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EP1081343B1 - Dry sump lubrication system for combustion engine - Google Patents

Dry sump lubrication system for combustion engine Download PDF

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Publication number
EP1081343B1
EP1081343B1 EP00115813A EP00115813A EP1081343B1 EP 1081343 B1 EP1081343 B1 EP 1081343B1 EP 00115813 A EP00115813 A EP 00115813A EP 00115813 A EP00115813 A EP 00115813A EP 1081343 B1 EP1081343 B1 EP 1081343B1
Authority
EP
European Patent Office
Prior art keywords
combustion engine
lubrication system
dry
internal
sump lubrication
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
Application number
EP00115813A
Other languages
German (de)
French (fr)
Other versions
EP1081343A1 (en
Inventor
Roland Stromsky
Alfred Koch
Michael Beer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1081343A1 publication Critical patent/EP1081343A1/en
Application granted granted Critical
Publication of EP1081343B1 publication Critical patent/EP1081343B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • F01M2001/126—Dry-sumps
    • 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
    • F01M2011/0083—Dry sumps
    • 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
    • F01M2011/0483—Filling or draining lubricant of or from machines or engines with a lubricant cartridge for facilitating the change

Definitions

  • the invention relates to dry sump lubrication for an internal combustion engine the preamble of claim 1.
  • This dry sump lubricating oil system includes oil sumps that are on an underside of a crankcase of the internal combustion engine are arranged.
  • US-A-5887564 discloses dry sump lubrication with an oil reservoir on the Front wall (Fig 10) of the internal combustion engine.
  • This container has a rectangular shape and extends in the amount of about 30% of the internal combustion engine.
  • the object of the invention is a dry sump lubrication for a To create internal combustion engine, the oil tank functional and spatial is conveniently arranged on the internal combustion engine.
  • the main advantages achieved with the invention are that the Oil container due to its space-saving shape to a simple construction of a Dry sump lubrication helps, which is easy with an internal combustion engine can be realized. That the oil tank on the internal combustion engine by means of elastic Bearing elements is held in position, ensures a decoupled i.e. low-noise Low-vibration interaction of the oil tank with the internal combustion engine.
  • the return line made of metal ensures on the one hand that it is the suction pressure of a Oil pump withstands.
  • the bellows serves to close the oil tank decouple and compensate for tolerances between him and the internal combustion engine.
  • the check valve ensures that when the engine is at rest the lubricating oil introduced into the oil container remains there and does not open undesirably flows into the internal combustion engine. Because of the opposite the internal combustion engine would have a relatively high level of lubricating oil in the oil tank the check valve lower lying cylinders and combustion chambers e.g. one Boxer internal combustion engine flooded and low-emission operation of the Internal combustion engine difficult.
  • the check valve and its pipe socket-like Housings are components that are easy to manufacture with reasonable effort can be installed between the return line and the internal combustion engine.
  • FIG.1 1 shows a view of an end face of an internal combustion engine with an oil container of a dry sump lubrication according to the invention
  • Fig. 2 2 shows a view in the direction of the arrow X in FIG. 1
  • Fig. 3 Components of Fig.1 at Y on a larger scale.
  • An internal combustion engine 1 with opposite and horizontally aligned Cylinder rows - boxer type - is provided with dry sump lubrication 2. at the dry sump lubrication 2, the lubricating oil is not in the crankcase or Sump of the internal combustion engine 1 is stored, but in an oil container 3.
  • the Oil reservoir 3 is connected via an inlet line 4 and a return line 5 an oil circuit of the internal combustion engine 1, not shown.
  • the internal combustion engine 1 In order to save space on the internal combustion engine 1 around the oil container 3 affiliate, it has a flat, rectangular cross-section. And he's upright arranged standing on an end face 6 of the internal combustion engine 1.
  • the Oil container 3 relatively close to the internal combustion engine 1, and it runs with short sides 7,8 in the longitudinal direction A-A and with long sides 9,10 in the transverse direction B-B the said internal combustion engine.
  • the oil tank 3 extends over a substantial part of the total height Gh of the internal combustion engine 1, the Oil tank 3 above one, on a lying cylinder - boxer / type - attached cylinder head 12 with a section that projects in sections 13 is provided, whereby the volume of the oil container 13 can be optimized.
  • the internal combustion engine 1 are a plurality of elastic bearing elements 14, 15, 16 provided by which the oil container 3 decouples on the internal combustion engine or on one of their housings is held in place.
  • the return line 5 is formed by a pipe socket 19 led away from the oil container 3 and the Bellows 18; the latter are made separately.
  • the return line 5 is a check valve 20 downstream, which between the return line 5 and a connection 21 of the internal combustion engine 1 is arranged.
  • Check valve 20 ensures that the oil level 22 in the oil reservoir 3 is at a standstill of the internal combustion engine the predetermined level remains and no oil penetrates the internal combustion engine 1.
  • the check valve 20 is surrounded by a pipe socket-like housing 23 and comprises an axially movable valve body 24 which is connected to a valve seat ring 25 of the Bellows 18 as a function of the operating state of the internal combustion engine 1 cooperates.

Landscapes

  • 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)

Description

Die Erfindung betrifft eine Trockensumpfschmierung für eine Brennkraftmaschine nach dem Oberbegriff des Patentanspruchs 1.The invention relates to dry sump lubrication for an internal combustion engine the preamble of claim 1.

Die DE 11 00 375 behandelt ein Trockensumpfschmierölsystem für Brennkraftmaschinen. Dieses Trockensumpfschmierölsystem umfaßt Ölsümpfe, die an einer Unterseite eines Kurbelgehäuses der Brennkraftmaschine angeordnet sind.DE 11 00 375 deals with a dry sump lubricating oil system for Internal combustion engines. This dry sump lubricating oil system includes oil sumps that are on an underside of a crankcase of the internal combustion engine are arranged.

Aus der US 2,430,097 geht ein Schmiersystem hervor, das einen entfernt von der Brennkraftmaschine angebrachten Ölbehälter aufweist. Zwischen Ölbehälter und Brennkraftmaschine sind eine Zulaufleitung und eine Rücklaufleitung für das entsprechende Schmiermedium vorgesehen.From US 2,430,097 a lubrication system emerges that removes one from the Internal combustion engine has attached oil tank. Between the oil tank and Internal combustion engine are an inlet line and a return line for the appropriate lubricant is provided.

Die US-A-5887564 offenbart eine Trockensumpfschmierung mit einem Ölbehälter an der Stirnwand (Fig 10) der Brennkrafmaschine. Dieser Behälter hat eine im Schnitt rechteckige Form und erstreckt sich inder Höhe auf ca 30% der Brennkraftmaschine.US-A-5887564 discloses dry sump lubrication with an oil reservoir on the Front wall (Fig 10) of the internal combustion engine. This container has a rectangular shape and extends in the amount of about 30% of the internal combustion engine.

Aufgabe der Erfindung ist es, eine Trockensumpfschmierung für eine Brennkraftmaschine zu schaffen, deren Ölbehälter funktionsgerecht und räumlich günstig an der Brennkraftmaschine angeordnet ist.The object of the invention is a dry sump lubrication for a To create internal combustion engine, the oil tank functional and spatial is conveniently arranged on the internal combustion engine.

Erfindungsgemäß wird diese Aufgabe durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen enthalten.According to the invention, this object is achieved by the characterizing features of Claim 1 solved. Further features embodying the invention are in the Subclaims included.

