CN1782335B - oil separating structure and internal combustion engine - Google Patents
oil separating structure and internal combustion engine Download PDFInfo
- Publication number
- CN1782335B CN1782335B CN2005101285377A CN200510128537A CN1782335B CN 1782335 B CN1782335 B CN 1782335B CN 2005101285377 A CN2005101285377 A CN 2005101285377A CN 200510128537 A CN200510128537 A CN 200510128537A CN 1782335 B CN1782335 B CN 1782335B
- Authority
- CN
- China
- Prior art keywords
- oil
- piston ring
- gas leakage
- filter
- ring gas
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
To reduce the frequency of maintenance by improving the separability of oil from a filter to prevent the filter from being clogged in an oil separating structure for separating oil mist from blow-by gas flowing from a crankcase. This oil separating structure comprises the filter 4 for separating the oil and is so formed that the blow-by gas is passed therethrough from the upper side to the lower side. In other words, the oil separating structure is so formed that the blow-by gas led into the filter 4 leaves the lower surface of the filter 4 and the direction of the blow-by gas passed from the lower surface roughly matches the direction of the gravity. The oil separating structure is so formed that the blow-by gas leaving the lower surface of the filter 4 is returned to the suction side, and the oil captured by the filter 4 is dripped from the lower surface of the filter 4 and then returned to the crankcase.
Description
Technical field
The present invention relates to be used for isolating the oil separating structure of mist of oil, also relate to internal-combustion engine with this oil separating structure from the piston ring gas leakage that motor produces.
Background technique
After motor starts, have unburned gas (piston ring gas leakage usually; BBG) from the gap of cylinder block and piston or piston ring etc. make micro-ly and be leaked in the crankcase.After discharge on this piston ring gas leakage former state ground, can strengthen the load of environment, also, it can cause engine interior to corrode and oily deterioration in motor because being stranded in, for this reason, the system (Positive Crank-case Ventilation (PCV) system) that has proposed to make the piston ring gas leakage return inlet manifold in the past and burn.
In said structure, the piston ring gas leakage is generally delivered to inlet manifold from crankcase through PCV path etc.But, from the piston ring gas leakage that crankcase is supplied with, contain many elaioleucites (mist of oil) owing to have many oil droplets to disperse in the inside of crankcase (crankshaft room).The piston ring gas leakage former state of this state deliver in the inlet manifold after, can strengthen oil consumption, simultaneously the oil HC that can increase after the recirculation in air-breathing in the waste gas measures.In addition, when the mist of oil in this piston ring gas leakage (or the particle in the products of combustion of oil) is attached on the valve system etc., will has sediments and pile up.
Therefore, the segregating unit that contained mist of oil is separated before delivering to suction side in the piston ring gas leakage has been proposed in Patent Document 1.In Patent Document 1, for there being the space in the round-ended cylinder shape casing radially divided, be provided with fibrous sorbing material cylindraceous, the piston ring gas leakage that gas inflow entrance above casing imports sorbing material inside radially passes sorbing material laterally from the inboard, the relief opening of slave shell-side face is discharged.At this moment, mist of oil is adsorbed material absorption, and the oil that is oozed out by sorbing material just returns in the crankcase from the oil drain out of inferior surface of machine case.
[Patent Document 1] spy open the 2002-242645 communique (segment number 0011,0012, Fig. 1)
But in the structure of above-mentioned Patent Document 1, the mist of oil that is captured by fibrous sorbing material easily drops because of its deadweight and lodges in downside.In other words, because oil is partial to below one side of sorbing material, the piston ring gas leakage is the sorbing material upside by the little part of resistance only just.As a result, in oil mist trapping, just can not effectively utilize the whole zone of sorbing material, the capture performance of mist of oil is reduced, increase pressure loss.
In addition, because the oil in the fibrous sorbing material is partial to, mesh is stopped up.For this problem, disclose the replaceable structure that comprises the filtrating equipment of sorbing material in the Patent Document 1, but, need change filter repeatedly because above-mentioned mesh obstruction takes place easily, increased the man-hour of maintenance.
Moreover the structure of above-mentioned Patent Document 1 easily increases volume because being shaped as of filter is cylindric, is difficult to compactness.
Summary of the invention
The problem that quasi-solution of the present invention is determined the following describes the device and the effect thereof of head it off as above-mentioned.
According to first viewpoint of the present invention, a kind of oil separating structure of piston ring gas leakage is provided, have the filter element that is used for separating oil, piston ring gas leakage from top to down is by this filter element.
