CZ22689A3

CZ22689A3 - exhaust silencer

Info

Publication number: CZ22689A3
Application number: CS89226A
Authority: CZ
Inventors: Dusan Ing Prochazka; Stefan Ing Baran
Original assignee: Podpolianske Strojarne Detva
Priority date: 1989-09-26
Filing date: 1989-09-26
Publication date: 1993-04-14
Also published as: SK277730B6; SK22689A3

Abstract

Exhaust silencer is created by two clothings (P and V) from which the inside clothing (P) is partially created from perforated sheet or metal mesh. Medium which noise should be silenced, enters tangentially into the chamber (D), and there is putted into rotary motion and proceeded through clothings (V and P), which are divided in chambers by compartments (4,5,9 and 11). Through the compartments (5, and 9) and the frontal lid (10) is running the outlet pipe (7) outgoing into surrounding.

Description

Vynález sa dotýká tlmičov hluku, najná spalovacích motorov.The invention relates to noise attenuators, in particular internal combustion engines.

Rieši tlmenie hluku a zároveň zachytávanie ískier a ťažkých častíc obsiahnutých v spalinách.It solves noise attenuation while capturing sparkers and heavy particles contained in the flue gas.

Doterajší stav technikyBACKGROUND OF THE INVENTION

Známe konstrukcie tlmičov výfuku popísané v odbornej literatuře a patentových spisoch sa vyznačujú tým, že spaliny, ktoré sú nositelom hluku, postupujú spravidla rovnoběžně s hlavnou osou tlmiča. Pře zachytenie iskier, čo je žiadúce najma v prostředí obsahujúcom l’ahko zápalné látky, je tieto potřebné doplnit zariadením brániacim ich úletu z výfukovej sústavy stroja do volného priestranstva.The known muffler constructions described in the literature and patent documents are characterized in that the flue gases which carry the noise generally extend parallel to the main axis of the muffler. In order to capture sparks, which is desirable especially in environments containing easily flammable substances, these need to be supplemented with a device preventing their escape from the exhaust system of the machine into the open air.

Podstata vynálezuSUMMARY OF THE INVENTION

Uvedené nevýhody odstraňuje tlmič výfuku podlá vynálezu, ktorého podstata je v tom, že k oddeleniu a zachyteniu iskier i tažkých zložiek spalin využívá odstředivý účinok ich rotujúceho stípca už vo vstupnej časti tlmiča. Toho je dosiahnuté týn, že vstupná rúra spájajúca tlmič so zdrojom spalin ústí do vstupnej komory tlmiča v smere dotyčnice k povrchu plášťa tejto komory, a teda nie je potřebné prs tento účel použit ďalšie zvláštně konstrukčně prvky. Ostatně komory tlmiča slúžiace pře zníženie akustického efektu spalin sú usporiadané tak, že je vytvořený kompaktný celok, v ktorom spaliny postupujú protiprúdom.The above-mentioned disadvantages are eliminated by the exhaust silencer according to the invention, which is based on the fact that it uses the centrifugal effect of their rotating column already in the inlet part of the silencer to separate and capture the sparks and heavy components of the flue gas. This is achieved in that the inlet pipe connecting the silencer to the flue gas source opens into the silencer inlet chamber in the direction of the tangent to the housing surface of the chamber, and therefore no additional structural elements are required for this purpose. Moreover, the silencer chambers serving to reduce the acoustic effect of the flue gas are arranged so as to form a compact unit in which the flue gas flows countercurrently.

Objasnenie výkresovClarification of drawings

Na pripojenom výkrese je znázorněný tlmič výfuku podlá vynálezu v priečnom (obr. 1) a pozdížnom řeze (obr. 2) s vyznačením jeho prvkov a postup spalin od ich zdroja do volného okolia.In the accompanying drawing, an exhaust silencer according to the invention is shown in a transverse (FIG. 1) and longitudinal section (FIG. 2) designating its elements and the flue gas flow from their source to the outside.

Příklad prevedenia vynálezuAn embodiment of the invention

Tlmič výfuku podl’a vynálezu je zložený z vnútorného plášťa £ pozostáva júceho z vnútornej rúry 3, dierovanej medzivložky 6_ a žádným vekom 13. Plášť P. je rozdělený přepážkami 5 a £ na komory, pričom do komory £ tvorenej vnútornou rúrou 3, přepážkami 5_ a 4_ je v smere dotyčnice k povrchu vqútornej rúry 2> připojená vstupná rúra 2> čím ^sa dosiahne, že médium, ktoré je nositelom hluku je uvedené do rotácie postupné pozdíž hlavnej osi 2 tlmiča. Vstupná rúra 2 prechádza vonkajším plášťom V_ tvořeným vonkajšou rúrou 2 žádným vekom 2 ^a predným vekom 10. Vonkajší plášť V je voči vnútornému plášťů 2 středěný přepážkou 11 a výstupnou rúrou 2, ktorá prechádza přepážkami 2 ^a 2 ^a predným vekom 10.The muffler according to the invention is comprised of an inner casing 5 consisting of an inner tube 3, a perforated intermediate liner 6 and no lid 13. The casing P. is divided into compartments 5 and 6 into chambers and into a compartment 6 formed by the inner tube 3, the compartments 5. and 4 is in a direction tangent to the surface of the tube 2 vqútornej> connect input tube 2> ^thereby achieved that the medium which carrying the noise is referred to gradual rotation of the main axis 2 pozdíž muffler. The inlet pipe 2 passes through the outer casing V formed by the outer tube 2 through no lid 2 ^{and the} front lid 10. The outer casing V is centered relative to the inner casing 2 by a partition 11 and an outlet tube 2 which passes through the bulkheads 2 ^and 2 ^{and the} front lid 10.

Priemyselná využitelnost¹ INDUSTRIAL APPLICABILITY ¹

Tlmič výfuku podlá vynálezu sa uplatní vo výfukových systémoch, najma spalovacích motorov na ťažké pálivá, kde sa pri útlme hluku vyžaduje aj zachytávanie iskier a ťažkých zložiek výfukových spalin.The exhaust silencer according to the invention is used in exhaust systems, in particular combustion engines for heavy fuels, where the capture of sparks and heavy components of the exhaust fumes is also required in the case of noise attenuation.

Claims

PATENT CLAIMS

An exhaust silencer integrated with a spark arrester composed of acoustic chambers arranged so that the through-shell chambers are inside the impermeable shell chambers, the inlet chamber with the impassable shell being characterized in that the inlet pipe connecting the silencer to the engine opens into it. the tangent to the housing surface and the outlet chamber being connected by an outlet pipe which passes through the silencer axially upstream, with a free atmosphere, characterized in that the inlet pipe (1) passes through an outer shell (V) composed of an outer pipe (2), the front lid (10) and no lid (8) and into a chamber (0) formed by an inner tube (3) and partitions (4 _Z \ X \ 5).

Exhaust silencer according to claim 1, characterized in that a perforated intermediate liner (6) is connected to the inner tube (3) of the chamber (D), which forms an inner shell (P) with the baffles (χ (J l 1)). .

Exhaust silencer according to claim 1, characterized in that the inner casing (P) is connected to the outer casing (11) and the outlet pipe (7) through the partitions (9) and through the front cover (10). IN).