EP1070834B1 - Groupe motopropulseur comportant une entretoise de carter d'huile - Google Patents
Groupe motopropulseur comportant une entretoise de carter d'huile Download PDFInfo
- Publication number
- EP1070834B1 EP1070834B1 EP00401948A EP00401948A EP1070834B1 EP 1070834 B1 EP1070834 B1 EP 1070834B1 EP 00401948 A EP00401948 A EP 00401948A EP 00401948 A EP00401948 A EP 00401948A EP 1070834 B1 EP1070834 B1 EP 1070834B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine
- spacer
- power train
- transmission
- bracket
- 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.)
- Expired - Lifetime
Links
- 125000006850 spacer group Chemical group 0.000 title claims description 30
- 238000002485 combustion reaction Methods 0.000 title claims 3
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 230000000295 complement effect Effects 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 12
- 238000005452 bending Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000031968 Cadaver Diseases 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
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
- F01M11/0004—Oilsumps
- F01M2011/0054—Fastening to the cylinder block
-
- 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
- F01M2011/0058—Fastening to the transmission
Definitions
- the invention relates to a power train for motor vehicle.
- the invention relates more particularly to a group powertrain for a motor vehicle comprising longitudinally, from front to back, a heat engine and a transmission, of the type in which a rear face of a block longitudinal axis of the engine is rigidly connected to one side front of a transmission bell, including a bell for a flywheel, of the type that includes, in the right of a plan fixing an oil pan under the engine block, two horizontal squares, transversely opposed, comprising each a first fixed longitudinal front branch rigidly to the engine block, and a second rear branch cross rigidly attached to the bell to stiffen engine and transmission assembly.
- the attachment points of the engine block on the housing of the transmission are conventionally made in the form screw and nut assemblies.
- the squares must have many anchor points, which makes makes them difficult to assemble and disassemble, both from view of the time devoted to this operation, that of the position of anchor points before mounting.
- the multiplicity of anchor points increases all the number of machining to be performed on the engine block and the bell of the transmission casing, which increases the cost of manufacturing such a block engine and transmission case.
- these squares must be made of a material such as cast iron, which weighs down the group motorpropulseur.
- brackets integrated into an additional element of the engine block.
- brackets is not adapted to hold the bell in position optimally and in particular to absorb torsional stresses to which it is subject.
- the invention proposes a powertrain of the type previously described, comprising a spacer which is interposed vertically between the engine block and the sump, and on which are rigidly fixed the first front branches of the two brackets.
- This spacer advantageously allows to benefit from a increase the engine's lubricating oil capacity and, depending of the form of the spacer, to mount different types of sump on a same engine block.
- each square has the shape of a tetrahedron whose base forms the second branch back of the square, and whose body forms the first branch of the square.
- FIG. 1 shows the whole of a group power train 10 for a motor vehicle realized according to a state of the art.
- the powertrain 10 comprises longitudinally, from front to back, an engine 12 which is coupled to a transmission 14.
- a face rear transverse 16 of a motor unit 18 is rigidly connected to a front face 20 of a bell 22 of a housing (no represented) of the transmission 14.
- the bell 22 is particularly material made with the housing (not shown) of the transmission 14 and is intended to house a flywheel and / or a clutch (not shown) of the power train 10.
- the motor 12 comprises a crankshaft (not shown) which is coupled to a output axis A for driving the transmission 14 of the vehicle.
- the engine block 18 When the vehicle engine is running, the engine block 18 is subject to vibration and is therefore likely to transmit longitudinal bending stresses to the connection between the engine block 18 and the bell 22.
- the crankshaft when, for example during a strong recovery of the engine 12 of the vehicle, the crankshaft is subjected to a couple important, it transmits some of this torque to the engine block 18 of the engine 12 through the bearings that wear it from so that the block 18 is partially rotated around the axis A of the crankshaft and the output shaft of the 12.
- the connection of the engine block 18 to the bell 22 is is then strongly stressed in torsion, which is detrimental to the strength of the power train 10.
- brackets 26 which allow stiffen the assembly of the engine block 18 to the bell 22.
- the engine block 18 being assembled to the bell 22 by through anchor points such as screws and nuts (not shown) arranged regularly on the face rear block 18 of the engine 12, the block fixing means motor 18 on bell 22 do not extend below a plane P for fixing a group oil pan 28 power train 10 under the engine 12.
- the brackets 26 are arranged substantially in line with the P plane of fixation, that is to say the lowest possible relative to the axis A of the crankshaft of the engine 12 so as to ensure a recovery of bending and twisting forces that are transmitted in from block 18 of the engine 12.
- the power train 10 has two opposite squares 26 that are arranged in the plane P, on either side of the axis A of the crankshaft.
- brackets 26 are horizontally oriented and each include a first longitudinal front branch which is fixed on a part in vis-à-vis the corresponding side face 34 of the block 18 of motor 12, and a second transverse rear branch 32 which is fixed on a part opposite the front face 20 of the bell 22 of the transmission 14.
- the first branch before longitudinal 30 presents substantially the shape of a plate that is bolted to means of screw 36 on the corresponding lateral face 34 of the block 18.
- the side face 34 of the engine block 18 is machined to this effect so as to have a flat bearing surface for the first branch before 30 of the square 26.
- the second rear branch 32 is bolted by means of screws 40 on the front face 20 of the transmission bell 22, which is also machined appropriate.
- a reinforcing rib 41 interconnects the first branch before 30 and second rear branch 32.
- a spacer 42 which has brackets 26, is interposed between the block 18 of the engine 12 and the oil sump 28 of the engine 12.
- brackets 26 are integrated in the spacer 42, and they are made from matter with it.
- brackets 26 may, as unrepresented variants, be independent brackets that are attached, in a way analogous to that described with reference to FIG. lateral faces 44 of the spacer 42.
- This arrangement allows in particular, during the assembly of the power train 10, to be able to separately assemble the engine block 18 and its equipment on the one hand, and the spacer 42 and the brackets 26 on the other hand, which represents a saving of time at the time of the final assembly of the engine 12. In the final assembly of the power plant 12, all that remains is to fix the second transverse rear branch 32 of the brackets 26 on the front face 20 of the bell 22 of the transmission 14.
- the maximum rigidity of the final assembly powertrain 10 and minimum assembly time are obtained by producing the spacer 42 and the brackets 26 in one and the same room.
- the spacer 42 presents substantially the shape of a parallelepiped of which one face upper 46 is complementary to the shape of the outline of a lower face 48 of the engine block 18, and a lower face of which 50 is complementary to the shape of the outline of a face upper 52 of the oil sump 28.
- the spacer 42 advantageously allows adaptation of different types of casing from 28 to the same block motor 18, for little, that for each case, be used a spacer 42 of appropriate shape.
- This provision allows to significantly lower the production costs of a chain of engine manufacturing 12 to the extent that it is not necessary to provide engine block 18 corresponding to each type of sump 28, and to the extent that only one 18 "standard motor block can be adapted to different housings of oil 28.
- FIG. 3 illustrates in more detail the forms of the spacer 42.
- contour C 46 complementary to the contour of the corresponding part of the lower face 48 of the motor unit 18 previously described, and the lower face 50 of contour C 50 which is complementary in contour to the corresponding portion of FIG. the upper face 52 of the housing 28.
- the upper faces 46 and lower 50 comprise holes 53 for fixing the spacer 42 on the block motor 18 and on the sump 28.
- the spacer 42 is made in the form of a parallelepiped molded of an aluminum alloy which comprises openings 54 which open between its upper faces 46 and lower 50 to allow the passage of elements (no represented) of a mobile engine 12, in particular balancing weights of a crankshaft of the engine 12 and a motor timing pulley 12.
- brackets 26 are made integrally with the spacer 42.
- each bracket 26 has the shape of a tetrahedron whose base 56 forms the second rear branch 32 of the bracket 26, and whose body 72 forms the first branch before 30 of the square 26.
- the base 56 of each square 26 comprises, at its vertices 58 and 60 farthest from a median plane P ', which is vertical and contains the axis A of the crankshaft previously described, longitudinal holes 62 and 64 for fixing by screwing, using the corresponding screws 66 and 68, the square 26 on a drilled and tapped surface (not shown) of the front face 20 of the bell 22.
- the base 56 of each square is machined to allow a plane fit optimal of these two surfaces.
- each bracket 26 has a recess 70 from the molding of the spacer 42, which allows on the one hand to lighten the spacer 42, and on the other hand to increase the strength of the square 26, a hollow volume being, for a same bending or torsion stress, more resistant than full volume that could crack.
- the spacer 42 makes it possible to stiffen the assembly of the motor 12 with the transmission 14, of simplify the assembly of brackets 26 by reducing the number anchor points involved, and it allows to increase the oil capacity of the engine 12 by adding an oil sump 28 of appropriate volume, which allows, in particular, for a common-purpose passenger vehicle, to lengthen the interval of time between two successive oil changes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Arrangement Of Transmissions (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubricants (AREA)
Description
- le corps de chaque équerre comporte un évidement qui débouche dans sa base pour alléger et rigidifier l'équerre,
- les équerres sont réalisées venues de matière avec l'entretoise,
- l'entretoise est obtenue par moulage, notamment d'un alliage d'aluminium,
- l'entretoise parallélépipédique comporte des ouvertures qui débouchent entre ses faces supérieure et inférieure pour permettre le passage d'éléments d'un équipage mobile du moteur.
- la figure 1 est une vue partielle en perspective d'un groupe motopropulseur selon l'art antérieur comportant des équerres de liaison indépendantes ;
- la figure 2 est une vue partielle en perspective d'un groupe motopropulseur selon l'art antérieur comportant une entretoise selon l'invention ; et
- la figure 3 est une vue en perspective d'une entretoise selon l'invention.
Claims (7)
- Groupe motopropulseur (10) pour véhicule automobile comportant longitudinalement, d'avant en arrière, un moteur (12) thermique et une transmission (14), du type dans lequel une face arrière (16) d'un bloc (18) longitudinal du moteur (12) thermique est liée rigidement à une face avant (20) d'une cloche (22) de la transmission (14), notamment une cloche (22) pour un volant moteur, du type qui comporte, au droit d'un plan (P) de fixation d'un carter d'huile (28) sous le bloc (18) du moteur (12), deux équerres (26) horizontales, opposées transversalement, comportant chacune une première branche (30) avant longitudinale fixée rigidement au bloc moteur (18), et une deuxième branche (32) arrière transversale fixée rigidement à la cloche (22) pour rigidifier l'assemblage du moteur (12) et de la transmission (14), ledit groupe motopropulseur (10) comportant une entretoise (42) qui est interposée verticalement entre le bloc moteur (18) et le carter d'huile (28), et sur laquelle sont fixées rigidement les premières branches avant (30) des deux équerres (26) et caractérisé en ce que chaque équerre (26) présente la forme d'un tétraèdre dont la base (56) forme la deuxième branche arrière (32) de l'équerre (26), et dont le corps (72) forme la première branche (30) de l'équerre (26).
- Groupe motopropulseur (10) selon la revendication 1, caractérisé en ce que l'entretoise (42) du carter d'huile (28) présente sensiblement la forme d'un parallélépipède dont une face supérieure (46) est complémentaire de la forme du contour de la face inférieure (48) du bloc moteur (18), et dont la face inférieure (50) est complémentaire de la forme du contour de la face supérieure (52) du carter d'huile (42), pour permettre l'adaptation d'un carter d'huile (28) associé au bloc moteur (18).
- Groupe motopropulseur (10) selon la revendication 1, caractérisé en ce que chaque équerre (26) tétraédrique comporte, aux sommets (58, 60) de sa base (56) les plus éloignés d'un plan médian (P') du moteur (12), deux perçages (62, 64) longitudinaux pour la fixation par vissage de l'équerre (26) sur une surface percée complémentaire de la cloche (22) de transmission.
- Groupe motopropulseur (10) selon l'une des revendications 1 ou 3, caractérisé en ce que le corps (72) de chaque équerre comporte un évidement (70) qui débouche dans sa base (56) pour alléger et rigidifier l'équerre (26).
- Groupe motopropulseur (10) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les équerres (26) sont réalisées venues de matière avec l'entretoise (42).
- Groupe motopropulseur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'entretoise (42) est obtenue par moulage, notamment d'un alliage d'aluminium.
- Groupe motopropulseur (10) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'entretoise (46) parallélépipédique comporte des ouvertures (54) qui débouchent entre ses faces supérieure (46) et inférieure (50) pour permettre le passage d'éléments d'un équipage mobile du moteur (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9909438 | 1999-07-21 | ||
FR9909438A FR2796702B1 (fr) | 1999-07-21 | 1999-07-21 | Groupe motopropulseur comportant une entretoise de carter d'huile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1070834A1 EP1070834A1 (fr) | 2001-01-24 |
EP1070834B1 true EP1070834B1 (fr) | 2005-03-30 |
Family
ID=9548334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00401948A Expired - Lifetime EP1070834B1 (fr) | 1999-07-21 | 2000-07-06 | Groupe motopropulseur comportant une entretoise de carter d'huile |
Country Status (5)
Country | Link |
---|---|
US (1) | US6374794B1 (fr) |
EP (1) | EP1070834B1 (fr) |
AT (1) | ATE292233T1 (fr) |
DE (1) | DE60019033D1 (fr) |
FR (1) | FR2796702B1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7387190B2 (en) * | 2003-12-17 | 2008-06-17 | General Motors Corporation | Oil pan assembly and method of selecting an oil pan |
US6928974B1 (en) * | 2004-01-30 | 2005-08-16 | Demetrios Markou | Reinforcement plate for a reciprocating engine |
DE202007008481U1 (de) | 2007-06-13 | 2008-10-23 | Mann+Hummel Gmbh | Ölwanne für eine Brennkraftmaschine-Getriebe-Einheit |
US8011342B2 (en) * | 2008-07-16 | 2011-09-06 | Polaris Industries Inc. | Wet oil sump for four cycle engine |
US20100229821A1 (en) * | 2009-03-13 | 2010-09-16 | Filtrauto | Plastic Structural Oil Sump with Fitted-on Bottom for a Combustion Engine and Method of Fabricating such a Sump |
DE102013018449A1 (de) * | 2013-11-05 | 2015-05-07 | Man Truck & Bus Ag | Ölwanne und Achsträger mit einer schrägen Flanschfläche |
GB2548425B (en) * | 2016-02-15 | 2020-07-01 | A Clark Mathew | Two-part structural oil pan |
FR3113625A1 (fr) | 2020-08-25 | 2022-03-04 | Psa Automobiles Sa | Groupe motopropulseur comprenant un dispositif de rigidification mecanique |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2837063A (en) * | 1955-10-31 | 1958-06-03 | Martinez Rafael | Device for clamping a crank case oil pan to the base of a gasoline engine |
US3100028A (en) * | 1961-03-14 | 1963-08-06 | Ford Motor Co | Lubricant sump |
BE794095A (fr) * | 1972-02-04 | 1973-05-16 | Berliet Automobiles | Perfectionnement au carter des moteurs a combustion interne de vehicules |
US4245595A (en) * | 1977-09-13 | 1981-01-20 | Nissan Motor Company, Limited | Internal combustion engine for motor vehicles |
US4294333A (en) * | 1978-07-20 | 1981-10-13 | Little Barry S | Oil pan adaptor for internal combustion engines |
JPS593180Y2 (ja) * | 1980-11-26 | 1984-01-28 | 日産自動車株式会社 | 内燃機関のシリンダブロツク |
JPH0219531Y2 (fr) * | 1985-03-25 | 1990-05-30 | ||
JPH0413402Y2 (fr) * | 1986-04-23 | 1992-03-27 | ||
US5016584A (en) * | 1988-10-11 | 1991-05-21 | Honda Giken Kogyo Kabushiki Kaisha | Engine block construction with skeletal frame |
JPH0343513U (fr) * | 1989-09-07 | 1991-04-24 | ||
DE4334858C1 (de) * | 1993-10-13 | 1995-04-20 | Vaw Ver Aluminium Werke Ag | Ölwanne und Verfahren zu ihrer Herstellung |
DE19746032C2 (de) * | 1996-10-21 | 2001-02-01 | Nissan Motor | Ölwannenbaugruppe für Verbrennungskraftmaschine |
-
1999
- 1999-07-21 FR FR9909438A patent/FR2796702B1/fr not_active Expired - Lifetime
-
2000
- 2000-07-06 DE DE60019033T patent/DE60019033D1/de not_active Expired - Lifetime
- 2000-07-06 AT AT00401948T patent/ATE292233T1/de not_active IP Right Cessation
- 2000-07-06 EP EP00401948A patent/EP1070834B1/fr not_active Expired - Lifetime
- 2000-07-21 US US09/621,866 patent/US6374794B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2796702A1 (fr) | 2001-01-26 |
EP1070834A1 (fr) | 2001-01-24 |
DE60019033D1 (de) | 2005-05-04 |
US6374794B1 (en) | 2002-04-23 |
FR2796702B1 (fr) | 2001-09-07 |
ATE292233T1 (de) | 2005-04-15 |
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