EP1319810A1 - Combustion engine with piston cooling and valve drive lubrication - Google Patents

Combustion engine with piston cooling and valve drive lubrication Download PDF

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Publication number
EP1319810A1
EP1319810A1 EP02027805A EP02027805A EP1319810A1 EP 1319810 A1 EP1319810 A1 EP 1319810A1 EP 02027805 A EP02027805 A EP 02027805A EP 02027805 A EP02027805 A EP 02027805A EP 1319810 A1 EP1319810 A1 EP 1319810A1
Authority
EP
European Patent Office
Prior art keywords
oil
bores
lubricating
nozzles
spray nozzles
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.)
Granted
Application number
EP02027805A
Other languages
German (de)
French (fr)
Other versions
EP1319810B1 (en
Inventor
Heribert Möller
Jens Türk
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP1319810A1 publication Critical patent/EP1319810A1/en
Application granted granted Critical
Publication of EP1319810B1 publication Critical patent/EP1319810B1/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
    • 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
    • F01M9/104—Lubrication of valve gear or auxiliaries of tappets
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits

Definitions

  • the invention relates to an internal combustion engine according to the generic term of claim 1.
  • Oil spray nozzles for cooling piston crowns.
  • the Oil spray nozzles are positioned on the inside of a crankcase and via an axially parallel to the crankshaft penetrating the crankcase Oil channel supplied with lubricating oil. About this oil channel too the lubricating nozzles for the lubrication of the valve lifters.
  • the oil spray nozzles and the lubrication nozzles are arranged in separate holes which is natural requires a large number of holes. To be flawless Ensuring cooling of the piston crowns is an exact positioning of the oil spray nozzles indispensable, which creates difficulties during assembly. Further provides the variety of holes for the oil spray nozzles and the lubricating nozzles represents a high manufacturing effort.
  • the invention has for its object the manufacturing cost for the attachment to keep the oil spray nozzles and the lubricating nozzles as low as possible and without affecting the functionality of these parts.
  • the oil spray nozzles used in the first holes are attached using a tab and only one screw both oil-tight and against twisting secured.
  • Figure 1 shows an example of a cross section through a V-engine. Is shown a cylinder bank 1.
  • the valve train consists of a roller tappet 2 with a camshaft 3.
  • the push rod is not shown here.
  • an oil spray nozzle 4 is provided, which counteracts the piston crown is directed.
  • the supply of the oil spray nozzle 4 and one Lubricating nozzle 5 with oil takes place via a common oil channel 6 which covers the entire Cylinder bank 1 penetrates axially parallel to a crankshaft.
  • the oil spray nozzle 4 and the lubricating nozzle 5 are concentric Bores 7, 8 introduced, which start from the inside of the crankcase and penetrate the oil channel 6 and end in a tappet guide 9.
  • the oil spray nozzle 4 is in an outgoing from the crankcase and in the oil passage 6 opening first bore 7 installed, the lubricating nozzle 5 in one of the oil channel 6 outgoing and in the tappet guide 9 second bore 8 installed.
  • the lubricating nozzle 5 is used with its peripheral jacket to guide the roller tappet 2, which has a longitudinal groove 11 on its plunger jacket 10 for this purpose in which the peripheral jacket of the lubricating nozzle 5 slides and the roller tappet 2 protects against twisting.
  • the lubricating nozzle 5 be screwed or pressed into the second bore 8.
  • the lubricating nozzle 5 supplies the roller tappet 2 with lubricating oil via a bore 14.
  • the oil spray nozzle 4 is for its attachment and simultaneous positioning a tab 12 connected.
  • the tab 12 is in turn by means of a screw 13 (Fig. 2) attached to the crankcase.
  • the tab 12 provides an anti-rotation device the oil spray nozzle 4.
  • a cylindrical shoulder 15 is used in the first hole 7 protrudes.
  • the oil spray nozzle 4 is held by the screw 13. (Fig. 2).
  • FIG. 2 An interior view of the crankcase is shown in FIG. 2.
  • the oil spray nozzle 4 is attached to the crankcase by means of the screw 13 and bracket 12 and secured against twisting.
  • the prefabricated unit from oil spray nozzle 4 and tab 12 can be installed positioned without much effort.

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

Abstract

The engine has the oil injection jets (4) and the lubricating jets (5) built into co-axial first (7) and second (8) borings. The first borings, for the oil injection jets, run from the interior of the crankcase to the oil channel (6). The second borings, to supply the roller tappets (2) with lubricating oil, run from the oil channel to the tappet guides (9).

Description

Die Erfindung bezieht sich auf eine Brennkraftmaschine gemäß dem Gattungsbegriff des Patentanspruches 1.The invention relates to an internal combustion engine according to the generic term of claim 1.

Für die Kühlung von Kolbenböden ist es üblich Ölspritzdüsen vorzusehen. Die Ölspritzdüsen werden positioniert auf der Innenseite eines Kurbelgehäuses befestigt und über einen das Kurbelgehäuse achsparallel zur Kurbelwelle durchdringenden Ölkanal mit Schmieröl versorgt. Über diesen Ölkanal werden auch die Schmierdüsen für die Schmierung der Ventilstößel versorgt. Die Ölspritzdüsen und die Schmierdüsen sind in getrennten Bohrungen angeordnet was natürlich eine Vielzahl an Bohrungen erforderlich macht. Um eine einwandfreie Kühlung der Kolbenböden sicherzustellen ist eine exakte Positionierung der Ölspritzdüsen unabdingbar, was bei der Montage Schwierigkeiten bereitet. Ferner stellt die Vielzahl von Bohrungen für die Ölspritzdüsen und die Schmierdüsen einen hohen Fertigungsaufwand dar.It is common to provide oil spray nozzles for cooling piston crowns. The Oil spray nozzles are positioned on the inside of a crankcase and via an axially parallel to the crankshaft penetrating the crankcase Oil channel supplied with lubricating oil. About this oil channel too the lubricating nozzles for the lubrication of the valve lifters. The oil spray nozzles and the lubrication nozzles are arranged in separate holes which is natural requires a large number of holes. To be flawless Ensuring cooling of the piston crowns is an exact positioning of the oil spray nozzles indispensable, which creates difficulties during assembly. Further provides the variety of holes for the oil spray nozzles and the lubricating nozzles represents a high manufacturing effort.

Der Erfindung liegt die Aufgabe zugrunde den Fertigungsaufwand für die Anbringung der Ölspritzdüsen und der Schmierdüsen möglichst gering zu halten und dies ohne die Funktionalität dieser Teile zu beeinträchtigen. The invention has for its object the manufacturing cost for the attachment to keep the oil spray nozzles and the lubricating nozzles as low as possible and without affecting the functionality of these parts.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Patentanspruches 1.This object is achieved by the characterizing features of the claim 1.

Dadurch, daß für die Ölspritzdüsen und die Schmierdüsen konzentrische Bohrungen vorgesehen sind und diese Bohrung zugleich den Ölkanal durchdringen, wird eine Vielzahl Bohrungen eingespart.The fact that concentric holes for the oil spray nozzles and the lubricating nozzles are provided and this hole penetrate the oil channel at the same time, a large number of holes are saved.

Eine vorteilhafte Weiterbildung ist Anspruch 2 zu entnehmen.An advantageous further development can be found in claim 2.

Dadurch, daß der Umfangsmantel der Schmierdüse zugleich der Verdrehsicherung dient wird ein gesondertes Bauteil für diese Funktion eingespart. Es ist ohne weiteres einzusehen, daß eine separate Verdrehsicherung aus Platzgründen nicht leicht anzuordnen ist.The fact that the circumferential jacket of the lubricating nozzle also prevents rotation a separate component is saved for this function. It is without further to see that a separate anti-rotation device not for space reasons is easy to arrange.

Eine weitere vorteilhafte Ausbildung kann Anspruch 3 entnommen werden.A further advantageous embodiment can be found in claim 3.

