352.XU CN203717151U (en) | 2013-12-02 | 2013-12-02 | Machine body of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717151U true CN203717151U (en) | 2014-07-16 |
Family
ID=51156313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320783352.XU Expired - Fee Related CN203717151U (en) | 2013-12-02 | 2013-12-02 | Machine body of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389691A (en) * | 2014-10-15 | 2015-03-04 | 力帆实业(集团)股份有限公司 | Engine crankcase body oil-gas separation structure |
| CN110067667A (en) * | 2019-06-03 | 2019-07-30 | 广西玉柴机器股份有限公司 | Cylinder in V-arrangement body removes air hole structure |
-
2013
- 2013-12-02 CN CN201320783352.XU patent/CN203717151U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389691A (en) * | 2014-10-15 | 2015-03-04 | 力帆实业(集团)股份有限公司 | Engine crankcase body oil-gas separation structure |
| CN110067667A (en) * | 2019-06-03 | 2019-07-30 | 广西玉柴机器股份有限公司 | Cylinder in V-arrangement body removes air hole structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20191202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |