EP0078529A1 - Lubricating device for an internal-combustion engine - Google Patents

Lubricating device for an internal-combustion engine Download PDF

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Publication number
EP0078529A1
EP0078529A1 EP82110047A EP82110047A EP0078529A1 EP 0078529 A1 EP0078529 A1 EP 0078529A1 EP 82110047 A EP82110047 A EP 82110047A EP 82110047 A EP82110047 A EP 82110047A EP 0078529 A1 EP0078529 A1 EP 0078529A1
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EP
European Patent Office
Prior art keywords
oil
internal combustion
combustion engine
flap
main chamber
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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
Application number
EP82110047A
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German (de)
French (fr)
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EP0078529B1 (en
Inventor
Hubert Emmerich
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Kloeckner Humboldt Deutz AG
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Kloeckner Humboldt Deutz AG
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Priority to AT82110047T priority Critical patent/ATE13927T1/en
Publication of EP0078529A1 publication Critical patent/EP0078529A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices
    • F01M11/12—Indicating devices; Other safety devices concerning lubricant level
    • 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
    • F01M11/0004—Oilsumps
    • F01M2011/0037—Oilsumps with different oil compartments
    • F01M2011/0041—Oilsumps with different oil compartments for accommodating movement or position of engines

Definitions

  • the invention relates to a lubricating device for internal combustion engines for reliable oil supply at a large inclined position, with an oil sump which has at least two chambers arranged one behind the other in the longitudinal direction of the internal combustion engine, to the upper side of which, when the upper main chamber is inclined, the suction side of a pressure pump supplying the lubricating points of the internal combustion engine with oil is, while the lower sub-chamber in an inclined position is connected to the main chamber by a delivery line with an oil pump and, furthermore, an opening which compensates for the oil level is present between the two chambers.
  • the individual chambers are at least partially covered, so that the required amount of oil can accumulate or be stowed in the chambers even when the internal combustion engine is in an inclined position.
  • the oil is continuously pumped by means of the oil pump from at least one secondary chamber lying lower due to the inclined position of the internal combustion engine into the higher main chamber.
  • the main chamber must always be sufficiently filled with oil, since this is where the lubrication points of the internal combustion engine are supplied with oil.
  • the oil in circulation runs back undefined into the chambers of the oil pan. But since the oil level measurement and refilling If the chamber is carried out in only one of the chambers, the chambers must be connected to one another so that an even oil level results for the measurement.
  • a spring-loaded flap is arranged in the opening direction in the main chamber in front of the oil compensation opening, and hydraulic, pneumatic, electrical or mechanical means which are automatically active when the internal combustion engine is operating are provided in the closing direction.
  • the spring-loaded flap is arranged below the mouth of the delivery line causing the oil supply to the main chamber and that the closing torque for the flap is generated by the flow pressure of the oil flowing out of the delivery line. It is useful if the pipe end ends in the main chamber
  • Delivery line serves as a stop for the flap when open.
  • the path of the flap from one end position to the other is within the range of an acute angle.
  • An oil pan 1 of an internal combustion engine is divided into two chambers 2 and 3 arranged essentially one behind the other, an inclined partition 4 being provided for the mutual delimitation of the two chambers 2, 3.
  • a wall 5 which runs in the same direction and delimits the main chamber 2 to the front and which on the one hand merges into a floor 6 of the secondary chamber 3 and on the other hand into the floor of the main chamber 2, not shown.
  • the main chamber 2 is dimensioned so that it can accommodate a larger amount of oil compared to the secondary chamber 3.
  • the flap 8 can be pivoted between its end positions over the range of an acute angle, a pipe socket 15 being provided as a stop in the open position shown in dash-dotted lines.
  • This pipe socket 15 is the end of a line not shown and provided with an intermediate pressure pump through which the main chamber 2 is connected to the secondary chamber 3. With this arrangement, oil is continuously pumped through the pressure pump from the secondary chamber 3 to the main chamber 2 during operation of the internal combustion engine, which then emerges from the pipe socket 15.
  • the pipe socket 15 is supported by an elastic ring 16 on an intermediate wall 17 above the flap 8 and bevelled at its mouth so that the flap 8 closes the mouth completely when open.
  • the spring 12 on the flap 8 is coordinated in its effect so that when the internal combustion engine is started up, the flow pressure of the oil emerging from the pipe stub 15 immediately places it in the closed position with certainty. This ensures, on the one hand, that sufficient oil is always available in the main chamber 2 to supply the lubrication points of the internal combustion engine.
  • the spring 12 provides for an immediate opening of the flap 8 when the internal combustion engine is stopped, so that the large opening 7 in the intermediate wall 4 enables the oil level to be quickly compensated for via both chambers 2 and 3. This has the great advantage that the exact oil level in the oil pan can be determined at any time with the help of a dipstick, regardless of the respective temperature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

1. A lubricating arrangement for an internal combustion engine serving to ensure the latter's lubrication even if it is in a heavily inclined position, the engine's oil sump having at least two compartments, a primary one and a secondary one, in tandem arrangement along the longitudinal direction of the internal combustion engine, the primary compartment (2) which in the engine's inclined position is the upper one being connected to the suction side of a pressure pump arranged to feed oil to the lubrication points of the internal combustion engine and the secondary compartment (3) which in the engine's inclined position is the lower one being connected by a feed duct (15) including an oil pump to the primary compartment, in which an aperture (7) serving to equalize the oil level is arranged between the two compartments, characterized in that a spring-biased flap (8) is arranged in the primary compartment (2) in front of the oil level-equalizing aperture (7), the spring biasing the flap in the opening direction, and in that any hydraulic, pneumatic, electrical or mechanical means in any case employed in running the internal combustion engine are used for automatically moving the flap in the closing direction.

Description

Die Erfindung bezieht sich auf eine Schmiervorrichtung für Brennkraftmaschinen zur sicheren Ölversorgung bei großer Schräglage, mit einem Ölsumpr, der zumindest zwei in Längsrichtung der Brennkraftmaschine hintereinander angeordnete Kammern aufweist, an deren bei Schräglage oberer Hauptkammer die Saugseite einer die Schmierstellen der Brennkraftmaschine mit Öl versorgenden Druckpumpe angeschlossen ist, während die bei Schräglage untere Nebenkammer mit der Hauptkammer durch eine Förderleitung mit ölpumpe verbunden ist und wobei ferner zwischen beiden Kammern eine den Ölspiegel ausgleichende Öffnung vorhanden ist.The invention relates to a lubricating device for internal combustion engines for reliable oil supply at a large inclined position, with an oil sump which has at least two chambers arranged one behind the other in the longitudinal direction of the internal combustion engine, to the upper side of which, when the upper main chamber is inclined, the suction side of a pressure pump supplying the lubricating points of the internal combustion engine with oil is, while the lower sub-chamber in an inclined position is connected to the main chamber by a delivery line with an oil pump and, furthermore, an opening which compensates for the oil level is present between the two chambers.

Bei derartigen Brennkraftmaschinen mit einer in mehrere Kammern unterteilten Ölwanne sind die einzelnen Kammern zumindest teilweise abgedeckt, so daß sich auch bei Schräglage der Brennkraftmaschine in den Kammern die erforderliche Ölmenge ansammeln bzw. gestaut werden kann. Das Öl wird ständig mittels der ölpumpe aus zumindest einer durch die Schräglage der Brennkraftmaschine tiefer liegenden Nebenkammer in die höher liegende Hauptkammer gefördert. Die Hauptkammer muß stets mit Öl ausreichend gefüllt sein, da von hier aus die Ölversorgung der Schmierstellen der Brennkraftmaschine erfolgt. Nach dem Abstellen der Brennkraftmaschine läuft das im Umlauf befindliche Öl undefiniert in die Kammern der Ölwanne zurück. Da aber die ölstandsmessung und das Nachfüllen in nur einer der Kammern durchgeführt wird, müssen die Kammern miteinander verbunden werden, damit sich für die Messung ein gleichmäßiger Ölstand ergibt.In such internal combustion engines with an oil pan divided into several chambers, the individual chambers are at least partially covered, so that the required amount of oil can accumulate or be stowed in the chambers even when the internal combustion engine is in an inclined position. The oil is continuously pumped by means of the oil pump from at least one secondary chamber lying lower due to the inclined position of the internal combustion engine into the higher main chamber. The main chamber must always be sufficiently filled with oil, since this is where the lubrication points of the internal combustion engine are supplied with oil. After the internal combustion engine has been switched off, the oil in circulation runs back undefined into the chambers of the oil pan. But since the oil level measurement and refilling If the chamber is carried out in only one of the chambers, the chambers must be connected to one another so that an even oil level results for the measurement.

Aus der DE-PS 12 98 368 ist ein Schmierölsystem genannter Art für Brennkraftmaschinen bekanntgeworden, wobei in der ölwanne durch eine vertikal und quer verlaufende Trennwand zwei Kammern gebildet sind. Oberhalb der Trennwand schließt sich eine die beiden Kammern z. T. überdeckende Stauwand an. Die Trennwand ist horizontal durch zwei beiderseits in die Kammern hineinragende Rohre durchsetzt, die in Höhe des gemeinsamen Ölspiegels verlaufen. Durch diese Anordnung wird jeweils bei Hori- zontalstellung der Brennkraftmaschine der Ölspiegel in beiden Kammern ausgeglichen. Dadurch ist durch die Anordnung eines beispielsweise in die Hauptkammer hineinragenden Meßstabes die Möglichkeit gegeben, die vorhandene gesamte Olmenge jeweils zu ermitteln. Befindet sich dagegen die Brennkraftmaschine außerhalb ihrer Ausgangslage, dann kann es vorkommen, daß infolge der Schräglage der ölausgleich nicht erfolgt, so daß der am Meßstab abgelesene ölstand ungenau ist. Dasselbe trifft auch für eine Brennkraftmaschine zu, die bereits mit einer gewissen Schräglage in ein Kraftfahrzeug o.dgl. eingebaut ist. Auch hierbei muß bei Verwendung von Rohren als Verbindungselemente zwischen den Kammern die Brennkraftmaschine jeweils in Ausgangsschräglage gebracht werden, um einen Ausgleich des Ölstandes in den Kammern zu erreichen. Wird dabei der lichte Rohrquerschnitt im Verhältnis zur Rohrlänge zu groß gewählt, dann kann es abhängig von der Schräglage vorkommen, daß die hierbei in der Hauptkammer aufzustauende Ölmenge nicht zur sicheren Versorgung der Schmierstellen der Brennkraftmaschine ausreicht. Wählt man dagegen den lichten Querschnitt der Rohrleitungen zu eng, so dauert der Ausgleich des Ölspiegels nach dem Abstellen der Brennkraftmaschine insbesondere bei niederen Temperaturen sehr lange, was leicht zu Fehlmessungen führen kann. Auch beim Einfüllen besteht dann die Gefahr, daß zu wenig Öl eingefüllt wird, wenn die Messung in der Kammer erfolgt, in die auch eingefüllt wird.From DE-PS 12 98 368 a lubricating oil system of the type mentioned for internal combustion engines has become known, two chambers being formed in the oil pan by a vertical and transverse partition. Above the partition one of the two chambers closes z. T. covering dam wall. The dividing wall is horizontally penetrated by two pipes protruding into the chambers on both sides, which run at the level of the common oil level. By this arrangement, in each case H ori the internal combustion engine the oil level zontalstellung equalized in both chambers. As a result, the arrangement of a dipstick protruding into the main chamber, for example, makes it possible to determine the total amount of oil present. On the other hand, if the internal combustion engine is outside of its initial position, it may happen that due to the inclined position, oil compensation does not take place, so that the oil level read on the dipstick is inaccurate. The same also applies to an internal combustion engine, or the like, already with a certain inclined position in a motor vehicle. is installed. Here too, when using pipes as connecting elements between the chambers, the internal combustion engine must be brought into the initial inclined position in order to achieve a compensation of the oil level in the chambers. If the clear pipe cross-section is chosen too large in relation to the pipe length, then depending on the inclined position it can happen that the amount of oil to be accumulated in the main chamber is not used to reliably supply the lubrication points of the internal combustion engine is sufficient. If, on the other hand, the internal cross-section of the pipelines is too narrow, the oil level must be compensated for very long after the internal combustion engine has been switched off, especially at low temperatures, which can easily lead to incorrect measurements. When filling, there is also the risk that too little oil will be filled in if the measurement is carried out in the chamber into which it is also filled.

