EP1943417A2 - Moteur a combustion interne presentant un electrolyseur embarque et procede d'utilisation - Google Patents

Moteur a combustion interne presentant un electrolyseur embarque et procede d'utilisation

Info

Publication number
EP1943417A2
EP1943417A2 EP06803375A EP06803375A EP1943417A2 EP 1943417 A2 EP1943417 A2 EP 1943417A2 EP 06803375 A EP06803375 A EP 06803375A EP 06803375 A EP06803375 A EP 06803375A EP 1943417 A2 EP1943417 A2 EP 1943417A2
Authority
EP
European Patent Office
Prior art keywords
hydrogen
internal combustion
source
combustion engine
combustion chamber
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.)
Withdrawn
Application number
EP06803375A
Other languages
German (de)
English (en)
Other versions
EP1943417A4 (fr
Inventor
Gary Black, Sr.
Ho Teng
Ronald A. Mcmaster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
McMaster Fuel Ltd
Original Assignee
McMaster Fuel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by McMaster Fuel Ltd filed Critical McMaster Fuel Ltd
Publication of EP1943417A2 publication Critical patent/EP1943417A2/fr
Publication of EP1943417A4 publication Critical patent/EP1943417A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
    • F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/34—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electrolyser
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/12—Combinations of different methods of purification absorption or adsorption, and catalytic conversion
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/04—Adding substances to exhaust gases the substance being hydrogen
    • 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 internal combustion engines, and more particularly to a method and apparatus for treating the exhaust gases and improving fuel efficiency.
  • NOX traps have been employed to decrease the amount of NOX that is released in the exhaust gases.
  • the amount of NOX in the exhaust from internal combustion engines may be elevated when the engine is operating lean. Lean operation of an internal combustion engine improves fuel economy by reducing the pumping losses and improving the thermodynamic efficiency. However, the exhaust from such engines may contain a large amount of excess oxygen for extended periods of time and thus increase the amount of NOX in the emission system.
  • emission control devices capable of storing NOX during lean operating conditions may be employed. Periodically, as the NOX capacity of the NOX trap is approached, the air-fuel ratio may be driven to a rich condition for a few seconds in order to purge the NOX trap of the stored NOX and to regenerate the NOX storage capacity of the trap.
  • the after-treatment technology must be capable of reducing as much NOX as possible to N2 and H2O.
  • Ammonia has been mentioned as a constituent of various types of fuels in the past, both for internal combustion engines and for jet propulsion.
  • One such fuel is a liquid mixture of ammonias nitrate in liquid ammonia which is a self-sustaining fuel combination requiring no addition of an oxidant such as air.
  • Ammonia is also used to manufacture hydrazine, a well known rocket fuel, and while ammonia does not support combustion, it will burn when mixed with oxygen in air to give a variety of products, principally nitrogen and water. Mixtures of nitrous oxide and ammonia in a rate of 3 to 2 will detonate with some violence yielding nitrogen and water.
  • Ammonia based fuels offer a great potential for universal use.
  • a disadvantage in using ammonia based fuels is that pure ammonia is not suitable for use in high speed engines, as the flame speed is too slow.
  • the initiation of combustion has caused a problem.
  • Another object of the invention is the production of an internal combustion engine after-treatment of the exhaust emissions therefrom.
  • Still another object of the invention is to produce a method and apparatus for treating the exhaust emissions by the introduction of hydrogen as a reductant in a lean NOX trap for converting NO2 to N2.
  • a system for treating the exhaust emissions comprising internal combustion engine including an exhaust gas converter for capturing NO2; a source of hydrogen; means for directing the hydrogen to the exhaust gas converter for converting the NO2 therein to N2; and means for exhausting the exhaust from said engine free from NO2.
  • an improvement in an internal combustion engine characterized by an internal combustion engine including at least one combustion chamber; a source of hydrogen; and a first conduit means providing communication between said source of hydrogen and the combustion chamber for introducing hydrogen into the combustion chamber.
  • the above object may typically be achieved by method for treating exhaust emissions comprising the steps of providing an internal combustion engine including an exhaust gas converter for capturing NO2; providing a source of hydrogen; causing the hydrogen to enter the exhaust gas converter, whereby the NO2 contained therein is converted to N2; and exhausting the exhaust from said engine free from NO2.
  • FIG. 1 shows a flow diagram of a shaft power path and a waste power path of an internal combustion engine employing an on-board electrolyzer in accordance with an embodiment of the invention
  • Fig. 2 shows a list illustrating the benefits of employing the electrolyzer shown in Fig. 1 in an internal combustion engine
  • Fig. 3 shows a cross section of a combustion chamber of an internal combustion engine in accordance with another embodiment of the invention.
  • FIG. 10 there is shown a system 10 incorporating the present invention along with a list illustrating the benefits achieved by the system 10.
  • the system includes an internal combustion engine 12 having two primary power paths: 1) shaft power, and 2) waste power.
  • the system 10 can be used with various engine types, including but not limited to diesel fueled internal combustion engines and gasoline fueled internal combustion engines.
  • the exhaust gases are employed to drive an alternator 14 which, in turn, powers an on-board electrolyzer 16 for producing hydrogen (H2) and oxygen (O2) .
  • an on-board electrolyzer 16 for producing hydrogen (H2) and oxygen (O2) .
  • a belt driven alternator 18 powers the on board electrolyzer 16 for producing hydrogen and oxygen.
  • the hydrogen produced by the electrolyzer 16 is introduced as a reducing agent to an exhaust after-treatment 20 which typically includes a lean NOX trap (not shown) .
  • the NOX is trapped in the lean NOX trap during normal engine operation and is typically released when the exhaust is in absence of oxygen.
  • the hydrogen regenerates the NOX trap on a continuous cycle as the NOX trap approaches a predetermined capacity.
  • a regeneration cycle occurs approximately three to four seconds out of every 100 seconds.
  • the oxygen produced by the electrolyzer 16 is employed as an oxidizing agent to effectively cause regeneration of the diesel particulate filter in diesel fueled engines converting the particulates to CO2. Additionally, the oxygen is used as an oxidant converting NO to NO2 upstream of the lean NOX trap.
  • the hydrogen (H2) produced by the electrolyzer 16 may be utilized with the fuel to improve operation, reduce fuel consumption, or reduce emissions.
  • the on-board production of hydrogen by the electrolyzer 16 may be beneficially used to improve operation of a bio-diesel internal combustion engine or an internal combustion engine employing an ammonia, such as anhydrous ammonia.
  • a bio-diesel internal combustion engine or an internal combustion engine employing an ammonia such as anhydrous ammonia.
  • FIG. 3 shows a cross section of a combustion chamber 112 of an internal combustion engine 110.
  • a piston 114 is adapted to reciprocate by a connecting rod 116 which is connected to an associated crank shaft (not shown) .
  • a source 118 of anhydrous ammonia (NH3) is fed into the combustion chamber 112 by means of an associated conduit means .
  • the engine 110 is further provided with an antechamber 120 for receiving hydrogen from an appropriate source, such as the electrolyzer 16 discussed above, in communication with the antechamber 120.
  • the antechamber 120 is in communication with the combustion chamber 112 of the engine 110 permitting the introduction of hydrogen.
  • a spark plug or glow plug (not shown) is disposed within the antechamber 120.
  • the hydrogen is caused to be ignited by the spark plug or glow plug, causing the pressure and temperature of the hydrogen in the antechamber 120 to rise.
  • This condition causes the hydrogen to issue from the antechamber 120 into the combustion chamber 112 of the engine 110 as a stream of hot gas.
  • the hot gas then interacts with the anhydrous ammonia in the combustion chamber 112 of the engine 110.
  • the interaction causes combustion of the anhydrous ammonia, which consequently forces the piston 114 of the engine 110 to be thrust downwardly to complete the combustion stroke of the engine 110.
  • hydrogen produced by the electrolyzer 16 can improve idle operation and militate against carbon deposits in bio- diesel fueled engines and reduce fuel consumption and emissions in gasoline fueled engines.
  • hydrogen produced by the electrolyzer 16 can reduce fuel consumption, improve cold start operation, and reduce emissions while running in idle mode.
  • the substituted hydrogen can reduce fuel consumption and reduce emissions in cold start operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

L'invention concerne un procédé et un appareil de traitement des gaz d'échappement et d'amélioration de rendement du carburant d'un moteur à combustion interne, dans lesquels un électrolyseur embarqué est utilisé pour produire de l'hydrogène (H2) et de l'oxygène (O2) qui sont utilisés afin d'optimiser le rendement du carburant et de réduire au minimum les émissions d'échappement.
EP06803375A 2005-09-12 2006-09-12 Moteur a combustion interne presentant un electrolyseur embarque et procede d'utilisation Withdrawn EP1943417A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US71633105P 2005-09-12 2005-09-12
US71807205P 2005-09-16 2005-09-16
PCT/US2006/035403 WO2007033124A2 (fr) 2005-09-12 2006-09-12 Moteur a combustion interne presentant un electrolyseur embarque et procede d'utilisation

Publications (2)

Publication Number Publication Date
EP1943417A2 true EP1943417A2 (fr) 2008-07-16
EP1943417A4 EP1943417A4 (fr) 2009-12-23

Family

ID=37865503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06803375A Withdrawn EP1943417A4 (fr) 2005-09-12 2006-09-12 Moteur a combustion interne presentant un electrolyseur embarque et procede d'utilisation

Country Status (4)

Country Link
US (1) US20080256933A1 (fr)
EP (1) EP1943417A4 (fr)
CA (1) CA2622228A1 (fr)
WO (1) WO2007033124A2 (fr)

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DE102007017613A1 (de) * 2007-04-12 2008-10-23 Neubert, Susanne Verfahren und Vorrichtung zur Aufbereitung von Flüssigkeiten
US8336508B2 (en) * 2008-09-17 2012-12-25 Timothy Huttner System and method for use with a combustion engine
ITFI20090155A1 (it) * 2009-07-10 2011-01-11 Acta Spa Apparato per arricchire d'idrogeno l'alimentazione di motori a combustione interna alimentati ad ammoniaca durante la fase di avviamento e durante la marcia.
NO343554B1 (no) * 2017-08-14 2019-04-01 Lars Harald Heggen Nullutslipps fremdriftssystem og generatoranlegg med ammoniakk som brennstoff
US11286822B2 (en) * 2020-01-13 2022-03-29 Saudi Arabian Oil Company Mitigating particulate matter emission in engine exhaust
BR112022025417A2 (pt) * 2020-06-16 2023-01-24 Basf Corp Sistemas de tratamento de emissão para tratamento de uma corrente de gás de escape e de combustão que produz um fluxo de escape tratado e método de tratamento de uma corrente de gás de escape

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US6863874B1 (en) * 1998-10-12 2005-03-08 Johnson Matthey Public Limited Company Process and apparatus for treating combustion exhaust gas
EP1188908A2 (fr) * 2000-09-19 2002-03-20 Nissan Motor Company, Limited Système de purification de gaz d'échappement
EP1451453A1 (fr) * 2001-12-03 2004-09-01 Catalytica Energy Systems, Inc. Systeme et procedes servant a ameliorer le controle des emissions de moteurs a combustion interne
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WO2004071646A2 (fr) * 2003-02-12 2004-08-26 Delphi Technologies, Inc. Systeme et procede de reduction des oxydes d'azote
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See also references of WO2007033124A2 *

Also Published As

Publication number Publication date
US20080256933A1 (en) 2008-10-23
WO2007033124A2 (fr) 2007-03-22
WO2007033124A3 (fr) 2009-04-30
EP1943417A4 (fr) 2009-12-23
CA2622228A1 (fr) 2007-03-22

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