EP0708881A1 - Silencer for internal combustion engines, in particular single-cylinder diesel engines - Google Patents

Silencer for internal combustion engines, in particular single-cylinder diesel engines

Info

Publication number
EP0708881A1
EP0708881A1 EP94918499A EP94918499A EP0708881A1 EP 0708881 A1 EP0708881 A1 EP 0708881A1 EP 94918499 A EP94918499 A EP 94918499A EP 94918499 A EP94918499 A EP 94918499A EP 0708881 A1 EP0708881 A1 EP 0708881A1
Authority
EP
European Patent Office
Prior art keywords
baffle plate
muffler
housing
silencer
collar
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.)
Granted
Application number
EP94918499A
Other languages
German (de)
French (fr)
Other versions
EP0708881B1 (en
Inventor
Erich Eder
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.)
Motorenfabrik Hatz GmbH and Co KG
Original Assignee
Motorenfabrik Hatz GmbH and Co KG
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 Motorenfabrik Hatz GmbH and Co KG filed Critical Motorenfabrik Hatz GmbH and Co KG
Publication of EP0708881A1 publication Critical patent/EP0708881A1/en
Application granted granted Critical
Publication of EP0708881B1 publication Critical patent/EP0708881B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • Silencer for an internal combustion engine in particular a single-cylinder diesel engine
  • the invention relates to a muffler for an internal combustion engine, in particular a single-cylinder diesel engine, with a muffler housing which has an inlet opening for the exhaust gas on the cylinder head side and an outlet opening which is assigned a resilient cover arranged on the outside of the muffler housing is.
  • Such silencers are generally chambered and have internals in the form of perforated plates, resonators, linings made of sound absorbent material or the like.
  • the present invention is based on the object of a particularly simple silencer for small diesel To create motors that can be produced at a correspondingly low cost, but is at least equivalent in effectiveness to the known solution.
  • the muffler housing is constructed essentially without internals, partitions or the like, and that the cover is designed as a baffle plate which is mounted in a swinging manner by means of a spring, so that the baffle plate with respect to the outlet opening is kept floating at a short distance from it and that the spring is designed as a leaf spring, to the free end of which the baffle plate is fastened, and the other end of which is connected to the silencer housing at a distance from the outlet opening.
  • a silencer housing cast without partitions can be manufactured particularly cheaply compared to silencers made of welded sheet steel; Instead of complex installations in the muffler housing, only a stowage plate is attached in front of the outlet opening. This can easily be done with a suitable choice of strength or additional attachment of a flywheel with the exhaust vibration z. B. vote at nominal speed.
  • a decisive factor influencing the vibration of the baffle plate is the dimension of the leaf spring, to the free end of which the baffle plate is fastened, so that it can be kept in vibration close to the outlet opening.
  • the leaf spring can also be supported by means of an adjusting screw which is supported in relation to the muffler housing, the effect of which on the leaf spring oscillation being significantly dependent on the location of support and on its adjustment path.
  • the silencer according to the invention consists of only a few components.
  • the sound damper housing is expediently cast as a one-piece housing made of aluminum, preferably with a sand core.
  • the leaf spring with the baffle plate is screwed onto the muffler housing from the outside; Otherwise, the leaf spring carries only a few components, namely the baffle plate and possibly a swing weight, which, however, is further simplified by the or Rivet heads can be formed, with which the storage plate is attached to the leaf spring.
  • FIG. 1 shows a cross section through a section of the muffler housing
  • Fig. 2 is a plan view of the storage plate with leaf spring holder.
  • the silencer housing 1 shows a section of the silencer housing 1 made of cast aluminum with an outlet opening 2 for the exhaust gas.
  • the outlet opening 2 is preferably provided in the top of the muffler housing. It is limited by a projecting collar 3, which is surrounded by a collar-shaped projection 4 at a short distance. The projection 4 projects beyond the collar 3, so that a baffle plate 5 covering the outlet opening 2 is arranged essentially within the projection 4. It is connected by means of a rivet 6 to a leaf spring 7 which is cranked upwards above the projection 4 and screwed to the housing at its other end is.
  • the storage plate 5 is arranged just above the collar 3; it is excited to oscillate by the pulsating exhaust gases in the area of the outlet opening 2.
  • the vibration system consisting of the stowage plate 5, rivet 6 and leaf spring 7 is designed so that the stowage plate vibrates under the action of the pulsating exhaust gases, but without touching the collar 3. It is expedient to coordinate the aforementioned vibration system with the exhaust gas frequency at the nominal engine speed.
  • the top view according to FIG. 2 shows that the leaf spring has a widening 8 at its fastening end, through which two fastening screws 9 are screwed into the switching damper housing.
  • the collar-shaped projection 4 forms a flange with two threaded bores 10; the latter are provided only in the event that 5 different types of exhaust gas compensators are to be attached over the outlet opening instead of a baffle plate.
  • an adjusting screw is indicated, which is seated in a threaded bore of the housing 1 and can be braced against the leaf spring 7 from below. In this way it is possible to influence the natural vibration of the vibration system explained above.

Abstract

A silencer for a single-cylinder diesel engine has a housing with an exhaust fume inlet at the side of the cylinder head and an outlet (2) to which is associated a baffle plate (5) mounted so as to vibrate and whose surface corresponds to at least the cross-section of the outlet (2). The baffle plate (5) is secured to the free end of a leaf spring whose other end is linked to the housing (1) of the silencer.

Description

Schalldämpfer für Verbrennungsmotor, insbeson¬ dere Einzylinder-DieselmotorSilencer for an internal combustion engine, in particular a single-cylinder diesel engine
Die Erfindung betrifft einen Schalldämpfer für einen Verbrennungsmotor, insbesondere Einzy¬ linder-Dieselmotor, mit einem Schalldämpferge¬ häuse, welches eine zylinderkopfseitige Ein¬ trittsöffnung für das Abgas und eine Aus¬ trittsöffnung aufweist, welcher eine federnde, auf der Außenseite des Schalldämpfergehäuses angeordnete Abdeckung zugeordnet ist.The invention relates to a muffler for an internal combustion engine, in particular a single-cylinder diesel engine, with a muffler housing which has an inlet opening for the exhaust gas on the cylinder head side and an outlet opening which is assigned a resilient cover arranged on the outside of the muffler housing is.
Derartige Schalldämpfer sind in der Regel ge- kammert und besitzen Einbauten in Form von Lochblechen, Resonatoren, Auskleidungen aus Schallschluckstoff oder dgl.Such silencers are generally chambered and have internals in the form of perforated plates, resonators, linings made of sound absorbent material or the like.
Bei einem aus der deutschen Offenlegungs- schrift 14 76 582 bekannten Schalldämpfer der eingangs genannten Art mit einem geteilten Schalldämpfergehäuse ist der Austrittsöffnung eine federnde Abdeckung zugeordnet. Dabei han¬ delt es sich um eine dünne, blattförmige Zunge mit möglichst geringer Steifheit, so daß deren Auslenkung durch einen starren, entsprechend der voll ausgelenkten Form der Zunge vorge¬ formten Anschlag begrenzt werden muß.In the case of a silencer of the type mentioned at the outset, which is known from German Offenlegungsschrift 14 76 582, with a split silencer housing, the outlet opening is assigned a resilient cover. This is a thin, leaf-shaped tongue with as little stiffness as possible, so that its deflection must be limited by a rigid stop preformed according to the fully deflected shape of the tongue.
Der vorliegenden Erfindung liegt demgegenüber die Aufgabe zugrunde, einen besonders einfach aufgebauten Schalldämpfer für Kleindiesel- motoren zu schaffen, der mit entsprechend niedrigen Kosten hergestellt werden kann, aber in seiner Wirksamkeit der bekannten Lösung zumindest gleichwertig ist.The present invention is based on the object of a particularly simple silencer for small diesel To create motors that can be produced at a correspondingly low cost, but is at least equivalent in effectiveness to the known solution.
Erfindungsgemäß wird diese Aufgabe dadurch ge¬ löst, daß das Schalldämpfergehäuse im wesent¬ lichen ohne Einbauten, Zwischenwände oder dgl. ausgebildet ist, daß die Abdeckung als eine mittels einer Feder schwingend gelagerte Stau¬ platte ausgebildet ist, so daß die Stauplatte bezüglich der Austrittsöffnung mit geringem Abstand von dieser schwebend gehalten ist und daß die Feder als Blattfeder ausgebildet ist, an derem freien Ende die Stauplatte befestigt ist, und deren anderes Ende in einer Entfer¬ nung von der Austrittsöffnung mit dem Schall¬ dämpfergehäuse verbunden ist.According to the invention, this object is achieved in that the muffler housing is constructed essentially without internals, partitions or the like, and that the cover is designed as a baffle plate which is mounted in a swinging manner by means of a spring, so that the baffle plate with respect to the outlet opening is kept floating at a short distance from it and that the spring is designed as a leaf spring, to the free end of which the baffle plate is fastened, and the other end of which is connected to the silencer housing at a distance from the outlet opening.
Hierbei kommt es entscheidend darauf an, daß niedrige Herstellungskosten sowohl auf selten des Schalldämpfergehäuses, als auch auf selten der für die unmittelbare Dämpfungswirkung verantwortlichen Lösungsmerkmale erzielt werden. Ein ohne Zwischenwände gegossenes Schalldämpfergehäuse kann besonders billig hergestellt werden, verglichen mit Schalldämpfern aus geschweißtem Stahlblech; statt aufwendiger Einbauten im Schalldämpfergehäuse ist vor der Austrittsöff¬ nung lediglich eine Stauplatte angebracht. Diese läßt sich durch geeignete Wahl ihrer Stärke bzw. durch zusätzliche Anbringung einer Schwungmasse leicht mit der Abgasschwingung z. B. bei Nenndrehzahl abstimmen. Außerdem ist eine maßgebliche Einflußgröße für die Schwin¬ gung der Stauplatte die Dimension!erung der Blattfeder, an derem freien Ende die Stau¬ platte befestigt ist, so daß sie dicht vor der Austrittsöffnung in Schwingung gehalten werden kann. Sie liegt also nicht auf dem Kragen der Austrittsöffnung auf, sondern schwebt mit ge¬ ringem Abstand über diesem. Zudem kann die Blattfeder noch mittels einer gegenüber dem Schalldämpfergehäuse abgestützten Stell¬ schraube unterstützt werden, wobei es für de¬ ren Wirkung auf die Blattfederschwingung ma߬ geblich auf den Unterstützungsort und auf de¬ ren Verstellweg ankommt.It is crucial here that low manufacturing costs are achieved both rarely on the muffler housing and rarely on the solution features responsible for the direct damping effect. A silencer housing cast without partitions can be manufactured particularly cheaply compared to silencers made of welded sheet steel; Instead of complex installations in the muffler housing, only a stowage plate is attached in front of the outlet opening. This can easily be done with a suitable choice of strength or additional attachment of a flywheel with the exhaust vibration z. B. vote at nominal speed. In addition, a decisive factor influencing the vibration of the baffle plate is the dimension of the leaf spring, to the free end of which the baffle plate is fastened, so that it can be kept in vibration close to the outlet opening. It does not lie on the collar of the outlet opening, but hovers at a small distance above it. In addition, the leaf spring can also be supported by means of an adjusting screw which is supported in relation to the muffler housing, the effect of which on the leaf spring oscillation being significantly dependent on the location of support and on its adjustment path.
Der erfindungsgemäße Schalldämpfer besteht aus nur wenigen Bauteilen. Das Schalldämpferge¬ häuse wird zweckmäßig als einteiliges Gehäuse aus Aluminium, bevorzugt mit einem Sandkern gegossen. Die Blattfeder mit der Stauplatte wird von außen auf das Schalldämpfergehäuse aufgeschraubt; im übrigen trägt die Blattfeder nur wenige Bauteile, nämlich die Stauplatte und ggfs. ein Schwunggewicht, welches aber in weiterer Vereinfachung durch den oder die Nietköpfe gebildet sein kann, mit welchen die Stauplatte an der Blattfeder befestigt ist.The silencer according to the invention consists of only a few components. The sound damper housing is expediently cast as a one-piece housing made of aluminum, preferably with a sand core. The leaf spring with the baffle plate is screwed onto the muffler housing from the outside; Otherwise, the leaf spring carries only a few components, namely the baffle plate and possibly a swing weight, which, however, is further simplified by the or Rivet heads can be formed, with which the storage plate is attached to the leaf spring.
Versuche haben gezeigt, daß mit diesen einfa¬ chen Mitteln die für gewerbliche und industri¬ elle Antriebe angestrebten Lärmschutzwerte eingehalten werden können.Tests have shown that these simple means can meet the noise protection values aimed for in commercial and industrial drives.
Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung erläutert. Es zeigtAn exemplary embodiment of the invention is explained below with reference to the drawing. It shows
Fig. 1 einen Querschnitt durch einen Ab¬ schnitt des Schalldämpfergehäuses und1 shows a cross section through a section of the muffler housing and
Fig. 2 eine Draufsicht auf die Stauplatte mit Blattfederhalterung.Fig. 2 is a plan view of the storage plate with leaf spring holder.
Fig. 1 zeigt einen Abschnitt des Schalldäm¬ pfergehäuses 1 aus Aluminiumguß mit einer Aus- trittsöffnung 2 für das Abgas. Die Austritts¬ öffnung 2 ist bevorzugt in der Oberseite des Schalldämpfergehäuses vorgesehen. Sie ist be¬ grenzt durch einen vorspringenden Kragen 3, der mit geringem Abstand von einem kragenför- migen Vorsprung 4 umgeben ist. Der Vorsprung 4 überragt den Kragen 3, so daß eine die Aus- trittsöffnung 2 überdeckende Stauplatte 5 im wesentlichen innerhalb des Vorsprungs 4 ange¬ ordnet ist. Sie ist mittels eines Niets 6 mit einer Blattfeder 7 verbunden, welche oberhalb des Vorsprungs 4 nach oben gekröpft und mit ihrem anderen Ende mit dem Gehäuse verschraubt ist. Die Stauplatte 5 ist dicht oberhalb des Kragens 3 angeordnet; sie wird durch die pul¬ sierenden Abgase im Bereich der Austrittsöff¬ nung 2 zum Schwingen angeregt. Das aus Stau¬ platte 5, Niet 6 und Blattfeder 7 bestehende Schwingungssystem ist so ausgelegt, daß die Stauplatte unter der Einwirkung der pulsieren¬ den Abgase fibriert, ohne jedoch den Kragen 3 zu berühren. Zweckmäßig ist dabei eine Abstim¬ mung des genannten Schwingungssystems mit der Abgasfrequenz bei Nenndrehzahl des Motors.1 shows a section of the silencer housing 1 made of cast aluminum with an outlet opening 2 for the exhaust gas. The outlet opening 2 is preferably provided in the top of the muffler housing. It is limited by a projecting collar 3, which is surrounded by a collar-shaped projection 4 at a short distance. The projection 4 projects beyond the collar 3, so that a baffle plate 5 covering the outlet opening 2 is arranged essentially within the projection 4. It is connected by means of a rivet 6 to a leaf spring 7 which is cranked upwards above the projection 4 and screwed to the housing at its other end is. The storage plate 5 is arranged just above the collar 3; it is excited to oscillate by the pulsating exhaust gases in the area of the outlet opening 2. The vibration system consisting of the stowage plate 5, rivet 6 and leaf spring 7 is designed so that the stowage plate vibrates under the action of the pulsating exhaust gases, but without touching the collar 3. It is expedient to coordinate the aforementioned vibration system with the exhaust gas frequency at the nominal engine speed.
Die Draufsicht gemäß Fig. 2 zeigt, daß die Blattfeder an ihrem Befestigungsende eine Ver¬ breiterung 8 besitzt, durch welche zwei Befe¬ stigungsschrauben 9 in das Schal1dämpferge- häuse eingeschraubt sind. Der kragenförmige Vorsprung 4 bildet einen Flansch mit zwei Ge¬ windebohrungen 10; letztere sind nur für den Fall vorgesehen, daß anstelle einer Stauplatte 5 andersartige Abgaskompensatoren über der Austrittsöffnung befestigt werden sollen.The top view according to FIG. 2 shows that the leaf spring has a widening 8 at its fastening end, through which two fastening screws 9 are screwed into the switching damper housing. The collar-shaped projection 4 forms a flange with two threaded bores 10; the latter are provided only in the event that 5 different types of exhaust gas compensators are to be attached over the outlet opening instead of a baffle plate.
Mit der Achse 11 in Fig. 1 und dem strichlier- ten Querschnitt 12 ist eine Stellschraube an¬ gedeutet, welche in einer Gewindebohrung des Gehäuses 1 sitzt und von unten gegen die Blattfeder 7 verspannbar ist. Auf diese Weise besteht die Möglichkeit, die Eigenschwingung des oben erläuterten Schwingungssystems zu be¬ einflussen. With the axis 11 in FIG. 1 and the dashed cross section 12, an adjusting screw is indicated, which is seated in a threaded bore of the housing 1 and can be braced against the leaf spring 7 from below. In this way it is possible to influence the natural vibration of the vibration system explained above.

Claims

Patentansprüche Claims
1. Schalldämpfer für Verbrennungsmotor, ins¬ besondere Einzylinder-Dieselmotor, mit einem Schalldämpfergehäuse, welches eine zylinderkopfseitige Eintrittsöffnung für das Abgas und eine Austrittsöffnung (2) aufweist, welcher eine federnde, auf der Außenseite des Schalldämpfergehäuses (1) angeordnete Abdeckung zugeordnet ist, dadurch gekennzeichnet, daß das Schalldämpfergehäuse im wesentlichen ohne Einbauten, Zwischen¬ wände oder dgl. ausgebildet ist, daß die Abdeckung als eine mittels einer Feder schwingend gelagerte Stau¬ platte (5) ausgebildet ist, so daß die Stauplatte (5) bezüglich der Austrittsöffnung (2) mit geringem Abstand von dieser schwebend gehalten ist und daß die Feder als Blattfeder ausgebil¬ det ist, an derem freien Ende die Stauplatte (5) befestigt ist, und deren anderes Ende in einer Entfernung von der Austrittsöffnung (2.) mit dem Schalldämpfergehäuse (1) verbunden ist. 1. Muffler for an internal combustion engine, in particular a single-cylinder diesel engine, with a muffler housing which has an inlet opening for the exhaust gas on the cylinder head and an outlet opening (2) which is assigned a resilient cover arranged on the outside of the muffler housing (1) characterized in that the muffler housing is constructed essentially without internals, partitions or the like, and that the cover is designed as a baffle plate (5) which is mounted in a swinging manner by means of a spring, so that the baffle plate (5) with respect to the outlet opening (2nd ) is kept floating at a short distance from it and that the spring is designed as a leaf spring, at the free end of which the baffle plate (5) is attached, and the other end of which is at a distance from the outlet opening (2.) with the silencer housing ( 1) is connected.
2. Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, daß die Stauplatte (5) nur in ihrem Zen¬ trum mit der Blattfeder (7) verbunden ist.2. Silencer according to claim 1, characterized in that the baffle plate (5) is connected only in its center with the leaf spring (7).
3. Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, daß an der Stauplatte (5) eine mit der Abgasschwingung abgestimmte Schwungmasse befestigt ist.3. Muffler according to claim 1, characterized in that on the baffle plate (5) is matched with the exhaust gas oscillating flywheel.
4. Schalldämpfer nach Anspruch 3, dadurch gekennzeichnet, daß die Schwungmasse im Zentrum der Stau¬ platte (5) befestigt ist.4. Silencer according to claim 3, characterized in that the flywheel is fixed in the center of the storage plate (5).
5. Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, daß die Austrittsöffnung durch einen nach außen vorspringenden Kragen (3) des Schalldämpfergehäuses (1) begrenzt wird.5. Muffler according to claim 1, characterized in that the outlet opening is limited by an outwardly projecting collar (3) of the muffler housing (1).
6. Schalldämpfer nach Anspruch 5, dadurch gekennzeichnet, daß der Kragen (3) mit Abstand von einem kragenförmigen Vorsprung (4) umgeben ist, welcher den Kragen (3) überragt. 6. Silencer according to claim 5, characterized in that the collar (3) is surrounded at a distance by a collar-shaped projection (4) which projects beyond the collar (3).
7. Schalldämpfer nach Anspruch 6, dadurch gekennzeichnet, daß die Stauplatte (5) größer ist als der Kragen (3), aber kleiner als der Vorsprung (4), so daß sie seitlich vom Vorsprung (4) umschlossen ist.7. Silencer according to claim 6, characterized in that the baffle plate (5) is larger than the collar (3), but smaller than the projection (4), so that it is laterally enclosed by the projection (4).
8. Schalldämpfer nach Anspruch 7, dadurch gekennzeichnet, daß der Vorsprung (4) die Stauplatte (5) überragt.8. Silencer according to claim 7, characterized in that the projection (4) projects above the baffle plate (5).
9. Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, daß die Blattfeder (7) mit Abstand von der Außenseite des Schalldämpfergehäuses (1) verläuft und außerhalb ihres Befestigungs- punktes mit dem Schalldämpfergehäuse (1) durch eine Stellschraube (11, 12) zur Beeinflussung ihrer Federeigenschaften unterstützt wird, welche in eine Gewinde¬ bohrung des Schalldämpfergehäuses (1) ver¬ stellbar aufgenommen ist. 9. Muffler according to claim 1, characterized in that the leaf spring (7) runs at a distance from the outside of the muffler housing (1) and outside of its fastening point with the muffler housing (1) by an adjusting screw (11, 12) to influence it Spring properties are supported, which is adjustably accommodated in a threaded bore of the muffler housing (1).
EP94918499A 1993-07-15 1994-07-05 Silencer for internal combustion engines, in particular single-cylinder diesel engines Expired - Lifetime EP0708881B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4323642A DE4323642A1 (en) 1993-07-15 1993-07-15 Muffler for internal combustion engines, in particular single-cylinder diesel engines
DE4323642 1993-07-15
PCT/IB1994/000200 WO1995002754A1 (en) 1993-07-15 1994-07-05 Silencer for internal combustion engines, in particular single-cylinder diesel engines

Publications (2)

Publication Number Publication Date
EP0708881A1 true EP0708881A1 (en) 1996-05-01
EP0708881B1 EP0708881B1 (en) 1997-01-15

Family

ID=6492829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94918499A Expired - Lifetime EP0708881B1 (en) 1993-07-15 1994-07-05 Silencer for internal combustion engines, in particular single-cylinder diesel engines

Country Status (6)

Country Link
US (1) US5747753A (en)
EP (1) EP0708881B1 (en)
JP (1) JPH09500187A (en)
AU (1) AU6980194A (en)
DE (2) DE4323642A1 (en)
WO (1) WO1995002754A1 (en)

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GB0327401D0 (en) * 2003-11-25 2003-12-31 Emmett Malcolm D Silencer for exhaust systems
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EP1939416B1 (en) * 2006-12-29 2009-08-19 Magneti Marelli S.p.A. Variable geometry muffler fo an exhaust system of an internal combustion engine
KR101290212B1 (en) * 2007-01-26 2013-07-31 포레시아 씨스뗌 데샤쁘망 Valve for a motor vehicle exhaust silencer and silencer comprising a valve of this type

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Also Published As

Publication number Publication date
EP0708881B1 (en) 1997-01-15
US5747753A (en) 1998-05-05
DE59401617D1 (en) 1997-02-27
JPH09500187A (en) 1997-01-07
DE4323642A1 (en) 1995-01-19
AU6980194A (en) 1995-02-13
WO1995002754A1 (en) 1995-01-26

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