EP3612725A1 - Habillage de pot d'échappement comprenant un élément de liaison - Google Patents

Habillage de pot d'échappement comprenant un élément de liaison

Info

Publication number
EP3612725A1
EP3612725A1 EP18718428.8A EP18718428A EP3612725A1 EP 3612725 A1 EP3612725 A1 EP 3612725A1 EP 18718428 A EP18718428 A EP 18718428A EP 3612725 A1 EP3612725 A1 EP 3612725A1
Authority
EP
European Patent Office
Prior art keywords
tube
connecting element
exhaust
contact surface
projection
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Withdrawn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
EP18718428.8A
Other languages
German (de)
English (en)
Inventor
Angel Orille
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.)
Cisma Solutions ApS
Original Assignee
Cisma Solutions ApS
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 Cisma Solutions ApS filed Critical Cisma Solutions ApS
Publication of EP3612725A1 publication Critical patent/EP3612725A1/fr
Withdrawn legal-status Critical Current

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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • 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
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • 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
    • 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
    • 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
    • F01N13/20—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 having flared outlets, e.g. of fish-tail shape
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/082—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using an element which is hinged on one end of the pipe-ends and which is maintained in locked position by a screw tightened against the other pipe-end
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • F16L9/128—Reinforced pipes

Definitions

  • the invention relates to an exhaust trim for a motor vehicle, the exhaust trim comprising:
  • DE 20 2015 103 869 U1 describes an exhaust exhaust pipe mounting system for mounting an exhaust pipe to an exhaust pipe end, the mounting system comprising a spring assembly of at least three spring members that can be secured to the exhaust pipe, each spring member being bent into a waveform.
  • a gripping part is formed with at least one cutout for forming at least two pointed ends.
  • a first and a second downwards shaft part of the wave-shaped spring elements each have a horizontal spring part.
  • a tail pipe for an exhaust pipe of a vehicle comprising a pipe body, a plurality of tension spring blades and a plurality of self-locking spring blades.
  • the pipe body has an inlet end to be stowed on an outer wall of a foot end of the exhaust pipe.
  • the plurality of tension spring blades are on an inner wall of the tubular body arranged, each of the tension spring leaves has a fixed to the inner wall of the tubular body mounting portion and a clamping portion for abutment against an outer wall of the exhaust pipe.
  • the tension spring leaf can have a recess in order to increase the supporting force.
  • Object of the present invention is therefore to provide an exhaust cover described above, which allows a reliable holding the second tube to the first tube with large temperature and manufacturing variations. This object is achieved by an exhaust trim according to claim 1.
  • the dependent claims give preferred developments again.
  • the object of the invention is thus achieved by an exhaust trim for a motor vehicle.
  • the exhaust panel has a first tube and a second tube. Furthermore, the exhaust panel on a connecting element, which is at least partially elastic.
  • the connecting element is arranged between the first tube and the second tube and serves to connect the second tube to the first tube.
  • the first connecting element is arranged via an end claw on the first tube. Furthermore, the first connecting element is arranged via a punctiform contact surface on the first tube. There is a radial distance between the connecting element and the first tube between the end-side claw and the point-shaped contact surface.
  • a punctiform contact surface is now provided.
  • the point-shaped contact surface allows a very defined support of the first connecting element on the first tube.
  • the first connecting element is supported by a linear or area-shaped contact surface on the first tube, the support was carried out depending on the temperature and maintained manufacturing tolerance of the exhaust panel - undefined. Even slight fluctuations, in particular the temperature, vary the actual contact region of the first connecting element on the first tube in the case of a linear or planar contact surface.
  • a punctiform contact surface may be understood to mean a contact surface whose dimensions are smaller than 1 mm 2 , in particular smaller than 0.25 mm 2 , preferably smaller than 0.1 mm 2 .
  • the first tube and / or the second tube are / is not necessarily cylindrical.
  • the first tube and / or the second tube may / may have a free-form geometry.
  • the point-shaped contact surface is preferably achieved by a straight bend of the first connecting element, which bears against the curved surface of the first tube.
  • the first connecting element can be manufactured particularly cost-effectively if it is designed in the form of a multiply folded or folded sheet-metal strip.
  • the second tube may be disposed radially inside the first tube.
  • the first tube is arranged radially inside the second tube, so that the first connecting element bears radially on the inside over the end-side claw and the punctiform contact surface on the first tube.
  • the first pipe is designed in the form of an exhaust tail pipe and the second pipe is designed in the form of an exhaust panel.
  • the connecting element may have - relative to the first tube - radially opposite the end-side claw and the punctiform contact surface a projection over which the first connecting element bears rocker-shaped on the second tube. About the rocker-shaped bearing, the force can be defined with which presses the end claw on the first tube.
  • the distance or lever arm between the projection and the point-shaped contact surface is greater than the distance or lever arm between the end-side claw and the projection.
  • a lever force acts on the end claw and thereby locks particularly secure the first connecting element on the first tube.
  • the distance between the projection and the point-shaped contact surface preferably corresponds to at least 1.5 times the distance between the end-side claw and the projection. More preferably, the distance ratio described above> 2, in particular> 3, preferably> 4.
  • the end claw may have two finger projections.
  • the claw is designed in the form of a fork with two prongs. For further locking of the first connecting element, this can in
  • the clamping spring is preferably tensioned radially between the first tube and the second tube.
  • the height of the clamping spring measured in the radial direction of the first tube preferably exceeds the maximum radial height of the first connecting element between the end-side claw and the projection in the relaxed, unassembled state of the first connecting element. As a result, the first connecting element is firmly clamped between the first tube and the second tube.
  • the clamping spring may have a first abutment portion abutting the first tube and a second abutment portion adjacent to the second tube.
  • the first contact section can not be offset from the second contact section, based on the circumferential direction of the first pipe.
  • the first abutment portion is formed offset in the circumferential direction of the first tube to the second abutment portion.
  • the first tube, the second tube and / or the first connecting element are / is formed from sheet metal.
  • a particularly cost-effective production of the exhaust panel is achieved.
  • a plurality of further connecting elements can be arranged between the first tube and the second tube.
  • the further connecting elements are preferably formed equal to the first connecting element.
  • Fig. 1 exploded view of an exhaust panel
  • Fig. 2 is a plan view of the end opening of a part of
  • Fig. 3 is a side view of the part of the exhaust panel of Fig. 2;
  • Fig. 4 is a sectional view taken along the plane IV - IV of Fig. 3; 5 shows a part of the exhaust cover according to the detail V of FIG. 4;
  • FIG. 6 is a side view of a first connecting element of
  • FIG. 7 shows a rear view of the first connecting element from FIG. 6;
  • Fig. 8 is a plan view of the first connecting element according to the figures
  • FIG. 3 shows a side view of the exhaust cover 10 for illustrating the sectional plane IV-IV of FIG. 4.
  • the punctiform contact surface 24 is formed by the In particular, the straight fold 26 rests against the curved outer circumferential surface of the first tube 12.
  • the fold between the fold 26 or the point-shaped contact surface 24 and the end-side jaw 22 is the first Connecting element 20a has a projection 28.
  • the projection 28 forms the bearing point for a lever mechanism of the first connecting element 20a, wherein a short load arm A is formed between the projection 28 and the end claw 22.
  • a force arm B is provided between the projection 28 and the point contact surface 24 is formed.
  • B is larger A.
  • gt B is more than twice, in particular more than three times, preferably more than four times, A.
  • the end-side jaw 22 can "claw" particularly firmly into the first tube 12.
  • Fig. 7 shows a rear view of the first connecting element 20a. From Fig. 7 it is seen that the clamping spring 30 has a first abutment portion 32 and a second abutment portion 34.
  • the second abutment portion 34 is with respect to the radial extent of the first tube 12 and the second tube 14 (see Fig. 2) from the first abutment portion 32 radially spaced. Furthermore, the second abutment portion is spaced from the first abutment portion with respect to the circumferential direction of the first tube 12 and the second tube 14 (see FIG. 2).
  • FIG. 8 shows a plan view of the first connection element 20a.
  • Fig. 8 illustrates that the first abutment portion 32 is formed transversely to the longitudinal axis 36 of the main body 38 of the first connecting member 20a. In the direction of the longitudinal axis 36, the first connecting element 20a is thus designed to save space.
  • FIG. 9 shows an isometric view of the first connection element 20a.
  • the end-side jaw 22 has a plurality of finger projections 40a, 40b, in particular at least one finger projection 40a, 40b, preferably two finger projections 40a, 40b.
  • the at least one finger projection 40a, 40b may be sharp-edged or rounded.
  • the straight, line-shaped fold 26 of the first connecting element 20a can be seen, which forms a punctiform contact surface 24 (see FIG. 5), resting against the curved outer surface of the first tube 12 (see FIG. 5).
  • the invention in summary relates to an exhaust cover 10 for an exhaust system of a motor vehicle.
  • the exhaust cover 10 has at least one first connection element 20 a, which is clamped between a first tube 12 and a second tube 14 of the exhaust panel 10.
  • the first tube 12 is preferably in the form of a tailpipe, the second tube 14 in the form of an exhaust panel.
  • the exhaust cover can be designed in several parts.
  • the exhaust cover preferably has a tubular inner part 16, which is held on the tailpipe via the at least one first connecting element 20a.
  • the first connecting element 20a claws on, ie by means of a lever mechanism on the first tube 12 fixed.
  • a load arm of the lever mechanism The length of the force arm is very precisely defined according to the invention, since the end of the force arm rests with a punctiform contact surface 24 on the first tube 12.
  • a first abutment portion 32 of a clamping spring 30 may be formed offset from the longitudinal extent of a main body 38 of the first connecting member 20 a in order to save space in the direction of the longitudinal extent of the main body 38.

Landscapes

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

Abstract

L'invention concerne un habillage de pot d'échappement (10) pour un système d'échappement d'un véhicule automobile. L'habillage de pot d'échappement (10) comprend au moins un premier élément de liaison (20a) qui est serré entre un premier tube (12) et un deuxième tube (14) de l'habillage de pot d'échappement (10). Le premier tube (12) se présente de préférence sous la forme d'un tube arrière d'échappement et le deuxième tube (14) se présente sous la forme d'un enjoliveur d'échappement. L'enjoliveur d'échappement peut comporter plusieurs parties. De préférence, l'enjoliveur d'échappement comprend une partie intérieure tubulaire (16) qui est retenue sur le tube arrière d'échappement par le biais dudit au moins un premier élément de liaison (20a). Le premier élément de liaison (20a) s'accroche au premier tube (12) par le biais de, c'est-à-dire au moyen d'un mécanisme à levier. Un bras de charge du mécanisme à levier, de distance A, est de préférence plus court qu'un bras de puissance, de distance B. La longueur du bras de puissance est définie de manière très précise selon l'invention car l'extrémité du bras de puissance s'appuie contre le premier tube (12) par une surface de contact ponctuelle. Une première partie d'appui d'un ressort de serrage peut être réalisée de manière décalée par rapport à la direction longitudinale d'un corps principal du premier élément de liaison (20a), afin d'économiser de la place dans la direction longitudinale du corps principal.
EP18718428.8A 2017-04-21 2018-04-16 Habillage de pot d'échappement comprenant un élément de liaison Withdrawn EP3612725A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017206750.0A DE102017206750B4 (de) 2017-04-21 2017-04-21 Auspuffverkleidung mit einem Verbindungselement
PCT/EP2018/059688 WO2018192883A1 (fr) 2017-04-21 2018-04-16 Habillage de pot d'échappement comprenant un élément de liaison

Publications (1)

Publication Number Publication Date
EP3612725A1 true EP3612725A1 (fr) 2020-02-26

Family

ID=62002644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18718428.8A Withdrawn EP3612725A1 (fr) 2017-04-21 2018-04-16 Habillage de pot d'échappement comprenant un élément de liaison

Country Status (4)

Country Link
US (1) US11566556B2 (fr)
EP (1) EP3612725A1 (fr)
DE (1) DE102017206750B4 (fr)
WO (1) WO2018192883A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017214197B4 (de) * 2017-08-15 2021-04-22 Cisma Solutions Aps Anordnung und Verfahren zur Abbremsung der Verschiebung einer Endrohrblende

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19651608C2 (de) * 1996-12-12 1998-10-15 Porsche Ag Doppelwandiges Endrohr für ein Abgasrohr einer Abgasanlage eines Kraftfahrzeugs
DE10233498B4 (de) * 2002-07-24 2012-07-26 Bayerische Motoren Werke Aktiengesellschaft Rohrblende für ein im Heckbereich eines Kraftfahrzeuges endendes Abgasendrohr
US20040084247A1 (en) * 2002-11-04 2004-05-06 Tanekazu Kishida Muffler silencer
CN202402119U (zh) * 2012-01-11 2012-08-29 陈传辉 一种汽车尾喉
SE536756C2 (sv) * 2012-11-22 2014-07-15 Scania Cv Ab Arrangemang för montering av avgasrenande enhet
DE102013017947B4 (de) * 2013-10-29 2015-10-22 Audi Ag Endrohrblende sowie Verfahren zur Montage einer Endrohrblende
CN104806336A (zh) * 2014-01-26 2015-07-29 保隆(安徽)汽车配件有限公司 汽车排气管的尾管
DE102014208722A1 (de) * 2014-05-09 2015-11-12 Bayerische Motoren Werke Aktiengesellschaft Endrohrblende für eine Abgasanlage eines Kraftfahrzeugs sowie Abgasanlage mit einer solchen Endrohrblende
DE202015103869U1 (de) * 2015-07-23 2015-11-16 Cisma Solutions Aps Auspuffrohr-Montageanordnung

Also Published As

Publication number Publication date
US20190316511A1 (en) 2019-10-17
DE102017206750B4 (de) 2020-03-19
WO2018192883A1 (fr) 2018-10-25
US11566556B2 (en) 2023-01-31
DE102017206750A1 (de) 2018-10-25

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