FR2957129A1 - Hydrodynamic coupler i.e. axial flow turbine coupler, for automatic transmission of motor vehicle, has hub and closed ring casing that are connected to shaft by bearings and are sealed by rotary joints, where ring casing contains fluid - Google Patents

Hydrodynamic coupler i.e. axial flow turbine coupler, for automatic transmission of motor vehicle, has hub and closed ring casing that are connected to shaft by bearings and are sealed by rotary joints, where ring casing contains fluid Download PDF

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Publication number
FR2957129A1
FR2957129A1 FR1000885A FR1000885A FR2957129A1 FR 2957129 A1 FR2957129 A1 FR 2957129A1 FR 1000885 A FR1000885 A FR 1000885A FR 1000885 A FR1000885 A FR 1000885A FR 2957129 A1 FR2957129 A1 FR 2957129A1
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France
Prior art keywords
hub
ring casing
coupler
shaft
turbine
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FR1000885A
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French (fr)
Inventor
Roger Laumain
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Individual
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Individual
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Priority to FR1000885A priority Critical patent/FR2957129A1/en
Publication of FR2957129A1 publication Critical patent/FR2957129A1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D33/00Rotary fluid couplings or clutches of the hydrokinetic type
    • F16D33/18Details
    • F16D33/20Shape of wheels, blades, or channels with respect to function

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The coupler has a closed ring casing (1) containing fluid and rotatably connected with a shaft. A hub (2) and the closed ring casing are connected to another shaft by bearings (5), and are sealed by rotary joints (6). The closed ring casing carries a double turbine (3) that comprises two cylindrical parts (3-1, 3-2) whose tubular walls are connected by vanes. The hub carries another double turbine (4) that comprises parts similar to the cylindrical parts, where action of the parts of the latter double turbine is identical to that of the former double turbine.

Description

L'invention concerne un coupleur hydrodynamique utilisé dans les transmissions de mouvement circulaire et en particulier dans les transmissions des véhicules automobiles. The invention relates to a hydrodynamic coupler used in circular motion transmissions and in particular in the transmissions of motor vehicles.

Dans ces transmissions sont utilisés couramment des convertisseurs hydrodynamiques qui interviennent à la fois pour faciliter les changements de rapport en filtrant les irrégularités de couple et pour assurer avec un rendement acceptable une variation continue entre deux rapports. La recherche d'un rendement optimum conduit à verrouiller les convertisseurs par un embrayage en régime In these transmissions are commonly used hydrodynamic converters that intervene both to facilitate gear changes by filtering the irregularities of torque and to ensure with acceptable performance a continuous variation between two ratios. The search for optimum efficiency leads to locking the converters by a clutch in regime

permanent. Ce constat, ajouté au fait que, pour les mêmes raisons le nombre de rapports mécaniques va croissant rend moins nécessaire le recours aux caractéristiques des convertisseurs. L'invention a pour objet une réalisation plus simple exploitant l'interaction de 15 deux turbines dans un circuit de fluide fermé, sans roue de réaction. Les figures 1 et 2 de la planche 1/1 représentent un coupleur à circuit actif axial. 20 Les figures 3 et 4 de la planche 1/1 représentent un coupleur à circuit actif radial. Les figures 5 et 6 de la planche 1/1 représentent un coupleur intégrant un dispositif mécanique amplifiant la différence de vitesse des deux arbres pour 25 compenser le glissement ou accroître le couple transmis. Les figures 1 et 2 de la planche 1/1 représentent un coupleur à turbines axiales, constitué à l'extérieur d'un carter torique (1) réalisé en deux parties centrées et fixées ensemble, solidaires du premier arbre et à l'intérieur d'un moyeu tournant permanent. This observation, added to the fact that, for the same reasons, the number of mechanical ratios is increasing makes it less necessary to use the characteristics of the converters. The subject of the invention is a simpler embodiment exploiting the interaction of two turbines in a closed fluid circuit without a reaction wheel. Figures 1 and 2 of the plate 1/1 represent an axial active circuit coupler. Figures 3 and 4 of Plate 1/1 show a radial active circuit coupler. Figures 5 and 6 of the plate 1/1 show a coupler incorporating a mechanical device amplifying the speed difference of the two shafts to compensate for the slip or increase the torque transmitted. FIGS. 1 and 2 of the plate 1/1 represent an axial turbine coupling, constituted outside of an O-ring (1) made in two parts centered and fixed together, integral with the first shaft and inside the 'a rotating hub

30 (2) solidaire du deuxième arbre. 30 (2) integral with the second shaft.

Le carter (1) et le moyeu tournant (2) sont liés en rotation par deux paliers The housing (1) and the rotating hub (2) are connected in rotation by two bearings

tournants (5), le joint tournant (6) assurant l'étanchéité au fluide contenu dans (1). Le carter (1) porte la turbine double (3) qui comporte deux parties cylindriques 5 (3-1) et (3-2) dont les parois tubulaires sont reliées par des aubes inclinées sur l'axe turners (5), the rotary joint (6) sealing the fluid contained in (1). The casing (1) carries the double turbine (3) which comprises two cylindrical parts (3-1) and (3-2) whose tubular walls are connected by vanes inclined on the axis

principal, dans un sens dans (3-1), dans le sens opposé dans (3-2). Le moyeu tournant (2) porte une autre turbine (4) qui comporte deux parties (4.1) et (4.2) semblables respectivement à (3.1) et (3.2) dont l'action est identique à 10 celle de la turbine (3). L'intérieur du carter (1) et les parois tubulaires des deux turbines (3) et (4) délimitent un circuit fermé de section constante. 15 Les fonds du carter (1) constituent des zones de rebroussement dont la section offerte aux flux courbe est constante. La partie occupée par les turbines (3) et (4) constitue la zone active : le flux axial généré par la turbine motrice entraine l'autre et les rôles réciproques peuvent être inversés. 20 Les turbines (3.2) et 4.2) ou (3.1) et (4.1) sont optionnelles et la zone qu'elles occupent laissée libre pour le circuit de retour. Dans ce cas la capacité de couple transmis est divisée par deux. En se reportant aux figures 3 et 4 de la planche 1/1 on a représenté un principal, in a sense in (3-1), in the opposite direction in (3-2). The rotating hub (2) carries another turbine (4) which has two parts (4.1) and (4.2) similar respectively to (3.1) and (3.2) whose action is identical to that of the turbine (3). The interior of the casing (1) and the tubular walls of the two turbines (3) and (4) delimit a closed circuit of constant section. The crankcase bottoms (1) constitute cusp zones whose section offered to curved flows is constant. The part occupied by the turbines (3) and (4) constitutes the active zone: the axial flow generated by the driving turbine drives the other and the reciprocal roles can be reversed. The turbines (3.2) and 4.2) or (3.1) and (4.1) are optional and the area they occupy left free for the return circuit. In this case the transmitted torque capacity is divided by two. Referring to FIGS. 3 and 4 of plate 1/1, there is shown a

25 coupleur de même principe mais à circulation active radiale. Le carter torique (11) à section en forme de poire délimite le circuit fermé de section constante, le flasque (13) dépendant du carter torique (11) porte les turbines (13-1) et (13-2) symétriques l'une de l'autre mais à inclinaison d'aubes inversées, le flasque (14) dépendant du moyeu tournant (12) porte les turbines (14-1) et (14-2) symétriques l'une de l'autre et à Coupler of the same principle but with radial active circulation. The pear-shaped section housing (11) delimits the closed circuit of constant section, the flange (13) depending on the O-ring housing (11) carries the symmetrical turbines (13-1) and (13-2). on the other but with an inclination of inverted blades, the flange (14) depending on the rotating hub (12) carries the turbines (14-1) and (14-2) symmetrical to each other and to

30 inclinaison d'aubes inversées par rapport à celles en vis-à-vis. Inclination of blades reversed compared to those vis-à-vis.

Comme dans le cas des figures 1 et 2, les turbines (13.1) et (13.2) ou (14.1) et (14.2) sont optionnelles ce qui correspond à la figure 5. Les zones de rebroussement du carter (11) sont ajourées pour assurer la 5 continuité du circuit. Les figures 5 et 6 de la planche 1/1 représentent un coupleur intégrant un dispositif mécanique amplifiant la différence de vitesse entre les deux arbres et accroissant ainsi, pour un dimensionnement donné des turbines, le couple transmis. As in the case of Figures 1 and 2, the turbines (13.1) and (13.2) or (14.1) and (14.2) are optional which corresponds to Figure 5. The crush areas of the housing (11) are perforated to ensure the continuity of the circuit. Figures 5 and 6 of the plate 1/1 show a coupler incorporating a mechanical device amplifying the speed difference between the two shafts and thus increasing, for a given size of the turbines, the transmitted torque.

10 Ce dispositif permet en particulier de compenser un glissement non souhaité entre les deux arbres menant et mené. Le moyeu (22) comporte au moins un maneton (22-2) autour duquel tourne le pignon satellite (25) qui engrène, à l'extérieur avec la couronne planétaire (26) solidaire du carter (21) et à l'intérieur avec le pignon planétaire (27) qui dépend de la paroi (15) sur laquelle est la turbine (15-1). Du carter This device makes it possible in particular to compensate for an undesired slip between the two driving and driven shafts. The hub (22) comprises at least one crankpin (22-2) around which the planet gear (25) which meshes with the planet gear (26) integral with the crankcase (21) and internally with the sun gear (27) which depends on the wall (15) on which is the turbine (15-1). From the crankcase

15 (21) dépend la paroi (16) portant la turbine (16-1). On optimise l'efficience des turbines (15-1), en rendant, en chaque point d'une aube, l'angle de sa surface avec le plan passant par l'axe de rotation inversement proportionnel à son rayon, d'où une forme complexe. S'agissant des coupleurs à 15 (21) depends on the wall (16) carrying the turbine (16-1). The efficiency of the turbines (15-1) is optimized by making, at each point of a blade, the angle of its surface with the plane passing through the axis of rotation inversely proportional to its radius, hence a complex shape. With regard to couplers

20 turbine radiale, le profil des conduits dans la zone active doit être un hyperboloïde dont l'axe de rotation est une asymptote. Si les coupleurs ne doivent être sollicités que de façon intermittente, leur rendement est secondaire et la forme des aubes et des conduits peut être définie uniquement en fonction de considérations de fabrication. 20 radial turbine, the profile of the ducts in the active zone must be a hyperboloid whose axis of rotation is an asymptote. If the couplers only need to be intermittently solicited, their performance is secondary and the shape of the blades and ducts can be defined solely on the basis of manufacturing considerations.

25 30 4 25 30 4

Claims (1)

Revendications1: Coupleur hydrodynamique constitué principalement d'un carter torique (1) fermé, contenant un fluide lié en rotation avec un premier arbre et d'un moyeu (2) lié au deuxième arbre caractérisé en ce que (1) et (2) sont liés par des paliers (5) et l'étanchéité obtenue au moyen des joints tournant (6). Revendication 2: Coupleur hydrodynamique selon la revendication 1 caractérisé en ce que le carter (1) porte la turbine double (3) qui comporte deux parties cylindriques (3-1) et (3-2) dont les parois tubulaires sont reliées au moyen d'aubes inclinées sur l'axe principal, dans un sens pour (3.1) et dans le sens opposé pour (3.2). Revendication 3 : Coupleur hydrodynamique selon les revendications 1 et 2 caractérisé en ce que le moyeu (2) porte la turbine double (4) qui comporte de parties (4.1) et (4.2) semblables respectivement à (3.1) et (3.2) dont l'action est identique à celle de la turbine (3). Revendication 4: Coupleur hydrodynamique selon la revendication 1 caractérisé en ce que le carter torique (1) à section en forme de poire porte des turbines symétriques (13.1) et (13.2) et le moyeu tournant (12) porte les turbines symétriques du même carter (14.1) et (14.2). Revendication 5 : Coupleur hydrodynamique selon les revendications 1 à 4 caractérisé en ce que le moyeu (22) comporte au moins un maneton (22.2) autour duquel tourne le pignon satellite (25) qui engrène à l'extérieur avec la couronne planétaire (26) solidaire du carter (21) et à l'intérieur avec le pignon planétaire (27) solidaire de la turbine (16.1). Claims1: Hydrodynamic coupler consisting mainly of a closed casing (1), containing a fluid connected in rotation with a first shaft and a hub (2) connected to the second shaft, characterized in that (1) and (2) are linked by bearings (5) and the seal obtained by means of rotary joints (6). Claim 2: Hydrodynamic coupler according to Claim 1, characterized in that the casing (1) carries the double turbine (3) which comprises two cylindrical portions (3-1) and (3-2), the tubular walls of which are connected by means of blades inclined on the main axis in one direction for (3.1) and in the opposite direction for (3.2). Claim 3: Hydrodynamic coupler according to Claims 1 and 2, characterized in that the hub (2) carries the twin turbine (4) which comprises parts (4.1) and (4.2) similar to (3.1) and (3.2), respectively, of which action is identical to that of the turbine (3). Claim 4: Hydrodynamic coupler according to Claim 1, characterized in that the O-ring-shaped housing (1) carries symmetrical turbines (13.1) and (13.2) and the rotating hub (12) carries the symmetrical turbines of the same housing. (14.1) and (14.2). Claim 5: Hydrodynamic coupler according to Claims 1 to 4, characterized in that the hub (22) has at least one crankpin (22.2) around which the planet gear (25) which meshes with the planet gear (26) secured to the housing (21) and inside with the sun gear (27) integral with the turbine (16.1).
FR1000885A 2010-03-04 2010-03-04 Hydrodynamic coupler i.e. axial flow turbine coupler, for automatic transmission of motor vehicle, has hub and closed ring casing that are connected to shaft by bearings and are sealed by rotary joints, where ring casing contains fluid Withdrawn FR2957129A1 (en)

