CN101575996A - Built-in channel crankcase ventilation structure of cylinder body - Google Patents
Built-in channel crankcase ventilation structure of cylinder body Download PDFInfo
- Publication number
- CN101575996A CN101575996A CNA2008100506840A CN200810050684A CN101575996A CN 101575996 A CN101575996 A CN 101575996A CN A2008100506840 A CNA2008100506840 A CN A2008100506840A CN 200810050684 A CN200810050684 A CN 200810050684A CN 101575996 A CN101575996 A CN 101575996A
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- cylinder body
- crankcase
- channel
- ventilation
- cylinder
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a built-in channel crankcase ventilation structure of a cylinder body, which is characterized in that ventilation hole structures are arranged in all cylinder crankcases of the cylinder body; a ventilation hole is arranged on the upper part of each cylinder crankcase of the cylinder body near the main bearing wall; all of the ventilation holes are connected with a main channel at the upper part of the cylinder body through upward channels of the side face of the cylinder body; the main channel is provided with a general ventilation hole connected with external crankcase ventilation system parts. The invention has the characteristics that ventilation of the crankcase is smooth and easy; the pressure in the crankcase is stable; flow speed of gas in the crankcase and the ventilation channel is uniform and the flow speed is low; oil quantity brought by the gas is less; the structure is reasonable; the shape is optimized; and the invention completely meets requirements of modern heavy-duty diesel engines to the crankcase ventilation system.
Description
Technical field
The invention belongs to the technical field of engine cylinder introversion axle box aeration structure, particularly built-in channel crankcase ventilation structure of cylinder body.
Background technique
In motor, guarantee that the machine oil that pressure stability, exhausted by crankcase are smooth and easy, exhausted by crankcase is taken away in the crankcase is few as far as possible most important to the discharging of engine motor oil consumption and complete machine.
At present, most engine crankshaft ventilation systems all adopt in the cylinder head cover cap and arrange ventilating opening structure; This structural disadvantages is, the oil content of gas is big in the cylinder cap cover cap, and the oil level that gas is taken away is many, causes engine motor oil consumption height.Also having the part engine crankshaft ventilation system is to arrange ventilated port on cylinder block, the position of getting gas generally only limits to the crankcase position of some cylinders, this causes the gas flow pattern in the every cylinder crankshaft case of motor inconsistent, gas flow rates is inhomogeneous, in the too high zone of local gas flow velocity, gas can be taken away a large amount of machine oil, and the engine motor oil consumption is increased.
Summary of the invention
At the said structure defect situation, the purpose of this invention is to provide a kind of built-in channel crankcase ventilation structure of cylinder body.
Technological scheme of the present invention is achieved in that
Built-in channel crankcase ventilation structure of cylinder body, it is characterized by: ventilated port is arranged near main bearing wall place in the top at the every cylinder crankshaft case of cylinder block, all ventilated ports link to each other with the main passage on cylinder body top by the passage that side of cylinder block makes progress, and have total ventilated port to be connected with outside crankcase ventilation system parts on the main passage.
Characteristics of the present invention are: crankcase ventilation is smooth and easy, crankcase pressure is stable, and crankcase is interior and the interior gas flow rates of vent passages is even and flow velocity is low, and the oil level that gas is taken away is few, rational in infrastructure, Shape optimization satisfy the requirement of modern heavy-duty diesel engine to crankcase ventilation system fully.
Description of drawings
Fig. 1 is a structural drawing of the present invention;
Fig. 2 is that A-A of the present invention is to sectional drawing;
Fig. 3 is that B-B of the present invention is to sectional drawing.
Specific embodiments
Describe specific embodiments of the present invention in detail below in conjunction with accompanying drawing.
Built-in channel crankcase ventilation structure of cylinder body, it is characterized by: ventilated port 2 is arranged near main bearing wall place in the top at the every cylinder crankshaft case 4 of cylinder block, all ventilated ports 2 link to each other with the main passage 1 on cylinder body top by the passage 3 that side of cylinder block makes progress, and have total ventilated port to be connected with outside crankcase ventilation system parts on main passage 1.
Embodiment:
As Fig. 1, Fig. 2 and shown in Figure 3, in the design process of CA6M2 engine crankshaft ventilation system, adopted the structure that in cylinder block, all is furnished with ventilated port 2 in all cylinder crankshaft casees 4; Top at the every cylinder crankshaft case 4 of cylinder block arranges that near main bearing wall place ventilated port 2, all ventilated ports 2 link to each other with the main passage 1 on cylinder body top by the passage 3 that side of cylinder block makes progress; Being provided with total ventilated port on main passage 1 is connected with outside crankcase ventilation system parts; For the oil droplet of avoiding the crankshaft system rotation to dish out enters ventilated port 2, with the crankshaft rotating direction side of ventilated port 2 designs at cylinder body.
Claims (2)
1, built-in channel crankcase ventilation structure of cylinder body, it is characterized by: ventilated port (2) is arranged near main bearing wall place in the top at the every cylinder crankshaft case of cylinder block (4), the passage (3) that all ventilated ports (2) make progress by side of cylinder block links to each other with the main passage (1) on cylinder body top, has total ventilated port to be connected with outside crankcase ventilation system parts on main passage (1).
2, built-in channel crankcase ventilation structure of cylinder body according to claim 1 is characterized by: described ventilated port (2) design is in the crankshaft rotating direction side of cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100506840A CN101575996A (en) | 2008-05-07 | 2008-05-07 | Built-in channel crankcase ventilation structure of cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100506840A CN101575996A (en) | 2008-05-07 | 2008-05-07 | Built-in channel crankcase ventilation structure of cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101575996A true CN101575996A (en) | 2009-11-11 |
Family
ID=41271045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100506840A Pending CN101575996A (en) | 2008-05-07 | 2008-05-07 | Built-in channel crankcase ventilation structure of cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101575996A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849373A (en) * | 2013-12-25 | 2016-08-10 | 株式会社利富高 | PCV valve |
| CN109415959A (en) * | 2016-10-06 | 2019-03-01 | 宝马股份公司 | For making the device of the exhausted by crankcase of internal combustion engine |
-
2008
- 2008-05-07 CN CNA2008100506840A patent/CN101575996A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849373A (en) * | 2013-12-25 | 2016-08-10 | 株式会社利富高 | PCV valve |
| CN105849373B (en) * | 2013-12-25 | 2018-06-15 | 株式会社利富高 | PCV valve |
| CN109415959A (en) * | 2016-10-06 | 2019-03-01 | 宝马股份公司 | For making the device of the exhausted by crankcase of internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091111 |