Ausgehend von diesen Erkenntnissen ist es Aufgabe der Erfindung, eine Schmiervorrichtung der eingangs umrissenen Gattung mit einfachen Mitteln dahingehend zu verbessern, daß der Ausgleich des Ölspiegels zwischen beiden Kammern jeweils nach dem Abstellen der Brennkraftmaschine möglichst schnell durch eine unmittelbar in der Trennwand vorgesehene Öffnung verhältnismäßig großen Querschnitts erfolgen kann.Based on these findings, it is an object of the invention to improve a lubrication device of the type outlined at the outset with simple means in such a way that the compensation of the oil level between the two chambers as quickly as possible after switching off the internal combustion engine through a relatively large cross-section provided directly in the partition wall can be done.

Die Aufgabe wird erfindungsgemäße dadurch gelöst, daß in der Hauptkammer vor der Olausgleichsöffnung eine im Öff- nungssinn federbelastete Klappe angeordnet ist, zu deren Betätigung im Schließsinn selbstttätig beim Betrieb der Brennkraftmaschine ohnehin wirkende hydraulische, pneumatische, elektrische oder mechanische Mittel vorgesehen sind.The object is achieved in that a spring-loaded flap is arranged in the opening direction in the main chamber in front of the oil compensation opening, and hydraulic, pneumatic, electrical or mechanical means which are automatically active when the internal combustion engine is operating are provided in the closing direction.

Durch diese Maßnahmen wird erreicht, daß sich sofort nach dem Abstelien der Brennkraftmaschine die Klappe durch Federkraft öffnet und somit selbst bei niederen Temperaturen ein zügiger Ausgleich des ölspiegels in den beiden Kammern durch eine den Erfordernissen entsprechende große Öffnung in der Trennwand bewirkt. Dabei erfolgt der Ausgleich des ölspiegels auch dann, wenn die Brennkraftmaschine eine von einer Grundstellung abweichende Neigung aufweist. Auch beim Einfüllen von Öl erweist sich hierbei als vorteilhaft, daß sich dieses Öl auch bei hoher Viskosität schnell über alle Kammern verteilt, so daß sich schon kurz nach dem Einfüllen des Öls die Höhe des ausgeglichenen Ölspiegels mit dem Meßstab ermitteln läßt.These measures ensure that the flap opens by spring force immediately after stopping the internal combustion engine and thus, even at low temperatures, causes a rapid compensation of the oil level in the two chambers through a large opening in the partition wall which corresponds to the requirements. The oil level is also compensated for when the internal combustion engine deviates from a basic position appropriate inclination. Even when filling in oil, it proves to be advantageous that this oil is quickly distributed over all chambers, even at high viscosity, so that the level of the balanced oil level can be determined with the dipstick shortly after the oil has been filled in.

In Weiterbildung der Erfindung ist vorgesehen, daß die federbelastete Klappe unterhalb der Mündung der den Ölzulauf zur Hauptkammer bewirkenden Förderleitung angeordnet ist und daß das Schließmoment für die Klappe durch den Strömungsdruck des aus der Förderleitung ausströmenden Öls erzeugt wird. Dabei ist es zweckdienlich, wenn das Rohrende der in der Hauptkammer mündendenIn a further development of the invention it is provided that the spring-loaded flap is arranged below the mouth of the delivery line causing the oil supply to the main chamber and that the closing torque for the flap is generated by the flow pressure of the oil flowing out of the delivery line. It is useful if the pipe end ends in the main chamber

Förderleitung als Anschlag für die Klappe bei Offenstellung dient. Zur wirkungsvollen Beaufschlagung der Klappe in allen Stellungen durch den im Schließsinn einwirkenden Ölstrom ist es vorteilhaft, wenn der Weg der Klappe von einer Endstellung zur anderen innerhalb des Bereiches eines spitzen Winkels liegt.Delivery line serves as a stop for the flap when open. For effective loading of the flap in all positions by the oil flow acting in the closing direction, it is advantageous if the path of the flap from one end position to the other is within the range of an acute angle.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher beschrieben.The invention is described below using an exemplary embodiment with reference to the drawing.

Es zeigt:

  • Fig. 1 einen Längsschnitt durch eine in zwei Kammern unterteilte Ölwanne, deren Ölausgleichsöffnung mit einer Klappe gemäß der Erfindung verschlossen ist,
  • Fig. 2 einen Schnitt nach der Linie II - II in Fig. 1.
It shows:
  • 1 shows a longitudinal section through an oil pan divided into two chambers, the oil compensation opening of which is closed by a flap according to the invention,
  • FIG. 2 shows a section along the line II-II in FIG. 1.

Eine in Fig. 1 teilweise gezeigte ölwanne 1 einer Brennkraftmaschine ist in zwei im wesentlichen hintereinander angeordnete Kammern 2 und 3 unterteilt, wobei zur gegenseitigen Abgrenzung beider Kammern 2, 3 eine geneigte Trennwand 4 vorgesehen ist. An die Trennwand 4 schließt sich nach unten eine in gleicher Richtung verlaufende, die Hauptkammer 2 nach vorn begrenzende Wand 5 an, die einerseits in einen Boden 6 der Nebenkamer 3 und andererseits in den nicht gezeigten Boden der Hauptkammer 2 übergeht. Die Hauptkammer 2 ist dabei so bemessen, daß sie gegenüber der Nebenkammer 3 eine größere ölmenge aufnehmen kann. Dies ist dadurch begründet, daß an die Hauptkammer 2 die Saugseite einer nicht gezeigten Druckpumpe angeschlossen ist, die über ein entsprechendes Leitungssystem die Schmierstellen der Brennkraftmaschine während des Betriebs ständig mit öl zu versorgen hat. In der Trennwand 4 befinden sich eine relativ große Öffnung 7, die die beiden Kammern 2 und 3 miteinander verbindet. Die Öffnung 7 ist durch eine Klappe 8 verschließbar, die in ihrem oberen Bereich mittels einer sowohl an der Klappe 8 als auch an zwei seitlich derselben an der Trennwand 4 befestigten Lagerböcken 9 angreifenden Welle 10 schwenkbar gelagert ist. Die beiden Lagerböcke 9 sind winkel-förmig ausgebildet und mittels Schrauben 11 an der Trennwand 4 gehaltert. An der Klappe 8 greift ferner eine ebenfalls auf der Welle 10 gelagerte Feder 12 im Öffnungssinn an, die mit ihrem einen Schenkel 13 an der Klappe 8 angreift und sich mit ihrem anderen Schenkel 14 an der Trennwand 4 abstützt. Die Klappe 8 ist zwischen ihren Endstellungen über den Bereich eines spitzen Winkels verschwenkbar, wobei als Anschlag in der strich-punktiert gezeigten Offenstellung ein Rohrstutzen 15 vorgesehen ist. Dieser Rohrstutzen 15 ist das Ende einer nicht weiter dargestellten und mit einer zwischengeschalteten Druckpumpe versehenen Leitung, durch die die Hauptkammer 2 mit der Nebenkammer 3 verbunden ist. Durch diese Anordnung wird während des Betriebes der Brennkraftmaschine ständig Öl durch die Druckpumpe von der Nebenkammer 3 zur Hauptkammer 2 gefördert, das dann aus dem Rohrstutzen 15 austritt.An oil pan 1 of an internal combustion engine, partially shown in FIG. 1, is divided into two chambers 2 and 3 arranged essentially one behind the other, an inclined partition 4 being provided for the mutual delimitation of the two chambers 2, 3. At the bottom of the dividing wall 4 is a wall 5 which runs in the same direction and delimits the main chamber 2 to the front and which on the one hand merges into a floor 6 of the secondary chamber 3 and on the other hand into the floor of the main chamber 2, not shown. The main chamber 2 is dimensioned so that it can accommodate a larger amount of oil compared to the secondary chamber 3. This is due to the fact that the suction side of a pressure pump, not shown, is connected to the main chamber 2 and has to supply the lubrication points of the internal combustion engine with oil continuously during operation via a corresponding line system. There is a relatively large opening 7 in the partition 4, which connects the two chambers 2 and 3 to one another. The opening 7 can be closed by a flap 8, which is pivotally mounted in its upper region by means of a shaft 10 which engages both on the flap 8 and on two bearing blocks 9 attached laterally to the partition wall 4. The two bearing blocks 9 are angular and are held on the partition 4 by means of screws 11. On the flap 8 also acts on the shaft 10 mounted spring 12 in the opening direction, which engages with one leg 13 on the flap 8 and is supported with its other leg 14 on the partition 4. The flap 8 can be pivoted between its end positions over the range of an acute angle, a pipe socket 15 being provided as a stop in the open position shown in dash-dotted lines. This pipe socket 15 is the end of a line not shown and provided with an intermediate pressure pump through which the main chamber 2 is connected to the secondary chamber 3. With this arrangement, oil is continuously pumped through the pressure pump from the secondary chamber 3 to the main chamber 2 during operation of the internal combustion engine, which then emerges from the pipe socket 15.

Der Rohrstutzen 15 ist mit einem elastischen Ring 16 an einer Zwischenwand 17 oberhalb der Klappe 8 abgestützt und an seiner Mündung so abgeschrägt, daß die Klappe 8 bei Offenstellung die Mündung vollständig verschließt. Die Feder 12 an der Klappe 8 ist in ihrer Wirkung so abgestimmt, daß diese bei Inbetriebnahme der Brennkraftmaschine sofort durch den strömungsdruck des aus dem Rohrstutzen 15 austretenden Öls mit Sicherheit in Schließstellung versetzt wird. Hierdurch ist einerseits sichergestellt, daß in der Hauptkammer 2 stets ausreichend Öl zur Versorgung der Schmierstellen der Brennkraftmaschine zur Verfügung steht. Andererseits sorgt die Feder 12 beim Stillsetzen der Brennkraftmaschine für ein sofortiges öffnen der Klappe 8, so daß durch die große Öffnung 7 in der Zwischenwand 4 ein schneller Ausgleich des Ölspiegels über beide Kammern 2 und 3 erfolgen kann. Dies hat den großen Vorteil, daß sich jederzeit der genaue ölstand in der ölwanne unabhängig von der jeweiligen Temperatur mit Hilfe eines Meßstabes feststellen läßt.The pipe socket 15 is supported by an elastic ring 16 on an intermediate wall 17 above the flap 8 and bevelled at its mouth so that the flap 8 closes the mouth completely when open. The spring 12 on the flap 8 is coordinated in its effect so that when the internal combustion engine is started up, the flow pressure of the oil emerging from the pipe stub 15 immediately places it in the closed position with certainty. This ensures, on the one hand, that sufficient oil is always available in the main chamber 2 to supply the lubrication points of the internal combustion engine. On the other hand, the spring 12 provides for an immediate opening of the flap 8 when the internal combustion engine is stopped, so that the large opening 7 in the intermediate wall 4 enables the oil level to be quickly compensated for via both chambers 2 and 3. This has the great advantage that the exact oil level in the oil pan can be determined at any time with the help of a dipstick, regardless of the respective temperature.

Claims (4)

