EP1987236B1 - Verfahren und vorrichtung zur ölschmierung eines verbrennungsmotors und verbrennungsmotor mit derartiger vorrichtung - Google Patents

Verfahren und vorrichtung zur ölschmierung eines verbrennungsmotors und verbrennungsmotor mit derartiger vorrichtung Download PDF

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Publication number
EP1987236B1
EP1987236B1 EP07731563A EP07731563A EP1987236B1 EP 1987236 B1 EP1987236 B1 EP 1987236B1 EP 07731563 A EP07731563 A EP 07731563A EP 07731563 A EP07731563 A EP 07731563A EP 1987236 B1 EP1987236 B1 EP 1987236B1
Authority
EP
European Patent Office
Prior art keywords
oil
internal combustion
combustion engine
rolling bearings
bearings
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.)
Not-in-force
Application number
EP07731563A
Other languages
English (en)
French (fr)
Other versions
EP1987236A1 (de
Inventor
Ali Hocine
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1987236A1 publication Critical patent/EP1987236A1/de
Application granted granted Critical
Publication of EP1987236B1 publication Critical patent/EP1987236B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • 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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries

Definitions

  • the present invention relates to a method and an oil lubrication device for an internal combustion engine, and an internal combustion engine comprising such a lubricating device.
  • the object of the invention is to provide a lubrication method adapted to an internal combustion engine comprising rolling bearings.
  • This object is achieved by a process involving the delivery of pressurized oil to the cylinder head where it is evaporated to generate an oil mist for lubricating bearing bearings.
  • the invention thus proposes a concept of a lubrication circuit of an internal combustion engine having bearings on bearings, which use both pressurized oil and oil in the form of vapor or mist. This method allows the lubrication of the rolling bearings and thus the reduction of the average losses by friction of the engine in order to obtain a reduction of the fuel consumption of an internal combustion engine.
  • the invention also relates to an internal combustion engine having an engine block, a housing and a cylinder head and bearing bearings, the oil from an oil tank and being pressurized by a pump. oil.
  • This device comprises conduits for conveying the pressurized oil which open into the cylinder head through orifices shaped to obtain the vaporization of the oil and form an oil mist.
  • This device further includes chimneys through which the oil mist is diffused in the bottom of the housing.
  • This concept meets both the constraints of conventional internal combustion engine lubrication and bearing specific constraints.
  • lubrication systems are based on the principle of drip as in motorcycles or by systems of vaporization of the oil in the bottom casing by means of nozzles or wash bottles.
  • the engine oil is conveyed under pressure to the cylinder head, where an oil mist is formed which is used both in the cylinder head for the lubrication of the bearings of the shaft. cams and in the crankcase for lubrication of crankshaft bearing bearings and crankshaft bearings.
  • Spraying of the oil is preferably achieved by puncturing bores to which the oil is pressurized and where, as they exit to the bearings to be lubricated, the ambient oil mist is generated.
  • the oil used then descends to the casing by chimneys, according to the invention pierced at the height of the mandolin (that is to say at the level swept by the heads of rods).
  • deflectors are added to the chimney walls in order to give the oil an optimized orientation towards the counterweight of the crankshaft.
