EP1086301B1 - Motor vehicle engine unit oil tank - Google Patents

Motor vehicle engine unit oil tank Download PDF

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Publication number
EP1086301B1
EP1086301B1 EP99922236A EP99922236A EP1086301B1 EP 1086301 B1 EP1086301 B1 EP 1086301B1 EP 99922236 A EP99922236 A EP 99922236A EP 99922236 A EP99922236 A EP 99922236A EP 1086301 B1 EP1086301 B1 EP 1086301B1
Authority
EP
European Patent Office
Prior art keywords
pan
engine unit
compartment
compartment according
vehicle
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
Application number
EP99922236A
Other languages
German (de)
French (fr)
Other versions
EP1086301A1 (en
Inventor
Pierre-Louis Vernhes
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
Renault Vehicules Industriels SA
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, Renault Vehicules Industriels SA filed Critical Renault SAS
Publication of EP1086301A1 publication Critical patent/EP1086301A1/en
Application granted granted Critical
Publication of EP1086301B1 publication Critical patent/EP1086301B1/en
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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation
    • 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
    • F01M2011/0025—Oilsumps with heat exchangers

Definitions

  • the present invention relates to an oil tank for the motor vehicle engine unit.
  • the engine groups of vehicles automobiles include a main housing open down and a bowl fixed on the lower peripheral edge of the main casing and which constitutes a reserve for the lubricating oil of the engine group, a pump for circulating the lubricating oil from of this reserve through the engine group organs.
  • the purpose of the present invention is to provide a solution radically different.
  • the invention relates to a lubricating oil tank for the engine group arranged in an engine compartment, opened by below, of a motor vehicle, which includes a tarpaulin flat which is arranged in the lower part of said compartment, in below said motor group, and which is connected to said motor group of a partly by at least one oil outlet pipe and partly by at less an oil inlet pipe connected to the oil pump of said group motor.
  • said cover extends approximately over the entire surface of the lower part of said compartment.
  • said tarpaulin can advantageously include a lower part connected to said oil inlet pipe.
  • said outlet conduit is preferably connected to the lower part of a bowl of said motor group.
  • said tarpaulin is preferably arranged at less partly in the air flow delivered by the fan of said motor group and the air flow under the vehicle.
  • the wall of said cover comprises preferably projecting outer and / or inner ribs.
  • said conduits are preferably deformable.
  • said tarpaulin can advantageously be fixed, at least partially, to the structure of said vehicle.
  • the means for fixing said sheet to the structure of said vehicle are preferably deformable.
  • said tarpaulin can advantageously be fixed, at least partially, to said power unit.
  • the means for fixing said cover to said motor group are preferably deformable.
  • the solution proposed by the invention allows in particular to use gravity to bring the lubricating oil from the crankcase up the tarp, improve the cooling of the oil lubrication, to use the tarpaulin as a means of masking the noise of the group motor.
  • a motor unit 1 of a motor vehicle all of which equipment is carried by a casing 2 and at the front of which is provided a fan group 3.
  • the engine group 1 is arranged in a compartment 4 of the vehicle whose structure or body includes two side members 5 which extend on either side and at a distance from the power unit 1.
  • the engine group 1 is fitted with a low oil tank 6 thickness and large opposite main surfaces, including the walls are for example sheet metal.
  • This cover 6 has a part 7 which extends substantially horizontally below and away from the power unit 1, as well as longitudinal sides 8 which extend upwards so that the sheet 6, in cross section, is substantially under the shape of a U whose bottom is formed by part 7 and whose branches 8 move apart, the upper edges of the flanks 8 extending just below the side rails 5.
  • part 7 of the sheet 6 has a front part 7a which is situated at a level lower than its part rear 7b, these parts 7a and 7b being connected by an intermediate part 7c tilted forward.
  • the cover 6 is suspended from the vehicle body by means of connecting strips 9 which connect the upper edges of its sides 8 to lower parts of the side members 5, these bands 9 incorporating preferably a material that is deformable so as to absorb vibrations and dimensional variations.
  • the upper rear part 7b of the cover 8 is connected to a bowl dry bottom 10 of the motor unit 1 thanks to an outlet duct 11, the bowl 10 being arranged so as to collect the oil from lubrication circulating in the engine group 1.
  • the lower part 7a of the cover 6 is connected to the entry of a oil pump 12 of the engine group 1 via a conduit input 13.
  • the conduits 11 and 13 are at least partly in a material which can be deformed so that it can absorb vibrations and dimensional variations.
  • Pump 12 of engine group 1 sucks in lubricating oil to the lowest part 7a of the sheet 6 through the conduit 13, the oil descending by gravity into the cover 6 of its rear upper part towards its lower front part.
  • the cover 6 constitutes a reservoir of lubricating oil outside the power unit 1.
  • the cover 6 for lubricating oil is in the air flow circulating in the lower part of compartment 4 of the vehicle, below the engine group 1. It is also located in the air flow generated by the fan unit 3 and the circulating air under the vehicle.
  • the walls of the tarpaulin 6 have external ribs 14 and ribs interior 15 shown schematically in FIG. 2 and carried out in a conventional manner.
  • the cover 6 for lubricating oil extending almost over the entire surface of the lower part of compartment 4 of the vehicle, it contributes to the masking of the noise generated by the power unit 1 placed in this compartment, its surface can advantageously be coated with sound absorbers
  • the motor unit 1 no longer comprising a tank large internal oil, the lower part of its casing 2 can advantageously be reduced and contribute to the strengthening and engine stiffness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Description

La présente invention concerne un réservoir d'huile pour le groupe-moteur d'un véhicule automobile.The present invention relates to an oil tank for the motor vehicle engine unit.

Il est habituel que les groupes moteurs des véhicules automobiles comprennent un carter principal ouvert vers le bas et une cuvette fixée sur le bord périphérique inférieur du carter principal et qui constitue une réserve pour l'huile de lubrification du groupe-moteur, une pompe permettant de faire circuler l'huile de lubrification à partir de cette réserve au travers des organes du groupe-moteur.It is usual for the engine groups of vehicles automobiles include a main housing open down and a bowl fixed on the lower peripheral edge of the main casing and which constitutes a reserve for the lubricating oil of the engine group, a pump for circulating the lubricating oil from of this reserve through the engine group organs.

Le but de la présente invention est de proposer une solution radicalement différente.The purpose of the present invention is to provide a solution radically different.

L'invention a pour objet un réservoir d'huile de lubrification pour le groupe-moteur disposé dans un compartiment-moteur, ouvert par en-dessous, d'un véhicule automobile, qui comprend une bâche de forme plate qui est disposée dans la partie inférieure dudit compartiment, en dessous dudit groupe-moteur, et qui est reliée audit groupe-moteur d'une part par au moins un conduit de sortie d'huile et d'autre part par au moins un conduit d'entrée d'huile connecté à la pompe à huile dudit groupe-moteur.The invention relates to a lubricating oil tank for the engine group arranged in an engine compartment, opened by below, of a motor vehicle, which includes a tarpaulin flat which is arranged in the lower part of said compartment, in below said motor group, and which is connected to said motor group of a partly by at least one oil outlet pipe and partly by at less an oil inlet pipe connected to the oil pump of said group motor.

Selon l'invention, ladite bâche s'étend approximativement sur toute la surface de la partie inférieure dudit compartiment.According to the invention, said cover extends approximately over the entire surface of the lower part of said compartment.

Selon l'invention, ladite bâche peut avantageusement comprendre une partie basse reliée audit conduit d'entrée d'huile.According to the invention, said tarpaulin can advantageously include a lower part connected to said oil inlet pipe.

Selon l'invention, ledit conduit de sortie est de préférence relié à la partie inférieure d'une cuvette dudit groupe-moteur.According to the invention, said outlet conduit is preferably connected to the lower part of a bowl of said motor group.

Selon l'invention, ladite bâche est de préférence disposée au moins en partie dans le flux d'air délivré par le ventilateur dudit groupe-moteur et le flux d'air sous véhicule.According to the invention, said tarpaulin is preferably arranged at less partly in the air flow delivered by the fan of said motor group and the air flow under the vehicle.

Selon l'invention, la paroi de ladite bâche comprend de préférence des nervures extérieures et/ou intérieures en saillie.According to the invention, the wall of said cover comprises preferably projecting outer and / or inner ribs.

Selon l'invention, lesdits conduits sont de préférence déformables. According to the invention, said conduits are preferably deformable.

Selon l'invention, ladite bâche peut avantageusement être fixée, au moins partiellement, à la structure dudit véhicule.According to the invention, said tarpaulin can advantageously be fixed, at least partially, to the structure of said vehicle.

Selon l'invention, les moyens de fixation de ladite bâche à la structure dudit véhicule sont de préférence déformables.According to the invention, the means for fixing said sheet to the structure of said vehicle are preferably deformable.

Selon l'invention, ladite bâche peut avantageusement être fixée, au moins partiellement, audit groupe-moteur.According to the invention, said tarpaulin can advantageously be fixed, at least partially, to said power unit.

Selon l'invention, les moyens de fixation de ladite bâche audit groupe-moteur sont de préférence déformables.According to the invention, the means for fixing said cover to said motor group are preferably deformable.

Ainsi, la solution proposée par l'invention permet notamment d'utiliser la gravité pour amener l'huile de lubrification depuis le carter jusqu'à la bâche, d'améliorer le refroidissement de l'huile de lubrification, d'utiliser la bâche comme moyen de masquage du bruit du groupe-moteur.Thus, the solution proposed by the invention allows in particular to use gravity to bring the lubricating oil from the crankcase up the tarp, improve the cooling of the oil lubrication, to use the tarpaulin as a means of masking the noise of the group motor.

La présente invention sera mieux comprise à l'étude d'un groupe-moteur d'un véhicule automobile équipé d'un réservoir d'huile de lubrification, décrit à titre d'exemple non limitatif et illustré par le dessin sur lequel :

  • la figure 1 représente une vue longitudinale d'un groupe-moteur d'un véhicule automobile, le réservoir d'huile de lubrification étant en coupe ;
  • et la figure 2 représente une vue en bout dudit groupe-moteur, le réservoir d'huile de lubrification étant en coupe transversale.
The present invention will be better understood from the study of an engine group of a motor vehicle equipped with a lubricating oil reservoir, described by way of nonlimiting example and illustrated by the drawing in which:
  • FIG. 1 represents a longitudinal view of an engine group of a motor vehicle, the lubricating oil reservoir being in section;
  • and Figure 2 shows an end view of said engine group, the lubricating oil reservoir being in cross section.

En se reportant aux figures, on voit qu'on a représenté un groupe-moteur 1 d'un véhicule automobile, dont l'ensemble des équipements est porté par un carter 2 et à l'avant duquel est prévu un groupe-ventilateur 3.Referring to the figures, we see that a motor unit 1 of a motor vehicle, all of which equipment is carried by a casing 2 and at the front of which is provided a fan group 3.

Le groupe-moteur 1 est disposé dans un compartiment 4 du véhicule dont la structure ou caisse comprend deux longerons 5 qui s'étendent de part et d'autre et à distance du groupe-moteur 1.The engine group 1 is arranged in a compartment 4 of the vehicle whose structure or body includes two side members 5 which extend on either side and at a distance from the power unit 1.

Le groupe-moteur 1 est équipé d'une bâche à huile 6 de faible épaisseur et de grandes surfaces principales opposées, dont les parois sont par exemple en tôle.The engine group 1 is fitted with a low oil tank 6 thickness and large opposite main surfaces, including the walls are for example sheet metal.

Cette bâche 6 présente une partie 7 qui s'étend sensiblement horizontalement en-dessous et à distance du groupe-moteur 1, ainsi que des flancs longitudinaux 8 qui s'étendent vers le haut de telle sorte que la bâche 6, en coupe transversale, se présente sensiblement sous la forme d'un U dont le fond est formé par la partie 7 et dont les branches 8 vont en s'écartant, les bords supérieures des flancs 8 s'étendant juste en-dessous des longerons 5.This cover 6 has a part 7 which extends substantially horizontally below and away from the power unit 1, as well as longitudinal sides 8 which extend upwards so that the sheet 6, in cross section, is substantially under the shape of a U whose bottom is formed by part 7 and whose branches 8 move apart, the upper edges of the flanks 8 extending just below the side rails 5.

Dans l'exemple représenté, la partie 7 de la bâche 6 présente une partie avant 7a qui est située à un niveau inférieur à sa partie arrière 7b, ces parties 7a et 7b étant reliées par une partie intermédiaire 7c inclinée vers l'avant.In the example shown, part 7 of the sheet 6 has a front part 7a which is situated at a level lower than its part rear 7b, these parts 7a and 7b being connected by an intermediate part 7c tilted forward.

La bâche 6 est suspendue à la caisse du véhicule grâce à des bandes de liaison 9 qui relient les bords supérieurs de ses flancs 8 aux parties inférieures des longerons 5, ces bandes 9 incorporant de préférence un matériau déformable de manière à absorber les vibrations et les variations dimensionnelles.The cover 6 is suspended from the vehicle body by means of connecting strips 9 which connect the upper edges of its sides 8 to lower parts of the side members 5, these bands 9 incorporating preferably a material that is deformable so as to absorb vibrations and dimensional variations.

La partie arrière haute 7b de la bâche 8 est reliée à une cuvette inférieure sèche 10 du groupe-moteur 1 grâce à un conduit de sortie 11, la cuvette 10 étant disposée de manière à collecter l'huile de lubrification circulant dans le groupe-moteur 1.The upper rear part 7b of the cover 8 is connected to a bowl dry bottom 10 of the motor unit 1 thanks to an outlet duct 11, the bowl 10 being arranged so as to collect the oil from lubrication circulating in the engine group 1.

La partie basse 7a de la bâche 6 est reliée à l'entrée d'une pompe à huile 12 du groupe-moteur 1 par l'intermédiaire d'un conduit d'entrée 13.The lower part 7a of the cover 6 is connected to the entry of a oil pump 12 of the engine group 1 via a conduit input 13.

De préférence, les conduits 11 et 13 sont au moins en partie en un matériau déformable de manière à pouvoir absorber les vibrations et les variations dimensionnelles.Preferably, the conduits 11 and 13 are at least partly in a material which can be deformed so that it can absorb vibrations and dimensional variations.

Ainsi, l'huile de lubrification, collectée dans la cuvette 10 du groupe-moteur descend par gravité dans le conduit de sortie 11 et pénètre dans la partie 7b de la bâche 6.Thus, the lubricating oil, collected in the bowl 10 of the power unit descends by gravity into the outlet duct 11 and enters part 7b of the sheet 6.

La pompe 12 du groupe-moteur 1 aspire l'huile de lubrification à la partie la plus basse 7a de la bâche 6 au travers du conduit 13, l'huile descendant par gravité dans la bâche 6 de sa partie haute arrière vers sa partie basse avant.Pump 12 of engine group 1 sucks in lubricating oil to the lowest part 7a of the sheet 6 through the conduit 13, the oil descending by gravity into the cover 6 of its rear upper part towards its lower front part.

Ainsi, la bâche 6 constitue un réservoir d'huile de lubrification extérieur au groupe-moteur 1. Thus, the cover 6 constitutes a reservoir of lubricating oil outside the power unit 1.

Vu sa disposition, la bâche 6 d'huile de lubrification se trouve dans le flux d'air circulant dans la partie inférieure du compartiment 4 du véhicule, en-dessous du groupe-moteur 1. Elle se trouve en outre dans le flux d'air engendré par le groupe-ventilateur 3 et l'air circulant sous le véhicule.Due to its arrangement, the cover 6 for lubricating oil is in the air flow circulating in the lower part of compartment 4 of the vehicle, below the engine group 1. It is also located in the air flow generated by the fan unit 3 and the circulating air under the vehicle.

Pour améliorer les échanges thermiques entre la bâche 6 d'huile de lubrification et le flux d'air circulant autour, les parois de la bâche 6 présentent des nervures extérieues 14 et des nervures intérieures 15 représentées de façon schématique sur la figure 2 et réalisées de façon classique.To improve heat exchange between the tarpaulin 6 lubricating oil and the air flow circulating around it, the walls of the tarpaulin 6 have external ribs 14 and ribs interior 15 shown schematically in FIG. 2 and carried out in a conventional manner.

Par ailleurs, la bâche 6 d'huile de lubrification s'étendant quasiment sur toute la surface de la partie inférieure du compartiment 4 du véhicule, elle contribue au masquage du bruit généré par le groupe-moteur 1 disposé dans ce compartiment, sa surface peuvant avantageusement être revêtue d'absorbant phoniquesFurthermore, the cover 6 for lubricating oil extending almost over the entire surface of the lower part of compartment 4 of the vehicle, it contributes to the masking of the noise generated by the power unit 1 placed in this compartment, its surface can advantageously be coated with sound absorbers

En outre, le groupe-moteur 1 ne comprenant plus de réservoir d'huile interne volumineux, la partie inférieure de son carter 2 peut avantageusement être réduite et contribuer au renforcement et à la rigidité du moteur.In addition, the motor unit 1 no longer comprising a tank large internal oil, the lower part of its casing 2 can advantageously be reduced and contribute to the strengthening and engine stiffness.

Claims (10)

  1. Compartment (4) equipped with a motor vehicle engine unit (1) and with a lubricating-oil reservoir (7), the said compartment being open at the bottom, and the said reservoir comprising a pan (6) arranged in the lower part of the said compartment under the engine unit, the said pan being connected to the engine unit, on the one hand, by at least one oil outlet pipe (11) and, on the other hand, by at least one oil inlet pipe (13) connected to the oil pump (12) of the said engine unit, characterized in that the said pan (6) is of flat shape and extends approximately across the entire surface of the lower part of the compartment.
  2. Compartment according to Claim 1, characterized in that the pan (6) comprises a high part (7b) connected to the said outlet pipe (11), and a low part (7a) connected to the said oil inlet pipe (13).
  3. Compartment according to Claim 1 or 2, characterized in that the outlet pipe (11) is connected to the lower part of a sump cover (10) of the engine unit (1).
  4. Compartment according to one of the preceding claims, characterized in that the pan (6) is arranged at least partly in the air flow delivered by the fan unit (3) of the engine unit, and in the air flow under the vehicle.
  5. Compartment according to one of the preceding claims, characterized in that the wall of the pan (6) has projecting external (14) and/or internal (15) ribs.
  6. Compartment according to one of the preceding claims, characterized in that the oil inlet and outlet pipes (13, 11) are deformable.
  7. Compartment according to one of the preceding claims, characterized in that the pan (6) is fixed at least partially to the structure (5) of the vehicle.
  8. Compartment according to Claim 7, characterized in that the means of fixing the pan to the structure of the vehicle are deformable.
  9. Compartment according to one of the preceding claims, characterized in that the pan (6) is fixed at least partially to the engine unit (1).
  10. Compartment according to Claim 9, characterized in that the means of fixing the pan to the engine are deformable.
EP99922236A 1998-06-08 1999-05-28 Motor vehicle engine unit oil tank Expired - Lifetime EP1086301B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9807172A FR2779478B1 (en) 1998-06-08 1998-06-08 OIL TANK FOR A MOTOR VEHICLE ENGINE GROUP
FR9807172 1998-06-08
PCT/FR1999/001256 WO1999064730A1 (en) 1998-06-08 1999-05-28 Motor vehicle engine unit oil tank

Publications (2)

Publication Number Publication Date
EP1086301A1 EP1086301A1 (en) 2001-03-28
EP1086301B1 true EP1086301B1 (en) 2003-01-02

Family

ID=9527125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99922236A Expired - Lifetime EP1086301B1 (en) 1998-06-08 1999-05-28 Motor vehicle engine unit oil tank

Country Status (6)

Country Link
US (1) US6488002B1 (en)
EP (1) EP1086301B1 (en)
DE (1) DE69904721T2 (en)
ES (1) ES2187157T3 (en)
FR (1) FR2779478B1 (en)
WO (1) WO1999064730A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR843431A (en) * 1938-08-16 1939-07-03 Ets Ringhoffer Tatra Sa Internal combustion engine, in particular for rear engine motor vehicles
JPS5629010A (en) * 1979-08-17 1981-03-23 Nissan Motor Co Ltd Lubricator for internal combustion engine
DE3334044C2 (en) * 1983-09-21 1985-11-07 Audi AG, 8070 Ingolstadt Reciprocating internal combustion engine
US4674457A (en) * 1986-06-02 1987-06-23 Ford Motor Company Dry sump crankcase
US4677947A (en) * 1986-06-30 1987-07-07 Beaumont Bousquet Clamped, readily-removable oil pan without drain hole
US4909203A (en) * 1988-04-26 1990-03-20 Honda Giken Kabushiki Kaisha Oil reservoir structure for engine
DE4014788C1 (en) * 1990-05-09 1991-03-14 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
DE19629210A1 (en) * 1996-07-22 1998-02-12 Daimler Benz Ag Internal combustion engine
JP3552414B2 (en) * 1996-08-27 2004-08-11 日産自動車株式会社 Oil pan device for internal combustion engine
US5740772A (en) * 1996-10-18 1998-04-21 Midwest Instrument Co., Inc. Oil filter cooler
JPH11324631A (en) * 1998-05-14 1999-11-26 Kioritz Corp Separate lubricating system for internal combustion engine

Also Published As

Publication number Publication date
DE69904721T2 (en) 2003-10-23
ES2187157T3 (en) 2003-05-16
US6488002B1 (en) 2002-12-03
WO1999064730A1 (en) 1999-12-16
FR2779478A1 (en) 1999-12-10
FR2779478B1 (en) 2000-12-15
DE69904721D1 (en) 2003-02-06
EP1086301A1 (en) 2001-03-28

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