EP1945922A2 - Device for ventilating the crank case of an internal combustion engine and for de-oiling the air extracted from said case - Google Patents
Device for ventilating the crank case of an internal combustion engine and for de-oiling the air extracted from said caseInfo
- Publication number
- EP1945922A2 EP1945922A2 EP06776911A EP06776911A EP1945922A2 EP 1945922 A2 EP1945922 A2 EP 1945922A2 EP 06776911 A EP06776911 A EP 06776911A EP 06776911 A EP06776911 A EP 06776911A EP 1945922 A2 EP1945922 A2 EP 1945922A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cyclone
- oil
- valve
- valve housing
- cyclones
- 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
- F01M13/02—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
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
- F01M13/023—Control valves in suction conduit
-
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/06—Polyamides, e.g. NYLON
Definitions
- the invention relates to a device for venting the crankcase of an internal combustion engine and for de-oiling the crankcase ventilation gas, with a pressure control valve and with an oil separator, wherein the ⁇ lab- separator in the form of a cyclone component with at least one raw gas inlet, with a single or more parallel cyclones and at least one Oil outlet is carried out, wherein the pressure control valve has a top side on the cyclone component sealingly mounted valve housing, wherein the cyclone / cyclone on the top side a cover with each cyclone a dip tube as clean gas outlet has /, flows through the purified gas in an inflow region in the valve housing, and wherein the valve housing comprises a clean gas discharge channel.
- the cyclone used for oil separation or the cyclones are provided on the upper side with a cover with a dip tubes as clean gas outlet for each cyclone.
- the cover is also made here as a separate item and sealingly connected to an upper end portion of the cyclone component, in particular glued or welded.
- the valve housing can be placed sealingly only after the separate attachment of the cover to the top of the cyclone component, so that there is also a relatively large number of items with a relatively large number of assembly steps and joining processes visible here.
- DE 197 07 597 A1 shows a device for the purpose stated above, wherein the device comprises an oil separator and a pressure regulating valve.
- the oil separator is here designed as a spiral and forms a lower part of the device, while the pressure regulating valve forms an upper part of the device.
- the pressure control valve is supported with its underside on an intermediate ring on which the oil separator is mounted with its top.
- the intermediate ring serves to hold the device to an associated internal combustion engine.
- the intermediate ring allows the attachment of differently sized in their diameters pressure control valves on the one hand and in their diameters differently sized oil separators on the other side.
- the present invention is based on the object, a device of the type mentioned above to improve that it can be made simpler, faster and thus more cost-effective without limiting the functions in a compact design.
- the object is achieved with a device of the type mentioned above in that the cover (s) with the dip tube (s) is an integral part of a valve housing integral with the valve housing bottom.
- the invention can be dispensed with a separate component as a cover of the cyclone or the cyclones, whereby at the same time the required space is reduced. It is further achieved with the invention that an otherwise required for the separate cover connection or joining process, such as welding process, for connecting the cyclone or the cyclones with the cover or covers omitted.
- a lower cost device is provided by the smaller number of items and the saved production cost.
- the cyclone component in the region of a cyclone component top and the valve housing in the region of its bottom either by a joining process, such as welding or adhesive joint connection, or by molding and / or frictional connection with a clamping or latching or screw connection are connected directly sealingly.
- the bottom of the valve housing is formed to a part of a lower wall portion of the clean gas discharge channel, said lower wall part wholly or for the most part lies in a region of the valve housing bottom in which no dip tube extends.
- This embodiment makes it possible to position a valve seat of the pressure control valve in a favorable position in the interior of the valve housing. At the same time, this arrangement is advantageous for production because it offers good mold removal.
- Another important advantage achieved with this embodiment of the device is that good accessibility from above is achieved for a connection device, in particular a welding device, for connecting the parts of the device.
- the device is integrated as a unit in another component of the internal combustion engine, the device with simultaneous production of one or more flow connections for raw gas, clean gas and / or oil sealing and positive and / or positive fit in a receiving opening in the other component can be inserted.
- the device can be connected as an external unit to the internal combustion engine, wherein the device with simultaneous production of one or more flow connections for raw gas, pure Gas and / or oil can be flanged sealingly to the internal combustion engine.
- the device can be designed differently according to the different specifications made by the associated internal combustion engine.
- the cyclone component is dimensionally completely within an outer diameter of the valve housing.
- the cyclone component comprises a single cyclone
- the cyclone, its dip tube and a valve seat of the pressure regulating valve are preferably arranged concentrically with respect to a longitudinal central axis of the device in the radial direction. This allows optimum space utilization with a maximum maximum internal diameter cyclone and thus maximum power under predetermined external dimensions of the device.
- the cyclones are preferably in the circumferential direction of the device spaced from each other and arranged in the radial direction of the device at the same distance from a central longitudinal axis of the device. This embodiment allows the accommodation of several cyclones each maximum size at given outer dimensions of the device.
- the cyclone component comprises a peripheral wall with a downwardly adjoining cup-like lower part, which forms an oil collecting space for oil flowing out of the cyclone / cyclones, which is connected via a discharge valve to the crankcase of the internal combustion engine.
- the drain valve is preferably functionally configured to automatically open and release the return or drain when suitable pressure conditions exist, and to close in other operating conditions.
- the invention proposes that the cyclone component in addition to the peripheral wall has a radially outwardly from this outer peripheral wall, wherein an annular gap between the Clearfangwand and the outer peripheral wall forms a first of the crankcase ventilation gas permeable ⁇ lvorabscheider.
- the thus formed ⁇ lvorabscheider separates from the flow of the crankcase ventilation gas therein possibly entrained coarse oil before it enters the cyclone or the cyclones and there disturbs their Abscheidefunktion for the finer oil mist.
- the cyclone component in addition to the outer peripheral wall comprises a downwardly adjoining cup-like outer lower part, which forms a second oil collecting space for flowing out of the ⁇ lvorabscheider oil, which is connected via a drain valve and / or a siphon with the crankcase of the internal combustion engine ,
- the oil separated from the oil pre-separator is continuously or discontinuously discharged from the second oil separator.
- derived collecting space expediently in the crankcase of the internal combustion engine.
- the oil collection chamber for expelled from the cyclone / cyclones oil is expedient connected via a valve to the second oil collection chamber and the second oil collection chamber with the crankcase of the internal combustion engine.
- a single oil return line is sufficient for the return of the separated oil from both oil collecting spaces.
- a cyclone, the peripheral wall and the outer peripheral wall comprehensive upper part of the cyclone component is integrally formed.
- Another contribution to a simple and cost-effective production is that preferably the one-piece upper part of the cyclone component comprising the cyclones, the peripheral wall and the outer peripheral wall and a lower part of the cyclone component comprising the lower part and the outer lower part in a single, substantially perpendicular to the longitudinal central axis of the device extending joining plane are connected by a single joining process in a joint tightly together.
- a reduced number of process steps is advantageously achieved, which speeds up the production.
- a development of the device provides that in this a pressure relief valve is integrated, by the exceeding of an upper pressure limit in the raw gas inlet, the crankcase ventilation gas, bypassing the cyclone / cyclones directly into the inflow rich pressure control valve is feasible. In this way, another important function is integrated into the device, resulting in enhanced functionality of the device.
- the pressure relief valve ensures that in the crankcase of the associated internal combustion engine, the gas pressure remains below technically and legally prescribed limits, even if an unusually large amount of crankcase ventilation gas accumulates.
- the pressure relief valve is spatially arranged next to the cyclone / cyclones and fluidly parallel to this / these.
- immovable parts of the pressure limiting valve are designed in one piece with the cyclone component and / or the valve housing bottom and that a gas transfer port of the pressure relief valve from the raw gas inlet to the inflow of the pressure control valve through an opening lying in the valve housing bottom is formed.
- the immovable parts of the pressure relief valve are here in particular a valve seat, a support for a valve spring and a guide for a valve body, which are advantageously integrated here and need not be specially installed. Built-in parts are then advantageous only the valve body and the valve spring.
- a suitable plastic for this purpose is polyamide or fiber-reinforced polyamide.
- FIG. 1 shows a device in a first embodiment in a vertical section
- FIG. 2 shows the device in a second embodiment in a cutaway perspective view
- FIG 5 shows the device of Figure 2 in plan view of a part of the device forming cyclone component.
- FIG. 1 of the drawing shows a first exemplary embodiment of a device 1 for venting the crankcase of an internal combustion engine and for de-oiling the crankcase ventilation gas.
- the device 1 comprises as essential parts in its upper region a pressure control valve 2 and in its lower region an oil separator third
- the oil separator 3 is here formed by a cyclone component 30 with a single cyclone 31.
- the cyclone 31 has an upper cylindrical portion 34 and a downwardly adjoining conical portion 35.
- In Height of the cylindrical portion 34 is a Rohgaseinlenfin 32 ', passes through the entölendes crankcase ventilation gas from the crankcase of the internal combustion engine, not shown here in the interior of the cyclone 31. Due to the flow of the crankcase ventilation gas, a vortex flow forms inside the cyclone 31, which causes entrained oil particles in the form of oil droplets to be moved outward by centrifugal force and deposited on the inner surface of the cyclone 31. From there, the precipitated oil flows under gravity through the conical portion 35 to an oil outlet 36 forming the lowermost portion of the cyclone 31.
- the cleared of the oil mist clean gas leaves the cyclone 31 through a clean gas outlet 33, which forms a central upper part of the cyclone 31 and is designed in the form of a dip tube 27.
- a clean gas outlet 33 On the upper side, the cyclone 31 is closed by a cover 37 with the exception of the clean gas outlet 33.
- the pressure regulating valve 2 is of a known type and has a valve housing 20 of substantially circular outline. On the underside, the valve housing 20 has a valve housing bottom 20 '. At the top of the valve housing 20, a control membrane 22 with an integrated support plate 22 'is sealingly clamped, with an upper-side valve housing cover 21 serving for clamping. A space above the control diaphragm 22 is connected to the outside atmosphere through the lid 21. The space under the control diaphragm 22 forms an inflow region 23. In this inflow region 23, the deoiled crankcase ventilation gas passes through the clean gas outlet 33.
- valve spring 26 which is supported on one side with a spring housing 26 'integrally with the valve housing 20, the actuating diaphragm 22 is preloaded with a force in the opening direction.
- a valve seat 24 is formed in the pressure control valve 2, which forms the beginning of a clean gas discharge channel 25.
- the cyclone component 30 and the cyclone 31 is initially open on the upper side and that the cover 37, including the dip tube 27 integral with the valve housing bottom 20 'is formed.
- a separate cover, which must be connected to the upper end region of the cyclone component 30, is omitted here. This achieves a reduction of the individual parts and a reduction in the assembly steps required during production.
- valve housing 20 and the cyclone member 30 are connected via a latching connection with not visible in the figure locking elements on the side of the valve housing and Gegenrastelemen- th on the side of the cyclone member 30, wherein the connecting here by simple axial Placed onto each other in the direction of the longitudinal central axis 10, in which the latching connections engage.
- the valve housing 20 and the cyclone component 30 are simultaneously sealed together without the interposition of separate seals.
- the example shown in Figure 1 of the device 1 is suitable for installation in a further component of an associated internal combustion engine, wherein the further component may be, for example, a cylinder head cover of the internal combustion engine.
- the further component may be, for example, a cylinder head cover of the internal combustion engine.
- a sealing ring 28 ' which is located at the level of the upper end of the cyclone component 30 and which is connected to the valve housing 20, the entire device 1 can be sealingly connected by axial insertion into an opening of suitable diameter with the other component of the internal combustion engine.
- the outer diameter of the cyclone component 30 is not greater than the outer diameter of the valve housing 20 and there is also no lateral offset between these two parts 20 and 30, which facilitates the installation of the device 1.
- Figures 2 to 5 of the drawing show a second embodiment of the device 1 for venting the crankcase of an internal combustion engine and for de-oiling the crankcase ventilation gas.
- FIG. 2 shows the second example of the device 1 in a perspective cutaway view.
- the upper part of the device 1 also forms a pressure regulating valve 2, while a lower part of the device 1 is formed by an oil separator 3.
- the oil separator 3 according to FIG. 2 has a total of three cyclones 31 for the separation of oil from the crankcase ventilation gas.
- the device 1, more precisely its oil separator 3, here also comprises an oil pre-separator. 4, which provides for the separation of coarse oil, that is larger oil droplets, from the incoming crankcase ventilation gas.
- the cyclone component 30 with the three cyclones 31 here has a circumferential wall 39 which surrounds the three cyclones 31 radially on the outside. Radially outside of the peripheral wall 39, an additional outer peripheral wall 39 'is further arranged.
- An interior of the lower part 49 forms a first oil collecting space 41, in which oil is collected, which emerges from the oil outlets 36 of the three cyclones 31. Radially outward therefrom, a second oil collecting space 42 is formed in the outer lower part 49 'in which the oil deposited in the oil preseparator 4 collects.
- a drain valve 43 for example in the form of a blade or meander valve, is provided, which automatically releases an oil drain from the oil collection chamber 41 into the oil collection chamber 42 in the presence of suitable, suitable pressure conditions.
- the total oil separated in the oil separator 3 can be removed and returned for example to the crankcase of the associated internal combustion engine, wherein in the course of the flow path to the crankcase expediently a siphon is provided.
- the upper part of the cyclone member 30, which consists of the three cyclones 31, the peripheral wall 39 and the outer peripheral wall 39 ', is an integral part which is injection-molded from plastic. It can also be seen that the lower part 49 and the outer lower part 49 'are also each produced as an injection molded part made of plastic.
- connection between the upper part of the cyclone component 30 on the one hand and the lower part 49 and the outer lower part 49 'on the other hand can be done here by means of a single joining process along a joint joint 5.2 by gluing or welding, which keeps the number of necessary joining processes low.
- the pressure control valve 2 corresponds in its individual parts and its construction to the pressure control valve 2 in the device 1 according to the first embodiment in Figure 1.
- the valve housing 20 On the underside also has in the example of Figure 2, the valve housing 20 a valve housing bottom 20 ', which here also a cover 37 for the on the upper side initially open cyclones 31 forms.
- a separate immersion tube 27 is formed in one piece in the cover 37 formed by the valve housing bottom 20 ', which respectively forms the clean gas outlet 33 for the associated cyclone 31 and opens into the inflow region 23 of the pressure control valve 2.
- a part of the valve housing bottom 20 ' is formed here by a lower wall portion 25' of the clean gas discharge channel 25, whereby an advantageous central arrangement of the valve seat 24 is made possible with a relatively simple releasability of the valve housing 20 when manufactured as an injection-molded plastic.
- the pressure control valve 2 is placed here with its valve housing bottom 20 'sealingly on the upper end portion of the cyclone component 30 and sealingly connected thereto by means of a joint connection 5.1, bonded or welded here expediently.
- the pre-cleaned crankcase ventilation gas enters from an upper end of the annular gap 40 by a respective Rohgaseinlledge 32 'in parallel flow in the three cyclones 31 and is in these of other entrained oil particles freed.
- the separated oil drips through an oil outlet 36 at the lower end of the conical part 35 of the cyclone 31 in the first oil collecting space 41st
- the in the cyclones 31 freed from the oil crankcase ventilation gas passes through the upper side of each cyclone 31 provided clean gas outlet 33 in the form of a dip tube 27 upwards in the inflow region 23 of the pressure control valve 2 over.
