CZ956U1 - Silencer, particularly for internal combustion engines - Google Patents
Silencer, particularly for internal combustion engines Download PDFInfo
- Publication number
- CZ956U1 CZ956U1 CZ1993987U CZ98793U CZ956U1 CZ 956 U1 CZ956 U1 CZ 956U1 CZ 1993987 U CZ1993987 U CZ 1993987U CZ 98793 U CZ98793 U CZ 98793U CZ 956 U1 CZ956 U1 CZ 956U1
- Authority
- CZ
- Czechia
- Prior art keywords
- silencer
- internal combustion
- combustion engines
- cylindrical insert
- engines
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2846—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for granular supports, e.g. pellets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
-
- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/08—Granular material
-
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/04—Filling or emptying a chamber with granular material
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
(54) Tlumič hluku, zvláště pro spalovací motory(54) Muffler, especially for internal combustion engines
U3 irj osU3 irj pers
Nevýhodou známých tlumičů s katalytickou vložkou, kterou procházejí výfukové plyny, je jejich nízká adaptibilita pro použití u motorů různých výkonů nebo pro motory přeplňované a nepřeplňované, a to s ohledem na i potřebu vytvoření příznivých tlakových poměrů ve výfukovém systému, resp. vytvoření potřebného protítlaku, jehož nesprávná hodnota nepříznivě ovlivňuje parametry a životnost motoru a u přeplňovaných motorů funkci turbodmychadla. Je proto nutné rozdílně dimenzovat konstrukci tlumiče pro různé motory, což s sebou přináší zvýšení technologie jejich výroby.A disadvantage of the known silencers with catalytic liners, which are passed through the exhaust gases, is their low adaptability for use in engines of different power or for engines supercharged and non-supercharged, also with regard to the need to create favorable pressure conditions in the exhaust system, respectively. the creation of the necessary counter-pressure, the incorrect value of which adversely affects the engine parameters and service life and, for supercharged engines, the function of the turbocharger. It is therefore necessary to differentiate the design of the damper for different engines, which brings with it an increase in the technology of their production.
Podstata technického řešeniThe essence of the technical solution
Uvedené nedostatky do značné míry odstraňuje tlumič hluku, zvláště pro spalovací motory, jehož podstata spočívá v tom, že válcová vložka je opatřena průchozími otvory. Válcová vložka je s výhodou uspořádána tak, že se jedním koncem opírá o dno a druhým koncem prochází přepážkou. V místě styku válcové vložky se dnem je uspořádána zátka.The aforementioned drawbacks are largely eliminated by a silencer, especially for internal combustion engines, which is based on the fact that the cylinder liner is provided with through holes. The cylindrical insert is preferably arranged such that it rests with one end against the bottom and extends through the other end of the partition. A plug is provided at the point of contact of the cylinder with the bottom.
Výhodou tohoto uspořádání je možnost volby velikosti a počtu průchozích otvorů ve válcové vložce a tím docílit požadovaných tlakových poměrů ve výfukovém systému různých motorů, přičemž filtrační schopnost tlumiče není podstatně ovlivněna. Uložení válcové vložky jedním koncem „ v přepážce tak, že vlivem tepelných dilatací může přepážkou procházet, zamezí porušování válcové vložky a ·» zvyšuje se tak životnost celého tlumiče. Uspořádání zátky ve dně tlumiče v místě válcové vložky umožní v případě potřeby snadné doplňování katalytické náplně.The advantage of this arrangement is that it is possible to select the size and number of through holes in the cylinder liner and thereby achieve the desired pressure conditions in the exhaust system of various engines, while the filtering ability of the damper is not substantially affected. Placing the cylindrical insert in one end "in the partition so that it can pass through the partition due to thermal dilatations, avoids breakage of the cylinder and thus increases the life of the entire damper. The arrangement of the plug in the bottom of the damper at the location of the cylinder liner allows easy refilling of the catalytic charge, if necessary.
Přehled obrázků na výkreseOverview of the drawings
Technické řešení tlumiče hluku je znázorněno v částečném podélném řezu na přiloženém obrázku.The technical design of the silencer is shown in a partial longitudinal section in the attached figure.
