EP4069951A1 - Decanteur d'huile comprenant une chambre d'air frais - Google Patents
Decanteur d'huile comprenant une chambre d'air fraisInfo
- Publication number
- EP4069951A1 EP4069951A1 EP20801275.7A EP20801275A EP4069951A1 EP 4069951 A1 EP4069951 A1 EP 4069951A1 EP 20801275 A EP20801275 A EP 20801275A EP 4069951 A1 EP4069951 A1 EP 4069951A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- oil
- cylinder block
- decanter
- fresh air
- 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
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
-
- 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
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/0044—Layout of crankcase breathing systems with one or more valves
-
- 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
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/005—Layout of crankcase breathing systems having one or more deoilers
-
- 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
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M2013/027—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with a turbo charger or compressor
Definitions
- OIL DECANTER INCLUDING A FRESH AIR CHAMBER
- the invention relates to an oil separator for an internal combustion engine.
- the invention also relates to an internal combustion engine comprising such an oil separator.
- the invention relates to a vehicle comprising such an internal combustion engine and / or such an oil separator.
- crankcase gases are commonly referred to as “blow-by” or “blowby” gases.
- an internal combustion engine generally includes a means for circulating these blowby gases so as to discharge them from the cylinder block to an oil separator.
- a ventilation pipe connecting the air intake of the internal combustion engine to the cylinder block so as to bring fresh air to the cylinder block.
- the aim of the invention is to provide an oil decanter remedying
- the invention allows a non-return valve to be easily integrated into a ventilation pipe supplying fresh air.
- the invention relates to an oil separator for an internal combustion engine, in particular an oil separator intended to be arranged on a cylinder block of such an internal combustion engine, the oil separator comprising : a chamber an inlet made in the chamber intended to admit fresh air, in particular fresh air taken downstream of an air filter and / or upstream of a turbocharger, and an outlet made in the chamber intended to send fresh air into a cylinder block, in particular in the lower part of a connecting rod chamber, so as to expel blow-by gases and / or oil vapors from such a cylinder block .
- the fresh air chamber may be adjacent to an oil decanter settling chamber.
- the oil decanter may include a non-return valve arranged at the inlet so as to allow a flow to escape from the chamber only through the outlet.
- the decanter may include an oil return tubing sealingly passing through the chamber.
- the chamber can be a conduit extending between the inlet and the outlet.
- the pipe can pass through the settling chamber of the oil settling tank.
- the invention also relates to an internal combustion engine comprising a cylinder block, in particular an internal combustion engine comprising an intake comprising an air filter and / or a turbocharger, comprising an oil separator as defined above and a discharge pipe. air ventilation extending between the inlet of the chamber and a fresh air sampling orifice, in particular a sampling orifice formed downstream of the air filter and / or upstream of the turbocharger.
- the invention also relates to a vehicle, in particular a motor vehicle, comprising an internal combustion engine as defined above and / or an oil separator as defined above.
- Figure 1 is a schematic view of a vehicle comprising an internal combustion engine according to one embodiment.
- Figure 2 is a schematic view of an internal combustion engine with an oil separator according to one embodiment of the invention.
- Figure 3 is a schematic view of an internal combustion engine provided with an oil separator according to a first variant of the embodiment of the invention.
- Figure 4 is a schematic view of an internal combustion engine provided with an oil separator according to a second variant of the embodiment of the invention.
- Figure 5 is a top view of a cylinder block to which is fixed an oil separator according to the embodiment.
- Figure 6 is a sectional view of the cylinder block and the oil decanter along a plane parallel to an axis of a cylinder passing through an axis of a fresh air inlet in the oil decanter according to embodiment.
- Figure 7 is a side view of the cylinder block and the oil separator according to the embodiment.
- Figure 8 is a sectional view of the cylinder block and the oil separator along a plane perpendicular to the axes of the cylinders and passing through an air chamber of the oil separator according to the embodiment.
- FIG. 9 is a view in partial section of the cylinder block and of the oil separator along a plane parallel to a cylinder axis and passing through an air chamber of the oil separator according to the first variant of the embodiment of invention.
- FIG. 10 is another view in partial section of the cylinder block and the oil separator along a plane parallel to a cylinder axis and passing through an air chamber of the oil separator according to the embodiment of the FIG. invention.
- FIG. 11 is another view in section of the cylinder block and of the oil separator along a plane parallel to a cylinder axis and passing through an air chamber of the oil separator according to the embodiment of the invention. .
- FIG. 1 schematically illustrates a vehicle 1, for example a motor vehicle.
- the vehicle 1 comprises an internal combustion engine 2.
- the internal combustion engine 2 is for example the only means of traction and / or propulsion of the vehicle 1.
- an electric means for example a means comprising an electric motor and an electric energy storage means, also participates in the traction and / or the propulsion of the vehicle 1, one then speaks of a hybrid vehicle.
- the internal combustion engine 2 comprises a cylinder block 3.
- the cylinder block (s) 3 comprises at least one cylinder.
- the cylinder block 3 comprises three cylinders 3C.
- the internal combustion engine 2 further comprises an oil separator 10.
- the oil separator 10 is arranged on the cylinder block 3.
- the term “arranged” is understood to mean that the oil separator is fixed to the crankcase. cylinder 3, or even that the oil separator is integrated into the cylinder block.
- the oil separator can be part of the cylinder block.
- the internal combustion engine 2 comprises an intake 5.
- the intake 5 comprises an air filter 7 and / or a turbocharger 8.
- the engine 2 further comprises a pipe 6 of air ventilation.
- the cylinder block 3 comprises a connecting rod chamber 4.
- an oil layer H remains at the bottom, in a vertical direction, of the connecting rod chamber 4. .
- the casing of the oil decanter 10 comprises a chamber 20 independent of the settling.
- the chamber 20 is intended to receive fresh air F.
- this fresh air F is taken downstream of the air filter 7 and / or upstream of the turbocharger 8.
- the fresh air F arrives in the chamber 20 via the pipe 6.
- an inlet 21 is made in the chamber 20.
- An outlet 22 is made in the chamber 20 so as to open into the cylinder block 3, as illustrated in FIG. 11.
- the outlet 22 is intended to evacuate the air from the air chamber 20 and to send this fresh air F within the cylinder block 3.
- the fresh air F is preferably sent to the level of the connecting rod chamber 4 so in expelling the blowby gases and / or oil vapors present within the cylinder block 3.
- the pipe 6 extends between the inlet 21 of the chamber 20 and a sampling orifice 9 of fresh air.
- the sampling orifice 9 is therefore provided downstream of the air filter 7.
- a pipe 11 allows a return of settling oil RH by making the internal volume of the settling tank 10 communicate with the volume of an oil sump passing through the cylinder crankcase.
- the casing of the oil separator 10 comprises a non-return valve 30.
- the non-return valve 30 is integrated into the casing of the oil separator 10 in such a manner. to control the blockage of the inlet 21.
- this non-return valve only a flow discharging from the chamber 20 through the outlet 22 is possible.
- the settling tank 10 comprises a pipe 11 for returning the settling oil RH through the chamber 20.
- the pipe 11 passes through the chamber 20 in a sealed manner.
- the outlet. 22 is provided below the pipe 11, as illustrated in Figure 3.
- the fresh air chamber 20 is a duct.
- the internal volume of the chamber is equal, or substantially equal, to the internal volume of the duct 25.
- the duct 25 extends between the inlet 21 and the outlet 22, for example in a rectilinear manner.
- the duct 25 is arranged, for example horizontally or substantially horizontally, in a lower part of the settling tank.
- the pipe 25 is arranged under a junction 12 between the pipe 11 for the return of the settling oil RH and the settling tank 10. The pipe 25 can thus be in a settling chamber 13 of the settling tank.
- the function of the ventilation pipe 6 is to bring fresh air F, preferably filtered, into the cylinder block, in particular in the lower part of the connecting rod chamber 4.
- the blowby gases created by the combustion of the mixture air-fuel and oil vapors are thus expelled and pass through the oil separator 10 via the inlet pipe.
- the settling tank or settling box arranged outside the engine, more particularly outside the cylinder block 3 receives the blowby gases coming from the cylinder block, in particular from the connecting rod chamber.
- the motor 2 preferably comprises a first channel 14 connecting for example the interior volume of the settling tank, from an upper part 15 of the settling tank for example, to an air distributor 40.
- the engine 2 also comprises a second channel 16 connecting for example the internal volume of the settling tank, from a lateral part 17 of the settling tank for example, to the inlet 5, for example upstream of the turbocharger 8.
- the blowby gases BB trapped in the oil decanter due to the ventilation of fresh air F within the cylinder block can escape through the first channel 14 and / or through the second channel 16.
- blowby gases BB are then brought to join the intake 5 and therefore to be injected, for example at a cylinder head 18, as intake gases from the turbocharger 8 and / or directly from the air filter 7.
- an advantage of having the fresh air next to the settling is to allow a t heat transfer between the blow-by and the fresh air which promotes the settling of oil vapors.
- the deoiled gases benefit from cooling.
- the non-return valve of the cylinder block ventilation circuit is integrated into the oil decanter by creating an air chamber inside it.
- the air chamber communicates with the cylinder block, in particular at the level of the connecting rod chamber, by a tapping sealed at the interface between the outlet of the air chamber and the cylinder block, for example by using a gasket.
- the pipe 6 performs a second function, namely to keep the interior of the cylinder block always at vacuum thanks to the non-return valve.
- the non-return valve prevents blowby gases from flowing back to the air inlet through pipe 6, in particular in the event of overpressure.
- the collection of the fresh air F takes place downstream of the air filter 7 and upstream of the compressor 8 so as to arrive in the oil decanter 10.
- the volume of the settling tank communicates in the cylinder block 3.
- the non-return valve is placed on the path of the pipe 6, near the cylinder block 3 without however being fixed to the cylinder block 3. This results in a simplification of the cylinder block since it does not require any element of the cylinder block. specific fixing for the non-return valve, such as a screw and / or an internal thread and / or a receiving bore. Thus, given the elimination of this fastener, the cost of the functions of ventilation and settling of the blowby gases is lowered.
- the path of the pipe 6 is simplified with a reduction in the number of parts forming the path, in particular by having less curvature, in particular less curvature at a small radius. Note that only the oil decanter is modified to simplify the ventilation pipe.
- the pipe 6 is more accessible for intervention, the assembly-disassembly of the pipe being facilitated, both in the factory for the assembly of the engine and after-sales.
- the pipe 11 and therefore the blowby gas circuit BB discharged due to the ventilation of fresh air F passes through the air chamber 20. This results in a cooling of the oil at the level of the passage of the filled chamber 20 fresh air.
- the fresh air F is a priori at a temperature lower than that of the oil.
- the solution according to the invention therefore achieves the desired objective of simplifying a blowby gas ventilation pipe in a cylinder block and easily integrating a non-return valve, and has the following advantages:
- the cost is low, preferably only the settling tank is modified;
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1913603A FR3103856B1 (fr) | 2019-12-02 | 2019-12-02 | Décanteur d’huile comprenant une chambre d’air frais. |
| PCT/EP2020/081559 WO2021110369A1 (fr) | 2019-12-02 | 2020-11-10 | Decanteur d'huile comprenant une chambre d'air frais |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4069951A1 true EP4069951A1 (fr) | 2022-10-12 |
| EP4069951B1 EP4069951B1 (fr) | 2024-04-24 |
Family
ID=69375635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20801275.7A Active EP4069951B1 (fr) | 2019-12-02 | 2020-11-10 | Decanteur d'huile comprenant une chambre d'air frais |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4069951B1 (fr) |
| KR (1) | KR20220104732A (fr) |
| CN (1) | CN114929996B (fr) |
| FR (1) | FR3103856B1 (fr) |
| WO (1) | WO2021110369A1 (fr) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723531Y2 (ja) * | 1988-10-18 | 1995-05-31 | 日産自動車株式会社 | エンジンのブローバイガス還流装置 |
| JPH0893434A (ja) * | 1994-09-20 | 1996-04-09 | Nissan Motor Co Ltd | 内燃機関のブローバイガス換気装置 |
| JP3725204B2 (ja) * | 1995-06-08 | 2005-12-07 | オリヱント化学工業株式会社 | 新規トリフェニルメタン系造塩体染料及びインキ組成物 |
| JP3189649B2 (ja) * | 1995-11-14 | 2001-07-16 | 日産自動車株式会社 | エンジンのブローバイガスベンチレーション装置 |
| TW358849B (en) * | 1996-09-19 | 1999-05-21 | Honda Motor Co Ltd | 2-stroke internal combustion engine |
| DE102005059668A1 (de) * | 2005-12-12 | 2007-06-14 | Mahle International Gmbh | Brennkraftmaschine |
| FR2928683A1 (fr) * | 2008-03-11 | 2009-09-18 | Peugeot Citroen Automobiles Sa | Dispositif de dilution de gaz de carter dans un moteur de vehicule automobile |
| FR2931199B1 (fr) * | 2008-05-14 | 2010-04-23 | Coutier Moulage Gen Ind | Decanteur d'huile pour moteur a combustion interne |
| JP5202235B2 (ja) * | 2008-11-04 | 2013-06-05 | 株式会社マーレ フィルターシステムズ | エンジンの換気システム |
| DE102009053808B4 (de) * | 2009-11-18 | 2014-09-11 | Bundesanstalt für Materialforschung und -Prüfung (BAM) | Sicherheitsetikett zur Kennzeichnung von Waren |
| JP5847445B2 (ja) * | 2011-06-08 | 2016-01-20 | 株式会社マーレ フィルターシステムズ | 内燃機関のオイルセパレータ |
| US8408190B2 (en) * | 2011-07-06 | 2013-04-02 | GM Global Technology Operations LLC | Air-oil separator for extracting oil from engine blowby gas |
| JP2015158132A (ja) * | 2012-06-01 | 2015-09-03 | 株式会社マーレ フィルターシステムズ | 内燃機関のオイルセパレータ |
| JP5664628B2 (ja) * | 2012-10-16 | 2015-02-04 | トヨタ自動車株式会社 | 過給機付き内燃機関のブローバイガス換気システム |
| US9771841B2 (en) * | 2014-10-28 | 2017-09-26 | Ford Global Technologies, Llc | Crankcase ventilation for turbocharged engine |
| JP6502596B2 (ja) * | 2015-04-06 | 2019-04-17 | 本田技研工業株式会社 | 内燃機関 |
| DE202015105706U1 (de) * | 2015-10-27 | 2015-11-17 | Ford Global Technologies, Llc | Kurbelgehäuseentlüftung für turboaufgeladenen Motor |
-
2019
- 2019-12-02 FR FR1913603A patent/FR3103856B1/fr active Active
-
2020
- 2020-11-10 KR KR1020227018509A patent/KR20220104732A/ko active Pending
- 2020-11-10 WO PCT/EP2020/081559 patent/WO2021110369A1/fr not_active Ceased
- 2020-11-10 CN CN202080091833.7A patent/CN114929996B/zh active Active
- 2020-11-10 EP EP20801275.7A patent/EP4069951B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114929996B (zh) | 2025-02-07 |
| EP4069951B1 (fr) | 2024-04-24 |
| KR20220104732A (ko) | 2022-07-26 |
| FR3103856B1 (fr) | 2022-12-02 |
| CN114929996A (zh) | 2022-08-19 |
| FR3103856A1 (fr) | 2021-06-04 |
| WO2021110369A1 (fr) | 2021-06-10 |
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