EP3375992B1 - Ensemble bac à huile - Google Patents

Ensemble bac à huile Download PDF

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Publication number
EP3375992B1
EP3375992B1 EP16864363.3A EP16864363A EP3375992B1 EP 3375992 B1 EP3375992 B1 EP 3375992B1 EP 16864363 A EP16864363 A EP 16864363A EP 3375992 B1 EP3375992 B1 EP 3375992B1
Authority
EP
European Patent Office
Prior art keywords
oil pan
oil
bolt
recessed portion
engine
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.)
Active
Application number
EP16864363.3A
Other languages
German (de)
English (en)
Other versions
EP3375992A4 (fr
EP3375992A1 (fr
Inventor
Takaya Maeda
Naoki MIZUKAMI
Tsutomu Matsunaga
Isao Kitsukawa
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.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors 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 Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Publication of EP3375992A1 publication Critical patent/EP3375992A1/fr
Publication of EP3375992A4 publication Critical patent/EP3375992A4/fr
Application granted granted Critical
Publication of EP3375992B1 publication Critical patent/EP3375992B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs

Definitions

  • This disclosure relates to an oil pan device and particularly relates to oil pan device used in an engine of a vehicle.
  • an oil pan for storing engine oil is attached to a lower end of a crankcase.
  • a bolt hole for discharging engine oil is provided in the bottom portion of the oil pan, and a drain bolt for closing the bolt hole is detachably attached to this bolt hole.
  • WO 2014/079591 discloses a combined oil pan and filter, in particular for an engine oil circuit of an internal combustion engine, in particular of a motor vehicle.
  • the oil pan has an oil drain opening which is closeable with a closure element.
  • Patent Literature 1 Japanese Unexamined Patent Application Publication No. H5-306653
  • the height position of a bottom portion of an oil pan In a vehicle, from the viewpoint of improving steering stability and the like, there is a demand for lowering the mounting position of an engine.
  • the height position In a case where the height position of a bottom portion of an oil pan is lowered, for example, the height position may be lower than a predetermined lower limit height such as minimum ground clearance of a vehicle, and thus it has been considered to employ a thin (shallow plate) oil pan.
  • the head portion of a drain bolt protrudes downwardly from the lowermost end position of the oil pan bottom portion, which is disadvantageous in securing a predetermined lower limit height.
  • a method of recessing the bottom portion of the oil pan upward to form a recessed portion and uprightly attaching the drain bolt in the recessed portion is considered.
  • This disclosure is made in consideration of the above circumstances and provides an oil pan device capable of reducing the amount of oil remaining in an oil pan when engine oil is discharged.
  • An oil pan device according to an aspect of the present invention is set out in claim 1.
  • the recessed portion may be formed in a reversed V shape in a cross-sectional view.
  • the oil pan device of this disclosure it is possible to reduce the amount of oil remaining in the oil pan when engine oil is discharged.
  • the oil pan device is in a state in which the oil pan device is mounted on an engine of a vehicle (not illustrated), and the up-and-down direction is determined based on the up-and-down direction of the vehicle.
  • FIG. 1 is a schematic view illustrating a bottom surface side of an oil pan device 1 according to an embodiment of this disclosure.
  • FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1 .
  • a reference numeral R indicates a road surface.
  • a dashed line L indicates the lowermost end position of a head portion 52 of a drain bolt 50
  • a two-dot chain line X indicates the minimum ground clearance of a vehicle.
  • the engine is arranged inclined to a cylinder axis so as to be slightly inclined in the vertical direction. Therefore, in FIGS. 2 and 3 , in appearance, the oil surface of engine oil O seems to be inclined to a road surface R in the left-and-right direction.
  • the front-and-rear and left-and-right directions of the oil pan device 1 are not related with the front-and-rear and left-and-right directions of a vehicle and are merely determined for convenience of explanation.
  • the front direction of an oil pan 10 coincides with the front direction of a vehicle.
  • the oil pan device 1 includes the oil pan 10 that is attached to a lower end 5a of a crankcase 5 and a drain bolt 50.
  • the oil pan 10 is formed of a metal material or a heat resistant resin material and includes a side wall 20 forming a side surface and a bottom plate 30 forming a bottom surface. Inside the oil pan 10, engine oil O for lubricating a lubrication target member such as a crank shaft (not illustrated) is stored. In the embodiment, the oil pan 10 is formed of a thin (shallow plate) oil pan in which the length of the side wall 20 in the up-and-down direction is short.
  • a flange portion 21 which is attached to the lower end 5a of the crankcase 5 via a gasket (not illustrated) is provided.
  • the flange portion 21 is detachably attached to the lower end 5a of the crankcase 5 by a bolt 22 or the like.
  • the bottom plate 30 includes a flat plate portion 31 formed in a flat plate shape, and the recessed portion 33 by recessing the bottom surface portion 32 (lower surface) upward. This recessed portion 33 is formed at a portion ahead of the left half of the bottom plate 30.
  • the recessed portion 33 has a top portion 33T at a position higher than a position of an attachment surface F (the upper surface of the flange portion 21) of the oil pan 10 with the crankcase 5 (lower end 5a). As illustrated in FIG. 3 , the recessed portion 33 is formed in a reversed V shape in a cross-sectional view.
  • the recessed portion 33 is formed by partially recessing the bottom surface portion 32 in a cylindrical shape.
  • the portion 33 having a recessed partially cylindrical shape has a first inclined portion 34 formed in a cylindrical circumferential surface shape and a second inclined portion 35 formed in a cylindrical end surface shape.
  • a bolt hole 36 is vertically provided in the second inclined portion 35.
  • the bolt hole 36 has a through-hole 36a passing through the second inclined portion 35, and a nut portion 36b arranged in the oil pan 10 and coaxially provided with the through-hole 36a.
  • a flange 36c is formed at the end portion of the nut portion 36b on the second inclined portion 35 side and is fixed to the second included portion 35 by wielding or the like.
  • a lateral hole 36d is formed at the interfacial position between the nut portion 36b and the flange 36c.
  • the lateral hole 36d is inclined to the axis of the bolt hole 36 and passes through the interface substantially horizontally from the lowermost end position of the through-hole 36a to the interfacial position.
  • the drain bolt 50 is detachably attached to the bolt hole 36 from the outside of the oil pan 10.
  • the drain bolt 50 has a screw portion 51 and a head portion 52, and the screw portion 51 is engaged with the bolt hole 36 by screwing.
  • An O ring 53 for sealing a gap between the screw portion and the inner circumferential surface of the through-hole 36a is attached to the root portion of the screw portion 51.
  • the oil pan device 1 of the embodiment is configured such that when the drain bolt 50 is attached to the bolt hole 36, the head portion 52 is accommodated in the recessed portion 33.
  • a height position L of the lowermost end of the oil pan device 1 (here, the head portion 52 of the drain bolt 50) is positioned above a predetermined lower limit height of a vehicle and in the embodiment, a minimum ground clearance X.
  • FIG. 4A illustrates a level of oil remaining when the engine oil O is discharged by detaching the drain bolt 50 from the bolt hole 36 in the oil pan device 1 of the embodiment illustrated in FIG. 3 .
  • FIG. 4B illustrates a level of oil remaining in a configuration in which a drain bolt is uprightly attached in a recessed portion in an oil pan device 1' of Comparative Example without an inclined portion.
  • the lower end position (the height position indicated by the dashed line Z1) of the horizontal hole 36d of the bolt hole 36 is a level of oil remaining.
  • the lower end portion (the height position indicated by the dashed line Z2) of an opening of a horizontal hole 36d' of a bolt hole 36' in the oil pan 10' is a level of oil remaining.
  • the level of oil remaining (Z2) is positioned higher than the level of oil remaining (Z1) of the embodiment.
  • the amount of oil remaining can be reduced by the amount corresponding to (Z2 - Z1).
  • the recessed portion 33 formed by recessing the bottom surface portion 32 upward is provided and the head portion 52 of the drain bolt 50 is accommodated in the recessed portion 33.
  • the head portion 52 of the drain bolt 50 is accommodated in the recessed portion 33.
  • the top portion 33T of the recessed portion 33 of the embodiment is arranged oil pan 10 at a position higher than the position of the attachment surface F with the crankcase 5. Therefore, even in a case of using a thin oil pan to meet the minimum ground clearance X as a lower limit level, a space for accommodating the head portion 52 can be sufficiently secured.
  • an operation of attachment (detachment) of the drain bolt 50 can be easily performed using a longer spanner or wrench to which force is more easily applicable.
  • the recessed portion is partially recessed in a cylindrical shape, but the shape of the recessed portion may have other shapes.
  • the recessed portion may be formed in a substantially hemispherical shape.
  • the oil pan device of this disclosure it is possible to reduce the amount of oil remaining in an oil pan when engine oil is discharged.