- crankcase ventilation gas flows depending on the position of the control diaphragm 22 relative to its valve seat 24 with a larger or smaller free cross section in the clean gas discharge passage 25. From there, the crankcase ventilation gas usually passes to the intake tract of the associated internal combustion engine.
- the active surface of the control diaphragm 22, the force of the valve - spring 26 and the diameter of the valve seat 24 are chosen and coordinated so that the crankcase, a certain lower pressure is not exceeded.
- the oil initially collected in the first oil collection chamber 41 passes at standstill of the associated internal combustion engine through the then opening drain valve 43 first into the second oil collection chamber 42 and from there with the possibly further collected there oil through the oil return line 44 back into the crankcase of the associated internal combustion engine.
- the device 1 has a compact, externally approximately cylindrical design, which allows easy placement, for example in the engine compartment of an internal combustion engine.
- For mounting the device 1 serve several mounting flanges 6, of which only one is visible in Figure 2.
- the supply of the raw gas, the discharge of the clean gas and the removal of the separated oil done either via directly flanged channels, such as here at the raw gas inlet 32, or by external lines, especially hoses, here, for example, to the clean gas discharge channel 25 and to the Oil return line 44 can be connected.
- the engine block of an associated Brennkrafttnaschine here expediently have a matching hole into which the formed as a sealed Einsteckstutzen raw gas inlet 32 in the attachment of the device 1 to the internal combustion engine can be inserted.
- FIG. 3 shows the device 1 from FIG. 2 in a vertical section. Above is also the pressure control valve 2 and below the associated oil separator. 3
- FIG. 2 In the right-hand middle area of FIG. 2, one of the three cyclones 31 is visible in vertical section along the section plane selected here.
- Figure 3 also illustrates that the cyclone 31 lying in the cyclone component 30 as well as the other two, not visible in Figure 3 cyclones 31 top side initially open.
- the top cover 37 of the cyclones 31 takes place only by connecting the pressure control valve 2 with the oil separator 3. It is also clear here that the top cover 37 is integrally formed with the respective dip tube 27 with the valve housing bottom 20 'of the valve housing 20 of the pressure control valve 2 ,
- the connection between the valve housing bottom 20 'and the upper end portion of the cyclone component 30 takes place here along the joint connection 5.1, which surrounds the cyclone 31, which is hinted in Figure 3.
- Figure 3 shows now all three mounting flanges 6, which serve to attach the device 1 to an associated internal combustion engine.
- a screw is passed through each mounting flange 6.
- the side facing away from the viewer in Figure 3 of the device 1 to the associated internal combustion engine With regard to the other visible in Figure 3 items and reference numerals, reference is made to the description of Figure 2.
- FIG. 4 shows the oil separator 3 as part of the device 1 according to FIGS. 2 and 3 in a cross section according to the section line IV-IV in FIG. 3.
- the clean gas inlet 32 which is directly connected to a bore of the associated internal combustion engine by plugging sealing.
- the raw gas inlet 32 merges into the annular gap 40, which forms the oil pre-separator 4.
- the flow of the crankcase venting gas runs from top to bottom through the raw gas inlet 32 and then clockwise through the annular gap 40.
- larger oil particles are first separated from the crankcase ventilation gas.
- FIG. 5 shows the oil separator 3 as part of the device 1 in a plan view without the pressure regulating valve 2 forming the upper part of the device 1, the orientation in FIG. 5 being identical to the orientation in FIG. Accordingly, the crude gas inlet 32 is visible in Figure 5 top right, but here is not cut in contrast to the figure, but can be seen in plan view.
- the cyclone component 30 forming the oil separator 3 is delimited by the outer peripheral wall 39 ';
- the circumferential wall 39 lying radially inwardly thereof is not visible here. Visible are radially inwardly of the outer peripheral wall 39 'on the side facing the viewer of the cyclone component 30, the three now still open at the top cyclones 31, in the center in the background each of the associated oil outlet 36 is located.
- a pressure limiting valve 7 can now be seen in FIG. 5, which, in addition to the cyclones 31, is also arranged in the cyclone component 30 in the circumferential direction with respect to these.
- the pressure relief valve comprises a vertically, that is movable in Figure 5 perpendicular to the plane of the valve body 70 which is biased with a valve spring 71 in the closing direction, that is towards the cyclone member 30, and with an integrally formed with the cyclone member 30, here concealed valve seat interacts.
- the pressure limiting valve 7 can be at an upper pressure limit value crankcase ventilation gas, bypassing the cyclone 31 from the raw gas inlet 32 and from the annular gap 40 directly into the not visible in Figure 5, in the Figures 2 and 3 shown inflow 23 of the pressure control valve 2 are guided. As a result, impermissibly high pressures in the crankcase of the internal combustion engine are avoided.
- the cyclones 31 are initially still open at the top, as shown in FIG. Likewise, an area in which the pressure relief valve 7 is arranged, initially still open towards the top, as long as the pressure control valve 2 is not connected to the cyclone component 30.
- the joint connection 5.1 is shown in each case by triple lines.
- the cyclone component 30 visible in FIG. 5 is sealingly connected to one another at its upper side and the valve housing bottom 20 ', not shown in FIG. 5, on its underside, in particular adhesively bonded or welded.
- each individual cyclone 31 is surrounded by a contour of the joint connection 5.1 and since the region in which the pressure relief valve 7 is surrounded by the joint 5.1, disturbing cross flows between the cyclones or between the pressure relief valve 7 and the adjacent cyclone 31und erroneous flows to the outside from the cyclones 31 or vice versa from outside to inside the cyclone 31 safely avoided. This ensures a reliable and trouble-free operation of the cyclone 31 and the pressure relief valve. 7
- valve 29 denotes an opening which connects the inflow region 23 (see FIGS 2 and 3) with the first ⁇ lsam- space 41 (see Fig. 2 and 3) and the outflow of possibly in the inflow region 23 oil passed, which precipitates and collects there, made possible in the oil collection chamber 41, before this oil can leave the pressure control valve 2 with the clean gas flow.
- the position of the valve seat 24 is indicated in dashed lines, which is above the visible in Figure 5 end face of the cyclone component 30 in the valve housing 20, which is not present here.
- the course of the clean gas discharge channel 25 is indicated on the left in Figure 5 in dashed lines, which is also part of the valve housing 20.
- the valve seat 24 and the clean gas discharge channel 25 are clearly visible outside of the area occupied by the cyclones 31 and the pressure relief valve 7.
- the joining of the cyclone component 30 with the valve housing along the contour of the joint connection 5.1 represented by the triple lines can therefore be unimpeded by means of a joining device, in particular a welding device, guided from above to the top of the cyclone component 30 visible in FIG.
- This embodiment of the joint connection 5.1 also leads advantageously to a simplified leak test, because now in a single test both the overall tightness of the device 1 and the tightness of the cyclones 31 can be tested. Thus, a test step is sufficient, where previously two test steps were necessary.
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 |
---|---|---|---|
DE202005013112U DE202005013112U1 (en) | 2005-08-17 | 2005-08-17 | Oil separator for separating oil from the crankcase ventilation gas of an internal combustion engine |
PCT/EP2006/008106 WO2007020084A2 (en) | 2005-08-17 | 2006-08-17 | Device for ventilating the crank case of an internal combustion engine and for de-oiling the air extracted from said case |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1945922A2 true EP1945922A2 (en) | 2008-07-23 |
EP1945922B1 EP1945922B1 (en) | 2011-10-05 |
Family
ID=37440972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06776911A Active EP1945922B1 (en) | 2005-08-17 | 2006-08-17 | Device for ventilating the crank case of an internal combustion engine and for de-oiling the air extracted from said case |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1945922B1 (en) |
AT (1) | ATE527440T1 (en) |
DE (1) | DE202005013112U1 (en) |
WO (1) | WO2007020084A2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006011992U1 (en) * | 2006-08-03 | 2007-12-20 | Mann + Hummel Gmbh | Housing for a crankcase ventilation device |
JP4510108B2 (en) * | 2008-03-13 | 2010-07-21 | 小島プレス工業株式会社 | Oil separator for blow-by gas |
DE102010027785B4 (en) * | 2010-04-15 | 2020-12-03 | Hengst Se | Oil mist separator with a housing with a removable cover |
DE102010053922B3 (en) * | 2010-12-09 | 2012-04-19 | Rt-Filtertechnik Gmbh | Device for separating media |
EP3156114B1 (en) | 2015-10-14 | 2018-04-04 | Alfdex AB | A separator arrangement for cleaning gas |
DE102016211265B4 (en) * | 2016-06-23 | 2018-01-04 | Polytec Plastics Germany Gmbh & Co. Kg | Flow control valve |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19647256A1 (en) * | 1996-11-15 | 1998-05-20 | Mann & Hummel Filter | Device for returning liquids in gas flows |
DE29724866U1 (en) * | 1997-01-22 | 2004-12-02 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Internal combustion engine with valve chamber cover - has pressure regulating valve for gases blown through, and spray protector made of thermoplastic |
DE19707587B4 (en) | 1997-02-26 | 2005-12-22 | Robert Bosch Gmbh | Electromagnetic actuator |
DE19707597A1 (en) * | 1997-02-26 | 1998-08-27 | Knecht Filterwerke Gmbh | Cyclone with ventilating valve behind it in flow direction |
DE19923093A1 (en) * | 1999-05-20 | 2000-11-23 | Mann & Hummel Filter | Fluid separator for purifying IC engine crankshaft gases has a separator cartridge with an elastic end plate on at least one of its front sides corresponding to a receiver |
DE10122994C2 (en) * | 2001-05-11 | 2003-08-07 | Montaplast Gmbh | Cyclone separator using the inlet opening as a drain opening |
JP3923288B2 (en) * | 2001-08-06 | 2007-05-30 | 本田技研工業株式会社 | Engine gas-liquid separator |
DE20211329U1 (en) * | 2002-07-26 | 2003-12-04 | Hengst Gmbh & Co.Kg | Oil separator for separating oil from the crankcase ventilation gas of an internal combustion engine |
DE10301028A1 (en) * | 2003-01-14 | 2004-07-29 | Alfmeier Präzision AG | Ventilation valve for a crank housing with an integrated cyclone separator comprises a valve chamber defined on one side by a membrane and on the opposite-lying side by a separating wall |
DE20302220U1 (en) * | 2003-02-11 | 2004-06-24 | Hengst Gmbh & Co.Kg | Oil separator for de-oiling internal combustion engine crankcase venting gases has oil separation insert in form of cyclone part for insertion into unaltered housing instead of mesh body |
DE10323343B4 (en) * | 2003-08-19 | 2016-06-16 | Mann + Hummel Gmbh | Separator and its use |
DE102004002310A1 (en) * | 2004-01-16 | 2005-08-04 | Robert Bosch Gmbh | Device for separating liquid from a gas stream |
DE102004004753A1 (en) * | 2004-01-30 | 2005-08-18 | Mann + Hummel Gmbh | Cylinder head cover |
DE202004010550U1 (en) * | 2004-07-06 | 2005-11-17 | Hengst Gmbh & Co.Kg | Device for regulating the pressure in the crankcase of an internal combustion engine and for the oil mist separation from the crankcase ventilation gas |
-
2005
- 2005-08-17 DE DE202005013112U patent/DE202005013112U1/en not_active Expired - Lifetime
-
2006
- 2006-08-17 AT AT06776911T patent/ATE527440T1/en active
- 2006-08-17 WO PCT/EP2006/008106 patent/WO2007020084A2/en active Application Filing
- 2006-08-17 EP EP06776911A patent/EP1945922B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007020084A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE202005013112U1 (en) | 2006-12-28 |
ATE527440T1 (en) | 2011-10-15 |
WO2007020084A2 (en) | 2007-02-22 |
WO2007020084A3 (en) | 2007-05-10 |
EP1945922B1 (en) | 2011-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1559876B1 (en) | Cylinder head cover | |
DE602004006277T2 (en) | FILTER ARRANGEMENT WITH BLEED FILTER ELEMENT | |
US7614390B2 (en) | Two stage drainage gas-liquid separator | |
DE102011106593B4 (en) | Housing for an internal combustion engine and a positive crankcase ventilation PCV valve attached to the housing, and a method of attaching a PCV valve to a housing | |
EP1945922B1 (en) | Device for ventilating the crank case of an internal combustion engine and for de-oiling the air extracted from said case | |
DE102005063274B4 (en) | oil separator | |
DE102016006095A1 (en) | Separation module, line module and ventilation device | |
DE10235983A1 (en) | Air-oil separator for an engine | |
WO2002095211A1 (en) | Method for evacuating water that has been separated in a fuel filter and a device for carrying out said method | |
WO2014202358A1 (en) | Hollow filter element, filter housing and filter | |
WO2014082762A1 (en) | Filter, filter element, filter housing and discharge device of a filter | |
EP0730086B1 (en) | Cyclone separator for the crankcase ventilation of an internal combustion engine with a ventilation valve | |
WO2017129417A1 (en) | Housing, fluid outlet seal part, housing cover, connection part of a device for separating at least one fluid from gas, and device and apparatus for separating a fluid | |
EP2353692A2 (en) | Filter device | |
DE112014005489B4 (en) | Filter device, in particular liquid filter, filter element and adapter part | |
EP1210165B1 (en) | Filter with a valve combination component | |
DE19621935C2 (en) | Ventilation system for blow-by gases from the crankcase interior of internal combustion engines | |
DE19507202C2 (en) | Vent valve | |
DE102013013487A1 (en) | Liquid filter, in particular fuel filter | |
EP3691769B1 (en) | Filter element with venting function for suspension on a filter head, and filter system | |
WO2020064204A1 (en) | Air de-oiling insert for an air de-oiling device and air de-oiling device | |
DE102016000339B4 (en) | Filter element and filter system for a liquid medium with ventilation on the clean and raw side | |
DE102010027787A1 (en) | Oil mist separator for crank case ventilation device of internal-combustion engine, has separator housing, separation element arranged in housing and cover for removable closing of housing | |
DE20302220U1 (en) | Oil separator for de-oiling internal combustion engine crankcase venting gases has oil separation insert in form of cyclone part for insertion into unaltered housing instead of mesh body | |
DE19644526C2 (en) | Ventilation device for a crankcase of an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080317 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20091008 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
DAX | Request for extension of the european patent (deleted) | ||
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502006010357 Country of ref document: DE Effective date: 20111201 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20111005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20111005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120205 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120206 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120106 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120105 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 |
|
26N | No opposition filed |
Effective date: 20120706 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006010357 Country of ref document: DE Effective date: 20120706 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20120823 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20121015 Year of fee payment: 7 |
|
BERE | Be: lapsed |
Owner name: HENGST G.M.B.H. & CO. KG Effective date: 20120831 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20120817 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120116 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120817 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 527440 Country of ref document: AT Kind code of ref document: T Effective date: 20120831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111005 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140301 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006010357 Country of ref document: DE Effective date: 20140301 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20140430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120817 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060817 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130902 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120810 Year of fee payment: 7 |
|
PGRI | Patent reinstated in contracting state [announced from national office to epo] |
Ref country code: IT Effective date: 20150701 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20130817 |
|
PGRI | Patent reinstated in contracting state [announced from national office to epo] |
Ref country code: IT Effective date: 20150701 |