CN103061850A - Crankcase ventilation oil returning structure - Google Patents
Crankcase ventilation oil returning structure Download PDFInfo
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- CN103061850A CN103061850A CN2012105741699A CN201210574169A CN103061850A CN 103061850 A CN103061850 A CN 103061850A CN 2012105741699 A CN2012105741699 A CN 2012105741699A CN 201210574169 A CN201210574169 A CN 201210574169A CN 103061850 A CN103061850 A CN 103061850A
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- oil
- crankcase
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Abstract
A crankcase ventilation oil returning structure comprises a crankcase body. A ventilation oil returning channel is arranged on the crankcase body and comprises a ventilation oil returning channel upper section and a ventilation oil returning channel lower section, a groove is arranged on the inner side of the channel between the upper section and the lower section, and an oil returning hole communicated with a crankcase chamber is arranged in the groove. The crankcase ventilation oil returning structure can ensure that piston blow-by passes through the crankcase channel and can be smoothly led into an oil-gas separation system upward, engine oil passes through the channel and can smoothly return when returns back, atomized engine oil is decreased, burden of the oil-gas separation system is lightened, and engine oil consumption is reduced.
Description
Technical field
The present invention relates to technical field of engines, be specifically related to the engine crank case ventilation oil-returning structure.
Background technique
Along with the development of society, significantly the promoting year by year of automobile pollution, the problems such as the environmental pollution that automobile brings and energy crisis are more and more serious, and discharging and the fuel consume of motor car engine had harsher requirement.In general, the mist of oil that the motor inner engine oil produces can be brought to by the piston gas blowby in the crankcase oil and gas separating system to be separated, if the machine oil oil return is not smooth or improper ventilation, can cause the mist of oil overrich, when the mist of oil of overrich exceeds the load of oil and gas separating system, then have part machine oil and enter combustion chambers burn through intake manifold, bring the excessive and discharging of the serious consumption of lubricating oil problem that exceeds standard.Therefore, smooth ventilation and the unimpeded consumption of lubricating oil to motor of oil return of assurance motor are most important.Generally be designed with the perforation crankcase ventilation drainback passage up and down that is arranged in dual-side on the engine crankshaft box, circulation during engine operation refluxes through these passages with machine oil, simultaneously, the piston gas blowby upwards imports to oil and gas separating system through these passages.When motor during at certain obliquity and attitude, the passage of position towards the top is mainly used in ventilating on the crankcase, also have simultaneously part machine oil by this passage oil return to oil sump.When engine operation, in this passage, machine oil from up to down flows, and the piston gas blowby moves from bottom to top, will strengthen like this fogging degree of machine oil, increases the burden of oil and gas separating system.Therefore, designing a kind of energy and guarantee smoothly ventilation, smooth and easy oil return, reduce machine oil and atomize, alleviate the burden of oil and gas separating system, reduce the crankcase ventilation oil-returning structure of consumption of lubricating oil, is the technical problem that those skilled in the art will solve.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of crankcase ventilation oil-returning structure has been proposed, this crankcase ventilation oil-returning structure can upwards import in the oil and gas separating system in the time of guaranteeing the piston gas blowby through the crankcase passage smoothly, the smooth and easy oil return of energy when machine oil refluxes through passage, reduce the machine oil atomizing, alleviate the burden of oil and gas separating system, reduce consumption of lubricating oil.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of crankcase ventilation oil-returning structure, comprise the crankcase chamber in crankcase body and the crankcase body, be provided with the ventilation drainback passage at described crankcase body, described ventilation drainback passage comprises ventilation drainback passage epimere and ventilation drainback passage hypomere, passage inboard in passage epimere and hypomere joint is provided with groove, has the spill port that communicates with crankcase chamber in this groove.
Further, described spill port is arranged on the lower wall of groove.
Further, described spill port is a plurality of.
Further, the diameter of described spill port is 6mm to 10mm.
Relative above-mentioned background technology, crankcase ventilation oil-returning structure provided by the invention, comprise the crankcase chamber in crankcase body and the crankcase body, be provided with the ventilation drainback passage at described crankcase body, described ventilation drainback passage comprises ventilation drainback passage epimere and ventilation drainback passage hypomere, passage inboard in passage epimere and hypomere joint is provided with groove, has the spill port that communicates with crankcase chamber in this groove.When engine operation, in the ventilation drainback passage, the piston gas blowby moves from bottom to top, upwards import to oil and gas separating system through passage, machine oil from up to down flows, and when machine oil flow to ventilation drainback passage epimere end, namely flow in the groove, be back to crankcase chamber by the spill port in the groove, no longer pass through ventilation drainback passage hypomere, reduced time of contact and the area of machine oil and gas blowby, reduced the fogging degree of machine oil, alleviate the burden of oil and gas separating system, reduce consumption of lubricating oil.
In addition, in the crankcase ventilation drainback passage, groove is set, can reduces crankcase weight, thus reduce fuel oil consumption.
Description of drawings
Fig. 1 is the schematic diagram of crankcase ventilation oil-returning structure of the present invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 2;
Wherein, crankcase body 1, ventilation drainback passage epimere 2, ventilation drainback passage hypomere 3, groove 4, groove upper wall 4-1, recess sidewall 4-2, groove lower wall 4-3, spill port 5.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of crankcase ventilation oil-returning structure, comprise the crankcase chamber in crankcase body 1 and the crankcase body, be provided with the ventilation drainback passage at described crankcase body, described ventilation drainback passage comprises ventilation drainback passage epimere 2 and ventilation drainback passage hypomere 3, passage inboard in passage epimere and hypomere joint is provided with groove 4, has the spill port 5 that communicates with crankcase chamber in this groove.
Referring to Fig. 1, when engine operation, in the ventilation drainback passage, the piston gas blowby moves from bottom to top, upwards import to oil and gas separating system through passage, machine oil from up to down flows, when machine oil flow to ventilation drainback passage epimere 2 end, namely flow in the groove 4, be back to crankcase chamber by the spill port 5 in the groove, no longer pass through ventilation drainback passage hypomere, time of contact and the area of machine oil and gas blowby have been reduced, reduce the fogging degree of machine oil, alleviated the burden of oil and gas separating system, reduced consumption of lubricating oil.
Referring to Fig. 1, Fig. 2, Fig. 3, described groove 4 comprises groove upper wall 4-1, recess sidewall 4-2, groove lower wall 4-3.
Preferably, described spill port is arranged on the lower wall 4-3 of groove, and spill port through-going recess lower wall 4-3 communicates with crankcase chamber.Spill port is arranged on the lower wall 4-3 of groove, can goes out spill port by Drilling operation, be convenient to processing.
Preferably, described spill port 5 can arrange a plurality of.A plurality of spill ports are set accelerate engine oil flow speed, flow into quickly crankcase chamber.
Preferably, the diameter of described spill port is 6mm to 10mm.The spill port diameter is too small, is difficult to processing, and manufacture cost is high, and the spill port diameter is excessive, will affect the intensity of crankcase.
Claims (4)
1. crankcase ventilation oil-returning structure, comprise the crankcase chamber in crankcase body (1) and the crankcase body (1), be provided with the ventilation drainback passage at described crankcase body, it is characterized in that, described ventilation drainback passage comprises ventilation drainback passage epimere (2) and ventilation drainback passage hypomere (3), be provided with groove (4) in the passage inboard of passage epimere and hypomere joint, have the spill port (5) that communicates with crankcase chamber in this groove.
2. crankcase ventilation oil-returning structure according to claim 1 is characterized in that, described spill port (5) is arranged on the lower wall (4-3) of groove.
3. crankcase ventilation oil-returning structure according to claim 1 and 2 is characterized in that, described spill port (5) is a plurality of.
4. crankcase ventilation oil-returning structure according to claim 1 and 2 is characterized in that, the diameter of described spill port (5) is 6mm to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105741699A CN103061850A (en) | 2012-12-26 | 2012-12-26 | Crankcase ventilation oil returning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105741699A CN103061850A (en) | 2012-12-26 | 2012-12-26 | Crankcase ventilation oil returning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103061850A true CN103061850A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105741699A Pending CN103061850A (en) | 2012-12-26 | 2012-12-26 | Crankcase ventilation oil returning structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103061850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397260A (en) * | 2017-02-07 | 2018-08-14 | 福特环球技术公司 | Engine shell body component |
| CN108678835A (en) * | 2018-03-29 | 2018-10-19 | 潍柴动力股份有限公司 | Gs-oil separator takes depressed structure and engine |
| CN113565643A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Engine structure, automobile and method for improving fuel dilution rate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10252474A1 (en) * | 2002-11-12 | 2004-06-09 | Volkswagen Ag | Combustion engine especially Diesel motor for motor vehicle has wall oil separator arranged between exhaust gas turbo charger and entry to intake pipe in a charge pipe |
| CN101021173A (en) * | 2007-03-12 | 2007-08-22 | 力帆实业(集团)有限公司 | Universal vertical shaft petrol engine |
| CN101270683A (en) * | 2007-10-30 | 2008-09-24 | 重庆长安汽车股份有限公司 | Gas oil separation structure of internal combustion engine crankcase ventilation system |
| CN201125795Y (en) * | 2007-12-20 | 2008-10-01 | 沈阳新光华晨汽车发动机有限公司 | Cylinder of diesel engine |
| CN202510187U (en) * | 2012-02-27 | 2012-10-31 | 长城汽车股份有限公司 | Self-sealed oil return structure of blow-by oil and gas separation system of engine crank case |
| CN202520397U (en) * | 2012-04-24 | 2012-11-07 | 苏州市双马机电有限公司 | Oil and fog separating device of waste gas of engine |
-
2012
- 2012-12-26 CN CN2012105741699A patent/CN103061850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10252474A1 (en) * | 2002-11-12 | 2004-06-09 | Volkswagen Ag | Combustion engine especially Diesel motor for motor vehicle has wall oil separator arranged between exhaust gas turbo charger and entry to intake pipe in a charge pipe |
| CN101021173A (en) * | 2007-03-12 | 2007-08-22 | 力帆实业(集团)有限公司 | Universal vertical shaft petrol engine |
| CN101270683A (en) * | 2007-10-30 | 2008-09-24 | 重庆长安汽车股份有限公司 | Gas oil separation structure of internal combustion engine crankcase ventilation system |
| CN201125795Y (en) * | 2007-12-20 | 2008-10-01 | 沈阳新光华晨汽车发动机有限公司 | Cylinder of diesel engine |
| CN202510187U (en) * | 2012-02-27 | 2012-10-31 | 长城汽车股份有限公司 | Self-sealed oil return structure of blow-by oil and gas separation system of engine crank case |
| CN202520397U (en) * | 2012-04-24 | 2012-11-07 | 苏州市双马机电有限公司 | Oil and fog separating device of waste gas of engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397260A (en) * | 2017-02-07 | 2018-08-14 | 福特环球技术公司 | Engine shell body component |
| CN108397260B (en) * | 2017-02-07 | 2022-01-21 | 福特环球技术公司 | Engine casing component |
| CN108678835A (en) * | 2018-03-29 | 2018-10-19 | 潍柴动力股份有限公司 | Gs-oil separator takes depressed structure and engine |
| CN113565643A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Engine structure, automobile and method for improving fuel dilution rate |
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Application publication date: 20130424 |
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| RJ01 | Rejection of invention patent application after publication |