WO2013054578A1 - オイルミストセパレータ - Google Patents
オイルミストセパレータ Download PDFInfo
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- WO2013054578A1 WO2013054578A1 PCT/JP2012/068391 JP2012068391W WO2013054578A1 WO 2013054578 A1 WO2013054578 A1 WO 2013054578A1 JP 2012068391 W JP2012068391 W JP 2012068391W WO 2013054578 A1 WO2013054578 A1 WO 2013054578A1
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- WIPO (PCT)
- Prior art keywords
- gas
- oil
- separator
- blow
- weir
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0089—Anti-return means
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- 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
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
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- 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
- F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
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- 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
- F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase
Definitions
- the present invention relates to an oil mist separator. More specifically, the present invention relates to an oil mist separator that can prevent separated oil from flowing in the gas outlet direction along the bottom surface.
- PCV positive crankcase ventilation
- the blow-by gas contains an oil component for lubricating the internal combustion engine in a mist form.
- the blow-by gas containing this oil component is burned, the amount of lubricating oil decreases, Problems such as generation of white smoke due to the combustion of components occur. For this reason, it is known that an oil mist separator is provided in the PCV system to separate mist-like oil contained in blow-by gas (see, for example, Patent Document 1).
- a plurality of guide plates are installed on the bottom surface of the breather chamber through which blow-by gas is circulated so that the gas passages are in a labyrinth, and the blow-by gas is circulated through the gas passages.
- the separated oil is discharged from an oil drop hole formed in front of each guide plate.
- the bottom surface of the breather chamber is inclined so as to become lower toward the downstream side. For this reason, there existed a problem that the isolate
- the guide plate provided on one side wall is provided such that its tip extends toward the downstream side of the gas passage. For this reason, there is a problem that the oil before the guide plates does not have a blocking effect by the guide plates and the oil tends to flow in the gas outlet direction.
- the present invention has been made in view of the above-described present situation, and an object thereof is to provide an oil mist separator capable of suppressing the separated oil from flowing in the gas outlet direction along the bottom surface.
- an invention according to claim 1 is an oil mist separator that separates mist-like oil contained in blow-by gas of an internal combustion engine, from the bottom wall and the side of the bottom wall.
- a separator body having a pair of standing side walls, in which a gas flow passage through which the blow-by gas flows is formed, a gas introduction part for introducing the blow-by gas into the separator body, and the blow-by gas from the separator body
- a gas discharge unit for discharging, a separation unit provided in the separator body between the gas introduction unit and the gas discharge unit, for separating the oil from the blow-by gas, and the gas flow path more than the separation unit
- a dam is provided on the bottom wall of the separator body on the downstream side of the separator and prevents the oil separated by the separating means from flowing out to the downstream side.
- an oil discharge portion that is provided on the upstream side of the gas flow passage from the weir and discharges the oil separated by the separation means from the separator body, and the weir includes the gas flow passage.
- a plurality of the weirs are formed so as to alternately extend from the pair of side walls, and the weirs have a distal end portion that is located on the upstream side of the base end portion and beyond the center in the width direction of the gas flow passage. The main point is that it extends.
- the invention according to claim 2 is summarized in that, in claim 1, the upper end surface of the weir is inclined so as to become lower from the base end portion toward the tip end portion.
- the gist of the invention described in claim 3 is that, in claim 1 or 2, a notch is formed in the upper end surface of the tip.
- the gist of the invention described in claim 4 is that, in any one of claims 1 to 3, an oil reservoir is formed at an end of the separator main body near the gas discharge part.
- a separator body having a bottom wall and a pair of side walls erected from the side of the bottom wall and having a gas flow passage through which blow-by gas flows, and the blow-by gas as a separator
- a gas introduction unit for introducing the gas into the main body; and a gas discharge unit for discharging blow-by gas from the separator main body.
- the oil mist separator is provided in the separator body between the gas introduction part and the gas discharge part, and includes a separation means for separating oil from blow-by gas, and a separator body on the downstream side of the gas flow path from the separation means.
