EP0903474B1 - Dispositif pour encapsuler un arbre intermédiaire d'un moteur à combustion interne - Google Patents

Dispositif pour encapsuler un arbre intermédiaire d'un moteur à combustion interne Download PDF

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Publication number
EP0903474B1
EP0903474B1 EP98117181A EP98117181A EP0903474B1 EP 0903474 B1 EP0903474 B1 EP 0903474B1 EP 98117181 A EP98117181 A EP 98117181A EP 98117181 A EP98117181 A EP 98117181A EP 0903474 B1 EP0903474 B1 EP 0903474B1
Authority
EP
European Patent Office
Prior art keywords
oil
arrangement according
trough
crankcase
encapsulating device
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
EP98117181A
Other languages
German (de)
English (en)
Other versions
EP0903474A1 (fr
Inventor
Volker Cornelius
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0903474A1 publication Critical patent/EP0903474A1/fr
Application granted granted Critical
Publication of EP0903474B1 publication Critical patent/EP0903474B1/fr
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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation
    • 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
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
    • F01M2001/0276—Pressure lubrication using lubricating pumps characterised by the pump driving means driven by a balancer shaft
    • 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
    • F01M2011/0029—Oilsumps with oil filters

Definitions

  • the invention relates to an arrangement for encapsulating a secondary shaft of a reciprocating piston internal combustion engine with a crankcase and one arranged on the crankcase Oil pan according to the preamble of claim 1.
  • the present invention has for its object an improved arrangement of to provide the above type, with the above disadvantages be overcome.
  • the secondary shaft supporting structure separate, trough-shaped capsule device with an open side, a housing and a tub rim running around the open side is provided, wherein the capsule device is designed and flanged to the support structure such that the capsule device encloses the counter shaft together with the bearing and against encapsulates the oil pan.
  • Fixing means are expediently on the capsule device on the crankcase side formed, for example, as mounting holes or as at least one clip closure and are particularly preferably formed around the tub rim.
  • the capsule device has in the tub floor an oil intake opening, which is arranged such that when the capsule device is mounted An intake port of an oil pump with this oil intake opening on the crankcase side connected is.
  • an uninterrupted oil supply to the oil pump is achieved in that the oil intake opening oil pan side has a snorkel, which in an oil sump in the Oil pan protrudes and preferably a snorkel connection on the oil pan side at the oil intake opening is arranged.
  • the support structure on the oil pan side one of an outer edge of the support structure spaced, circumferential web, with a contour of the tub edge Capsule device essentially follows this web, so that the capsule device is on this web can be flanged, can advantageously a large part of the in the crankcase circulating lubricating oil are directed past the capsule device and only one smaller, predetermined part of the lubricating oil penetrates into the secondary shaft to lubricate it Capsule device.
  • the capsule device in the trough bottom at least one oil drain opening has a defined oil-conducting connection between the oil pan in an advantageous manner and an interior of the capsule device created, whereby the interior the capsule device is connected to an oil circulation in the crankcase
  • the capsule device is advantageous integrally formed as an injection molded part.
  • FIGS 1 to 4 show parts of a crank mechanism of an internal combustion engine for explanation with a arranged under a crankcase on a support structure 3, as Balance shaft 20 trained auxiliary shaft.
  • the reciprocating piston internal combustion engine has a crankcase, not shown, with one therein rotating crankshaft 1. Lateral walls of the crankcase are over the crankshaft center 2 in the direction of an oil pan, not shown, into one Flange level E guided. At this flange level E includes in the direction of the oil pan connected to the walls of the crankcase, labeled 3 in total Component, which is referred to below as support structure 3. This is essentially plate-shaped and extends in the longitudinal direction L and transverse direction Q of Crankcase and separates through its connection to the opening area of the crankcase surrounding flange opposite the crank drive designated overall with 4 the oil pan essentially.
  • the surface of the support structure 3 facing the crank mechanism 4 is at least in the region of Crank cheeks 6 of the crank mechanism 4 in accordance with the rotation there Conrod violin structure formed.
  • the Support structure 3 On its surface 7 facing away from the crank mechanism 4 and facing the oil pan, the Support structure 3 formed in one piece and of the same material, each an undivided bearing 8 and 9 bearing blocks 10 and 11.
  • the support structure 3 is essentially rectangular, with longitudinal sides 12 and 13 mounting eyes 14 are arranged for performing screw connections.
  • the long side 12 is essentially covered in the illustration in FIG. 1. With the Screw connections, the support structure 3 is fixed in the flange plane E on the crankcase.
  • each end extends between the long sides 12 and 13 End faces 15 and 16.
  • One end face 15 is designed as an end wall 17 and takes including the bearing block 10 integrally.
  • auxiliary shaft In the assembled state of the support structure 3 according to Figures 2, 3 and 4 is in the bearings 8 and 9 rotatably held a total of 20 designated auxiliary shaft.
  • This is integral and provided in one piece with a leveling compound 21 and initially from the end face 16 inserted through the bearing 9 and then through the bearing 8.
  • stepped pin 22 of the auxiliary shaft 20th On one plugged in Condition of the bearing 8 penetrating, stepped pin 22 of the auxiliary shaft 20th is a drive wheel 23 designed as a chain wheel and then a further balancing mass 24 put on.
  • This arrangement ensures together with one at the On the inside of the end wall 17, the collar 26 of the secondary shaft 20 has an axial bearing, while the bearing 9 is designed as a floating bearing.
  • the floating mounting of the balancing mass 21 ensures that the space is optimally approached this balancing mass 21 to the support structure 3.
  • This has a section 7a appropriately shaped contour surfaces 27 to create a free passage.
  • Crossing stiffening ribs 30 are between the two bearing blocks 10 and 11 arranged, which intersect at intersection points 31.
  • the auxiliary shaft 20 is driven by an output gear 40 of the crankshaft 1. Together with the drive wheel 23, this driven wheel 40 defines a drive plane T for a chain 41. As best seen in Figures 2 and 3, the chain 41 drives with her Back to reverse the direction of rotation, the auxiliary shaft 20.
  • the chain 41 drives with her Back to reverse the direction of rotation, the auxiliary shaft 20.
  • Deflection wheels 42 are provided, one of these deflection wheels 42 in a bearing 43 End wall 17 is held rotatably.
  • Another deflection wheel 42 acts as a drive wheel for an oil pump, not shown, of the reciprocating internal combustion engine. This is for optimal Space utilization between the inside 25 of the end wall 17, the surface 7 and next to the auxiliary shaft 20, detachably arranged on the support structure 3.
  • Area 7 carries fastening points 44 for this purpose.
  • the support structure 3 has a channel system for lubricating oil. From the flange level E starting in the area of the bearing block 11 extends essentially transverse inflow channel 45, which extends to the bearing 9 there. In one shaft 46 protruding from surface 7 extends parallel to the auxiliary shaft 20 a supply channel 47 which intersects the inflow channel 45 and which feeds in the Lubricating oil to bearing 8 promotes. The shaft 46 receiving the supply channel 47 runs along a series of crossing points 31.
  • the surface 7 continues to bear a web 32 which is a capsule device according to the invention described below Drive shaft 20 adjacent.
  • This web 32 extends from the end wall 17 spaced and parallel to the long side 13 along the end face 16 and again after internally offset essentially parallel to the other long side 12.
  • window-like openings 33 between them and the web 32 arranged for the passage of lubricating oil of the crank mechanism 4 in the oil pan.
  • FIG. 5 to 9 show the aforementioned capsule device 49 according to the invention in one preferred embodiment.
  • This comprises a trough-like housing 50, which in a circumferential contour and in a peripheral tub rim which is only partially visible in FIG. 5 64 the contour of the web 32 of FIG. 4 is adapted such that it is on the web 32 can be flanged and the auxiliary shaft 20 encapsulates against an oil pan.
  • the capsule device 49 further includes, in the preferred embodiment shown, mounting eyes 52, Clip connector 54, a snorkel flange with cover 56, a snorkel 58 and one Oil intake opening 60.
  • FIG. 6 shows in detail the area of the oil suction opening 60 which, in addition to the snorkel flange with cover 56, also comprises a sieve 62.
  • the cover 56 with the snorkel 58 (not visible in FIG. 6) is arranged on the oil pan side, ie in the installed position below the capsule device 49.
  • a connecting piece 66 formed integrally with the housing 50 is provided on an opposite side facing the crankcase or the support structure 3 in an interior of the capsule device 49.
  • this connecting piece 66 interacts with an intake port 67 of the oil pump in such a way that the oil pump is connected to the snorkel 58 and pumps and delivers oil from an oil sump.
  • connection piece 66 and the oil pump or their suction piece 67 are arranged in such a way that this connection is established automatically by fitting the capsule device 49. Additional installation work for connecting the oil pump is therefore not necessary.
  • the intake port 67 acts as a centering for the housing 50.
  • the strainer 62 is first inserted into the oil intake opening 60 and the cover 56 is placed on it. In this assembly stage, the latter abuts an elevation 68 which runs around the oil intake opening 60 and is accordingly spaced apart from the strainer 62.
  • the cover 56 is friction-welded onto the elevation 68, as a result of which the elevation 68 partially melts and the lid 56 moves downward in FIG. 6 until it rests on the sieve 66.
  • FIG. 7 the snorkel 58 is shown in solid lines for a specific internal combustion engine, while a shortened snorkel 58 for a specific internal combustion engine is shown in dashed lines with a different stroke volume and / or a different installation position.
  • FIG. 10 shows a detailed illustration of a fastening eye 52 on the housing 50
  • Fastening the capsule device 49 is a screw on the oil pan side in the direction of arrow 70 53 performed by the mounting eye 52 and either on the crankcase side Crankcase or screwed to the attachment points 44 ( Figure 1) of the support structure 3.
  • An annular web 59 integrally formed with the housing 50 in a depression 61 is plastically pressed by contacting the screw head 53 a and makes one separate sealing ring unnecessary.
  • the screw torque is based on the crankcase or on the lead frame, but not on the housing 50. This means that no independent occurs Dissolve by creeping the housing material.
  • the clip connectors 54 shown in detail in FIGS. 11 and 12 can be used in addition to the Fastening eyes 52 or be provided instead.
  • the clip connector 54 includes a hook-shaped element 55, which is attached to the housing 50 via an elastic arm 57 is. When pushed onto the web 32, the hook-shaped element 55 engages around the Web 32, as shown in Figure 12, and thus secures the housing 50 in a predetermined Position below the crankcase. An inserted sealing cord 72 seals the housing 50 on a circumferential bearing surface on the web 32 against the interior of the surrounding oil pan.
  • the clip connections 54 have the advantage that they are the same can be removed again simply and quickly, as previously by "clipping on" the housing 50 were manufactured.
  • the capsule device 49 can also be closed again quickly and easily disassemble, for example for later maintenance or repair work.
  • Fig. 13 shows the lid 56 with sieve 62 in an enlarged view in a view from the Crankcase side.
  • the screen 62 is preferably tilted at a predetermined angle arranged to the oil pan or to the oil sump contained in it, so that the Pump oil pumped through sieve 62 along sieve 62 along an enlarged sieve area must overcome. In this way, the extracted oil is freed of air bubbles that build up on it separate the screen 62.
  • the capsule device 49 advantageously prevents the rotating ones from “splashing" Counter shaft 20 in the oil sump, which leads to an undesirable foaming of the oil and unnecessary loss of work.
  • the suction snorkel integrated in the capsule device 49 58 for the oil pump reduces the total number of parts when assembling the Internal combustion engine.
  • the capsule device 49 for example, only takes on the auxiliary shaft 20 oil extracted for their lubrication and the oil flowing out of the crank mechanism becomes of such an embodiment completely past the auxiliary shaft 20 into the oil pan directed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Claims (14)

  1. Dispositif pour encapsuler un arbre intermédiaire d'un moteur alternatif à combustion interne comprenant un carter moteur et une cuvette-carter à huile disposée sur le carter moteur, l'arbre intermédiaire étant monté dans une structure de support (3) fixée au carter moteur dans des paliers correspondants (8, 9), caractérisé en ce qu'un dispositif d'encapsulage (49) sans fonction de palier pour l'arbre intermédiaire, en forme de cuvette, séparé par rapport à la structure de support (3) retenant l'arbre intermédiaire en le supportant, est pourvu d'un côté ouvert, d'un boítier (50), et d'un bord de cuvette (64) entourant le côté ouvert, le dispositif d'encapsulage (49) étant réalisé de telle sorte et étant bridé sur la structure de support (3) de telle sorte que le dispositif d'encapsulage (49) entoure l'arbre intermédiaire conjointement avec le support de palier (8, 9) et réalise une isolation contre la cuvette-carter à huile.
  2. Dispositif selon la revendication 1, caractérisé en ce que des moyens de fixation (52, 54) du côté du carter moteur sont réalisés sur le dispositif d'encapsulage (49).
  3. Dispositif selon la revendication 2, caractérisé en ce que les moyens de fixation sont des oeillets de fixation (52) à travers lesquels des vis (53) peuvent être enfoncées et vissées du côté du carter moteur.
  4. Dispositif selon la revendication 2, caractérisé en ce que les moyens de fixation comprennent au moins une fermeture par clipsage (54).
  5. Dispositif selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les moyens de fixation (52, 54) sont réalisés sur le bord de cuvette (64).
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'encapsulage (49) présente sur le boítier (50) une ouverture d'aspiration d'huile (60) qui est disposée de telle sorte que dans l'état monté du dispositif d'encapsulage (49) une tubulure d'aspiration d'une pompe à huile soit connectée du côté du carter moteur à cette ouverture d'aspiration d'huile (60).
  7. Dispositif selon la revendication 6, caractérisé en ce que l'ouverture d'aspiration d'huile (60) est pourvue d'un filtre (62).
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que l'ouverture d'aspiration d'huile (60) du côté de la cuvette-carter à huile présente un schnorchel (58) qui pénètre dans un carter d'huile de la cuvette-carter à huile.
  9. Dispositif selon la revendication 7, caractérisé en ce que la position de montage du filtre (62) est oblique par rapport à la trajectoire d'écoulement de l'huile.
  10. Dispositif selon l'une quelconque des revendications 6 à 9, caractérisé en ce qu'une tubulure de schnorchel avec un couvercle (56) est disposée sur l'ouverture d'aspiration d'huile (60) du côté de la cuvette-carter à huile.
  11. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que la structure de support (3) du côté de la cuvette-carter à huile présente une nervure (32) périphérique espacée d'un bord extérieur de la structure de support, un contour du bord de cuvette (64) du dispositif d'encapsulage (49) suivant essentiellement cette nervure (32), de sorte que le dispositif d'encapsulage (49) puisse être bridé à cette nervure (32).
  12. Dispositif selon la revendication 11, caractérisé en ce que des moyens de fixation (54) prévus sur le dispositif d'encapsulage (49) s'adaptent par fixation immmédiate sur cette nervure (32).
  13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'encapsulage (49) présente dans le boítier (50) au moins une ouverture d'évacuation d'huile.
  14. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'encapsulage (49) est réalisé d'une pièce sous la forme d'une pièce moulée par injection.
EP98117181A 1997-09-19 1998-09-10 Dispositif pour encapsuler un arbre intermédiaire d'un moteur à combustion interne Expired - Lifetime EP0903474B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19741448A DE19741448A1 (de) 1997-09-19 1997-09-19 Anordnung zum Einkapseln einer Nebenwelle einer Hubkolben-Brennkraftmaschine
DE19741448 1997-09-19

Publications (2)

Publication Number Publication Date
EP0903474A1 EP0903474A1 (fr) 1999-03-24
EP0903474B1 true EP0903474B1 (fr) 2002-07-10

Family

ID=7842989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117181A Expired - Lifetime EP0903474B1 (fr) 1997-09-19 1998-09-10 Dispositif pour encapsuler un arbre intermédiaire d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP0903474B1 (fr)
DE (2) DE19741448A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329762A1 (de) * 2003-07-02 2005-01-27 Mtu Friedrichshafen Gmbh Abdeckplatte für ein Kurbelgehäuse
CN110259885A (zh) * 2019-06-26 2019-09-20 浙江吉利控股集团有限公司 一种用于车辆的发动机平衡系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321751A1 (de) * 1983-06-16 1984-12-20 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Brennkraftmaschine fuer fahrzeuge, insb. fuer motorraeder
US4677948A (en) * 1986-05-29 1987-07-07 Chrysler Motors Corporation Lubricating system for an engine balancing device
CA1328588C (fr) * 1987-05-15 1994-04-19 Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co., Ltd .) Moteur a combustion interne
JPH0211418A (ja) * 1988-06-29 1990-01-16 Honda Motor Co Ltd 車両の駆動装置
DE4204522C1 (en) 1992-02-15 1993-04-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De IC engine silencer with lower cover shell - has oil flow shell aperture opening into noise damping chamber
DE4323220C1 (de) 1993-07-12 1994-09-22 Porsche Ag Vorrichtung zum Führen von Schmieröl in einer Brennkraftmaschine
US5535643A (en) * 1993-11-12 1996-07-16 General Motors Corporation Anti-rattle engine balancer which drives associated oil pump
US5479886A (en) * 1995-05-12 1996-01-02 Cummins Engine Engine oil capacitor
DE19620233A1 (de) * 1996-05-20 1997-11-27 Audi Ag Vorrichtung zum Ausgleichen von Massenmomenten an Hubkolben-Brennkraftmaschinen

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Publication number Publication date
DE19741448A1 (de) 1999-03-25
EP0903474A1 (fr) 1999-03-24
DE59804711D1 (de) 2002-08-14

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