US3460916A - Exhaust gas burners - Google Patents

Exhaust gas burners Download PDF

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US3460916A
US3460916A US3460916DA US3460916A US 3460916 A US3460916 A US 3460916A US 3460916D A US3460916D A US 3460916DA US 3460916 A US3460916 A US 3460916A
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exhaust gas
combustion chamber
pipe
air
turbulator
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Allan Inovius
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Allan Inovius
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/30Arrangements for supply of additional air
    • F01N3/34Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/18Exhaust 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 methods of operation; Control
    • F01N3/20Exhaust 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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2033Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/18Exhaust 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 methods of operation; Control
    • F01N3/20Exhaust 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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/204Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/26Construction of thermal reactors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/28Construction of catalytic reactors
    • F01N3/2892Exhaust flow directors or the like, e.g. upstream of catalytic device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/30Arrangements for supply of additional air
    • F01N3/32Arrangements for supply of additional air using air pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/38Arrangements for igniting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • F01N13/10Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • F01N2330/08Granular material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/20Exhaust after-treatment
    • Y02T10/26Thermal conditioning of exhaust after-treatment

Description

1969 A. ARONSOHN EXHAUST GAS BURNERS 3 Sheets-Sheet 1 Filed July 9, 1965 M o p WW I Z f m M mm 9 /Wmm f l'. mp w? g- A. ARONSOHN 3,460,916

EXHAUST GAS BURNERS Filed July 9, 1965 3 Sheets-Sheet I In verfl'br ,4// grouse/1n flff'orne s Aug. 12, 1969 A. ARONSOHN EXHAUST GAS BURNERS 3 Sheets-Sheet 5 Filed July 9. 1965 Ma Hfibrne -s United States Patent U.S. Cl. 23288 6 Claims ABSTRACT OF THE DISCLOSURE Exhaust gas burner having an elongated combustion chamber for connection to an exhaust gas conduit to permit exhaust gases to flow therethrough having an exhaust gas inlet, an exhaust gas outlet and an air inlet. A liner of catalyzing material on the walls of said chamber for continuous ignition of combustible components in the supplied exhaust gases which after initiated preheating is kept warm by the combustion in the combustion chamber. A turbulator disposed in the combustion chamber dividing it into two compartments communicating with each other through the turbulator. One of the compartments being defined between said turbulator and an end wall of the combustion chamber at which the exhaust gas inlet is arranged. The other of said compartments being defined between the turbulator and an end wall of the combustion chamber at which the exhaust gas outlet is arranged. The last named compartment is a second afterburning zone. The turbulator has a nose facing the exhaust gas inlet.

This invention relates to an exhaust gas burner for internal combustion engines, furnaces, evacuating plants and the like for the combustion of inter alia unburnt hydrocarbons and carbon oxide which occur in the exhaust gases by reason of incomplete combustion in the engine or furnace.

The primary object of the invention is to provide an exhaust gas burner which can function continuously without a particular heat source and without being clogged by solid particles accompanying the exhaust gases, and which can be manufactured at low costs to enable extensive use, for instance in motor vehicles.

The invention provides an exhaust gas burner comprising an elongated combustion chamber which is intended for connection in an exhaust gas conduit to permit exhaust gases to flow therethrough and which for this purpose has an exhaust gas inlet and an exhaust gas outlet and is equipped with an inlet for taking air into the combustion chamber, and an insert of catalyzing material in the combustion chamber for continuous ignition of combustible components occurring in the supplied exhaust gases, said insert being adapted to be kept Warm by the combustion in the combustion chamber.

For better elucidation the invention will be described in more detail in the following with reference to the accompanying drawings in which:

FIG. 1 is an axial section of an embodiment of the exhaust gas burner according to the invention, intended for use with motor vehicles;

FIG. 2 is an axial section of another embodiment of the exhaust gas burner according to the invention, likewise intended for use with motor vehicles;

FIG. 3 is a section on line 3-3 in FIG. 2;

FIG. 4 is an axial section of a third embodiment of the exhaust gas burner according to the invention, also intended for use with motor vehicles.

The exhaust gas burner shown in FIG. 1 comprises by fireproof sheet iron or sheet steel. An exhaust gas inlet pipe 11 is disposed at one end of the combustion chamice ber, and for supplying preheated air through injector action produced by the exhaust gas flow of the engine there is arranged coaxially with the exhaust gas inlet pipe 11 a pipe 12 communicating with the atmosphere, and on said pipe 12 there is arranged a further coaxial pipe 13 for supplying air by means of a turbine-driven fan or the like. The supplied air may have been preheated in the water or air cooling system of the engine and is further preheated in that it sweeps along the exhaust inlet pipe 11 and pipe 12, respectively. Furthermore, the combustion chamber has an ignition element 14 which may be a spark plug or glow plug which may be placed inside a perforated pro-chamber and which may be cut in with the ignition key of the car or by means of a thermostat, and a perforated turbulator 15 (i.e., an element creating a turbulence or vortex action) having a nose 15' which is coaxial with the pipes 1113. The turbulator has for its purposes to provide an intimate mixture of exhaust gases and air in the combustion chamber and is adjustable longitudinally of the combustion chamber with the aid of screws 16. It delimits an equalization and after burning zone 10 in the combustion chamber at the very outlet end of said chamber. Disposed around the pipe 12 is an annulus 17 which has an internal conical surface 17' which widen towards the interior of the combustion chamber. This annulus is likewise adjustable longitudinally of the combustion chamber with the aid of screws 18. The annulus 17 serves to prevent pressure shocks in the combustion chamber from being transferred rearwardly, i.e. against the intended direction of flow of the exhaust gases, into the pipes 12 and 13. This action may be improved in that the annulus is formed with a neck portion 17" which surrounds the pipe 12 leaving an annular space to said pipe 12. By this arrangement the air entering the combustion chamber 10 through the pipe 12 exerts an injector action upon the air in the pipe 13, and said injector action may be so pronounced that a specific fan or the like for supplying air through the pipe 13 may possibly be disposed with. As the annulus 17, possibly together with the associated neck portion 17', and the turbulator 15 are adjustable longitudinally of the combustion chamber 10 one and the same combustion chamber is easily adaptable to different engine types. A socket 19 is provided at the other end of the combustion chamber for the connection of the exhaust gas burner to an outlet pipe.

For maintaining the combustion in the combustion chamber after the latter has reached a certain temperature, a minimum of 550 0., without the intermediary of the ignition element 14 the combustion chamber 11 is internally coated with a possibly corrugated liner 20 of catalyzing porous solid ceramic material, for instance Alumo 60 manufactured by Hoganas-Billesholms AB, Hoganas, Sweden, in which ceramic material there may be incorporated a catalyst, for instance a metal powder such as vanadium powder. The nose 15 is of the same type of material and so is the annulus 17. The liner 20 may also be formed by granules enclosed in a cage of heat-resistant metal-wire netting.

It is important that the exhaust gas burner is placed as close as possible to the internal combustion engine or furnace in order that a high temperature may be maintained in the exhaust gas burner, and for facilitating the mounting of the exhaust gas burner shown in FIG. 1, which is intended for use with motor vehicles, a clamping nut 21 is arranged on the outer side of the combustion chamber 10 so that said chamber can be mounted directly on the cast exhaust gas pipe of the engine.

The embodiment according to FIGS. 2 and 3 includes a sheet steel can 24 forming the combustion chamber and having a catalyzing ceramic liner 25 possibly with a catalyst incorporated therein. A nose 26 is encased in a sheet metal can 28 which is axially adjustable and arrestable in adjusted position, for instance by means of a screw 27, said can 28 having an annular and cup-shaped Wall 29 with apertures 30 and forming an afterburning zone 31 to which an outlet conduit 32 is connected. The liner 25 is accessible to gas in the afterburning zone 31 through holes 28 in the shell of the can 28. Secured to the other end wall 33 of the can 25 is a cylinder 34 having a flange 35 for the connection of the cylinder to the manifold 36 of the internal combustion engine. A partition 37 between an exhaust gas inlet pipe 38 and the cylinder 34 divides said cylinder into two chambers 39 and 40, the chamber 39 being connected to a suction air conduit 41, possibly provided with an air cleaner, and the chamber 40 via a pressure air conduit 42 to an air pump 43 which may be driven by means of a belt from the shaft of the internal combustion engine. Two pipes 44 and 45 enter the end wall 33 and form together with the pipe 38 two channels each having a semiannular opening 46 and 47, respectively, leading to the chamber 39 and 40, respectively. The pipe 44 supports a ring 48 preventing back-firing and consisting of a thin wall of heat-resistant metal-wire netting with catalyst material applied thereto, or of a thicker body 49 of the same material as the parts 25 and 26, or of soap-stone coated or covered with catalyst material on the inwardly facing surface. The pipes 38, 44 and 45 can be supported inter se by means of some axially extending webs or Wings 50. A glow plug or spark plug 51 is disposed in the wall of the combustion chamber.

In FIG. 4, 52 designates a sheet metal can comprising a catalyzing ceramic liner 52, a fixation flange 54 for the engine manifold 55, an exhaust gas inlet pipe 56, an air intake 57 possibly connected to an air pump and leading into a pipe 58, a gas outlet 59 connected to an annular channel 60 between the liner 53 and the pipe 58, and a glow plug 61 disposed in a central nose 62 of the linear or laterally mounted as in FIG. 2.

In the three embodiments of the invention herein described the exhaust gases from the internal combustion engine are mixed in the combustion chamber with the air supplied thereto and the resulting combustible mixture is ignited initially, that is when the internal combustion engine and as a consequence the combustion chamber is cold, by means of the ignition element (the spark plug or glow plug). After combustion has been initiated and the ceramic catalyst has been heated to the temperature required to make the combustion proceed by itself under the action of the catalyst, which may be in a glowing state, the ignition element may be disconnected. As already stated, the ignition element can be cut in by means of the ignition key in order to be cut out by a time relay or like device a certain time after it has been cut in. However, the ignition element may also be cut in and cut out by a thermostat which senses the temperature in the combustion chamber.

The combustion in the combustion chamber is realized by a torus flame around the nose of the turbulator on the side thereof which faces the exhaust gas stream. The flow of the gases in the combustion chamber is indicated by arrows in FIGS. 1, 2 and 4. A certain afterburning takes place in the embodiment according to FIG. 1 and that according to FIGS. 2 and 3, after the burning gases have passed through the openings of the turbulator, in the afterburning zone situated between the turbulator and the outlet, and in the embodiment according to FIG. 4 in the annular channel 60.

The exhaust gas burner described is also useful in connection with coal or oil-fired furnaces, such as boilers. In that connection the ignition element may be dispensed with.

Not only the exhaust gases from the cylinders of the internal combustion engine but also carbon oxide or hydrocarbon-laden gases from the crankcase of the internal combustion engine may be supplied to the exhaust gas combustion chamber.

T 0 provide the necessary turbulence in the combustion chamber the exhaust gas inlet may be arranged tangentially in a cylindrical combustion chamber having an axial outlet, in order that air and gas shall pass through the combustion chamber under rotary motion in the same way as in a cyclone apparatus, thereby sweeping over the catalyst disposed as a liner in the chamber. In other modified embodiments of the invention the combustion chamber may have a cross section other than circular, for instance rectangular.

What I claim and desire to secure by Letters Patent is:

1. Exhaust gas burner comprising an elongated combustion chamber for connection to an exhaust gas conduit to permit exhaust gases to flow therethrough having an exhaust gas inlet, an exhaust gas outlet and an air inlet, a liner of catalyzing material on the walls of said chamber for continuous ignition of combustible components in the supplied exhaust gases, said liner after initiated preheating being kept warm by the combustion in said combustion chamber, a turbulator disposed in said combustion chamber dividing said combustion chamber into two compartments communicating with each other through said turbulator, one of said compartments being defined between said turbulator and an end wall of said combustion chamber at which said exhaust gas inlet is arranged, and the other of said compartments being defined between said turbulator and an end wall of said combustion chamber at which said exhaust gas outlet is arranged, said last named compartment being a second afterburning zone and said turbulator having a nose facing said exhaust gas inlet.

2. An exhaust gas burner according to claim 1 wherein the surface of said nose is of a catalyzing solid material.

3. An exhaust gas burner according to claim 1, wherein an annulus is provided in said combustion chamber between said exhaust gas inlet and said turbulator, said annulus being adjustable longitudinally of said combustion chamber and having an internal conical surface which widens towards the interior of said combustion chamber.

4. An exhaust gas burner according to claim 3, wherein the annulus is formed with a neck surrounding the air inlet and leaving a space to said inlet, said space communieating with a second air inlet.

5. An exhaust gas burner according to claim 3, wherein the surface of said annulus comprises a catalyzing solid material.

'6. An exhaust gas burner according to claim 3, wherein said turbulator is adjustable longitudinally of the combustion chamber.

References Cited UNITED STATES PATENTS Re. 25,858 9/1965 Matvay 23288 1,934,596 11/19'33 Fogas 23-277 2,728,408 12/1955 Deliman 23277 3,059,420 10/ 1962 Schnabel 23288 3,072,458 1/1963 Page 23288 3,211,534 10/ 1965 Ridgway 23--288 3,220,179 11/ 1965 Bloomfield 23-288 3,248,872 5/1966 Morrell 23-288 JOSEPH SCOVRONEK, Primary Examiner US. Cl. X.R.

US3460916A 1964-07-10 1965-07-09 Exhaust gas burners Expired - Lifetime US3460916A (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595015A (en) * 1970-02-18 1971-07-27 Eugene T Dykes Exhaust gas treatment means
US3656303A (en) * 1970-04-13 1972-04-18 Robert C La Force Combustion engine pollution control
US3751920A (en) * 1971-12-09 1973-08-14 Du Pont Exhaust gas reactor
US3864909A (en) * 1971-07-28 1975-02-11 Boysen Friedrich Kg Thermal reactor with relatively movable internal pipe sections
US3910762A (en) * 1973-01-15 1975-10-07 James W Morrall Means for purifying the exhaust discharge of internal combustion engines
US3921397A (en) * 1972-02-14 1975-11-25 G Emilio Guarderas Silencer against toxic gases
US3947545A (en) * 1973-06-20 1976-03-30 Toyota Jidosha Kogyo Kabushiki Kaisha Purification of exhaust gas
US3982397A (en) * 1973-02-12 1976-09-28 Pierre Alfred Laurent Apparatus for afterburning the exhaust gases of an internal combustion engine to remove pollutants therefrom
US4039293A (en) * 1976-06-15 1977-08-02 Toyota Jidosha Kogyo Kabushiki Kaisha Catalytic converter for an internal combustion engine
US4206177A (en) * 1977-02-09 1980-06-03 Yamaha Hatsudoki Kabushiki Kaisha Exhaust silencer including a catalyst
DE3532777A1 (en) * 1985-09-13 1987-03-19 Man Technologie Gmbh Burner
US4673552A (en) * 1982-09-09 1987-06-16 Hydrocarbon Research, Inc. Downwardly directed fluid flow distribution system for ebullated bed reactor
US4716725A (en) * 1986-06-30 1988-01-05 Robert Bosch Gmbh Apparatus for burning solid particles in the exhaust gas of internal combustion engines
US4731994A (en) * 1986-06-30 1988-03-22 Robert Bosch Gmbh Apparatus for burning solid particles in the exhaust gas of internal combustion engines
US4947768A (en) * 1989-05-05 1990-08-14 Luigi Carboni Smoke purifier apparatus for chimneys
US5207058A (en) * 1990-11-16 1993-05-04 Toyota Jidosha Kabushiki Kaisha Internal combustion engine
US5285640A (en) * 1992-07-21 1994-02-15 Olivo John R Integrated post-engine emissions heater, catalytic converter and muffler
US5381659A (en) * 1993-04-06 1995-01-17 Hughes Aircraft Company Engine exhaust reburner system and method
US5381660A (en) * 1993-04-06 1995-01-17 Hughes Aircraft Company Engine exhaust reburner system and method
US5419126A (en) * 1991-12-25 1995-05-30 Maruyama Mfg. Co. Inc Exhaust silencer
US5421154A (en) * 1992-07-23 1995-06-06 Pfefferle; William C. Exhaust temperature control
US5437152A (en) * 1991-01-09 1995-08-01 Pfefferle; William C. Catalytic method
WO1996023133A1 (en) * 1995-01-25 1996-08-01 Pfefferle William C Catalytic method
US5823759A (en) * 1993-03-20 1998-10-20 Cabot Corporation Apparatus and method for burning combustible gases
WO1999054662A1 (en) 1998-04-17 1999-10-28 Reactor Combustion World Organisation S.A. Method and apparatus for the prevention of global warming, through elimination of hazardous exhaust gases of waste and/or fuel burners
WO2000075572A1 (en) * 1999-06-08 2000-12-14 Compagnie Des Gaz De Petrole Primagaz Method for operating a burner and burner facilitating the implementation of said method
FR2794846A1 (en) * 1999-10-12 2000-12-15 Gaz De Petrole Ignition and flame-maintaining procedure for mobile burner, has electrically operated fuel valve and repetitively sparking electric igniter, located in turbulent zone
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US3595015A (en) * 1970-02-18 1971-07-27 Eugene T Dykes Exhaust gas treatment means
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US3864909A (en) * 1971-07-28 1975-02-11 Boysen Friedrich Kg Thermal reactor with relatively movable internal pipe sections
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US3947545A (en) * 1973-06-20 1976-03-30 Toyota Jidosha Kogyo Kabushiki Kaisha Purification of exhaust gas
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US4206177A (en) * 1977-02-09 1980-06-03 Yamaha Hatsudoki Kabushiki Kaisha Exhaust silencer including a catalyst
US4673552A (en) * 1982-09-09 1987-06-16 Hydrocarbon Research, Inc. Downwardly directed fluid flow distribution system for ebullated bed reactor
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US4716725A (en) * 1986-06-30 1988-01-05 Robert Bosch Gmbh Apparatus for burning solid particles in the exhaust gas of internal combustion engines
US4731994A (en) * 1986-06-30 1988-03-22 Robert Bosch Gmbh Apparatus for burning solid particles in the exhaust gas of internal combustion engines
US4947768A (en) * 1989-05-05 1990-08-14 Luigi Carboni Smoke purifier apparatus for chimneys
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US5421154A (en) * 1992-07-23 1995-06-06 Pfefferle; William C. Exhaust temperature control
US5823759A (en) * 1993-03-20 1998-10-20 Cabot Corporation Apparatus and method for burning combustible gases
US5381660A (en) * 1993-04-06 1995-01-17 Hughes Aircraft Company Engine exhaust reburner system and method
US5381659A (en) * 1993-04-06 1995-01-17 Hughes Aircraft Company Engine exhaust reburner system and method
WO1996023133A1 (en) * 1995-01-25 1996-08-01 Pfefferle William C Catalytic method
WO1999054662A1 (en) 1998-04-17 1999-10-28 Reactor Combustion World Organisation S.A. Method and apparatus for the prevention of global warming, through elimination of hazardous exhaust gases of waste and/or fuel burners
WO2000075572A1 (en) * 1999-06-08 2000-12-14 Compagnie Des Gaz De Petrole Primagaz Method for operating a burner and burner facilitating the implementation of said method
FR2794847A1 (en) * 1999-06-08 2000-12-15 Gaz De Petrole A method for preventing flame of a burner to extinguish burner and facilitating its implementation
EP1491822A1 (en) * 1999-06-08 2004-12-29 Compagnie des Gaz de Pétrole Primagaz Burner with impact element for producing turbulence
FR2794846A1 (en) * 1999-10-12 2000-12-15 Gaz De Petrole Ignition and flame-maintaining procedure for mobile burner, has electrically operated fuel valve and repetitively sparking electric igniter, located in turbulent zone
US20150047314A1 (en) * 2013-08-14 2015-02-19 Alstom Technology Ltd. Intake arrangement in gas turbine power plant
CN104373214A (en) * 2013-08-14 2015-02-25 阿尔斯通技术有限公司 Improved intake arrangement in gas turbine power plant
US9650956B2 (en) * 2013-08-14 2017-05-16 Ansaldo Energia Ip Uk Limited Intake arrangement in gas turbine power plant
CN104373214B (en) * 2013-08-14 2018-01-09 安萨尔多能源英国知识产权有限公司 The gas turbine power plant in an improved inlet assembly

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