FR2924754A3 - Turbo-supercharger and exhaust duct assembling part for internal combustion engine, has threaded cylindrical portions cooperated with internal thread of turbo of turbo-supercharger and internal thread of exhaust duct, respectively - Google Patents

Turbo-supercharger and exhaust duct assembling part for internal combustion engine, has threaded cylindrical portions cooperated with internal thread of turbo of turbo-supercharger and internal thread of exhaust duct, respectively Download PDF

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Publication number
FR2924754A3
FR2924754A3 FR0759663A FR0759663A FR2924754A3 FR 2924754 A3 FR2924754 A3 FR 2924754A3 FR 0759663 A FR0759663 A FR 0759663A FR 0759663 A FR0759663 A FR 0759663A FR 2924754 A3 FR2924754 A3 FR 2924754A3
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FR
France
Prior art keywords
turbo
exhaust duct
supercharger
cylindrical portions
internal thread
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.)
Withdrawn
Application number
FR0759663A
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French (fr)
Inventor
Pascal Hottebart
Malet Etienne De
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR0759663A priority Critical patent/FR2924754A3/en
Publication of FR2924754A3 publication Critical patent/FR2924754A3/en
Withdrawn legal-status Critical Current

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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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

The part (8) has threaded cylindrical portions (8a, 8b) cooperated with an internal thread of a turbo (7) of a turbo-supercharger (5) and an internal thread of an exhaust duct (11), respectively. The cylindrical portions have different thread pitches, and have identical length. A hexagon shaped central portion (8c) is cooperated with a rotatingly driving tool that rotatingly drives the part. A compressor (9) is connected to the turbo of the turbo-supercharger, and compresses fresh gas aspired by an internal combustion engine.

Description

, PIECE D'ASSEMBLAGE D'UN TURBOCOMPRESSEUR ET D'UN CONDUIT D'ECHAPPEMENT L'invention concerne le domaine des moteurs à combustion interne. Elle 5 concerne en particulier une pièce d'assemblage d'un turbocompresseur et d'un conduit d'échappement. TECHNICAL FIELD The invention relates to the field of internal combustion engines. It relates in particular to an assembly part of a turbocharger and an exhaust duct.

Lorsque deux pièces sont destinées à être assemblées, la conception d'une des pièces peut influer sur la conception de l'autre pièce. C'est le cas par 10 exemple pour les turbocompresseurs et pour les conduits d'échappement que l'on fixe à la sortie du turbo. Il existe plusieurs types de conduits d'échappement que l'on place en sortie du turbo. Cette diversité induit de développer un grand nombre de turbos car pour chaque conduit l'interface, encore appelé bride de fixation, entre le turbo et le conduit d'échappement 15 est différente. Ces étapes de développement supplémentaires sont consommatrices de temps. When two parts are to be assembled, the design of one part may affect the design of the other part. This is the case for example for turbochargers and exhaust ducts that are fixed at the output of the turbo. There are several types of exhaust ducts that are placed at the outlet of the turbo. This diversity induces the development of a large number of turbos because for each duct the interface, also called clamp, between the turbo and the exhaust duct 15 is different. These additional development steps are time consuming.

On souhaite donc conserver' la forme du turbo, et en particulier la forme de l'interface entre le turbo et le conduit d'échappement, quelque soit la forme du 20 conduit d'échappement et ne pas avoir à redessiner un nouveau turbo pour chaque conduit d'échappement différent. It is therefore desired to preserve the shape of the turbo, and in particular the shape of the interface between the turbo and the exhaust duct, whatever the shape of the exhaust duct and not having to redesign a new turbo for each different exhaust duct.

En outre, aujourd'hui l'assemblage du turbo et du conduit d'échappement est réalisé par des opérateurs à l'aide de vis en utilisant des visseuses 25 automatiques. La géométrie du turbo, du conduit d'échappement et de leurs brides de fixation respectives rendent _difficile l'accès à la zone de fixation. -2- On cherche donc.une solution permettant l'assemblage du turbo et du conduit d'échappement plus aisé avec une meilleure accessibilité pour la fixation. In addition, today the assembly of the turbo and the exhaust duct is performed by operators using screws using automatic screwdrivers. The geometry of the turbo, the exhaust duct and their respective fastening flanges makes access to the fastening area difficult. -2- So we seek.a solution for assembling the turbo and the exhaust duct easier with better accessibility for fixing.

Un but de l'invention est de résoudre les problèmes de l'art antérieur en proposant une pièce d'assemblage d'un turbocompresseur et d'un conduit d'échappement permettant de ne pas redëvelopper le turbocompresseur, lorsque les caractéristiques du conduit d'échappement changent, et permettant également un assemblage facile des deux pièces. An object of the invention is to solve the problems of the prior art by proposing an assembly part of a turbocharger and an exhaust duct for not redeveloping the turbocharger, when the characteristics of the duct. Exhaust change, and also allowing easy assembly of both parts.

10 L'invention concerne une pièce pour l'assemblage d'un turbocompresseur et d'un conduit d'échappement caractérisé en ce qu'elle comporte deux portions cylindriques filetées destinées à coopérer respectivement avec un taraudage du turbo du turbocompresseur et avec un taraudage du conduit d'échappement. 15 Selon d'autres caractéristiques prises séparément ou en combinaison: la pièce comporte une portion centrale destinée à cooperer avec un outil pour son entraînement en rotation, la portion centrale est de forme hexagonale, 20 la pièce définit un évidement destiné au passage des gaz d'échappement, les portions cylindriques ont un pas de filetage différent, les portions cylindriques ont une longueur identique. The invention relates to a part for assembling a turbocharger and an exhaust duct characterized in that it comprises two threaded cylindrical portions intended to cooperate respectively with a tapping of the turbocharger turbo and with a tapping of the exhaust duct. According to other features taken separately or in combination: the part comprises a central portion intended to cooperate with a tool for its rotation drive, the central portion is of hexagonal shape, the part defines a recess for the passage of the gases of the cylindrical portions have a different thread pitch, the cylindrical portions have an identical length.

25 L'invention concerne également un ensemble comportant un turbocompresseur et un conduit d'échappement caractérisé comportant en outre une pièce telle que définie ci-dessus. 2924754. Dans un mode de réalisation, le turbocompresseur et le conduit comporte chacun un taraudage, chaque taraudage coopérant respectivement avec le filetage d'une des portions cylindrique de la pièce. The invention also relates to an assembly comprising a turbocharger and a characterized exhaust pipe further comprising a part as defined above. In one embodiment, the turbocharger and the duct each comprise a thread, each thread cooperating respectively with the thread of one of the cylindrical portions of the workpiece.

L'invention concerne enfin un moteur à combustion interne comportant un ensemble tel que défini ci-dessus. The invention finally relates to an internal combustion engine comprising an assembly as defined above.

D'autres avantages et caractéristiques de la présente invention apparaîtront à la lecture de la descriptions détaillée d'un mode de réalisation, non limitatif, 10 faite en référence aux figures sur lesquelles: la figure 1 est une vue en perspective d'une pièce d'assemblage selon l'invention, la figure 2 est une vue de côté de la figure 1, la figure 3 est une coupe de la figure 2 selon la ligne A-A, 15 la figure 4 est une vue en coupe axiale d'un agencement d'un turbocompresseur et d'un conduit d'échappement assemblés avec une pièce selon l'invention, la figure '5 est une vue en coupe de la figure 4 selon la ligne A-A. Other advantages and features of the present invention will appear on reading the detailed description of a nonlimiting embodiment, with reference to the figures in which: FIG. 1 is a perspective view of a part of a FIG. 2 is a side view of FIG. 1, FIG. 3 is a cross-section of FIG. 2 along the line AA, FIG. 4 is an axial sectional view of an arrangement of FIG. A turbocharger and an exhaust duct assembled with a part according to the invention, Figure 5 is a sectional view of Figure 4 along the line AA.

20 On se reporte à présent aux figures 1: à 3 qui sont des vues de la pièce d'assemblage 8 selon l'invention. La pièce 8 comporte deux portions cylindriques 8a et 8b filetées et une portion de forme hexagonale 8c. Le pas de filetage de chacune des portions 8a et 8b est différent. La portion hexagonale 8c est destinée à coopérer avec un outil d'entraînement en 25 rotation de la pièce 8. La pièce 8 définit en outre un évidement 8d destiné au passage des gaz d'échappement. Les portions 8a et 8b peuvent avoir une longueur 'B' identique. Referring now to FIGS. 1 to 3 which are views of the joining part 8 according to the invention. The part 8 comprises two threaded cylindrical portions 8a and 8b and a hexagonal shaped portion 8c. The thread pitch of each of the portions 8a and 8b is different. The hexagonal portion 8c is intended to cooperate with a rotating drive tool of the part 8. The part 8 further defines a recess 8d for the passage of the exhaust gas. Portions 8a and 8b may have an identical length 'B'.

On a représenté à la figure 4 un turbocompresseur 5 comportant un turbo 7, destiné à récupérer la puissance des gaz d'échappement en provenance d'un moteur à combustion interne, et un compresseur 9 lié au turbo 7 et destiné à comprimer les gaz frais aspirés par un moteur à combustion interne. Le turbo 7 est lié à un conduit 11 destiné à évacuer les gaz d'échappement produits par un, moteur à combustion interne par l'intermédiaire du dispositif de liaison 8. FIG. 4 shows a turbocharger 5 comprising a turbo 7 intended to recover the power of the exhaust gases coming from an internal combustion engine, and a compressor 9 linked to the turbo 7 and intended to compress the fresh gases. sucked by an internal combustion engine. The turbo 7 is connected to a duct 11 intended to evacuate the exhaust gases produced by an internal combustion engine by means of the connecting device 8.

