FR2744508A1 - Lubrication arrangement for gear trains in vehicle's gearbox - Google Patents
Lubrication arrangement for gear trains in vehicle's gearbox Download PDFInfo
- Publication number
- FR2744508A1 FR2744508A1 FR9601489A FR9601489A FR2744508A1 FR 2744508 A1 FR2744508 A1 FR 2744508A1 FR 9601489 A FR9601489 A FR 9601489A FR 9601489 A FR9601489 A FR 9601489A FR 2744508 A1 FR2744508 A1 FR 2744508A1
- Authority
- FR
- France
- Prior art keywords
- lubricant
- casing
- upper wall
- gear train
- arrangement according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0447—Control of lubricant levels, e.g. lubricant level control dependent on temperature
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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
- F16H57/042—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
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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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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- 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
- F16H57/0457—Splash lubrication
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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
- F16H57/0495—Gearings with spur or bevel gears with fixed gear ratio
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 dentée de l'un des pignons du train d'engrenages 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 de l'entrée d'un conduit qui débouche dans 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 toothed part of one of the pinions of the gear train whose rotation causes part of the lubricant to be driven and to be ejected by centrifugation in the direction of a guide surface which directs the ejected lubricant in the direction of the entry of a conduit which opens into an additional upper temporary storage tank, the lubricant of which is gradually evacuated by gravity to water the areas to be lubricated from the gear train.
Ce document décrit ainsi un agencement qui peut être intégré à un mécanisme existant, tel que par exemple une boîte de vitesses de véhicule automobile, qui permet d'utiliser les projections d'huile dues à la rotation des pignons dans le bain d'huile principal agencé dans le fond du carter, et qui permet de fonctionner avec un niveau d'huile abaissé en diminuant ainsi les pertes dues au phénomène de barbotage des pignons et de redistribuer l'huile de lubrification vers des zones critiques du train d'engrenages. This document thus describes an arrangement which can be integrated into an existing mechanism, such as for example a motor vehicle gearbox, which makes it possible to use the oil projections due to the rotation of the pinions in the main oil bath. arranged in the bottom of the casing, and which makes it possible to operate with a lowered oil level thereby reducing the losses due to the bubbling phenomenon of the pinions and of redistributing the lubricating oil towards critical zones of the gear train.
Selon l'agencement proposé dans ce document, il est prévu à l'intérieur du carter de la boîte de vitesses, à la partie supérieure de ce dernier, de disposer un composant rapporté en tôle de forme particulièrement complexe dans la mesure où il intègre d'une part le réservoir additionnel de lubrifiant, des surfaces de guidage du lubrifiant projeté par centrifugation et les conduits reliant les surfaces de guidage au réservoir additionnel. According to the arrangement proposed in this document, it is provided inside the gearbox casing, at the top of the latter, to have a sheet metal component of particularly complex shape insofar as it integrates d on the one hand the additional lubricant reservoir, the guide surfaces of the lubricant sprayed by centrifugation and the conduits connecting the guide surfaces to the additional reservoir.
Outre la complexité de la pièce en tôle à réaliser, il est nécessaire de modifier de manière importante la conception du carter pour pouvoir réaliser la mise en place de la pièce en tôle. In addition to the complexity of the sheet metal part to be produced, it is necessary to significantly modify the design of the casing in order to be able to carry out the positioning of the sheet metal part.
Enfin, le réservoir additionnel est situé à l'intérieur du carter de la boîte de vitesses, c'est-à-dire qu'il n'est pas possible d'obtenir un refroidissement du lubrifiant pendant sa période de stockage provisoire dans le réservoir intermédiaire. Finally, the additional tank is located inside the gearbox casing, i.e. it is not possible to obtain cooling of the lubricant during its period of temporary storage in the tank. intermediate.
L'invention a pour objet de proposer une nouvelle conception d'un agencement du type mentionné précédemment qui remédie aux inconvénients qui viennent d'être évoqués. The object of the invention is to propose a new design of an arrangement of the type mentioned above which overcomes the drawbacks which have just been mentioned.
Dans ce but, I'invention propose un agencement pour la lubrification d'un train d'engrenages, caractérisé en ce que le conduit est un tuyau qui traverse de manière étanche la paroi supérieure du carter et qui débouche dans un réservoir additionnel agencé à l'extérieur du carter au-dessus de sa paroi supérieure, et en ce que la paroi supérieure du carter comporte une série de trous pour l'évacuation du lubrifiant stocké dans le réservoir additionnel. For this purpose, the invention provides an arrangement for the lubrication of a gear train, characterized in that the conduit is a pipe which passes in leaktight manner through the upper wall of the casing and which opens into an additional reservoir arranged at the exterior of the casing above its upper wall, and in that the upper wall of the casing has a series of holes for the discharge of the lubricant stored in the additional reservoir.
Selon d'autres caractéristiques de l'invention
- la surface de guidage du lubrifiant éjecté est une portion de la surface interne de la paroi supérieure du carter
- le tronçon d'extrémité du tuyau de guidage qui traverse de manière étanche la paroi du carter est orienté selon une direction rectiligne sensiblement tangente à la surface de guidage et qui forme un angle supérieur à 90" par rapport au rayon du pignon éjecteur qui passe par le centre de ladite extrémité du tuyau de guidage
- le réservoir additionnel comporte des ailettes de refroidissement
- le réservoir additionnel est un réservoir sans fond délimité par une paroi supérieure et par une paroi latérale dont le bord inférieur est fixé de manière étanche sur la face externe de la paroi supérieure du carter et entoure la série de trous d'évacuation
- I'un au moins des trous d'évacuation est situé le long d'une zone à lubrifier du train d'engrenages
- I'un au moins des trous d'évacuation se prolonge par un tube de guidage du lubrifiant en direction d'une zone à lubrifier du train d'engrenages
- le tuyau de guidage débouche dans le réservoir additionnel à la partie supérieure de ce dernier qui est munie d'un dispositif de mise à l'air libre
- le carter comporte un dispositif propre de mise à l'air libre et la partie supérieure du réservoir additionnel est reliée à la partie supérieure de l'espace interne du carter, en amont du niveau de lubrifiant au repos, par un tuyau de mise à l'air libre du réservoir additionnel.According to other features of the invention
- the guide surface of the ejected lubricant is a portion of the internal surface of the upper wall of the casing
- the end section of the guide pipe which sealingly crosses the wall of the casing is oriented in a rectilinear direction substantially tangent to the guide surface and which forms an angle greater than 90 "relative to the radius of the ejector pinion which passes through the center of said end of the guide pipe
- the additional tank has cooling fins
the additional tank is a bottomless tank delimited by an upper wall and by a side wall, the lower edge of which is tightly fixed on the external face of the upper wall of the casing and surrounds the series of drainage holes
- at least one of the discharge holes is located along an area to be lubricated of the gear train
- at least one of the drainage holes is extended by a lubricant guide tube towards a zone to be lubricated of the gear train
- the guide pipe opens into the additional tank at the top of the latter which is provided with a venting device
- the crankcase has its own venting device and the upper part of the additional tank is connected to the upper part of the internal space of the crankcase, upstream of the lubricant level at rest, by a setting pipe the air in the additional tank.
L'invention propose également une boîte de vitesses de véhicule automobile, caractérisée en ce qu'elle comporte un agencement pour la lubrification de ses pignons réalisé conformément aux enseignements de l'invention. The invention also provides a motor vehicle gearbox, characterized in that it includes an arrangement for the lubrication of its pinions produced in accordance with the teachings of the invention.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels
- la figure 1 est une vue schématique en section, par un plan perpendiculaire aux axes des engrenages et selon la ligne 1-1 de la figure 2, qui illustre un exemple de réalisation d'une boîte de vitesses de véhicule automobile équipée d'un agencement de lubrification complémentaire conforme aux enseignements de l'invention; ; et
- la figure 2 est une vue de dessus de la figure 1.Other characteristics and advantages of the invention will appear on reading the following detailed description for the understanding of which reference will be made to the accompanying drawings in which
- Figure 1 is a schematic sectional view, through a plane perpendicular to the axes of the gears and along line 1-1 of Figure 2, which illustrates an embodiment of a motor vehicle gearbox equipped with a additional lubrication arrangement in accordance with the teachings of the invention; ; and
- Figure 2 is a top view of Figure 1.
On a représenté sur les figures une boîte de vitesses 10 constituée pour l'essentiel par un carter principal 12 qui est une pièce de fonderie. There is shown in the figures a gearbox 10 consisting essentially of a main casing 12 which is a foundry piece.
Le carter 12 délimite ainsi de manière étanche un espace interne 14 à l'intérieur duquel est agencé un train d'engrenages d'axes horizontaux et parallèles Al, A2 et A3 qui comportent notamment une couronne de différentiel 16, un arbre secondaire 18 et un arbre primaire 20. The casing 12 thus sealingly delimits an internal space 14 inside which is arranged a gear train of horizontal and parallel axes A1, A2 and A3 which in particular comprise a differential crown 16, a secondary shaft 18 and a primary tree 20.
Selon une conception connue, le carter étanche 12 constitue un carter humide pour la lubrification des différents pignons et engrenages et il contient à cet effet un bain d'huile 22 dans la partie inférieure 24 du carter 12. According to a known design, the sealed casing 12 constitutes a wet casing for the lubrication of the various pinions and gears and for this purpose it contains an oil bath 22 in the lower part 24 of the casing 12.
Le niveau N de l'huile dans le carter 12 représenté sur la figure 1 correspond au niveau "dynamique", c'est-à-dire au niveau réel lorsque les pignons sont en rotation. The level N of the oil in the casing 12 shown in FIG. 1 corresponds to the "dynamic" level, that is to say to the actual level when the pinions are in rotation.
On a également fait figurer en traits mixtes le niveau N' qu'occupe l'huile lorsque la transmission ne tourne pas. The level N 'occupied by the oil when the transmission does not rotate has also been shown in dashed lines.
Comme on peut le constater sur la figure 1, le niveau N' est choisi de manière que la couronne de différentiel 16 et la partie inférieure de l'arbre secondaire denté 18 trempe dans l'huile 22. As can be seen in FIG. 1, the level N ′ is chosen so that the differential ring 16 and the lower part of the toothed secondary shaft 18 soak in the oil 22.
Lorsque les pignons tournent, le niveau d'huile N baisse car le lubrifiant est entraîné en rotation par les pignons et notamment par la couronne de différentiel 16 qui est celle de plus grand diamètre mais dont la partie inférieure 161 trempe toujours en permanence dans l'huile 22. When the pinions rotate, the oil level N drops because the lubricant is driven in rotation by the pinions and in particular by the differential ring 16 which is the one with the largest diameter but the lower part 161 of which always dips permanently in the oil 22.
En rotation, la couronne 16 entraîne ainsi de l'huile par l'intermédiaire de ses dents qui, par effet de centrifugation, est projetée radialement vers l'extérieur en direction d'une portion de surface 26 formée en vis-à-vis sur la surface interne de la partie latérale 28 du carter 12. In rotation, the crown 16 thus drives oil through its teeth which, by centrifugation effect, is projected radially outwards in the direction of a surface portion 26 formed vis-à-vis on the internal surface of the lateral part 28 of the casing 12.
Comme on peut le voir sur la figure 1, la portion de surface de guidage 26 est une portion sensiblement cylindrique et coaxiale à l'axe de rotation Al de la couronne de différentiel 16. As can be seen in FIG. 1, the guide surface portion 26 is a substantially cylindrical portion and coaxial with the axis of rotation A1 of the differential crown 16.
L'huile projetée contre la surface de guidage 26 I'est avec suffisamment d'énergie pour qu'elle remonte le long de la portion de surface de guidage 26 en direction d'une ouverture 30 ménagée dans la paroi supérieure sensiblement horizontale du carter 12. The oil sprayed against the guide surface 26 I is with sufficient energy for it to rise along the guide surface portion 26 in the direction of an opening 30 formed in the substantially horizontal upper wall of the casing 12 .
L'ouverture 30 correspond à l'intersection d'un trou débouchant 34 avec la surface interne de la paroi supérieure 32 qui reçoit, de manière fixe et étanche, le tronçon d'extrémité 36 appartenant à un tuyau 38 de guidage du lubrifiant projeté par la couronne dentée 16. The opening 30 corresponds to the intersection of a through hole 34 with the internal surface of the upper wall 32 which receives, in a fixed and sealed manner, the end section 36 belonging to a pipe 38 for guiding the lubricant sprayed by the ring gear 16.
Comme on peut le voir sur les figures, le tuyau de guidage 38 se prolonge à l'extérieur du carter 12 au-dessus de ce dernier et son extrémité libre 40 débouche verticalement à la partie supérieure d'un réservoir additionnel de lubrifiant 42. As can be seen in the figures, the guide pipe 38 extends outside the casing 12 above the latter and its free end 40 opens vertically at the top of an additional reservoir of lubricant 42.
Le réservoir 42 est un réservoir sans fond et il est constitué essentiellement par une paroi supérieure 44 et par une paroi latérale 46 de contour rectangulaire dont le bord inférieur 48 est fixé de manière étanche sur la face externe 50 de la paroi supérieure 32 du carter 12. The tank 42 is a bottomless tank and it consists essentially of an upper wall 44 and a side wall 46 of rectangular outline, the lower edge 48 of which is tightly fixed to the external face 50 of the upper wall 32 of the casing 12 .
La fixation étanche est assurée, selon un agencement connu, par une bride 52 et par un joint périphérique d'étanchéité 54, la fixation étant assurée par des vis 56. The tight fixing is ensured, according to a known arrangement, by a flange 52 and by a peripheral sealing gasket 54, the fixing being ensured by screws 56.
Afin d'assurer un bon refroidissement du lubrifiant stocké dans le réservoir intermédiaire 42, la paroi latérale 46 de ce dernier est munie d'une série d'ailettes de refroidissement 58. In order to ensure good cooling of the lubricant stored in the intermediate reservoir 42, the side wall 46 of the latter is provided with a series of cooling fins 58.
Le réservoir additionnel supérieur 42 est fixé sur une portion de la paroi supérieure 32 du carter 12 qui comporte une série de trous débouchants 60 qui relient le réservoir additionnel 42 à la cavité interne 14 du carter 12. The upper additional tank 42 is fixed to a portion of the upper wall 32 of the casing 12 which has a series of through holes 60 which connect the additional tank 42 to the internal cavity 14 of the casing 12.
Comme on peut le voir sur la figure 1, les trous 60 sont situés à l'aplomb vertical de zones particulières du train d'engrenages 16, 18, 14 que l'on désire lubrifier avec efficacité. As can be seen in Figure 1, the holes 60 are located vertically above particular areas of the gear train 16, 18, 14 which it is desired to lubricate effectively.
Comme cela est illustré à la partie droite de la figure 1, on peut prolonger certains des trous débouchants 60 par des tubes 62 de guidage qui orientent le lubrifiant contenu dans le réservoir 42, qui s'échappe par gravité par les trous 60, en direction de zones particulières du train d'engrenages qui ne sont pas situées à l'aplomb de trous correspondants 60. As illustrated in the right part of FIG. 1, one can extend some of the through holes 60 by guide tubes 62 which orient the lubricant contained in the reservoir 42, which escapes by gravity through the holes 60, in the direction particular areas of the gear train which are not located directly above corresponding holes 60.
