CN102235204A - Oil-gas separation device for engine - Google Patents
Oil-gas separation device for engine Download PDFInfo
- Publication number
- CN102235204A CN102235204A CN2010101613847A CN201010161384A CN102235204A CN 102235204 A CN102235204 A CN 102235204A CN 2010101613847 A CN2010101613847 A CN 2010101613847A CN 201010161384 A CN201010161384 A CN 201010161384A CN 102235204 A CN102235204 A CN 102235204A
- Authority
- CN
- China
- Prior art keywords
- hole
- oil
- gear
- engine
- separating device
- 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.)
- Granted
Links
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an oil-gas separation device for an engine. The oil-gas device comprises a gear arranged in the engine, wherein a gear shaft on the gear is closely matched with a supporting bush; the supporting bush is installed in an engine gear chamber; the gear is meshed with other gears of the engine; the gear is provided with a first through hole in radial direction; the gear shaft is axially provided with a third through hole; the third through hole is communicated with the third through hole; and the third through hole is communicated with the external part of the engine via a path. In the oil-gas separation device for an engine, the linear speed of rotation of leak gas of a piston in the first through hole is higher because the gear rotates at a high speed when the gear operates, thereby achieving high oil-gas separation effect and high separation efficiency, The oil-gas separation device for an engine has the advantages of simple structure and lower cost.
Description
Technical field
The present invention relates to a kind of dynamic power machine, relate in particular to a kind of oil-gas separating device of engine.
Background technique
In the engine operation process, the waste gas that fuel oil produces after the internal combustion of firing chamber has the seal clearance of sub-fraction by piston ring and leaks into oil sump, and we are called blow-by of piston this part waste gas.Because the influence such as splash of the high temperature of engine interior, machine oil, the machine oil of engine interior inevitably can produce machine oil steam, the blow-by of piston of motor can be taken away the machine oil steam of these atomizings, thereby cause the increase of engine motor oil consumption in the process of discharging motor.For reducing the oil consumption of motor, must reduce contained machine oil steam in the engine piston gas leakage by setting device.
Modern motor all has special system to finish to filter out the function of machine oil steam contained in the blow-by of piston, claims that generally this cover system is the respiratory system of motor.Typical motor respiratory system generally is made up of filter mesh layer, cooling labyrinth and cyclone type oil air separation.Filter mesh layer and cooling labyrinth generally are arranged in the cylinder head cover top of motor, and cyclone type oil air separation and regulator generally are arranged in external engine.The blow-by of piston that contains organic oil steam is at first by filter mesh layer (being generally sponge or steel wire group), and part machine oil steam can be back to oil sump in the filter mesh layer deposition.Blow-by of piston by filter mesh layer is by the cooling labyrinth time, because the labyrinth contacts with external environment condition near the cylinder head cover top, temperature is lower, so part machine oil steam can condense, the oil return apparatus by the labyrinth is back to oil sump.Can enter the cyclone type oil air separation of jar type through the blow-by of piston behind the double-filtration; this device is the major part of contained machine oil in the thorough isolation piston gas leakage; the blow-by of piston that enters this device can be along the wall rotation of this device; in rotary course; because centrifugal action, heavier machine oil particle can be separated.
For the cyclone type oil air separation, the air-flow that enters this device is fast more, and the effect of centrifugation is just good more, and the machine oil of separating is just many more.Because the piston air leakage of motor is all fixed substantially with respect to each engine operating condition, thus the outlet of the resuscitation apparatus on the cylinder head cover (also being the inlet of cyclone separator simultaneously) do more little, the exit velocity of blow-by of piston is just big more.But this resuscitation apparatus outlet can not be too small, and the too small resistance to flow output that then increases respiratory system causes engine interior pressure to become big, can produce the forward and backward oil sealing sealing of bent axle and lose efficacy, and the machine oil anti-channeling is gone into problems such as combustion chambers burn.The actual motor resuscitation apparatus exit velocity that uses is generally between 2～5 meter per seconds.
Prior art scenario-frame complexity, the cost height, and because the flow velocity little (being generally 2～5 meter per seconds) of engine piston gas leakage outlet, the effect of cyclone type oil-gas separator is not fine.Much installed and also have more machine oil steam not separate in the engine piston gas leakage of this system to be back to oil sump, it is high to cause the user feedback engine motor oil to consume.
Summary of the invention
The objective of the invention is to, a kind of oil-gas separating device of engine is provided, the separation effect height, simple in structure and cost is lower.
For achieving the above object, according to an aspect of the present invention, a kind of oil-gas separating device of engine is provided, comprise: the gear of being located at engine interior, gear shaft on the described gear closely cooperates with the supporting bearing shell, it is indoor that described supporting bearing shell is installed on engine gear, other gear engagement of described gear and motor; Described gear radially is provided with first through hole, its gear shaft be axially arranged with third through-hole, described first through hole is connected with described third through-hole; Described third through-hole is communicated with external engine by passage.
