EP0916018B1 - Entlüftungsvorrichtung für das kurbelgehäuse einer brennkraftmaschine - Google Patents
Entlüftungsvorrichtung für das kurbelgehäuse einer brennkraftmaschine Download PDFInfo
- Publication number
- EP0916018B1 EP0916018B1 EP97940057A EP97940057A EP0916018B1 EP 0916018 B1 EP0916018 B1 EP 0916018B1 EP 97940057 A EP97940057 A EP 97940057A EP 97940057 A EP97940057 A EP 97940057A EP 0916018 B1 EP0916018 B1 EP 0916018B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- separator
- venting device
- gas
- venting
- 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.)
- Expired - Lifetime
Links
- 238000013022 venting Methods 0.000 title claims description 16
- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 239000000203 mixture Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 61
- 238000009423 ventilation Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase
Definitions
- the invention relates to a ventilation device for the crankcase of an internal combustion engine, especially for a single cylinder diesel engine, with a vent valve.
- venting devices are from the state already known in the art, the ventilation of the Crankcase usually via a line in the Intake tract takes place. It is a quite environmentally friendly solution because the oil which is released when venting, immediately in the combustion chamber is burned.
- the disadvantage is that Motors with a large inclined position, e.g. for ship engines or overturned engines there is a risk that the oil gets into the combustion chamber and the engine with it "goes through” and becomes excessive due to excessive Speed destroyed itself.
- the present invention is therefore based on the object to create a ventilation device even with an inclined position or overturned Internal combustion engine effectively penetrates the oil in the venting device prevents the combustion chamber.
- the invention is characterized in that in Direction of flow behind the vent valve Channel is provided for the gas-oil mixture, which in An oil separator ends up being behind the oil separator a connection to the environment is provided for the gas is.
- the crankcase By diverting the flammable gas mixture to the Atmosphere, the crankcase becomes effective deaerated and a supply of the ignitable mixture avoided in the combustion chamber.
- the liquid area of the oil separator to drain the oil with is connected to a separator.
- This separator is a small chamber in which the oil is collected.
- crankcase a connection of the Separators with the suction side of the oil pump for recycling of the oil is provided in the crankcase. This occurs when the crankcase is vented almost no oil loss due to the oil in the oil separator separated and the crankcase oil circuit again is fed. The gaseous components escape, as already described, into the atmosphere.
- Another advantageous embodiment of the present Invention is characterized in that the Connection of the separator to the suction side of the Oil pump a channel is provided, the cross section is smaller than that of the channel for the gas-air mixture.
- the oil pump is guaranteed constant suction a safe return regardless of the motor position the oil into the crankcase.
- By the small pipe cross-section becomes more advantageous Way ensured that especially oil from the Separator is sucked in. The one sucked in anyway Residual air is harmless to the system.
- the oil separator gas-permeable suction pad for absorbing the oil having. This will make it surprisingly easier Way ensures a safe separation of gas and oil.
- the suction pad absorbs the oil immediately, which prevents the oil from splashing off.
- the suction pad fulfills the function of a Dust filter, i.e. Impurities are partly recorded, partly deposited on the surface. In addition, by replacing the suction pad simple and inexpensive maintenance is guaranteed.
- connection of the Separators with the suction side of the oil pump one lockable opening for refilling the oil during of operation. This can e.g. beneficial for refilling oil during the operation of a Ship diesel engine, because here at long Long journeys no engine shutdown required is.
- the oil separator through a vertical tube with an oblique opening is formed. This creates a large outflow cross-section given for the gas mixture in the oil separator, what a proper function of the oil separator guaranteed.
- the vertical tube is surrounded by a concentric mantle that its upper end with an opening to the environment is provided. This construction leaves a simple one and inexpensive to manufacture.
- a particularly advantageous embodiment provides before that the vertical pipe at the end of the oblique Opening forms a tip that is made of felt formed suction pad is pierceable. For one thing this ensures a safe suction of the on the inner tube wall oil running along additionally through utilization the capillary forces ensured and to others, the use of felt ensures that the vertical tube easily into the suction pad is stabbed.
- the use of Felt as a suction pad a simple and inexpensive Solution.
- the crankcase 1 with a Vent valve 2 for example a diaphragm valve may be connected
- the vent valve 2 is connected to an oil separator 3 which at one end an opening 4 to the atmosphere has and at its other exit with a Filter 5 is connected.
- the filter 5 is in turn connected to the suction side of the oil pump 6, which in turn sucks the oil from an oil sump 7 and on it Conveyed back into the crankcase 1.
- a filler neck 8 is shown, in which the system additional oil can be added.
- the line 10 If no oil to the separator, the line 10 is air pulls, the amount of air sucked in must be so low be held that the lubricating oil system is not is impaired (e.g. tear-off lubrication). From the suction side of the oil pump, which is normally oil sucks from the oil sump 7, the oil gets into the Crankcase 1. There is over the filler neck 8 the possibility to add oil during operation.
- Fig. 2 shows a section through the invention Oil separator. This is outside the motor housing 12 arranged. It is the conduit for the gas-oil mixture 9, the oblique opening 13, the Direction of flow of the gas indicated by arrow A. as well as the suction pad 5, the separator 11 and the Oil line 10 recognizable. Furthermore, the casing 14, the sealing closure 15 and the Atmosphere opening 4 shown.
- the oil separator is attached to the Air filter housing 16 attached. Through line 9 a gas-oil mixture enters the crankcase the device. Due to the sharp redirection of the air the heavier oil particles slide in the direction of arrow A. down on the high wall 17 and are from the Suction pad 5, through the tip 18 with the Line 9 is connected, sucked up. The air rises up in the jacket 14 and can only by the opening 4 escape into the environment. That in that suction pads made of felt 5 collected and filtered oil drips into a chamber 11, the so-called Separator and is by the diameter significantly narrower oil line 10 from the Oil pump sucked in. By disassembling the sealing cap 15 and pulling out line 9 will Replacing the suction pad for maintenance purposes allows.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
- Fig. 1
- eine schematische Darstellung einer Entlüftungsvorrichtung der erfindungsgemäßen Art,
- Fig. 2
- ein Schnittbild eines Ölabscheiders der erfindungsgemäßen Art.
Claims (10)
- Entlüftungsvorrichtung für das Kurbelgehäuse einer Brennkraftmaschine, insbesondere für einen Einzylinder-Dieselmotor, mit einem Entlüftungsventil,
dadurch gekennzeichnet, daß in Strömungsrichtung hinter dem Entlüftungsventil (2) ein Kanal (9) für das Gas-Öl-Gemisch vorgesehen ist, der in einem Ölabscheider (3) endet, wobei hinter dem Ölabscheider (3) für das Gas eine Verbindung (4) zur Umgebung vorgesehen ist. - Entlüftungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Flüssigkeitsbereich des Ölabscheiders (3) zum Abführen des Öls mit einem Separator (11) verbunden ist. - Entlüftungsvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß eine Verbindung des Separators (11) mit der Saugseite der Ölpumpe (6) zum Rückführen des Öls in das Kurbelgehäuse (1) vorgesehen ist. - Entlüftungsvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß zur Verbindung des Separators (11) mit der Saugseite der Ölpumpe (6) ein Kanal (10) vorgesehen ist, dessen Querschnitt kleiner ist als derjenige des Kanals (9) für das Gas-Öl-Gemisch. - Entlüftungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Ölabscheider (3) ein gasdurchlässiges Saugpolster (5) zum Aufnehmen des Öls aufweist. - Entlüftungsvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß die Verbindung (10) des Separators (11) mit der Saugseite der Ölpumpe (6) eine verschließbare Öffnung (8) um Nachfüllen von Öl während des Betriebs aufweist. - Entlüftungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Ölabscheider (3) durch ein vertikales Rohr mit einer schrägen Öffnung (13) gebildet ist. - Entlüftungsvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, daß das vertikale Rohr von einem konzentrischen Mantel (14) umgeben ist, der an seinem oberen Ende mit einer Öffnung (4) zur Umgebung versehen ist. - Entlüftungsvorrichtung nach den Ansprüchen 5 und 7,
