WO1997042404A1 - Dispositif de purification des gaz d'echappement de moteurs a combustion interne - Google Patents
Dispositif de purification des gaz d'echappement de moteurs a combustion interne Download PDFInfo
- Publication number
- WO1997042404A1 WO1997042404A1 PCT/FR1997/000780 FR9700780W WO9742404A1 WO 1997042404 A1 WO1997042404 A1 WO 1997042404A1 FR 9700780 W FR9700780 W FR 9700780W WO 9742404 A1 WO9742404 A1 WO 9742404A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- enclosure
- pump
- exhaust gases
- exhaust
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to devices for purifying the exhaust gases emitted by internal combustion engines, for example fitted to motor vehicles, thermal power stations, and other installations, so as to combat the pollution caused by the proliferation of industrial installations. and vehicles emitting such exhaust gases.
- Document BE-A-0887246 also discloses a method and a device for purifying exhaust gases from internal combustion engines, in which the exhaust gases are cooled below their dew point, and where the liquid formed and the particles of solid material contained in the exhaust gases are separated.
- the exhaust gases are preferably brought into contact with a sorption agent after the separation of the solid particles and the liquid in order to separate the other gaseous polluting components therefrom.
- Document DE-A-2 615456 describes a tank located in the boot of a motor vehicle filled with an oxidizing liquid, which can be filled with an oxidizing liquid or gas, which can be sprayed into the tubing exhaust in its hottest area.
- the exhaust manifold is fitted with coils to assist in mixing.
- a compressor coupled to the engine can help with injection.
- EP-A-0 036 765 relates to a device intended for vehicles used in underground mines to avoid explosions and stop the propagation of possible flames coming from the exhaust pipe of the gases of the heat engine equipping these mining vehicles.
- the exhaust gases are directed into a water tank to be mixed with the water and to be cooled before being expelled in the form of gas-water spray.
- a gas-water mixture deflector system is used to slow the speed of the mixture and retain the water inside the container, in order to reduce water consumption.
- the present invention is placed in this context and aims to provide a device for purifying exhaust gases internal combustion engines fitted to motor vehicles and industrial installations, which is simple to implement, and, therefore, which requires only simple and inexpensive equipment to design and maintain, which does not involve use of hazardous or expensive chemicals.
- the subject of the present invention is a device for purifying the exhaust gases of internal combustion engines, comprising a chamber disposed between an inlet manifold connected to an engine exhaust gas manifold and a manifold of exit.
- the enclosure is at least partially filled with a liquid into which the end of the exhaust gas inlet pipe plunges, the liquid being recycled in a circuit comprising a pump aspirating through a pipe the liquid and discharging this liquid through a heat exchanger device.
- a dividing device is arranged at the outlet of the pump to distribute the liquid supplied by the pump into two parts, a first part towards
- the heat exchanger, and a second part to a mixing device The heat exchanger, and a second part to a mixing device.
- the mixing device is disposed on the exhaust gas inlet pipe.
- the liquid is distributed by the divider device into two substantially equal parts, the divider device may further include a non-return valve allowing the passage of exhaust gases from the exhaust manifold and preventing the passage of the liquid to this collector.
- the temperature of the liquid in the enclosure is regulated by means of a temperature sensor controlling a fan motor via a servo loop.
- a gauge may consist of a float gauge.
- the volume of liquid in the enclosure is between one and three liters per horsepower of engine power.
- an enclosure designated as a whole by the reference 10, into which opens a tube 12 coming from an exhaust gas manifold 14 of an internal combustion engine M.
- the enclosure 10 is partially filled with a liquid 16, such as water, so that the end 13 of the tubing 12 plunges into the liquid 16.
- a liquid 16 such as water
- tubing 12 are thus caused to bubble in the liquid 16, so that the components of these gases soluble in the liquid 16 can dissolve therein.
- a tube 18 In the liquid 16, also immerses a tube 18, connected to the suction side of a pump 20 by means of a filter or a strainer 22, to retain the solid particles brought into the enclosure 10 by the exhaust gas.
- the pump 20 may be electric and supplied only when the motor M is in operation, or mechanical and locked on the output shaft of the motor M.
- the pump 20 delivers the liquid thus sucked into a dividing device 22, dividing this flow of liquid between two outlet pipes 24 and 26 into two substantially equal parts.
- the first outlet tubing 24 is connected to a mixer 28, placed on the exhaust gas inlet tubing 12, so that the liquid discharged by the pump 20 into the mixer 28 cannot be directed to the manifold 14 through the tubing 12, but is forced to return to the liquid 16 through the end 13 of the tubing 12.
- a non-return valve 29 in the mixer 28 may advantageously be used for this purpose. This improves the dissolution of the exhaust gas components in the liquid 16.
- the second outlet pipe 26 of the divider device 22 is connected to the inlet of a heat exchanger 30, the outlet pipe 32 of which also plunges into the liquid 16.
- the liquid 16 is thus constantly recycled, while being cooled in the heat exchanger 30. It is advantageously possible to provide for regulation of the temperature of the liquid 16, by means of a temperature 34 for driving a fan motor 36 through a servo loop 40.
- the exhaust gases thus purified can then leave the enclosure 10 by an outlet pipe 42 to be either rejected into the atmosphere, or reused, by means of a pipe symbolized by the dotted line 44, as oxidant to the entry of the internal combustion engine M.
- This latter arrangement will find a more specific application for diesel engines used on board submarine ships.
- the liquid 16 can be made up by means of a conduit 50, fitted with a valve or a tap 52 and opening into the enclosure 10.
- the used liquid 16 can be drained through a conduit 54, provided with a valve or a tap 56, and opening into the bottom of the enclosure 10.
- a conduit 54 provided with a valve or a tap 56, and opening into the bottom of the enclosure 10.
- the volume of liquid 16 in the enclosure 10 should be between one and three liters per horse engine power vapor M.
- the invention is not limited to the embodiments which have been described, but it is on the contrary liable to receive numerous modifications which will appear to a person skilled in the art.
- the enclosure 10 any shape desired to facilitate its installation on a motor vehicle without encroaching on the living space of this vehicle.
- the tubing 18 situated on the suction side of the pump 20 may have part of its length passing in outside the enclosure 10, so as to be able to change the filter 22 at each operation of renewing the liquid 16.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU27806/97A AU2780697A (en) | 1996-05-07 | 1997-05-02 | Internal combustion engine exhaust gas purification device |
EP97921921A EP0880643A1 (fr) | 1996-05-07 | 1997-05-02 | Dispositif de purification des gaz d'echappement de moteurs a combustion interne |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR96/05702 | 1996-05-07 | ||
FR9605702A FR2748517A1 (fr) | 1996-05-07 | 1996-05-07 | Dispositif de purification des gaz d'echappement de moteurs a combustion interne |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997042404A1 true WO1997042404A1 (fr) | 1997-11-13 |
Family
ID=9491915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1997/000780 WO1997042404A1 (fr) | 1996-05-07 | 1997-05-02 | Dispositif de purification des gaz d'echappement de moteurs a combustion interne |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0880643A1 (fr) |
AU (1) | AU2780697A (fr) |
FR (1) | FR2748517A1 (fr) |
WO (1) | WO1997042404A1 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0036765A2 (fr) * | 1980-03-24 | 1981-09-30 | Paccar Inc. | Laveur de gaz d'échappement pour moteurs à combustion interne |
JPS61155610A (ja) * | 1984-12-28 | 1986-07-15 | Kawasaki Heavy Ind Ltd | 内燃機関の排気浄化装置 |
JPS63314305A (ja) * | 1987-06-15 | 1988-12-22 | Kenichi Nakagawa | 内燃機関の湿式消音装置 |
US4949539A (en) * | 1989-03-14 | 1990-08-21 | Hsu Chi Chu | Muffler with a purifying system for car or motorcycle |
US5121602A (en) * | 1990-12-26 | 1992-06-16 | Mccorvey Allan F | Pollution control apparatus |
DE4208456A1 (de) * | 1992-03-17 | 1993-09-23 | Martin Kopp | Verfahren und vorrichtung zur reinigung der abgase aus verbrennungsmotoren |
DE4220850C1 (de) * | 1992-06-25 | 1993-10-07 | Alexander Lerch | Verfahren und Vorrichtung zum Entfernen von im wesentlichen festen Bestandteilen aus einem Abgasstrom |
-
1996
- 1996-05-07 FR FR9605702A patent/FR2748517A1/fr active Pending
-
1997
- 1997-05-02 EP EP97921921A patent/EP0880643A1/fr not_active Withdrawn
- 1997-05-02 AU AU27806/97A patent/AU2780697A/en not_active Abandoned
- 1997-05-02 WO PCT/FR1997/000780 patent/WO1997042404A1/fr not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0036765A2 (fr) * | 1980-03-24 | 1981-09-30 | Paccar Inc. | Laveur de gaz d'échappement pour moteurs à combustion interne |
JPS61155610A (ja) * | 1984-12-28 | 1986-07-15 | Kawasaki Heavy Ind Ltd | 内燃機関の排気浄化装置 |
JPS63314305A (ja) * | 1987-06-15 | 1988-12-22 | Kenichi Nakagawa | 内燃機関の湿式消音装置 |
US4949539A (en) * | 1989-03-14 | 1990-08-21 | Hsu Chi Chu | Muffler with a purifying system for car or motorcycle |
US5121602A (en) * | 1990-12-26 | 1992-06-16 | Mccorvey Allan F | Pollution control apparatus |
DE4208456A1 (de) * | 1992-03-17 | 1993-09-23 | Martin Kopp | Verfahren und vorrichtung zur reinigung der abgase aus verbrennungsmotoren |
DE4220850C1 (de) * | 1992-06-25 | 1993-10-07 | Alexander Lerch | Verfahren und Vorrichtung zum Entfernen von im wesentlichen festen Bestandteilen aus einem Abgasstrom |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 360 (M - 541) 3 December 1986 (1986-12-03) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 153 (M - 813) 13 April 1989 (1989-04-13) * |
Also Published As
Publication number | Publication date |
---|---|
EP0880643A1 (fr) | 1998-12-02 |
AU2780697A (en) | 1997-11-26 |
FR2748517A1 (fr) | 1997-11-14 |
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