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FR1000885A FR2957129A1 (en) 2010-03-04 2010-03-04 Hydrodynamic coupler i.e. axial flow turbine coupler, for automatic transmission of motor vehicle, has hub and closed ring casing that are connected to shaft by bearings and are sealed by rotary joints, where ring casing contains fluid

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FR1000885A FR2957129A1 (en) 2010-03-04 2010-03-04 Hydrodynamic coupler i.e. axial flow turbine coupler, for automatic transmission of motor vehicle, has hub and closed ring casing that are connected to shaft by bearings and are sealed by rotary joints, where ring casing contains fluid

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FR1000885A Withdrawn FR2957129A1 (en) 2010-03-04 2010-03-04 Hydrodynamic coupler i.e. axial flow turbine coupler, for automatic transmission of motor vehicle, has hub and closed ring casing that are connected to shaft by bearings and are sealed by rotary joints, where ring casing contains fluid

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019241543A1 (en) * 2018-06-13 2019-12-19 Exedy Globalparts Corporation Hydrodynamic launch device with anti-expansion feature

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB310377A (en) * 1928-04-24 1930-07-10 Hans Grade Improvements in or relating to liquid gears
GB1540356A (en) * 1977-12-01 1979-02-14 Shiang Yu Lee Hydromechanical transmission
US4633736A (en) * 1982-12-06 1987-01-06 Aisin-Warner Kabushiki Kaisha Vehicular continuously variable transmission
EP0833079A2 (en) * 1996-09-26 1998-04-01 Haidar Mohammed Haidar Transmission assembly
DE102007032212A1 (en) * 2007-07-11 2009-01-15 Voith Patent Gmbh Hydrodynamic coupling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB310377A (en) * 1928-04-24 1930-07-10 Hans Grade Improvements in or relating to liquid gears
GB1540356A (en) * 1977-12-01 1979-02-14 Shiang Yu Lee Hydromechanical transmission
US4633736A (en) * 1982-12-06 1987-01-06 Aisin-Warner Kabushiki Kaisha Vehicular continuously variable transmission
EP0833079A2 (en) * 1996-09-26 1998-04-01 Haidar Mohammed Haidar Transmission assembly
DE102007032212A1 (en) * 2007-07-11 2009-01-15 Voith Patent Gmbh Hydrodynamic coupling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Hydrodynamische Leistungsuebertragung", VDI-HANDBUCH GETRIEBETECHNIK II,, vol. VDI 2153, 1 April 1994 (1994-04-01), pages 1 - 44, XP007911738 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019241543A1 (en) * 2018-06-13 2019-12-19 Exedy Globalparts Corporation Hydrodynamic launch device with anti-expansion feature

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