CN102639827A - Electrically heated diesel oxidation catalyst - Google Patents

Electrically heated diesel oxidation catalyst Download PDF

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Publication number
CN102639827A
CN102639827A CN201080053906XA CN201080053906A CN102639827A CN 102639827 A CN102639827 A CN 102639827A CN 201080053906X A CN201080053906X A CN 201080053906XA CN 201080053906 A CN201080053906 A CN 201080053906A CN 102639827 A CN102639827 A CN 102639827A
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CN
China
Prior art keywords
electrode
substrate
treatment system
motor
catalytic converter
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.)
Pending
Application number
CN201080053906XA
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Chinese (zh)
Inventor
J·霍纳
A·杜泽克
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International Engine Intellectual Property Co LLC
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International Engine Intellectual Property Co LLC
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 International Engine Intellectual Property Co LLC filed Critical International Engine Intellectual Property Co LLC
Publication of CN102639827A publication Critical patent/CN102639827A/en
Pending legal-status Critical Current

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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
    • F01N3/021—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 filters
    • F01N3/033—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 filters in combination with other devices
    • F01N3/035—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 filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • 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
    • F01N13/009—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 separate purifying devices arranged in series
    • 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
    • F01N3/021—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 filters
    • F01N3/023—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 filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—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 filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • 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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

Abstract

An exhaust gas after treatment system (10) for a vehicle having an engine (14) includes a fluid passageway (20) extending from the engine to an ambient (18) for fluidly communicating exhaust gas (F). A diesel particulate filter (30) is disposed on the fluid passageway downstream of the engine (14). Disposed downstream of the engine (14) and upstream of the diesel particulate filter (30) is an electric diesel oxidation catalyst (24) having a substrate (34). A first electrode (40) and a second electrode (46) are attached to the electric diesel oxidation catalyst (24). The first electrode (40) selectively delivers current through the substrate (34) to the second electrode (46) to generate heat at the substrate (34).

