EP1277927B1 - Dispositif pour monter un carter d'huile sur un block moteur - Google Patents

Dispositif pour monter un carter d'huile sur un block moteur Download PDF

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Publication number
EP1277927B1
EP1277927B1 EP02015324A EP02015324A EP1277927B1 EP 1277927 B1 EP1277927 B1 EP 1277927B1 EP 02015324 A EP02015324 A EP 02015324A EP 02015324 A EP02015324 A EP 02015324A EP 1277927 B1 EP1277927 B1 EP 1277927B1
Authority
EP
European Patent Office
Prior art keywords
support body
engine block
oil pan
connecting means
screw
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
EP02015324A
Other languages
German (de)
English (en)
Other versions
EP1277927A1 (fr
Inventor
Valérie Claudet
Gerad Bertin
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP1277927A1 publication Critical patent/EP1277927A1/fr
Application granted granted Critical
Publication of EP1277927B1 publication Critical patent/EP1277927B1/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
    • 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
    • F01M2011/0054—Fastening to the cylinder block

Definitions

  • the present invention relates to a device for supporting an oil pan on an engine block of an internal combustion engine.
  • the French patent application FR 2 782 742 A1 discloses a device for supporting an oil pan on an engine block in which a circumferential frame is attached to the engine block and to the oil pan. These two frames are connected to each other via tabs attached by means of threaded bolts. Between the frame serving as a sealing element elastic membrane is provided.
  • the object of the present invention is therefore to propose a device for supporting a first component on a second component, which has improved damping properties even in the low-frequency range.
  • the sealing elements simultaneously fulfill a bearing or fastening function
  • the sealing function and the bearing function of two different elements are perceived in the present device.
  • the bearing function is fulfilled by the second connection means, while the membrane serves exclusively to seal the connection.
  • the second connection means are used in the proposed device only for fixing the second support body at a certain distance from the first support body and no longer for bracing the device.
  • the second connecting means can thus be optimized for their vibration-absorbing function. They preferably form a support for the second support body, which has a very low material hardness.
  • first and / or second support body are advantageously designed as rotating bodies and substantially rigid so that a reliable fixing and sealing of the device according to the invention on the first component or the second component can be achieved.
  • the first connection means for fixing the first support body to the first component preferably comprise screws which can be screwed into corresponding bores of the first component.
  • the second connecting means for example, each have a buffer element of an elastomer of low hardness, which forms an elastic support for the second support body.
  • an elastomer is particularly suitable for absorbing vibrations in a wide frequency range, so that vibrations with a low frequency, such as those that occur during idling of the internal combustion engine, can be effectively absorbed.
  • the second supporting body, and with it the second component is therefore optimally decoupled from the first supporting body or the first component by the second connecting means so that the vibration behavior of the device is significantly improved compared with the known devices.
  • the mechanical stresses to which the connecting means are exposed are substantially reduced, so that their number can be correspondingly reduced in comparison to known devices.
  • the improved vibration behavior also results in a significantly improved acoustic behavior of the internal combustion engine.
  • the membrane which acts as a sealing element, in turn, has a small thickness, so that their stiffness is negligible. Due to this low rigidity, vibrations can hardly be transmitted from the first component to the second component even through the membrane.
  • the membrane is preferably dimensioned in such a way that it is slightly bent when the second support body is mounted on the first support body or on the first component. In this case, the membrane is not mechanically stretched when used as intended and vibration transmission through the membrane is completely prevented.
  • the second connection means only have to bear the static load of the second component.
  • the number of second connecting means can therefore be reduced to a minimum, with a corresponding distribution
  • the second support body comprises a number of connection openings corresponding to the number of second connection means and the second connection means comprise a screw with a screw shaft and a screw head, the screw shaft through the connection openings of the second support body into a corresponding bore in the first component is screwed, wherein between the screw head and the second support body is arranged in each case a buffer element made of an elastomer.
  • the screws are screwed only so far in the first component until the desired distance between the first and the second component is set.
  • the buffer elements which are arranged between the screw head and the second support body, in this case form a support for the second support body, on which it rests loosely. If the buffer element is made of a soft elastomer as described above, there is an optimal reduction in the transmission of vibrations to the second component.
  • Such a configuration is characterized by the particularly simple installation.
  • the first support element in the region of the holes in the first component each have a connection opening through which the screw shaft of the second connecting means is feasible and the screw shaft has a first contact body facing shoulder surface, which after Screwing the screw rests against the first support body.
  • the shoulder surface of the screw shank prevents the second connecting means from being screwed in too far into the corresponding bores and consequently fixes the distance between the first and the second supporting body in the assembled device.
  • the second connecting means is tightened, the first supporting body is pressed against the first component by the shoulder surface of the screw shaft, so that in this region the first supporting body can be fixed to the first component by the second connecting means.
  • the first support body facing shoulder surface of the second support body can be formed in a simple manner by a sleeve which is pushed onto the shank of the screw.
  • the second support body rests loosely on the support formed by the second connection means and is therefore movable in the direction of the first support body.
  • a spacer made of a soft elastic material can be arranged between the second supporting body and the first supporting body or the first component.
  • the spacer is formed, for example, as a sleeve which can be pushed onto the second connecting means.
  • the membrane is preferably firmly connected to the first and second support body.
  • the membrane may, for example, be bonded by vulcanization to the first and / or second support body.
  • the tightness of the connection can be improved by providing one or more sealing lips in the area of a contact surface of the first support body with respect to the first component, which for example are integrally formed with the membrane of elastomer.
  • Such sealing lips can also be arranged between the second supporting body and the second component.
  • the second support body is formed integrally with the second component.
  • the support body can be formed for example by an angled portion of the component.
  • the connection between the first and the second component is predominantly produced by the thin membrane. Due to the small thickness of the membrane it is permeable to noise or electromagnetic fields. In certain cases, it may therefore be advantageous if the device has a screening device which extends over the gap between the first support body and the second support body. Such a shielding device, with appropriate design, can prevent the escape of noise or electromagnetic oscillations.
  • Such a shielding device has, in one possible embodiment, a shielding plate which is fixed inside or outside the device on one of the support bodies.
  • the shield is fixed to the first support body or integral with formed the first support body, as this increases the rigidity of the first support body and thus the reliable fixing and sealing of the support body is simplified to the first component.
  • a determination of the shielding outside of the device is advantageous because such a shield simultaneously represents a protection against external influences.
  • a device according to the present invention is advantageously suitable for mounting an oil pan on the engine block of an internal combustion engine. It is irrelevant whether the oil pan consists of any metal or a dimensionally stable plastic.
  • the Fig. 1 and 2 each represent a section through an embodiment of a device according to the invention for supporting a first component on a second component.
  • the illustrated embodiment is, for example, a device 10 for positioning an oil pan 12 on the engine block 14 of an internal combustion engine.
  • the device 10 comprises a first support body 16, for example, a circumferentially formed metal ring which is fixed by means of first connecting means, such as screws 18, to the engine block (see Fig. 2 ).
  • the first support body 16 is connected by means of a membrane 20 made of an elastomer with a second support body 22, which in turn is fixed to the oil pan.
  • the second support body 20 may be connected in any way with the oil pan 12.
  • the second support body 22 is integrally formed with the oil pan 12, for example, as a connecting flange of the oil pan. This can be generated in particular by a bent edge of the oil pan.
  • the membrane 20 is preferably glued to the first support body 16 and the second support body 22 or vulcanized to this. It thus ensures a sealing function between the two support bodies 16 and 22.
  • sealing lips 24 are preferably arranged between the first support body 16 and the engine block 14, which may be formed integrally with the membrane 20.
  • the membrane 20 only fulfills a sealing function in the device according to the invention.
  • a certain number of second connection means 26 is provided, each forming a support for the second support body 22.
  • the second connection means 26 preferably comprises a screw 28 which is screwed through a connection opening 30 in the second support body 22 into a corresponding bore of the engine block.
  • a buffer element 34 in the form of a sleeve of soft elastomer is arranged between the screw head 32 and the second support body 22. This sleeve is simply pushed onto the shaft 36 of the screw before screwing the screw 28.
  • a washer 35 e.g. made of metal between the screw head 32 and the buffer member 34.
  • the shank 36 of the screw advantageously has a thickening, so that a shoulder surface 38 facing the first support body 16 is formed, which rests against the first support body 16 after the screw 28 has been screwed in.
  • the shoulder surface 38 of the screw shank 36 prevents the screw 28 from being screwed too far into the corresponding bores and consequently defines the distance between the first and the second support body.
  • the screw 28 is tightened, the first supporting body 16 is pressed against the engine block 14 by the shoulder surface of the screw shaft, so that in this area the fixing of the first Support body 16 can be made on the engine block 14 by the second connecting means.
  • FIG. 3 A plan view of an inventive device is in the Fig. 3 shown. It can be seen clearly that the support bodies 16 and 22 have a small lateral extent and only in the region of the connecting means 18 and 26 each have a broadening exhibit. As a result, the installation of the device is considerably simplified, since the screws of the individual connection means are accessible from below.
  • first connection means 18 is generally substantially higher than that of the second connection means 26.
  • the first connection means serve to seal the first support body to the engine block. It is clear that to ensure sufficient tightness of the distance between each two first connecting means must be correspondingly small and, accordingly, their number must be comparatively high.
  • the function of the second connecting means I limited to the pure determination of the oil pan at a certain distance from the first support body. Due to the good damping properties of the device described, the second connection means are hardly exposed to mechanical stresses. Their number can therefore be kept to a minimum, with only a statically determined suspension of the oil pan must be respected.
  • second connecting means 26 may be arranged, for example, at four points of the circumference of the oil pan.
  • FIG. 4 Another embodiment of a device according to the invention is in Fig. 4 shown.
  • a spacer 40 made of a soft elastic material between the second support body 22 and the first support body 16 is disposed in the region of the second connecting means 26.
  • the spacer is formed for example as a sleeve which is pushed onto the shaft 36 of the screw.
  • the spacer 40 serves to restrict the mobility of the second support body 22 in the direction of the first support body 16.
  • the resonance frequency of the system can be set to a desired value. In the case of the oil pan and the engine block, in this way, the resonance frequency can be set to the lowest possible value at which the internal combustion engine has hardly any vibrations.
  • Fig. 5 and 6 show in each case a section through a further embodiment of the device according to the invention, which is particularly advantageous in cases in which noise or electromagnetic fields occur in the interior of the internal combustion engine, which can not be shielded by the thin membrane.
  • a shield plate 42 is externally mounted on the first support body 16 which extends across the gap between the first support body 16 and the second support body 22 away. This shielding plate 42 can effectively prevent leakage of unwanted noise or electromagnetic radiation with appropriate design.
  • the outside of the device attached shielding provides effective protection for the membrane against external influences.
  • the shielding plate is formed integrally with the first support body, as this significantly increases the rigidity of the first support body and thus the reliable fixing and sealing of the support body is simplified to the first component.

Landscapes

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

Claims (13)

  1. Dispositif (10) de montage d'un carter d'huile (12) sur un bloc moteur (14), présentant
    un premier corps d'appui (16) qui peut être immobilisé sur le bloc moteur (14) par des premiers moyens de liaison (18) et un deuxième corps d'appui (22) qui peut être immobilisé sur le carter d'huile (12) ou y est immobilisé,
    une membrane (20) en un élastomère qui relie l'un à l'autre de manière souple le premier corps d'appui (16) et le deuxième corps d'appui (22),
    le deuxième corps d'appui (22) pouvant être immobilisé sur le premier corps d'appui (16) et/ou sur le bloc moteur (14) au moyen de plusieurs deuxièmes moyens de liaison (26), à distance du premier corps d'appui (16),
    caractérisé en ce que
    les deuxièmes moyens de liaison (26) comprennent tous :
    un élément tampon (34) qui forme un appui élastique pour le deuxième corps d'appui (22) et
    une vis (28) dont la tige (36) est vissée par une ouverture de liaison (30) ménagée dans le deuxième corps d'appui (22) dans un alésage correspondant du bloc moteur (14), la tige (36) de la vis (28) présentant un épaississement qui forme une surface d'épaulement (38) tournée vers le premier corps d'appui (16) et qui repose sur le premier corps d'appui (16) lorsque la vis (28) est en position vissée.
  2. Dispositif selon la revendication 1, caractérisé en ce que le deuxième corps d'appui (22) comporte un nombre d'ouvertures de liaison (30) qui correspond au nombre des deuxièmes moyens de liaison (26), un élément tampon (34) en un élastomère étant disposé entre la tête (32) de chaque vis et le deuxième corps d'appui (22).
  3. Dispositif selon la revendication 2, caractérisé en ce que dans la zone occupée par les deuxièmes moyens de liaison (26), un écarteur (40) en un matériau élastique est disposé entre le deuxième corps d'appui (22) et le premier corps d'appui (16) ou le bloc moteur (14).
  4. Dispositif selon la revendication 3, caractérisé en ce que la surface d'épaulement (38) tournée vers le premier corps d'appui (16) est formée par une douille qui est passée sur la tige (36) de la vis (28).
  5. Dispositif selon la revendication 4, caractérisé en ce que l'écarteur (40) est configuré comme douille qui peut être passée sur les deuxièmes moyens de liaison (26).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que le premier et/ou le deuxième corps d'appui sont configurés comme corps périphériques.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que la membrane (20) est reliée solidairement au premier et au deuxième corps d'appui.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'une ou plusieurs lèvres d'étanchéité (24) formées en particulier d'un seul tenant avec la membrane (20) en élastomère sont prévues dans la zone d'une surface de pose du premier corps d'appui (16) sur le bloc moteur (14).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que le deuxième corps d'appui (22) est formé d'un seul tenant avec le carter d'huile (12).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé par un ensemble de protection qui s'étend dans l'interstice situé entre le premier corps d'appui (16) et le deuxième corps d'appui (22).
  11. Dispositif selon la revendication 10, caractérisé en ce que l'ensemble de protection comporte une tôle de protection (42) fixée sur le premier corps d'appui (16).
  12. Dispositif selon la revendication 10, caractérisé en ce que la tôle de protection (42) est formée d'un seul tenant avec le premier corps d'appui (16).
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce que le carter d'huile (12) est constitué d'un métal ou d'une matière synthétique non déformable.
EP02015324A 2001-07-16 2002-07-10 Dispositif pour monter un carter d'huile sur un block moteur Expired - Lifetime EP1277927B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10133353 2001-07-16
DE10133353A DE10133353C2 (de) 2001-07-16 2001-07-16 Einrichtung zum Lagern einer Ölwanne an einem Motorblock

Publications (2)

Publication Number Publication Date
EP1277927A1 EP1277927A1 (fr) 2003-01-22
EP1277927B1 true EP1277927B1 (fr) 2010-09-08

Family

ID=7691189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015324A Expired - Lifetime EP1277927B1 (fr) 2001-07-16 2002-07-10 Dispositif pour monter un carter d'huile sur un block moteur

Country Status (3)

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EP (1) EP1277927B1 (fr)
AT (1) ATE480699T1 (fr)
DE (2) DE10133353C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033904A1 (de) * 2005-07-15 2007-01-18 Dichtungstechnik G. Bruss Gmbh & Co. Kg Gehäuseverbundteil für ein Kraftfahrzeugaggregat
DE102006025745A1 (de) * 2006-05-31 2007-12-06 Rehau Ag + Co. Metall-Kunststoff-Hybrid-Ölwanne
DE102007046584B4 (de) 2007-09-27 2016-10-20 Robert Bosch Gmbh Verfahren und Steuereinrichtung zur Ansteuerung eines Fahrzeugantriebsystems eines Fahrzeugs
CN104554068B (zh) * 2015-01-21 2016-08-24 安徽江淮汽车股份有限公司 一种汽车的防火墙与隔音垫的连接总成以及汽车

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT308474B (de) * 1969-03-20 1973-07-10 List Hans Körperschallhemmender Verschalungsbauteil zur schallisolierenden Verkleidung von Maschinen, insbesondere Brennkraftmaschinen
US4066058A (en) * 1976-05-12 1978-01-03 Deere & Company Vibration isolation system
CH612474A5 (en) * 1976-07-08 1979-07-31 Saurer Ag Adolph Sound-insulated oil sump for internal combustion engines
DE2825927A1 (de) * 1978-06-14 1980-01-03 Volkswagenwerk Ag Schallisolierend gekapselte brennkraftmaschine
DE4141881C2 (de) * 1991-12-18 1996-04-25 Steyr Daimler Puch Ag Schallgedämpfte Hubkolbenbrennkraftmaschine
EP0921298B1 (fr) * 1997-03-28 2007-05-16 Isuzu Motors Limited Moteur
FR2782742B1 (fr) 1998-08-28 2005-07-15 Renault Fixation etanche et amortie d'un carter d'huile sous un bloc moteur

Also Published As

Publication number Publication date
DE10133353C2 (de) 2003-06-18
ATE480699T1 (de) 2010-09-15
DE50214641D1 (de) 2010-10-21
EP1277927A1 (fr) 2003-01-22
DE10133353A1 (de) 2003-02-13

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