dadurch gekennzeichnet, daß das vertikale Rohr am Ende der schrägen Öffnung (13) eine Spitze (18) bildet, die in das aus Filz gebildete Saugpolster (5) einstechbar ist. - Entlüftungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Verbindungsleitungen (9, 10) außerhalb des Motorgehäuses angeordnet sind.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19631654 | 1996-08-05 | ||
| DE19631654A DE19631654A1 (de) | 1996-08-05 | 1996-08-05 | Entlüftungsvorrichtung für das Kurbelgehäuse einer Brennkraftmaschine |
| PCT/EP1997/004210 WO1998005854A1 (de) | 1996-08-05 | 1997-08-01 | Entlüftungsvorrichtung für das kurbelgehäuse einer brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0916018A1 EP0916018A1 (de) | 1999-05-19 |
| EP0916018B1 true EP0916018B1 (de) | 2002-04-10 |
Family
ID=7801882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97940057A Expired - Lifetime EP0916018B1 (de) | 1996-08-05 | 1997-08-01 | Entlüftungsvorrichtung für das kurbelgehäuse einer brennkraftmaschine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0916018B1 (de) |
| JP (1) | JP2000515603A (de) |
| DE (2) | DE19631654A1 (de) |
| WO (1) | WO1998005854A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19916172C2 (de) * | 1999-04-10 | 2001-05-31 | Druckluft Dannoehl Gmbh | Kolben-Nachverdichter |
| AUPR518501A0 (en) | 2001-05-22 | 2001-06-14 | Unisearch Limited | Yin yang-1 |
| FR2867564B1 (fr) * | 2004-03-11 | 2006-06-23 | Total France | Procede et dispositif de mesure en temps reel de la consommation d'huile du systeme de separation d'huile moteur |
| DE202005018132U1 (de) * | 2005-11-17 | 2007-03-29 | Hengst Gmbh & Co.Kg | Brennkraftmaschine mit einer Einrichtung zum Abscheiden von Öl aus dem Kurbelgehäuseentlüftungsgas |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3134658A (en) * | 1960-10-21 | 1964-05-26 | Ingersoll Rand Co | Breather trap |
| US3326198A (en) * | 1965-03-19 | 1967-06-20 | Connie L Jackson | Smog reduction filter for internal combustion engines |
| FR2068285A5 (de) * | 1969-10-01 | 1971-08-20 | Katashi Aoki | |
| DE2535950C2 (de) * | 1975-08-12 | 1983-01-05 | Motorenfabrik Hatz Gmbh & Co Kg, 8399 Ruhstorf | Selbsttätiges Regelventil für die Kurbelgehäuseentlüftung einer Brennkraftmaschine |
| GB1531080A (en) * | 1977-08-26 | 1978-11-01 | Gec Diesels Ltd | Crankcase ventilation of internal combustion piston engines |
| US5497755A (en) * | 1995-05-26 | 1996-03-12 | Caterpillar Inc. | Engine crankcase ventilation |
-
1996
- 1996-08-05 DE DE19631654A patent/DE19631654A1/de not_active Withdrawn
-
1997
- 1997-08-01 JP JP10507605A patent/JP2000515603A/ja not_active Ceased
- 1997-08-01 EP EP97940057A patent/EP0916018B1/de not_active Expired - Lifetime
- 1997-08-01 DE DE59706981T patent/DE59706981D1/de not_active Expired - Fee Related
- 1997-08-01 WO PCT/EP1997/004210 patent/WO1998005854A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000515603A (ja) | 2000-11-21 |
| DE19631654A1 (de) | 1998-02-19 |
| DE59706981D1 (de) | 2002-05-16 |
| EP0916018A1 (de) | 1999-05-19 |
| WO1998005854A1 (de) | 1998-02-12 |
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