Die mit der Erfindung hauptsächlich erzielten Vorteile sind darin zu sehen, daß der Ölbehälter aufgrund seiner raumsparenden Form zu einer einfachen Konstruktion einer Trockensumpfschmierung beiträgt, die sich bei einer Brennkraftmaschine leicht verwirklichen läßt. Daß der Ölbehälter an der Brennkraftmaschine mittels elastischer Lagerelemente in Lage gehalten wird, gewährleistet ein entkoppeltes d.h. geräuschund schwingungsarmes Zusammenwirken des Ölbehälters mit der Brennkraftmaschine. Die Rücklaufleitung aus Metall stellt zum einen sicher, daß sie dem Saugdruck einer Ölpumpe standhält. Zum anderen dient der Faltenbalg dazu, den Ölbehälter zu entkoppeln und Toleranzen zwischen ihm und der Brennkraftmaschine auszugleichen. Schließlich stellt das Rückschlagventil sicher, daß bei ruhender Brennkraftmaschine das in den Ölbehälter eingebrachte Schmieröl dort verbleibt und nicht auf unerwünschte Weise in die Brennkraftmaschine einströmt. Aufgrund des gegenüber der Brennkraftmaschine relativ hohen Schmierölspiegels im Ölbehälter würden ohne das Rückschlagventil tiefer liegende Zylinder und Brennräume z.B. einer Boxer-Brennkraftmaschine geflutet und ein emmissionsarmer Betrieb der Brennkraftmaschine erschwert. Das Rückschlagventil und sein rohrstutzenartiges Gehäuse sind mit vertretbarem Aufwand herstellbare Komponenten, die einfach zwischen Rücklaufleitung und Brennkraftmaschine eingebaut werden können.The main advantages achieved with the invention are that the Oil container due to its space-saving shape to a simple construction of a Dry sump lubrication helps, which is easy with an internal combustion engine can be realized. That the oil tank on the internal combustion engine by means of elastic Bearing elements is held in position, ensures a decoupled i.e. low-noise Low-vibration interaction of the oil tank with the internal combustion engine. The return line made of metal ensures on the one hand that it is the suction pressure of a Oil pump withstands. On the other hand, the bellows serves to close the oil tank decouple and compensate for tolerances between him and the internal combustion engine. Finally, the check valve ensures that when the engine is at rest the lubricating oil introduced into the oil container remains there and does not open undesirably flows into the internal combustion engine. Because of the opposite the internal combustion engine would have a relatively high level of lubricating oil in the oil tank the check valve lower lying cylinders and combustion chambers e.g. one Boxer internal combustion engine flooded and low-emission operation of the Internal combustion engine difficult. The check valve and its pipe socket-like Housings are components that are easy to manufacture with reasonable effort can be installed between the return line and the internal combustion engine.

In der Zeichnung wird ein Ausführungsbeispiel der Erfindung gezeigt, das nachstehend näher beschrieben ist.In the drawing, an embodiment of the invention is shown, the following is described in more detail.

Es zeigen Fig.1 eine Ansicht auf eine Stirnseite einer Brennkraftmaschine mit einem Ölbehälter einer erfindungsgemäßen Trockensumpfschmierung, Fig. 2 eine Ansicht in Pfeilrichtung X der Fig.1, Fig. 3 Bauteile der Fig.1 bei Y in größerem Maßstab. Show it Fig.1 1 shows a view of an end face of an internal combustion engine with an oil container of a dry sump lubrication according to the invention, Fig. 2 2 shows a view in the direction of the arrow X in FIG. 1, Fig. 3 Components of Fig.1 at Y on a larger scale.

Eine Brennkraftmaschine 1 mit gegenüberliegenden und horizontal ausgerichteten Zylinderreihen - Boxerbauart - ist mit einer Trockensumpfschmierung 2 versehen. Bei der Trockensumpfschmierung 2 wird das Schmieröl nicht im Kurbelgehäuse bzw. Sumpf der Brennkraftmaschine 1 aufbewahrt, sondern in einem Ölbehälter 3. Der Ölbehälter 3 ist unter Vermittlung einer Zulaufleitung 4 und einer Rücklaufleitung 5 an einen nicht gezeigten Ölkreislauf der Brennkraftmaschine 1 angeschlossen. An internal combustion engine 1 with opposite and horizontally aligned Cylinder rows - boxer type - is provided with dry sump lubrication 2. at the dry sump lubrication 2, the lubricating oil is not in the crankcase or Sump of the internal combustion engine 1 is stored, but in an oil container 3. The Oil reservoir 3 is connected via an inlet line 4 and a return line 5 an oil circuit of the internal combustion engine 1, not shown.

Um den Ölbehälter 3 möglichst raumsparend an der Brennkraftmaschine 1 anzugliedern, weist er einen flachen, rechteckigen Querschnitt auf. Und er ist aufrecht stehend an einer Stirnseite 6 der Brennkraftmaschine 1 angeordnet. Außerdem ist der Ölbehälter 3 relativ nahe an die Brennkraftmaschine 1 herangeführt, und er verläuft mit kurzen Seiten 7,8 in Längsrichtung A-A und mit langen Seiten 9,10 in Querrichtung B-B der besagten Brennkraftmaschine. Darüber hinaus erstreckt sich der Ölbehälter 3 über einen wesentlichen Teil der Gesamthöhe Gh der Brennkraftmaschine 1, wobei der Ölbehälter 3 oberhalb eines, an einem liegenden Zylinder - Boxer-/Bauart - angebrachten Zylinderkopfs 12 mit einer diesen abschnittsweise überragenden Stufe 13 versehen ist, wodurch sich das Volumen des Ölbehälters 13 optimieren läßt. Zur Lagerung des aus Metall, Kunststoff oder dergl. bestehenden Ölbehälters 3 an der Brennkraftmaschine 1 sind mehrere elastische Lagerelemente 14,15,16 vorgesehen, durch die der Ölbehälter 3 entkoppelt an der Brennkraftmaschine bzw. an einem ihrer Gehäuse in Lage gehalten ist.In order to save space on the internal combustion engine 1 around the oil container 3 affiliate, it has a flat, rectangular cross-section. And he's upright arranged standing on an end face 6 of the internal combustion engine 1. In addition, the Oil container 3 relatively close to the internal combustion engine 1, and it runs with short sides 7,8 in the longitudinal direction A-A and with long sides 9,10 in the transverse direction B-B the said internal combustion engine. In addition, the oil tank 3 extends over a substantial part of the total height Gh of the internal combustion engine 1, the Oil tank 3 above one, on a lying cylinder - boxer / type - attached cylinder head 12 with a section that projects in sections 13 is provided, whereby the volume of the oil container 13 can be optimized. For storing the oil container 3 made of metal, plastic or the like the internal combustion engine 1 are a plurality of elastic bearing elements 14, 15, 16 provided by which the oil container 3 decouples on the internal combustion engine or on one of their housings is held in place.

An einer Unterseite 17 des Ölbehälters 3 verläuft die Rücklaufleitung 5, die aus Metall besteht und einen elastischen Faltenbalg 18 besitzt. Die Rücklaufleitung 5 wird gebildet durch einen vom Ölbehälter 3 weggeführten Rohrstutzen 19 und den Faltenbalg 18; letztere sind getrennt voneinander hergestellt. Der Rücklaufleitung 5 ist ein Rückschlagventil 20 nachgeschaltet, das zwischen der Rücklaufleitung 5 und einem Anschluß 21 der Brennkraftmaschine 1 angeordnet ist. Das Rückschlagventil 20 stellt sicher, daß bei ruhender Brennkraftmaschine der Ölstand 22 im Ölbehälter 3 auf dem vorgegebenen Niveau verbleibt und kein Öl in die Brennkraftmaschine 1 eindringt. Das Rückschlagventil 20 ist von einem rohrstutzenartigen Gehäuse 23 umgeben und umfaßt einen axial beweglichen Ventilkörper 24, der mit einem Ventilsitzring 25 des Faltenbalgs 18 in Abhängigkeit des Betriebszustands der Brennkraftmaschine 1 zusammenarbeitet.The return line 5, which is made of metal, runs on an underside 17 of the oil container 3 exists and has an elastic bellows 18. The return line 5 is formed by a pipe socket 19 led away from the oil container 3 and the Bellows 18; the latter are made separately. The return line 5 is a check valve 20 downstream, which between the return line 5 and a connection 21 of the internal combustion engine 1 is arranged. Check valve 20 ensures that the oil level 22 in the oil reservoir 3 is at a standstill of the internal combustion engine the predetermined level remains and no oil penetrates the internal combustion engine 1. The check valve 20 is surrounded by a pipe socket-like housing 23 and comprises an axially movable valve body 24 which is connected to a valve seat ring 25 of the Bellows 18 as a function of the operating state of the internal combustion engine 1 cooperates.

Claims (8)

  1. A dry-sump lubrication system for an internal-combustion engine for driving a motor vehicle, preferably a compact passenger car, which dry-sump lubrication system comprises an oil tank (3) which is connected to an oil circuit of the internal-combustion engine by way of a supply line (4) and a return line (5), characterized in that the oil tank (3) connected to the supply line (4) and the return line (5) has a flat, rectangular cross-section and is arranged in a vertical manner on a front end (6) of the internal-combustion engine (1), wherein the oil tank (3) extends relatively close to the internal-combustion engine (1) and extends with its short sides (7, 8) in the longitudinal direction (A-A) and with its long sides (9, 10) in the transverse direction of the internal-combustion engine (1) and, in addition, extends over a substantial part of the entire height (Gh) of the internal-combustion engine (1).
  2. A dry-sump lubrication system according to Claim 1, characterized in that above a housing of the internal-combustion engine (1) the oil tank (3) is provided with a step (13) projecting over the housing in order to increase its volume.
  3. A dry-sump lubrication system according to Claim 1, characterized in that resilient bearing elements (14, 15, 16) are provided for mounting the oil tank (3) on the internal-combustion engine (1).
  4. A dry-sump lubrication system according to Claim 1, characterized in that at least the return line (5) consists of metal and has a resilient folding bellows (18).
  5. A dry-sump lubrication system according to Claim 4, characterized in that the return line (5) is formed by the folding bellows (18) and a pipe socket (19) which are produced separately from each other.
  6. A dry-sump lubrication system according to one or more of the preceding Claims, characterized in that a non-return valve (20), which is connected to the internal-combustion engine (1), is arranged downstream of the return line (5).
  7. A dry-sump lubrication system according to Claim 6, characterized in that the non-return valve (20) is surrounded by a housing (23) like a pipe socket.
  8. A dry-sump lubrication system according to Claim 6 or 7, characterized in that the non-return valve (20) comprises a valve body (24) which co-operates with a valve seat ring (25) of the folding bellows (18).
EP00115813A 1999-09-04 2000-07-22 Dry sump lubrication system for combustion engine Expired - Lifetime EP1081343B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19942266 1999-09-04
DE19942266A DE19942266A1 (en) 1999-09-04 1999-09-04 Dry sump lubrication for an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1081343A1 EP1081343A1 (en) 2001-03-07
EP1081343B1 true EP1081343B1 (en) 2004-12-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115813A Expired - Lifetime EP1081343B1 (en) 1999-09-04 2000-07-22 Dry sump lubrication system for combustion engine

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EP (1) EP1081343B1 (en)
DE (2) DE19942266A1 (en)
ES (1) ES2230005T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017114394A1 (en) 2017-06-28 2019-01-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine, method for its production and motor vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257265A1 (en) * 2002-12-07 2004-06-24 Volkswagen Ag IC engine for field or sports vehicle with dry sump lubrication using separate oil container for storage of lubrication oil
DE102004038525A1 (en) * 2004-08-07 2006-02-23 Audi Ag Oil suction pipe attachment for use in internal combustion engine, has tubing region which is fixed over tubular shaped sealing and is in tangential contact with receptacle which comprises of profile
US7017546B1 (en) * 2004-10-28 2006-03-28 General Motors Corporation Dry sump oil tank assembly

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DE3720063A1 (en) * 1986-06-28 1988-01-07 Volkswagen Ag PISTON PISTON INTERNAL COMBUSTION ENGINE WITH DRY LUBRICATION
DE4037803A1 (en) * 1990-02-28 1991-08-29 Volkswagen Ag LUBRICATION AND / OR COOLING OIL SUPPLY FOR A MACHINE, ESPECIALLY A INTERNAL COMBUSTION ENGINE
US5402643A (en) * 1993-12-10 1995-04-04 Cummins Engine Company, Inc. Flexible oil drain tube for turbocharger
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017114394A1 (en) 2017-06-28 2019-01-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal combustion engine, method for its production and motor vehicle

Also Published As

Publication number Publication date
EP1081343A1 (en) 2001-03-07
ES2230005T3 (en) 2005-05-01
DE19942266A1 (en) 2001-03-15
DE50009001D1 (en) 2005-01-27

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