EP3408508A1 - Vorrichtung und verfahren zur entlüftung eines kurbelgehäuses einer brennkraftmaschine - Google Patents
Vorrichtung und verfahren zur entlüftung eines kurbelgehäuses einer brennkraftmaschineInfo
- Publication number
- EP3408508A1 EP3408508A1 EP17701994.0A EP17701994A EP3408508A1 EP 3408508 A1 EP3408508 A1 EP 3408508A1 EP 17701994 A EP17701994 A EP 17701994A EP 3408508 A1 EP3408508 A1 EP 3408508A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- oil
- venting
- channel
- 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
- F01M13/0011—Breather valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
- F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
- F01M11/065—Position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/0044—Layout of crankcase breathing systems with one or more valves
Definitions
- the invention relates to a device for venting a crankcase of an internal combustion engine according to the preamble of claim 1, a method for venting a crankcase of an internal combustion engine according to the preamble of claim 14 and a vehicle, in particular a commercial vehicle, with the device and / or to carry out the method according to claim 15.
- crankcase ventilation with a plurality of ventilation channels, wherein opening into the crankcase of the engine gas inlet openings of the plurality of ventilation channels are arranged such that regardless of the inclination or orientation of the internal combustion engine always at least one vent channel not with its gas inlet opening do not immerse in the oil pan oil.
- crankcase ventilation is known in which at one, a vehicle transmission facing clutch side of a crankcase and on one of the clutch side opposite end side of the crankcase in each case a projecting into a crankcase of the crankcase vent line for venting the crankcase is arranged.
- This arrangement of the vent lines ensures that when driving uphill and downhill with a vehicle having the vehicle at least one vent line with its gas inlet opening is always above the oil level of accumulated in an oil pan of the engine oil. This ensures that the crankcase is vented reliably even uphill and downhill.
- the object of the invention is therefore to provide a device and a method for venting a crankcase of an internal combustion engine for a vehicle, in particular for a commercial vehicle, by means of which reliably ensures the function of the crankcase ventilation and at the same time prevents the introduction of oil into the intake tract of the internal combustion engine ,
- This object is solved by the features of the independent claims. Preferred developments are disclosed in the subclaims.
- a control device is provided by means of which, in particular for preventing the introduction of oil pan oil into the intake tract, a fluid flow through the ventilation channels in dependence on the inclination of the internal combustion engine, in particular automatically or automatically, fluidically shut off and released, wherein the Control device in the first tilt position of the internal combustion engine releases the first vent channel and shuts off the second vent channel, and wherein the control device releases the second vent channel in the second tilt position of the internal combustion engine and shuts off the first vent channel.
- crankcase ventilation is reliably ensured, since both in the first and in the second tilt position of the internal combustion engine always a vent channel with its gas inlet opening is not immersed in the oil pan oil and the fluid flow through the not in the oil pan oil submerged venting channel by means of the control device is released.
- an introduction of larger amounts of oil into the intake tract of the internal combustion engine is prevented by the inventive device, since both in the first and in the second tilt position of the engine, the fluid flow is blocked by the immersed in the oil pan oil vent channel by means of the control device.
- the term "inclination position" is here to be understood explicitly in a broad sense, for example, the first or the second tilt position of the internal combustion engine may be formed by a basic position of the internal combustion engine in which the internal combustion engine is located when the vehicle having the internal combustion engine Likewise, however, the first or the second inclination position can also be formed by a position of the internal combustion engine in which the internal combustion engine is rotated or pivoted in comparison with the basic position mentioned
- the device according to the invention is not limited to a construction with two venting channels opening into the crankcase Crank opening channels may be provided for venting the crankcase.
- the gases flowing into the crankcase space are conducted into the intake tract of the internal combustion engine by means of the ventilation ducts, starting from the crankcase space.
- the gases flowing into the crankcase space are also conducted by means of the ventilation channels directly into the open or in the vicinity of the device, so that an "open" vent is realized.
- the gas inlet openings of the plurality of ventilation channels are arranged such that regardless of the inclination or orientation of the internal combustion engine always at least one venting channel is not immersed in the oil pan oil. In this way, the function of the crankcase ventilation is ensured particularly reliable.
- At least one oil separator element is provided upstream of the intake tract, by means of which oil can be separated from the fluid flowing into the intake tract via the ventilation channels.
- an oil separator element prevents no oil from entering the intake tract via the ventilation channels.
- the control device in the first inclination position of the internal combustion engine shuts off a fluid flow through the second venting channel to the at least one oil separator element and shuts off a fluid flow through the first venting channel towards the at least one oil separator element in the second inclination position of the internal combustion engine , In this way it is prevented that the oil separator element is supplied with such a large amount of oil that it is overloaded or can not adequately deposit the oil.
- the control device has a first shutoff valve for shutting off and releasing the first venting channel and a second shutoff valve for shutting off and releasing the second venting channel.
- a first shutoff valve for shutting off and releasing the first venting channel
- a second shutoff valve for shutting off and releasing the second venting channel.
- the first and / or the second check valve for example, seen in the fluid flow direction, downstream of the at least one oil separator Elements can be arranged.
- the first and / or the second check valve, viewed in the fluid flow direction, upstream of the at least one oil separator element is arranged to counteract an overload of the at least one oil separator element when the respective vent channel with its gas Inlet hole immersed in the oil pan oil.
- the first and / or the second shut-off valve are preferably associated with a cylinder head, in particular a cylinder head cover, of the internal combustion engine in order to realize a simple and maintenance-friendly construction.
- the first and / or the second shut-off valve can also be assigned to the crankcase of the internal combustion engine in order to ensure that the smallest possible amount of oil flows into the respective venting channel when it dips into the sump oil. This has the advantage, inter alia, that the oil level in the oil sump is kept higher and counteracts an "oil level Iiegen" an intake opening of an oil pump of the internal combustion engine.
- the first check valve is arranged in a defined near zone in the region of the gas inlet opening of the first venting channel.
- the second shut-off valve may be arranged in a defined near zone in the region of the gas inlet opening of the second venting channel.
- the first shut-off valve and at least one oil separator element form a structural unit or assembly unit. As a result, the assembly of the first shut-off valve and the at least one oil separator element is significantly simplified.
- the second shut-off valve and at least the oil separator element form a structural unit.
- first shut-off valve, the second shut-off valve and at least one oil separator element form a structural unit, To further simplify assembly and to realize a particularly compact design.
- the first or the second shut-off valve can be arranged, for example, at an oil inlet area or at an oil outlet area of the structural unit.
- the control device has a tilt detection device, by means of which the current inclination or orientation of the internal combustion engine can be detected, wherein the first and / or the second shut-off valve by means of a control device of the control device depending on the detected current inclination of the internal combustion engine or can be automatically activated or actuated to shut off or release the respective venting channel.
- a fluid flow through the ventilation channels reliably and easily be shut off and released in terms of fluid flow as a function of the current inclination of the internal combustion engine.
- the inclination detecting device is formed by at least one oil quantity sensor, by means of which the amount of oil flowing through the first and / or the second venting channel can be measured.
- the current inclination of the internal combustion engine can be estimated with sufficient accuracy, since in the event that a vent channel is immersed in the oil pan oil, a significantly larger amount of oil is conveyed through the respective vent channel, as in the case that the respective Discharge duct is not immersed in the oil pan oil.
- it can also be detected by means of such an oil quantity sensor regardless of a dipping of the respective venting channel in the oil pan oil, if an excessive amount of oil flows through the respective venting channel.
- the introduction of a large amount of oil into the intake tract is particularly reliably prevented.
- the amount of oil flowing through the venting channel can be determined, for example, by the density of the fluid flowing through the venting channel or by the proportion of oil in the fluid flowing through the venting channel.
- the inclination detecting means may be constituted by an oil level sensor by means of which the level of the oil pan oil accumulated in the oil pan can be measured. From the level of the sump oil accumulated in the sump, the current inclination or orientation of the internal combustion engine can also be reliably estimated.
- the tilt detection device can also be formed by an inclination sensor, by means of which the inclination or the orientation of the internal combustion engine can be measured. Such a tilt sensor may be formed for example by an acceleration sensor.
- the first and / or second shut-off valve may also be formed by a float valve in order to form the first or the second shut-off valve in a particularly rapid reaction.
- a float body of the float valve is designed as a sealing element, which can be pressed to block the fluid flow through the respective vent channel against a corresponding sealing seat and releases a defined flow cross-section to release the fluid flow through the respective vent channel.
- the float valve at least one clamping element, in particular a spring element which biases the arranged in its closed position float body in its open position.
- a clamping element By means of such a clamping element is reliably ensured that the float valve always opens and closes as desired. In particular, it can be prevented by means of the clamping element that the float valve closes even at higher gas flow rates.
- the float valve is disposed in a U-leg of a substantially U-shaped vent passage section whose U-base at least one bottom wall-side oil drain opening for discharging in the U-base and / or in the U-legs has accumulated oil.
- the labyrinth-like, U-shaped vent passage section acts as a coarse separator for the flowing through the vent passage oil.
- the first and / or the second check valve may also have a sealing body with a defined flow contour, which is pressed by the fluid flow against a corresponding sealing seat to block the fluid flow through the respective vent channel and to release the Fluid flow through the respective vent passage a defined flow cross section releases.
- the first and the second shut-off valve can also be formed particularly responsive and reliable. The sealing body can then be pressed against the corresponding sealing seat by the fluid flowing through the ventilation channel, for example, when the quantity of oil flowing through the ventilation channel exceeds a defined oil quantity limit value.
- the sealing element can then release a defined flow cross section again.
- the release and shut-off of the venting channel is thus dependent on the pulse or of the dynamic pressure which is exerted on the sealing body by means of the fluid flow. This pressure increases with increasing flow velocity and increasing density of the fluid flow.
- the oil quantity limit is formed by a defined gas-oil ratio.
- the sealing element is spherical and / or plate-shaped and / or has a defined flow resistance value or Cw value.
- At least one clamping element in particular a spring element, is provided, which biases the sealing body arranged in its closed position into its open position in order to always be able to release and shut off the respective ventilation channel as desired by means of the sealing body.
- the sealing body provided in the fluid flow direction, immediately upstream of at least one active or drivable ⁇ labscheider- element, in particular a centrifuge or a Tellerseparators arranged.
- the first and / or the second shut-off valve may also have a relative to the respective vent channel rotatable about an axis fixed locking element which releases the respective vent channel in a first rotational position and shuts off the respective vent channel in a second rotational position in that the blocking element is connected via at least one lever element to a counterweight element having a defined mass, such that the blocking element always has the same orientation relative to the horizontal regardless of the inclination of the internal combustion engine about a tilt axis extending in the direction of rotation axis.
- the at least one check valve is formed by a throttle valve and / or by a rotary valve.
- a method for venting a crankcase of an internal combustion engine for a vehicle, in particular for a commercial vehicle, claimed, with a plurality of ventilation channels, by means of which in a crankcase space of the crankcase incoming gases are led out of the crankcase space again are preferably conducted starting from the crankcase space in an intake tract of the internal combustion engine, wherein opening into the crankcase space gas inlet openings of the plurality of ventilation channels are arranged such that in a first defined tilt position of the engine, a first venting duct with its gas inlet opening not immersed in, accumulated in an oil pan of the internal combustion engine oil pan oil, wherein in a different from the first tilt position second defined tilt position of the Internal combustion engine, the first venting duct with its gas inlet opening in the oil pan oil immersed and the second venting channel with its gas inlet opening is not immersed in the oil pan oil
- a control device is provided, by means of which, in particular for preventing the introduction of oil pan oil into the intake tract, a fluid flow through the ventilation channels in dependence on the inclination of the internal combustion engine, in particular automatically or automatically, fluidically shut off and released, wherein the control device in the first tilt position of the internal combustion engine releases the first vent channel and the second vent channel shuts off, and wherein the control device releases the second vent channel in the second tilt position of the internal combustion engine and shuts off the first vent channel.
- a vehicle in particular a commercial vehicle, with the device according to the invention and / or for carrying out the method according to the invention claimed.
- the vehicle is preferably formed by a vehicle which is exposed to increased longitudinal and / or lateral acceleration, since the device according to the invention or the method according to the invention is particularly effective here.
- a vehicle may be formed, for example, by off-road vehicle or by a ship.
- 1 is a schematic representation showing the structure of a first
- FIG. 2 to 11 representations of FIG. 1, from which the structure of another
- FIG. 12 is a circuit diagram showing the structure of a first
- 13 and 14 is a schematic representation of the structure of a second
- 15 and 16 is a schematic representation of the structure of a third
- Fig. 7 and 18 are schematic representations; from which the construction of a fourth
- Embodiment of the control device is apparent.
- a first embodiment of a device 1 is shown.
- the device 1 has an example here as a series motor trained internal combustion engine 3, which includes an oil pan 5, a crankcase 7, a cylinder head 9 and a cylinder head cover 11.
- the device 1 several, here three exemplary, venting channels or vent lines 13, 15, 17, by means of which in a crank chamber 19 of the crankcase 7 incoming gases, in particular blow-by gases, in a direction indicated by dashed lines intake system 21 of Internal combustion engine 3 can be passed.
- the gases flowing into the crank chamber 19 can also be conducted directly into the open or into the surroundings of the internal combustion engine 3, if the gases are cleaned or cleaned before being introduced into the open air with a suitable cleaning device.
- venting channels 13, 15 are formed here by way of example by pipelines, which are each combined with an end region to the crankcase 7 and with its other end region at a junction region 27 to the here also designed as a pipeline vent passage 17.
- Gas inlet openings 29 of the venting channels 13, 15 are here, seen in the engine transverse direction y, arranged opposite each other on the outside of the crankcase 7.
- the gas inlet openings 29 of the ventilation channels 13, 15 are here also arranged such that in defined first tilt positions of the engine, the vent passage 13 with its gas inlet opening 29 is not immersed in the oil pan 5 accumulated in oil sump oil and the vent passage 15 with its gas inlet opening 29 dips into the accumulated in the oil pan 5 oil pan oil. In defined second inclination positions of the internal combustion engine 3, however, the ventilation channel 13 emerges with its gas Inlet opening 29 in the oil pan oil, while the vent passage 15 is not immersed here then with its gas inlet opening 29 in the oil pan oil.
- a venting valve 31 and the venting channel 15 are assigned a check valve 33 to the venting channel 13.
- a fluid flow through the respective vent channel 13, 15 shut off and released.
- an oil separator element 35 is here associated with the venting channel 17, by means of which oil or engine oil can be separated from the fluid flowing through the venting channel 17. The separated oil is then introduced into the oil pan 5 again. Further, the check valves 31, 33 and the oil separator element 35 form a unit 36 here.
- the operation of the check valves 31, 33 takes place here in dependence on the inclination of the engine 3. Specifically, in the already mentioned first inclination positions of the engine 3, for example, from an inclination of 20 ° of the internal combustion engine in a first direction about the longitudinal axis, the vent channel 13 is released by means of the check valve 31 and the vent passage 15 is shut off by means of the check valve 33.
- the vent passage 15 is released by the check valve 33 and the vent passage 13 shut off by means of the check valve 31 , In this way, it is reliably ensured that the oil pan oil is not conducted or conveyed into the intake tract 21 of the internal combustion engine 3 via a venting channel 13, 15 immersed in the oil pan oil.
- Exemplary embodiments of the check valves 31, 33 will be explained in more detail later. In the following, further embodiments of the device according to the invention will now be explained in more detail. However, the basic operation of these devices is identical to the operation of the already explained first embodiment.
- the internal combustion engine 3 is formed here by a V-type engine.
- the internal combustion engine 3 here has two cylinder heads 9 and two cylinder head covers 11.
- the venting channels 13, 15 are here each formed by a running outside of the engine 3 channel portion 37 and indicated by dashed lines, extending through the engine 3 channel section 39.
- the channel sections 37 may be formed, for example, by pipelines which are connected to the cylinder head covers 11 of the internal combustion engine 3.
- the channel sections 39 are formed by recesses, which run here by way of example through the cylinder head covers 11 and the cylinder heads 9 up to the crank chamber 19.
- each venting channel 13, 15 a seen in the fluid flow direction, downstream of the respective check valve 31, 33 arranged Olabscheider- element 35, by means of which oil from the through the respective vent channel 13, 15 flowing fluid can be deposited.
- the check valve 31 and the oil separator element 35 of the venting channel 13 also form a structural unit 41 here.
- the check valve 33 and the oil separator element 35 of the vent channel 15 form a unit 43 from here.
- each venting channel 13, 15 also opens into the intake tract 21, not shown in FIG. 2, of the internal combustion engine 3.
- a third embodiment of the device 1 is shown.
- the venting channels 13, 15 are here combined at a junction region 45 to a venting channel or to a venting line 47, which again divides into three venting channels or venting lines 51 at a branching region 49. branched.
- Each venting channel 51 is also assigned here an oil separator element 35, by means of which oil can be separated from the fluid flowing through the respective venting channel 51.
- it also opens here each venting channel 51 in the not shown in FIG. 3 intake system 21 of the internal combustion engine. 3
- a ventilation channel 53 is additionally provided here, which opens into the crank chamber 19 of the crankcase 7 with a gas inlet opening 55 and to the ventilation channel 13, 15 at the junction area 27 with the ventilation channels 13, 15 17 is united.
- the venting channel 53 is formed here by a channel section 58 running outside the internal combustion engine 3 and by a channel section 59 indicated by dashed lines and extending through the internal combustion engine 3.
- the channel section 59 is here associated with a check valve 60, by means of which a fluid flow can be shut off and released by the vent line 53.
- the check valve 60 is also part of the assembly 36.
- a fifth embodiment of the device 1 is shown.
- the oil separator element 35 and the check valves 31, 33 do not form a structural unit 36 here.
- the check valve 33 is also assigned to the crankcase 7 of the internal combustion engine 3 here.
- the check valve 31 is here associated with the cylinder head cover 11 of the internal combustion engine 3.
- the venting channel 13 has a channel section 63 extending outside the internal combustion engine 3 and a duct section 65, indicated by dashed lines, passing through the internal combustion engine 3.
- the channel section 63 is here formed by a pipeline which opens at the cylinder head cover 11.
- the channel section 65 extends here through the cylinder head cover 11 and through the cylinder head 9 up to the crank chamber 19.
- a sixth embodiment of the device 1 is shown.
- the check valve 31 and the oil separator element 35 of the ventilation duct here no structural unit.
- here also form the check valve 33 and the oil separator element 35 of the vent passage 15 no assembly.
- the check valves 31, 33 of the respective cylinder head cover 11 are assigned here.
- a seventh embodiment of the device 1 is shown.
- the internal combustion engine 3 is designed here as a four-cylinder in-line engine.
- the device 1 has here several, in this example four, ventilation ducts 67, each of which has a duct section 69 arranged outside the internal combustion engine 3 and a duct section 71 extending through the internal combustion engine 3.
- the channel section 69 is here formed by a pipeline which opens at the cylinder head cover 11.
- the channel section 71 extends here through the cylinder head cover 11 and through the cylinder head 9 up to the crank chamber 19th
- gas inlet openings 73 of the ventilation channels 67 are distributed uniformly over the crank chamber 19 in the longitudinal direction of the engine. It is thereby achieved that at any inclination of the internal combustion engine 3 about a transverse axis formed by the engine transverse direction y (FIG. 1) at least one of the gas inlet openings 73 does not dip into the oil pan oil accumulated in the oil pan 5.
- each venting channel 67 is associated with a check valve 75, by means of which a fluid flow through the respective venting channel 67 can be blocked and released.
- venting channels 67 also unite here at a junction region 77 to three venting channels or venting lines 79.
- Each venting channel 79 is here also associated with an oil separator element 81 for separating oil from the respective venting channel 79 flowing fluid.
- the determination channels 79 open here into the intake tract 21, not shown in FIG. 7, of the internal combustion engine 3.
- FIG. 8 an eighth embodiment of the device 1 is shown.
- the blocking valves 31, 33 are not here associated with the cylinder head covers 11 of the internal combustion engine 3, but, viewed in the fluid flow direction, downstream of the oil separator element 35 of the respective ventilation channel 13, 15.
- the vent channels 13, 15 at a downstream of the check valves 31, 33 arranged union region 82 to a vent passage 83, which opens into the intake tract 21 of the internal combustion engine 3.
- FIG. 9 shows a ninth embodiment of the device 1.
- four check valves 75 are not provided here, which are assigned to the cylinder head cover 11 of the internal combustion engine. Instead, here each venting channel 79 is associated with a check valve 85.
- a tenth embodiment of the device 1 is shown.
- the blocking valve 85 and the oil separator element 81 of the respective ventilation channel 79 in each case form a structural unit 87 here.
- the check valves 85 are arranged upstream of the respective oil separator element 81, as viewed in the fluid flow direction.
- FIG. 11 shows a eleventh embodiment of the device 1 in comparison to the first embodiment of the device 1 shown in FIG. 1, the blocking valves 31, 33 and the oil separator element 35 do not form a structural unit here.
- the check valves 31, 33 are assigned here to the crankcase 7 of the internal combustion engine 3.
- FIG. 12 shows a first embodiment of the aforementioned check valves 31, 33, 75, 85, the check valve 31 being illustrated by way of example for this purpose.
- the bleed passage 13 is associated with an oil quantity sensor 89, by means of which the amount of oil flowing through the vent passage 13 can be measured.
- the oil quantity sensor 89 is here, viewed in the fluid flow direction, arranged upstream of the check valve 31.
- the oil quantity sensor 89 is signaled connected to a control unit 91, by means of the check valve 31 and an actuator 92 for actuating the check valve 31 in response to the detected by means of the oil quantity sensor 89 oil quantity for shutting off or releasing the vent passage 13 is driven.
- the check valve 31 is thus externally actuated here.
- the check valve 31 is actuated by means of the control device 91 such that the check valve 31 shuts off the venting channel 13. If the quantity of oil measured with the oil quantity sensor 89 drops below the defined oil quantity limit value, then the blocking valve 31 is activated by means of the control unit 91 such that the blocking valve 31 releases the venting channel 13.
- a second embodiment of the check valve 31 is shown.
- the check valve 31 is formed here by a float valve, which is arranged in a labyrinth-like, U-shaped portion 93 of the vent passage 13.
- the U-shaped section 93 has, viewed in the fluid flow direction, a first U-leg 95, a U-base 97 and a second U-leg 99.
- the check valve 31 is arranged here by way of example in the second U-leg 99 of the U-shaped section 93.
- the check valve 31 has here a sealing element designed as a float body 101, which is pressed to block the fluid flow through the vent passage 13 against a corresponding sealing seat 103 and releases a defined flow cross section from the release of the fluid flow through the vent passage 13.
- a sealing element designed as a float body 101, which is pressed to block the fluid flow through the vent passage 13 against a corresponding sealing seat 103 and releases a defined flow cross section from the release of the fluid flow through the vent passage 13.
- the float body 101 shown here in its closed position in which it shuts off the flow of fluid through the vent passage 13.
- the float body is shown in its open position, in which the float body 101, the fluid flow through the vent passage 13 releases.
- the floating body 101 here also has a flow-optimized region 104 by way of example, the cross section of which expands here by way of example in the direction of fluid flow.
- the flow-optimized region 104 is in this case designed such that the float 101 is pressed to block the fluid flow through the vent channel 13 from the fluid flow against the sealing seat 103 and releases a defined flow cross-section through the vent channel 13 to release the fluid flow.
- the check valve 31 here also has a spring element 105 which biases the float body 101 arranged in its closed position into its open position.
- the U-base 97 of the U-shaped section 93 also exemplarily has a bottom wall-side oil drain opening 107 for discharging oil accumulated in the U-base 97 and in the U-legs 95, 99.
- the oil drain opening 107 is arranged here by way of example in alignment with the second U-leg 99.
- FIGS. 15 and 16 A third embodiment of the check valve 31 is shown in FIGS. 15 and 16, wherein the entire assembly 27 of the first embodiment of the device 1 shown in FIG. 1 is shown by way of example here.
- the check valves 31, 33 are constructed here as an example.
- the check valve 31 here has a sealing body 109 with a defined flow contour, which is pressed to block the fluid flow through the vent channel 13 from the fluid flow against a corresponding sealing seat 111 and releases a defined flow cross section to release the fluid flow through the vent passage 13.
- the check valve 31 is shown here in its open position, in which the check valve 31 releases the fluid flow through the vent passage 13.
- the check valve 31 is shown in its closed position in which the check valve 31 shuts off the flow of fluid through the vent passage 13.
- the sealing body 109 is here exemplified spherical.
- a spring element 1 12 is provided, which biases the arranged in its closed position sealing body 109 in its open position.
- the oil separator element 35 is formed here by way of example by an active oil separator.
- a fourth embodiment of the check valve 31 is shown.
- the check valve 31 has here a relative to the vent passage 13 about the longitudinal axis formed by the engine longitudinal axis x AL rotatably fixed locking element 1 15, which is formed here by way of example by a throttle valve.
- the blocking element 1 15 is connected here via a lever element 1 1 7 with a, a defined measures having counterweight element 1 19, such that the blocking element 1 15 regardless of the inclination of the internal combustion engine 3 about the longitudinal axis always has the same orientation relative to the horizontal.
- the locking element 1 15 is here shown in a first rotational position in which the locking element 1 15 releases the vent passage 13.
- the blocking element 1 15 is shown in a second rotational position in which the blocking element 1 15 shuts off the venting channel 13.
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- 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 |
|---|---|---|---|
| DE102016000632.3A DE102016000632A1 (de) | 2016-01-25 | 2016-01-25 | Vorrichtung und Verfahren zur Entlüftung eines Kurbelgehäuses einer Brennkraftmaschine |
| PCT/EP2017/000048 WO2017129350A1 (de) | 2016-01-25 | 2017-01-18 | Vorrichtung und verfahren zur entlüftung eines kurbelgehäuses einer brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3408508A1 true EP3408508A1 (de) | 2018-12-05 |
| EP3408508B1 EP3408508B1 (de) | 2020-01-08 |
Family
ID=57914928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17701994.0A Active EP3408508B1 (de) | 2016-01-25 | 2017-01-18 | Vorrichtung und verfahren zur entlüftung eines kurbelgehäuses einer brennkraftmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10443460B2 (de) |
| EP (1) | EP3408508B1 (de) |
| CN (1) | CN109072737B (de) |
| DE (1) | DE102016000632A1 (de) |
| RU (1) | RU2722425C2 (de) |
| WO (1) | WO2017129350A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10738670B2 (en) * | 2018-10-11 | 2020-08-11 | Kawasaki Jukogyo Kabushiki Kaisha | Utility vehicle |