  • This arrangement improves the mixing and diffusion of the oil mist in the lower housing. This mixing ensures the lubrication and cooling of the crank pin and trunnion bearings. Thus, the lubrication of piston rings and shirts is also guaranteed at a lower cost.
  • the figure 1 shows very schematically the arrangement of the various elements of the device of the invention in an internal combustion engine.
  • the internal combustion engine is represented by its three main parts, namely an engine block 1, a housing 2 and a cylinder head 3.
  • the engine block 1 comprises the cylinders represented by a jacket 4 and a piston 5 with a connecting rod 6 connected to a crankshaft 7 by crank pinch bearings 8.
  • the crankshaft 7 is mounted on bearings in the form of journal bearings 9.
  • the yoke 3 comprises two camshafts 10, 11 mounted in the yoke 3 on bearings 12, 13.
  • the camshafts 10, 11 respectively act on one or the other of two latches 14, 15 respectively acting on a valve 16 or a valve 17.
  • the engine block 1 and the cylinder head 3 comprise first ducts 18 for conveying pressurized oil to the cylinder head 3.
  • the first ducts 18 open into the cylinder head 3 through orifices 19 (see FIG. Figures 2 and 3 ) shaped to obtain the vaporization of the oil at the moment of its exit in the cylinder head 3.
  • the engine block 1 further comprises chimneys 20 for driving the vaporized oil, collected after its use in the cylinder head 3, to the engine block 1 where the chimneys 20 open through orifices 21 shaped to bring the vaporized oil in. the engine block 1 and in the top of the housing 2 in the form of an oil mist.
  • the device of the invention is thus designed and implanted in the heat engine so that oil from an oil reservoir usually formed by the casing 2, but can also come from a tank outside the engine , is pressurized by an oil pump and is conveyed by the first ducts 18 to the cylinder head 3 and more precisely to the latches 14, 15 of the rockers controlling the valves 16, 17.
  • the latches 14, 15 are drilled in such a way as to lubricating the hydraulic stops of the camshaft with pressurized oil, and then lubricating the bearing bearings 12, 13 of the two camshafts 10, 11 with vaporized oil.
  • the oil vaporized and not retained by the parts to be lubricated is collected and conveyed by the chimneys 20 to the engine block 1 in which the vaporized oil is directed firstly to the crankshaft bearings, namely the crank pin bearings 8 and the trunnion bearings 9.
  • the oil vapors are also directed towards the underside of the pistons 5 and towards the wall of the jackets 4.
  • the chimneys 20 are advantageously provided with deflectors 23 arranged on the walls of the jackets. chimneys as illustrated on the figure 4 .
  • the invention can be applied to engines whose camshaft is provided with conventional bearings but having at the bottom of the housing, for example for the crank pins and / or the trunnions of the rolling bearings.
  • the figure 2 schematically recalls the lubrication of a camshaft having conventional plain bearings by pressurized oil, the oil then leaving through holes ensuring the arrival of pressurized oil to the hydraulic stops of the camshaft .
  • the plain bearings of the camshafts are lubricated by a channel 24 in which the pressurized oil is conveyed directly to the bearings by the channels 24. Moreover, a mist is generated at the level of the drilled pawls.
  • the camshaft also comprises rolling bearings.
  • the pressurized oil arrives through the first ducts 18 from which it exits through the holes 19 to lubricate the hydraulic stops of the camshafts. Then, the pressurized oil continues to a shaped bore to obtain vaporization of the oil as it exits the cylinder head 3.

Landscapes

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

Claims (9)

