EP1361345A1 - Carter d'huile - Google Patents

Carter d'huile Download PDF

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Publication number
EP1361345A1
EP1361345A1 EP03252862A EP03252862A EP1361345A1 EP 1361345 A1 EP1361345 A1 EP 1361345A1 EP 03252862 A EP03252862 A EP 03252862A EP 03252862 A EP03252862 A EP 03252862A EP 1361345 A1 EP1361345 A1 EP 1361345A1
Authority
EP
European Patent Office
Prior art keywords
oil
oil pan
baffle plate
crankshaft
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.)
Granted
Application number
EP03252862A
Other languages
German (de)
English (en)
Other versions
EP1361345B1 (fr
Inventor
Katou c/o Aichi Kikai KKK Noriyoshi
Okawa c/o Nissan Motor Co. Ltd Hisao
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
Aichi Machine Industry Co Ltd
Nissan Motor Co Ltd
Original Assignee
Renault SAS
Aichi Machine Industry Co Ltd
Nissan Motor Co Ltd
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, Aichi Machine Industry Co Ltd, Nissan Motor Co Ltd filed Critical Renault SAS
Publication of EP1361345A1 publication Critical patent/EP1361345A1/fr
Application granted granted Critical
Publication of EP1361345B1 publication Critical patent/EP1361345B1/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
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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
    • F01M2011/0029—Oilsumps with oil filters
    • 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
    • F01M2011/0079—Oilsumps with the oil pump integrated or fixed to sump

Definitions

  • the present invention relates to the structure of an oil pan for an internal combustion engine.
  • an oil pan 3 is mounted directly or through an adapter plate 2 on a cylinder block 1 of an internal combustion engine.
  • the oil pan 3 comprises a boxlike upper part 3d made of aluminum alloy and a lidlike lower part 3g made of steel plate or aluminum alloy.
  • This oil pan 3 has a structure as shown in a front view of FIG.16, plan view of FIG.17, bottom view of FIG.18, and partly sectional side view of FIG.19.
  • a mounting surface 3e for mounting itself on the cylinder block 1 and formed on the bottom of the upper part 3d is a lower mounting surface 3f on which the lower part 3g is mounted.
  • a mounting surface 3e for mounting itself on the cylinder block 1
  • a lower mounting surface 3f on which the lower part 3g is mounted.
  • Formed at the left end of the upper part 3d is an open end 3a that is open and vertical to the central axis 4a of the crankshaft 4 and formed oppositely at the right end is a closed end 3b that is closed.
  • a baffle plate 3c Integrally formed on the boxlike upper part 3d is a baffle plate 3c to restrict thrashing of lubrication oil surface that occurs during the operation of the internal combustion engine.
  • An oil pump 5 for supplying lubrication oil to the engine is a separate component, which is secured to the under surface of the cylinder block 1 or adapter plate 2 with a plurality of bolts 6.
  • the oil pump shaft 5a is provided with a sprocket 5b to which the rotating force is transmitted through a chain, belt, gear, etc from the crankshaft 4 to operate the oil pump 5.
  • an oil strainer 7 for sucking lubrication oil inside the oil pan 3 is mounted on the under surface of the oil pump 5 with bolts 6 or formed integrally with the oil pump 5.
  • such a structure may be thought that the oil pump 5 is disposed, as shown in FIG.20, coaxially on the central axis 4a of the crankshaft 4 and integrated with a cover 9 covering the open end on the side where the oil pump 5 is disposed so as to decrease the number of parts.
  • the oil pump 5 must be inserted into the crankshaft 4, so that it is required to extend the axial length of the crankshaft 4.
  • such a structure has a weak point that the axial length of the crankshaft becomes longer, so that it is apt to be restricted to install the engine on a vehicle.
  • the present invention is worked out in view of the above-described problems in the prior art. It is an object of the present invention to provide an oil pan for an internal combustion engine that can decrease the number of parts and weight, enhance the rigidity and minimize the axial length of the crankshaft.
  • the first subject matter of the present invention is an oil pan for an internal combustion engine comprising an upper part mounted directly or through an adapter plate on the bottom of an cylinder block, a lower part covering the bottom of the upper part, the upper part provided with an open end at one end thereof vertically crossed to the central axis of the crankshaft, and the upper part provided integrally with a baffle plate made of aluminum alloy to restrict thrashing of lubrication oil, wherein a vertical wall is provided integrally near the open end of the upper part vertically crossed to the central axis of the crankshaft, and the vertical wall is provided with an oil pump to supply lubrication oil to the internal combustion engine.
  • a lower oil passage is formed integrally on the vertical wall or the wall of the baffle plate to introduce the lubrication oil in the oil pan through an oil strainer into the oil pump.
  • an upper oil passage is formed parallel to the central axis of the crankshaft and integrally on the baffle plate or the side wall of the upper part or the connecting part between the baffle plate and the side wall to introduce the lubrication oil in the oil pan through the discharge side into an oil filter.
  • a boss portion for mounting an oil filter is formed integrally on the sidewall of the upper part on which the upper oil passage is formed as a unit.
  • an advantage of the oil pan according to the invention is that it is possible to decrease the number of parts, weight and cost and to minimize the axial length of the crankshaft and further to enhance the degree of freedom for installation of the internal combustion engine on a vehicle and also the rigidity of the oil pan owing to the vertical wall.
  • Another advantage of this oil pan according to the second subject matter is that it is possible to minimize the addition of the weight and to enhance the rigidity of the oil pan owing to the lower oil passage.
  • a further advantage of this oil pan according to the third subject matter is that it is possible to minimize the addition of the weight and to enhance the rigidity of the oil pan.
  • a still further advantage of this oil pan according to the fourth subject matter is that it is possible to mount an oil filter on the boss portion from the outside and to make it easy to exchange the oil filter.
  • FIG.1 is a front view of an oil pan 3 that is mounted directly or through an adapter plate 2 on a cylinder block 1 as shown in FIG.14 or FIG.15 described above
  • FIG.2 is a plan view thereof
  • FIG.3 is a bottom view thereof
  • FIG.4 is a partly sectional side view thereof.
  • the oil pan 3 comprises an upper part 3d and a lower part 3g.
  • the left side is open and forms an open end 3a and the right side closed and a closed end 3d, as best shown in FIG.2.
  • the upper part 3d is provided integrally with a baffle plate 3c made of aluminum alloy between the side walls 3p parallel to the central axis 4a of the crankshaft, as shown in the A-A line sectional view of FIG.5.
  • the baffle plate 3c is partly provided with a wall surface 3m formed downward in a hollow fashion.
  • the top periphery of the upper part 3d forms a mounting surface 3e to be mounted on the cylinder block 1 or adapter plate 2 and the under periphery of the same forms a lower mounting surface 3f to mount the lower part 3g thereon.
  • Integrally formed near the open end 3a of the boxlike upper part 3d is a vertical wall 3h crossed at right angles to the central axis 4a of the crankshaft. This vertical wall 3h is fitted with an oil pump 5.
  • the vertical wall 3h is formed in a hollow fashion and the oil pump 5 is fitted thereto with bolts from the open end 3a.
  • a gear 5c of the oil pump 5 is disposed inside the vertical wall 3h.
  • the inside of the vertical wall 3h forms an oil chamber, from which a shaft 5a of the oil pump 5 is projected toward the open end 3a.
  • a sprocket 5b is engaged with a chain, belt, gear, or the like so as to receive the rotating force from the crankshaft 4.
  • the bottom of the baffle plate 3c is provided with an oil strainer 7 with a suction inlet 7a projecting downward into the lower part 3g.
  • This oil strainer 7 is disposed in a position to immerse itself in the lubrication oil collected in the oil pan 3.
  • a lower oil passage 3j integrally formed on the bottom of the wall 3m forming the baffle plate 3c is a lower oil passage 3j to be nearly parallel to the central axis 4a of the crankshaft.
  • the lower oil passage 3j makes the suction inlet 7a of the oil strainer 7 communicate through an inlet 7b with the oil chamber inside the vertical wall h involving the gear 5c of the oil pump 5.
  • this lower oil passage 3j is capable of introducing the lubrication oil sucked from the oil strainer 7 through the inlet 7b to the gear 5c of the oil pump 5.
  • integrally formed on the baffle plate 3c parallel to the central axis 4a of the crankshaft, or on one of the side walls 3p parallel to the central axis 4a, or on the area joining the baffle plate 3c to the side wall 3p is an upper oil passage 3n to introduce the lubrication oil from the sectional area-changing portion 7c at the discharge side of the oil pump 5 to the oil filter 8.
  • the lubrication oil discharged by rotation of the gear 5c of the oil pump 5 runs along this upper oil passage 3n and is supplied through the oil filter 8 into the internal combustion engine.
  • the lower and the upper oil passage 3j, 3n are formed integrally with the upper part 3d of the oil pan 3 by pressure die-casting, which is relatively inexpensive as the process of aluminum alloy casting.
  • the foregoing vertical wall 3h may be formed integrally with the upper part 3d.
  • the vertical wall 3h, lower oil passage 3j and upper oil passage 3n are capable of functioning as rigidity members in addition to the oil passages, so that the whole of the oil pan 3 is enhanced in its rigidity.
  • FIG.10 and FIG.11 Integrally formed on the sidewall 3p of the upper part 3d is a boss portion 3q communicating with the foregoing upper oil passage 3n so that the oil filter 8 may be mounted on this boss portion 3q from the outside.
  • the boss portion 3q is integrally formed, it becomes easy to exchange the oil filter 8, so that the dust in the lubrication oil is favorably caught through this oil filter 8 and the lubrication oil without dust may be satisfactorily supplied into the internal combustion engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP20030252862 2002-05-09 2003-05-07 Carter d'huile Expired - Lifetime EP1361345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002134757 2002-05-09
JP2002134757A JP4079685B2 (ja) 2002-05-09 2002-05-09 内燃機関用オイルパン構造

