EP1464797A2 - Ölabscheider für die Reinigung von Ölnebel enthaltendem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine - Google Patents
Ölabscheider für die Reinigung von Ölnebel enthaltendem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1464797A2 EP1464797A2 EP04003787A EP04003787A EP1464797A2 EP 1464797 A2 EP1464797 A2 EP 1464797A2 EP 04003787 A EP04003787 A EP 04003787A EP 04003787 A EP04003787 A EP 04003787A EP 1464797 A2 EP1464797 A2 EP 1464797A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil separator
- oil
- impeller
- housing
- crankcase ventilation
- 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
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Classifications
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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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- 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
- F01M2013/0005—Crankcase ventilating or breathing with systems regulating the pressure in the carter
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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
- F01M13/02—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
- F01M2013/026—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with pumps sucking air or blow-by gases from the crankcase
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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
- F01M2013/0422—Separating oil and gas with a centrifuge device
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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
- F01M2013/0422—Separating oil and gas with a centrifuge device
- F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
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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
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
Definitions
- the present invention relates to oil separators for the Cleaning crankcase ventilation gas containing oil mist an internal combustion engine, with a housing with an inlet for the crankcase ventilation gas, one Purified gas outlet and an oil outlet, wherein in the housing at least one rotatable, rotating Oil separating element is arranged, an inner Surface of a radially outer surrounding the oil separating element Wall area of the housing as oil precipitation and Oil collecting surface formed and connected to the oil outlet is.
- An oil separator of the type mentioned is from WO 02/44530 A1 known.
- the known oil separator has an oil separating element a rotatably mounted centrifugal rotor attached to the radially outside a ring of turbine blades is. Via at least one stationary drive fluid nozzle can drive fluid, here compressed air, on the turbine blades be guided to rotate the centrifugal rotor to move.
- the compressed air used for the drive comes from one turbocharger provided on the associated internal combustion engine.
- the turbocharger does not sufficient amount of compressed air or only compressed air provides insufficient pressure
- compressed air from a Air tank attached to an associated vehicle for a compressed air brake system is available.
- a friction-increasing shaft bushing from the Oil separator housing to an external rotor drive is avoided.
- the disadvantage of this known oil separator is that both a turbocharger and a Compressed air system, which is practically only with heavy Trucks is the case.
- Another disadvantage is that through the turbine-like drive of the centrifugal rotor significant amounts of air are introduced into the oil separator that adversely affect the pressure conditions and lead to a deterioration in the separation effect can.
- the centrifugal rotor is preferably made here from a stack of conical plates between which through the crankcase ventilation gas radially from the inside flows outwards. They hit the oil mist forming oil droplets on the surface of each conical Plates down and from there on the oil precipitation and thrown off oil collecting surface.
- Another oil separator for the purpose mentioned at the beginning is known from DE 100 44 615 A1. Also a centrifugal rotor is provided for this oil separator, that as a plate separator, also with one Stack of conical plates, is formed. This one oil separating element formed by the plate separator is mounted on a rotatably mounted axis that the housing is led out and with an outside of the Housing drive means is coupled.
- Task to oil separator of the type mentioned create that avoid the disadvantages set out above and where in particular a compact design, a good promotional effect and a good separation performance can be achieved.
- This oil separator according to the invention is advantageous in a single component designed as an impeller the functions of a rotor and a compressor are summarized, what a particularly compact design with low Size results. At the same time, this ensures that no external compressor or any other Conveyor for the maintenance of Flow of the crankcase ventilation gas and for the Compliance with a predetermined vacuum in the crankcase is required.
- the crankcase ventilation gas inlet and the outlet for the cleaned gas can in each case according to the circumstances in the specific application axially or tangentially or in an intermediate direction run.
- the outlet for the cleaned Gas is preferably associated with the intake tract Internal combustion engine connected.
- the oil outlet can be used gravity for the removal of the deposited Oil is provided in a geodetically deepest part of the housing his; alternatively, the oil outlet in the housing can also are higher because the oil separated by the rotating Impeller also to a higher position of the Oil outlets can be promoted.
- the oil outlet is through pressurized its peripheral arrangement, thereby the oil drain is promoted.
- the invention Oil separator in practically any installation position be used. An undesirable entry of oil into the gas outlet and in the bearing points of the impeller through appropriate design and shape of the housing be prevented.
- the housing and the Impeller in the form of a radial or axial compressor or are formed in a mixture of the two. This ensures that the desired funding effect is achieved to a sufficiently large extent, while at the same time ensuring that the crankcase ventilation gas effective in for the deposition of the oil mist required to generate rotary motion Centrifugal forces are added.
- this in the form of a multi-stage and / or one multi-flow compressor In order to increase the efficiency of the oil separator, this in the form of a multi-stage and / or one multi-flow compressor.
- this drive preferably comprises a magnetic coupling or an eddy current coupling as well an electrically or hydraulically or pneumatically driven Engine or one from the internal combustion engine derived mechanical drive. All parts of the engine are therefore outside of the crankcase ventilation gas flowed through the interior of the oil separator.
- the transfer the driving force on the impeller is non-contact via the magnetic coupling or the eddy current coupling through a wall of the oil separator housing through, this wall preferably an end or peripheral wall. In this way there is also any risk of explosion or fire from sparks avoided within an electric drive motor because the possibly flammable crankcase ventilation gases not in the field of electrical, for example Drive motor can get.
- a transmission gear between the engine and clutch preferably with a fixed gear ratio, be provided to both the engine and the other the wheel with a cheap, different from each other To be able to operate speed.
- a good separation effect of the oil separator can in practice Speeds of the impeller in a range between about 5,000 and 15,000 rpm are expected.
- the impeller can be driven without contact include an integrated brushless electric motor.
- the housing of the oil separator can be perfect remain closed, so that even with this version there is no need for friction-increasing shaft seals can.
- the electric motor is a brushless motor, there is also no risk of ignition of the crankcase ventilation gas, if this is an ignitable Mixture should represent. So that's despite one electric drive the necessary security guaranteed.
- an alternative embodiment of the oil separator suggests in this regard, that the impeller with a variable, a current operating state of the Internal combustion engine adapted speed is drivable. For this version, it is a bit more complex Drive required, but can also be used at the same time Improve the efficiency of the oil separator and a targeted influencing of the pressure in the crankcase achieved become.
- the impeller as an open, high-speed impeller is executed.
- Such one Impeller is relatively easy to manufacture and exhibits a low weight, which means that at a given drive power high speeds can be reached quickly.
- the impeller can be used as a closed impeller a cover plate.
- Using the cover plate is achieved in particular that the crankcase ventilation gas necessarily in its full volume flow is detected by the impeller, causing the crankcase ventilation gas granted rotation particularly intensely becomes what the separation of the oil mist by centrifugal force is beneficial.
- the flow conditions inside the oil separator to influence favorably, the impeller upstream with precursors.
- Another alternative solution to the task at hand or further training of the oil separator is required 15 specified.
- a fixed and / or one with the rotating oil separator element or the impeller rotating Filter body preferably made of a foam or a knitted fabric.
- the oil separator becomes a conventional oil separator integrated in the oil separator in the form of the filter body, the separation effects being advantageous complete.
- the impeller is rotatable on a fixed Shaft or fixed on a rotatably mounted Shaft is arranged that the impeller is flying or tensioned is stored and that as a bearing for the rotatable Storage of the impeller or the shaft at least one Plain bearings or roller bearings or air cushion bearings or magnetic bearings is provided.
- the choice between the different Execution of the shaft is advisable after the respective circumstances of the individual case and in particular taken according to the given spatial conditions. Flying storage is more likely to be shorter Expedient wheels; tensioned storage is particularly important useful for impellers with a larger axial length.
- Plain or roller bearings are common and inexpensive Bearings that can be accessed on the market. Air cushion bearings or magnetic bearings are somewhat more complex, are characterized by a particularly low Friction, so that this is a particularly good drive efficiency can be achieved.
- impellers fitted with blades on one side it can come in operation that there is a pressure difference between the two sides of the impeller that trains an axial force on the impeller. This can cause increased friction in the bearings of the impeller or the associated shaft.
- the impeller is equipped on both sides with blades or that at one side impeller equipped with blades in this at least one the side of the impeller equipped with blades with its other side connecting pressure compensation opening is appropriate. This can cause pressure differences do not arise between the two sides of the impeller, whereby axial caused by pressure differences Forces on the impeller are excluded.
- the housing consists of two housing parts with one in the Oil precipitation and oil collecting surface surrounding housing parting level is executed.
- the housing parts advantageous as injection molded parts made of plastic or be made of light metal and include of the impeller to be assembled into the housing.
- the housing parting level in the oil Oil collection area is also an inexpensive way by separating the housing parts access to the oil precipitation and oil collecting area and getting to the impeller, around these if necessary as part of maintenance of the oil separator to clean.
- Another alternative solution to the task at hand or further training of the oil separator is required 21 specified.
- the installation space required is particularly small and so short flow paths are advantageously achieved.
- a regulating or control device is assigned to this, with which the function of the oil separator at least through Varying the speed of the rotating oil separator or impeller the current operating status the internal combustion engine, preferably by access on one in an electronic engine control and control unit digitally stored engine map, adaptable is.
- This regulation or control device can be achieved be that in different operating conditions Internal combustion engine depending on the oil separator so in its operation is affected on the one hand always a good efficiency with the oil mist separation is achieved from the crankcase ventilation gas and that on the other hand, the pressure in the crankcase of the associated one Internal combustion engine within a predetermined pressure range is held.
- the rule or Control unit preferably a permanently connected diagnostic unit or an interface for the needs Connection of a diagnostic unit.
- in or sensors are provided on the oil separator with which parameters relevant to the operation of the oil separator, in particular the actual speed of the rotating oil separating element or impeller, gas pressure before and / or behind the rotating oil separator or impeller, gas volume flow through the oil separator, temperature of the inflowing Crankcase ventilation gas and / or the outflowing Clean gas and / or the oil separator itself or his Drive, detectable and to the regulating or control device are redistributable, and that in or on the oil separator Actuators are provided with which the operation of the oil separator influencing adjustable organs, in particular the drive of the rotating oil separating element or Impeller or the throttle bodies or the throttle and Valve elements or the guide vanes are adjustable.
- the regulating or control device can always via the sensors record the current operating status of the oil separator and if necessary via the actuators the oil separator in its Influence function and mode of operation so that always guarantees an optimal or almost optimal mode of operation is to the current operating state the associated internal combustion engine is adapted.
- the oil separator or the drive of the oil separator have a cooling device, the according to the detected temperatures can be switched on or off or is adjustable.
- crankcase ventilation gas that flows through the oil separator, and / or at least a part of the oil separator into an ultrasonic vibration is relocatable.
- the ultrasonic vibration can separate out the oil droplets the crankcase ventilation gas can be positively influenced.
- the flowability of the deposited Oil increased so that the oil separator faster leaves through its oil outlet.
- crankcase ventilation gas that flows through the oil separator
- electrostatically chargeable is.
- an electrostatic charge can separate oil droplets from the crankcase ventilation gas carried oil mist positively be like this in itself from pure electrostatic Separators is known, which is a significant one Have size.
- the electrostatic charge becomes complementary used to generate the centrifugal force Separation effect to be reinforced.
- the present invention proposes in the claim 29 an oil separating device, characterized in that they have several oil separators connected in parallel according to any one of the preceding claims.
- an oil separating device characterized in that they have several oil separators connected in parallel according to any one of the preceding claims.
- the materials used for the oil separator must of course against those occurring in practice resistant to thermal, mechanical and chemical influences his. These can preferably be high quality Perform plastics and light metals.
- Oil separator 1 comprises a housing 10 which consists of two Housing parts 11, 12 is formed.
- the housing parts 11, 12 lie along a parting plane 10 'with an intermediate layer of a sealing element to each other and are in suitably connected together, for example by means of screws.
- An impeller 2 is rotatable on the inside of the housing 10 a shaft 17 fixed to the housing, for which a Slide bearing 24 is used between the shaft fixed to the housing 17 and a hub 21 forming part of the impeller 2 is arranged.
- the impeller 2 has a base plate 22, which with in Circumferentially spaced blades 20 is occupied.
- the housing 10 On the left in FIG. 1, the housing 10 has an inlet 13 for crankcase ventilation gas to be freed from oil mist on that in the direction of the drawn in the inlet 13 Arrow flows in.
- the oil separator is in the inlet 13 1 an adjustable throttle member 13 'in the form of a pivotable Throttle valve arranged with which the free Passage cross section of inlet 13 for the crankcase ventilation gas is changeable.
- the inflow crankcase ventilation gas is through the impeller 2 when it rotates by means of the rotary drive 3 set in rotation, causing the crankcase ventilation gas entrained oil droplets a centrifugal force is exercised.
- the impeller 2 is involved his blades 20 both as a centrifugal rotor and as Compressor, the latter to produce a promotional effect on the gas in the direction from the inlet 13 to the outlet 14 serves.
- the oil droplets impacted by the centrifugal force reach radially outwards and strike one formed on the inside of the housing 10 and quilt 15 from. They flow from there precipitated oil droplets under the force of gravity and under the effect of a pressure drop down and leave through a deepest area of the housing 10 provided oil outlet 16, the oil separator 1, usually towards an associated oil pan, here Internal combustion engine, not shown.
- a non-contact electrical serves Drive 3 for generating the rotary movement of the Impeller 20 about its axis of rotation 29.
- the contactless electric drive 3 through an electric motor 30 formed in a separate housing area 18 outside the interior of the oil separator 1 lies.
- a motor shaft 31 is connected to the motor 30 Arrangement of permanent magnets 35 rotatably connected.
- This arrangement of permanent magnets 35 rotates when switched on Electric motor 30 immediately outside of the right housing part 12 of the housing 10.
- an arrangement of second permanent magnets 25 the non-rotatably connected to the impeller 2, for example glued, are.
- the magnetic coupling thus formed takes the impeller 2 with the electric motor 30 switched on and thus ensures the desired rotational movement of the impeller 2 without it a passage of a rotatable shaft through a Wall of the housing 10 is required.
- the for the operation of the electric motor 30 required electrical energy is shown here only in sections electrical cable 34 supplied. Instead of permanent magnets 25, 35 can also use hysteresis material magnets become.
- FIG 2 shows the oil separator from Figure 1, which is now around several components are added and in which the electrical Drive 3 is modified.
- the housing 10 with its two housing parts 11, 12 and corresponds to the parting plane 10 'running between these the embodiment according to FIG. 1. Also the impeller 2 is identical to the embodiment according to FIG. 1.
- the inlet 13 is equipped with two sensors 71 with which the temperature and the pressure of the crankcase ventilation gas in the inlet 13 of the oil separator 1 can be detected.
- the inlet 13 can also be arranged tangentially, as indicated by dashed lines at the top right of the inlet 13 drawn continuously.
- the cleaned crankcase ventilation gas outlet 14 here, as in Figure 1, tangentially upwards from the housing 10 from.
- an outlet 14 adjustable throttle body 14 ' also in the form of a pivotable throttle valve is arranged.
- a flow sensor 72 arranged in the shape of a flowing Has gas rotatable measuring element.
- the left can also be used as a flow measuring sensor Sensor 72 'shown separately at the top in FIG. 2 is used be formed here by a heated wire is, which corresponds to the present Gas flow cools more or less, causing it electrical resistance varies.
- Another sensor arrangement is at the bottom right in FIG. 2 arranged on the right housing part 12 and stands with the Inside the housing 10 in connection to the prevailing therein Temperature and pressure of the crankcase ventilation gas capture.
- a control or Control unit 7 By means of this rule or Control unit 7, the drive 3 of the oil separator 1 so be regulated that the best possible separation performance and a desired pressure in the crankcase associated internal combustion engine, which with the inlet 13th connected, is achieved.
- the adjustable Throttle element 14 ′ from the regulating or control device 7 be adjusted in a suitable manner.
- the drive 3 is in the oil separator 1 according to FIG. 2 not with an electric motor, but with one Coil assembly 33, which itself is fixed is, but generate a rotating electromagnetic field can.
- This rotating electromagnetic field works through a wall of the right housing part 12 to the permanent magnets 25 attached to the impeller 2, whereby the rotary drive of the impeller 2 can be effected.
- the drive 3 is also with the regulating or control device 7 in connection. For the supply of electrical energy here too, drive 3 is only used in sections Electrical cable 34 shown.
- Figure 3 of the drawing shows a look inside the Oil separator 1 according to Figure 2 from left to right removed left housing part 11.
- the eye is now striking the right housing part 12 in FIG. 2 and the parting plane 10 'with the impeller 2.
- located in the center of the Impeller 2 is perpendicular to the plane of the drawing Axis of rotation 29.
- the base plate 22 with those arranged on its front, preferably one-piece blades 20 which are used for compressors typical curvature in its course from the radial inside radially outward.
- Figure 4 shows a two-stage oil separator 1, the characterized in that it has two impellers 2 ', 2.
- the two impellers 2 ', 2 are one behind the other and rotatable about a common axis of rotation 29 in the here three housing parts housing 10 housed.
- the inlet 13 is located on the right side of the housing 10 for crankcase ventilation gas to be de-oiled.
- Radially outside of the blades 20 of the first impeller 2 ' a first oil precipitation and oil collection surface 15, from which goes down a first oil outlet 16.
- the two wheels 2 ', 2 are driven together here again via a contactless drive, why the left in Figure 4 impeller 2 with an arrangement is equipped with permanent magnets 25, such as already explained earlier.
- the wheels 2 ', 2 are together non-rotatably connected.
- Bearings 24, 24 ' serve to support the impellers 2', 2, by means of which the impellers 2 ', 2 on the housing-fixed Shaft 17 are mounted.
- the hub 21 'formed as a precursor 26 the blades of the precursor 26 a favorable transition of the inflowing Cause gas to the blades 20 of the impeller 2 '.
- both impellers 2 ', 2 each have a supporting base plate 22.
- FIG. 5 shows an oil separator 1, which is characterized is that this is a double-flow oil separator 1 acts.
- This oil separator 1 is mirror-symmetrical to a perpendicular to the plane of the drawing Middle level trained and has left and right an inlet 13 for crankcase ventilation gas to be oiled.
- the housing 10 of the oil separator 1 has two housing halves, each in each half an impeller 2 is arranged, the impellers 2 are arranged mirror-symmetrically. Open upwards the interiors of the two parts of the housing 10 into one common outlet 14 for the de-oiled crankcase ventilation gas.
- the two wheels 2 are here again on one common shaft 17 fixed to the housing with the help of bearings 24 rotatably mounted.
- the impellers 2 are driven again contactless by means of an electrical Drive 3.
- coils 33 are arranged, the via an electrical line 34 with a suitable one Voltage are supplied.
- permanent magnets 25 arranged the impeller side part of the drive 3 form.
- FIG. 6 shows an oil separator 1, in which between the Outlet 14 and inlet 13 for the crankcase ventilation gas a return line 19 is present.
- this return line 19 is an adjustable Throttle body 19 'in the form of a pivotable throttle valve arranged. With this throttle member 19 ' the passage cross section of the return line 19 as required adjust or close completely. Via this return line 19 can be at least part of the oil separator 1 coming crankcase ventilation gas from Outlet 14 are led back to inlet 13, so that a Part of the gas passes through the oil separator 1 several times.
- the oil separator 1 per se is only in an external view in FIG. 6 shown so that only the housing 10 with the Drive 3 attached to the right is visible. That in Inside the housing 10 arranged impeller 2 is in dashed lines Lines indicated.
- Figure 7 shows in the left and in the right half each a version of the impeller 2.
- the impeller 2 is as open impeller, the blades 20 radial end freely outside.
- the radially inner part of the impeller 2 forms the hub 21, in the lower part of which in FIG Arrangement of permanent magnets 25 is provided.
- Radial The coils 33 lie on the outside of the permanent magnets 25 as part of the drive, a coil 33 being visible here is.
- the impeller 2 is as closed impeller.
- the blades 20 at its end remote from the hub 21 connected to one another via a circumferential cover disk 122.
- the right impeller 2 has a base plate 22, in which the permanent magnets 25 are attached are. Below this permanent magnet 25 is one of the Coils 33 as part of the contactless electric drive the impeller 2.
- Figure 8 shows an oil separator 1, which is characteristic is that in addition to the impeller 2 on the inflow side Forerunner 26 and downstream guide vanes 28 ' having.
- crankcase ventilation gas follows thereafter the precursor 26, which is already for a flow swirl of the crankcase ventilation gas in the sense of the drawn helical flow arrow provides.
- the blades 20 then continue in the flow direction of the impeller 2, which again here on a housing-fixed Shaft 17 rotatable with the help of plain bearings 24, 24 ' is stored.
- the oil precipitation and oil collection surface 15 Radially outside of the blades 20 is the inner surface the housing 10, the oil precipitation and oil collection surface 15, which is connected to the bottom of the oil outlet 16 is. Because the lower limit of the interior of the oil separator 1, which is formed by the housing 10, a continuous Inclines in the direction of flow also comes Oil that is already in the area of the precursor 26 on the has deposited inner surface of the housing 10, through the action of gravity and the rousing effect the gas flow to the outlet 16.
- the non-contact electrical Drive 3 can be seen, which is in its own housing part 18 is housed.
- a non-rotatable with a Motor shaft 31 of the motor 30 connected disc 32 in the an arrangement of permanent magnets 35 housed is. Opposite these permanent magnets 35 separated by a wall forming part of the housing 10, the permanent magnets 25 of the impeller 2.
- Figure 9 shows an embodiment of the oil separator 1, for which is characteristic of having heaters 6, 6 ' having.
- the housing 10 of the oil separator 1 again consists of two housing parts 11, 12, along a parting plane 10 'with each other are connected.
- the impeller 2 inside the housing 10 is here again on a shaft fixed to the housing 17 rotatably supported by means of slide bearings 24, 24 '.
- a Precursor 26 provided with a portion of the hub 21st the impeller 2 is connected. This part of the hub 21 is in turn firmly connected to the remaining impeller 2, for example welded.
- a first heating device 6 is on the outside on the bottom Part of the housing 10 in the field of oil precipitation and Oil collecting surface 15 is provided. With this, the surface 15 of the interior of the housing to which the oil is attached precipitates, which makes the oil more flowable and flows faster to outlet 16.
- a second heating device 6 ' is inside the housing Shaft 17 is provided and is used in the area the bearings 24, 24 'for lubrication of existing lubricants to heat and thereby the bearing friction in the bearings 24, 24 'to reduce. This will make the default Drive power reaches a higher speed of the impeller 2.
- FIG. 10 shows a section of an oil separator 1, in which an arrangement of adjustable in the inlet 13 Vorleitschaufeln 28 is provided.
- the arrangement includes In the example shown, a total of four guide vanes 28, the at a distance of 90 ° through the inlet 13 to the Axis of rotation 29 are arranged around and radially outwards point.
- An actuator 5 is used to adjust the guide vanes 28 in the form of an electric actuator, the above in Figure 10 is partially shown. Over a wave 50 becomes an adjustment movement caused by the actuator 5 on the individual guide vanes 28 synchronously transfer. So that there are no secondary flow paths for gases in the Inlet 13 in or out of inlet 13 in the area the shaft 50 can arise, this is a gas-tight Housing 51 sealed.
- the inflowing crankcase ventilation gas with a Flow swirl are applied to the further flow guidance in the area of the blades 20 of the impeller 2 favorably influenced.
- the impeller 2 is only in Figure 10 a small part located near the inlet 13 is visible.
- the housing-fixed shaft 17 on which the impeller 2 around its Axis of rotation 29 with the help of the bearing 24 'and visible here another, not visible bearing rotatably is.
- FIG 11 shows an embodiment of the oil separator 1, the partly in the valve cover 40 'of an associated internal combustion engine 4 is spatially integrated.
- the valve cover 40 ' are the inlet 13, the oil outlet 16 and the part of the housing receiving the impeller 2 is formed.
- the impeller 2 has a hub at its center 21, which merges to the left into a base plate 22. With the hub 21 and the base plate 22 are the blades 20 made in one piece. Also in here again the base plate 22, the permanent magnets 25 as the impeller side Part of the non-contact drive 3 attached.
- the electrical Line 34 can be supplied with electrical energy.
- the gas outlet 14 overflows part of its length through the outside of the valve cover 40 'lying part of the housing 10 of the oil separator 1.
- the free end of the gas outlet 14 is here as Hose connector designed to which a hose to continue the de-oiled crankcase ventilation gas can be connected.
- Figure 12 shows in its left and right halves two versions of the oil separator 1, each with a conventional oil separator 8 or 8 'connected in series are.
- the impeller 2 with its blades 20 lies within the housing 10, the axis of rotation 29 of the impeller 2 running vertically here.
- the inner surface of the housing 10 is also designed as an oil precipitation and oil collecting surface 15 and is connected to an oil outlet 16 visible at the top left in FIG.
- the outlet 14 for the cleaned crankcase ventilation gas is located at the top right on the top of the housing 10.
- the parts of the oil separator 1 described so far are identical for the two designs shown in FIG.
- the oil separator 1 shown in the left half of FIG. 12 is preceded by a knitted body 81 as a conventional oil separator 8, which is arranged in the interior of a pot-shaped lower housing part.
- the inlet 13 for the crankcase ventilation gas to be oiled opens laterally from the left into this lower housing part.
- the crankcase ventilation gas with its full volume flow must first flow through the knitted body 81, a first separation of oil droplets already taking place.
- the oil separated in the knitted fabric 81 flows downward under the action of gravity and flows out there via an oil drain 80, for example into the oil pan of an associated internal combustion engine.
- the upstream is in the right half of FIG conventional oil separator 8 'formed by a cyclone.
- a top right in the area of this cyclone lying tangential inlet 13 reaches the oil to be de-oiled Crankcase ventilation gas inside the oil separator 8 'and gets into a rotating vortex flow added. This already becomes part of the oil droplets thrown outwards by centrifugal force and separated. From the inner surface of the cyclone Oil separator 8 'flows the precipitated Oil gravitating down to the very bottom provided oil drain 80 '.
- crankcase ventilation gas passes through a central overflow opening Oil separator 8 'upwards in the area of the impeller 2, here too, on the one hand, for further oil separation and secondly, through its promotional effect for an abolition the differential pressure caused by the cyclone provides.
- Figure 13 shows two versions of a two-stage oil separator 1, with one version in the upper and is shown in the lower half of FIG.
- the two impellers 2 ', 2 are in a common housing 10 arranged, this one except for the transfer opening 113 closed partition between the two Impellers 2 ', 2 has.
- each impeller 2 ', 2 there is one each Oil precipitation and oil collection surface 15, the down out into an oil outlet 16 each.
- the second impeller 2 is in the execution of the oil separator 1 according to the lower half of Figure 13 with the Impeller 2 according to the upper half of Figure 13 identical.
- the gas outlet 14 for the cleaned crankcase ventilation gas is located at the top left in the area of the housing 10 and here has an axial outflow direction for the cleaned Gas.
- the outlet 14 can also be tangential start from the upper left area of the housing 10, as indicated by dashed lines above in Figure 13 is.
- Figure 14 shows a closed impeller 2, which is characteristic is that it has an air bearing.
- the impeller 2 has a hub part 21 which is concentric is arranged to the axis of rotation 29. With a curved one The course runs radially from the hub part 21 to the base disk 22 outward. The blades 20 follow this course, so that the axially flowing crankcase ventilation gases be deflected in a radial direction.
- a housing-fixed Shaft 17 Concentric to the axis of rotation 29 here is a housing-fixed Shaft 17 provided which is hollow in its interior and there forms an air duct 117. From this air duct 117 several cross bores 117 'go off to the outer circumference the shaft 17 lead. On the outer circumference of shaft 17 are sleeve-shaped bearings in the area of the transverse bores 117 ' 24, 24 'provided. By introducing compressed air through the air duct 117 and the transverse bores 117 'in the Gap area between the shaft 17 and the bearings 24, 24 ' an air cushion is formed there, which is particularly suitable for a low bearing friction ensures. So that is given at Driving force a particularly high speed of the Impeller 2 reached.
- Figures 15a and 15b show in longitudinal section and in Cross section two versions of the impeller 2 with one non-contact integrated in the area of the hub 21 Drive 3 with magnetic bearings for the impeller 2.
- the impeller 2 has a hub part in both versions 21, which faces the inlet on the left, the is not shown, tapered continuously. To the right the hub area 21 merges into the base disk 22. In the Transition area from the hub part 21 to the base disk 22 the blades 20 of the impeller 2 are arranged.
- the Impeller 2 is connected here to a rotatable shaft 17 ', the outside of the impeller in not shown here Way is rotatably mounted.
- the housing 10 forms a shaft 17 ' open receiving area for the coils 33, whereby here the coils 33 only with a small air gap of the shaft 17 are spaced.
- Figures 16a and 16b show the same representation like Figures 15a and 15b two other versions the impeller 2 with contactless electric drive Third
- the impeller 2 is again included in all versions an upstream rounded and otherwise hollow cylindrical Hub part 21 executed to the right in the base plate 22 merges.
- the blades 20 are with the hollow cylindrical part of the hub 21 and the base plate 22 formed in one piece.
- the arrangement is in the lower half of FIGS. 16a and 16b of the electromagnetic coils on the inside the hollow shaft 17 attached to the housing.
- Radially outside from the hollow shaft 17 there is another one sleeve-shaped arrangement of permanent magnets 25, the again with the inner circumference of the hollow hub part 21 of the impeller 2 is non-rotatably connected.
- FIG. 17 shows a section of an oil separator, the cutout the inlet 13 and a small part of the impeller 2 shows. It is essential here that within the inlet 13 an adjustable in its axial direction Throttle body 131 is arranged.
- Throttle body 131 is arranged within the inlet 13 in the upper and lower half of the Figure 17 shown in two different positions.
- the throttle body has in the lower half of FIG 131 assumed its opening position in which it followed on the left, i.e. towards the inlet 13, of the impeller 2 is moved away. This is the outer circumference of the throttle body 131 from an end edge 130 'of a concentric one Partition 130 removed. Radially inside of this concentric intermediate wall 130 runs the path of the crankcase ventilation gas in the area of the impeller 2. Outside this concentric partition 31 a ring channel 132 as a bypass channel that the area of the impeller 2 bypasses.
- Throttle body 131 On the left in FIG. 17 there is another in dashed lines alternative form of the adjustable throttle body as Throttle body 131 'indicated.
- the throttle body 131, 131 ' To guide the adjustable throttle body 131, 131 ' the shaft 17 from the impeller 2 to the left, that is, in the direction to the inlet 13, extended, the throttle body 131, 131 'is hollow at its center and so on the shaft 17 is axially displaceable.
- the throttle body 131, 131 ' forms in this embodiment thus a combined throttle and valve member 13 ''.
- the throttle body 131, 131 ' can be in the closed position, for example as a shut-off function to avoid unwanted Chimney effect when the internal combustion engine is at a standstill be used.
- Figure 18 shows an example of the interaction of a Oil separator 1 with an internal combustion engine 4 and associated other parts.
- the internal combustion engine 4 has a crankcase 40, from which a crankcase ventilation line 43 goes off. This line 43 leads to the inlet via a throttle element 13 ' 13 of the oil separator 1.
- the impeller 2 On the left of the oil separator 1 is the outlet 14 for the de-oiled crankcase ventilation gas arranged. Via another throttle element 14 ' the outlet 14 is connected to a further gas line 44.
- This gas line 44 opens into an intake line 41, through which the internal combustion engine 4 for the Air required for combustion is supplied. Through an exhaust pipe 42 the combustion exhaust gases leave the internal combustion engine 4th
- the oil outlet is located at the lower part of the oil separator 1 16, via an oil return line 45 to the crankcase 40 of the internal combustion engine 4 is connected. By this oil return line 45 becomes the separated oil returned the oil sump in the crankcase 40.
- the return line 19 instead of to the inlet 13 to The crankcase 40 of the internal combustion engine 4 can be guided. Even with this alternative route of the return line 19 is in the course of the check valve 19 ' Determination of the desired flow direction provided as is also indicated in dashed lines. In this version is a cleaning of the crankcase ventilation gas in a "larger" cycle that the Includes crankcase 40, possible. This mode of operation is e.g. after the internal combustion engine has been switched off 4 in a time-limited wake of the oil separator 1 meaningful.
- FIG. 18 also shows a regulating or control device 7, the electrical wiring with sensors and actuators is connected.
- Sensors can, for example Elements for detecting the speed of the impeller 2 or to record gas temperatures before or in or behind the oil separator 1 or for the detection of Gas pressures in front of or in or behind the oil separator 1 his.
- Actuators are actuators for the adjustable ones Throttle bodies 13 ', 14' and a variable drive of the impeller 2 of the oil separator 1, which by means of the control or control unit 7 in accordance with the measured values recorded in their desired state or condition Position can be influenced.
- the aim of these measures is, on the one hand, the greatest possible oil separation to reach from the crankcase ventilation gas and at the same time the pressure in the crankcase 40 of the internal combustion engine 4 to be kept within specified limits.
- the regulating or control device 7 can permanently connected, perceptible by a driver or only as part of an inspection and maintenance Diagnostic display to be connected and readable by the maintenance personnel 70 assigned.
- Figure 19 shows a schematic representation of an oil separator with two mutually identical oil separators 1, which are connected in parallel to each other.
- Each oil separator 1 again has an impeller 2 and one inlet 13 each for crankcase ventilation gas to be oiled, an outlet 14 for the de-oiled crankcase ventilation gas and an oil outlet 16 for the deposited Oil.
- the inlet 13 is each with a pipe section 43 'connected.
- every oil separator is each with a pipe section 41 'connected in turn via a line section 44 with the outlet 14 of the oil separator 1 is connected.
- the outlet 16 each oil separator 1 is each with a pipe section 45 'connected.