Landscapes

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

Claims (2)

  1. Ensemble de bac à huile (1) comprenant :
    un bac à huile (10) qui est attaché à une extrémité inférieure d'un carter d'un moteur (5) ; et
    un boulon de drainage (50),
    le bac à huile comprenant :
    une section en retrait (33) formée par la mise en retrait vers le haut d'une section de surface de partie inférieure (32) ;
    une section inclinée (35) qui sectionne la section en retrait (33) ; et
    un trou de boulon (36) qui est disposé dans la section inclinée (35), caractérisé en ce que :
    quand le boulon de drainage (50) est attaché au trou de boulon (36), une section de tête (52) du boulon de drainage (50) est logée dans la section en retrait (33), et
    une section de partie supérieure de la section en retrait (33) est disposée à une position supérieure à une surface d'attachement du bac à huile (10) avec le carter (5).
  2. Ensemble de bac à huile (1) selon la revendication 1, dans lequel
    la section en retrait (33) est formée en une forme en V inversé dans une vue transversale.
EP16864363.3A 2015-11-12 2016-11-11 Ensemble bac à huile Active EP3375992B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015222131A JP6661984B2 (ja) 2015-11-12 2015-11-12 オイルパン装置
PCT/JP2016/083560 WO2017082402A1 (fr) 2015-11-12 2016-11-11 Ensemble bac à huile

Publications (3)

Publication Number Publication Date
EP3375992A1 EP3375992A1 (fr) 2018-09-19
EP3375992A4 EP3375992A4 (fr) 2019-07-17
EP3375992B1 true EP3375992B1 (fr) 2020-09-02

Family

ID=58695470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16864363.3A Active EP3375992B1 (fr) 2015-11-12 2016-11-11 Ensemble bac à huile

Country Status (5)

Country Link
US (1) US20180355772A1 (fr)
EP (1) EP3375992B1 (fr)
JP (1) JP6661984B2 (fr)
CN (1) CN108350774B (fr)
WO (1) WO2017082402A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109973172B (zh) * 2019-05-07 2024-02-06 哈尔滨工程大学 船用低速机防浪除杂质油底壳

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621155A (en) * 1924-07-03 1927-03-15 Studebaker Corp Internal-combustion engine
JPS61145818U (fr) * 1985-03-01 1986-09-09
JPH06147008A (ja) * 1992-11-11 1994-05-27 Toyota Autom Loom Works Ltd 内燃機関の可撓部材製オイルパン
JP3888969B2 (ja) * 2002-12-27 2007-03-07 本田技研工業株式会社 内燃機関のオイルパン
EP1762846B1 (fr) * 2005-09-09 2012-08-01 Honda Motor Co., Ltd. Structure de support de sonde d'huile
US20080110697A1 (en) * 2006-11-13 2008-05-15 Woo Kuen Kim Drain cock of engine oil pan for vehicle
JP4983690B2 (ja) * 2008-03-28 2012-07-25 マツダ株式会社 車両用エンジンの遮音装置
DE102008038260B9 (de) * 2008-08-11 2011-12-15 Elringklinger Ag Ölablass-Verschlusselement für eine Motor-Ölwanne
JP2012047092A (ja) * 2010-08-26 2012-03-08 Daihatsu Motor Co Ltd 内燃機関におけるオイルパンの構造
US20120318799A1 (en) * 2011-06-15 2012-12-20 GM Global Technology Operations LLC Drainable container system and weld nut thereof
WO2014079591A1 (fr) * 2012-11-26 2014-05-30 Mann+Hummel Gmbh Combinaison de filtres de carter d'huile, carter d'huile et dispositif d'évacuation d'une combinaison de filtres de carter d'huile
JP6308841B2 (ja) * 2014-03-31 2018-04-11 ダイハツ工業株式会社 タンクの構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20180355772A1 (en) 2018-12-13
CN108350774A (zh) 2018-07-31
CN108350774B (zh) 2020-07-07
EP3375992A4 (fr) 2019-07-17
WO2017082402A1 (fr) 2017-05-18
JP6661984B2 (ja) 2020-03-11
JP2017089533A (ja) 2017-05-25
EP3375992A1 (fr) 2018-09-19

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