1. Schmiervorrichtung für Brennkraftmaschinen zur sicheren Ölversorgung bei großer Schräglage, mit einem Ölsumpf, der zumindest zwei in Längsrichtung der Brennkraftmaschine hintereinander angeordnete Kammern aufweist, an deren bei Schräglage oberer Hauptkammer die Saugseite einer die Schmierstellen der Brennkraftmaschine mit Öl versorgenden Druckpumpe angeschlossen ist. während die bei Schräglage untere Nebenkammer mit der Hauptkammer durch eine Förderleitung mit der Ölpumpe verbunden ist und wobei ferner zwischen den beiden Kammern eine den Ölspiegel ausgleichende Öffnung vorhanden ist,
dadurch gekennzeichnet, daß in der Hauptkammer (2) vor der Ölausgleichsöffnung (7) eine im Öffnungssinn federbelastete Klappe (8) angeordnet ist, zu deren Betätigung im Schließsinn beim Betrieb der Brennkraftmaschine ohnehin wirkende hydraulische, pneumatische, elektrische oder mechanische Mittel vorgesehen sind.1. Lubrication device for internal combustion engines for reliable oil supply at a large inclined position, with an oil sump which has at least two chambers arranged one behind the other in the longitudinal direction of the internal combustion engine, to the upper side of which, when the upper main chamber is inclined, the suction side of a pressure pump supplying the lubricating points of the internal combustion engine with oil is connected. while the lower sub-chamber in an inclined position is connected to the main chamber by a delivery line to the oil pump, and an opening that compensates for the oil level is also present between the two chambers,
characterized in that in the main chamber (2) in front of the oil compensation opening (7) a spring-loaded flap (8) is arranged, for the actuation of which in the closing direction during operation of the internal combustion engine hydraulic, pneumatic, electrical or mechanical means are provided anyway. 2. Schmiervorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die federbelastete Klappe (8) unterhalb der Mündung der den ölzulauf zur Hauptkammer (2) bewirkenden Förderleitung (15) angeordnet ist und daß das Schließmoment für die Klappe (8) durch den Strömungsdruck des aus der Förderieitung (15) ausströmenden Öls erzeugt wird.2. Lubrication device according to claim 1,
characterized in that the spring-loaded flap (8) is arranged below the mouth of the delivery line (15) effecting the oil supply to the main chamber (2) and in that the closing moment for the flap (8) is determined by the flow pressure of the oil flowing out of the delivery line (15) is produced. 3. Schmiervorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß das Rohrende der in der Hauptkammer mündenden Förderleitung (15) als Anschlag für die Klappe (8) bei Offenstellung dient.3. Lubricating device according to claims 1 and 2, characterized in that the tube end of the delivery line opening in the main chamber (15) serves as a stop for the flap (8) in the open position. 4. Schmiervorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Weg der Klappe (8) von einer Endstellung zur anderen innerhalb des Bereiches eines spitzen Winkels liegt.4. Lubricating device according to one of the preceding claims,
characterized in that the path of the flap (8) from one end position to the other lies within the range of an acute angle.
EP82110047A 1981-11-03 1982-10-30 Lubricating device for an internal-combustion engine Expired EP0078529B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110047T ATE13927T1 (en) 1981-11-03 1982-10-30 LUBRICATION DEVICE FOR ENGINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813143493 DE3143493A1 (en) 1981-11-03 1981-11-03 LUBRICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
DE3143493 1981-11-03

Publications (2)

Publication Number Publication Date
EP0078529A1 true EP0078529A1 (en) 1983-05-11
EP0078529B1 EP0078529B1 (en) 1985-06-19

Family

ID=6145447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110047A Expired EP0078529B1 (en) 1981-11-03 1982-10-30 Lubricating device for an internal-combustion engine

Country Status (3)

Country Link
EP (1) EP0078529B1 (en)
AT (1) ATE13927T1 (en)
DE (2) DE3143493A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938601A (en) * 1958-03-20 1960-05-31 Gen Motors Corp Engine oil pan
DE1296368B (en) * 1962-02-08 1969-05-29 H O Canfield Company Inc Method for producing a plastic hose
DE2903617A1 (en) * 1979-01-31 1980-08-14 Daimler Benz Ag Internal combustion engine for heavy goods vehicle - has variable level oil sump to increase braking effect of engine during braking

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938601A (en) * 1958-03-20 1960-05-31 Gen Motors Corp Engine oil pan
DE1296368B (en) * 1962-02-08 1969-05-29 H O Canfield Company Inc Method for producing a plastic hose
DE2903617A1 (en) * 1979-01-31 1980-08-14 Daimler Benz Ag Internal combustion engine for heavy goods vehicle - has variable level oil sump to increase braking effect of engine during braking

Also Published As

Publication number Publication date
DE3264307D1 (en) 1985-07-25
EP0078529B1 (en) 1985-06-19
ATE13927T1 (en) 1985-07-15
DE3143493A1 (en) 1983-05-11

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