- the pipe sections 41 ', 43 'and 45' of the oil separator 1 connected in parallel run each in flight with each other and are at their Ends equipped with connecting flanges 141, 143, 145. About these connecting flanges 141, 143, 145 can any number of oil separators 1 to each other the oil separator with the desired number of oil separators 1 connected in parallel.
- Lines 41, 43, 45 can be seen, the line 43 from the crankcase of an associated internal combustion engine comes, line 41 to the intake tract of the internal combustion engine leads and the line 45 in the crankcase Internal combustion engine leads.
- the connecting flanges 141 on the far left 143, 145, to which no further oil separator 1 can be connected are to be closed with flange plates.
- the oil separators 1 according to FIG. 19 can also each a return line 19 between the outlet 14 and the Inlet 13 of the oil separator 1 may be provided.
- Figure 20 shows an embodiment of the oil separator 1 with an integrated brushless electric motor 30 as a drive 3 for the impeller 2. Since the motor 30 brushless In principle, none can be used here Electric motor 30 arise, so that the motor 30 in this Version in contact with crankcase ventilation gas can come without the risk of inflammation of the Crankcase ventilation gas as it passes through there is the oil separator 1.
- the oil separator 1 corresponds to FIG. 20 the oil separator already shown and described in FIG. 1 1.
- Figure 21 finally shows in a similar to Figure 6 Representation of an embodiment of the oil separator 1, the over the features already shown and explained in Figure 6 with a conditioning device 9 Is provided.
- the conditioning device 9 can be different Executions and thus have different functions.
- the first embodiment of the conditioning device 9 shows a feed connection 90, through which a gas or gases, for example a Noble gas, in the flow of the crankcase ventilation gas, through inlet 13 to impeller 2 of oil separator 1 flows, is admitted.
- a gas or gases for example a Noble gas
- the feed line connection opens 90 in the return line 19, which here between outlet 14 and inlet 13 for the crankcase ventilation gas is provided.
- a second embodiment of the conditioning device 9 comprises means for generating an electrostatic charge of the crankcase ventilation gas.
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
- daß das Ölabscheideelement ein Bauteil in Form eines mit Schaufeln bestückten, zugleich als Rotor und Verdichter wirkenden Laufrades ist, wobei durch das rotierende Laufrad das zuströmende Kurbelgehäuseentlüftungsgas in eine rotierende, mitgeführte Ölnebelpartikel mit einer Zentrifugalkraft beaufschlagenden Bewegung versetzbar ist und zugleich eine Förderwirkung auf das Kurbelgehäuseentlüftungsgas in einer Richtung vom Einlaß zum Auslaß des Ölabscheiders ausübbar ist.
- Figur 1
- einen ersten Ölabscheider im Längsschnitt,
- Figur 2
- den Ölabscheider aus Figur 1 nun in einer Ausstattung mit Sensoren und Aktoren und mit einem Regel- oder Steuergerät,
- Figur 3
- den Ölabscheider aus Figur 1 mit entferntem, in Figur 1 linkem Gehäuseteil, in Stirnansicht,
- Figur 4
- einen zweiten, zweistufigen Ölabscheider im Längsschnitt,
- Figur 5
- einen dritten, zweiflutigen Ölabscheider, ebenfalls im Längsschnitt,
- Figur 6
- einen mit einer Kurbelgehäuseentlüftungsgas-Rückführleitung ausgestatteten Ölabscheider in Ansicht, teils im Längsschnitt,
- Figur 7
- ein Laufrad als Teil eines Ölabscheiders in zwei Ausführungen, wobei die linke Hälfte und die rechte Hälfte der Figur 7 je eine Ausführung zeigen,
- Figur 8
- einen weiteren Ölabscheider, der zusätzlich zu dem Laufrad einen Vorläufer aufweist, wieder im Längsschnitt, teils in Ansicht,
- Figur 9
- einen weiteren Ölabscheider im Längsschnitt, der mit Heizeinrichtungen ausgestattet ist,
- Figur 10
- einen Ausschnitt aus einem Ölabscheider, der mit verstellbaren Vorleitschaufeln im Bereich seines Gaseinlasses ausgestattet ist, im Längsschnitt, teils in Seitenansicht,
- Figur 11
- einen Ölabscheider, bei dem ein Teil des Ölabscheidergehäuses durch einen Bereich eines Kurbelgehäuses einer zugehörigen Brennkraftmaschine gebildet ist, in Seitenansicht, teils im Längsschnitt,
- Figur 12
- in ihrer linken Hälfte und in ihrer rechten Hälfte zwei weitere, jeweils mit einem konventionellen Ölabscheider in Reihe geschaltete Ölabscheider, wieder teils im Längsschnitt, teils in Seitenansicht,
- Figur 13
- einen weiteren, zweistufigen Ölabscheider mit zusätzlichen Verdichterschaufeln auf einem seiner zwei Laufräder, wieder im Längsschnitt, teils in Ansicht,
- Figur 14
- ein Laufrad des Ölabscheiders, das mittels Luftlagern auf einer feststehenden Welle gelagert ist, im Längsschnitt,
- Figur 15a
- einen Ausschnitt aus einem Laufrad und dem Gehäuse eines Ölabscheiders mit zwei Ausführungen eines berührungslosen elektrischen Antriebes des Laufrades, im Längsschnitt,
- Figur 15b
- das Laufrad mit seinem Antrieb aus Figur 15a im Querschnitt gemäß der Linie XVb - XVb in Figur 15a,
- Figur 16a
- ebenfalls einen Ausschnitt aus einem Laufrad und einem Gehäuse eines Ölabscheiders mit zwei weiteren Ausführungen eines berührungslosen elektrischen Antriebes, wieder im Längsschnitt,
- Figur 16b
- einen Querschnitt durch das Laufrad mit seinem Antrieb gemäß der Schnittlinie XVIb - XVIb in Figur 16a,
- Figur 17
- den Gaseinlaß eines Ölabscheiders mit einem verstellbaren Drosselkörper, teils im Längsschnitt, teils in Ansicht, mit zwei unterschiedlichen Stellungen des Drosselkörpers,
- Figur 18
- eine schematische Darstellung eines Ölabscheiders mit einer zugehörigen Brennkraftmaschine, mit zugehörigen Gasführungskanälen und mit einem zugehörigen Regel- oder Steuergerät,
- Figur 19
- eine aus zwei identischen Ölabscheidern zusammengestellte modulare Ölabscheideeinrichtung,
- Figur 20
- einen Ölabscheider mit einem geänderten elektrischen Antrieb, im Längsschnitt, teils in Ansicht und
- Figur 21
- einen Ölabscheider, wieder teils im Längsschnitt, teils in Ansicht, der mit einer Konditionierungseinrichtung ausgestattet ist.
Alternativ kann der Einlaß 13 auch tangential angeordnet sein, wie durch gestrichelte Linien oben rechts von dem durchgehend gezeichneten Einlaß 13 angedeutet ist.
Dem in der linken Hälfte der Figur 12 gezeigte Ölabscheider 1 ist als konventioneller Ölabscheider 8 ein Gestrickkörper 81 vorgeschaltet, der im Inneren eines topfförmigen unteren Gehäuseteils angeordnet ist. Der Einlaß 13 für das zu entölende Kurbelgehäuseentlüftungsgas mündet seitlich von links her in diesen unteren Gehäuseteil. Auf seinem Weg in den Bereich des Laufrades 2 muß das Kurbelgehäuseentlüftungsgas mit seinem vollen Volumenstrom zunächst zwangsweise den Gestrickkörper 81 durchströmen, wobei schon eine erste Abscheidung von Öltröpfchen erfolgt. Das im Gestrickkörper 81 abgeschiedene Öl fließt unter Schwerkraftwirkung nach unten und dort über einen Ölabfluß 80 ab, beispielsweise in die Ölwanne einer zugehörigen Brennkraftmaschine.
Claims (30)
- Ölabscheider (1) für die Reinigung von Ölnebel enthaltendem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine (4), mit einem Gehäuse (10) mit einem Einlaß (13) für das Kurbelgehäuseentlüftungsgas, einem Auslaß (14) für das gereinigte Gas und einem Ölauslaß (16), wobei in dem Gehäuse (10) mindestens ein drehantreibbares, rotierendes Ölabscheideelement angeordnet ist und wobei eine innere Oberfläche eines das Ölabscheideelement radial außen umgebenden Wandbereichs des Gehäuses (10) als Ölniederschlags- und Ölsammelfläche (15) ausgebildet und mit dem Ölauslaß (16) verbunden ist,
dadurch gekennzeichnet,daß das Ölabscheideelement ein Bauteil in Form eines mit Schaufeln (20) bestückten, zugleich als Rotor und Verdichter wirkenden Laufrades (2) ist, wobei durch das rotierende Laufrad (2) das zuströmende Kurbelgehäuseentlüftungsgas in eine rotierende, mitgeführte Ölnebelpartikel mit einer Zentrifugalkraft beaufschlagenden Bewegung versetzbar ist und zugleich eine Förderwirkung auf das Kurbelgehäuseentlüftungsgas in einer Richtung vom Einlaß (13) zum Gasauslaß (14) des Ölabscheiders (1) ausübbar ist. - Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach Anspruch 1, dadurch gekennzeichnet, daß das rotierende Ölabscheideelement oder Laufrad (2) ohne Achsdurchführung nach außen im Inneren des abgesehen von den Ein- und Auslässen (13, 14, 16) dichten Gehäuses (10) gelagert und von einem außerhalb des vom Kurbelgehäuseentlüftungsgas durchströmten Inneren des Gehäuses (10) angeordneten Antrieb (3) berührungslos in Drehung versetzbar ist.
- Ölabscheider nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gehäuse (10) und das Laufrad (2) in der Form eines Radial- oder Axialverdichters oder in einer Mischform aus beiden ausgebildet sind.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieser in der Form eines mehrstufigen und/oder eines mehrflutigen Verdichters ausgebildet ist.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der berührungslose Antrieb (3) des Laufrades (2) eine Magnetkupplung (25, 35) oder eine Wirbelstromkupplung sowie einen elektrisch oder hydraulisch oder pneumatisch antreibbaren Motor (30) oder einen von der Brennkraftmaschine (4) abgeleiteten mechanischen Antrieb umfaßt.
- Ölabscheider nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der berührungslose Antrieb (3) des Laufrades (2) einen integrierten bürstenlosen Elektromotor (30) umfaßt.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Laufrad (2) mit einer konstanten Drehzahl antreibbar ist.
- Ölabscheider nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Laufrad (2) mit einer variablen, einem jeweils vorliegenden Betriebszustand der Brennkraftmaschine (4) angepaßten Drehzahl antreibbar ist.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im oder vor dem Einlaß (13) für das Kurbelgehäuseentlüftungsgas und/oder im oder hinter dem Auslaß (14) für das gereinigte Gas (je) ein verstellbares Drosselorgan (13', 14') oder (je) ein verstellbares kombiniertes Drossel- und Ventilorgan (13'') vorgesehen ist.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß vom Auslaß (14) für das gereinigte Gas eine Rückführleitung (19) abzweigt, die entweder zum Einlaß (13) für das Kurbelgehäuseentlüftungsgas oder in das Kurbelgehäuse (40) der zugehörigen Brennkraftmaschine (4) führt, wobei im Verlauf der Rückführleitung (19) ein verstellbares Drossel- oder Ventilorgan und/oder ein Rückschlagventil (19') angeordnet ist.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Laufrad (2) als offenes, schnellaufendes Laufrad ausgeführt ist.
- Ölabscheider nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Laufrad als geschlossenes Laufrad (2) mit einer Deckscheibe (122) ausgeführt ist.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Laufrad (2) zuströmseitig mit Vorläufern (26) ausgeführt ist.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß diesem ein oder mehrere andersartige, konventionelle Ölabscheider (8, 8') vor- oder nach- oder parallelgeschaltet sind.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Gehäuse (10) im Verlauf des Strömungsweges des Kurbelgehäuseentlüftungsgases ein feststehender und/oder ein mit dem rotierenden Ölabscheideelement oder Laufrad (2) rotierender Filterkörper (15', 27), vorzugsweise aus einem Schaumstoff oder einem Gestrick, angeordnet ist
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dem Laufrad (2) feststehende oder verstellbare Vorleitschaufeln (28) vorgeschaltet und/oder feststehende oder verstellbare Nachleitschaufeln (28') nachgeschaltet sind.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Laufrad (2) drehbar auf einer feststehenden Welle (17) oder fest auf einer drehbar gelagerten Welle (17') angeordnet ist, daß das Laufrad (2) fliegend oder gespannt gelagert ist und daß als Lager (24, 24') für die drehbare Lagerung des Laufrades (2) oder der Welle (17') mindestens ein Gleitlager oder Wälzlager oder Luftkissenlager oder Magnetlager vorgesehen ist.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Laufrad (2) beidseitig mit Schaufeln (20, 20') bestückt ist oder daß bei einseitig mit Schaufeln (20) bestücktem Laufrad (2) in diesem mindestens eine die mit Schaufeln (20) bestückte Seite des Laufrades (2) mit dessen anderer Seite verbindende Druckausgleichsöffnung (23) angebracht ist.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die mit dem Kurbelgehäuseentlüftungsgas und dem Öl in Kontakt tretenden Oberflächen des Gehäuses (10) und des rotierenden Ölabscheideelements oder Laufrades (2) mit einer Ablagerungen abweisenden Beschichtung versehen sind.