Comme cela a été évoqué précédemment, l'alimentation du réservoir 42 est effectuée par le tuyau de guidage 38 à l'intérieur duquel le lubrifiant projeté par la couronne dentée 16 sur la surface de guidage 26 remonte, le tronçon d'extrémité 36 du tuyau de guidage 38 étant orienté à cet effet selon une direction D sensiblement parallèle à la tangente à la portion de surface de guidage 26 et qui forme avec le rayon R de la couronne dentée 16 passant par le centre C de l'ouverture 30 un angle obtus a supérieur à 90" et qui est de préférence compris entre 95" et 135". As mentioned above, the supply of the reservoir 42 is carried out by the guide pipe 38 inside which the lubricant sprayed by the ring gear 16 on the guide surface 26 rises, the end section 36 of the pipe guide 38 being oriented for this purpose in a direction D substantially parallel to the tangent to the guide surface portion 26 and which forms with the radius R of the ring gear 16 passing through the center C of the opening 30 an obtuse angle a greater than 90 "and which is preferably between 95" and 135 ".
Afin d'assurer un bon écoulement par gravité du lubrifiant contenu dans le réservoir intermédiaire 42, ce dernier comporte un dispositif de mise à l'air libre qui est constitué par un tuyau de mise à l'air libre 64 dont une extrémité 66 est reliée à la partie supérieure du réservoir additionnel 42 et qui débouche par son extrémité inférieure 68 à travers la paroi supérieure 32 dans la cavité interne 14 du carter 12 au-dessus du niveau maximal de lubrifiant N' au repos, le carter 12 possédant son dispositif propre de mise à l'air libre (non représenté). In order to ensure good flow by gravity of the lubricant contained in the intermediate tank 42, the latter comprises a venting device which is constituted by a venting pipe 64, one end of which 66 is connected at the upper part of the additional reservoir 42 and which opens at its lower end 68 through the upper wall 32 in the internal cavity 14 of the casing 12 above the maximum level of lubricant N 'at rest, the casing 12 having its own device venting (not shown).
L'agencement complémentaire pour la lubrification du train d'engrenages conforme aux enseignements et illustré sur les figures est donc particulièrement simple à réaliser dans la mesure où tous les composants additionnels par rapport à un carter classique de boîte de vitesses, sont agencés à l'extérieur de la boîte de vitesses et il ne nécessite que de réaliser différents perçages dans la paroi supérieure 32 sans modifier le carter de conception classique 12 de la boîte de vitesses 10. The complementary arrangement for the lubrication of the gear train in accordance with the teachings and illustrated in the figures is therefore particularly simple to carry out insofar as all the additional components with respect to a conventional gearbox casing are arranged in the outside of the gearbox and it only requires making various holes in the upper wall 32 without modifying the casing of conventional design 12 of the gearbox 10.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9601489A FR2744508B1 (en) | 1996-02-07 | 1996-02-07 | ARRANGEMENT FOR THE LUBRICATION OF A GEAR TRAIN AND MOTOR VEHICLE GEARBOX COMPRISING SUCH AN ARRANGEMENT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9601489A FR2744508B1 (en) | 1996-02-07 | 1996-02-07 | ARRANGEMENT FOR THE LUBRICATION OF A GEAR TRAIN AND MOTOR VEHICLE GEARBOX COMPRISING SUCH AN ARRANGEMENT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2744508A1 true FR2744508A1 (en) | 1997-08-08 |
| FR2744508B1 FR2744508B1 (en) | 1998-04-10 |
Family
ID=9488939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9601489A Expired - Fee Related FR2744508B1 (en) | 1996-02-07 | 1996-02-07 | ARRANGEMENT FOR THE LUBRICATION OF A GEAR TRAIN AND MOTOR VEHICLE GEARBOX COMPRISING SUCH AN ARRANGEMENT |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2744508B1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1429068A2 (en) * | 2002-12-13 | 2004-06-16 | Tecnoingranaggi Riduttori S.r.l. | Lubrication system for reduction unit, in particular epicycloidal speed reducer |
| 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 |
| DE102006045238A1 (en) * | 2006-09-26 | 2008-04-03 | Zf Friedrichshafen Ag | Gearbox cogwheel lubrication, with an oil sump, directs oil spun by the immersed cogwheel to other cogwheels over the sump |
| DE102006045240A1 (en) * | 2006-09-26 | 2008-04-03 | Zf Friedrichshafen Ag | A method of level control of an oil sump portion of an oil sump having at least two oil sump portions |
| DE102007020453A1 (en) * | 2007-04-27 | 2008-11-06 | Sew-Eurodrive Gmbh & Co. Kg | Gearbox, has pipe system for lubricating oil provided in interior of housing, and chamber provided in housing wall, where three pipes for lubricating oil opens out into chamber which is formed with recess |
| US7753173B2 (en) | 2004-07-26 | 2010-07-13 | Magna Drivetrain Ag & Co Kg | Power divider for motor vehicles and lubrication thereof |
| DE102006022573B4 (en) * | 2005-05-20 | 2011-02-03 | GM Global Technology Operations, Inc., Detroit | Vehicle gearbox with an additional lubrication system |
| DE102009052595A1 (en) * | 2009-11-10 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Lubricating system for a vehicle transmission |
| US20150090469A1 (en) * | 2014-12-09 | 2015-04-02 | Hydraulic Power Systems, Inc. | Vibratory Hammer with Passive Lubrication System for Bearings |
| DE102015219431A1 (en) * | 2015-10-07 | 2017-04-13 | Zf Friedrichshafen Ag | Lubricating device for gearbox |
| US20170204962A1 (en) * | 2016-01-18 | 2017-07-20 | Deere & Company | Transmission cooling arrangement with overhead spray |
| DE102009057458B4 (en) * | 2008-12-08 | 2018-05-09 | American Axle & Mfg.,Inc. | Drive axle assembly with lubrication systems for lubricating gears and / or differential bearings |
| RU2684987C2 (en) * | 2014-11-27 | 2019-04-16 | Аити Машин Индастри Ко., Лтд. | Oil chute and transmission (embodiments) containing oil chute |
| WO2019112584A1 (en) | 2017-12-07 | 2019-06-13 | Gkn Automotive Limited | Driveline unit with internal lubrication system |
| DE102019206283A1 (en) * | 2019-05-02 | 2020-11-05 | Psa Automobiles Sa | Motor vehicle manual transmission |
| US20220324256A1 (en) * | 2021-04-12 | 2022-10-13 | J. C. Bamford Excavators Limited | Axle Assembly |
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| US3529698A (en) * | 1967-05-05 | 1970-09-22 | Gen Electric | Self-operating lubrication system for gear drive units |
| US4126058A (en) * | 1977-07-18 | 1978-11-21 | Caterpillar Tractor Co. | Fluid flow divider |
| US5316106A (en) * | 1993-05-07 | 1994-05-31 | Ford Motor Company | Lubricant cooling system for a motor vehicle axle |
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1996
- 1996-02-07 FR FR9601489A patent/FR2744508B1/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3529698A (en) * | 1967-05-05 | 1970-09-22 | Gen Electric | Self-operating lubrication system for gear drive units |
| US4126058A (en) * | 1977-07-18 | 1978-11-21 | Caterpillar Tractor Co. | Fluid flow divider |
| US5316106A (en) * | 1993-05-07 | 1994-05-31 | Ford Motor Company | Lubricant cooling system for a motor vehicle axle |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1429068A3 (en) * | 2002-12-13 | 2005-08-17 | Tecnoingranaggi Riduttori S.r.l. | Lubrication system for reduction unit, in particular epicycloidal speed reducer |
| EP1429068A2 (en) * | 2002-12-13 | 2004-06-16 | Tecnoingranaggi Riduttori S.r.l. | Lubrication system for reduction unit, in particular epicycloidal speed reducer |
| EP1512891A3 (en) * | 2003-07-25 | 2010-03-17 | Renault s.a.s. | Supplementary tank for lubricant for gear box |
| 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 |
| US7753173B2 (en) | 2004-07-26 | 2010-07-13 | Magna Drivetrain Ag & Co Kg | Power divider for motor vehicles and lubrication thereof |
| DE102006022573B4 (en) * | 2005-05-20 | 2011-02-03 | GM Global Technology Operations, Inc., Detroit | Vehicle gearbox with an additional lubrication system |
| US8534425B2 (en) | 2006-09-26 | 2013-09-17 | Zf Friedrichshafen Ag | Method for regulating the level of a section of an oil tray comprising at least two sections |
| DE102006045240A1 (en) * | 2006-09-26 | 2008-04-03 | Zf Friedrichshafen Ag | A method of level control of an oil sump portion of an oil sump having at least two oil sump portions |
| DE102006045238A1 (en) * | 2006-09-26 | 2008-04-03 | Zf Friedrichshafen Ag | Gearbox cogwheel lubrication, with an oil sump, directs oil spun by the immersed cogwheel to other cogwheels over the sump |
| DE102007020453B4 (en) * | 2007-04-27 | 2012-05-16 | Sew-Eurodrive Gmbh & Co. Kg | Transmission, lubricant circulation system and transmission series |
| DE102007020453A1 (en) * | 2007-04-27 | 2008-11-06 | Sew-Eurodrive Gmbh & Co. Kg | Gearbox, has pipe system for lubricating oil provided in interior of housing, and chamber provided in housing wall, where three pipes for lubricating oil opens out into chamber which is formed with recess |
| DE102009057458B4 (en) * | 2008-12-08 | 2018-05-09 | American Axle & Mfg.,Inc. | Drive axle assembly with lubrication systems for lubricating gears and / or differential bearings |
| DE102009052595A1 (en) * | 2009-11-10 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Lubricating system for a vehicle transmission |
| GB2475374A (en) * | 2009-11-10 | 2011-05-18 | Gm Global Tech Operations Inc | Lubrication system in which lubricant is kept in a loop |
| RU2549596C2 (en) * | 2009-11-10 | 2015-04-27 | Джи Эм Глоубал Текнолоджи Оперейшнз, Инк. | Vehicle transmission lubrication system |
| RU2684987C2 (en) * | 2014-11-27 | 2019-04-16 | Аити Машин Индастри Ко., Лтд. | Oil chute and transmission (embodiments) containing oil chute |
| US20150090469A1 (en) * | 2014-12-09 | 2015-04-02 | Hydraulic Power Systems, Inc. | Vibratory Hammer with Passive Lubrication System for Bearings |
| DE102015219431A1 (en) * | 2015-10-07 | 2017-04-13 | Zf Friedrichshafen Ag | Lubricating device for gearbox |
| CN106979322A (en) * | 2016-01-18 | 2017-07-25 | 迪尔公司 | The speed changer cooling device of overhead injection |
| US20170204962A1 (en) * | 2016-01-18 | 2017-07-20 | Deere & Company | Transmission cooling arrangement with overhead spray |
| US10451172B2 (en) * | 2016-01-18 | 2019-10-22 | Deere & Company | Transmission cooling arrangement with overhead spray |
| WO2019112584A1 (en) | 2017-12-07 | 2019-06-13 | Gkn Automotive Limited | Driveline unit with internal lubrication system |
| EP3721117A4 (en) * | 2017-12-07 | 2021-07-14 | GKN Automotive Limited | Driveline unit with internal lubrication system |
| US11149839B2 (en) | 2017-12-07 | 2021-10-19 | Gkn Automotive Limited | Driveline unit with internal lubrication system |
| DE102019206283A1 (en) * | 2019-05-02 | 2020-11-05 | Psa Automobiles Sa | Motor vehicle manual transmission |
| US20220324256A1 (en) * | 2021-04-12 | 2022-10-13 | J. C. Bamford Excavators Limited | Axle Assembly |
| US11781638B2 (en) * | 2021-04-12 | 2023-10-10 | J. C. Bamford Excavators Limited | Axle assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2744508B1 (en) | 1998-04-10 |
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