Oil-gas separating device of engine of the present invention, its gear is high speed rotating under the drive of other gears of motor, the blow-by of piston that motor produces enters first through hole on the gear, under the action of the centrifugal, the machine oil particle is separated, therefore, the gas in the blow-by of piston just is discharged to by passage from third through-hole and starts the outside, reaches the purpose of Oil-gas Separation.Oil-gas separating device of engine of the present invention, because gear rotational speed when work is fast, the linear velocity that blow-by of piston rotates in first through hole is higher, oil gas separation is better, the separation effect height.And oil-gas separating device of engine of the present invention is simple in structure, and cost is lower.
Description of drawings
Fig. 1 is the example structure schematic representation of oil-gas separating device of engine of the present invention;
Fig. 2 is embodiment's sectional view of oil-gas separating device of engine middle gear of the present invention;
Fig. 3 is another embodiment's sectional view of oil-gas separating device of engine middle gear of the present invention;
The 10-gear; 11-first through hole; 12-second through hole; The 13-third through-hole; The 14-gear shaft; 20-supports bearing shell; The 30-passage.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, oil-gas separating device of engine embodiment of the present invention comprises:
Be located at the gear 10 of engine interior, the gear shaft 14 on the gear 10 closely cooperates with supporting bearing shell 20, and it is indoor that supporting bearing shell 20 is installed on engine gear, gear 10 and other gear engagement of motor;
The radially ecto-entad of gear 10 is drilled with first through hole 11, and its gear shaft 14 is axially arranged with third through-hole 13, the first through holes 11 and is connected with third through-hole 13; Third through-hole 13 is communicated with external engine by passage 30.
During engine running, the gear 10 of present embodiment oil-gas separating device of engine is by other gear driven rotation, the blow-by of piston that motor produces enters first through hole 11, the gear driven that is rotated also begins rotation, owing to centrifugal action, the machine oil particle that quality is bigger will be separated in rotary course.Gas in the blow-by of piston just is discharged to by passage from third through-hole 13 and starts the outside, reaches the purpose of Oil-gas Separation.Because the rotating speed of motor is generally all than higher (general 2000 commentaries on classics of commercial car calibration point rotating speed, passenger car engine calibration point generally changes greater than 4000), the linear velocity height that blow-by of piston rotates in first through hole 11, generally all can surpass 10 meter per seconds, therefore can reach extraordinary oil gas separation, separation effect height easily.And the oil-gas separating device of engine of present embodiment is simple in structure, and arrangement convenience and cost are lower.
Preferably, the present embodiment oil-gas separating device of engine also comprises: second through hole 12, between first through hole 11 and third through-hole 13, first through hole 11 is communicated with third through-hole 13 by second through hole 12, and the cross-section area of second through hole 12 is less than the cross-section area of described first through hole.
More preferably, as shown in Figures 2 and 3, second through hole 12 and first through hole 11 have a side at least on same straight line.
After arriving second through hole through the blow-by of piston of first through hole 11, because aisle spare reduces suddenly, the strain of flow velocity phase is big, can become on the column type inner chamber that high velocity air flows into third through-hole 13 and along inner chamber wall high speed rotating, in rotary course because centrifugal action, again can cutting out partial machine oil particle.Through after such twice Oil-gas Separation, oil gas separation is better, and the content of blow-by of piston machine oil particle still less.
In addition, as shown in Figures 2 and 3, in the present embodiment, can also on gear 10, evenly be provided with a plurality of first through holes 11 and second through hole 12, be communicated with respectively at third through-hole.Like this, speed the velocity of liquid assets of blow-by of piston, reduce the channel resistance of blow-by of piston, thereby reduce the internal pressure (crankcase pressure) of motor.The number of first through hole and second through hole can be provided with according to actual needs on the gear 10, but the setting of through hole can not influence the transmission of other gear mesh oil-gas separating device of engine of motor.
In order to reach better effect, can also in third through-hole, be provided with parts such as flinger ring and/or oil cleaner screen, blow-by of piston is further filtered in third through-hole.
Described gear is injection molded, and cost is lower, and weight is lighter, is fit to require strict especially car to use with motor to weight.
It should be noted that: above embodiment is only unrestricted in order to explanation the present invention, and the present invention also is not limited in above-mentioned giving an example, and all do not break away from the technological scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.
Claims (6)
1. oil-gas separating device of engine, it is characterized in that, comprising: be located at the gear of engine interior, the gear shaft on the described gear closely cooperates with the supporting bearing shell, it is indoor that described supporting bearing shell is installed on engine gear, other gear engagement of described gear and motor;
Described gear radially is provided with first through hole, its gear shaft be axially arranged with third through-hole, described first through hole is connected with described third through-hole; Described third through-hole is communicated with external engine by passage.
2. oil-gas separating device of engine according to claim 1, it is characterized in that, also comprise second through hole, between described first through hole and third through-hole, described first through hole is communicated with described third through-hole by described second through hole, and the cross-section area of described second through hole is less than the cross-section area of described first through hole.
3. oil-gas separating device of engine according to claim 2 is characterized in that, described second through hole and first through hole have a side at least on same straight line.
