WO2006033574A1 - Dispositif et procédé d’extraction de particules des gaz d’échappement - Google Patents

Dispositif et procédé d’extraction de particules des gaz d’échappement Download PDF

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Publication number
WO2006033574A1
WO2006033574A1 PCT/NL2005/000691 NL2005000691W WO2006033574A1 WO 2006033574 A1 WO2006033574 A1 WO 2006033574A1 NL 2005000691 W NL2005000691 W NL 2005000691W WO 2006033574 A1 WO2006033574 A1 WO 2006033574A1
Authority
WO
WIPO (PCT)
Prior art keywords
cyclone
inlet
gas flow
outlet
adjustment means
Prior art date
Application number
PCT/NL2005/000691
Other languages
English (en)
Inventor
Adrianus Johannes Heinen
Original Assignee
E-Traction Europe B.V.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35457776&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2006033574(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from NL1027093A external-priority patent/NL1027093C2/nl
Priority claimed from NL1029380A external-priority patent/NL1029380C1/nl
Application filed by E-Traction Europe B.V. filed Critical E-Traction Europe B.V.
Priority to EP05787218A priority Critical patent/EP1804951A1/fr
Publication of WO2006033574A1 publication Critical patent/WO2006033574A1/fr

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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
    • F01N3/037—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • 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
    • F01N13/011—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 two or more purifying devices arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B35/00—Engines characterised by provision of pumps for sucking combustion residues from cylinders
    • F02B35/02—Engines characterised by provision of pumps for sucking combustion residues from cylinders using rotary pumps
    • 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 invention relates to a device and method for cleaning exhaust gases from particles, particularly from soot particles, and a vehicle provided with such a device.
  • GB-A-2.215.645 discloses a device in which by means of a cyclone, particles are separated from exhaust fumes. The cross-section of the inlet of the cyclone is adjusted. Changing operational conditions of the combustion engine however still cannot be optimally dealt with in this way.
  • US-A-3.253.400 describes an air-treatment assembly for removing among others lead particles from exhaust fumes.
  • the counter pressure of a cyclone separator becomes too large, the surplus is guided past the cyclone separator.
  • a problem with such known devices is having the cyclone function under changing conditions as well, particularly under all operational conditions of an engine.
  • the invention provides a device for cleaning exhaust gases from particles, particularly from soot particles, comprising a first inlet for the exhaust gases, an outlet, at least one cyclone between the inlet and the outlet, and adjustment means for adjusting the gas flow through the cyclone.
  • the adjustment means comprise a first measuring device for determining the pressure drop over the device, particularly over the cyclone.
  • the pressure drop may also be derived by means of other measuring parameters.
  • the adjustment means comprise a second measuring device between the first inlet and the cyclone, for measuring at least one parameter of the gas flow, selected from the pressure, the current velocity, the flow rate and the temperature.
  • the adjustment means comprise a second inlet between the first inlet and the cyclone means, for letting in additional air.
  • the supply of exhaust gases drops below a minimum value for letting the cyclone function any longer, supply of additional air may yet offer a flow for the cyclone to operate.
  • the second inlet is provided with an adjustable admission valve, operationally connected to the adjustment means. In this way the functioning of the cyclone under practically all conditions can be guaranteed.
  • the cyclone In one embodiment of the invention according to the invention it is furthermore provided with a turbopump between the first inlet and the cyclone means, particularly between the second inlet and the cyclone means, operationally connected to the adjustment means.
  • a turbopump between the first inlet and the cyclone means, particularly between the second inlet and the cyclone means, operationally connected to the adjustment means.
  • the turbopump is connected to an electromotor for driving the turbopump, particularly an electromotor provided with permanent magnets.
  • an electromotor may drive the turbopump, but may also serve as generator.
  • the adjustment means are furthermore provided with an adjustment device, operationally connected to the first and/or second measuring device for receiving measuring data therefrom, and to the turbopump and/or adjustment valve, and with a set value for at least one of the measuring data, for by means of the turbopump and/or the adjustment valve keeping the measuring data measured at the set value.
  • the adjustment device for instance is a computer, provided with a memory or data storage, in which target values are included that guarantee the operation of the cyclone device
  • the computer by means of the software, is able to perform the steps of comparing the measured values to the target values, and give adjustment instructions to the adjustment valve and/or the electromotor for adjusting the air supply (flow rate, speed) for a proper operation of the device.
  • the adjustment device for instance is a computer, provided with a memory or data storage, in which target values are included that guarantee the operation of the cyclone device
  • the computer by means of the software, is able to perform the steps of comparing the measured values to the target values, and give adjustment instructions to the adjustment
  • cyclones but one may be provided with adjustment means, such as valves, preferably in the cyclone outlets.
  • adjustment means such as valves
  • An advantage thereof is that the device becomes very simple.
  • the adjustment means When the exhaust gas flow for instance is below a first set value only a first cyclone that is always fully open will be switched on.
  • the adjustment means When the exhaust gas flow rises above a first set value the adjustment means will in one of the additional cyclones open a setting means such as a valve so that the exhaust gases now flow through two cyclones.
  • the valve of the additional cyclone will be closed again.
  • a cyclone device optionally made of heat resistant material, such as metal or ceramics or particular synthetic materials, is particularly suitable as cyclone device in the device according to the invention.
  • a cyclone particularly a vortex is generated.
  • the cyclone or cyclone separator that can be used in the device according to the invention and which turned out to be highly efficient has an inlet tangential to the cyclone, and a central outlet. The inlet debouches in a cylindrical chamber part that tapers further in a tapered, conical part.
  • the opposite end of the cylindrical chamber is provided with an outlet extending in the cylindrical chamber with the longitudinal axis to the axis of the cylindrical chamber.
  • the end of the conical part is provided with a collection chamber for the particles.
  • the cross- section of the collection chamber suddenly increases with respect to the end of the conical part.
  • Such a cyclone is also called a counter-flow cyclone. In there a gas comes into rotation along the inner wall, enters the conical part in which the speed of rotation further increases. At the end the flow direction reverses and still rotating air flows back to the outlet which is provided with an axially positioned pipe that extends into the cylindrical chamber part. Due to the suddenly increasing diameter of the collection chamber the particles detach themselves from the gas flow.
  • the device according to the invention is provided with at least two cyclones connected in parallel, wherein the inlet of the device is connected to the outlet of a combustion engine, preferably a diesel engine.
  • a first cyclone is dimensioned to be active at a gas flow corresponding to a stationary number of revolutions of the diesel engine.
  • the cyclone is of the Stairmand type. Said type is well-known from references.
  • Particularly at least one cyclone is dimensioned that the pressure drop of the minimal operation corresponds to the combustion engine running stationary.
  • the cyclones when provided with at least two cyclones, have a substantially equal pressure drop at a free flow-through. As a result a simple adjustment algorithm is possible.
  • the cyclones are identical.
  • the adjustment means are further provided with means for determining the gas speed at the inlet of the cyclone.
  • Such means may be a gas flow meter.
  • Such means may also be a revolution counter determining the number of revolutions (rotational speed, RPM) of the combustion engine.
  • RPM rotational speed
  • the outlet gas flow related to a certain number of revolutions may be empirically determined.
  • the temperature of the exhaust gas may also be determined.
  • the adjustment means may for instance be provided with a memory provided with a table or functional relation, particularly a calculation module for determining a gas flow from the measuring values.
  • the means for determining the gas flow are provided with a calculation unit for determining the gas flow, particularly the flow rate and/or current velocity, from the measurements from the said various measuring devices.
  • the adjustment means comprise a valve, particularly an adjustable valve, in the outlet of at least one cyclone.
  • a valve in the outlet of the cyclone the gas flow may be adjusted by the cyclones such that there is almost constantly a pressure in the cyclone, so that immediately when opening the valve there is sufficient speed in the cyclone to have a cleaning effect.
  • it has such an advantage to an even greater extent.
  • the cleaning device will preferably comprise at least two cyclones, wherein a first cyclone is designed to be operative at a gas flow related to the stationary number of revolutions of the combustion engine. In practice this will usually be 800 revolutions per minute. Usually said cyclone is designed to be active at a gas flow speed of 1 5-20/23 m/s. The cyclone is then designed to have an effectiveness of approximately 96% with those parameters. A second cyclone can be designed to be effective as of a higher number of revolutions.
  • the adjustment device will close off the first cyclone, for instance by closing off a valve in its outlet, and open the second cyclone, for instance by opening a valve in for instance the outlet of the second cyclone.
  • the adjustment device will choose to open the first cyclone again.
  • the adjustment device may also choose to open a third cyclone, together with the second, or instead thereof. In this way the adjustment device will select the optimal combination of available cyclones to clean the gas flow offered.
  • the adjustment device as described may then have the choice of various cyclones of which at least a number have a different operational range.
  • a relatively small first cyclone may be selected to already realise a proper cleaning when for instance driving away.
  • the adjustment device will not change cyclones or add an additional cyclone until the pressure drop according to calculation will be large enough for a gas flow in each of the cyclones that is in the operational range of said cyclones.
  • the adjustment device is provided with a memory with the operational range for each cyclone in the device, and measuring means for determining the pressure drop over each of the cyclones.
  • the adjustment value at which a cyclone is switched on will usually be higher than the value at which said cyclone will be switched off. In this way a more optimal operation is aimed at.
  • the adjustment means comprise measuring means, wherein the measuring means comprise pressure sensors in the inlet and the outlet of the device.
  • the adjustment means comprise a comparing device for comparing the measured pressure values in the inlet and the outlet of the device, and the adjustment means are adapted for giving a control signal to the operation for a valve in an inlet or outlet of the cyclone or at least one of the cyclones, when the outcome of the comparison complies with a pre-set criterion.
  • the adjustment means comprise a computer for calculating parameters of the offered gas flow from the measuring values from the measuring means, memory means provided with set values for each cyclone in the device, and adjustment means for based on a comparison of the parameters regarding the gas flow and the setting parameters setting the gas flow through the cyclone.
  • the inlet of the device is connected to the outlet of a combustion engine, wherein the device further comprises means for determining the number of revolutions of the combustion engine, calculating means, connected to the means for determining the number of revolutions, for determining parameters regarding the gas flow, particularly the flow rate and/or current velocity, based on the number of revolutions.
  • the adjustment algorithm of the adjustment device can be kept relatively simple. In that case it is usually possible to opt for two identical cyclones, and in many cases two cyclones will suffice. If for instance in a vehicle having a so-called hybrid drive, or electric drive with a generator provided with a combustion engine, a fixed number of numbers of revolutions, for instance three setting numbers of revolutions, for the combustion engine is opted for, the operation of the device can be adjusted such that the operation of the device will almost always be optimal. From the selected number of revolutions the exhaust gas flow can be derived, optionally by means of additional measurement determinations such as temperature, pressure drop, etc. On the basis of said exhaust gas flow it can be determined how many cyclones need to be switched on, for instance by opening the valves in the outlets of those cyclones. The adjustment can then be relatively simple.
  • the measuring device and the adjustment device are adapted for determining gas flow parameters wherein the time interval between two determinations is smaller than the time scale of changes in the gas flow.
  • the invention regards a device for cleaning exhaust gases, such as from a combustion engine, from particles, for instance soot particles, comprising a first inlet, connectable to an outlet of a combustion engine, an outlet, at least two cyclones between the inlet and the outlet, and adjustment means for adjusting the gas flow through the cyclones, wherein each cyclone is provided with a cyclone inlet and a cyclone outlet, wherein the cyclone inlets are interconnected in parallel to the inlet and at least all but one cyclone outlets are provided with means for adjusting the gas flow through the cyclone.
  • said device is provided with adjustment means in the outlet of each cyclone.
  • the adjustment means comprise an adjustable valve, preferably an adjustable butterfly valve.
  • the adjustment means are provided with means for determining gas flow through the inlet, preferably means for determining the flow rate of the gas flow in the inlet.
  • the determining means comprise measuring means for measuring a quantity selected from the group of temperature of the gas flow in the inlet, current velocity of the gas flow in the inlet, pressure of the gas flow in the inlet.
  • the invention regards a device for cleaning exhaust gases originating from a combustion engine from particles, particularly soot particles, comprising a first inlet, an outlet, at least one cyclone cleaner, adjustment means for adjusting the gas flow through the at least one cyclone cleaner, measuring means for determining at least one gas flow parameter of the overall gas flow through the device, and at least one valve for closing off a cyclone cleaner and which is/are operationally connected to the adjustment means, wherein the adjustment means are adapted for opening at least one valve when the gas flow parameter complies with a first predetermined condition and closing it when the gas flow parameter complies with a second predetermined condition.
  • the invention regards a device for cleaning exhaust gases originating from a combustion engine from particles, particularly soot particles, comprising: a first inlet; an outlet; at least two cyclone cleaners, each provided with a cyclone inlet and a cyclone outlet and interconnected operationally and in parallel between the inlet and the outlet; - adjustment means for adjusting the gas flow through each of the cyclone cleaners; measuring means for determining at least one gas flow parameter of the overall gas flow through the device and operationally connected to the adjustment means, and
  • each cyclone cleaner preferably in the outlet and operationally connected to the adjustment means, wherein the adjustment means are adapted for:
  • the invention regards a method for cleaning exhaust gases of a combustion engine in a vehicle from particles, using a device comprising a first inlet, an outlet, at least one cyclone between the inlet and the outlet, each cyclone having an operational range, and adjustment means for adjusting the gas flow through the at least one cyclone, comprising a computer, operationally connected to adjustment means for adjusting the gas flow through the at least one cyclone and to measuring means for measuring gas flow parameters, wherein the method comprises the steps: determining gas flow parameters of the gas flow in the device; calculating the number of cyclones needed for treating the gas flow from the operational range of each cyclone and a combination thereof and the gas flow parameters, and selecting the necessary cyclones; based on the calculated number of necessary cyclones setting the adjustment means for allowing gas flow to flow through the selected cyclones; repeating the said steps during the operation of the combustion engine.
  • the invention regards a vehicle comprising a device for generating electric power, which device is provided with a combustion engine having an outlet, and a device for cleaning exhaust gases from particles as described in the application, wherein the outlet of the combustion engine is connected to the inlet of the device for cleaning.
  • Figure 1 shows a side view of a device according to the invention
  • Figure 2 shows a top view of figure 1 ;
  • Figure 3 shows a cut-away view of a Stairmand cyclone adapted to the present invention
  • Figure 4A shows a top view of a further embodiment of the invention.
  • Figure 4B shows a side view of figure 4A.
  • Figure 1 shows a schematic side view of a device according to the invention, in this case mounted on the upper side of a bus.
  • the device according to the invention is provided with an inlet 1 , connected to an outlet of in this example a generator set or diesel engine.
  • a turbopump 2 is provided in the inlet 1 , which turbopump is drivable by means of electromotor 7. If the supply of air via the inlet 1 is very large, the turbine 2 is able to supply power by means of electromotor 7, which is then functioning as a generator.
  • the device according to the invention is furthermore provided with a cyclone device 4 which by means of inlet 3 is connected to the inlet 1 .
  • the outlet 5 of the cyclone device 4 is connected to outlet 8 of the device according to the invention, by means of a second turbine 6', which turbine is also connected to electromotor 7.
  • the particles that have been separated by means of the cyclone device 4 are collected in a holder or container 9.
  • the device was tested on a Mitsubishi 3.0 litre diesel engine. Said engine was used for driving a generator with numbers of revolutions set at 1000, 1700 and 2400 revolutions per minute.
  • FIG 2 a top view of the device according to figure 1 is shown, in which additionally the adjustment means 2 according to the invention have been shown, provided with an adjustment device 12, particularly a computer system provided with data entries and software and memory and calculating means, and connection lines are also indicated in which it is indicated how the various components of the device communicate with the adjustment device 12.
  • an adjustment device 12 particularly a computer system provided with data entries and software and memory and calculating means, and connection lines are also indicated in which it is indicated how the various components of the device communicate with the adjustment device 12.
  • the top view further shows the second inlet 15 provided with an adjustment valve 10 which is connected to the adjustment device 12.
  • the top view shows the outlet 8 of the device which can be provided with various measuring sensors 14, such as a current meter, a temperature meter, or an ⁇ -sensor or the like.
  • the inlet 5 of the cyclone device is provided with measuring devices 13, for instance a current meter, temperature meter or ⁇ -probe which is/are also connected to the adjustment device 12.
  • the operation of the device according to the invention is as follows.
  • the exhaust fumes from a generator or engine for instance a diesel generator set or diesel engine
  • the turbo inlet 2 are supplied to inlet 3 of the cyclone device 4.
  • the flow rate and/or the temperature or for instance the carbon monoxide content of the exhaust fumes is measured.
  • Said measuring values are supplied to adjustment device 12.
  • the adjustment device 12 in the memory there is a so-called "sollwert" or target value (set value) of one or more of said parameters.
  • the air supply to the cyclone device is adjusted by means of the turbopump 2.
  • optionally supply valve 10 which is also connected to the adjustment device 12
  • extra air can be allowed in via air inlet 15.
  • the flow rate and/or temperature and/or carbon monoxide content may also optionally be measured via the measuring sensors 14 in the outlet of the device, and optionally based on said measuring values further operation of the turbopumps or the inlet valve can be effected.
  • Figure 3 shows a view in cut-away condition of a cyclone or cyclone separator according to the so-called Stairmand design, adapted to the device according to the invention.
  • the cyclone 4 has a tangential inlet 3 which debouches in a cylindrical chamber 30.
  • the cylindrical chamber 30 debouches in or is continued in a tapering conical part 31 .
  • the conical part 31 debouches in a collection chamber 9.
  • the collection chamber 9 has an outer case 9b and fitting therein, a removable reservoir 9a.
  • the cyclone 4 furthermore has an outlet 5 provided with a tube part 32 which extends in the cylindrical chamber 30, preferably beyond the inlet 3.
  • the cylindrical chamber 30 has a length I2 and a diameter D.
  • Inlet 3 has a width I4.
  • Pipe part 32 has a section extending in the cylindrical chamber 30 and having a length I3.
  • the pipe part 32 has a diameter d.
  • the conical part 31 has a length 11 , and the debouchment has a diameter d2.
  • the reservoir 9a has an inlet opening having diameter d2.
  • Figures 4A and 4B show a top view and a side view, respectively, of an embodiment of the device according to the invention.
  • two cyclones as shown in figure 3 are used.
  • additional cyclones can be opted for.
  • Said embodiment is experimentally used on the same configuration with diesel engine and generator set as described in figure 1 .
  • the inlet 1 of the device debouches in a nozzle (manifold) or debouchment 40 which is connected to the inlets 3, 3' of the cyclones.
  • the outlets 5, 5' are subsequently connected to the outlet 8 of the device.
  • an adjustable valve 41 for instance an adjustable butterfly valve, is present between the outlet 5' of the second cyclone and the outlet 8 of the device.
  • the valve 41 is provided with a drive unit 42 for adjusting the valve.
  • the drive unit 42 is operationally connected to adjustment unit 12.
  • the adjustment unit 12 is further operationally connected to measuring means, such as for instance a temperature meter, a current meter, a revolution counter for indicating the number of revolutions of an engine of which the outlet is connected to the inlet 1 of the device.
  • the outlet 8 of the device is connected to silencers 42 that debouch in outlet 43.
  • the silencers 42 can first be connected to the engine outlet, and behind it the device according to the invention. After the device according to the invention additional cleaning apparatuses can be connected such as for instance electrostatic filters, catalysts and the like.
  • the device is used on a 3.0 litre Mitsubishi diesel engine.
  • Each cyclone is designed to be operative in a range of approximately 15-20 m/s.
  • the pressure is measured in the inlet of the device and in the outlet, and the difference pressure is determined every other 1 millisecond and an advancing average is determined, in this case of 10 determinations.
  • valve of the second cyclone opens at a 70 mbar pressure drop and then closes at a 20 mbar pressure drop.
  • the valve furthermore remains at least approximately 1 -10 seconds open, in one embodiment approximately 10 seconds open.
  • the device is engineered as follows.
  • the combustion engine on which the device must be used is then taken as starting point.
  • the range of the gas flow produced while operative is determined.
  • the dimensions of the device are limited to boundaries.
  • the gas flow is too large for one single cyclone it is calculated whether two cyclones suffice for being able to treat the gas flow.
  • the outlets of all but one cyclones are subsequently provided with an adjustable valve.
  • the ranges of the various cyclones are entered. It will be easiest when all cyclones have the same dimensions. If however there is question of a very large range it may also be opted for to use cyclones of various dimensions.
  • valves When operative, all valves are closed at the start of the operation of the combustion engine, and the exhaust gas flows through one cyclone only. It may even be opted for to close off all outlets of all cyclones, and not until the pressure or the pressure difference reaches a certain value or drops below a certain pre-set value, a valve is opened. Said pressure may be selected such that indeed the combustion engine does not stall when starting. In that case also a part of the particles that are for instance produced when starting is collected.
  • the adjustment unit determines at time intervals from the gas flow whether the supply of exhaust gas is large enough for switching on a next cyclone, on the basis of for instance the pressure drop over the cyclone system, that means all cyclones.
  • the adjustment unit will order to switch off one or more cyclones, preferably by blocking their outlets.
  • the switch-on limit value and the switch-off limit value differ, meaning that an adjustable degree of hysteresis has been built in.
  • the adjustment device preferably is provided with a combination means to combine the operational ranges of the various available cyclones, and a selection means for selecting a combination of cyclones from the available combinations such that the measured gas flow parameter or parameters, preferably the pressure drop over the cyclone system, is in the selected operational range, preferably as much near the means of the operational range.
  • the adjustment device comprises a computer provided with software for performing the above-mentioned steps, or a logical circuit, designed for performing the above-mentioned steps.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

La présente invention concerne un dispositif pour retirer des particules des gaz d’échappement, notamment les particules de suie, comprenant une première entrée, une sortie, des moyens de réalisation d’au moins un cyclone entre l’entrée et la sortie et des moyens de réglage pour régler l’écoulement de gaz à travers l’au moins un cyclone.
PCT/NL2005/000691 2004-09-23 2005-09-23 Dispositif et procédé d’extraction de particules des gaz d’échappement WO2006033574A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05787218A EP1804951A1 (fr) 2004-09-23 2005-09-23 Dispositif et procédé d extraction de particules des gaz d échappement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1027093A NL1027093C2 (nl) 2004-09-23 2004-09-23 Inrichting voor het verwijderen van deeltjes uit afgassen.
NL1027093 2004-09-23
NL1029380 2005-06-30
NL1029380A NL1029380C1 (nl) 2005-06-30 2005-06-30 Inrichting en werkwijze voor het verwijderen van deeltjes uit afgassen.

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WO2006033574A1 true WO2006033574A1 (fr) 2006-03-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2642095A1 (fr) * 2010-11-16 2013-09-25 Usui Kokusai Sangyo Kaisha Limited Dispositif de traitement des gaz d'échappement pour moteur diesel
DE102015015817A1 (de) * 2015-12-02 2017-06-08 Hans-Joachim Lange Abgasfilteranlage für Kraftfahrzeuge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253400A (en) * 1961-08-07 1966-05-31 Union Oil Co Exhaust treatment apparatus and method
US3495401A (en) * 1967-10-23 1970-02-17 Ethyl Corp Exhaust system
GB2215645A (en) * 1988-03-17 1989-09-27 Ford Motor Co Separator for IC engine exhaust system
US6379411B1 (en) * 2000-04-26 2002-04-30 Bechtel Bwxt Idaho, Llc Two stroke engine exhaust emissions separator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253400A (en) * 1961-08-07 1966-05-31 Union Oil Co Exhaust treatment apparatus and method
US3495401A (en) * 1967-10-23 1970-02-17 Ethyl Corp Exhaust system
GB2215645A (en) * 1988-03-17 1989-09-27 Ford Motor Co Separator for IC engine exhaust system
US6379411B1 (en) * 2000-04-26 2002-04-30 Bechtel Bwxt Idaho, Llc Two stroke engine exhaust emissions separator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2642095A1 (fr) * 2010-11-16 2013-09-25 Usui Kokusai Sangyo Kaisha Limited Dispositif de traitement des gaz d'échappement pour moteur diesel
EP2642095A4 (fr) * 2010-11-16 2014-11-05 Usui Kokusai Sangyo Kk Dispositif de traitement des gaz d'échappement pour moteur diesel
DE102015015817A1 (de) * 2015-12-02 2017-06-08 Hans-Joachim Lange Abgasfilteranlage für Kraftfahrzeuge
DE102015015817B4 (de) * 2015-12-02 2017-06-22 Hans-Joachim Lange Abgasfilteranlage für Kraftfahrzeuge

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