DE1576353B1 - Device for venting a crankcase in an internal combustion engine - Google Patents
Device for venting a crankcase in an internal combustion engineInfo
- Publication number
- DE1576353B1 DE1576353B1 DE19671576353 DE1576353A DE1576353B1 DE 1576353 B1 DE1576353 B1 DE 1576353B1 DE 19671576353 DE19671576353 DE 19671576353 DE 1576353 A DE1576353 A DE 1576353A DE 1576353 B1 DE1576353 B1 DE 1576353B1
- Authority
- DE
- Germany
- Prior art keywords
- throttle valve
- line
- chamber
- separation
- crankcase
- 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.)
- Withdrawn - After Issue
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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
-
- 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
- F01M13/025—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction with an inlet-conduit via an air-filter
Description
Fig. 1 eine schematische Ansicht einer Brennkraftmaschine mit der Entlüftungsvorrichtung undFig. 1 is a schematic view of an internal combustion engine with the venting device and
F i g. 2 einen Teilschnitt durch die Entlüftungsvorrichtung in vergrößerter Darstellung.F i g. 2 shows a partial section through the ventilation device in an enlarged view.
Das Maschinengehäuse 10 der Brennkraftmaschine weist in seinem oberen Teil einen AnschlußThe machine housing 10 of the internal combustion engine has a connection in its upper part
11 für eine Entlüftungsleitung 12 auf, die an das Leitungssystem 13 für die Ansaugluft angeschlossen ist.11 for a vent line 12, which is connected to the line system 13 for the intake air is.
Das Leitungssystem 13 besteht aus dem Ansaugrohr 14, das an einen Luftfilter 15 angeschlossen ist. Die gefilterte Ansaugluft gelangt über eine Zwischenleitung 16 in eine Kammer 17, die dem Vergaser 18 vorgeschaltet ist und mit dieäem über Öffnungen 19 für die Ansaugluft in Verbindung steht.The line system 13 consists of the intake pipe 14 which is connected to an air filter 15. The filtered intake air arrives via an intermediate line 16 into a chamber 17, which is connected to the carburetor 18 is upstream and communicates with dieäem via openings 19 for the intake air.
Wie insbesondere aus F i g. 2 ersichtlich ist, weist die Kammer 17 eine Verbindungsöffnung 20 auf, über die sie mit einem Abscheideraum 21 in Verbindung steht. Der Abscheideraum 21 ist durch eine Leitung 22 an den Vergaser 18 angeschlossen, und zwar stromab zu dessen Drosselklappe 27.As in particular from FIG. 2 can be seen, the chamber 17 has a connecting opening 20, Via which it is connected to a separation chamber 21. The separation space 21 is through a Line 22 is connected to the carburetor 18, specifically downstream of its throttle valve 27.
Die Entlüftungsleitung 12 ragt mit ihrer kammerseitigen Mündung 23 so weit durch die Verbindungsöffnung 20 der Kammer 17 in den Abscheideraum 21 hinein, daß bei bestimmten Betriebszuständen eine Umlenkung der Entlüftungsgase aus der LeitungThe vent line 12 protrudes with its mouth 23 on the chamber side so far through the connecting opening 20 of the chamber 17 into the separation space 21 into that, in certain operating conditions, a diversion of the vent gases from the line
12 in die Kammer 17 infolge des in dieser Kammer wirkenden Unterdruckes eintritt. Die in den Entlüftungsgasen enthaltenen Schmutz- und Flüssigkeitsteilchen machen diese Umlenkbewegung der Gase nicht mit und werden unmittelbar durch die Leitung 22 in das Luftansaugsystem abgeführt.12 enters the chamber 17 as a result of the negative pressure acting in this chamber. The ones in the vent gases Contained dirt and liquid particles do not make this deflection movement of the gases and are immediately by the Line 22 discharged into the air intake system.
Der in den Abscheideraum 21 hineinragende Wandteil 12 α der Entlüftungsleitung 12 und der an die Kammer 17 angrenzende Wandteil 21a des Abscheideraumes 21 bilden eine Leitvorrichtung für die vorstehend beschriebene Umlenkung. Der Eintritt in diese Leitvorrichtung 12 a, 21a wird durch die Mündung 23 der Entlüftungsleitung 12 gebildet, während die Verbindungsöffnung 20 der Kammer 17 bzw. der zwischen den Wandteilen 12 α und 21a verbleibende Kreisringquerschnitt den Ausgang der Leitvorrichtung bilden.The projecting into the separating chamber 21 wall part 12 α of the vent line 12 and adjacent to the chamber 17 wall portion 21a of the separating chamber 21 form a guide device for the above described deflection. The entry into this guide device 12a , 21a is formed by the mouth 23 of the vent line 12, while the connecting opening 20 of the chamber 17 or the annular cross section remaining between the wall parts 12a and 21a form the outlet of the guide device.
Die Strömungsverhältnisse im Bereich der Leitvorrichtung 12 a, 21a sind durch Richtungspfeile angegeben. Im Leerlauf-, Teillast- und Schubbetrieb des Fahrzeuges wirkt bei weitgehend geschlossener Drosselklappe 27 in der Leitung 22 der größte Unterdruck, so daß vom Abscheideraum 21 aus sowohl Gase unter anderem aus der Entlüftungsleitung 12 als auch Frischluft aus der Kammer 17 durch die Leitung 22 abgesaugt werden (Pfeile T). Bei Lastbetrieb ist bei weitgehend geöffneter Drosselklappe 27 der Unterdruck in der Leitung 22 geringer, so daß die Entlüftungsgase in der durch die Pfeile V gekennzeichneten Weise in die Kammer 17 umgelenkt werden, während durch die Leitung 22 im wesentlichen nur die abgeschiedenen Schmutz- bzw. Flüssigkeitsteilchen V abgeführt werden.The flow conditions in the area of the guide device 12 a, 21 a are indicated by directional arrows. When the vehicle is idling, part-load and overrun, when the throttle valve 27 is largely closed, the greatest negative pressure acts in line 22, so that gases, including gases from the vent line 12 and fresh air from chamber 17, are sucked through line 22 from the separation chamber 21 (arrows T). During load operation, with the throttle valve 27 largely open, the negative pressure in the line 22 is lower, so that the vent gases are diverted into the chamber 17 in the manner indicated by the arrows V , while through the line 22 essentially only the separated dirt or liquid particles V.
Durch Veränderung des Ringquerschnittes zwischen den Wandteilen 12 α und 21 α kann die Entlüftung auf die jeweiligen Druckverhältnisse in der Kammer 17 bei verschiedenen Maschinentypen abgestimmt werden.By changing the ring cross-section between the wall parts 12 α and 21 α, the ventilation can be matched to the respective pressure conditions in the chamber 17 in different types of machines.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
COPYCOPY
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0052481 | 1967-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1576353B1 true DE1576353B1 (en) | 1972-03-09 |
Family
ID=7054208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19671576353 Withdrawn - After Issue DE1576353B1 (en) | 1967-03-09 | 1967-03-09 | Device for venting a crankcase in an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1576353B1 (en) |
FR (1) | FR1560710A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GR80859B (en) * | 1983-12-03 | 1985-04-02 | Pommer Fredi | Improved fuel saving apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3073293A (en) * | 1962-04-05 | 1963-01-15 | Ray C Barker | Crankcase vapor recycle system |
DE1884112U (en) * | 1963-05-11 | 1963-12-05 | Mann & Hummel Filter | INTAKE AIR FILTER FOR COMBUSTION MACHINERY. |
US3172399A (en) * | 1961-12-13 | 1965-03-09 | Walker Mfg Co | Exhaust system |
US3175546A (en) * | 1963-07-02 | 1965-03-30 | John H Roper | Positive crankcase ventilation |
-
1967
- 1967-03-09 DE DE19671576353 patent/DE1576353B1/en not_active Withdrawn - After Issue
-
1968
- 1968-03-07 FR FR1560710D patent/FR1560710A/fr not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3172399A (en) * | 1961-12-13 | 1965-03-09 | Walker Mfg Co | Exhaust system |
US3073293A (en) * | 1962-04-05 | 1963-01-15 | Ray C Barker | Crankcase vapor recycle system |
DE1884112U (en) * | 1963-05-11 | 1963-12-05 | Mann & Hummel Filter | INTAKE AIR FILTER FOR COMBUSTION MACHINERY. |
US3175546A (en) * | 1963-07-02 | 1965-03-30 | John H Roper | Positive crankcase ventilation |
Also Published As
Publication number | Publication date |
---|---|
FR1560710A (en) | 1969-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
EF | Willingness to grant licences | ||
8330 | Complete disclaimer |