  1. Verfahren zum Schmieren einer Brennkraftmaschine, die Lagerelemente auf Wälzlagern enthält, das das Führen des mit Druck beaufschlagten Öls zum Zylinderkopf enthält, wo es verdampft wird, um einen Ölnebel zu erzeugen, der der Schmierung der Wälzlager der Lagerelemente dient.
  2. Verfahren nach Anspruch 1, wobei die durch den Ölnebel geschmierten Wälzlager Kurbelzapfenlagerelement-Wälzlager sind.
  3. Verfahren nach Anspruch 1 oder 2, wobei die durch den Ölnebel geschmierten Wälzlager Drehzapfenlagerelement-Wälzlager sind.
  4. Verfahren nach einem der vorhergehenden Ansprüche, wobei die durch den Ölnebel geschmierten Wälzlager Nockenwellenlagerelement-Wälzlager sind.
  5. Brennkraftmaschine, die dazu ausgebildet ist, das Verfahren nach Anspruch 1 auszuführen, wobei die Maschine einen Maschinenblock (1), eine Ölwanne (2) und einen Zylinderkopf (3) enthält und Lagerelemente auf Wälzlagern aufweist, wobei das Öl von einem Ölvorratsbehälter stammt und durch eine Ölpumpe mit Druck beaufschlagt wird,
    dadurch gekennzeichnet, dass sie Leitungen (18) zum Führen von mit Druck beaufschlagtem Öl enthält, wobei diese Leitungen (18) in den Zylinderkopf (3) durch Öffnungen (25) münden, die dazu ausgelegt sind, die Verdampfung des Öls zu erreichen und einen Ölnebel zu bilden, der der Schmierung der Wälzlager der Lagerelemente dient, und Schächte (20) enthält, durch die der Ölnebel im unteren Teil der Ölwanne diffundiert wird.
  6. Brennkraftmaschine nach Anspruch 5, dadurch gekennzeichnet, dass die Öffnungen (25) Durchlochungen (25) sind, die in Unterbrecherhebeln von Ventilkipphebeln der Maschine ausgebildet sind.
  7. Brennkraftmaschine nach Anspruch 5 oder 6, gekennzeichnet durch Ablenkeinrichtungen (23), die am Ausgang der Schächte (20) angeordnet sind, um den Ölnebel zu den Drehzapfen der Kurbelwelle zu orientieren.
  8. Brennkraftmaschine nach Anspruch 5, deren Nockenwelle Lagerelemente mit durch den Ölnebel geschmierten Wälzlagern enthält.
  9. Brennkraftmaschine nach Anspruch 5, deren Kurbelwelle Drehzapfen und/oder Kurbelzapfen zugeordnet sind, die Lagerelemente mit durch den Ölnebel geschmierten Wälzlagern enthalten.
EP07731563A 2006-02-24 2007-02-01 Verfahren und vorrichtung zur ölschmierung eines verbrennungsmotors und verbrennungsmotor mit derartiger vorrichtung Not-in-force EP1987236B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0650648A FR2897891B1 (fr) 2006-02-24 2006-02-24 Procede et dispositif de lubrification a huile pour un moteur a combustion interne ainsi que moteur a combustion comportant un tel dispositif
PCT/FR2007/050735 WO2007096545A1 (fr) 2006-02-24 2007-02-01 Procede et dispositif de lubrification a huile pour un procede moteur a combustion interne ainsi que moteur a combustion comportant un tel dispositif

Publications (2)

Publication Number Publication Date
EP1987236A1 EP1987236A1 (de) 2008-11-05
EP1987236B1 true EP1987236B1 (de) 2009-11-11

Family

ID=36591388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07731563A Not-in-force EP1987236B1 (de) 2006-02-24 2007-02-01 Verfahren und vorrichtung zur ölschmierung eines verbrennungsmotors und verbrennungsmotor mit derartiger vorrichtung

Country Status (5)

Country Link
EP (1) EP1987236B1 (de)
AT (1) ATE448388T1 (de)
DE (1) DE602007003196D1 (de)
FR (1) FR2897891B1 (de)
WO (1) WO2007096545A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115325418B (zh) * 2022-09-14 2024-04-09 重庆悠澜能源装备有限公司 一种润滑油脂循环回收系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2775020B1 (fr) * 1998-02-19 2000-05-05 Peugeot Systeme de lubrification des organes mecaniques d'une culasse de moteur
JP4344460B2 (ja) * 2000-07-11 2009-10-14 本田技研工業株式会社 エンジン本体のシール構造
JP4545361B2 (ja) * 2001-09-18 2010-09-15 株式会社やまびこ ４サイクル内燃機関用冷却装置

Also Published As

Publication number Publication date
EP1987236A1 (de) 2008-11-05
WO2007096545A1 (fr) 2007-08-30
DE602007003196D1 (de) 2009-12-24
FR2897891A1 (fr) 2007-08-31
FR2897891B1 (fr) 2008-05-30
ATE448388T1 (de) 2009-11-15

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