According to said structure, because piston ring gas leakage from top to down is passed through in filter element, oil that capture, in filter element borrows deadweight to fall down from the piston ring gas leakage, can oil be forced into downside by flowing of piston ring gas leakage simultaneously.So the oil-break of filter element is extremely good, reduces even eliminated maintenance man hours (need not maintain).In addition, owing to be to make the structure of piston ring gas leakage from top to down by filter element, so for example can be simply rectangular-shaped the shape of filter element formation, and easily make the oil separating structure compactness.
In the oil separating structure of above-mentioned piston ring gas leakage, preferably above-mentioned filter element constitutes the consistent basically shape of thickness of above-below direction.
Like this, but just homogenization of the resistance of piston ring gas leakage when the filter element can allow the whole zone of piston ring gas leakage by filter element.So pressure loss can be not excessive, can reduce the mesh obstruction and can stably capture mist of oil.
According to second viewpoint of the present invention, a kind of oil separating structure of piston ring gas leakage is provided, the mixed gas that importing is used for the filter element inside of separating oil passes from the lower surface of this filter element, and the direction of passing from this lower surface and the direction basically identical of gravity.
Like this, from the piston ring gas leakage, trap and store and to be forced into downside by flowing of piston ring gas leakage from this lower surface in the oil in filter element of lower face side and to discharge.So filter element can have very good oil-break, maintenance man hours is reduced or be zero (need not maintain).
In the oil separating structure of above-mentioned piston ring gas leakage, preferably take off and state structure, promptly constitute the piston ring gas leakage and pass from the lower surface of above-mentioned filter element and turn back to suction side.The oil that is captured by above-mentioned filter element is the oil droplet shape from the lower surface of this filter element, then the return engine crankcase.
According to said structure,, in the piston ring gas leakage of having removed mist of oil by filter element, do not have this oil and sneak into, so can avoid the piston ring gas leakage that oil is taken out of again because the oil that passes from filter element becomes big oil droplet whereabouts.In addition, can be also used as the path of oil and the path of piston ring gas leakage to the following side space of filter element, owing to need not separate the special structure of these two paths, so can realize succinct, compact oil separating structure.
In the oil separating structure of above-mentioned piston ring gas leakage, preferably can be used for gas-fired heat pump with motor.
Specifically, above-mentioned oil separating structure has reduced filter element owing to oil-break is functional mesh stops up, and even and since the frequency of maintenance few be zero (need not maintain), but be particularly suitable for imagining the gas-fired heat pump of long time continuous working with in the motor.
According to the 3rd viewpoint of the present invention, a kind of interior combustion gas is provided, have above-mentioned oil separating structure, above-mentioned filter element is built in the body of the internal-combustion engine simultaneously.
Can realize the motor of the compactness that conditioning is little, deposition problems is also few thus.
Description of drawings
Fig. 1 is the mode sectional drawing of the oil separating structure of an embodiment of the present invention.
Embodiment
Below, with reference to Fig. 1 embodiments of the present invention are described.Fig. 1 is the mode sectional drawing of the oil separating structure of an embodiment of the present invention.
This oil separating structure 1 has case 2, and its upper surface is provided with gas access 3.Import within the case 2 via bright pipe arrangement not shown in the figures from this gas access 3 from the piston ring gas leakage in the crankshaft room of the motor of engine-driving heat pump system.
For making separating up and down of space in the case 2, be supported within the case 2 by filter 4 as filter element.Filter 4 is that the filtering material of the predetermined thickness (several millimeters～tens of millimeters) that is made of nonwovens is longitudinally stacked, constitutes roughly rectangular-shaped.Filter 4 size in the horizontal direction is bigger slightly than the inner space of case 2, filter 4 can be embedded within the case 2, makes thus to fit tightly between the inwall of the edge of filter 4 and case 2 and seal, and does not allow the piston ring gas leakage by between filter and the inwall.
The lower surface of above-mentioned case 2 is provided with oil drain out 5, and the oil that is separated by above-mentioned filter 4 is just from the crankcase of these oil drain out 5 return engines.
Below above-mentioned filter 4, be provided with relief opening 6 in the side of case 2, be transported to the suction side of motor from the piston ring gas leakage of these relief opening 6 discharges.
Under said structure, the piston ring gas leakage that is mixed with mist of oil 3 imports within the casees 2 from the gas access via not shown pipe arrangement from crankcase shown in the arrow of band hachure among Fig. 1, enters inside by the upper surface of filter 4.Then, along with piston ring gas leakage from top to down in filter 4 flows, wherein contained mist of oil is just captured by filter 4.The piston ring gas leakage of having removed mist of oil passes from the lower surface of filter 4 shown in hollow arrow, turns back to the suction side of motor via relief opening 6.
On the other hand, the mist of oil that filter 4 captures is then borrowed and is descended from the inside that overweights filter 4, and the piston ring gas leakage in the filter 4 mobile helps this decline.So oil declines of just (can saying so forcibly) smoothly along the inside of filter 4, and easy lower surface from filter 4 passes.Oil forms oil droplet from the lower surface of filter 4 drippage, returns in the crankcase via not shown pipe arrangement from oil drain out 5 after falling the bottom surface of case 2.
As implied above, the oil separating structure of present embodiment has the filter 4 that is used for separating oil, and piston ring gas leakage from top to down in this filter 4 passes through.
Therefore, though the oil that captures by piston ring gas leakage importing filter 4 moves down this mobile top-down mobile support of piston ring gas leakage that then is subjected in the filter 4 because of deadweight.Therefore,, can oil effectively be discharged, can make filter 4 oil-break well from filter 4 because the piston ring gas leakage is forced into the below with oil.
In the oil separating structure of present embodiment, the piston ring gas leakage that imports filter 4 passes from the lower surface of filter 4, and the piston ring gas leakage direction of passing from the lower surface of filter 4 and the direction basically identical of gravity.
Therefore, import the oil that filter 4 traps by the piston ring gas leakage, passed and (top-down flowing) pushing of flowing that forms from the lower surface of filter 4 by the piston ring gas leakage, combine with the deadweight of oil itself and easily discharge from the lower surface of filter 4.The result can discharge oil from filter 4 energetically, and filter 4 oil-break well.
In the oil separating structure of present embodiment, the piston ring gas leakage that passes from the lower surface of filter 4 turns back to suction side from relief opening 6, on the other hand, the oil that is captured by filter 4 then is the oil droplet shape from the lower surface of this filter 4, returns crankcase from oil drain out 5 then.
Under said structure, the oil that passes from filter 4 becomes that significantly the lower surface from filter 4 falls greater than the oil droplet of mist of oil grain.So the flow of piston ring gas leakage is so long as not greatly, this oil has been removed in the piston ring gas leakage of mist of oil with regard to not sneaking into by filter 4.The result can prevent that oil from sneaking into from the piston ring gas leakage that relief opening 6 is discharged (in other words, can avoid piston ring gas leakage entrained oil again).In addition and since can with the space of filter element below as the part of oily path and as the part of piston ring gas leakage path the two, thereby can simplify oil separating structure 1, also easily make its compactness.
Have, in the oil separating structure of present embodiment, filter 4 constitutes the shape of the thickness basically identical of its above-below direction again.Like this, because the piston ring gas leakage passes through the resistance homogenization of filter 4, thereby this piston ring gas leakage just can flow through the whole zone of filter 4 equably.So pressure loss can be not excessive, even and if in the working long hours of motor, can reduce mesh yet and stop up, stably capture mist of oil.
Above although understand embodiments of the present invention, but can do following change to above-mentioned mode of execution.
(1) though the present embodiment illustration be used for gas-fired heat pump with the oil separating structure of motor, oil separating structure of the present invention is not limited to gas-fired heat pump with the situation in the motor.Be oil separating structure of the present invention because oil-break is good, the mesh of filter stops up few, and the maintenance frequency is few or need not maintain, and does in the motor that gas-fired heat pump that long-time continuous turns round uses so be specially adapted to set.
(2) present embodiment is the oil separating structure as outer attached type as shown in Figure 1, but obviously also above-mentioned wave filter 4 can be built in the engine main body, and as the oil separating structure of engine embedded type.As concrete structure, for example can constitute, filter 4 is located within the skull, connect the interior space of crankcase and the inner space (superjacent air space of filter 4) of skull, piston ring gas leakage by filter 4 is imported suction side, also can consider in addition to make to drop to oil in the rocker arm chamber from filter 4 and turn back to structure in the crankcase.Can realize the space-efficient compact structure in this case.Have again, can form filter 4 with the shape (for example rectangular-shaped) of simple compactness among the present invention, thereby easily oil separating structure is located in the motor.
When adopting this engine embedded type, also (for example the spy opens shown in the flat 7-269326 communique with regard to not needing the sort of structure that is used to solve the problem that produces when oil separating structure is arranged at external engine, condensed water takes place when preventing cold and heater is set, or open shown in the 2002-266621 communique as the spy, for the tightness of the casing that improves oil separating structure and adopt integrally formed resin casing).In addition, in internally-arranged type, the maintenance of filter 4 acquires a certain degree of difficulty, but in the present invention, as mentioned above, the replacing frequency of filter 4 is few, so do not have this class problem.
(3) gas access 3 is not limited to be located at the upper surface of case 2, so long as at the upside of filter 4, also can be located at the side of case 2.Equally, also can adopt the structure of oil drain out 5 not being located at case 2 bottom surfaces and being located at the bottom, side.
Claims (9)
1. the oil separating structure of piston ring gas leakage is characterized in that, has:
Case, so that the space mode of separating up and down in this case supports, is used for the filter element of separating oil, and the relief opening that is formed on the side of case of this filter element below, links to each other with the suction side of motor,
The piston ring gas leakage by behind the above-mentioned filter element, turns back to suction side via above-mentioned relief opening at from top to down.
2. the oil separating structure of the described piston ring gas leakage of claim 1 is characterized in that: above-mentioned filter element constitutes the consistent basically shape of above-below direction thickness.
3. the oil separating structure of piston ring gas leakage is characterized in that, has:
Case, so that the space mode of separating up and down in this case supports, is used for the filter element of separating oil, and the relief opening that is formed on the side of case of this filter element below, links to each other with the suction side of motor,
The piston ring gas leakage of inside that has passed through this filter element, returns to this suction side by this relief opening after pass with the direction of the direction basically identical of gravity from the lower surface of this filter element.
4. the oil separating structure of each described piston ring gas leakage in the claim 1～3 is characterized in that: be formed with the gas access on the upper surface of above-mentioned case.
5. the oil separating structure of each described piston ring gas leakage in the claim 1～3 is characterized in that: be used for the gas-fired heat pump motor.
6. the oil separating structure of the described piston ring gas leakage of claim 4 is characterized in that: be used for the gas-fired heat pump motor.
7. internal-combustion engine is characterized in that: have the oil separating structure of each described piston ring gas leakage in the claim 1～6, above-mentioned filter element is built in the engine main body simultaneously.
8. internal-combustion engine, it is characterized in that: the oil separating structure of each described piston ring gas leakage invests on the engine main body outward in the claim 1～6.
9. oil separating structure, it is characterized in that: each described filter element is rectangular-shaped in the claim 1～8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004343322A JP2006152890A (en) | 2004-11-29 | 2004-11-29 | Oil separating structure and internal combustion engine |
| JP343322/04 | 2004-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1782335A CN1782335A (en) | 2006-06-07 |
| CN1782335B true CN1782335B (en) | 2011-12-14 |
Family
ID=36631478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101285377A Expired - Fee Related CN1782335B (en) | 2004-11-29 | 2005-11-28 | oil separating structure and internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006152890A (en) |
| KR (1) | KR100748419B1 (en) |
| CN (1) | CN1782335B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006152890A (en) * | 2004-11-29 | 2006-06-15 | Toyota Industries Corp | Oil separating structure and internal combustion engine |
| JP5000419B2 (en) * | 2006-08-16 | 2012-08-15 | 富士重工業株式会社 | Engine breather equipment |
| KR100783887B1 (en) * | 2006-11-21 | 2007-12-10 | 현대자동차주식회사 | Oil separating for measuring blow-out oil |
