FR2751726A1 - Improved fitting of lubrication system in vehicle gearbox for gear trains - Google Patents
Improved fitting of lubrication system in vehicle gearbox for gear trains Download PDFInfo
- Publication number
- FR2751726A1 FR2751726A1 FR9609367A FR9609367A FR2751726A1 FR 2751726 A1 FR2751726 A1 FR 2751726A1 FR 9609367 A FR9609367 A FR 9609367A FR 9609367 A FR9609367 A FR 9609367A FR 2751726 A1 FR2751726 A1 FR 2751726A1
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- FR
- France
- Prior art keywords
- lubricant
- toothed wheel
- gearbox
- additional
- pinions
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/14—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means
- F16N7/16—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means the oil being carried up by a lifting device
- F16N7/18—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means the oil being carried up by a lifting device with one or more feed members fixed on a shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0493—Gearings with spur or bevel gears
- F16H57/0494—Gearings with spur or bevel gears with variable gear ratio or for reversing rotary motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/14—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
La présente invention concerne un agencement pour la lubrification d'un train d'engrenages. The present invention relates to an arrangement for the lubrication of a gear train.
L'invention trouve plus particulièrement à s'appliquer pour la lubrification des engrenages d'une boîte de vitesses de véhicule automobile. The invention is more particularly applicable for the lubrication of the gears of a motor vehicle gearbox.
Le document US-A-3.529.698 décrit et représente un agencement pour la lubrification d'un train d'engrenages d'axes horizontaux montés à rotation dans un carter étanche dont le fond constitue un réservoir principal contenant un lubrifiant dans lequel trempe en permanence la partie inférieure d'une roue dentée dont la rotation provoque l'entraînement d'une partie du lubrifiant et son éjection par centrifugation en direction d'une surface de guidage qui oriente le lubrifiant éjecté en direction d'un réservoir additionnel supérieur de stockage temporaire dont le lubrifiant est évacué progressivement par gravité pour arroser des zones à lubrifier du train d'engrenages. Document US-A-3,529,698 describes and represents an arrangement for the lubrication of a train of gears of horizontal axes mounted for rotation in a sealed casing, the bottom of which constitutes a main reservoir containing a lubricant in which permanently soaks the lower part of a toothed wheel, the rotation of which causes a portion of the lubricant to be driven and to be ejected by centrifugation in the direction of a guide surface which directs the lubricant ejected towards an upper additional temporary storage tank the lubricant of which is gradually discharged by gravity to spray areas to be lubricated from the gear train.
Dans une mise en oeuvre connue du principe de l'agencement décrit dans le document US-A-3.529.698, la roue dentée qui trempe en permanence dans la partie inférieure du réservoir principal est la couronne du différentiel de la transmission associée à la boîte de vitesses. In a known implementation of the principle of the arrangement described in document US-A-3,529,698, the toothed wheel which permanently dips in the lower part of the main tank is the crown of the differential of the transmission associated with the gearbox of speeds.
L'alimentation du réservoir additionnel est assurée par la récupération de l'huile projetée par la couronne du différentiel, qui s'effectue uniquement sur le bord de la denture de la couronne. The supply to the additional tank is ensured by the recovery of the oil sprayed by the differential crown, which takes place only on the edge of the teeth of the crown.
Une telle récupération, et donc l'alimentation du réservoir additionnel, s'avère être insuffisante pour les faibles régimes de rotation de la couronne du différentiel. Such recovery, and therefore the supply to the additional tank, turns out to be insufficient for low speeds of rotation of the differential crown.
La partie supérieure du réservoir additionnel est une face supérieure ouverte du réservoir additionnel et l'on constate, de ce fait, que la quantité d'huile distribuée à haut régime devient trop importante. The upper part of the additional tank is an open upper face of the additional tank and it is found, therefore, that the amount of oil distributed at high speed becomes too large.
Enfin, le trop plein d'huile s'échappe du réservoir additionnel par sa face supérieure qui est ouverte. Finally, the overflow of oil escapes from the additional tank through its upper face which is open.
La présente invention a pour but de proposer un agencement du type mentionné dans le document US-A3.529.698 qui remédie aux inconvénients qui viennent d'être évoqués. The object of the present invention is to provide an arrangement of the type mentioned in document US-A3,529,698 which overcomes the drawbacks which have just been mentioned.
Dans ce but, I'inventiqn propose un agencement caractérisé en ce que la surface de guidage comporte une encoche en forme de U dans laquelle s'étend la roue dentée et dont les bords parallèles s'étendent en regard des flancs latéraux opposés de la roue dentée. To this end, the invention proposes an arrangement characterized in that the guide surface includes a U-shaped notch in which the toothed wheel extends and whose parallel edges extend opposite the opposite lateral flanks of the wheel. toothed.
Selon d'autres caractéristiques de l'invention
- le réservoir s'étend longitudinalement, sensiblement parallèlement à l'axe de rotation de la roue dentée, et l'encoche est agencée au voisinage d'une première des deux extrémités longitudinales du réservoir additionnel
- le réservoir additionnel comporte un orifice d'évacuation du trop plein de remplissage qui est agencé au voisinage de l'une des deux extrémités longitudinales opposées du réservoir additionnel
- L'orifice de trop plein est agencé au voisinage de ladite première extrémité du réservoir additionnel
- la face supérieure du réservoir additionnel est fermée
- le réservoir additionnel comporte une série de trous d'évacuation du lubrifiant, et l'un au moins des trous d'évacuation est situé à l'aplomb d'une zone à lubrifier du train d'engrenages
- les trous d'évacuation sont situés à des altitudes différentes. According to other features of the invention
the reservoir extends longitudinally, substantially parallel to the axis of rotation of the toothed wheel, and the notch is arranged in the vicinity of a first of the two longitudinal ends of the additional reservoir
the additional tank has an orifice for discharging the overflow of filling which is arranged in the vicinity of one of the two opposite longitudinal ends of the additional tank
- The overflow opening is arranged in the vicinity of said first end of the additional tank
- the upper side of the additional tank is closed
- the additional reservoir has a series of holes for discharging the lubricant, and at least one of the discharge holes is located directly above an area to be lubricated by the gear train
- the drainage holes are located at different altitudes.
L'invention propose également une boîte de vitesses de véhicule automobile, caractérisée en ce qu'elle comporte deux arbres primaire et secondaire qui portent chacun une série de pignons, associés par paires pour établir différents rapports de démultiplication, et en ce que les orifices d'évacuation du réservoir additionnel sont agencés respectivement au droit des paires de pignons. The invention also provides a motor vehicle gearbox, characterized in that it comprises two primary and secondary shafts which each carry a series of pinions, associated in pairs to establish different gear ratios, and in that the orifices d 'evacuation of the additional tank are arranged respectively to the right of the pairs of pinions.
Selon d'autres caractéristiques de la boîte de vitesses
- L'orifice d'évacuation du trop plein du réservoir additionnel est agencé au droit d'une partie du carter de la boîte de vitesses
- elle est associée à un différentiel dont la couronne constitue ladite roue dentée qui provoque l'alimentation du réservoir additionnel.According to other characteristics of the gearbox
- The overflow drain opening of the additional tank is arranged in line with part of the gearbox casing
- It is associated with a differential, the crown of which constitutes said toothed wheel which causes the supply to the additional tank.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels
- La figure I est une vue schématique en perspective éclatée d'une transmission de véhicule automobile équipée d'un agencement de lubrification de certains de ses engrenages réalisé conformément aux enseignements de l'invention;
- la figure 2 est un schéma qui illustre la transmission de la figure 1 en section par un plan horizontal médian du réservoir additionnel de lubrification ; et
- les figures 3 et 4 sont deux schémas illustrant le principe de fonctionnement du réservoir additionnel.Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the accompanying drawings in which
- Figure I is a schematic exploded perspective view of a motor vehicle transmission equipped with an lubrication arrangement of some of its gears produced in accordance with the teachings of the invention;
- Figure 2 is a diagram illustrating the transmission of Figure 1 in section through a median horizontal plane of the additional lubrication tank; and
- Figures 3 and 4 are two diagrams illustrating the operating principle of the additional tank.