- a plurality of weirs are formed so as to alternately extend from the pair of side walls along the gas flow path.
- leading end of the weir extends so as to be located on the upstream side of the base end portion and beyond the center in the width direction of the gas flow passage, it is possible to effectively exert the oil blocking function by the weir. it can. Furthermore, by providing the weir, the flow of blow-by gas near the bottom wall of the separator main body can be suppressed, and the oil can be prevented from being taken away to the downstream side due to the flow of blow-by gas.
- the upper end surface of the weir is inclined so as to become lower from the base end portion toward the tip end portion, it is possible to secure the flow rate of blow-by gas at the center portion in the width direction of the gas flow passage. Moreover, it is possible to suppress the oil that has been dammed from overflowing from the base end side of the weir and to overflow from the vicinity of the front end of the weir. Thereby, the overflowing oil can be reliably dammed by one downstream dam. Further, when the oil mist separator is inclined so as to become lower toward the downstream side of the gas flow passage, or when an inertial force is generated in the downstream direction of the gas flow passage, the distal end portion of the weir is the base end portion.
- the dam retaining capability is ensured substantially equal to the case where the height of the tip of the weir is the same as that of the base end. Therefore, it is possible to realize an oil mist separator that ensures both the flow rate of blow-by gas and the ability to block oil.
- the position where the oil that is blocked overflows from the weir can be the position of this notch.
- the overflowing oil can be more reliably stopped by the one downstream weir, and the oil can be more effectively suppressed from flowing in the direction of the gas discharge unit.
- the oil that has reached the vicinity of the gas discharge part along the surface of the bottom wall of the separator body can be stored. It can. Thereby, it can suppress that the isolate
- FIG. 2 is an enlarged view of a section taken along line II-II in FIG. 1.
- An oil mist separator (1) is an oil mist separator that separates mist-like oil contained in blow-by gas of an internal combustion engine, and includes a separator main body (3) and a gas introduction part (5) described below.
- the gas discharge part (7), the separation means (9), the weir (11) and the oil discharge part (13) are provided.
- the “separator body” includes a bottom wall (15) and a pair of side walls (17) erected from the side of the bottom wall, and a gas flow passage (19) through which blow-by gas flows is formed,
- the configuration, shape, material, etc. are not particularly limited.
- the above-mentioned “gas introduction part” introduces blow-by gas into the separator body, its shape, arrangement form, etc. are not particularly limited.
- This gas introduction part is preferably provided on the bottom wall of the separator body. This is because the separated oil accumulates on the bottom wall of the separator body, and can be recirculated to the oil reservoir of the internal combustion engine by allowing the oil to flow out of the gas inlet.
- gas discharge part discharges blow-by gas from the separator body
- its shape, arrangement form, etc. are not particularly limited. It is preferable that this gas discharge part is provided away from the bottom wall of the separator body. This is because oil that reaches the downstream side of the gas flow passage through the bottom wall can be prevented from being discharged from the gas discharge portion.
- the “separation means” is provided in the separator body between the gas introduction part and the gas discharge part, and its configuration, shape, material, etc. are not particularly limited as long as oil is separated from blow-by gas.
- the separating means for example, (i) a rectifying plate (21) provided in the gas flow passage so as to block the flow of blow-by gas, and a rectifying plate provided on the downstream side of the rectifying plate so as to face the rectifying plate.
- a through-hole (25) is formed in the current plate, and blow-by gas passes through the through-hole and collides with the collision plate (for example, FIG. 1 and FIG.
- the separation means may be in the form of separating using a centrifugal force, a filter, or the like. These separation means may be used alone in one form, or different forms of separation means may be provided in parallel or combined with the flow of blow-by gas.
- the above “weir” is provided on the bottom wall of the separator main body on the downstream side of the gas flow passage from the separation means, and as long as the oil separated by the separation means is blocked from flowing out to the downstream side, its configuration, shape,
- the material is not particularly limited.
- a plurality of weirs are formed so as to alternately extend from the pair of side walls of the separator body along the gas flow path. Further, the weir extends so that the distal end portion is located on the upstream side of the base end portion and beyond the center in the width direction of the gas flow passage (see, for example, FIG. 1 and the like).
- the above-mentioned weir can be inclined, for example, such that the upper end surface thereof becomes lower from the base end portion toward the tip end portion (see, for example, FIGS. 2 and 3).
- This inclination is, for example, an angle at which the dammed oil can surely overflow from the tip side in consideration of the assumed inclination angle ( ⁇ ) of the oil mist separator itself, inertia force, etc. It can be set (for example, see FIG. 4 etc.).
- a notch (31) can be formed on the upper end surface of the tip of the weir (see, for example, FIG. 6).
- the shape, size, etc. of the notch are not particularly limited.
- the weir can be formed, for example, in the shape of a bowl whose tip extends in the upstream direction of the gas flow passage (see, for example, FIG. 1).
- oil discharge part is provided on the upstream side of the gas flow path from the weir, and the configuration, shape, material, etc. thereof are not particularly limited as long as the oil separated by the separation means is discharged from the separator body.
- the oil discharge portion can be formed in a cylindrical shape so as to extend downward from the bottom wall of the separator body, for example.
- the oil discharge part can be provided with a backflow prevention valve, for example.
- an oil reservoir portion (33) may be formed at an end portion of the separator body near the gas discharge portion (see, for example, FIG. 5).
- the form of the oil reservoir is not particularly limited.
- an oil mist separator provided in a vehicle internal combustion engine is illustrated.
- An oil mist separator 1 according to this embodiment is an oil mist separator that separates mist-like oil contained in blow-by gas of an internal combustion engine. As shown in FIGS. 1 to 3, the oil mist separator 1 includes a separator body 3, a gas introduction part 5, a gas discharge part 7, a separating means 9, a weir 11 and an oil discharge part 13.
- the separator body 3 has a substantially rectangular tube shape including a bottom wall 15 and a pair of side walls 17 erected from the side of the bottom wall 15.
- the space inside the separator body 3 is a gas flow passage 19 through which blow-by gas flows.
- the gas introduction part 5 is provided on the bottom wall 15 on one end side of the separator body 3.
- the gas introduction part 5 is connected to a crankcase of an internal combustion engine (not shown), and introduces blow-by gas in the crankcase into the separator body 3.
- the gas discharge unit 7 is provided on the side wall 17 on the end side opposite to the end side on which the gas introduction unit 5 is provided, and discharges blow-by gas in the separator body 3 to the intake pipe. With such a configuration, blow-by gas is introduced into the separator body 3 from the gas introduction part 5, flows through the gas flow passage 19, and is discharged from the gas discharge part 7 to the outside of the separator body 3.
- Separation means 9 is provided in the separator body 3 between the gas introduction part 5 and the gas discharge part 7. As shown in FIGS. 1 and 2, the separating means 9 includes a rectifying plate 21 and a collision plate 23.
- the rectifying plate 21 is provided in the gas flow passage 19 so as to stand from the bottom wall 15 of the separator body 3 and block the flow of blow-by gas, and a plurality of through holes 25 are formed on the wall surface. Yes.
- the collision plate 23 is provided on the downstream side of the rectifying plate 21 so as to face the rectifying plate 21.
- a plurality of baffle plates 27 are provided on the upstream side of the gas flow passage 19 of the separating means 9 (hereinafter also simply referred to as upstream side).
- the baffle plates 27 are provided so as to alternately extend from the bottom wall 15 and the ceiling wall 29 of the separator body 3 along the gas flow path 19.
- the blow-by gas snakes and circulates through these baffle plates 27, and the oil is also separated from the blow-by gas here. That is, the plurality of baffle plates 27 also function as separation means.
- the baffle plates 27 extending from the ceiling wall 29 are connected to the separator body 3 on three sides of the ceiling wall 29 and the side walls 17.
- the baffle plate 27 extending from the bottom wall 15 is only connected to the separator body 3 at the bottom wall 15. That is, the baffle plates 27 extending from the bottom wall 15 are not connected to the side walls 17, and a gap is formed between the baffle plates 27 extending from the bottom wall 15 and the side walls 17. . This prevents the oil separated between the baffle plates 27 extending from the bottom wall 15 from accumulating.
- the weir 11 is provided on the bottom wall 15 of the separator body 3 on the downstream side of the gas flow passage 19 with respect to the separation means 9, and the oil separated by the separation means 9 flows down the bottom wall 15 to the downstream side. Damming it.
- a plurality of weirs 11 are provided so as to alternately extend from the pair of side walls 17 of the separator body 3 along the gas flow passage 19. Further, each weir 11 extends so that the distal end portion thereof exceeds the center of the gas flow passage 19 in the width direction and is located on the upstream side of the gas flow passage 19 with respect to the base end portion.
- the weir 11 is provided so as to be inclined so that the upper end surface thereof becomes lower from the base end portion toward the tip end portion. As shown in FIG.
- the inclination angle is determined when the oil mist separator 1 is inclined at an angle ⁇ or the corresponding inertial force is taken into consideration when a vehicle inclination or an inertial force assumed when the vehicle is driven is generated. Even if it works, it is set as an angle at which oil overflows from the tip side of the weir 11.
- the weir 11 provided on the most downstream side is formed in a bowl shape whose front end extends in the upstream direction of the gas flow passage 19.
- the oil discharge part 13 is provided on the upstream side of the gas flow passage 19 with respect to the weir 11.
- the oil discharge portion 13 is formed in a cylindrical shape so as to extend downward from the bottom wall 15 of the separator body 3, and a hole having a smaller cross-sectional area than that of the cylindrical portion is formed in the bottom portion. Accordingly, the oil separated by the separating means 9 is accumulated in the oil discharge portion 13. Further, when the oil is accumulated to a predetermined height, the oil is discharged to the outside against the pressure in the gas flow passage 19.
- the oil adhering to the surface of the collision plate 23 is gradually aggregated and falls below the collision plate 23.
- the oil separated in this way travels along the surface of the bottom wall 15 of the separator body 3, reaches the oil discharge portion 13, and is discharged to the outside of the separator body 3.
- part of the separated oil may flow downstream from the oil discharge part 13. Such oil is blocked by the weir 11. Further, when the oil blocked by the weir 11 overflows downstream, it overflows from the vicinity of the tip of the weir 11 as shown in FIG. The overflowing oil is blocked by the one downstream weir 11 and is returned to the upstream side by the action of the inclination, inertial force, etc. during vehicle operation.
- the weir 11 that blocks the oil separated by the separating means 9 from flowing out to the downstream side and the upstream side of the gas flow passage 19 with respect to the weir 11 and separated by the separating means 9 And an oil discharge portion 13 for discharging oil from the separator body 3.
- a plurality of weirs 11 are formed so as to alternately extend from the pair of side walls 17 along the gas flow path 19.
- the upper end surface of the weir 11 is inclined so as to become lower from the proximal end portion toward the distal end portion, the flow rate of blow-by gas at the center portion in the width direction of the gas flow passage 19 can be ensured. Moreover, it is possible to suppress the oil that has been dammed from overflowing from the base end side of the weir 11 and to overflow from the vicinity of the distal end of the weir 11. Thereby, the overflowing oil can be surely stopped by the one downstream weir 11.
- the tip of the weir 11 Is coupled to extend so as to be positioned upstream of the base end, and the weir 11 has a damming ability that is substantially equal to the height of the tip of the weir 11 is the same as the base end. Therefore, it is possible to realize an oil mist separator that ensures both the flow rate of blow-by gas and the ability to block oil.
- the tip of the most downstream weir 11 among the plurality of weirs 11 is formed in a bowl shape extending toward the upstream side of the gas flow passage 19, the oil retaining capacity of the weir 11 is set to the other weir 11. It can be larger than the damming capacity.
- the baffle plate 27 extending from the bottom wall 15 is connected to the separator body 3 only by the bottom wall 15, and a gap is formed between the side walls 17. Thereby, the oil separated in the baffle plate 27 can be prevented from staying between the baffle plates 27 extending from the bottom wall 15.