Publications (2)

Publication Number Publication Date
EP1361345A1 true EP1361345A1 (fr) 2003-11-12
EP1361345B1 EP1361345B1 (fr) 2007-02-21

Family

ID=29244215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030252862 Expired - Lifetime EP1361345B1 (fr) 2002-05-09 2003-05-07 Carter d'huile

Country Status (3)

Country Link
EP (1) EP1361345B1 (fr)
JP (1) JP4079685B2 (fr)
DE (1) DE60311909T2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1526259A3 (fr) * 2003-10-21 2008-04-16 Aichi Machine Industry Co., Ltd. Carter d'huile
EP1619363A3 (fr) * 2004-06-18 2010-01-06 Aichi Machine Industry Co., Ltd. Carter d'huile pour moteur à combustion
FR3027997A1 (fr) * 2014-11-05 2016-05-06 Peugeot Citroen Automobiles Sa Carter d’huile avec boitier de liaison contenant de l’huile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4870000B2 (ja) * 2007-03-22 2012-02-08 Ｕｄトラックス株式会社 変速機の潤滑装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595432A (en) * 1920-03-20 1926-08-10 Packard Motor Car Co Hydrocarbon motor
GB2280934A (en) * 1990-10-31 1995-02-15 Suzuki Motor Co I.c. engine oil pump mounting
EP0744533A1 (fr) * 1995-05-22 1996-11-27 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Moteur à combustion interne
EP1316713A2 (fr) * 2001-12-01 2003-06-04 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Bac à huile pour un moteur à combustion interne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595432A (en) * 1920-03-20 1926-08-10 Packard Motor Car Co Hydrocarbon motor
GB2280934A (en) * 1990-10-31 1995-02-15 Suzuki Motor Co I.c. engine oil pump mounting
EP0744533A1 (fr) * 1995-05-22 1996-11-27 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Moteur à combustion interne
EP1316713A2 (fr) * 2001-12-01 2003-06-04 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Bac à huile pour un moteur à combustion interne

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1526259A3 (fr) * 2003-10-21 2008-04-16 Aichi Machine Industry Co., Ltd. Carter d'huile
EP1619363A3 (fr) * 2004-06-18 2010-01-06 Aichi Machine Industry Co., Ltd. Carter d'huile pour moteur à combustion
FR3027997A1 (fr) * 2014-11-05 2016-05-06 Peugeot Citroen Automobiles Sa Carter d’huile avec boitier de liaison contenant de l’huile

Also Published As

Publication number Publication date
JP2003328719A (ja) 2003-11-19
JP4079685B2 (ja) 2008-04-23
EP1361345B1 (fr) 2007-02-21
DE60311909T2 (de) 2007-11-08
DE60311909D1 (de) 2007-04-05

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