- Ölabscheider nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (10) mit zwei Gehäuseteilen (11, 12) mit einer in der Ölniederschlags- und Ölsammelfläche (15) umlaufenden Gehäusetrennebene (10') ausgeführt ist.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuse (10) mehrteilig ist und daß wenigstens ein Teil (12) des Gehäuses (10) als integraler Teil der zugehörigen Brennkraftmaschine (4), insbesondere von deren Kurbelgehäuse (40) oder Steuergehäuse oder Zylinderkopfhaube (40'), ausgebildet ist.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Ölabscheider (1) mit einer Heizeinrichtung (6) ausgestattet ist, die zum Erwärmen mindestens des als Ölniederschlags- und Ölsammelfläche (15) dienenden Wandbereichs des Gehäuses (10) und/oder zum Erwärmen eines das rotierende Ölabscheideelement oder Laufrad (2) lagernden Teils des Gehäuses (10) dient.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß diesem ein Regel- oder Steuergerät (7) zugeordnet ist, mit dem die Funktion des Ölabscheiders (1) zumindest durch Variation der Drehzahl des rotierenden Ölabscheideelements oder Laufrades (2) dem jeweils aktuellen Betriebszustand der Brennkraftmaschine (4), vorzugsweise durch Zugriff auf ein in einer elektronischen Motorsteuer- und - regeleinheit digital gespeichertes Motorkennfeld, anpaßbar ist.
- Ölabscheider nach Anspruch 23, dadurch gekennzeichnet, daß in oder an dem Ölabscheider (1) Sensoren (71, 71', 72, 72') vorgesehen sind, mit denen für den Betrieb des Ölabscheiders (1) relevante Parameter, insbesondere Ist-Drehzahl des rotierenden Ölabscheideelements oder Laufrades (2), Gasdruck vor und/oder hinter dem rotierenden Ölabscheideelement oder Laufrad (2), Gasvolumenstrom durch den Ölabscheider (1), Temperatur des zuströmenden Kurbelgehäuseentlüftungsgases und/oder des abströmenden Reingases und/oder des Ölabscheiders (1) selbst oder seines Antriebes(3), erfaßbar und an das Regel- oder Steuergerät (7) weitergebbar sind, und daß in oder an dem Ölabscheider (1) Aktoren (5) vorgesehen sind, mit denen den Betrieb des Ölabscheiders (1) beeinflussende verstellbare Organe, insbesondere der Antrieb (3) oder die Drosselorgane (13', 14') oder die Drossel- und Ventilorgane (13'') oder die Leitschaufeln (28), verstellbar sind.
- Ölabscheider nach dem Oberbegriff des Anspruchs 1 oder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieser eine physikalisch und/oder chemisch auf das durchströmende Kurbelgehäuseentlüftungsgas einwirkende Konditionierungseinrichtung (9) aufweist.
- Ölabscheider nach Anspruch 25, dadurch gekennzeichnet, daß mittels der Konditionierungseinrichtung (9) dem Kurbelgehäuseentlüftungsgas, das dem'Ölabscheider (1) zuströmt oder das den Ölabscheider (1) durchströmt oder das vom Ölabscheider (1) wegströmt, Gase, z.B. Edelgase, zuführbar sind.
- Ölabscheider nach Anspruch 25 oder 26, dadurch gekennzeichnet, daß mittels der Konditionierungseinrichtung (9) das Kurbelgehäuseentlüftungsgas, das den Ölabscheider (1) durchströmt, und/oder zumindest ein Teil des Ölabscheiders (1) in eine Ultraschallschwingung versetzbar ist.
- Ölabscheider nach Anspruch 25, 26 oder 27, dadurch gekennzeichnet, daß .mittels der Konditionierungseinrichtung (9) das Kurbelgehäuseentlüftungsgas, das den Ölabscheider (1) durchströmt, elektrostatisch aufladbar ist.
- Ölabscheideeinrichtung, dadurch gekennzeichnet, daß sie mehrere parallelgeschaltete Ölabscheider (1) nach einem der vorhergehenden Ansprüche umfaßt.
- Ölabscheideeinrichtung nach Anspruch 29, dadurch gekennzeichnet, daß die mehreren Ölabscheider (1) untereinander identisch sind und modulartig in einer gewünschten Anzahl miteinander verbindbar sind.
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Application Number | Priority Date | Filing Date | Title |
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DE20302824U DE20302824U1 (de) | 2003-02-21 | 2003-02-21 | Ölabscheider für die Reinigung von Ölnebel enthaltendem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine |
DE20302824U | 2003-02-21 |
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EP1464797A2 true EP1464797A2 (de) | 2004-10-06 |
EP1464797A3 EP1464797A3 (de) | 2005-10-05 |
EP1464797B1 EP1464797B1 (de) | 2007-05-02 |
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EP04003787A Expired - Fee Related EP1464797B1 (de) | 2003-02-21 | 2004-02-19 | Ölabscheider für die Reinigung von Ölnebel enthaltendem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101495720B (zh) * | 2006-05-29 | 2011-02-02 | 马勒国际有限公司 | 用于使曲轴箱通风的装置 |
CN101970814B (zh) * | 2008-03-18 | 2015-04-29 | 沃尔沃拉斯特瓦格纳公司 | 分离器的功能诊断方法 |
DE102009049024A1 (de) * | 2009-10-10 | 2011-04-14 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Absaugen von Gasen aus einem Tankentlüftungssystem |
DE102009049024B4 (de) | 2009-10-10 | 2018-03-08 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Absaugen von Gasen aus einem Tankentlüftungssystem |
DE102010015838A1 (de) * | 2010-04-20 | 2011-10-20 | Mann + Hummel Gmbh | Ölabscheider eines Entlüftungssystems |
US10801377B2 (en) | 2016-12-12 | 2020-10-13 | Hengst Se | Method for protecting a rotation separator from icing and a rotation separator |
WO2018108510A1 (de) * | 2016-12-12 | 2018-06-21 | Hengst Se | Verfahren zum schutz eines rotationsseparators gegen vereisung, und rotationsseparator |
CN109072739B (zh) * | 2016-12-12 | 2021-12-10 | 汉格斯特欧洲股份公司 | 用于保护旋转分离器以防结冰的方法以及旋转分离器 |
CN109072739A (zh) * | 2016-12-12 | 2018-12-21 | 亨格斯特欧洲股份公司 | 用于保护旋转分离器以防结冰的方法以及旋转分离器 |
WO2018145906A1 (de) * | 2017-02-07 | 2018-08-16 | Mahle International Gmbh | Abscheideeinrichtung |
CN109826940A (zh) * | 2017-11-23 | 2019-05-31 | 腓特烈斯港齿轮工厂股份公司 | 用于变速器壳体的导油装置以及变速器壳体 |
CN108757100A (zh) * | 2018-07-16 | 2018-11-06 | 安徽江淮纳威司达柴油发动机有限公司 | 一种防结冰的主动式油气分离装置 |
CN108757100B (zh) * | 2018-07-16 | 2023-05-02 | 安徽康明斯动力有限公司 | 一种防结冰的主动式油气分离装置 |
Also Published As
Publication number | Publication date |
---|---|
DE502004003656D1 (de) | 2007-06-14 |
EP1464797B1 (de) | 2007-05-02 |
DE20302824U1 (de) | 2004-07-08 |
EP1464797A3 (de) | 2005-10-05 |
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