Příklady provedení technického řešeníExamples of technical solution
Vnější obvodový plášť 1 je dvojitý, přičemž mezi jeho stěnami je vložena izolační vrstva 2, tvořící hlukovou a tepelnou izolaci. Obvodový plášť 1 je z obou stran zakončem dnem 4. V jednom dnu 4 je vytvořen výstupní otvor 5, přičemž u druhého dna 4 je v obvodovém plášti 1 uspořádán vstupní otvor 3. Na straně výstupního otvoru 5 je ve vnitřním prostoru obvodového pláště 1 uspořádána přepážka 10, kterou prochází jeden konec válcové vložky 6 s katalytickou náplní, např. granulovaným materiálem s platinovou vrstvičkou, přičemž druhý konec válcové vložky 6 se opírá o dno 4. Válcová vložka 6 je opatřena průchozími otvory 3, kterými výfukové plyny volně procházejí. V místě styku válcové vložky 6 a dnem 4 je ve dnu 4 uspořádána zátka 9. Pro zamezení poměrně rychlého snížení účínosti a životnosti katalytické náplně v místě vstupního otvoru 3 je proti němu uspořádána na vložce 6 krycí deska 7, která obaluje vložku 6 v části jejího obvodu. Vložka 6 je vytvořena ze dvou soustředných děrovaných trubek. Velikostí děr těchto trubek, velikostí vstupního otvoru 3, výstupního otvoru 5, průchozího otvoru 11 v přepážce 10 a přesazením osy výstupního otvoru 5 vůči. paralelní ose průchozího otvoru 11 je možno rovněž měnit tlakové poměry proudících výfukových plynů.The outer cladding 1 is double, with an insulating layer 2 between its walls forming noise and heat insulation. The circumferential jacket 1 is a bottom end 4 on both sides. In one floor 4 an outlet opening 5 is formed, and on the other bottom 4 an inlet opening 3 is arranged in the peripheral jacket 1. On the side of the outlet opening 5 10, through which one end of the cylindrical insert 6 with a catalytic filling, e.g. granulated material with a platinum layer, passes, the other end of the cylindrical insert 6 being supported on the bottom 4. The cylindrical insert 6 is provided with through holes 3 through which exhaust gases pass freely. A plug 9 is provided in the bottom 4 at the point of contact of the cylindrical liner 6 and the bottom 4. To avoid a relatively rapid reduction in efficiency and service life of the catalytic charge at the inlet 3, a cover plate 7 is provided against it. circuit. The insert 6 is formed from two concentric perforated tubes. The size of the holes of these tubes, the size of the inlet opening 3, the outlet opening 5, the through opening 11 in the partition 10 and the offset of the outlet opening axis 5 relative to. it is also possible to vary the pressure ratios of the flowing exhaust gas through the parallel axis of the through hole 11.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS913897A CZ389791A3 (en) | 1991-12-19 | 1991-12-19 | sound damper, particularly for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
CZ956U1 true CZ956U1 (en) | 1993-11-05 |
Family
ID=5380383
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CZ1993987U CZ956U1 (en) | 1991-12-19 | 1991-12-19 | Silencer, particularly for internal combustion engines |
CS913897A CZ389791A3 (en) | 1991-12-19 | 1991-12-19 | sound damper, particularly for internal combustion engines |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS913897A CZ389791A3 (en) | 1991-12-19 | 1991-12-19 | sound damper, particularly for internal combustion engines |
Country Status (2)
Country | Link |
---|---|
CZ (2) | CZ956U1 (en) |
WO (1) | WO1993012328A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR87613E (en) * | 1964-11-05 | 1966-04-15 | Berliet Automobiles | Device for cleaning the exhaust gases of heat engines containing solid components |
US3290876A (en) * | 1964-11-17 | 1966-12-13 | Ernst Josef | Engine exhaust gas decontaminating device |
US3637353A (en) * | 1970-08-24 | 1972-01-25 | Oxy Catalyst Inc | Apparatus for purifying and silencing the exhaust gases of a hydrocarbon-fueled engine |
US3881316A (en) * | 1971-04-16 | 1975-05-06 | Toyota Motor Co Ltd | Exhaust gas purifying device for an internal combustion engine |
-
1991
- 1991-12-19 CZ CZ1993987U patent/CZ956U1/en unknown
- 1991-12-19 CZ CS913897A patent/CZ389791A3/en unknown
-
1992
- 1992-12-18 WO PCT/CS1992/000036 patent/WO1993012328A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CZ389791A3 (en) | 1993-07-14 |
WO1993012328A1 (en) | 1993-06-24 |
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