| DE102019129716B3 (de) * | 2019-11-05 | 2021-03-11 | Audi Ag | Verfahren zum Betreiben einer Brennkraftmaschine sowie entsprechende Brennkraftmaschine |
| DE102020116049B4 (de) * | 2020-06-18 | 2024-09-12 | Bayerische Motoren Werke Aktiengesellschaft | Entlüftungsvorrichtung |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156111A (ja) | 1982-03-10 | 1983-09-17 | Babcock Hitachi Kk | 焼却炉の温度制御装置 |
| JPS58156111U (ja) * | 1982-04-15 | 1983-10-18 | 株式会社クボタ | 耐転倒内燃機関のブレザ−装置 |
| JPS5940512A (ja) | 1982-08-27 | 1984-03-06 | Mitsubishi Electric Corp | 電磁誘導機器 |
| JPS5940512U (ja) * | 1982-08-31 | 1984-03-15 | 愛知機械工業株式会社 | ロッカ−カバ−の油分離機構 |
| JPH0988542A (ja) * | 1995-09-19 | 1997-03-31 | Kubota Corp | エンジンのブローバイガス処理装置 |
| DE19615870A1 (de) * | 1996-04-22 | 1997-10-23 | Deutz Ag | Kurbelgehäuseentlüftung für eine Brennkraftmaschine |
| DE19715233C1 (de) * | 1997-04-12 | 1998-11-19 | Daimler Benz Ag | Vorrichtung zur Entlüftung eines Kurbelgehäuses |
| JP2001182520A (ja) * | 1999-12-27 | 2001-07-06 | Hino Motors Ltd | エンジンのブローバイガス還元装置 |
| DE10129362A1 (de) | 2001-06-20 | 2003-01-02 | Bomag Gmbh | Entlüftungssystem für den Motor eines Stampfers |
| DE10238422A1 (de) | 2002-08-22 | 2004-03-04 | Daimlerchrysler Ag | Brennkraftmaschine |
| DE60219466T2 (de) * | 2002-08-22 | 2008-01-03 | Perkins Engines Co. Ltd. | Combinierte Sperrventil und Deckel für eine Entlüftungsvorrichtung einer Brennkraftmaschine |
| DE202005003462U1 (de) * | 2005-03-01 | 2006-07-13 | Hengst Gmbh & Co.Kg | Durchlüftungsanordnung für das Kurbelgehäuse einer Brennkraftmaschine |
| JP4297175B2 (ja) * | 2006-10-06 | 2009-07-15 | トヨタ自動車株式会社 | ブローバイガス処理装置 |
| JP5202235B2 (ja) * | 2008-11-04 | 2013-06-05 | 株式会社マーレ フィルターシステムズ | エンジンの換気システム |
| JP5826017B2 (ja) * | 2011-12-22 | 2015-12-02 | 株式会社マキタ | 4ストロークエンジン |
| US9027536B2 (en) * | 2012-06-26 | 2015-05-12 | Ford Global Technologies, Llc | Crankcase ventilation and vacuum generation |
| US9316131B2 (en) * | 2012-09-14 | 2016-04-19 | Ford Global Technologies, Llc | Crankcase integrity breach detection |
| US8905010B2 (en) * | 2013-03-05 | 2014-12-09 | Gm Global Technology Operations | Positive crankcase ventilation system for a two-cylinder engine |
| US9074502B2 (en) * | 2013-05-08 | 2015-07-07 | Ford Global Technologies, Llc | Positive crankcase ventilation system and method for operation |
| US9074563B2 (en) * | 2013-08-07 | 2015-07-07 | Ford Global Technologies, Llc | Engine system having a condensate bypass duct |
-
2016
- 2016-01-25 DE DE102016000632.3A patent/DE102016000632A1/de not_active Withdrawn
-
2017
- 2017-01-18 CN CN201780019472.3A patent/CN109072737B/zh active Active
- 2017-01-18 WO PCT/EP2017/000048 patent/WO2017129350A1/de not_active Ceased
- 2017-01-18 US US16/072,445 patent/US10443460B2/en active Active
- 2017-01-18 EP EP17701994.0A patent/EP3408508B1/de active Active
- 2017-01-18 RU RU2018130541A patent/RU2722425C2/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| US10443460B2 (en) | 2019-10-15 |
| EP3408508B1 (de) | 2020-01-08 |
| BR112018015109A2 (pt) | 2018-12-11 |
| CN109072737A (zh) | 2018-12-21 |
| RU2722425C2 (ru) | 2020-05-29 |
| RU2018130541A3 (de) | 2020-03-24 |
| US20190032528A1 (en) | 2019-01-31 |
| WO2017129350A1 (de) | 2017-08-03 |
| CN109072737B (zh) | 2021-03-12 |
| DE102016000632A1 (de) | 2017-07-27 |
| RU2018130541A (ru) | 2020-02-27 |
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