| US7980233B2 (en) | 2008-04-29 | 2011-07-19 | Cummins Filtration Ip, Inc. | Crankcase filtration assembly with additive for treating condensate material |
| US8245498B2 (en) | 2008-06-20 | 2012-08-21 | Cummins Filtration Ip, Inc. | Apparatus and method to control engine crankcase emissions |
| CN102226419A (en) * | 2011-05-25 | 2011-10-26 | 中国兵器工业集团第七○研究所 | Efficient oil-gas separation device of engine |
| CN102359406A (en) * | 2011-10-31 | 2012-02-22 | 绿田机械股份有限公司 | Environment-friendly power gasoline engine |
| DE102011120782A1 (en) * | 2011-12-09 | 2013-06-13 | Volkswagen Aktiengesellschaft | Internal combustion engine and method for operating an internal combustion engine |
| CN102635423B (en) * | 2012-05-06 | 2016-06-29 | 中国兵器工业集团第七0研究所 | A kind of respiratory organ |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290738B1 (en) * | 1999-07-16 | 2001-09-18 | Nelson Industries, Inc. | Inertial gas-liquid separator having an inertial collector spaced from a nozzle structure |
| CN1382899A (en) * | 2001-03-13 | 2002-12-04 | 三菱重工业株式会社 | Oil separator |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62190817U (en) * | 1986-05-27 | 1987-12-04 | ||
| JPH0610109Y2 (en) * | 1987-12-25 | 1994-03-16 | 株式会社クボタ | Engine blow-by gas combustion chamber reduction device |
| US5277154A (en) * | 1992-09-21 | 1994-01-11 | Mcdowell Alex R | Oil/air separator and method thereof |
| GB2302135A (en) * | 1995-06-09 | 1997-01-08 | Perkins Ltd | Cooling and oil separation for engine blow-by gases |
| KR19980027851U (en) * | 1996-11-19 | 1998-08-05 | 김영귀 | Blow-by-gas reduction device for automobile |
| KR100398525B1 (en) * | 2000-12-09 | 2003-09-19 | 현대자동차주식회사 | Device to prevent tilting oil in oil pan for vehicle |
| KR100394614B1 (en) * | 2000-12-30 | 2003-08-14 | 기아자동차주식회사 | Apparatus for separating oil |
| JP2002242645A (en) * | 2001-02-20 | 2002-08-28 | Sanyo Electric Co Ltd | Oil separator |
| DE10150713A1 (en) * | 2001-10-13 | 2003-04-24 | Bosch Gmbh Robert | agglomerating means |
| JP2006152890A (en) * | 2004-11-29 | 2006-06-15 | Toyota Industries Corp | Oil separating structure and internal combustion engine |
-
2004
- 2004-11-29 JP JP2004343322A patent/JP2006152890A/en active Pending
-
2005
- 2005-08-23 KR KR1020050077360A patent/KR100748419B1/en active IP Right Grant
- 2005-11-28 CN CN2005101285377A patent/CN1782335B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290738B1 (en) * | 1999-07-16 | 2001-09-18 | Nelson Industries, Inc. | Inertial gas-liquid separator having an inertial collector spaced from a nozzle structure |
| CN1382899A (en) * | 2001-03-13 | 2002-12-04 | 三菱重工业株式会社 | Oil separator |
Non-Patent Citations (1)
| Title |
|---|
| JP平5-118210A 1993.05.14 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1782335A (en) | 2006-06-07 |
| JP2006152890A (en) | 2006-06-15 |
| KR100748419B1 (en) | 2007-08-10 |
| KR20060059791A (en) | 2006-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1782335B (en) | oil separating structure and internal combustion engine | |
| US7913676B2 (en) | Internal combustion engine | |
| US7185643B2 (en) | Combined filter and fill tube | |
| US6517710B2 (en) | Structural assembly with an oil filter for an internal combustion engine | |
| US8113185B2 (en) | Device for separating oil from blow-by gas | |
| JP2009121281A (en) | Oil separator for internal combustion engine | |
| US7219629B2 (en) | Breathing system in combustion engine | |
| JP2015113820A (en) | Internal combustion engine | |
| US20140182569A1 (en) | Oil filter system for vehicle | |
| US8156926B2 (en) | Systems and methods for filtering crankcase fumes | |
| JP6502596B2 (en) | Internal combustion engine | |
| JP5012844B2 (en) | Fuel supply device | |
| CN106536914A (en) | Filter cartridge having separable filter components | |
| CN204371444U (en) | The fluid filter of internal-combustion engine | |
| US10267269B1 (en) | Venting method for engine crankcases | |
| CN104033209B (en) | From engine pack and the method thereof of engine blow-by gas separation machine oil | |
| JP2013199897A (en) | Oil separator | |
| JP2007009746A (en) | Oil mist treating device | |
| CN111075535A (en) | Separator | |
| KR100552217B1 (en) | Oil and dust separating apparatus | |
| CN109469531B (en) | Crankcase ventilation system oil and gas separator assembly and vehicle | |
| US10968796B2 (en) | Breather structure of engine | |
| JP2006063803A (en) | Engine crankcase emission control system | |
| CN201433800Y (en) | Motorcycle engine secondary filter mechanism | |
| JP5846059B2 (en) | Engine oil 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |