EP1992796A1 - Oil tray - Google Patents

Oil tray Download PDF

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Publication number
EP1992796A1
EP1992796A1 EP08008653A EP08008653A EP1992796A1 EP 1992796 A1 EP1992796 A1 EP 1992796A1 EP 08008653 A EP08008653 A EP 08008653A EP 08008653 A EP08008653 A EP 08008653A EP 1992796 A1 EP1992796 A1 EP 1992796A1
Authority
EP
European Patent Office
Prior art keywords
suction channel
oil
nose
bottom part
oil sump
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
EP08008653A
Other languages
German (de)
French (fr)
Other versions
EP1992796B1 (en
Inventor
Wolf-Dietrich Bicker
Peter Eichert
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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
Family has litigation
Priority to DE200710023406 priority Critical patent/DE102007023406A1/en
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Publication of EP1992796A1 publication Critical patent/EP1992796A1/en
Application granted granted Critical
Publication of EP1992796B1 publication Critical patent/EP1992796B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39736863&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1992796(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • F01M2011/0066Oilsumps with passages in the wall, e.g. for axles or fluid passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • F01M2011/007Oil pickup tube to oil pump, e.g. strainer

Abstract

An inventive oil pan (10) for an internal combustion engine has a bottom part (12) for forming an oil sump and a suction channel (14) for the suction of oil. The suction channel (14) is arranged such that it opens into the oil sump via an orifice (16). In the region of the mouth (16), the suction channel (14) has a nose (22) for at least partially covering the suction channel cross section in the horizontal flow direction. Thereby, it is possible to provide an oil pan (10) for an internal combustion engine, which is characterized by a simplified structure and low production costs.

Description

  • The invention relates to an oil pan for an internal combustion engine.
  • From the DE 10 2004 024 517 A1 an oil pan for an internal combustion engine is known, which has a bottom part for the oil sump and a suction pipe, which opens into a suction region of the bottom part. The suction region has a cylindrical wall section, in which one or more suction windows are arranged and which is closed at the top with a lid. An oil pump provides at the intake, in which the suction pipe opens, for a negative pressure, whereby the oil located in the bottom part first flows through the suction window in the suction and then from the suction into the suction pipe. A disadvantage of this embodiment is the complex structural design of the intake, which leads to a high manufacturing costs and on the other hand, the installation and maintenance difficult.
  • It is therefore an object of the present invention to provide an oil pan for an internal combustion engine, which is characterized by a simplified structure and low production costs.
  • The object is achieved by the features of claim 1. Advantageous embodiments of the invention are specified in the dependent claims.
  • The oil pan according to the invention for an internal combustion engine has a bottom part for forming an oil sump and a suction channel for sucking oil. The suction channel is arranged such that it opens into the oil sump via an orifice. In the region of the mouth, the suction channel has a nose for at least partially covering the suction channel cross section in the horizontal flow direction.
  • The arrangement of a preferably cap-shaped nose on the suction channel in the region of the mouth is by a simple structural design of the suction channel, without additional elements must be arranged in the oil pan, a uniform flow of the oil sump into the suction channel for the oil to be sucked achieved, which is prevented by the nose that air can enter the suction channel. Through the nose it is achieved that the oil can preferably flow into the suction channel only at the lowest oil level in the oil sump. The nose extends over at least a portion of the Saugkanalquerschnittes in the flow direction, so that between the bottom part and the nose preferably a gap is formed, through which the oil can flow from the oil sump into the suction channel. Characterized in that the suction channel is closed in the mouth region through the nose up and only a narrow gap is formed in the mouth region of the suction channel, a disadvantageous vortex effect of the incoming oil is prevented. Vertically to the flow direction, the distance between the lower region of the nose and the portion of the suction channel opposite the lower region of the nose preferably corresponds to the cross-sectional area of the suction channel. With the help of an oil pump is generates a negative pressure at the mouth region of the suction pipe, whereby the oil located in the oil sump of the bottom part can flow through a gap formed by the bottom part and the nose into the mouth of the suction channel. The sucked oil flows through the suction channel and in particular reaches the individual engine lubrication points, such as the spherical shaft bearing, the connecting rod bearing, the plunger or the camshaft bearing.
  • The inventive arrangement of a nose for at least partially covering the Saugkanalquerschnittes in the horizontal flow direction in the mouth in the suction channel is in particular causes no air due to the negative pressure in the mouth area is sucked during the promotion of the oil, which is disadvantageous for the engine lubrication would affect. Especially when, for example, strong cornering of the vehicle, which can lead to a fluctuation of the oil level in the oil pan is prevented by the nose that in the mouth region of the suction channel, the oil level can drop so much that air could get into the suction channel.
  • Furthermore, the nose achieves a simple structural design with only a low manufacturing cost of the oil sump. In addition, the assembly cost is reduced. In contrast to known oil pans fewer parts are required in the oil pan according to the invention, since, for example, no additional device for suction in the region of the oil sump is required. In particular, no additional cover is required by the arrangement of a nose at the mouth of the suction channel. The fact that now fewer parts are needed, the other parts in the oil pan, in particular in the area of the oil sump, parts have greater tolerances.
  • The preparation can be done easily and quickly, for example, by a side opening is milled into a sealed with a cross-sectional area of the tube. For ease of manufacture, the nose is preferably conical.
  • Preferably, the nose extends geodetically from top to bottom. This creates a gap in the region of the mouth between the bottom part and the nose, which the oil has to pass before the oil can flow into the suction channel, preventing air from getting into the suction channel together with the oil.
  • According to a further embodiment, the nose is integrally connected to the suction channel. Due to the one-piece connection of the suction tube with the nose, a simple production is possible and possible leakage between the transition region of the suction tube to the nose are prevented.
  • Furthermore, it is preferably provided that the suction channel is at least partially connected in one piece with the bottom part. The suction channel is preferably connected in one piece to the bottom part in the area opposite the nose. By the one-piece embodiment, a compact design is achieved, which also represents a weight and cost savings. Faulty mounting with respect to the suction channel, which may cause any leaks are excluded by the inventive arrangement.
  • According to a further embodiment, the bottom part at least partially forms the mouth. In this case, the area of the suction channel, on which the nose is arranged, projects beyond a part of the bottom part, so that the mouth area on the nose opposite side of the suction channel is at least partially formed by the bottom part.
  • Furthermore, the bottom part is flat in the region of the mouth. Due to the planar design of the bottom part, the distance of the nose to the bottom part is preferably uniform, so that the oil flow can be sucked evenly into the suction channel, whereby the oil flow in turn can flow with a constant pressure over the cross-sectional area of the suction channel into the suction channel. Due to the uniform inflow, an adverse vortex flow of the oil flow is avoided.
  • The invention further relates to an internal combustion engine having a crankshaft housing and an oil pan connected to the crankshaft housing, wherein the oil pan can be trained and developed as described above.
  • The invention will be explained in more detail with reference to the accompanying drawings with reference to a preferred embodiment. Show it:
  • Fig. 1
    a schematic perspective view of an oil pan according to the invention and
    Fig. 2
    a schematic sectional view of an oil pan according to the invention.
  • In the Fig. 1 shown oil pan 10 for an internal combustion engine has a bottom part 12 for forming an oil sump and a suction channel 14 for the suction of oil, wherein the suction channel 14 opens via an orifice 16 into the oil sump. In the oil sump of the bottom part 12 of the oil pan 10 is the oil, which is provided for the engine lubrication. The oil sump is here preferably formed perpendicular to the bottom of the bottom part 12.
  • The suction channel 14 is preferably cone-shaped, wherein the diameter of the suction channel 14 at the mouth 16 has a smaller diameter than at the mouth 16 opposite side, on which a filter unit 18 is arranged. The filter unit 18 can for example consist of a coarse filter which sieves predominantly larger particles from the oil flow to be conveyed. A further fine filtering can take place in a second filter (not shown here), the filter elements of which may preferably consist of paper or fibrous material fillings. In order to seal the suction channel 14 at the opposite side of the mouth 16, a sealing element 20, for example a plug, is provided. The suction channel 14 preferably has the shape of a straight elongated tube, wherein advantageously in the suction channel 14 no flow-deflecting elements are provided.
  • As in Fig. 2 is shown, the suction channel 14 in the region of the mouth 16 a nose 22 for at least partially covering the Saugkanalquerschnittes in the horizontal flow direction. The nose 22 extends over at least part of the cross-sectional area of the suction channel 14, the nose 22 preferably being arranged on the side of the suction channel 14 opposite the bottom part 12. Between the bottom part 12 and the nose 22, a gap is formed, through which the oil from the oil sump can flow in the flow direction in the suction channel 14. In the region of the mouth 16 of the suction channel 14 at the point at which the nose 22 is arranged, preferably designed to be longer than the nose 22 opposite region of the suction channel 14, which is adjacent to the bottom part 12, so that the part of the suction channel 14 with the nose 22 may overlap a portion of the bottom portion 12. The bottom part 12 may in this case at least partially the mouth 16 form and is preferably formed flat in the mouth 16. The nose 22 extends geodetically from top to bottom in the direction of the bottom part 12, wherein the nose 22 is formed substantially perpendicular to the bottom part 12. Between the bottom part 12 and the nose 22, a gap is formed, through which a defined amount of oil flow from the oil sump can flow in the direction of the suction channel 14, being prevented by means of the nose 22 in a simple manner that air together with the oil in can flow the suction channel 14.
  • LIST OF REFERENCE NUMBERS
  • 10
    oil pan
    12
    the bottom part
    14
    suction
    16
    muzzle
    18
    filter unit
    20
    sealing
    22
    nose

Claims (8)

  1. Oil sump for an internal combustion engine, comprising a bottom part (12) for forming an oil sump and
    a suction channel (14) for sucking oil which flows into the oil sump via a mouth (16),
    characterized in that
    the suction channel (14) in the region of the mouth (16) has a nose (22) for at least partially covering the Saugkanalquerschnittes in the horizontal flow direction.
  2. Oil sump according to claim 1, characterized in that the nose (22) extends geodetically from top to bottom.
  3. Oil sump according to one of claims 1 or 2, characterized in that the nose (22) is formed substantially perpendicular to the bottom part (12).
  4. Oil sump according to one of claims 1 to 3, characterized in that the nose (22) is integrally connected to the suction channel (14).
  5. Oil sump according to one of claims 1 to 4, characterized in that the suction channel (14) is at least partially connected in one piece with the bottom part (12).
  6. Oil sump according to one of claims 1 to 5, characterized in that the bottom part (12) at least partially forms the mouth (16).
  7. Oil sump according to claim 6, characterized in that the bottom part (12) in the region of the mouth (16) is flat.
  8. An internal combustion engine comprising a crankcase and an oil pan (10) connected to the crankshaft housing, the oil pan (10) being according to one of claims 1 to 7.
EP20080008653 2007-05-18 2008-05-08 Oil tray Revoked EP1992796B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200710023406 DE102007023406A1 (en) 2007-05-18 2007-05-18 oil pan

Publications (2)

Publication Number Publication Date
EP1992796A1 true EP1992796A1 (en) 2008-11-19
EP1992796B1 EP1992796B1 (en) 2013-07-03

Family

ID=39736863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080008653 Revoked EP1992796B1 (en) 2007-05-18 2008-05-08 Oil tray

Country Status (5)

Country Link
US (1) US8011340B2 (en)
EP (1) EP1992796B1 (en)
KR (1) KR20080101673A (en)
CN (1) CN101307703B (en)
DE (1) DE102007023406A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8151757B2 (en) * 2009-05-14 2012-04-10 Deere & Company Oil pan/axle support
JP4888746B2 (en) * 2009-09-30 2012-02-29 マツダ株式会社 Oil pan structure
DE102011104017A1 (en) * 2011-06-11 2012-12-13 Audi Ag Container for a service medium of a motor vehicle
JP6040555B2 (en) * 2012-04-04 2016-12-07 日産自動車株式会社 Internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509861A (en) 1967-06-15 1970-05-05 Daimler Benz Ag Internal combustion engine
US6041752A (en) * 1998-11-04 2000-03-28 Technology Holdings, Inc. Moldable integrated oil pan and suction tube for an internal combustion engine
US6142257A (en) 1998-07-13 2000-11-07 Briggs And Stratton Corporation Oil pickup tube for internal combustion engine
US20040084250A1 (en) 2002-11-05 2004-05-06 Suzuki Motor Corporation Oil pan structure for four-cycle engine
DE10305184A1 (en) * 2003-02-08 2005-03-31 Zf Friedrichshafen Ag Inlet for suction pipe of oil pump is fitted with filter comprising section of wire hose which slopes towards its closed outward end

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183750B (en) * 1961-07-01 1964-12-17 Ceskoslovenske Zd Y Naftovych Arrangement of a OElfilters
DE2457508C3 (en) * 1974-12-05 1979-01-11 Daimler-Benz Ag, 7000 Stuttgart
DE2732474C3 (en) * 1977-07-19 1980-02-14 Bayerische Motoren Werke Ag, 8000 Muenchen
US6257193B1 (en) * 1999-09-16 2001-07-10 International Truck And Engine Corporation Engine with a direct passage from the oil reservoir to the oil pump
EP1416129B1 (en) * 2002-10-12 2005-09-14 IBS Filtran Kunststoff-/Metallerzeugnisse GmbH Method of producing a plastic oil pan with integrated oil filter
DE102004024517A1 (en) * 2004-05-18 2005-12-15 Adam Opel Ag An oil sump assembly
JP4414329B2 (en) * 2004-12-27 2010-02-10 本田技研工業株式会社 Oil strainer support structure for engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509861A (en) 1967-06-15 1970-05-05 Daimler Benz Ag Internal combustion engine
US6142257A (en) 1998-07-13 2000-11-07 Briggs And Stratton Corporation Oil pickup tube for internal combustion engine
US6041752A (en) * 1998-11-04 2000-03-28 Technology Holdings, Inc. Moldable integrated oil pan and suction tube for an internal combustion engine
US20040084250A1 (en) 2002-11-05 2004-05-06 Suzuki Motor Corporation Oil pan structure for four-cycle engine
DE10305184A1 (en) * 2003-02-08 2005-03-31 Zf Friedrichshafen Ag Inlet for suction pipe of oil pump is fitted with filter comprising section of wire hose which slopes towards its closed outward end

Also Published As

Publication number Publication date
US20080283020A1 (en) 2008-11-20
CN101307703A (en) 2008-11-19
CN101307703B (en) 2013-05-29
EP1992796B1 (en) 2013-07-03
US8011340B2 (en) 2011-09-06
DE102007023406A1 (en) 2008-11-20
KR20080101673A (en) 2008-11-21

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