4. oil-gas separating device of engine according to claim 2 is characterized in that, evenly is provided with a plurality of first through holes and second through hole on the described gear, is communicated with described third through-hole respectively.
5. oil-gas separating device of engine according to claim 1 is characterized in that, is provided with flinger ring and/or oil cleaner screen in the described third through-hole.
6. oil-gas separating device of engine according to claim 1 is characterized in that, described gear is injection molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010161384 CN102235204B (en) | 2010-04-29 | 2010-04-29 | Oil-gas separation device for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010161384 CN102235204B (en) | 2010-04-29 | 2010-04-29 | Oil-gas separation device for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102235204A true CN102235204A (en) | 2011-11-09 |
| CN102235204B CN102235204B (en) | 2013-04-03 |
Family
ID=44886247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010161384 Active CN102235204B (en) | 2010-04-29 | 2010-04-29 | Oil-gas separation device for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102235204B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840007A (en) * | 2012-08-29 | 2012-12-26 | 东风汽车有限公司 | Crankcase ventilation system |
| CN103291415A (en) * | 2013-06-25 | 2013-09-11 | 中国南方航空工业(集团)有限公司 | Oil-gas separation gear and engine provided with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4237128A1 (en) * | 1992-11-03 | 1994-01-27 | Bayerische Motoren Werke Ag | Crankcase vent with centrifuge for oil sepn. - has peripheral centrifugal inlets for blow-by gases |
| JPH08246839A (en) * | 1995-03-09 | 1996-09-24 | Honda Motor Co Ltd | Crankcase ventilating passage |
| CN201301744Y (en) * | 2008-11-19 | 2009-09-02 | 中国第一汽车集团公司 | Oil-gas separator structure |
| CN201661336U (en) * | 2010-04-29 | 2010-12-01 | 广西玉柴机器股份有限公司 | Oil-gas separation device of engine |
-
2010
- 2010-04-29 CN CN 201010161384 patent/CN102235204B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4237128A1 (en) * | 1992-11-03 | 1994-01-27 | Bayerische Motoren Werke Ag | Crankcase vent with centrifuge for oil sepn. - has peripheral centrifugal inlets for blow-by gases |
| JPH08246839A (en) * | 1995-03-09 | 1996-09-24 | Honda Motor Co Ltd | Crankcase ventilating passage |
| CN201301744Y (en) * | 2008-11-19 | 2009-09-02 | 中国第一汽车集团公司 | Oil-gas separator structure |
| CN201661336U (en) * | 2010-04-29 | 2010-12-01 | 广西玉柴机器股份有限公司 | Oil-gas separation device of engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840007A (en) * | 2012-08-29 | 2012-12-26 | 东风汽车有限公司 | Crankcase ventilation system |
| CN102840007B (en) * | 2012-08-29 | 2014-11-26 | 东风汽车公司 | Crankcase ventilation system |
| CN103291415A (en) * | 2013-06-25 | 2013-09-11 | 中国南方航空工业(集团)有限公司 | Oil-gas separation gear and engine provided with same |
| CN103291415B (en) * | 2013-06-25 | 2015-08-19 | 中国南方航空工业(集团)有限公司 | Oil-gas Separation gear and there is the motor of this Oil-gas Separation gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102235204B (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102821866B (en) | Centrifugal separator | |
| US6152120A (en) | Diesel engine system with oil-air separator and method of operation | |
| CN101549331B (en) | Composite oil gas separation method and composite oil gas separator | |
| CA2560633C (en) | Air/oil separation system and method | |
| CA2809985C (en) | Deoiler seal | |
| EP2912282A1 (en) | Oil system bearing compartment architecture | |
| US10967388B2 (en) | Centrifugal separator having a liquid outlet chamber with a rotating member | |
| US10253692B2 (en) | Aircraft engine having a device for separating oil | |
| CN102057164B (en) | Turbo blower and high speed rotating body used in same | |
| CN106224056A (en) | A kind of gs-oil separator assembly and internal combustion engine | |
| JP2015519195A (en) | Centrifuge | |
| CN201661336U (en) | Oil-gas separation device of engine | |
| CN201526354U (en) | Crankcase ventilation system for an engine and an engine | |
| CN102235204B (en) | Oil-gas separation device for engine | |
| CN202300694U (en) | Waste gas separation structure in crank shaft box body | |
| CN107842411A (en) | Engine and its oil-gas separating device for engine | |
| CN103615296A (en) | Intake manifold integrating oil-gas separation device with PCV, engine and automobile | |
| US20180036664A1 (en) | Device of a turbomachine for separating oil from an air-oil volume flow | |
| CN217108167U (en) | Oil sealing structure of gear box | |
| CN201963396U (en) | Four-stroke internal combustion engine for handheld tool | |
| CN207538893U (en) | Engine and its oil-gas separating device for engine | |
| CN203783874U (en) | Radial plunger pump | |
| EP2538037B1 (en) | Engine bearing compartment | |
| CN111237080A (en) | Engine and all-terrain vehicle | |
| CN215761857U (en) | Active oil-gas separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |