EP0574605A1 - Filter-silencer - Google Patents

Filter-silencer Download PDF

Info

Publication number
EP0574605A1
EP0574605A1 EP92110222A EP92110222A EP0574605A1 EP 0574605 A1 EP0574605 A1 EP 0574605A1 EP 92110222 A EP92110222 A EP 92110222A EP 92110222 A EP92110222 A EP 92110222A EP 0574605 A1 EP0574605 A1 EP 0574605A1
Authority
EP
European Patent Office
Prior art keywords
filter
damping
elements
silencer according
segments
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
EP92110222A
Other languages
German (de)
French (fr)
Other versions
EP0574605B1 (en
Inventor
Rudolf Ricanek
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.)
ABB Asea Brown Boveri Ltd
ABB AB
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Priority to EP92110222A priority Critical patent/EP0574605B1/en
Priority to DE59207544T priority patent/DE59207544D1/en
Priority to PL93299311A priority patent/PL171061B1/en
Priority to JP14338693A priority patent/JP3428684B2/en
Priority to RU93049106A priority patent/RU2106539C1/en
Priority to KR1019930011004A priority patent/KR100266913B1/en
Priority to CN93106977A priority patent/CN1031011C/en
Publication of EP0574605A1 publication Critical patent/EP0574605A1/en
Application granted granted Critical
Publication of EP0574605B1 publication Critical patent/EP0574605B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1227—Flow throttling or guiding by using multiple air intake flow paths, e.g. bypass, honeycomb or pipes opening into an expansion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/14—Combined air cleaners and silencers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning

Definitions

  • the invention relates to a filter silencer on the suction side of a compressor with a plurality of annular damping elements, each of which merges into a curved guide element on its inner circumference.
  • Such silencers are known. They are used to dampen the operation of the compressor from e.g. Exhaust gas turbochargers or gas turbine systems occurring sound waves. For this purpose, they have a plurality of damping elements which are arranged in the interior of the muffler at certain distances from one another.
  • the damping elements usually consist of a supporting part and a damping part made of damping material.
  • the sucked-in air flows through a filter arranged on the circumference of the muffler into the interior of the muffler and past the damping parts to the compressor, from which sound waves emanate against the direction of flow and thus pressure peaks and depressions occur. Sound absorption is ensured by the fact that the air flowing past in the pressure peaks is pressed into the damping material and sucked out of this material in the pressure valleys.
  • the damping part thus acts as a buffer, which to a certain extent compensates for the pressure difference between the pressure valleys and pressure peaks, thereby reducing the sound wave amplitudes.
  • a disk-shaped damping element which consists of a support part, the on both sides of the support part arranged damping parts and the grid parts fastened with rivets.
  • the damping parts are clamped between the grid parts and the support part has a continuous middle part and recesses on both sides.
  • the disk-ring-shaped damping element as also shown in the patent specification CH 594 139, merges into a curved guide element on its inner circumference, so that the radially entering flow is deflected in the intended outflow direction and losses due to swirling are thereby avoided.
  • Damping elements are known, which consist of several segments lined up in the circumferential direction.
  • the damping elements are tensioned by a tie rod, which fixes them to each other with the help of spacer sleeves and holds them in the silencer housing.
  • the invention tries to avoid all these disadvantages. It is therefore an object of the invention to provide a muffler of the type mentioned, which forms a stable system even with high vibrations and which is characterized by lower production costs with improved damping function compared to the known mufflers. Furthermore, it is based on the additional task of designing the silencer in such a way that the filter can be easily cleaned without dismantling the filter frame.
  • the base body of the filter silencer is designed as a cast monoblock
  • the damping segments are fixed to the support part by means of radially cast-on ribs with grooves
  • the filter frame consists of a removable perforated plate or a plurality of removable perforated plates which are connected to one another by connecting elements, and which Secure the damping segments radially against falling out.
  • the advantages of the invention can be seen, among other things, in the simplification of assembly, the reduction in the number of components and improved sound absorption, even at high compressor speeds. It is particularly expedient if the perforated plate has round holes and segment clamp screws or buckles are used as connecting elements.
  • each damping element on the housing wall has a smaller thickness than the other damping elements and each damping element consists of several, preferably four damping segments.
  • the damping segments are preferably disc-shaped, but can also be conical or curved. It is expedient if the inner damping elements merge into curved guide elements on their inner circumference.
  • plastic filter material is advantageously used.
  • the base body is designed as a cast monoblock. It was made by chill casting.
  • the muffler consists of a with the compressor z. B. an exhaust gas turbocharger firmly connected muffler housing 1, arranged in the interior of the housing 1, substantially disc-shaped damping elements 2 and 2a and the filter 5 arranged on the circumference of the housing 1.
  • the damping elements 2 are formed on their inner circumference as curved guide elements 4, so that Vortex losses in the emerging partial flows are largely avoided.
  • the disk-shaped outer damping elements 2a located on the housing wall generally have only half the depth of the damping elements 2 in the axial direction and have no guide elements 4.
  • the damping elements 2 and 2a each consist of four damping segments 3, as can be seen from FIG. 3.
  • a damping segment 3 is formed from two shaped and punched perforated sheet metal halves which carry the damping material.
  • the assembly of the damping segments 3 is very simple and can be seen from FIG. 3.
  • the damping segments 3 are pushed radially into the base body and fixed by the radially arranged grooves 6.
  • the filter 5 braces and secures the damping segments 3 in the radial direction. This results in comparison to the state of the Technology requires less installation work, since no riveting of the damping segments is necessary.
  • tension rods are no longer required for bracing the damper segments 3, since the base body consists of one part and the silencer as a whole is a very stable system, even with very high vibrations.
  • the spacing between the damping elements 2 by spacer sleeves, which is necessary according to the prior art, is also dispensed with, so that the assembly effort is reduced again.
  • Another advantage results from the design of the filter frame.
  • This is formed by a perforated plate 7 with round holes or, in another embodiment according to FIG. 4, by a plurality of perforated plate parts 7 with round holes, which are connected to one another by segment clamp screws 8.
  • the round holes in the perforated plate 7 guarantee, compared to the perforated plates with square holes previously used, an enlarged transverse passage area, which leads to a reduction in the pressure losses in the filter.
  • Plastic is used as the filter material, which is pressed against the filter frame from the outside by a grid 9.
  • the filter material often breaks apart under high vibrations. Larger parts of it can get to the compressor and damage it. This is avoided when using plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)
  • Exhaust Silencers (AREA)

Abstract

In a filter silencer on the intake side of a compressor, with a plurality of annular silencing elements (2) and (2a) consisting of segments butted in a circumferential direction, the base body is designed as a cast monobloc, the silencing segments are fixed on the support part by means of ribs which are cast integrally and radially and have grooves, and the filter frame consists of a perforated plate or a plurality of detachable perforated plate halves connected to one another by means of connection elements. The advantages of the invention comprise, inter alia, simplified assembly and a reduction in the number of components and in the production costs, combined with improved silencing even for higher-frequency excitation. <IMAGE>

Description

Technisches GebietTechnical field

Die Erfindung betrifft einen Filterschalldämpfer auf der Ansaugseite eines Verdichters mit mehreren ringförmigen Dämpfungselementen, welche an ihrem Innenumfang jeweils in ein gekrümmtes Leitelement übergehen.The invention relates to a filter silencer on the suction side of a compressor with a plurality of annular damping elements, each of which merges into a curved guide element on its inner circumference.

Stand der TechnikState of the art

Derartige Schalldämpfer sind bekannt. Sie dienen der Dämpfung der beim Betrieb des Verdichters von z.B. Abgasturboladern oder Gasturbinenanlagen auftretenden Schallwellen. Zu diesem Zweck weisen sie eine Mehrzahl von Dämpfungselementen auf, welche im Innenraum des Schalldämpfers in bestimmten Abständen voneinander angeordnet sind. Die Dämpfungselemente bestehen in der Regel aus einem Tragteil und einem Dämpfungsteil aus dämpfenden Material.Such silencers are known. They are used to dampen the operation of the compressor from e.g. Exhaust gas turbochargers or gas turbine systems occurring sound waves. For this purpose, they have a plurality of damping elements which are arranged in the interior of the muffler at certain distances from one another. The damping elements usually consist of a supporting part and a damping part made of damping material.

Die angesaugte Luft strömt über ein am Umfang des Schalldämpfers angeordnetes Filter in den Innenraum des Schalldämpfers und an den Dämpfungsteilen vorbei zum Verdichter, von dem entgegen der Strömungsrichtung Schallwellen ausgehen und somit Druckberge und Drucktäler auftreten. Die Schalldämpfung wird dadurch gewährleistet, dass bei den Druckbergen die vorbeiströmende Luft in das Dämpfungsmaterial hineingedrückt und bei den Drucktälern aus diesem Material wieder herausgesaugt wird. Somit wirkt das Dämpfungsteil als Puffer, der in einem bestimmten Umfang den Druckunterschied zwischen den Drucktälern und Druckbergen ausgleicht und dadurch die Schallwellenamplituden reduziert.The sucked-in air flows through a filter arranged on the circumference of the muffler into the interior of the muffler and past the damping parts to the compressor, from which sound waves emanate against the direction of flow and thus pressure peaks and depressions occur. Sound absorption is ensured by the fact that the air flowing past in the pressure peaks is pressed into the damping material and sucked out of this material in the pressure valleys. The damping part thus acts as a buffer, which to a certain extent compensates for the pressure difference between the pressure valleys and pressure peaks, thereby reducing the sound wave amplitudes.

In der Patentschrift CH 593 426 wird ein scheibenringförmiges Dämpfungselement beschrieben, welches aus einem Tragteil, den auf beiden Seiten des Tragteils angeordneten Dämpfungsteilen und den mit Nieten befestigten Gitterteilen besteht. Die Dämpfungsteile sind zwischen den Gitterteilen eingeklemmt und der Tragteil weist einen durchgehenden Mittelteil und auf seinen beiden Seiten Ausnehmungen auf. Das scheibenringförmige Dämpfungselement geht, wie auch in der Patentschrift CH 594 139 dargestellt, an seinem Innenumfang in ein gekrümmtes Leitelement über, so dass die radial eintretende Strömung in die vorgesehene Abströmrichtung umgelenkt wird und dadurch Verluste durch Verwirbelung vermieden werden.In the patent specification CH 593 426 a disk-shaped damping element is described, which consists of a support part, the on both sides of the support part arranged damping parts and the grid parts fastened with rivets. The damping parts are clamped between the grid parts and the support part has a continuous middle part and recesses on both sides. The disk-ring-shaped damping element, as also shown in the patent specification CH 594 139, merges into a curved guide element on its inner circumference, so that the radially entering flow is deflected in the intended outflow direction and losses due to swirling are thereby avoided.

Bekannt sind Dämpfungselemente, welche aus mehreren in Umfangsrichtung aneinandergereihten Segmenten bestehen. Die Dämpfungselemente werden durch einen Zuganker verspannt, der sie mit Hilfe von Abstandshülsen zueinander fixiert und im Schalldämpfergehäuse festhält.Damping elements are known, which consist of several segments lined up in the circumferential direction. The damping elements are tensioned by a tie rod, which fixes them to each other with the help of spacer sleeves and holds them in the silencer housing.

Diese Konstruktionen sind mit einigen Nachteilen behaftet. Bei sehr hohen Vibrationen erweisen sich die oben beschriebenen Schalldämpfer bei höherfrequenten Anregungen als ein labiles System und sind daher nicht unbeschränkt einsetzbar. Da die Schalldämpfer aus einer Vielzahl von Einzelteilen bestehen, ergibt sich ein hoher Montageaufwand. Ausserdem können sich Dämpfungsteile durch Druck und Wärmestösse lösen und auffasern.These constructions have some disadvantages. With very high vibrations, the silencers described above prove to be an unstable system with higher-frequency excitations and can therefore not be used without restriction. Since the silencers consist of a large number of individual parts, the assembly effort is high. In addition, damping parts can loosen and unravel due to pressure and thermal shock.

Darstellung der ErfindungPresentation of the invention

Die Erfindung versucht all diese Nachteile zu vermeiden. Es ist deshalb Aufgabe der Erfindung, einen Schalldämpfer der eingangs genannten Art zu schaffen, welcher auch bei hohen Schwingungen ein stabiles System bildet und welcher sich durch geringere Herstellungskosten bei verbesserter Dämpfungsfunktion gegenüber den bekannten Schalldämpfern auszeichnet. Desweiteren liegt ihr noch die zusätzliche Aufgabe zugrunde, den Schalldämpfer so zu gestalten, dass eine einfache Reinigung des Filters ohne Demontage des Filterrahmens möglich ist.The invention tries to avoid all these disadvantages. It is therefore an object of the invention to provide a muffler of the type mentioned, which forms a stable system even with high vibrations and which is characterized by lower production costs with improved damping function compared to the known mufflers. Furthermore, it is based on the additional task of designing the silencer in such a way that the filter can be easily cleaned without dismantling the filter frame.

Erfindungsgemäss wird dies dadurch erreicht, dass der Grundkörper des Filterschalldämpfers als ein gegossener Monoblock ausgebildet ist, die Dämpfungssegmente durch strahlenförmig angegossene Rippen mit Nuten auf dem Tragteil fixiert sind und der Filterrahmen aus einem abnehmbaren Lochblech oder mehreren abnehmbaren, mittels Verbindungselementen miteinander verbundenen Lochblechen besteht und die Dämpfungssegmente radial gegen das Herausfallen sichern.According to the invention, this is achieved in that the base body of the filter silencer is designed as a cast monoblock, the damping segments are fixed to the support part by means of radially cast-on ribs with grooves and the filter frame consists of a removable perforated plate or a plurality of removable perforated plates which are connected to one another by connecting elements, and which Secure the damping segments radially against falling out.

Die Vorteile der Erfindung sind unter anderem in der Vereinfachung der Montage, der Reduktion der Bauteileanzahl und einer verbesserten Schalldämpfung auch bei hohen Verdichterdrehzahlen zu sehen. Es ist besonders zweckmässig, wenn das Lochblech runde Löcher aufweist und als Verbindungselemente Segmentklammerschrauben oder Schnallen benutzt werden.The advantages of the invention can be seen, among other things, in the simplification of assembly, the reduction in the number of components and improved sound absorption, even at high compressor speeds. It is particularly expedient if the perforated plate has round holes and segment clamp screws or buckles are used as connecting elements.

Ferner ist es vorteilhaft, wenn die beiden äusseren Dämpfungselemente an der Gehäusewand eine geringere Dicke aufweisen als die anderen Dämpfungselemente und jedes Dämpfungselement aus mehreren, vorzugsweise vier Dämpfungssegmenten besteht. Die Dämpfungssegmente sind vorzugsweise scheibenförmig ausgebildet, können aber auch konisch oder gewölbt sein. Es ist zweckmässig, wenn die inneren Dämpfungselemente an ihrem Innenumfang in gekrümmte Leitelemente übergehen. Schliesslich wird mit Vorteil Filtermaterial aus Kunststoff eingesetzt.Furthermore, it is advantageous if the two outer damping elements on the housing wall have a smaller thickness than the other damping elements and each damping element consists of several, preferably four damping segments. The damping segments are preferably disc-shaped, but can also be conical or curved. It is expedient if the inner damping elements merge into curved guide elements on their inner circumference. Finally, plastic filter material is advantageously used.

Kurze Beschreibung der ZeichnungBrief description of the drawing

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawing, an embodiment of the invention is shown.

Es zeigen:

Fig.1
einen Teillängsschnitt eines Filterschalldämpfers mit scheibenförmigen Dämpfungselementen
Fig.2
eine Teildraufsicht (ohne Filterrahmen)
Fig.3
einen Teilquerschnitt durch den Schalldämpfer in der Ebene unmittelbar vor dem Dämpfungselement
Fig.4
eine Teildraufsicht (mit Filterrahmen)
Es sind nur die für das Verständnis der Erfindung wesentlichen Elemente gezeigt.Show it:
Fig. 1
a partial longitudinal section of a filter silencer with disc-shaped damping elements
Fig. 2
a partial top view (without filter frame)
Fig. 3
a partial cross section through the silencer in the plane immediately in front of the damping element
Fig. 4
a partial top view (with filter frame)
Only the elements essential for understanding the invention are shown.

Weg zur Ausführung der ErfindungWay of carrying out the invention

Bei dem in Fig. 1 gezeigten Filterschalldämpfer ist der Grundkörper als ein gegossener Monoblock ausgebildet. Er wurde mittels Kokillenguss hergestellt.In the filter silencer shown in FIG. 1, the base body is designed as a cast monoblock. It was made by chill casting.

Der Schalldämpfer besteht aus einem mit dem Verdichter z. B. eines Abgasturboladers fest verbundenen Schalldämpfergehäuse 1, den im Innenraum des Gehäuses 1 angeordneten, im wesentlichen scheibenförmigen Dämpfungselementen 2 und 2a und dem am Umfang des Gehäuses 1 angeordneten Filter 5. Die Dämpfungselemente 2 sind an ihrem Innenumfang als gekrümmte Leitelemente 4 ausgebildet, so dass Wirbelverluste der austretenden Teilströme weitgehend vermieden werden. Die an der Gehäusewand befindlichen scheibenförmigen äusseren Dämpfungselemente 2a weisen in axialer Richtung in der Regel nur die Hälfte der Tiefe der Dämpfungselemente 2 auf und besitzen keine Leitelemente 4.The muffler consists of a with the compressor z. B. an exhaust gas turbocharger firmly connected muffler housing 1, arranged in the interior of the housing 1, substantially disc-shaped damping elements 2 and 2a and the filter 5 arranged on the circumference of the housing 1. The damping elements 2 are formed on their inner circumference as curved guide elements 4, so that Vortex losses in the emerging partial flows are largely avoided. The disk-shaped outer damping elements 2a located on the housing wall generally have only half the depth of the damping elements 2 in the axial direction and have no guide elements 4.

Die Dämpfungselemente 2 und 2a bestehen jeweils aus vier Dämpfungssegmenten 3, wie aus Fig. 3 zu entnehmen ist. Ein Dämpfungssegment 3 wird dabei aus zwei geformten und gestanzten Lochblechhälften gebildet, welche das Dämpfungsmaterial tragen.The damping elements 2 and 2a each consist of four damping segments 3, as can be seen from FIG. 3. A damping segment 3 is formed from two shaped and punched perforated sheet metal halves which carry the damping material.

Die Montage der Dämpfungssegmente 3 ist sehr einfach und anhand von Fig. 3 zu erkennen. Die Dämpfungssegmente 3 werden radial in den Grundkörper eingeschoben und durch die strahlenförmig angeordneten Nuten 6 fixiert. Das Filter 5 verspannt und sichert die Dämpfungsegmente 3 in radialer Richtung. Dadurch ergibt sich im Vergleich zum Stand der Technik ein geringerer Montageaufwand, da keine Vernietungen der Dämpfungssegmente nötig sind.The assembly of the damping segments 3 is very simple and can be seen from FIG. 3. The damping segments 3 are pushed radially into the base body and fixed by the radially arranged grooves 6. The filter 5 braces and secures the damping segments 3 in the radial direction. This results in comparison to the state of the Technology requires less installation work, since no riveting of the damping segments is necessary.

Desweiteren werden zum Verspannen der Dämpfersegmente 3 keine Zuganker mehr benötigt, da der Grundkörper aus einem Teil besteht und der Schalldämpfer insgesamt ein sehr stabiles System, auch bei sehr hohen Schwingungen, darstellt. Die nach dem Stand der Technik notwendige Abstandshaltung zwischen den Dämpfungselementen 2 durch Abstandshülsen entfällt ebenfalls, so dass der Montageaufwand nochmals gesenkt wird.Furthermore, tension rods are no longer required for bracing the damper segments 3, since the base body consists of one part and the silencer as a whole is a very stable system, even with very high vibrations. The spacing between the damping elements 2 by spacer sleeves, which is necessary according to the prior art, is also dispensed with, so that the assembly effort is reduced again.

Ein weiterer Vorteil ergibt sich aus der Gestaltung des Filterrahmens. Dieser wird von einem Lochblech 7 mit runden Löchern oder in einer anderen Ausführungsform gemäss Fig. 4 von mehreren Lochblechteilen 7 mit runden Löchern gebildet, welche durch Segmentklammerschrauben 8 miteinander verbunden sind. Durch Entfernung des Gitters 9 kann das Filtermaterial herausgenommen und problemlos ohne Demontage des Filterrahmens gereinigt werden. Die runden Löcher des Lochbleches 7 garantieren im Vergleich zu den bisher verwendeten Lochblechen mit eckigen Löchern eine vergrösserte Durchtrittsquerfläche, was zu einer Verringerung der Druckverluste im Filter führt.Another advantage results from the design of the filter frame. This is formed by a perforated plate 7 with round holes or, in another embodiment according to FIG. 4, by a plurality of perforated plate parts 7 with round holes, which are connected to one another by segment clamp screws 8. By removing the grid 9, the filter material can be removed and easily cleaned without dismantling the filter frame. The round holes in the perforated plate 7 guarantee, compared to the perforated plates with square holes previously used, an enlarged transverse passage area, which leads to a reduction in the pressure losses in the filter.

Als Filtermaterial wird Kunststoff verwendet, das durch ein Gitter 9 von Aussen an den Filterrahmen angepresst wird. Beim sonst üblichen Einsatz von Kupfermaterial tritt bei hohen Vibrationen oftmals ein Auseinanderbrechen des Filtermaterials auf. Grössere Teile davon können zum Verdichter gelangen und ihn beschädigen. Das wird beim Einsatz von Kunststoff vermieden.Plastic is used as the filter material, which is pressed against the filter frame from the outside by a grid 9. When copper material is otherwise used, the filter material often breaks apart under high vibrations. Larger parts of it can get to the compressor and damage it. This is avoided when using plastic.

BezugszeichenlisteReference symbol list

11
SchalldämpfergehäuseSilencer housing
22nd
DämpfungselementDamping element
33rd
DämpfungssegmentDamping segment
44th
LeitelementGuide element
55
Filterfilter
66
NutenGrooves
77
LochblechPerforated sheet
88th
VerbindungselementeFasteners
99
GitterGrid

Claims (9)

Filterschalldämpfer auf der Ansaugseite eines Verdichters mit mehreren ringförmigen Dämpfungselementen (2) und (2a), welche einen konstanten Abstand voneinander aufweisen und aus mehreren in Umfangsrichtung aneinandergereihten Segmenten (3) bestehen, und mit einem am Umfang des Schalldämpfers angeordneten Filter (5), dadurch gekennzeichnet, dass der Grundkörper als gegossener Monoblock ausgebildet ist, die Dämpfungssegmente (3) durch strahlenförmig angegossene Rippen mit Nuten (6) auf dem Tragteil fixiert sind und der Filterahmen aus einem abnehmbaren Lochblech (7) oder mehreren abnehmbaren, mittels Verbindungselementen (8) miteinander verbundenen Lochblechen (7) besteht.Filter silencer on the intake side of a compressor with several ring-shaped damping elements (2) and (2a), which are at a constant distance from each other and consist of several segments (3) lined up in the circumferential direction, and with a filter (5) arranged on the circumference of the silencer characterized in that the base body is designed as a cast monoblock, the damping segments (3) are fixed to the support part by means of radially cast-on ribs with grooves (6), and the filter frame is made of a removable perforated plate (7) or a plurality of removable panels using connecting elements (8) connected perforated plates (7). Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass das Lochblech (7) runde Löcher aufweist.Filter silencer according to claim 1, characterized in that the perforated plate (7) has round holes. Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die Verbindungselemente (8) Schnallen oder Verschraubungen oder Segmentklammerschrauben sind.Filter silencer according to claim 1, characterized in that the connecting elements (8) are buckles or screw connections or segment clamp screws. Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass das Filtermaterial aus Kunststoff besteht.Filter silencer according to claim 1, characterized in that the filter material consists of plastic. Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass die die Dämpfungselemente (2) an ihrem Innenumfang in Leitelemente (4) übergehen und die beiden äusseren Dämpfungselemente (2a) an der Gehäusewand (1) eine geringere Tiefe in axialer Richtung als die übrigen Dämpfungselemente (2) aufweisen und an ihrem Innenumfang nicht in Leitelemente (4) übergehen.Filter silencer according to claim 1, characterized in that the damping elements (2) merge into guide elements (4) on their inner circumference and the two outer damping elements (2a) on the housing wall (1) have a smaller depth in the axial direction than the other damping elements (2 ) and do not merge into guide elements (4) on their inner circumference. Filterschalldämpfer nach Anspruch 6, dadurch gekennzeichnet, dass jedes Dämpfungselement (2) und (2a) aus vier Dämpfungssegmenten (3) besteht.Filter silencer according to claim 6, characterized in that each damping element (2) and (2a) consists of four damping segments (3). Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass das Dämpfungselement (2) scheibenförmig ist.Filter silencer according to claim 1, characterized in that the damping element (2) is disc-shaped. Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass das Dämpfungselement (2) konisch ist.Filter silencer according to claim 1, characterized in that the damping element (2) is conical. Filterschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass das Dämpfungselement (2) gewölbt ist.Filter silencer according to claim 1, characterized in that the damping element (2) is curved.
EP92110222A 1992-06-17 1992-06-17 Filter-silencer Expired - Lifetime EP0574605B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP92110222A EP0574605B1 (en) 1992-06-17 1992-06-17 Filter-silencer
DE59207544T DE59207544D1 (en) 1992-06-17 1992-06-17 Filter silencer
JP14338693A JP3428684B2 (en) 1992-06-17 1993-06-15 Silencer with filter
PL93299311A PL171061B1 (en) 1992-06-17 1993-06-15 Silencer for suppression of noises originated by a filter
RU93049106A RU2106539C1 (en) 1992-06-17 1993-06-16 Filter-type silencer
KR1019930011004A KR100266913B1 (en) 1992-06-17 1993-06-16 Filter silencer
CN93106977A CN1031011C (en) 1992-06-17 1993-06-17 Filter silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92110222A EP0574605B1 (en) 1992-06-17 1992-06-17 Filter-silencer

Publications (2)

Publication Number Publication Date
EP0574605A1 true EP0574605A1 (en) 1993-12-22
EP0574605B1 EP0574605B1 (en) 1996-11-20

Family

ID=8209718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110222A Expired - Lifetime EP0574605B1 (en) 1992-06-17 1992-06-17 Filter-silencer

Country Status (7)

Country Link
EP (1) EP0574605B1 (en)
JP (1) JP3428684B2 (en)
KR (1) KR100266913B1 (en)
CN (1) CN1031011C (en)
DE (1) DE59207544D1 (en)
PL (1) PL171061B1 (en)
RU (1) RU2106539C1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740080A2 (en) * 1995-04-24 1996-10-30 ABB Management AG Filter-silencer
EP0709567B1 (en) * 1994-10-28 1998-02-25 FILTERWERK MANN &amp; HUMMEL GMBH Intake air filter device for combustion engines
WO1998017918A1 (en) * 1996-10-18 1998-04-30 New Philadelphia Fan Company Fan inlet flow controller
WO2001086152A1 (en) * 2000-05-08 2001-11-15 Abb Turbo Systems Ag Filter silencer
EP1186781A1 (en) * 2000-09-08 2002-03-13 ABB Turbo Systems AG Filter/silencer mounting device for turbo charger inlet
WO2008023033A1 (en) * 2006-08-24 2008-02-28 Abb Turbo Systems Ag Attaching a filter muffler
DE102010028763A1 (en) 2010-05-07 2011-11-10 Man Diesel & Turbo Se Silencer for a turbocompressor and method for laying a silencer
EP2775131A1 (en) 2013-03-06 2014-09-10 ABB Turbo Systems AG Silencer for an exhaust gas turbocharger
CN108708808A (en) * 2018-05-31 2018-10-26 安徽江淮汽车集团股份有限公司 Air filter assembly
DE102019102245A1 (en) 2019-01-30 2020-07-30 Man Energy Solutions Se Intake silencer for turbochargers
EP3926155A1 (en) * 2020-06-16 2021-12-22 ABB Schweiz AG Intake device for a compressor

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100659517B1 (en) * 2005-12-06 2006-12-20 양해숙 Noise reducing apparatus of compressor
DE102006020334B4 (en) * 2006-04-28 2008-07-10 Man Diesel Se filter silencer
CN100427748C (en) * 2006-12-18 2008-10-22 南阳市宜和发电设备有限公司 Environment-friendly tank-mounted energy-saving device for engine
CN102221019A (en) * 2011-08-02 2011-10-19 无锡杰尔压缩机有限公司 Hollow cavity structure of filter silencer sound elimination device
JP5583287B2 (en) * 2012-02-20 2014-09-03 三菱重工業株式会社 Silencer for turbocharger
JP6097188B2 (en) * 2013-09-25 2017-03-15 三菱重工業株式会社 Turbocharger
JP6211029B2 (en) * 2015-03-26 2017-10-11 三菱重工業株式会社 Silencer for turbocharger and turbocharger
CN105089793A (en) * 2015-08-21 2015-11-25 成都博世德能源科技股份有限公司 Efficient silencing air filter cylinder for gas turbine
CN105089804A (en) * 2015-08-21 2015-11-25 成都博世德能源科技股份有限公司 Efficient silencing barrel type air filter used for combustion gas turbine
CN105089811A (en) * 2015-08-26 2015-11-25 成都博世德能源科技股份有限公司 Three-grade efficient noise reducing air filter system for gas turbine
CN105089786A (en) * 2015-08-26 2015-11-25 成都博世德能源科技股份有限公司 Novel efficient air intake system of gas turbine
CN105298934A (en) * 2015-10-30 2016-02-03 山东超越数控电子有限公司 Device for achieving noise reduction of fan
CN115388037B (en) * 2022-08-02 2023-07-21 哈尔滨工程大学 Supercharger air inlet rectifying structure with broadband noise reduction effect

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403576A1 (en) * 1961-07-12 1968-11-07 Maschf Augsburg Nuernberg Ag Intake silencer
DE2547611A1 (en) * 1975-10-02 1977-04-07 Bbc Brown Boveri & Cie FILTER SEGMENT, IN PARTICULAR FOR A SILENCER OF AN EXHAUST GAS TURBOCHARGER
CH593426A5 (en) * 1975-12-18 1977-11-30 Bbc Brown Boveri & Cie
DE2729513A1 (en) * 1977-06-30 1979-01-04 Luefa Werke Gmbh Plate type intake silencer for large fans - has segmented coaxial tapered plates and circumferential inlet gaps between plates
US4204586A (en) * 1975-12-11 1980-05-27 Bbc Brown Boveri & Company Limited Silencer on the intake side of a compressor with assembly of axially spaced annular sound-damping elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403576A1 (en) * 1961-07-12 1968-11-07 Maschf Augsburg Nuernberg Ag Intake silencer
DE2547611A1 (en) * 1975-10-02 1977-04-07 Bbc Brown Boveri & Cie FILTER SEGMENT, IN PARTICULAR FOR A SILENCER OF AN EXHAUST GAS TURBOCHARGER
US4204586A (en) * 1975-12-11 1980-05-27 Bbc Brown Boveri & Company Limited Silencer on the intake side of a compressor with assembly of axially spaced annular sound-damping elements
CH593426A5 (en) * 1975-12-18 1977-11-30 Bbc Brown Boveri & Cie
DE2729513A1 (en) * 1977-06-30 1979-01-04 Luefa Werke Gmbh Plate type intake silencer for large fans - has segmented coaxial tapered plates and circumferential inlet gaps between plates

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709567B1 (en) * 1994-10-28 1998-02-25 FILTERWERK MANN &amp; HUMMEL GMBH Intake air filter device for combustion engines
DE19514990B4 (en) * 1995-04-24 2005-06-30 Abb Turbo Systems Ag filter silencer
DE19514990A1 (en) * 1995-04-24 1996-10-31 Abb Management Ag Filter silencer
EP0740080A3 (en) * 1995-04-24 1998-01-07 Asea Brown Boveri Ag Filter-silencer
EP0740080A2 (en) * 1995-04-24 1996-10-30 ABB Management AG Filter-silencer
US5756944A (en) * 1995-04-24 1998-05-26 Asea Brown Boveri Ag Filter muffler
US5979595A (en) * 1996-10-18 1999-11-09 New Philadelphia Fan Company Fan inlet flow controller
US6148954A (en) * 1996-10-18 2000-11-21 Joy Mm Delaware, Inc. Fan inlet flow controller
US6193011B1 (en) 1996-10-18 2001-02-27 New Philadelphia Fan Company Fan inlet flow controller
EP1172564A3 (en) * 1996-10-18 2002-11-13 Howden Buffalo Inc. Fan inlet flow controller
WO1998017918A1 (en) * 1996-10-18 1998-04-30 New Philadelphia Fan Company Fan inlet flow controller
WO2001086152A1 (en) * 2000-05-08 2001-11-15 Abb Turbo Systems Ag Filter silencer
DE10022240A1 (en) * 2000-05-08 2001-11-15 Abb Turbo Systems Ag Baden Filter silencer for induction side of compressor has at least one damping element in form of sound damper block
WO2002020996A1 (en) * 2000-09-08 2002-03-14 Abb Turbo Systems Ag Mounting device for a filter and sound damper unit on the compressor input of a turbocharger
EP1186781A1 (en) * 2000-09-08 2002-03-13 ABB Turbo Systems AG Filter/silencer mounting device for turbo charger inlet
KR100812585B1 (en) * 2000-09-08 2008-03-13 에이비비 터보 시스템즈 아게 A turbocharger for internal combustion and a mounting device for a filter and sound damper unit on the compressor input of the turbocharger
WO2008023033A1 (en) * 2006-08-24 2008-02-28 Abb Turbo Systems Ag Attaching a filter muffler
DE102010028763A1 (en) 2010-05-07 2011-11-10 Man Diesel & Turbo Se Silencer for a turbocompressor and method for laying a silencer
DE102010028763B4 (en) * 2010-05-07 2015-04-02 Man Diesel & Turbo Se Silencer for a turbocompressor and method for laying a silencer
EP2775131A1 (en) 2013-03-06 2014-09-10 ABB Turbo Systems AG Silencer for an exhaust gas turbocharger
US9228549B2 (en) 2013-03-06 2016-01-05 Abb Turbo Systems Ag Sound attenuator of an exhaust-gas turbocharger
CN108708808A (en) * 2018-05-31 2018-10-26 安徽江淮汽车集团股份有限公司 Air filter assembly
DE102019102245A1 (en) 2019-01-30 2020-07-30 Man Energy Solutions Se Intake silencer for turbochargers
EP3926155A1 (en) * 2020-06-16 2021-12-22 ABB Schweiz AG Intake device for a compressor
WO2021254749A1 (en) * 2020-06-16 2021-12-23 Abb Switzerland Ltd. Intake device for a compressor

Also Published As

Publication number Publication date
DE59207544D1 (en) 1997-01-02
EP0574605B1 (en) 1996-11-20
PL299311A1 (en) 1994-01-24
CN1031011C (en) 1996-02-14
KR940000758A (en) 1994-01-10
JPH0658298A (en) 1994-03-01
JP3428684B2 (en) 2003-07-22
KR100266913B1 (en) 2000-09-15
PL171061B1 (en) 1997-02-28
CN1080368A (en) 1994-01-05
RU2106539C1 (en) 1998-03-10

Similar Documents

Publication Publication Date Title
EP0574605B1 (en) Filter-silencer
EP2655891B1 (en) Fan diffuser with circular inlet and non rotation-symmetric outlet
EP0690206B1 (en) Diffusor for a turbomachine
EP0740080B1 (en) Filter-silencer
EP2011965B1 (en) Method and device for clamping bladed rotor discs of a jet engine
EP1367311B1 (en) Sound damper for a flow duct, in particular for use in a turbine inlet casing
EP2356320B1 (en) Ring diffuser for an axial turbomachine
EP2716915B1 (en) Housing for an axial ventilator
DE102009043894A1 (en) Subdivided combustion chamber lid
EP1429001A2 (en) Intake silencer for gas turbines
EP1510667A2 (en) Silencer
EP3121380A1 (en) Diffuser component for a gas turbine and associated gas turbine engine
DE112009001754T5 (en) Exhaust diffuser for gas turbine
EP3737846B1 (en) Filter muffler for a turbocharger of an internal combustion engine
DE10022240A1 (en) Filter silencer for induction side of compressor has at least one damping element in form of sound damper block
EP2626644B1 (en) Ventilation component comprising a channel-shaped housing with surrounding coverings
EP1380730B1 (en) Silencer
DE2600860C2 (en) Silencer on the suction side of a compressor with several damping elements
DE20319749U1 (en) tubefan
CH663447A5 (en) TURBO MACHINE WITH AT LEAST ONE RADIAL FLOWED WHEEL.
EP0311934B1 (en) Air exit for ventilation and air-conditioning purposes
DE2354126A1 (en) Radial blower with pressure side silencer - silencer surrounds rotor like guide wheel and blower housing also acts as protective housing for silencer
DE10122524A1 (en) Francis turbine rotor has ring segments located in spaces between and connected to neighboring blades
WO2019137854A1 (en) Filter muffler for an exhaust gas turbocharger of an internal combustion engine
DE2033775B2 (en) Silencer for expanding steam - uses combination of perforated plates and direction changing sheet metal baffles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): CH DE GB LI

17P Request for examination filed

Effective date: 19940516

17Q First examination report despatched

Effective date: 19950714

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE GB LI

REF Corresponds to:

Ref document number: 59207544

Country of ref document: DE

Date of ref document: 19970102

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970205

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970620

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990511

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990525

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000617

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000617

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010403