- the baffle plates 27 extending from the ceiling wall 29 are connected to the separator body 3 on the three sides of the ceiling wall 29 and the side walls 17, so that they collide with the baffle plates 27 extending from the ceiling wall 29.
- the blowby gas thus made can be reliably circulated to the bottom wall 15 side.
- the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the above embodiment, the upper end surface of the weir 11 is inclined so as to become lower from the proximal end portion toward the distal end portion. However, the present invention is not limited to this, and for example, the upper end surface extends from the proximal end portion to the distal end portion. It is good also as a weir of the same height.
- a notch 31 may be formed on the upper end surface of the tip of the weir 11.
- an oil reservoir 33 may be formed at the end of the separator body 3 near the gas discharge part 7. As a result, oil that has reached the vicinity of the gas discharge portion 7 along the surface of the bottom wall 15 of the separator body 3 can be stored. As a result, it is possible to suppress the separated oil from flowing out of the gas discharge unit.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
Description
上記「ガス導入部」は、ブローバイガスをセパレータ本体に導入する限り、その形状、配置形態等は特に問わない。このガス導入部は、セパレータ本体の底壁に設けられていることが好ましい。分離されたオイルはセパレータ本体の底壁に溜まることから、オイルをガス導入部から流出させることにより、内燃機関のオイル貯留部に還流させることができるからである。
上記「ガス排出部」は、ブローバイガスをセパレータ本体から排出する限り、その形状、配置形態等は特に問わない。このガス排出部は、セパレータ本体の底壁から上方に離れて設けられていることが好ましい。底壁を伝ってガス流通路の下流側に到達したオイルがガス排出部から排出されてしまうのを抑制することができるからである。
(1)オイルミストセパレータの構成
本実施例に係るオイルミストセパレータ1は、内燃機関のブローバイガスに含まれるミスト状のオイルを分離するオイルミストセパレータである。図1~図3に示すように、オイルミストセパレータ1は、セパレータ本体3、ガス導入部5、ガス排出部7、分離手段9、堰11及びオイル排出部13を備えている。
ガス排出部7は、ガス導入部5が設けられている端部側とは反対の端部側の側壁17に設けられており、セパレータ本体3内のブローバイガスを吸気管へ排出する。このような構成により、ブローバイガスは、ガス導入部5からセパレータ本体3内に導入され、ガス流通路19を流通して、ガス排出部7からセパレータ本体3の外部に排出される。
次に、オイルミストセパレータ1の作用について説明する。ガス導入部5からセパレータ本体3内に導入されたブローバイガスは、図2に示すように、邪魔板27により蛇行させられながらガス流通路19を流通する。このとき、ブローバイガスに含まれるミスト状のオイルのうち、比較的大きな粒子のオイルが慣性分離される。分離手段9では、ブローバイガスは、整流板21に形成された貫通孔25を通過することにより流速が増大され、この状態で衝突板23に衝突する。このとき、オイルミストは衝突板23に慣性衝突してその表面に付着する。これによりブローバイガスからオイルが分離される。そして、衝突板23の表面に付着したオイルは次第に凝集され、衝突板23の下方に落下する。このようにして分離されたオイルは、セパレータ本体3の底壁15の表面を伝ってオイル排出部13に達し、セパレータ本体3の外部に排出される。
以上より、本実施例のオイルミストセパレータ1によると、底壁15及びこの底壁15の側方から立設された一対の側壁17を有し、ブローバイガスが流通するガス流通路19が形成されたセパレータ本体3と、ブローバイガスをセパレータ本体3に導入するガス導入部5と、ブローバイガスをセパレータ本体3から排出するガス排出部7と、ガス導入部5とガス排出部7との間のセパレータ本体3内に設けられ、ブローバイガスからオイルを分離する分離手段9と、分離手段9よりもガス流通路19の下流側のセパレータ本体3の底壁15に設けられ、分離手段9により分離されたオイルが下流側へ流出するのを堰き止める堰11と、この堰11よりもガス流通路19の上流側に設けられ、分離手段9により分離されたオイルをセパレータ本体3から排出するオイル排出部13と、を備えている。そして、堰11は、ガス流通路19に沿って、一対の側壁17から互い違いに延びるように複数形成されている。
