EP0143956B1 - Machine à ondes de pression - Google Patents
Machine à ondes de pression Download PDFInfo
- Publication number
- EP0143956B1 EP0143956B1 EP84112407A EP84112407A EP0143956B1 EP 0143956 B1 EP0143956 B1 EP 0143956B1 EP 84112407 A EP84112407 A EP 84112407A EP 84112407 A EP84112407 A EP 84112407A EP 0143956 B1 EP0143956 B1 EP 0143956B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure wave
- gas
- cells
- catalyst
- rotor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F13/00—Pressure exchangers
-
- 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
-
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/32—Engines with pumps other than of reciprocating-piston type
- F02B33/42—Engines with pumps other than of reciprocating-piston type with driven apparatus for immediate conversion of combustion gas pressure into pressure of fresh charge, e.g. with cell-type pressure exchangers
-
- 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
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2254/00—Heat inputs
- F02G2254/10—Heat inputs by burners
- F02G2254/11—Catalytic burners
Definitions
- the present invention relates to a gas dynamic pressure wave machine according to the preamble of the claim.
- catalysts are used in both gasoline and diesel engines in the exhaust system.
- gasoline engines these consist of ceramic filters coated with catalyst materials, for example platinum powder. This reduces the emissions of pollutants in the exhaust gases, such as carbon monoxide, unburned hydrocarbons and nitrogen oxides.
- pollutants such as carbon monoxide, unburned hydrocarbons and nitrogen oxides.
- the most common exhaust gas catalysts are so-called three-way catalysts, ie NO is reduced to N 2 , CO is oxidized to C0 2 , the oxygen from NO being converted into this compound, and the hydrocarbons are oxidized.
- These catalysts work with lambda values, ie with excess air values of 1 ⁇ 0.02. A lambda probe is required to adjust the mixture accordingly.
- Similar catalysts are used for diesel engines, with ceramic or metallic support materials also being used.
- the task of the diesel engine is pure oxidation, because a reduction is not possible due to the excess air.
- a catalytic converter therefore has the task of burning carbon monoxide, hydrocarbons and soot.
- soot particle filters are used in diesel engines to reduce the soot impact, and these can also be catalytically coated in order to lower the ignition temperature of the accumulated soot and thus burn the soot particles. Filter regeneration can then be achieved.
- the exhaust gas emission is also influenced favorably.
- the three-way catalytic converter When charging a gasoline engine with a gas-dynamic pressure wave charger, the three-way catalytic converter must be arranged on the high-pressure side, since the excess air in the low-pressure exhaust can reach very high values as a result of flushing the cellular wheel of the pressure wave charger, and thus the condition for the lambda value 1 ⁇ 0. 02 is not to be fulfilled. Furthermore, when the catalyst is arranged in the low-pressure exhaust, its back pressure rises sharply, so that adequate flushing of the cells of the cellular wheel would not be ensured.
- CH-A-478 339 It is known from CH-A-478 339 to provide the cellular wheel with a coating in a gas-dynamic pressure wave machine for charging internal combustion engines.
- This is a coating made of a poorly heat-conducting material, for example glass or ceramic, in particular enamel.
- the purpose of this coating is to delay the heat absorption of the rotor in order to reduce the thermal expansion of the rotor, which generally heats up faster and more strongly than the housing. This is to minimize leakage losses at the front of the rotor.
- the described nitrogen reduction due to the blade coating is not transferable to pressure wave machines, since there due to the alternating loading of the cells Air and exhaust gas the oxygen content of the cell content is much too high.
- the supercharging unit can also perform the function of a catalyst for exhaust gas detoxification in supercharged internal combustion engines. It can take over the oxidation effect alone or in addition to a conventional catalyst.
- the three-way catalytic effect in the cell rotor is not possible, the reduction from NO to N 2 is not possible due to the excess air.
- the catalytic effect of the rotor satisfies the oxidation requirements of the diesel engine; in the gasoline engine, it only meets the pure oxidation requirements.
- 1 denotes the hub of the cell wheel of a pressure wave machine, which is formed from individual cells 2 that conduct the air and gas flow and which are encased on the outside by a jacket 3.
- the surfaces of the individual cells 2 surrounded by exhaust gas and air are coated with a catalyst material 4 known per se, for example platinum or rhodium.
- a surface-enlarging ceramic underlayer is applied to the metal rotor in a conventional manner, to which the actual catalytic material is then applied.
- the surface area can also be increased by increasing the number of cells and / or the number of floods of the rotor.
- the cellular wheel 1 In an embodiment of the cellular wheel 1 according to FIG. 2, it consists of a ceramic material.
- the Kataiysatormateriais 4 can be sprayed onto the ceramic cells 2 either before firing the cellular wheel 1 or only after the firing process in an additional operation.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
- Supercharger (AREA)
Claims (1)
- Machine gazodynamique à ondes de pression pour la suralimentation de moteurs à combustion, se composant essentiellement d'un corps de stator dans lequel est disposée une roue à cellules formée de cellules individuelles, les cellules étant entourées d'une enveloppe (3) et étant alimentées alternativement en air et en gaz d'échappement, et où le contact entre les fluides de travail avec les parois des cellules est favorisé, pendant la marche de la machine, par suite de la force centrifuge et de la forte turbulence provoquées par le processus des ondes de pression, caractérisée en ce qu'au moins les surfaces des cellules individuelles (2) de la roue à cellules (3), qui sont exposées au courant de gaz, présentent un revêtement constitué d'un matériau catalyseur (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH640283 | 1983-11-30 | ||
CH6402/83 | 1983-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0143956A1 EP0143956A1 (fr) | 1985-06-12 |
EP0143956B1 true EP0143956B1 (fr) | 1988-05-04 |
Family
ID=4309006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84112407A Expired EP0143956B1 (fr) | 1983-11-30 | 1984-10-15 | Machine à ondes de pression |
Country Status (4)
Country | Link |
---|---|
US (1) | US4744213A (fr) |
EP (1) | EP0143956B1 (fr) |
JP (1) | JPS60135615A (fr) |
DE (1) | DE3470904D1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19532170A1 (de) * | 1995-08-31 | 1997-03-06 | Ppv Verwaltungs Ag | Verfahren zur Bildung eines platinhaltigen Überzugs auf einem Substrat und Vorrichtung zur Durchführung des Verfahrens |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3813947A1 (de) * | 1988-04-26 | 1989-11-09 | Asea Brown Boveri | Verfahren zum aufbringen einer aus edelmetallen und/oder edelmetallverbindungen bestehenden katalysatorschicht auf einen traeger aus keramischem material |
DE3813946A1 (de) * | 1988-04-26 | 1989-11-09 | Asea Brown Boveri | Verfahren zum aufbringen einer aus edelmetallen und/oder edelmetallverbindungen bestehenden katalysatorschicht auf einen traeger aus keramischem material |
DE3922019A1 (de) * | 1988-09-05 | 1990-04-05 | Richter Gerhard | Vorrichtung zum verbrennen der kontaminierten russpartikel in den abgasen von dieselmotoren |
DE3900571A1 (de) * | 1989-01-11 | 1990-07-19 | Asea Brown Boveri | Verfahren zum aufbringen einer aus edelmetallen und/oder edelmetallverbindungen bestehenden katalysatorschicht auf einen traeger aus keramischem material |
DE4210543A1 (de) * | 1992-03-31 | 1993-10-07 | Asea Brown Boveri | Druckwellenmaschine |
EP0576716A1 (fr) * | 1992-07-03 | 1994-01-05 | Abb Research Ltd. | Echangeur de pression |