La figure 5 est une vue en coupe de la figure 4 selon la ligne A-A et va 10 permettre de décrire l'assemblage du turbo 7 et du conduit 11 à l'aide de la pièce 8. FIG. 5 is a sectional view of FIG. 4 along the line A-A and will make it possible to describe the assembly of the turbo 7 and the duct 11 with the aid of the part 8.

Comme on peut le voir sur cette figure, le turbo 7 comporte une surface interne taraudée 7a destinée à coopérer avec la pièce 8 selon l'invention. De 15 même, le conduit d'échappement 11 comporte une surface interne taraudée 11 a destinée à coopérer avec la pièce d'assemblage 8 selon l'invention. As can be seen in this figure, the turbo 7 has a threaded internal surface 7a intended to cooperate with the part 8 according to the invention. Similarly, the exhaust duct 11 has a threaded inner surface 11a for cooperating with the assembly part 8 according to the invention.

Lorsqu'un opérateur désire fixer un conduit d'échappement 11 à un turbo 7, il met tout d'abord en place un joint d'étanchéité 13 sur chacune des portions 20 cylindriques 8a et 8b de la pièce d'assëmblage 8. L'opérateur introduit ensuite les extrémités des portions cylindriques filetées 8a et 8b respectivement dans le trou défini par la surface interne taraudée 7a du turbocompresseur 7 et dans le trou défini par la surface interne taraudée 11 a du conduit d'échappement 11. L'opérateur entraîne ensuite en rotation la 25 pièce 8 à l'aide d'un outil approprié coopérant avec la partie centrale hexagonale 8c de la pièce d'assemblage. Cette opération provoque la solidarisation du turbo 7 de la pièce 8 et du conduit d'échappement 11. When an operator wishes to attach an exhaust duct 11 to a turbo 7, he first puts in place a seal 13 on each of the cylindrical portions 8a and 8b of the assem- blying piece 8. operator then introduces the ends of the threaded cylindrical portions 8a and 8b respectively in the hole defined by the internal threaded surface 7a of the turbocharger 7 and in the hole defined by the internal threaded surface 11a of the exhaust duct 11. The operator then drives in rotation the piece 8 by means of a suitable tool cooperating with the hexagonal central portion 8c of the assembly part. This operation causes the turbo 7 of the part 8 and the exhaust duct 11 to become integral.

Grâce au dispositif selon l'invention, le turbo 7 et le conduit d'échappement 11 n'ont plus besoin d'être équipés de brides de fixation. Si la forme d'une des pièces change, seules certaines caractéristiques de la pièce 8 changent, par exemple le diamètre externe des portions cylindriques 8a et 8b. Thanks to the device according to the invention, the turbo 7 and the exhaust duct 11 no longer need to be equipped with fixing flanges. If the shape of one of the pieces changes, only certain characteristics of the piece 8 change, for example the outer diameter of the cylindrical portions 8a and 8b.

Claims (7)

REVENDICATIONS 1 Pièce (8) pour l'assemblage d'un turbocompresseur (7) et d'un conduit d'échappement (11) caractérisée en ce qu'elle comporte deux portions cylindriques (8a,8b) filetées destinées a coopérer respectivement avec un taraudage du turbo (7) du turbocompresseur (5) et avec un taraudage du conduit d'échappement (11). 1 piece (8) for assembling a turbocharger (7) and an exhaust duct (11) characterized in that it comprises two threaded cylindrical portions (8a, 8b) intended to cooperate respectively with a tapping turbo (7) of the turbocharger (5) and with a tapping of the exhaust duct (11). 2. Pièce selon la revendication précédente caractérisée en ce qu'elle 10 comporte une portion centrale (8c) destinée à coopérer avec un outil pour l'entraînement en rotation de la pièce (8). 2. Part according to the preceding claim characterized in that it comprises a central portion (8c) intended to cooperate with a tool for driving in rotation of the workpiece (8). 3. Pièce selon la revendication précédente caractérisée en ce que la portion centrale (8c) est de forme hexagànaie. 3. Part according to the preceding claim characterized in that the central portion (8c) is of hexagonal shape. 4. Pièce selon l'une quelconque des revendication précédente caractérisée en ce qu'elle définit un évidement (8d) destiné au passage des gaz d'échappement. 20 4. Part according to any preceding claim characterized in that it defines a recess (8d) for the passage of exhaust gas. 20 5. Pièce selon l'une quelconque des revendications précédente caractérisée en ce que les portions cylindriques (8a,8b) ont un pas de filetage différent. 5. Part according to any one of the preceding claims characterized in that the cylindrical portions (8a, 8b) have a different thread pitch. 6. Pièce selon l'une quelconque des-revendications précédentes caractérisée en ce que les portions cylindriques (8a,8b) ont une longueur (e) identique. 6. Part according to any one of the preceding claims characterized in that the cylindrical portions (8a, 8b) have a length (e) identical. 7. Ensemble comportant un turbocompresseur (5) et un conduit d'échappement (11) caractérisé en ce qu'il comporte une pièce (8) selon l'une quelconque des revendications précédentes. 15 25. Ensemble selon la revendication précédente caractérisé en ce que le turbocompresseur (5) et le conduit (11) comporte chacun un taraudage, chaque taraudage coopérant respectivement avec le filetage d'une des portions cylindrique (8a, 8b) de la pièce. 9. Moteur à combustion interne comportant un ensemble selon l'une quelconque des revendications 7 ou8. 7. An assembly comprising a turbocharger (5) and an exhaust duct (11) characterized in that it comprises a part (8) according to any one of the preceding claims. 25. An assembly according to the preceding claim characterized in that the turbocharger (5) and the conduit (11) each comprises a thread, each thread cooperating respectively with the thread of one of the cylindrical portions (8a, 8b) of the workpiece. 9. Internal combustion engine comprising an assembly according to any one of claims 7 or 8.
FR0759663A 2007-12-07 2007-12-07 Turbo-supercharger and exhaust duct assembling part for internal combustion engine, has threaded cylindrical portions cooperated with internal thread of turbo of turbo-supercharger and internal thread of exhaust duct, respectively Withdrawn FR2924754A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0759663A FR2924754A3 (en) 2007-12-07 2007-12-07 Turbo-supercharger and exhaust duct assembling part for internal combustion engine, has threaded cylindrical portions cooperated with internal thread of turbo of turbo-supercharger and internal thread of exhaust duct, respectively

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0759663A FR2924754A3 (en) 2007-12-07 2007-12-07 Turbo-supercharger and exhaust duct assembling part for internal combustion engine, has threaded cylindrical portions cooperated with internal thread of turbo of turbo-supercharger and internal thread of exhaust duct, respectively

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FR2924754A3 true FR2924754A3 (en) 2009-06-12

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FR0759663A Withdrawn FR2924754A3 (en) 2007-12-07 2007-12-07 Turbo-supercharger and exhaust duct assembling part for internal combustion engine, has threaded cylindrical portions cooperated with internal thread of turbo of turbo-supercharger and internal thread of exhaust duct, respectively

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112011102945B4 (en) 2010-10-25 2021-10-14 Borgwarner Inc. Exhaust turbocharger and manifold module

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US349146A (en) * 1886-09-14 Pipe-coupling
FR1331172A (en) * 1962-08-16 1963-06-28 L & L Mfg Company Tubular coupling
DE1928403A1 (en) * 1969-06-04 1970-12-17 Eberspaecher J Detachable connection for pipelines
NL7207792A (en) * 1971-06-23 1972-12-28 Sr J Rosan
DE2557571A1 (en) * 1975-12-20 1977-06-30 Baumann Geb Fully enamelled IC engine exhaust gas silencer - is of absorption type and made in sections with peripheral flange connections
FR2626343A1 (en) * 1988-01-27 1989-07-28 Rexnord Holdings Inc NI4COMPOSITE CONNECTION ELEMENT FOR HYDRAULIC FLUID PIPES
DE19645384A1 (en) * 1996-11-04 1998-05-14 Daimler Benz Ag Flange connection for parts to be connected to one another

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US349146A (en) * 1886-09-14 Pipe-coupling
FR1331172A (en) * 1962-08-16 1963-06-28 L & L Mfg Company Tubular coupling
DE1928403A1 (en) * 1969-06-04 1970-12-17 Eberspaecher J Detachable connection for pipelines
NL7207792A (en) * 1971-06-23 1972-12-28 Sr J Rosan
DE2557571A1 (en) * 1975-12-20 1977-06-30 Baumann Geb Fully enamelled IC engine exhaust gas silencer - is of absorption type and made in sections with peripheral flange connections
FR2626343A1 (en) * 1988-01-27 1989-07-28 Rexnord Holdings Inc NI4COMPOSITE CONNECTION ELEMENT FOR HYDRAULIC FLUID PIPES
DE19645384A1 (en) * 1996-11-04 1998-05-14 Daimler Benz Ag Flange connection for parts to be connected to one another

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112011102945B4 (en) 2010-10-25 2021-10-14 Borgwarner Inc. Exhaust turbocharger and manifold module

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