US20100065014A1 - Oil pan of an internal combustion engine - Google Patents

Oil pan of an internal combustion engine Download PDF

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Publication number
US20100065014A1
US20100065014A1 US12/447,924 US44792407A US2010065014A1 US 20100065014 A1 US20100065014 A1 US 20100065014A1 US 44792407 A US44792407 A US 44792407A US 2010065014 A1 US2010065014 A1 US 2010065014A1
Authority
US
United States
Prior art keywords
oil pan
oil
surge plate
pan
belonging
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.)
Abandoned
Application number
US12/447,924
Other languages
English (en)
Inventor
Alfredo Dos Santos
Jean-Luc Gateau
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Assigned to RENAULT S.A.S. reassignment RENAULT S.A.S. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOS SANTOS, ALFREDO, GATEAU, JEAN-LUC
Publication of US20100065014A1 publication Critical patent/US20100065014A1/en
Abandoned 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
    • F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
    • F01M11/064—Movement
    • 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
    • F01M2011/0033—Oilsumps with special means for guiding the return of oil into the sump
    • 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
    • F01M2011/0037—Oilsumps with different oil compartments
    • F01M2011/0041—Oilsumps with different oil compartments for accommodating movement or position of engines

Definitions

  • the present invention relates to the field of motor vehicle internal combustion engines.
  • the invention relates to an oil pan of an internal combustion engine comprising means forming a baffle for the oil flow designed to keep an oil pump strainer immersed in the oil.
  • An internal combustion engine usually comprises in its lower portion, also called the bottom of the engine, a cylinder block and an oil pan.
  • An oil pump driven by a crankshaft, draws up the oil stored in the bottom of the oil pan in order to send it, through an oil pump strainer, to moving elements of the engine such as for example the crankshaft bearings, the connecting rods or the pistons. The oil then returns by gravity to the oil pan.
  • the engine In operation, the engine generates vibrations which are propagated and can create unwanted noises in the engine.
  • reinforcing the structure of the oil pan with stiffening ribs and/or adding a generally horizontal anti-surge plate mounted in the oil pan are known.
  • An object of the invention is therefore to provide an oil pan in which the oil pump strainer is always immersed in order to prevent any surging.
  • the invention provides an oil pan of an internal combustion engine comprising means designed to keep the oil pump strainer immersed in the oil, said means comprising a first means belonging to the oil pan and a second means belonging to the anti-surge plate, said means forming a baffle for the oil flow.
  • Such an oil pan advantageously has its side walls and its bottom stiffened, and at the same time allows the creation of an oil volume stabilization zone.
  • the baffle thus created keeps the fluid near the strainer in various positions of the vehicle, the oil pump strainer being advantageously kept immersed in the oil and thus preventing any risk of surging.
  • the invention also relates to an internal combustion engine comprising an oil pan comprising such an oil pan.
  • FIG. 1 illustrates a cross section of the oil pan according to the invention.
  • a longitudinal, vertical and transverse orientation will be adopted in a non-limiting manner, according to the L, V, T axis symbol referring to the orientation of the engine.
  • FIG. 1 only the elements of the engine required for the understanding of the invention have been drawn.
  • the oil pan 1 is made in the shape of a reservoir or tray comprising a bottom which can be slightly inclined.
  • the oil pan 1 comprises a bottom 21 and side walls.
  • the side walls comprise two longitudinal side walls 220 and two transverse side walls 221 .
  • the oil pan 1 is intended to contain the oil required for the lubrication of the moving elements of the engine. This oil is pumped from the oil pan 1 through the oil pump strainer 3 , itself connected to an oil pump not illustrated in FIG. 1 . The oil used then drains under gravity from the moving or stationary elements of the engine to the oil pan 1 in which it is collected.
  • the oil pan 1 comprises an anti-surge plate 2 .
  • the anti-surge plate 2 is mounted in the oil pan 1 for example on one of the longitudinal side walls 220 , and extends parallel to the bottom 21 of the oil pan 1 generally as far as the side walls of the oil pan 1 .
  • the bottom of the oil pan 1 is parallel to the ground and the anti-surge plate 2 is parallel to the bottom of the oil pan 1 and the ground.
  • the anti-surge plate 2 thus divides the oil pan 1 into a chamber 23 lying between the upper edge of the walls 22 of the oil pan 1 and the anti-surge plate 2 on the one hand, and a reservoir 24 constituting the lower portion of the oil pan 1 in the shape of a tray.
  • the anti-surge plate 2 prevents on the one hand the oil contained in the oil pan 1 from coming in contact with moving elements such as for example the crankshaft, reduces the movement of the oil surface in the oil pan and therefore reduces surging and emulsification, and stiffens the walls of the oil pan 1 .
  • the anti-surge plate 2 comprises a cavity 25 allowing an oil pump strainer 3 to go into the reservoir 24 of the oil pan 1 .
  • the oil pan 1 comprises means 10 , 20 forming a baffle for the oil flow which are designed to keep the oil pump strainer 3 always immersed in the oil, under the anti-surge plate 2 , in the reservoir 24 .
  • the means 10 comprise a first means 10 and a second means 20 belonging to the oil pan 1 and the anti-surge plate 2 respectively.
  • These means 10 , 20 forming a baffle for the oil flow are preferably of generally cylindrical shape.
  • a first cylinder 10 is incorporated in the oil pan 1
  • a second cylinder 20 is incorporated in the anti-surge plate 2 .
  • these cylinders 10 , 20 can for example be elements attached to the oil pan 1 and the anti-surge plate 2 respectively.
  • One of the means 10 , 20 can be an incorporated element, while the other means can be an attached element.
  • the first cylinder 10 extends, in the vertical direction, from the bottom 21 of the oil pan 1 to the anti-surge plate 2 , and comprises for example openings 11 at the bottom 21 of the oil pan 1 on sections of the first cylinder 10 .
  • the openings 11 lie advantageously on the longitudinal axis of the vehicle so that the oil does not escape and remains in the baffle during cornering, acceleration or braking for example.
  • the number of openings 11 can vary, the first cylinder 10 can comprise for example an opening 11 on a section which lies parallel to one of the two longitudinal side walls 220 on the longitudinal axis of the vehicle, and an opening 11 on the section which lies parallel to the other opposite longitudinal side wall 220 .
  • the first cylinder 10 advantageously stiffens the bottom 21 of the oil pan.
  • the second cylinder 20 is incorporated in the anti-surge plate 2 . It extends the cavity 25 of the anti-surge plate 2 continuously, and extends in the vertical direction, from the anti-surge plate 2 to the bottom 21 of the oil pan 1 .
  • the first cylinder 10 and the second cylinder 20 are of generally different diameters so that the second cylinder 20 of the anti-surge plate 2 lies inside the first cylinder 10 of the oil pan 1 .
  • the first cylinder 10 of the oil pan 1 and the second cylinder 20 of the anti-surge plate 2 surround the oil pump strainer 3 .
  • the cylindrical shape of the means 10 , 20 forming a baffle for the oil flow is given as a non-limiting example. Their shape can for example be rectangular, or a different shape.
  • the means 20 of the anti-surge plate 2 only has to lie inside the means 10 of the oil pan 1 on the one hand and the oil pump strainer 3 only has to pass inside the means 20 belonging to the anti-surge plate 2 on the other hand. It will be understood that the means 20 of the anti-surge plate 2 can lie outside the means 10 of the oil pan 1 , and that the oil pump strainer 3 can then pass inside the means 10 belonging to the oil pan 1 .
  • the lower ends of the second cylinder 20 of the anti-surge plate and the lower ends of the oil pump strainer 3 have a gap between them and the bottom 21 of the oil pan 1 .
  • a minimum distance d must be maintained so as not to have any suction noise during the pumping of oil and thus prevent any contact with the oil pan 1 .
  • the second cylinder 20 of the anti-surge plate 2 and the oil pump strainer 3 extending to the bottom of the oil pan 1 preferably have generally the same height so that the volume of oil for use is as large as possible. However, this arrangement is not compulsory.
  • the oil volume moves during acceleration, braking, and left or right cornering.
  • An oil volume called the “surface intersection volume” is determined, this being the oil volume described by the intersection of the oil surfaces during acceleration, braking, and left and right cornering.
  • Such an oil pan allows the strainer to be located in this surface intersection zone, which has not always been easy or possible. By placing the strainer in this zone, surging can then be prevented or delayed.
  • Such an oil pan allows the baffle for the oil flow to keep the oil pump strainer 3 always immersed in order to prevent any surging.
  • the fluid is advantageously kept near the oil pump strainer 3 in various positions of the vehicle.
  • Such a baffle for the oil flow advantageously reduces the unwanted noises coming from the bottom 21 of the oil pan, and at the same time allows the oil to arrive in the reservoir 24 of the oil pan 1 at a satisfactory rate without escaping during cornering for example.
  • Such an oil pan stiffens the bottom of the engine not only by means of the anti-surge plate 2 which reinforces its structure, but also by means of the means 10 incorporated in it.
  • Another advantage of the invention is also to stiffen the bottom of the engine to reduce the noise reverberating in the oil pan 1 and at the same time create an oil volume stabilization zone to reduce the effects of roll on surging.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
US12/447,924 2006-11-10 2007-11-09 Oil pan of an internal combustion engine Abandoned US20100065014A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0654812A FR2908453B1 (fr) 2006-11-10 2006-11-10 Carter d'huile d'un moteur a combustion.
FR0654812 2006-11-10
PCT/EP2007/062154 WO2008055979A1 (fr) 2006-11-10 2007-11-09 Carter d'huile d'un moteur a combustion

Publications (1)

Publication Number Publication Date
US20100065014A1 true US20100065014A1 (en) 2010-03-18

Family

ID=38291266

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/447,924 Abandoned US20100065014A1 (en) 2006-11-10 2007-11-09 Oil pan of an internal combustion engine

Country Status (5)

Country Link
US (1) US20100065014A1 (fr)
EP (1) EP2087211A1 (fr)
JP (1) JP2010509536A (fr)
FR (1) FR2908453B1 (fr)
WO (1) WO2008055979A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109252912A (zh) * 2018-09-26 2019-01-22 潍柴动力股份有限公司 一种油底壳及发动机
US20190128155A1 (en) * 2017-10-31 2019-05-02 GM Global Technology Operations LLC Oil pan assembly
US20210372303A9 (en) * 2018-05-04 2021-12-02 Elringklinger Ag Sump device having a pipe unit
US11333051B2 (en) * 2018-11-14 2022-05-17 Toyota Jidosha Kabushiki Kaisha Oil storing structure for internal combustion engine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2538318A (en) * 2015-05-15 2016-11-16 Barrus E P Ltd A sump
JP6543158B2 (ja) * 2015-10-07 2019-07-10 株式会社マキタ エンジンの潤滑装置
JPWO2022172315A1 (fr) * 2021-02-09 2022-08-18

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1230470A (en) * 1916-11-09 1917-06-19 White Motor Co Internal-combustion engine.
US1305355A (en) * 1919-06-03 Oiling mechanism fob
US2440815A (en) * 1944-01-14 1948-05-04 Ford Motor Co Crankcase construction
US2938601A (en) * 1958-03-20 1960-05-31 Gen Motors Corp Engine oil pan
US4930469A (en) * 1988-09-12 1990-06-05 Dr. Ing. H.C.F. Porsche Ag Oil pan for an internal combustion engine
US20030029412A1 (en) * 2001-07-25 2003-02-13 Toyota Jidosha Kabushiki Kaisha Oil pan structure and oil pan separator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192455B (de) * 1963-10-12 1965-05-06 Daimler Benz Ag Schmiervorrichtung fuer Brennkraftmaschinen mit in Kammern unterteiltem OElsumpf
JPS5776217A (en) * 1980-10-29 1982-05-13 Nissan Motor Co Ltd Lubricating system for internal combustion engine
JPS6148909U (fr) * 1984-08-28 1986-04-02
JPS61105708U (fr) * 1984-12-18 1986-07-04
JPS63164513U (fr) * 1987-04-15 1988-10-26
GB2305467A (en) * 1995-09-25 1997-04-09 Ford Motor Co Engine oil sump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1305355A (en) * 1919-06-03 Oiling mechanism fob
US1230470A (en) * 1916-11-09 1917-06-19 White Motor Co Internal-combustion engine.
US2440815A (en) * 1944-01-14 1948-05-04 Ford Motor Co Crankcase construction
US2938601A (en) * 1958-03-20 1960-05-31 Gen Motors Corp Engine oil pan
US4930469A (en) * 1988-09-12 1990-06-05 Dr. Ing. H.C.F. Porsche Ag Oil pan for an internal combustion engine
US20030029412A1 (en) * 2001-07-25 2003-02-13 Toyota Jidosha Kabushiki Kaisha Oil pan structure and oil pan separator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190128155A1 (en) * 2017-10-31 2019-05-02 GM Global Technology Operations LLC Oil pan assembly
US10570788B2 (en) * 2017-10-31 2020-02-25 GM Global Technology Operations LLC Oil pan assembly
US20210372303A9 (en) * 2018-05-04 2021-12-02 Elringklinger Ag Sump device having a pipe unit
US11891929B2 (en) * 2018-05-04 2024-02-06 Elringklinger Ag Sump device having a pipe unit
CN109252912A (zh) * 2018-09-26 2019-01-22 潍柴动力股份有限公司 一种油底壳及发动机
US11333051B2 (en) * 2018-11-14 2022-05-17 Toyota Jidosha Kabushiki Kaisha Oil storing structure for internal combustion engine

Also Published As

Publication number Publication date
FR2908453B1 (fr) 2008-12-19
WO2008055979A1 (fr) 2008-05-15
FR2908453A1 (fr) 2008-05-16
EP2087211A1 (fr) 2009-08-12
JP2010509536A (ja) 2010-03-25

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AS Assignment

Owner name: RENAULT S.A.S.,FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DOS SANTOS, ALFREDO;GATEAU, JEAN-LUC;SIGNING DATES FROM 20090527 TO 20090528;REEL/FRAME:022866/0673

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION