DE2407471A1 - Exhaust pipe shield for car - having metal plates joined by metal loop springs accommodating thermal expansion - Google Patents

Exhaust pipe shield for car - having metal plates joined by metal loop springs accommodating thermal expansion

Info

Publication number
DE2407471A1
DE2407471A1 DE19742407471 DE2407471A DE2407471A1 DE 2407471 A1 DE2407471 A1 DE 2407471A1 DE 19742407471 DE19742407471 DE 19742407471 DE 2407471 A DE2407471 A DE 2407471A DE 2407471 A1 DE2407471 A1 DE 2407471A1
Authority
DE
Germany
Prior art keywords
metal
car
exhaust pipe
plates
thermal expansion
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.)
Pending
Application number
DE19742407471
Other languages
German (de)
Inventor
Bernhard Ilsemann
Joachim Dipl Ing Kuehnel
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19742407471 priority Critical patent/DE2407471A1/en
Publication of DE2407471A1 publication Critical patent/DE2407471A1/en
Pending legal-status Critical Current

Links

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
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust

Landscapes

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

Abstract

The exhaust gases are passed into a silencer, or a catalytic converter via a corrugated tube section. The underside of the engine and silencer are covered by metal plates which screen the underside of the car from exhaust gas heat, and thus reduce the fire hazard from the gases. The metal plates are attached to the engine and silencer using metal clips, while the connection between the plates is by metal spring tags bent into loop springs to act as dampers as well as retaining their elasticity over a range of expansions.

Description

Unterhalb des Auspuffsystems einer Brennkraftmaschine verlaufende Abdeckung Die Erfindung betrifft eine unterhalb des Auspuffsystems einer Brennkraftmaschine, insbesondere einer Fahrzeug-Brennkraftmaschine, verlaufende Abdeckung, die auch als Grasbrandschutz bezeichnet werden kann. Diese Abdeckung hat also die Aufgabe, eine unzulässige Wärmeabgabe vom Auspuffsystem auf darunter befindliche Gebiete zu verhindern. Running beneath the exhaust system of an internal combustion engine Cover The invention relates to a below the exhaust system of an internal combustion engine, in particular a vehicle internal combustion engine, extending cover that also can be described as grass fire protection. This cover has the task of an impermissible heat emission from the exhaust system to the areas below to prevent.

Insbesondere bei in Fahrzeuge eingesetzten Brennkraftmaschinen ist es bekannt, einen Bereich der Auspuffleitungen als Wellrohre auszubilden, um Relativbewegungen zwischen dem Ag gregat einerseits und Schalldämpfern oder Abgas-Konvertern im Zuge der Auspuffleitungensandererseits Rechnung zu tragen.In particular in the case of internal combustion engines used in vehicles it is known to design a region of the exhaust lines as corrugated pipes in order to prevent relative movements between the unit on the one hand and silencers or exhaust gas converters in the train the exhaust pipes on the other hand.

Der Erfindung liegt die Aufgabe zugrunde, eine Abdeckung der eingangs bezeichneten Art zu schaffen, die bei einfachem Aufbau, insbesondere einfachen Montagemitteln, Relativbewegungen zwischen den genannten Teilen Rechnung trägt.The invention is based on the object of a cover of the initially to create the designated type, which with a simple structure, in particular simple assembly means, Relative movements between the parts mentioned takes into account.

Die erfindungsgemäße Lösung dieser Aufgabe ist dadurch gekennzeichnet, daß die Abdeckung eine an der Maschine und eine an einer Auspuffleitung aufgehçngte Platte enthält und beide Platten an ihren einander zugekehrten Enden über zumindest eine gewundene Biegefeder verbunden sind.The inventive solution to this problem is characterized by that the cover one on the machine and one on an exhaust pipe suspended plate and both plates at their ends facing each other are connected via at least one coiled spiral spring.

Ein Ausführungsbeispiel der Erfindung für den Fall eines Grasbrandschutzes bei einem Kraftfahrzeug zeigen die Figuren, und zwar gibt Figur 1 eine Seitenansicht und Figur 2 eine perspektivische Draufsicht auf eine Ausführungsform der erfindungsgemäßen Abdeckung wieder.An embodiment of the invention for the case of grass fire protection in the case of a motor vehicle, the figures show, namely FIG. 1 gives a side view and FIG. 2 is a perspective top view of an embodiment of the invention Cover again.

Betrachtet man zunächst Figur 7, so ist von dem Auspuffsystem die gemeinsame Auspuffleitung 1 mit dem als nachgiebiges Well-2 rohr ausgebildeten Bereich/sowie dem Abgaskonverter 3 angedeutet. Die Abgasleitung 1 geht in üblicher Weise von der Maschine 4 des Fahrzeugs ab. Im übrigen setzt sich die Auspuffleitung 1 hinter dem Konverter 3 fort über bekannte und daher nicht dargestellte Einrichtungen.If one looks first at FIG. 7, the exhaust system is the common exhaust line 1 with the area designed as a flexible corrugated 2 pipe / as well as the exhaust gas converter 3 indicated. The exhaust pipe 1 goes in the usual way from the Machine 4 of the vehicle. In addition, the exhaust line 1 is behind the Converter 3 continues via known and therefore not shown devices.

Unterhalb des Auspuffsystems verläuft die aus den beiden Platten 5 und 6 bestehende Abdeckung; die beiden Platten sind bei 7 bzw. 8 an dem Aggregat 4 bzw. an dem Konverter 3 aufgehängt.The one from the two plates 5 runs below the exhaust system and 6 existing coverage; the two plates are at 7 and 8 on the unit 4 or suspended from the converter 3.

Im Bereich ihres zugekehrten Endes besitzt die Platte 6 keine besondere Aufhängung, vielmehr wird diese durch in diesem Ausfilbrungsbeispiel eine gewundene biegefeder 9 aus bandförmigem Material ersetzt. Die Biegefeder 9 trägt infolge ihrer Elastizität zugleich Relativbewegungen zwischen diesen beiden Platten Rechnung, die durch Relativbewegungen zwischen Aggregat 4 und Konverter 3 verursacht sind.In the area of its facing end, the plate 6 has no special one Suspension, rather this is a sinuous one in this Ausfilbrungsbeispiel Replaced spiral spring 9 made of strip-shaped material. The spiral spring 9 carries as a result of it Elasticity at the same time relative movements between these two plates calculation, caused by relative movements between unit 4 and converter 3.

Wie Figur 2 erkennen läßt, können die Enden der 3iegefeder durch Niete verbunden sein mit den beiden Platten 5 und 6.As can be seen in FIG. 2, the ends of the 3 spiral spring can be riveted be connected to the two plates 5 and 6.

Selbstverständlich ist es auch möglich, mehrere derartige Federn vorzusehen. Der Spalt zwischen den einander zugekehrten Enden der Platten 5 und 6 braucht nur so groß zu sein, daß Längsbewegungen der Platten relativ zueinander aufgenommen werden können.It is of course also possible to provide several springs of this type. The gap between the facing ends of the plates 5 and 6 only needs to be so large that longitudinal movements of the plates relative to one another are recorded can be.

Claims (2)

ANSPRÜCHE EXPECTATIONS -1. -1. i 1. jUnterhalb des Auspuffsystems einer Brennkraftmaschine verlaufende Abdeckung, dadurch gekennzeichnet, daß die Abdeckung eine an der Maschine (4) und eine an einer Auæpuffleitung (1) aufgehängte Platte (5, 6) enthält und beide Platten (5, 6) an ihren einander zugekehrten Enden über zumindest eine gewundene Biegefeder (9) verbunden sind.i 1. jUnder the exhaust system of an internal combustion engine Cover, characterized in that the cover is one on the machine (4) and a plate (5, 6) suspended from an exhaust pipe (1) and both plates (5, 6) at their mutually facing ends via at least one coiled spiral spring (9) are connected. 2. Abdeckung nach Anspruch 1, dadurch gekennzeichnet, daß die Biegefeder (9) aus Bandmaterial besteht. 2. Cover according to claim 1, characterized in that the spiral spring (9) consists of strip material. L e e r s e i t eL e r s e i t e
DE19742407471 1974-02-16 1974-02-16 Exhaust pipe shield for car - having metal plates joined by metal loop springs accommodating thermal expansion Pending DE2407471A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742407471 DE2407471A1 (en) 1974-02-16 1974-02-16 Exhaust pipe shield for car - having metal plates joined by metal loop springs accommodating thermal expansion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742407471 DE2407471A1 (en) 1974-02-16 1974-02-16 Exhaust pipe shield for car - having metal plates joined by metal loop springs accommodating thermal expansion

Publications (1)

Publication Number Publication Date
DE2407471A1 true DE2407471A1 (en) 1975-08-28

Family

ID=5907589

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742407471 Pending DE2407471A1 (en) 1974-02-16 1974-02-16 Exhaust pipe shield for car - having metal plates joined by metal loop springs accommodating thermal expansion

Country Status (1)

Country Link
DE (1) DE2407471A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559776A (en) * 1982-09-08 1985-12-24 Honda Giken Kogyo Kabushiki Kaisha Catalytic converter mounting structure for engines
EP0352838A1 (en) * 1988-07-25 1990-01-31 FIAT AUTO S.p.A. Silencer for the exhaust gas of motor vehicle internal combustion engines
WO2005110813A1 (en) * 2004-05-18 2005-11-24 Nemeth, Gianna, Franca Thermal shielding metal sheet with at least one elastic connection
FR2870567A1 (en) * 2004-05-24 2005-11-25 Faurecia Sys Echappement Exhaust line for motor vehicle, has orientation unit orienting displacement of silencer/inlet pipe in direction of stop, in case of displacement of line by impact, to interrupt displacement of line in direction of internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559776A (en) * 1982-09-08 1985-12-24 Honda Giken Kogyo Kabushiki Kaisha Catalytic converter mounting structure for engines
EP0352838A1 (en) * 1988-07-25 1990-01-31 FIAT AUTO S.p.A. Silencer for the exhaust gas of motor vehicle internal combustion engines
US4936412A (en) * 1988-07-25 1990-06-26 Alfa Lancia Industriale S.P.A. Silencer for the exhaust gas of motor vehicle internal combustion engines
WO2005110813A1 (en) * 2004-05-18 2005-11-24 Nemeth, Gianna, Franca Thermal shielding metal sheet with at least one elastic connection
FR2870567A1 (en) * 2004-05-24 2005-11-25 Faurecia Sys Echappement Exhaust line for motor vehicle, has orientation unit orienting displacement of silencer/inlet pipe in direction of stop, in case of displacement of line by impact, to interrupt displacement of line in direction of internal combustion engine

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