また、複数の邪魔板27のうち、底壁15から延びる邪魔板27を底壁15のみでセパレータ本体3に接続するようにし、両側壁17との間に隙間を形成するようにしている。これにより、邪魔板27において分離されたオイルが、底壁15から延びる邪魔板27の間に滞留してしまうことを防止することができる。一方、複数の邪魔板27のうち、天井壁29から延びる邪魔板27を天井壁29及び両側壁17の三方においてセパレータ本体3に接続するようにしたので、天井壁29から延びる邪魔板27に衝突したブローバイガスを確実に底壁15側に流通させることができる。
Claims (4)
- 内燃機関のブローバイガスに含まれるミスト状のオイルを分離するオイルミストセパレータであって、
底壁及び前記底壁の側方から立設された一対の側壁を備え、前記ブローバイガスが流通するガス流通路が形成されたセパレータ本体と、
前記ブローバイガスを前記セパレータ本体に導入するガス導入部と、
前記ブローバイガスを前記セパレータ本体から排出するガス排出部と、
前記ガス導入部と前記ガス排出部との間の前記セパレータ本体内に設けられ、前記ブローバイガスから前記オイルを分離する分離手段と、
前記分離手段よりも前記ガス流通路の下流側の前記セパレータ本体の前記底壁に設けられ、前記分離手段により分離されたオイルが前記下流側へ流出するのを堰き止める堰と、
前記堰よりも前記ガス流通路の上流側に設けられ、前記分離手段により分離されたオイルを前記セパレータ本体から排出するオイル排出部と、を備え、
前記堰は、前記ガス流通路に沿って、前記一対の側壁から互い違いに延びるように複数形成されており、
前記堰は、先端部が、前記ガス流通路の幅方向の中心を越え且つ基端部よりも前記上流側に位置するように延びていることを特徴とするオイルミストセパレータ。 - 前記堰の上端面は、前記基端部から前記先端部に向かって低くなるように傾斜している請求項1記載のオイルミストセパレータ。
- 前記先端部の上端面には切り欠き部が形成されている請求項1又は2記載のオイルミストセパレータ。
- 前記セパレータ本体の前記ガス排出部寄りの端部にはオイル溜まり部が形成されている請求項1乃至3のいずれか一項に記載のオイルミストセパレータ。
Priority Applications (4)
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DE112012004243.3T DE112012004243T5 (de) | 2011-10-11 | 2012-07-19 | Ölnebelabscheider |
US14/123,670 US9221001B2 (en) | 2011-10-11 | 2012-07-19 | Oil mist separator |
JP2013538460A JP5954333B2 (ja) | 2011-10-11 | 2012-07-19 | オイルミストセパレータ |
CN201280037021.XA CN103732870A (zh) | 2011-10-11 | 2012-07-19 | 油雾分离器 |
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JP2011-224168 | 2011-10-11 | ||
JP2011224168 | 2011-10-11 |
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WO2013054578A1 true WO2013054578A1 (ja) | 2013-04-18 |
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PCT/JP2012/068391 WO2013054578A1 (ja) | 2011-10-11 | 2012-07-19 | オイルミストセパレータ |
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US (1) | US9221001B2 (ja) |
JP (1) | JP5954333B2 (ja) |
CN (1) | CN103732870A (ja) |
DE (1) | DE112012004243T5 (ja) |
WO (1) | WO2013054578A1 (ja) |
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Also Published As
Publication number | Publication date |
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DE112012004243T5 (de) | 2014-08-21 |
JP5954333B2 (ja) | 2016-07-20 |
US20140109533A1 (en) | 2014-04-24 |
US9221001B2 (en) | 2015-12-29 |
CN103732870A (zh) | 2014-04-16 |
JPWO2013054578A1 (ja) | 2015-03-30 |
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