On a représenté aux figures 1 et 2 une transmission 10 qui est une transmission de véhicule automobile qui est constituée par une boîte de vitesses 12 à laquelle est associé un différentiel 14. FIGS. 1 and 2 show a transmission 10 which is a motor vehicle transmission which consists of a gearbox 12 with which a differential 14 is associated.
La transmission 10 comporte, selon une conception connue, un carter 16 dans lequel sont montés à rotation des arbres primaire 18 et secondaire 20 de la boite de vitesses 12 dont les axes de rotation sont parallèles, ainsi que différents composants du différentiel 14 parmi lesquels une roue dentée de grand diamètre 22, aussi appelée couronne du différentiel 14, dont l'axe de rotation X-X est parallèle aux axes des arbres primaire 18 et secondaire 20. The transmission 10 comprises, according to a known design, a casing 16 in which are mounted for rotation the primary 18 and secondary 20 shafts of the gearbox 12 whose axes of rotation are parallel, as well as various components of the differential 14 among which a large diameter toothed wheel 22, also called differential crown 14, the axis of rotation XX of which is parallel to the axes of the primary 18 and secondary 20 shafts.
Selon une conception connue d'une boîte de vitesses les arbres primaire 18 et secondaire 20 portent chacun des pignons qui sont associés par paires, ici sous la forme de cinq paires de pignons P1 à P5 pour assurer notamment la formation de cinq rapports de marche avant en fonction de la commande de la boîte de vitesses. According to a known design of a gearbox the primary 18 and secondary 20 shafts each carry pinions which are associated in pairs, here in the form of five pairs of pinions P1 to P5 to ensure in particular the formation of five forward gears depending on the gearbox control.
Ainsi, les pignons de chaque paire Pi s'engrènent mutuellement et il est nécessaire de lubrifier ces pignons, de préférence au droit de la zone d'engrènement mutuel des pignons d'une paire, pour assurer simultanément la lubrification de deux pignons d'une même paire. Thus, the pinions of each pair Pi mesh with each other and it is necessary to lubricate these pinions, preferably in line with the zone of mutual engagement of the pinions of a pair, to simultaneously ensure the lubrication of two pinions of a same pair.
Selon une conception connue, la transmission 10 est du type à carter humide, c'est-à-dire que ie fond 24 du carter 16 constitue un réservoir principal de lubrifiant, notamment d'huile
H, dans lequel peuvent barboter au moins partiellement les pignons qui équipent les arbres primaire 18 et secondaire 20 ainsi que la partie inférieure de la couronne dentée 22.According to a known design, the transmission 10 is of the wet sump type, that is to say that the bottom 24 of the sump 16 constitutes a main reservoir of lubricant, in particular oil
H, in which the pinions which equip the primary 18 and secondary 20 shafts as well as the lower part of the ring gear 22 can bubble at least partially.
Selon un agencement connu, la lubrification des pignons de la boîte de vitesses est aussi assurée au moyen d'un réservoir additionnel supérieur 26 qui est ici réalisé sous la forme d'une pièce en tôle mécano-soudée qui est agencée dans le carter 16 de la boîte de vitesses 10 au-dessus des paires de pignons P1 à P5. According to a known arrangement, the lubrication of the pinions of the gearbox is also ensured by means of an upper additional tank 26 which is here produced in the form of a piece of mechanically welded sheet metal which is arranged in the casing 16 of the gearbox 10 above the pairs of pinions P1 to P5.
Le réservoir additionnel 26 comporte un fond 28 sensiblement horizontal, une paroi latérale 30 et une face supérieure fermée 32. The additional tank 26 has a substantially horizontal bottom 28, a side wall 30 and a closed upper face 32.
Conformément aux enseignements de l'invention l'alimentation du réservoir additionnel 26 est assurée par une surface 34 de guidage vers l'intérieur du réservoir additionnel 26 du lubrifiant projeté par centrifugation par la couronne dentée 22 du différentiel 14. In accordance with the teachings of the invention, the supply to the additional reservoir 26 is provided by a surface 34 for guiding the interior of the additional reservoir 26 of the lubricant sprayed by centrifugation by the ring gear 22 of the differential 14.
A cet effet, la surface de guidage 34 est une surface de tôle sensiblement horizontale dans laquelle est formée une encoche 38 en forme de U qui est délimitée par deux bords latéraux parallèles et opposés 40 et par un bord 42 de fond d'encoche qui est lui parallèle à l'axe X-X de rotation de la couronne dentée 22. For this purpose, the guide surface 34 is a substantially horizontal sheet surface in which a notch 38 is formed in the shape of a U which is delimited by two parallel and opposite lateral edges 40 and by an edge 42 of the bottom of the notch which is it parallel to the axis XX of rotation of the ring gear 22.
Les dimensions de l'encoche 38 sont telles que la couronne dentée 22 est reçue à rotation dans l'encoche 38 de manière que ses faces latérales opposées 23 s'étendent en regard des bords latéraux opposés 40 de l'encoche 38. The dimensions of the notch 38 are such that the ring gear 22 is received in rotation in the notch 38 so that its opposite lateral faces 23 extend opposite the opposite lateral edges 40 of the notch 38.
Ainsi, la récupération de l'huile projetée par centrifugation par la couronne dentée 22 se fait d'une part à sa périphérie, c'est-à-dire au niveau des dents 21 et, d'autre part, le long de ses faces latérales opposées 23, I'agencement selon l'invention augmentant ainsi de manière importante le phénomène de récupération de l'huile, y compris à faible vitesse de rotation de la couronne dentée 22. Thus, the recovery of the oil projected by centrifugation by the ring gear 22 is done on the one hand at its periphery, that is to say at the level of the teeth 21 and, on the other hand, along its faces opposite sides 23, the arrangement according to the invention thus significantly increasing the oil recovery phenomenon, including at low speed of rotation of the ring gear 22.
L'huile récupérée sur la surface 36 alimente le réservoir additionnel 26 par sa partie inférieure, et son trop plein éventuel est évacué du réservoir additionnel 26 par un orifice d'évacuation 44 qui est formé dans la paroi latérale 30 du réservoir additionnel 26 à l'extrémité longitudinale 46 de ce dernier située sensiblement à hauteur de la couronne dentée 22. The oil recovered on the surface 36 feeds the additional tank 26 through its lower part, and its possible overflow is evacuated from the additional tank 26 through an evacuation orifice 44 which is formed in the side wall 30 of the additional tank 26 to 1. the longitudinal end 46 of the latter situated substantially at the height of the ring gear 22.
La lubrification des paires de pignons P1 à P5 est assurée grâce à une série de cinq trous T1 à T5 qui sont formés dans la paroi latérale 30 du réservoir additionnel 26 chacun sensiblement au droit de l'une des paires de pignons P1 à P5. The lubrication of the pairs of pinions P1 to P5 is ensured by means of a series of five holes T1 to T5 which are formed in the side wall 30 of the additional tank 26 each substantially in line with one of the pairs of pinions P1 to P5.
Selon une variante de réalisation non représentée sur les figures, il est aussi possible de prévoir un second orifice d'évacuation du trop plein formé par exemple au niveau de l'autre extrémité longitudinale 48,du réservoir additionnel 26. According to an alternative embodiment not shown in the figures, it is also possible to provide a second overflow discharge orifice formed, for example at the other longitudinal end 48, of the additional tank 26.
Comme on peut le voir sur les schémas des figures 3 et 4, les cinq trous d'évacuation T1 à T5 sont formés à des altitudes différentes dans la paroi latérale 30 du réservoir additionnel 26. As can be seen in the diagrams of FIGS. 3 and 4, the five discharge holes T1 to T5 are formed at different altitudes in the side wall 30 of the additional tank 26.
Ainsi, le trou T1 situé au droit de la paire de pignons P1 assurant l'établissement du premier rapport de transmission de la boîte de vitesses 12 est l'orifice situé le plus bas, tandis que l'orifice T5 situé au droit de la paire de pignons P5 assurant l'établissement du cinquième rapport de transmission, de rang le plus élevé, est le trou d'altitude la plus élevée. Thus, the hole T1 located to the right of the pair of pinions P1 ensuring the establishment of the first transmission ratio of the gearbox 12 is the orifice located the lowest, while the orifice T5 located to the right of the pair pinions P5 ensuring the establishment of the fifth transmission ratio, of the highest rank, is the highest altitude hole.
Le fait que le réservoir additionnel 26 en forme de goulotte soit fermé à sa partie supérieure, ici par une face supérieure fermée 32, ou à titre de variante par une partie du carter proprement dit de la boîte de vitesses, permet d'assurer un meilleur contrôle global de l'écoulement de l'huile en direction du réservoir additionnel 26 et à partir de celui-ci vers l'extérieur. The fact that the additional reservoir 26 in the form of a chute is closed at its upper part, here by a closed upper face 32, or as a variant by a part of the casing proper of the gearbox, ensures better overall control of the flow of oil towards and from the additional tank 26.
L'agencement d'un ou plusieurs orifices d'évacuation du trop plein, par exemple l'orifice 44 au voisinage des extrémités longitudinales du réservoir additionnel 26, permet de diriger l'huile excédentaire vers le carter de la transmission en limitant les projections sur les pignons des arbres primaire 18 et secondaire 20. The arrangement of one or more overflow discharge orifices, for example the orifice 44 in the vicinity of the longitudinal ends of the additional reservoir 26, makes it possible to direct the excess oil towards the transmission casing by limiting projections onto the pinions of the primary 18 and secondary 20 shafts.
Le déversement d'une partie de l'huile sur les parties chaudes du carter, notamment sur les roulements à billes ou à rouleaux assurant le montage à rotation des différents arbres permet de contribuer au refroidissement de ces derniers. The pouring of part of the oil on the hot parts of the casing, in particular on the ball or roller bearings ensuring the rotational mounting of the different shafts makes it possible to contribute to the cooling of the latter.
Le diamètre ou la section des trous d'évacuation T1 à
T5 sont déterminés pour assurer une section de passage suffisante pour l'huile H nécessaire à la lubrification des pignons tout en évitant des projections d'huile surabondantes.The diameter or section of the drain holes T1 to
T5 are determined to ensure a sufficient passage section for the oil H necessary for the lubrication of the pinions while avoiding overabundant oil splashes.
L'altitude des différents trous T1 et T5 est déterminée en accord avec la démultiplication de chaque rapport de transmission. The altitude of the different holes T1 and T5 is determined in accordance with the reduction ratio of each transmission ratio.
Ainsi, le trou T1 de distribution situé au droit de la paire de pignons P1 est proche du fond 28 du réservoir additionnel 26 de manière que même une faible quantité d'huile collectée par le réservoir additionnel 26 puisse être dirigée vers les pignons, la vitesse de rotation du différentiel étant généralement faible lorsque le premier rapport de transmission est choisi. Thus, the distribution hole T1 located to the right of the pair of pinions P1 is close to the bottom 28 of the additional tank 26 so that even a small amount of oil collected by the additional tank 26 can be directed to the pinions, the speed differential rotation is generally low when the first gear ratio is chosen.
Par contre, le trou T5 de distribution d'huile situé au droit des pignons de la paire P5 est situé à l'altitude la plus élevée. Ainsi les pignons de la paire P5 ne sont lubrifiés que lorsque le réservoir additionnel est complètement rempli, ce qui correspond à un régime élevé de rotation du différentiel, cet état étant assuré dans la mesure où la vitesse de rotation du différentiel est généralement la plus élevée quand le rapport de plus haut rang est engagé. On the other hand, the oil distribution hole T5 located to the right of the pinions of the pair P5 is located at the highest altitude. Thus the pinions of the pair P5 are only lubricated when the additional tank is completely filled, which corresponds to a high speed of rotation of the differential, this state being ensured insofar as the speed of rotation of the differential is generally the highest when the highest ranking gear is engaged.
La très bonne distribution de l'huile de lubrification assurée par le réservoir additionnel 26 conforme aux enseignements de l'invention permet de réduire la quantité globale d'huile H contenue dans le carter de la transmission tout en facilitant le transfert de l'huile vers les pignons à faible régime de rotation de la transmission. The very good distribution of the lubricating oil provided by the additional reservoir 26 in accordance with the teachings of the invention makes it possible to reduce the overall quantity of oil H contained in the transmission casing while facilitating the transfer of the oil to the pinions at low speed of rotation of the transmission.
Cette meilleure lubrification "par le haut", permet de réduire la nécessité de faire barboter les pignons dans l'huile en partie inférieure et donc de limiter les pertes de puissance résultant de ce phénomène de barbotage. This better lubrication "from above" makes it possible to reduce the need to bubble the pinions in the oil at the bottom and therefore to limit the power losses resulting from this bubbling phenomenon.
Le trop plein d'huile est évacué sans qu'il soit projeté sur les pièces en mouvement. The overflow of oil is discharged without being projected onto the moving parts.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR9609367A FR2751726B1 (en) | 1996-07-25 | 1996-07-25 | IMPROVED ARRANGEMENT FOR THE LUBRICATION OF A GEAR TRAIN AND GEARBOX OF A MOTOR VEHICLE EQUIPPED WITH SUCH AN ARRANGEMENT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR9609367A FR2751726B1 (en) | 1996-07-25 | 1996-07-25 | IMPROVED ARRANGEMENT FOR THE LUBRICATION OF A GEAR TRAIN AND GEARBOX OF A MOTOR VEHICLE EQUIPPED WITH SUCH AN ARRANGEMENT |
Publications (2)
Publication Number | Publication Date |
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FR2751726A1 true FR2751726A1 (en) | 1998-01-30 |
FR2751726B1 FR2751726B1 (en) | 1998-09-18 |
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FR9609367A Expired - Lifetime FR2751726B1 (en) | 1996-07-25 | 1996-07-25 | IMPROVED ARRANGEMENT FOR THE LUBRICATION OF A GEAR TRAIN AND GEARBOX OF A MOTOR VEHICLE EQUIPPED WITH SUCH AN ARRANGEMENT |
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FR (1) | FR2751726B1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10119573A1 (en) * | 2001-04-21 | 2002-10-24 | Zahnradfabrik Friedrichshafen | Oil supply arrangement incorporates toothed wheels on shafts with bearings, clutch arrangement, oil collector duct, gear housing, partition in two parts |
FR2858039A1 (en) * | 2003-07-25 | 2005-01-28 | Renault Sa | Lubrification tank for cluster gear, has lateral wall and end block that controls oil flow poured out on cluster gears, and passage delimited by lateral wall and end block, to slow oil flow towards opening |
FR2891885A1 (en) | 2005-10-12 | 2007-04-13 | Peugeot Citroen Automobiles Sa | Gear lubricating device for motor vehicle`s gearbox, has guiding unit with spout immobilized in case so as to be extended along portion of teeth, and supplying lubricant from base zone to reservoir when ring gear is driven in rotation |
EP2199645A1 (en) | 2008-12-19 | 2010-06-23 | Getrag Ford Transmissions GmbH | Oiling chamfer for a gear and production method for the oiling chamfer |
DE102009052595A1 (en) * | 2009-11-10 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Lubricating system for a vehicle transmission |
US8456045B2 (en) | 2009-04-08 | 2013-06-04 | Toyota Jidosha Kabushiki Kaisha | Heat-generating portion cooling structure of vehicle drive apparatus |
WO2014108250A1 (en) | 2013-01-14 | 2014-07-17 | Renault S.A.S. | Arrangement for lubricating two vertically-staged adjacent geartrains |
EP2556275A4 (en) * | 2010-04-08 | 2015-07-01 | Scania Cv Ab | Lubrication system for a vehicle gearbox |
DE102014013468A1 (en) * | 2014-09-17 | 2016-03-17 | Ulrich Rohs | Bevel friction ring gear and method for operating a conical friction ring gear |
WO2020221495A1 (en) * | 2019-05-02 | 2020-11-05 | Psa Automobiles Sa | Motor vehicle gearbox |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB681298A (en) * | 1950-04-05 | 1952-10-22 | Tarpen Engineering Company Ltd | Improvements in or relating to gear cases for motor driven appliances |
US3529698A (en) * | 1967-05-05 | 1970-09-22 | Gen Electric | Self-operating lubrication system for gear drive units |
DE2915706A1 (en) * | 1978-04-27 | 1979-11-08 | Gen Motors Corp | GEAR WITH A LUBRICATION SYSTEM |
-
1996
- 1996-07-25 FR FR9609367A patent/FR2751726B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB681298A (en) * | 1950-04-05 | 1952-10-22 | Tarpen Engineering Company Ltd | Improvements in or relating to gear cases for motor driven appliances |
US3529698A (en) * | 1967-05-05 | 1970-09-22 | Gen Electric | Self-operating lubrication system for gear drive units |
DE2915706A1 (en) * | 1978-04-27 | 1979-11-08 | Gen Motors Corp | GEAR WITH A LUBRICATION SYSTEM |
Cited By (17)
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US7195103B2 (en) | 2001-04-21 | 2007-03-27 | Zf Friedrichshafen Ag | Oil supplying device |
DE10119573A1 (en) * | 2001-04-21 | 2002-10-24 | Zahnradfabrik Friedrichshafen | Oil supply arrangement incorporates toothed wheels on shafts with bearings, clutch arrangement, oil collector duct, gear housing, partition in two parts |
FR2858039A1 (en) * | 2003-07-25 | 2005-01-28 | Renault Sa | Lubrification tank for cluster gear, has lateral wall and end block that controls oil flow poured out on cluster gears, and passage delimited by lateral wall and end block, to slow oil flow towards opening |
EP1512891A2 (en) | 2003-07-25 | 2005-03-09 | Renault s.a.s. | Supplementary tank for lubricant for gear box |
EP1512891A3 (en) * | 2003-07-25 | 2010-03-17 | Renault s.a.s. | Supplementary tank for lubricant for gear box |
FR2891885A1 (en) | 2005-10-12 | 2007-04-13 | Peugeot Citroen Automobiles Sa | Gear lubricating device for motor vehicle`s gearbox, has guiding unit with spout immobilized in case so as to be extended along portion of teeth, and supplying lubricant from base zone to reservoir when ring gear is driven in rotation |
EP1775499A1 (en) | 2005-10-12 | 2007-04-18 | Peugeot Citroen Automobiles SA | Lubrication device of at least one gear of a transmission |
EP2199645A1 (en) | 2008-12-19 | 2010-06-23 | Getrag Ford Transmissions GmbH | Oiling chamfer for a gear and production method for the oiling chamfer |
DE112010001550B4 (en) * | 2009-04-08 | 2021-07-01 | Toyota Jidosha Kabushiki Kaisha | COOLING ARRANGEMENT FOR A HEAT GENERATING SECTION OF A VEHICLE DRIVE UNIT |
US8456045B2 (en) | 2009-04-08 | 2013-06-04 | Toyota Jidosha Kabushiki Kaisha | Heat-generating portion cooling structure of vehicle drive apparatus |
DE102009052595A1 (en) * | 2009-11-10 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Lubricating system for a vehicle transmission |
EP2556275A4 (en) * | 2010-04-08 | 2015-07-01 | Scania Cv Ab | Lubrication system for a vehicle gearbox |
WO2014108250A1 (en) | 2013-01-14 | 2014-07-17 | Renault S.A.S. | Arrangement for lubricating two vertically-staged adjacent geartrains |
DE102014013468A1 (en) * | 2014-09-17 | 2016-03-17 | Ulrich Rohs | Bevel friction ring gear and method for operating a conical friction ring gear |
US10422419B2 (en) | 2014-09-17 | 2019-09-24 | Ulrich Rohs | Conical friction ring transmission and method for operating a conical friction ring transmission |
WO2020221495A1 (en) * | 2019-05-02 | 2020-11-05 | Psa Automobiles Sa | Motor vehicle gearbox |
DE102019206283A1 (en) * | 2019-05-02 | 2020-11-05 | Psa Automobiles Sa | Motor vehicle manual transmission |
Also Published As
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