FR2890033A1 - Clutch housing sealing device for use in road vehicle, has obturator adapting shape of crankcase for sealing orifices susceptible to be affected by water, by rolling in inundated zones during crossing of water body - Google Patents

Clutch housing sealing device for use in road vehicle, has obturator adapting shape of crankcase for sealing orifices susceptible to be affected by water, by rolling in inundated zones during crossing of water body Download PDF

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Publication number
FR2890033A1
FR2890033A1 FR0552551A FR0552551A FR2890033A1 FR 2890033 A1 FR2890033 A1 FR 2890033A1 FR 0552551 A FR0552551 A FR 0552551A FR 0552551 A FR0552551 A FR 0552551A FR 2890033 A1 FR2890033 A1 FR 2890033A1
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FR
France
Prior art keywords
water
clutch housing
obturator
sealing device
inundated
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Granted
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FR0552551A
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French (fr)
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FR2890033B1 (en
Inventor
Gerard Dubos
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Renault SAS
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Renault SAS
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Priority to FR0552551A priority Critical patent/FR2890033B1/en
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Publication of FR2890033B1 publication Critical patent/FR2890033B1/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/006—Assembling or mounting of starting devices
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The device has an obturator (7) adapting the shape of a crankcase (6) for sealing orifices susceptible to be affected by water, by rolling in an inundated zones during crossing a body of water. The obturator is formed as a stamping to be fixed by a clamping bolt (8) traversing holes provided in the obturator and is intercalated between a starter (3) and a clutch housing using the clamping bolt.

Description

DISPOSITIF D'ETANCHEITE DE CARTER D'EMBRAYAGECLUTCH CASE SEALING DEVICE

La présente invention concerne l'étanchéité à l'eau, de l'accouplement entre le moteur et le carter d'embrayage d'un véhicule automobile, dans la zone 5 du démarreur.  The present invention relates to the watertightness of the coupling between the engine and the clutch housing of a motor vehicle in zone 5 of the starter.

Plus précisément, elle concerne un dispositif d'étanchéité aux projections d'eau d'un carter d'embrayage de véhicule routier sur sa face d'acouplement au carter cylindre du moteur.  More specifically, it relates to a splash water sealing device of a road vehicle clutch housing on its coupling face to the engine cylinder block.

Lorsque le carter d'embrayage n'est pas étanche, l'intrusion d'eau à l'intérieur de celui-ci, devient un problème crucial dans certaines conditions d'utilisation particulièrement sévères du véhicule, telles que le passage de gués. En effet l'intrusion d'eau dans le carter d'embrayage, notamment au niveau de la zone d'accouplement du moteur du carter d'embrayage et du démarreur, peut provoquer le grippage des ressorts d'embrayage.  When the clutch housing is not waterproof, the intrusion of water inside it, becomes a crucial problem in some particularly severe conditions of use of the vehicle, such as the crossing of fords. Indeed the intrusion of water into the clutch housing, especially at the coupling zone of the clutch housing motor and the starter, can cause seizing of the clutch springs.

Par la publication FR 2 833 329, on connaît un système d'embrayage intégré dans un compartiment fermé à bain d'huile permettant d'optimiser sa capacité d'échange thermique. Dans le cas d'un embrayage sec, où la fermeture complète du carter n'est pas envisageable, il a déjà été proposé d'intercaler une tôle d'acier de faible épaisseur entre la face d'accouplement moteur et le carter d'embrayage. Cette solution présente l'inconvénient de décaler axialement la boîte de vitesses par rapport au moteur, et donc, d'augmenter la longueur totale du groupe motopropulseur.  By the publication FR 2 833 329, there is known a clutch system integrated in a closed compartment with an oil bath to optimize its heat exchange capacity. In the case of a dry clutch, where the complete closure of the housing is not possible, it has already been proposed to insert a thin steel sheet between the engine coupling face and the clutch housing . This solution has the disadvantage of axially shifting the gearbox relative to the engine, and therefore, to increase the total length of the powertrain.

La présente invention vise à assurer l'étanchéité à l'eau d'un carter d'embrayage, sans décaler la boîte de vitesses par rapport au moteur, ni 25 modifier les pièces environnantes.  The present invention aims to ensure the watertightness of a clutch housing, without shifting the gearbox relative to the engine, nor to modify the surrounding parts.

2890033 2 Dans ce but, elle propose de placer un dispositif d'étanchéité épousant la forme du carter cylindre pour obturer des orifices du carter d'embrayage susceptibles d'être atteints par l'eau, en roulage dans des zones particulièrement inondées, de manière à limiter les intrusions d'eau dans celui-ci.  2890033 2 To this end, it proposes to place a sealing device matching the shape of the cylinder block to close clutch housing orifices likely to be reached by water, while driving in particularly flooded areas, so as to to limit the intrusions of water into it.

Conformément à l'invention, cet obturateur est intercalé entre le carter d'embrayage, et le démarreur du moteur.  According to the invention, this shutter is interposed between the clutch housing and the engine starter.

De préférence, il est fixé sur le carter d'embrayage par les mêmes vis de fixation que le démarreur.  Preferably, it is fixed on the clutch housing by the same fastening screws as the starter.

L'invention sera mieux comprise à la lecture de la description suivante d'un mode de réalisation non limitatif de celle-ci, en se reportant aux dessins annexés, sur lesquels: - la figure 1 met en évidence l'emplacement des zones à protéger, - la figure 2 est une vue latérale du bloc moteur, avec le dispositif proposé, et - la figure 3 indique ses moyens de fixation.  The invention will be better understood on reading the following description of a non-limiting embodiment thereof, with reference to the appended drawings, in which: FIG. 1 highlights the location of the zones to be protected; - Figure 2 is a side view of the engine block, with the proposed device, and - Figure 3 indicates its attachment means.

Sur la figure 1, on a représenté un bloc moteur 1 de véhicule automobile sur lequel est fixé un carter d'embrayage 2. La figure montre l'emplacement du démarreur 3, et indique l'emplacement de zones 4 ouvertes vers l'intérieur du carter d'embrayage, pouvant laisser entrer de l'eau en roulage dans des secteurs fortement inondés, notamment lors du passage de gués.  In Figure 1, there is shown a motor unit 1 of a motor vehicle on which is fixed a clutch housing 2. The figure shows the location of the starter 3, and indicates the location of zones 4 open towards the inside of the vehicle. clutch housing, which can allow water to enter when driving in heavily flooded areas, especially when crossing fords.

La figure 2 montre la face d'accouplement du carter cylindre 6 sur le carter d'embrayage. Sur cette figure, on voit notamment le démarreur 3, le carter moteur 6, l'obturateur métallique 7 objet de l'invention, et les vis de fixation 8 du démarreur.  Figure 2 shows the coupling face of the cylinder block 6 on the clutch housing. In this figure, we see in particular the starter 3, the motor housing 6, the metal shutter 7 object of the invention, and the fastening screws 8 of the starter.

En se reportant à la figure 3, on distingue à l'intérieur du carter d'embrayage 2, l'ensemble volant moteur et embrayage 5. Au montage, le 2890033 -3- dispositif 7 est inséré entre le bloc moteur 1 et le carter d'embrayage 2, pour obturer notamment les zones 4 identifiées sur la figure 1.  Referring to Figure 3, there is a distinction within the clutch housing 2, the flywheel assembly and clutch 5. At mounting, the 2890033 -3- device 7 is inserted between the engine block 1 and the housing clutch 2, in particular to close the zones 4 identified in FIG.

L'obturateur 7 est par exemple une tôle emboutie de faible épaisseur. 5a forme et sa disposition permettent de limiter les intrusions d'eau par projection dans le carter d'embrayage. Elle épouse la forme du carter cylindre 6, en obturant des orifices susceptibles d'être atteints par l'eau, en roulage dans des zones particulièrement inondées, par exemple lors du passage de gués. Ainsi, le dispositif proposé n'est pas destiné à assurer une étanchéité complète du carter d'embrayage, mais seulement à limiter les intrusions d'eau dans celui- ci.  The shutter 7 is for example a pressed sheet thin. 5a form and its arrangement can limit water intrusions by projection into the clutch housing. It matches the shape of the cylinder block 6, by sealing orifices that can be reached by water, while driving in particularly flooded areas, for example when crossing fords. Thus, the proposed device is not intended to ensure complete sealing of the clutch housing, but only to limit water intrusions into it.

Conformément à l'invention, la fixation de l'obturateur 7 est assurée par les vis de fixation 8 du démarreur 3. L'obturateur 7 présente à cet effet des trous 9, traversés au montage par les vis 8. Il est intercalé, non pas entre le bloc moteur 1 et le carter d'embrayage 2, mais entre le démarreur 3, et le carter d'embrayage 2, en utilisant les vis de fixation 8 du démarreur sur celui-ci. La fixation du dispositif est donc indépendante du carter cylindres, si bien qu'il ne décale pas axialement le carter d'embrayage et la boîte de vitesses, par rapport au carter cylindre.  According to the invention, the fixing of the shutter 7 is ensured by the fixing screws 8 of the starter 3. The shutter 7 has for this purpose holes 9, traversed to the mounting by the screws 8. It is interposed, no not between the engine block 1 and the clutch housing 2, but between the starter 3, and the clutch housing 2, using the fastening screws 8 of the starter thereon. Fixing the device is therefore independent of the cylinder block, so that it does not shift axially the clutch housing and the gearbox, relative to the cylinder block.

2890033 -4-2890033 -4-

Claims (5)

REVENDICATIONS 1. Dispositif d'étanchéité aux projections d'eau d'un carter d'embrayage (2) de véhicule routier sur sa face d'accouplement au carter cylindre (6) du moteur (1), caractérisé en ce qu'il est constitué d'un obturateur (7) épousant la forme du carter cylindre (6) en obturant des orifices (4) du carter d'embrayage (2), susceptibles d'être atteints par l'eau, en roulage dans des zones particulièrement inondées, de manière à limiter les intrusions d'eau dans celui-ci.  1. Splashproofing device for a road vehicle clutch housing (2) on its coupling face to the cylinder block (6) of the engine (1), characterized in that it consists of a shutter (7) conforming to the shape of the cylinder block (6) by closing the orifices (4) of the clutch housing (2), which can be reached by water, while driving in particularly flooded areas, so as to limit the intrusions of water into it. 2. Dispositif d'étanchéité selon la revendication 1, caractérisé en ce qu'il est intercalé entre le carter d'embrayage (2) et le démarreur (3) du moteur.  2. Sealing device according to claim 1, characterized in that it is interposed between the clutch housing (2) and the starter (3) of the engine. 3. Dispositif d'étanchéité selon la revendication 2, caractérisé en ce qu'il est fixé sur le carter cylindre (6) par les vis de fixation (8) du démarreur (3).  3. Sealing device according to claim 2, characterized in that it is fixed on the cylinder block (6) by the fixing screws (8) of the starter (3). 4. Dispositif d'étanchéité selon la revendication 3, caractérisé en ce qu'il présente des trous (9) traversés par les vis de fixation (8) du démarreur (3).  4. Sealing device according to claim 3, characterized in that it has holes (9) through which the fixing screws (8) of the starter (3). 5. Dispositif d'étanchéité selon l'une des revendications précédentes, caractérisé en ce qu'il est constitué d'une tôle emboutie (7) de faible épaisseur.  5. Sealing device according to one of the preceding claims, characterized in that it consists of a stamped sheet (7) of small thickness.
FR0552551A 2005-08-23 2005-08-23 CLUTCH CASE SEALING DEVICE Expired - Fee Related FR2890033B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0552551A FR2890033B1 (en) 2005-08-23 2005-08-23 CLUTCH CASE SEALING DEVICE

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Application Number Priority Date Filing Date Title
FR0552551A FR2890033B1 (en) 2005-08-23 2005-08-23 CLUTCH CASE SEALING DEVICE

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FR2890033A1 true FR2890033A1 (en) 2007-03-02
FR2890033B1 FR2890033B1 (en) 2008-09-19

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2328518A (en) * 1941-12-27 1943-08-31 Nash Kelvinator Corp Clutch housing insulator
US2770971A (en) * 1951-12-07 1956-11-20 Gen Motors Corp Flywheel, clutch and starter housing drain
GB1323855A (en) * 1971-02-05 1973-07-18 Ford Motor Co Inermediate plate for assembly between engine and gearbox in motor vehicles
US3772938A (en) * 1972-11-06 1973-11-20 Whittaker Corp Universal bell housing and deflector plate
JP2001289314A (en) * 2000-04-03 2001-10-19 Suzuki Motor Corp Transmission case connecting part structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2328518A (en) * 1941-12-27 1943-08-31 Nash Kelvinator Corp Clutch housing insulator
US2770971A (en) * 1951-12-07 1956-11-20 Gen Motors Corp Flywheel, clutch and starter housing drain
GB1323855A (en) * 1971-02-05 1973-07-18 Ford Motor Co Inermediate plate for assembly between engine and gearbox in motor vehicles
US3772938A (en) * 1972-11-06 1973-11-20 Whittaker Corp Universal bell housing and deflector plate
JP2001289314A (en) * 2000-04-03 2001-10-19 Suzuki Motor Corp Transmission case connecting part structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02) *

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FR2890033B1 (en) 2008-09-19

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Effective date: 20130430