EP1741884A2 - Carter d'huile en particulier pour moteur à combustion - Google Patents

Carter d'huile en particulier pour moteur à combustion Download PDF

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Publication number
EP1741884A2
EP1741884A2 EP06116308A EP06116308A EP1741884A2 EP 1741884 A2 EP1741884 A2 EP 1741884A2 EP 06116308 A EP06116308 A EP 06116308A EP 06116308 A EP06116308 A EP 06116308A EP 1741884 A2 EP1741884 A2 EP 1741884A2
Authority
EP
European Patent Office
Prior art keywords
wall
protective membrane
oil
oil sump
oil pan
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.)
Withdrawn
Application number
EP06116308A
Other languages
German (de)
English (en)
Other versions
EP1741884A3 (fr
Inventor
Thomas Jessberger
Klaus Gessner
Thomas Schleiden
Ines Klamert
Michael Daiber
Alexander Korn
Andreas Weber
Ingo Koch
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
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 Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1741884A2 publication Critical patent/EP1741884A2/fr
Publication of EP1741884A3 publication Critical patent/EP1741884A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to an oil pan, in particular for an internal combustion engine, according to the preamble of claim 1.
  • the oil pan is mounted on the underside of the crankcase of the engine and receives the engine oil.
  • the engine may need to be parked on the ground and the oil sump located on the bottom of the engine must accept the weight of the engine. If the engine is parked in an inclined position or on uneven ground, individual ribs on the underside of the oil sump are subjected to very high loads, which could cause these ribs to break.
  • Another problem is the resonance amplification of the engine vibrations via the oil sump.
  • the engine vibrations are partially transferred to the oil pan despite measures for vibration isolation, in the same frequency resonates, which can cause considerable noise due to the relatively large resonator of the oil pan.
  • the invention is based, to improve the protection of an oil pan from damage with simple constructive measures the task. This protection should be accompanied by appropriate without significant increase in weight of the oil pan.
  • the noise which can be caused by a resonant oil sump, should also be contained in an advantageous manner.
  • the protective device of the oil pan according to the invention is designed as a flexible and oil-tight protective membrane covering the inner wall of the oil pan.
  • This solution has the advantage that in the event of a force acting from the outside on the oil pan high force that can lead to destruction of the wall of the oil pan, the oil in the interior is retained despite leakage in the wall of the protective membrane.
  • the protective membrane is firmly connected to the oil pan and follows the contour of the inner wall of the oil pan, so that the capacity of the oil pan through the protective membrane is practically not limited.
  • the flexible, film-like protective membrane also causes a noise attenuation.
  • the energy of the vibrations introduced into the oil sump, in particular the engine vibrations, is at least partially absorbed by the protective membrane in contact with the inner wall of the oil sump.
  • This noise attenuation can be further increased, that between the inner wall and the flexible protective membrane, a cavity is formed, which is suitably enclosed gas-tight by the protective membrane, or a mat is inserted.
  • This cavity is formed, for example, by providing support contour elements between the inner wall and the protective membrane, which keep the protective membrane at a distance from the inner wall.
  • These spacers or support contour elements can be molded onto the protective membrane according to an advantageous embodiment.
  • the support contour elements keep the protective membrane expedient to an approximately constant distance from the inner wall of the oil pan.
  • the air cushion enclosed between the inner wall and the protective membrane acts together with the flexible membrane as an acoustic damper system and helps to reduce the noise emissions, in particular of the crank mechanism.
  • the protective diaphragm is suitably fixedly connected to a seal arranged at the upper edge of the oil sump, via which the oil sump is vibration-isolated from the crankcase of the engine. It may also be advantageous to inject the protective membrane to this seal, ie to carry out the seal including the protective membrane as a common injection-molded component.
  • the protective membrane is made of a flexible, resilient material, possibly of the same material as the gasket.
  • the protective membrane covers the entire interior of the oil pan and extends to the seal, ensuring that no surface of the inner wall of the oil pan comes into direct contact with the oil. Regardless of the location of a possible damage to the oil pan, this ensures that the oil is collected by the protective membrane and can not escape through the leak beaten wall.
  • oil pan 1 for an internal combustion engine of a motor vehicle consists of plastic and is produced in particular by injection molding.
  • the inner wall of the oil pan is covered by a flexible, resilient, foil-like protective membrane 4.
  • the flexible protective membrane 4 is expediently integrally formed with a seal 5, in particular molded on this, which is arranged in the upper, peripheral edge region 6 of the wall 2 and mounted sump between the wall 2 of the oil pan and the bottom of a schematically illustrated crankcase 8 of an internal combustion engine lies.
  • fastening elements 7 are provided in the upper circumferential edge region 6 of the wall 2 via which the oil sump 1 is to be connected to the crankcase 8.
  • the protective membrane 4 is also separate, that is formed independently of the seal 5.
  • the protective membrane 4 is advantageously connected directly to the upper, peripheral edge region 6 of the wall 2 of the oil pan.
  • the protective membrane 4 is held by support contour elements 9 at a distance from the inner wall 3 of the wall 2 of the oil pan.
  • These support contour elements 9 are advantageously molded onto the protective membrane 4 and consist in particular of the same material as the protective membrane.
  • the support contour elements 9 keep the protective membrane 4 at a distance from the inner wall 3, whereby a cavity 10 is formed between the inner wall 3 and the protective membrane 4.
  • the protective membrane 4 is formed gas- and oil-tight, whereby the cavity 10 is isolated in a gastight manner and the oil of the oil pan 1 can not come into contact with the air cushion located in the cavity.
  • the support contour elements 9 are not formed integrally with the protective membrane 4, but form separate spacer elements, which are fastened, for example, to the inner wall 3 of the oil pan and on which the protective membrane 4 is placed.
  • the protective membrane 4 expediently covers the entire inner wall 3, as far as it can come into contact with the oil. In this way, a complete protection of the inner wall is achieved and in particular in the event of damage to the wall 2 prevents leakage of oil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP06116308A 2005-06-30 2006-06-29 Carter d'huile en particulier pour moteur à combustion Withdrawn EP1741884A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520010450 DE202005010450U1 (de) 2005-06-30 2005-06-30 Ölwanne, insbesondere für eine Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1741884A2 true EP1741884A2 (fr) 2007-01-10
EP1741884A3 EP1741884A3 (fr) 2007-02-28

Family

ID=37434138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06116308A Withdrawn EP1741884A3 (fr) 2005-06-30 2006-06-29 Carter d'huile en particulier pour moteur à combustion

Country Status (2)

Country Link
EP (1) EP1741884A3 (fr)
DE (1) DE202005010450U1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041253B1 (fr) 1999-03-30 2004-06-09 IBS Brocke GmbH & Co. KG Carter d'huile
EP1484480A1 (fr) 2003-06-03 2004-12-08 Carl Freudenberg KG Carter à liner souple

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622769A1 (de) * 1996-06-07 1997-12-11 Bayerische Motoren Werke Ag Antriebsaggregat für Kraftfahrzeuge, insbesondere PKW
DE10124071A1 (de) * 2001-05-16 2002-12-05 Joma Polytec Kunststofftechnik Ölwanne, insbesondere für eine Brennkraftmaschine oder ein Getriebe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041253B1 (fr) 1999-03-30 2004-06-09 IBS Brocke GmbH & Co. KG Carter d'huile
EP1484480A1 (fr) 2003-06-03 2004-12-08 Carl Freudenberg KG Carter à liner souple

Also Published As

Publication number Publication date
DE202005010450U1 (de) 2006-11-09
EP1741884A3 (fr) 2007-02-28

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