Die in die ersten Bohrungen eingesetzten Ölspritzdüsen werden mittels einer Lasche und nur einer Schraube sowohl öldicht gehalten als auch gegen Verdrehung gesichert.The oil spray nozzles used in the first holes are attached using a tab and only one screw both oil-tight and against twisting secured.

Ein Ausführungsbeispiel der Erfindung ist an Hand von Zeichnungen dargestellt. Es zeigt:

Fig. 1
einen Querschnitt mit Ölspritzdüse und Schmierdüse
Fig. 2
eine Innenansicht des Kurbelgehäuses mit Ölspritzdüse und einer Lasche zur Befestigung derselben am Kurbelgehäuse
An embodiment of the invention is shown with reference to drawings. It shows:
Fig. 1
a cross section with oil spray nozzle and lubricating nozzle
Fig. 2
an interior view of the crankcase with an oil spray nozzle and a tab for fastening the same to the crankcase

Figur 1 zeigt als Beispiel einen Querschnitt durch einen V-Motor. Dargestellt ist eine Zylinderbank 1. Der Ventiltrieb besteht aus einem Rollenstößel 2 mit Nockenwelle 3. Die Stößelstange ist hier nicht dargestellt.Figure 1 shows an example of a cross section through a V-engine. Is shown a cylinder bank 1. The valve train consists of a roller tappet 2 with a camshaft 3. The push rod is not shown here.

Zur Kühlung eines Kolbens ist eine Ölspritzdüse 4 vorgesehen, welche gegen den Kolbenboden gerichtet ist. Die Versorgung der Ölspritzdüse 4 und einer Schmierdüse 5 mit Öl erfolgt über einen gemeinsamen Ölkanal 6 der die gesamte Zylinderbank 1 achsparallel zu einer Kurbelwelle durchdringt.To cool a piston, an oil spray nozzle 4 is provided, which counteracts the piston crown is directed. The supply of the oil spray nozzle 4 and one Lubricating nozzle 5 with oil takes place via a common oil channel 6 which covers the entire Cylinder bank 1 penetrates axially parallel to a crankshaft.

Erfindungsgemäß werden die Ölspritzdüse 4 und Schmierdüse 5 in konzentrische Bohrungen 7, 8 eingebracht, welche vom Inneren des Kurbelgehäuses ausgehen und den Ölkanal 6 durchdringen und in einer Stößelführung 9 enden. Die Ölspritzdüse 4 wird in eine vom Kurbelgehäuse ausgehende und im Ölkanal 6 mündende erste Bohrung 7 eingebaut, die Schmierdüse 5 in eine vom Ölkanal 6 ausgehende und in der Stößelführung 9 mündende zweite Bohrung 8 eingebaut.According to the invention, the oil spray nozzle 4 and the lubricating nozzle 5 are concentric Bores 7, 8 introduced, which start from the inside of the crankcase and penetrate the oil channel 6 and end in a tappet guide 9. The oil spray nozzle 4 is in an outgoing from the crankcase and in the oil passage 6 opening first bore 7 installed, the lubricating nozzle 5 in one of the oil channel 6 outgoing and in the tappet guide 9 second bore 8 installed.

Die Schmierdüse 5 dient mit ihrem Umfangsmantel der Führung des Rollenstößels 2, der zu diesem Zweck an seinem Stößelmantel 10 eine Längsnut 11 aufweist in welcher der Umfangsmantel der Schmierdüse 5 gleitet und den Rollenstößel 2 vor einer Verdrehung schützt. Zur Befestigung kann die Schmierdüse 5 in die zweite Bohrung 8 eingeschraubt oder eingepreßt werden. Die Schmierdüse 5 versorgt über eine Bohrung 14 den Rollenstößel 2 mit Schmieröl.The lubricating nozzle 5 is used with its peripheral jacket to guide the roller tappet 2, which has a longitudinal groove 11 on its plunger jacket 10 for this purpose in which the peripheral jacket of the lubricating nozzle 5 slides and the roller tappet 2 protects against twisting. The lubricating nozzle 5 be screwed or pressed into the second bore 8. The lubricating nozzle 5 supplies the roller tappet 2 with lubricating oil via a bore 14.

Die Ölspritzdüse 4 ist zu ihrer Befestigung und gleichzeitigen Positionierung mit einer Lasche 12 verbunden. Die Lasche 12 wiederum wird mittels einer Schraube 13 (Fig. 2 ) am Kurbelgehäuse befestigt. Die Lasche 12 stellt eine Verdrehsicherung der Ölspritzdüse 4 dar.The oil spray nozzle 4 is for its attachment and simultaneous positioning a tab 12 connected. The tab 12 is in turn by means of a screw 13 (Fig. 2) attached to the crankcase. The tab 12 provides an anti-rotation device the oil spray nozzle 4.

Zur Abdichtung der Ölspritzdüse 4 dient ein zylindrischer Absatz 15 der in die erste Bohrung 7 ragt. Gehalten wird die Ölspritzdüse 4 von der Schraube 13. (Fig. 2).To seal the oil spray nozzle 4, a cylindrical shoulder 15 is used in the first hole 7 protrudes. The oil spray nozzle 4 is held by the screw 13. (Fig. 2).

In der Fig. 2 ist eine Innenansicht des Kurbelgehäuses dargestellt. Die Ölspritzdüse 4 wird mittels der Schraube 13 und Lasche 12 am Kurbelgehäuse befestigt und gegen Verdrehung gesichert. Die vorgefertigte Einheit aus Ölspritzdüse 4 und Lasche 12 läßt sich ohne großen Montageaufwand positioniert einbauen.An interior view of the crankcase is shown in FIG. 2. The oil spray nozzle 4 is attached to the crankcase by means of the screw 13 and bracket 12 and secured against twisting. The prefabricated unit from oil spray nozzle 4 and tab 12 can be installed positioned without much effort.

Claims (3)

Brennkraftmaschine mit Kolbenkühlung und Schmierung eines Ventiltriebes, bei der Ölspritzdüsen zur Kühlung eines Kolbenbodens und Schmierdüsen zur Schmierung eines Ventiltriebes über einen gemeinsamen Ölkanal mit Öl versorgt werden und der Ölkanal ein Kurbelgehäuse achsparallel zu einer Kurbelwelle in voller Länge durchdringt, dadurch gekennzeichnet, daß die Ölspritzdüsen (4) und die Schmierdüsen (5) in koaxiale erste und zweite Bohrungen (7, 8) eingebaut sind, wobei erste Bohrungen (7) für den Einbau der Ölspritzdüsen (4) von Innenraum des Kurbelgehäuses ausgehen und im Ölkanal (6) münden und zweite Bohrungen (8) zur Versorgung von Rollenstößeln (2) mit Schmieröl vom Ölkanal (6) ausgehen und in Stößelführungen (9) münden, daß in die ersten Bohrungen (7) die Ölspritzdüsen (4) orientiert eingebaut sind und daß in die zweiten Bohrungen (8) die Schmierdüsen (5) eingebaut sind, welche gleichzeitig der Verdrehsicherung dienen.Internal combustion engine with piston cooling and lubrication of a valve train, in which oil spray nozzles for cooling a piston crown and lubrication nozzles for lubrication of a valve train are supplied with oil via a common oil channel and the oil channel penetrates a crankcase in full length parallel to a crankshaft, characterized in that the oil spray nozzles ( 4) and the lubricating nozzles (5) are installed in coaxial first and second bores (7, 8), the first bores (7) for installing the oil spray nozzles (4) starting from the interior of the crankcase and opening into the oil channel (6) and the second Bores (8) for supplying roller tappets (2) with lubricating oil extend from the oil channel (6) and open into tappet guides (9) such that the oil spray nozzles (4) are installed in the first bores (7) and that the second bores ( 8) the lubricating nozzles (5) are installed, which also serve to prevent rotation. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das einem Rollenstößel (2) zugewandte freie Ende der Schmierdüse (5) in eine Längsnut (11) eines Stößelmantels (10) eingreift, derart, daß der Rollenstößel (2) axiale Bewegungen ungehindert ausführen kann, jedoch gegen Verdrehung gesichert ist. Internal combustion engine according to claim 1, characterized in that the free end of the lubricating nozzle (5) facing a roller tappet (2) engages in a longitudinal groove (11) of a tappet jacket (10) in such a way that the roller tappet (2) can execute axial movements unimpeded, but is secured against twisting. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Ölspritzdüsen (4) mittels Laschen (12) und je einer Schraube (13) am Kurbelgehäuse befestigt sind und zur Abdichtung und Verdrehsicherung mittels eines zylindrischen Ansatzes (15) in den ersten Bohrungen (7) stecken.Internal combustion engine according to claim 1, characterized in that the oil spray nozzles (4) are fastened to the crankcase by means of tabs (12) and one screw (13) each and are inserted in the first bores (7) for sealing and securing against rotation by means of a cylindrical extension (15) ,
EP20020027805 2001-12-14 2002-12-12 Combustion engine with piston cooling and valve drive lubrication Expired - Lifetime EP1319810B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10161610 2001-12-14
DE2001161610 DE10161610A1 (en) 2001-12-14 2001-12-14 Internal combustion engine with piston cooling and lubrication of a valve train

Publications (2)

Publication Number Publication Date
EP1319810A1 true EP1319810A1 (en) 2003-06-18
EP1319810B1 EP1319810B1 (en) 2007-01-24

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Family Applications (1)

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EP20020027805 Expired - Lifetime EP1319810B1 (en) 2001-12-14 2002-12-12 Combustion engine with piston cooling and valve drive lubrication

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EP (1) EP1319810B1 (en)
DE (2) DE10161610A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180085935A (en) * 2017-01-20 2018-07-30 두산인프라코어 주식회사 Adaptor for a roller tappet of an engine and a roller tappet assembly of an engine including the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214839A1 (en) * 1992-05-05 1993-11-11 Audi Ag Valve drive for IC engine - involves lift valve operated in opening direction by cam against force of pneumatic spring
US5503116A (en) * 1993-12-23 1996-04-02 Mercedes-Benz Ag Arrangement for supplying liquids to a piston
FR2745329A1 (en) * 1996-02-23 1997-08-29 Renault IC-engine lubrication circuit
JPH09317428A (en) * 1996-06-03 1997-12-09 Aisan Ind Co Ltd Valve mechanism for engine
EP1077322A1 (en) * 1999-08-16 2001-02-21 Caterpillar Inc. Internal combustion engine piston pin lubrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214839A1 (en) * 1992-05-05 1993-11-11 Audi Ag Valve drive for IC engine - involves lift valve operated in opening direction by cam against force of pneumatic spring
US5503116A (en) * 1993-12-23 1996-04-02 Mercedes-Benz Ag Arrangement for supplying liquids to a piston
FR2745329A1 (en) * 1996-02-23 1997-08-29 Renault IC-engine lubrication circuit
JPH09317428A (en) * 1996-06-03 1997-12-09 Aisan Ind Co Ltd Valve mechanism for engine
EP1077322A1 (en) * 1999-08-16 2001-02-21 Caterpillar Inc. Internal combustion engine piston pin lubrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180085935A (en) * 2017-01-20 2018-07-30 두산인프라코어 주식회사 Adaptor for a roller tappet of an engine and a roller tappet assembly of an engine including the same
US20190353057A1 (en) * 2017-01-20 2019-11-21 Doosan Infracore Co., Ltd. Adapter for roller tappet of engine and engine roller tappet assembly including same
US10975736B2 (en) * 2017-01-20 2021-04-13 Doosan Infracore Co., Ltd. Adapter for roller tappet of engine and engine roller tappet assembly including same

Also Published As

Publication number Publication date
EP1319810B1 (en) 2007-01-24
DE10161610A1 (en) 2003-06-26
DE50209333D1 (en) 2007-03-15

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