WO1993012328A1 - Silencieux, notamment pour moteurs a combustion interne - Google Patents

Silencieux, notamment pour moteurs a combustion interne Download PDF

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Publication number
WO1993012328A1
WO1993012328A1 PCT/CS1992/000036 CS9200036W WO9312328A1 WO 1993012328 A1 WO1993012328 A1 WO 1993012328A1 CS 9200036 W CS9200036 W CS 9200036W WO 9312328 A1 WO9312328 A1 WO 9312328A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
silencer
combustion engines
cylinder insert
cylinder
Prior art date
Application number
PCT/CS1992/000036
Other languages
German (de)
English (en)
Inventor
Jir^¿í SOUC^¿EK
Stanislav KLA^´T
Josef Nalezenec
Original Assignee
Soucek Jiri
Klat Stanislav
Josef Nalezenec
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 Soucek Jiri, Klat Stanislav, Josef Nalezenec filed Critical Soucek Jiri
Publication of WO1993012328A1 publication Critical patent/WO1993012328A1/fr

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

Definitions

  • the invention relates to a muffler, in particular for internal combustion engines, with an outer circumferential jacket, in one end section of which an inlet opening is arranged, with a bottom that closes the circumferential jacket on both sides, an outlet opening in the bottom, which is more distant from the inlet opening, and an inside of the circumferential jacket cylinder insert provided with catalytic filling are arranged.
  • Known mufflers are provided with catalytic fillings, such as cylinder inserts, so that during operation of the internal combustion engine they not only have the function of reducing the emitting noise but also the function of reducing the pollutants in exhaust gases.
  • the function of sound reduction is filled by the insulation layers which are arranged in the peripheral jacket, while the function of reducing pollutants is fulfilled by the use of catalytic filling which is arranged in the inner space of the peripheral jacket.
  • the flowing gases flow from the inlet opening through the insert with catalytic filling into the outlet opening.
  • the design and arrangement of the insert with catalytic filling with regard to the inlet and outlet opening is important. At the same time, it is necessary to take into account the effect and the lifetime of the catalytic filling.
  • the known silencers with the inserts having the catalytic filling are disadvantageous because of their lower adaptability for use in the internal combustion engines of different powers or internal combustion engines with or without supercharging.
  • various internal combustion engines there is a need to create favorable pressure conditions in the exhaust system.
  • the incorrect values The pressure conditions adversely affect parameters, service life and, in the case of supercharged internal combustion engines, the function of the turbocharger.
  • the cylinder insert is provided with openings through the catalytic filling.
  • the cylinder insert is supported with one end on the floor and with its other end section through the vaginal wall.
  • a plug is arranged on the point of contact of the cylinder insert with the floor.
  • Sound and heat insulation is inserted between the walls of a double-walled cylinder jacket 1 ⁇ .
  • the cylinder jacket, ⁇ is provided with bottom 4_ at its ends.
  • In one of the two floors 4_ there is an outlet opening 5, while an inlet opening is arranged closer to the other floor in the cylinder jacket 1 ⁇ .
  • On the side of the outlet opening 5 ⁇ is iL in the inner space of the cylinder jacket a silk wall ⁇ is arranged through which one end of the cylinder insert 6_ passes, the other end of the cylinder insert resting on the floor 4_.
  • the space between an inner and an outer perforated plate of the cylinder insert is filled with a catalytic filling, for example granulate material, with a circuit board layer.
  • a plug 9_ is arranged on the point of contact of the cylinder insert with the bottom 4_.
  • the cylinder insert is provided with openings 8_ through the catalytic filling.
  • the exhaust gas flows freely through these openings 8_ whose axes are straight.
  • a protective plate 7_ is provided which covers part of the scope of use.

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

Un silencieux comprend une enveloppe périphérique extérieure (1) fermée des deux côtés par des fonds (4). Dans le fond (4) plus éloigné de l'orifice d'admission (3) est ménagé un orifice de sortie (5) et une partie insérée cylindrique (6) remplie d'un catalyseur est située à l'intérieur de l'enveloppe périphérique (1). La partie insérée cylindrique (6) est pourvue de passages (7) qui traversent en ligne droite le catalyseur.
PCT/CS1992/000036 1991-12-19 1992-12-18 Silencieux, notamment pour moteurs a combustion interne WO1993012328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS913897A CZ389791A3 (en) 1991-12-19 1991-12-19 sound damper, particularly for internal combustion engines
CSPV3897-91 1991-12-19

Publications (1)

Publication Number Publication Date
WO1993012328A1 true WO1993012328A1 (fr) 1993-06-24

Family

ID=5380383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CS1992/000036 WO1993012328A1 (fr) 1991-12-19 1992-12-18 Silencieux, notamment pour moteurs a combustion interne

Country Status (2)

Country Link
CZ (2) CZ389791A3 (fr)
WO (1) WO1993012328A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290876A (en) * 1964-11-17 1966-12-13 Ernst Josef Engine exhaust gas decontaminating device
CH447718A (fr) * 1964-11-05 1967-11-30 Berliet Automobiles Pot d'échappement, notamment pour moteur Diesel, et son procédé de fabrication
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447718A (fr) * 1964-11-05 1967-11-30 Berliet Automobiles Pot d'échappement, notamment pour moteur Diesel, et son procédé de fabrication
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

Also Published As

Publication number Publication date
CZ956U1 (cs) 1993-11-05
CZ389791A3 (en) 1993-07-14

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