WO2020002265A1 - Assemblage d'un flexible d'echappement et d'un dispositif de protection - Google Patents
Assemblage d'un flexible d'echappement et d'un dispositif de protection Download PDFInfo
- Publication number
- WO2020002265A1 WO2020002265A1 PCT/EP2019/066715 EP2019066715W WO2020002265A1 WO 2020002265 A1 WO2020002265 A1 WO 2020002265A1 EP 2019066715 W EP2019066715 W EP 2019066715W WO 2020002265 A1 WO2020002265 A1 WO 2020002265A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- collar
- assembly according
- flared end
- parts
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
- F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
- F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
Definitions
- the invention relates to an assembly of an exhaust hose and a device for protecting said hose.
- the exhaust hose is welded to a flared flange, which is fixed by screwing on a flange of the exhaust manifold, engine side.
- a temporary protection device surrounds the hose, in particular to protect it from welding attack.
- connection between flanges is replaced by a "biconical" connection between the motor flange and one end of the hose, said connection being provided by a circular clamping collar.
- the clamp To guarantee accessibility to factory assembly, and to disassembly after-sales in the garage, the clamp must be indexed in position on the hose.
- the hose and the collar are assembled in one place, then are thus routed assembled in another place, where the hose is to be mounted on a vehicle, said other place can for example be a particular zone of a chain of assembly of said vehicle.
- the current protector protects only the hose and not the hose clamp pre-mounted on the hose.
- a device for protecting an assembly according to the invention makes it possible to guarantee protection both of the hose and of the collar.
- the subject of the invention is an assembly of an exhaust hose having a flared end around which a clamp is mounted, and a device for protecting said hose.
- the protection device comprises a housing provided with two parts articulated around an axis of rotation, said two articulated parts being able to fold against one another by pivoting to wrap the entire hose. , the flared end and the collar.
- This device protection is particularly effective because it encloses the hose, the flared end and the collar.
- a housing is made of plastic.
- the purpose of the hose clamp is to secure the hose to a motor flange.
- the housing once it has been closed on the flexible, the flared end and the collar, has a mushroom shape, with a straight cylindrical foot extended by an enlarged rounded head.
- a case has a generally rounded shape, without presenting any particular roughness and which favors easy handling.
- the two parts are complementary so as to form a hollow housing once they have been folded against each other.
- the hose is a hollow cylindrical part
- the housing being a part having a hollow cylindrical body intended to wrap the hose, and an enlarged closed head intended to wrap the flared end and the collar.
- the profile of the housing adapts to the profile of the assembly constituted by the flexible, the flared end and the clamp.
- the housing is dimensioned as tightly as possible so as to completely envelop this assembly, without creating superfluous free spaces between said housing and said assembly.
- the axis of rotation is placed in abutment against the flared end, the two parts which are initially placed on either side of the hose, being folded over the latter to grip the flared end provided with the collar clamp and said flexible.
- the flared end is hollow, the housing comprising a centering pin intended to penetrate into said end in order to preposition the protection device relative to the hose.
- the centering pin is first inserted into the flared end of the hose so as to properly preposition the housing on said hose. It then becomes easy to fold the two articulated parts together.
- the centering pin is cylindrical.
- said pin is hollow in particular in order to lighten the protective housing.
- the centering pin is elongated and has a collar whose plane is perpendicular to a longitudinal axis of said pin, said collar serving as a support element for the two articulated parts which have folded against each other. .
- the flange acts as a spacer capable of holding the enlarged head of the protection device, in a rounded configuration.
- the two articulated parts each have fixing means able to cooperate together, to allow the said parts to be joined to one another when they surround the flexible, the flared end and the collar. Indeed, once the two parts have been folded against each other by wrapping the assembly constituted by the flexible, the flared end and the clamp, it is necessary that they remain closely in contact l 'one of the other to properly enclose this set, and eliminate any possibility of inadvertent opening.
- These fixing means are assumed to be reversible, in order to allow the protective casing to be able to be removed easily when the hose is mounted on the engine of the vehicle concerned.
- the fixing means are plastic clips. These are the simplest and quickest means of installation, requiring neither special tools nor complicated handling.
- the enlarged hollow head is dimensioned relative to the clamp so as to leave a clearance between said head and said collar.
- the hose clamp is an insert which is just placed on the flared end of the hose, the protective casing must not interfere with said collar, under penalty of moving or damaging said collar at the slightest shock produced on said housing.
- the hose has an end flange, the two articulated parts coming to bear against the flange when they enclose the hose, the flared end and the collar, in order to prevent any sliding of the protection device along hose.
- the end flange is to prevent this sliding by constituting a stop stop for the protective housing.
- Another subject of the invention is a protection device for producing an assembly according to the invention.
- a protection device comprises a housing provided with two parts articulated around an axis of rotation, said assembly comprising a centering pin on which said axis of rotation is secured.
- An assembly according to the invention has the advantage of comprising a hose directly ready for assembly, thanks to the presence of the clamp, and of being able to transport it safely on the premises if it is assembled thanks to a housing enveloping the whole. hose and hose clamp.
- the protective housing implemented in an assembly according to the invention has the advantage of being easy and quick to place around the hose, and of being able to be removed just as easily and quickly before mounting the hose on a vehicle.
- Such a protective casing also has the advantage of being dimensioned so as to be able to protect a hose provided with its hose clamp without interfering with said hose clamp.
- FIG. 1 is a side view of an assembly constituted by a hose, a flared end and a clamp to make an assembly according to the invention
- FIGS. 2A and 2B are respectively a perspective view and a sectional view of the interaction between a hose of an assembly according to the invention, and an engine flange,
- FIG. 3 is a perspective view of a device for protecting an assembly according to the invention
- FIGS. 4A and 4B are two perspective views of a hose and a device for protecting an assembly according to the invention, at two different stages of mounting said device on said hose,
- FIGS. 5A and 5B are two sectional views of a hose and of a device for protecting an assembly according to the invention, respectively when said protection device is open and closed around the hose,
- FIG. 6 is a side view of a device for protecting an assembly according to the invention, showing it simultaneously in the open position and in the closed position,
- FIG. 7 is a perspective view of a device for protecting an assembly according to the invention, in a closed position around the hose,
- FIG. 8 is a perspective view of a device for protecting an assembly according to the invention, showing its axis of rotation
- FIG. 9 is a sectional view of a rear area of an assembly according to the invention showing a rear flange of the hose.
- An assembly 1 comprises an assembly composed of a hose 2 provided with a flared end 3 and a clamp 4, and a protection device 5 intended to protect this assembly in order to route it in complete safety to a mounting point of said hose 2 on a vehicle engine.
- the hose 2 is a hollow cylindrical piece of elongated shape, having a flared end 3 constituted by a hollow flange inserted in said hose 2 and emerging from it.
- the part 6 of the flange 3 which emerges from the flexible 2 is constituted by a wall of frustoconical shape, the cross section of said part 6 increasing regularly as one moves away from the flexible 2.
- the flexible 2 is intended to be fixed on a flange 7 of an engine, which is a hollow cylindrical part having an annular bead 8 locally widening said flange 7.
- the bead 8 is delimited by two edges 9, 10 in continuity of one another and inclined with respect to each other, so that the cross section of the bead 8 is maximum at its central circumference 11, and decreases progressively on either side of said circumference central 11.
- the flexible 2 is fixed in the flange 7 of the motor by means of an insertion of said flange 7 in the flange 3 of the flexible 2 until one of the edges 9, 10 delimiting the bead 8 comes in contact with an internal surface of the frustoconical wall of the emerging part of the flange 3 of the hose 2.
- the collar 4 is in the form of a ring delimited by two edges 12, 13 so that the cross section of said ring is maximum at its central circumference and gradually decreases on either side of said central circumference.
- This ring 4 covers the bead 8 of the motor flange 7, and the frustoconical wall 6 of the flange 3 of the hose 2, a tightening of said collar 4 pressing said frustoconical wall 6 against one of the edges 9, 10 delimiting said bead 8.
- the protection device 5 is composed of a housing comprising two articulated parts 15, 16 around an axis of rotation 17 and a centering pin 18.
- the two parts 15, 16 are identical and each comprise a semi-cylindrical hollow body 19 extended by a hollow half-head 20 of frustoconical shape.
- the two parts 15, 16 are in continuity and are connected to each other by means of the axis of rotation 17 which may for example be constituted by a strip of material of lesser thickness and able to bend to bring closer or farther these two parts 15, 16.
- the two parts 15, 16 and the axis of rotation 18 are made of the same material.
- the centering pin 18 comprises an elongated hollow cylindrical body 21 and a flat and annular flange 22, the plane of which is perpendicular to a longitudinal axis of said elongated body 21.
- the hollow cylindrical body 21 has a first end at which the flange 22 is located and a second free end ending in a hollow cylindrical section 23 of reduced diameter compared to the diameter of the rest of said body 21, this difference in diameter inducing a shoulder 30.
- the axis of rotation 17 located between the two articulated parts 15, 16 is secured to the centering pin 18 at a zone central flange 22.
- the centering pin 18, the two articulated parts 15, 16 and the axis of rotation 17 are made of the same material.
- the two parts 15, 16 are capable of passing from an open position, as illustrated in FIGS. 3, 4A, and 4B to a closed position, as illustrated in FIGS. 6 and 7, for which said two parts 15 , 16 are folded against each other by means of a pivoting in the direction materialized by the two arrows 24, 25 of FIG. 6.
- the two parts 15, 16 are complementary to constitute a part hollow in the shape of a mushroom, provided with a cylindrical body of constant diameter, extended by an enlarged cylindrical head 27 having a variable diameter and greater than that of said body 26.
- the hose 2 has a rear flange 40 on which the free ends of the two articulated parts 15, 16 come into abutment, in order to prevent sliding of the protection device along the hose 2. It should be noted that the enlarged cylindrical head 27 is dimensioned so that there is play between said part 27 and the clamp 4 mounted on the enlarged end 3 of the hose 2.
- a method of fitting the protection device 5 onto the assembly constituted by the flexible 2, the flared end 3 and the clamp 4, follows the following steps,
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980045543.6A CN112424456A (zh) | 2018-06-28 | 2019-06-24 | 排气软管和保护装置的组件 |
EP19732663.0A EP3814615B1 (fr) | 2018-06-28 | 2019-06-24 | Assemblage d'un flexible d'échappement et d'un dispositif de protection |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1855841A FR3083289A1 (fr) | 2018-06-28 | 2018-06-28 | Assemblage d'un flexible d'echappement et d'un dispositif de protection |
FR1855841 | 2018-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020002265A1 true WO2020002265A1 (fr) | 2020-01-02 |
Family
ID=63407475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/066715 WO2020002265A1 (fr) | 2018-06-28 | 2019-06-24 | Assemblage d'un flexible d'echappement et d'un dispositif de protection |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3814615B1 (fr) |
CN (1) | CN112424456A (fr) |
FR (1) | FR3083289A1 (fr) |
WO (1) | WO2020002265A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20013124U1 (de) * | 2000-07-29 | 2000-12-07 | Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben | Vorrichtung zum Schutz von Flexelementen |
WO2003011678A1 (fr) * | 2001-07-27 | 2003-02-13 | Audi Ag | Dispositif de protection durant le transport |
WO2010040936A1 (fr) * | 2008-10-10 | 2010-04-15 | Renault S.A.S. | Element protecteur pour organe a proteger notamment un flexible d'echappement |
FR2937015A1 (fr) * | 2008-10-15 | 2010-04-16 | Financ De Beaumont Fdb | Dispositif de protection de flexible associe a un pot d'echappement. |
US20120318371A1 (en) * | 2011-06-17 | 2012-12-20 | Caterpillar Inc. | Bellows assembly and engaging structure |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2504544A1 (de) * | 1975-02-04 | 1976-08-05 | Pforzheim Metallschlauch | Flexibles leitungselement fuer abgasleitungen von kraftfahrzeugen |
DE19606738A1 (de) * | 1996-02-23 | 1997-09-04 | Witzenmann Metallschlauchfab | Gelenkiges Verbindungselement für Rohrteile |
DE69718237T2 (de) * | 1996-05-29 | 2003-06-05 | Calsonic Kansei Corp., Tokio/Tokyo | Flexible Rohreinheit zur Verwendung in Auspuffsystem von Fahrzeugbrennkraftmaschine |
-
2018
- 2018-06-28 FR FR1855841A patent/FR3083289A1/fr not_active Withdrawn
-
2019
- 2019-06-24 WO PCT/EP2019/066715 patent/WO2020002265A1/fr active Application Filing
- 2019-06-24 EP EP19732663.0A patent/EP3814615B1/fr active Active
- 2019-06-24 CN CN201980045543.6A patent/CN112424456A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20013124U1 (de) * | 2000-07-29 | 2000-12-07 | Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben | Vorrichtung zum Schutz von Flexelementen |
WO2003011678A1 (fr) * | 2001-07-27 | 2003-02-13 | Audi Ag | Dispositif de protection durant le transport |
WO2010040936A1 (fr) * | 2008-10-10 | 2010-04-15 | Renault S.A.S. | Element protecteur pour organe a proteger notamment un flexible d'echappement |
FR2937015A1 (fr) * | 2008-10-15 | 2010-04-16 | Financ De Beaumont Fdb | Dispositif de protection de flexible associe a un pot d'echappement. |
US20120318371A1 (en) * | 2011-06-17 | 2012-12-20 | Caterpillar Inc. | Bellows assembly and engaging structure |
Also Published As
Publication number | Publication date |
---|---|
FR3083289A1 (fr) | 2020-01-03 |
EP3814615B1 (fr) | 2023-02-22 |
EP3814615A1 (fr) | 2021-05-05 |
CN112424456A (zh) | 2021-02-26 |
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