US5284123A (en) * | 1993-01-22 | 1994-02-08 | Pulso Catalytic Superchargers | Pressure wave supercharger having a stationary cellular member |
AT408785B (de) * | 1995-11-30 | 2002-03-25 | Blank Otto Ing | Aufladeeinrichtung für die ladeluft einer verbrennungskraftmaschine |
US5839416A (en) * | 1996-11-12 | 1998-11-24 | Caterpillar Inc. | Control system for pressure wave supercharger to optimize emissions and performance of an internal combustion engine |
DE19703522A1 (de) * | 1997-01-31 | 1998-03-19 | Daimler Benz Ag | Verbrennungsmotoranlage mit Druckwellenlader |
US6460342B1 (en) | 1999-04-26 | 2002-10-08 | Advanced Research & Technology Institute | Wave rotor detonation engine |
WO2002004794A2 (fr) | 2000-07-06 | 2002-01-17 | Advanced Research & Technology Institute | Chambre de combustion multicanaux compartimentee |
SE520559C2 (sv) * | 2001-02-02 | 2003-07-22 | Volvo Lastvagnar Ab | Arrangemang och förfarande vid tryckluftsystem för fordon |
US6845620B2 (en) | 2001-07-06 | 2005-01-25 | Mohamed Razi Nalim | Rotary ejector enhanced pulsed detonation system and method |
US7555891B2 (en) * | 2004-11-12 | 2009-07-07 | Board Of Trustees Of Michigan State University | Wave rotor apparatus |
FR2878568A1 (fr) * | 2004-11-29 | 2006-06-02 | Renault Sas | Dispositif de suralimentation par ondes de pression d'un moteur a combustion interne avec des moyens de depollution des gaz d'echappement et moteur equipe d'un tel dispositif |
FR2900971A3 (fr) * | 2006-05-12 | 2007-11-16 | Renault Sas | Systeme d'entrainement pour vehicule automobile et procede de commande d'un tel systeme |
EP1878879A1 (fr) * | 2006-07-14 | 2008-01-16 | Abb Research Ltd. | Turbocompresseur à revêtement catalytique |
DE102007021367B4 (de) * | 2007-05-04 | 2008-12-24 | Benteler Automobiltechnik Gmbh | Gasdynamische Druckwellenmaschine |
EP2450121A1 (fr) * | 2010-11-03 | 2012-05-09 | MEC Lasertec AG | Procédé de fabrication d'une roue cellulaire |
DE102011118765A1 (de) * | 2011-11-17 | 2013-05-23 | Benteler Automobiltechnik Gmbh | Ottomotor mit Druckwellenlader und Dreiwegekatalysator |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL175314C (nl) * | 1949-05-24 | Ciba Geigy | Werkwijze voor het bereiden van een produkt, bestaande uit een dispersie van pigment in polyetheen en/of polypropeen. | |
US3084511A (en) * | 1960-08-26 | 1963-04-09 | Gen Electric | Wave type pressure exchanger with overall pressure rise |
GB993288A (en) * | 1962-11-15 | 1965-05-26 | Dudley Brian Spalding | Improvements in and relating to pressure exchangers |
CH478339A (de) * | 1963-08-14 | 1969-09-15 | Bbc Brown Boveri & Cie | Druckwellenmaschine |
CH552135A (de) * | 1972-11-29 | 1974-07-31 | Bbc Brown Boveri & Cie | Verfahren zur verminderung der schadstoffemission von verbrennungsmotoren und einrichtung zur durchfuehrung des verfahrens. |
US4122673A (en) * | 1973-09-28 | 1978-10-31 | J. Eberspacher | Internal combustion engine with afterburning and catalytic reaction in a supercharger turbine casing |
JPS5840524B2 (ja) * | 1975-09-10 | 1983-09-06 | サンスタ−株式会社 | 歯磨組成物 |
US4197700A (en) * | 1976-10-13 | 1980-04-15 | Jahnig Charles E | Gas turbine power system with fuel injection and combustion catalyst |
US4369020A (en) * | 1980-05-05 | 1983-01-18 | Ford Motor Company | Rotor seal for wave compression turbocharger |
-
1984
- 1984-10-15 EP EP84112407A patent/EP0143956B1/fr not_active Expired
- 1984-10-15 DE DE8484112407T patent/DE3470904D1/de not_active Expired
- 1984-11-30 JP JP59252098A patent/JPS60135615A/ja active Pending
-
1986
- 1986-09-02 US US06/901,978 patent/US4744213A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19532170A1 (de) * | 1995-08-31 | 1997-03-06 | Ppv Verwaltungs Ag | Verfahren zur Bildung eines platinhaltigen Überzugs auf einem Substrat und Vorrichtung zur Durchführung des Verfahrens |
Also Published As
Publication number | Publication date |
---|---|
US4744213A (en) | 1988-05-17 |
EP0143956A1 (fr) | 1985-06-12 |
JPS60135615A (ja) | 1985-07-19 |
DE3470904D1 (en) | 1988-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0143956B1 (fr) | Machine à ondes de pression | |
EP0238916B1 (fr) | Procédé et dispositif de régénération de systèmes de filtres pour gaz d'échappement | |
EP0314129B1 (fr) | Installation de catalyseur | |
DE19504208B4 (de) | Abgaskonverter mit einem Katalysator und einem diesem vorgeschalteten Brenner | |
DE3842282C2 (de) | Vorrichtung zur Verminderung der Abgasemission eines Dieselmotors | |
DE102008013773B4 (de) | Turboladeranordnung mit Katalysatorbeschichtung | |
EP1747356B1 (fr) | Corps support de catalyseur destine a un convertisseur catalytique employe a proximite du moteur | |
DE10103771A1 (de) | Verfahren zur Wiederherstellung der katalytischen Aktivität eines Katalysators, welcher im Abgastrakt eines Dieselmotors angeordnet ist und wenigstens eine Oxidationsfunktion aufweist | |
EP1664519B1 (fr) | Echangeur de chaleur de gaz d'echappement, notamment refroidisseur de gaz d'echappement pour le recyclage de gaz d'echappement dans des vehicules automobiles | |
WO2009010335A1 (fr) | Post-traitement de gaz d'échappement en amont d'un turbocompresseur | |
DE4007516A1 (de) | Dieselmotor | |
AT501463A4 (de) | Hybridvorrichtung zum entfernen von russpartikeln aus dieselabgasen | |
EP0796389B1 (fr) | Installation catalytique refroidie par eau | |
EP3642462B1 (fr) | Tuyau d'échappement, moteur à combustion interne et véhicule automobile | |
DE3939921C2 (fr) | ||
DE3826600C2 (de) | Abgasturbolader mit Abgasreinigungsvorrichtung | |
DE2348866A1 (de) | Verfahren zur reinigung der abgase von mit fluessigem brennstoff betriebenen motoren und einrichtung zur durchfuehrung des verfahrens | |
EP0215014A1 (fr) | Procédé de production d'un catalyseur. | |
DE2401204A1 (de) | Katalytischer abgasreaktor fuer verbrennungsmotoren | |
DE3322439A1 (de) | Einrichtung zur verminderung der schadstoffanteile in den abgasen eines verbrennungsmotors | |
DE112008001899T5 (de) | Filtervorrichtung zur Reduzierung von Kraftfahrzeug-Auspuffrauchgas | |
DE3509969A1 (de) | Abgaskatalysatorpatrone zur nachverbrennung und schalldaempfung an brennkraftmaschinen | |
DE102019109442A1 (de) | Abgasnachbehandlungssystem sowie Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors | |
DE102008035271B4 (de) | Verfahren und Einrichtung zur Verarbeitung von Abgasen (Dieselmotor) | |
DE2235568A1 (de) | Einrichtung zur abgasreinigung durch katalytische umsetzung und abgasrueckfuehrung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): CH DE GB IT LI |
|
17P | Request for examination filed |
Effective date: 19850628 |
|
17Q | First examination report despatched |
Effective date: 19860325 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BBC BROWN BOVERI AG |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE GB IT LI |
|
REF | Corresponds to: |
Ref document number: 3470904 Country of ref document: DE Date of ref document: 19880609 |
|
ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19881031 Ref country code: CH Effective date: 19881031 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19890930 Year of fee payment: 6 |
|
ITTA | It: last paid annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19901015 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20010917 Year of fee payment: 18 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030501 |