Description

The electric heating diesel oxidation catalytic converter
Background technique
Mode of execution as herein described relates to a kind of system, method and apparatus of heat exhaust gases.More specifically, mode of execution as herein described relates to a kind of system, method and apparatus of heat exhaust gases, and it is used for producing a regeneration process at diesel particulate filter.
The waste gas that comes out from engine emission is handled in the downstream that the exhausted gas post-processing system of diesel-engine road vehicle is positioned at motor.After-treatment system generally includes a diesel oxidation transducer and a diesel particulate filter.Particulate matter from the waste gas is accumulated on the diesel particulate filter, if it is not controlled, can produce back pressure at after-treatment system.
Regenerative process is meant in DENG regular job process, the regular oxidation of the particulate matter of collecting in the after-treatment system.When the particulate matter in the diesel particulate filter of waste gas system produces accumulation, filter is carried out " regeneration " thereby particulate matter is oxidized.Usually, increase engine load and in exhaust flow the back inject diesel fuel and cause regeneration.This back is injected and is provided enough heats to come the captive particulate matter of oxidated diesel oil machine particulate filter.
Waste gas is a kind of relatively poor heat conductor.The load that so, must strengthen motor provides the waste gas of abundant heating to cause the regeneration of diesel particulate filter downstream part.When motor operates with low speed and low-load, thereby the EGT that is produced possibly not high enoughly can't cause regeneration.
The engine exhaust after-treatment system of vehicle comprises a fluid passage that is used for the exhaust-gas flow exchange that extends to environment from motor.Diesel particulate filter is arranged on the fluid passage of engine downstream.What be arranged at the engine downstream and the diesel particulate filter upper reaches is the diesel engine electric oxidation catalytic converter that contains substrate.First electrode links to each other with the diesel engine electric oxidation catalytic converter with second electrode.Thereby first electrode through the catalyst substrate optionally with current delivery to the second electrode heatable catalytic convertor base plate.
Regeneration method to the engine exhaust after-treatment system that contains diesel particulate filter may further comprise the steps: the fluid passage of motor to environment is provided, substrate is provided at the upper reaches of diesel particulate filter, and the electric heating substrate.This regeneration method is further comprising the steps of again: the waste gas to through heated substrates heats, and the waste gas of heating is transferred to diesel particulate filter to cause regeneration.
Diesel engine electric oxidation catalytic converter in the engine exhaust after-treatment system contains a shell that seals up substrate basically.This shell is provided with an import and one outlet so that exhaust flow can pass through shell.First electrode extends through shell, and being configured to provides electric current to substrate.Second electrode extends from shell, is configured to from the substrate received current.
Description of drawings
Fig. 1 is the schematic representation that is positioned at the exhausted gas post-processing system that comprises the diesel engine electric oxidation catalytic converter of engine downstream.
Fig. 2 is the flow direction schematic representation that waste gas passes through the diesel engine electric oxidation catalytic converter.
Fig. 3 is the sectional view of the diesel engine electric oxidation catalytic converter that obtains along the line A-A among Fig. 2.
Embodiment
Referring to Fig. 1-Fig. 3, exhausted gas post-processing system refers to generally by 10, and it contains an exhaust pipe assembly 12, and this exhaust pipe assembly 12 extends to outlet 16 from motor 14, likewise extends to environment 18 from outlet.Exhaust pipe assembly 12 forms a fluid path 20, makes waste gas F flow to environment 18 from motor 14.
The first portion 22 of exhaust pipe assembly 12 extends to diesel engine electric oxidation catalytic converter (EDOC) 24 from motor 14.The second portion 26 of exhaust pipe assembly 12 extends to diesel oxidation transducer (DOC) 28 from EDOC 24, and it is positioned at the upper reaches of diesel particulate filter (DPF) 30.The third part 27 of exhaust pipe assembly 12 extends to outlet 16 from DPF 30.Other parts of outlet pipe can place between each parts of after-treatment system 10, for example between motor 14 and exhaust brake 29, between exhaust brake and EDOC 24, perhaps between DOC 28 and DPF 30.
DPF 30 is filters of being processed by the superhigh temperature resistant material.DPF 30 collections are also held entrained particulates material in the waste gas that is discharged into exhausted gas post-processing system 10.DPF 30 regenerates with the increase of restriction exhausted gas post-processing system 10 back pressures termly and keeps the efficient of motor 14.
DOC 28 is circulation devices, and it comprises substrate, and substrate is generally pottery or the metal that is covered with catalyzer.When waste gas F passed through DOC 28, carbon monoxide, gaseous hydrocarbon and liquid hydrocarbon particle (unburned fuel and oil) were oxidized, thereby have reduced discharging.
The upper reaches of DPF 30 and DOC 28 are EDOC 24.EDOC 24 comprises the shell 32 that seals up substrate 34 basically, and the structure of substrate 34 makes exhaust flow F can pass through substrate, and this structural distribution is on the EDOC cross section, for example lattice-shaped, vortex shape, cellular, circuitous shape, netted or other shapes arbitrarily.Substrate 34 is made of metal, yet also can be other high conductivity material.
Shell 32 can be roughly cylindric or other allow the shape of exhaust flow F from import 36 process substrates 34 to outlet 38 arbitrarily.The first portion 22 of exhaust pipe assembly 12 provides exhaust flow F to get into the fluid passage 20 of EDOC 24 from import 36, the second portion 26 of exhaust pipe assembly provide exhaust flow F from export 38 leave EDOC fluid passage.The shell 32 of EDOC 24 can be a metal, yet also can be other materials.
First electrode 40 is through the power plant on first power transmission line 42 and the vehicle, and for example motor 14, is electrically connected.First electrode 40 extends through the shell of EDOC 24, can extend a radius or the halfwidth of EDOC roughly, yet the elongation that extends to EDOC also can be other length.First electrode 40 contacts with the roughly kernel of section C of substrate at EDOC 24 with substrate 34.Insulating bush 44 is set at first electrode 40 and sentences and prevent that first electrode from contacting with the shell 32 of EDOC 24.Insulating bush 44 and first electrode, the 40 common entire length that are shorter in length than first electrode 40 of extending, therefore a part of first electrode exposes.When electric current when first electrode 40, electric current and shell 32 be insulate and electric current be directed to the roughly kernel of section C of EDOC 24.
46 extensions of second electrode are electrically connected with motor 14 from the shell 32 of EDOC 24 and through second power transmission line 48.When second electrode 46 extended from shell, second electrode 46 also can contact with substrate 34.
First electrode 40 does not come in contact with second electrode 46, but is separated from each other at interval by the substrate among the EDOC 24 34.Electrode 40,46 also can be vertically be spaced from each other with space D along the length of EDOC 24.First electrode 40 through substrate 34 from motor 14 to second electrode, 48 transmission currents.Can make current selective import EDOC 24 through user activation or automatic activation (for example passing through engine control module).
When electric current from first electrode 40, through substrate 34, when getting into second electrode 48, substrate can generate heat.When current delivery arrived the roughly kernel of section C of substrate 34, the heating of substrate 34 roughly was uniform.Exhaust flow F through EDOC 24 is heated by substrate 34 and shell 32, and heated exhaust flow is to DOC 28 and DPF 30.At DPF 30 places, heated exhaust flow F provides enough heat to cause the regeneration of DPF.
The EDOC 24 of after-treatment system 10 is positioned at the upper reaches of DOC 28 among Fig. 1, yet if the waste gas among the EDOC24 reaches enough temperature, after-treatment system can only comprise EDOC and not have the DOC in downstream so.In addition, also can use the EDOC 24 that surpasses to promote the temperature of waste gas.
Through electric heating EDOC 24, the DPF 30 on the after-treatment system 10 can regenerate under low engine speed and low engine loading, and need not to increase the load of motor 14.

Claims (20)

1. the exhausted gas post-processing system of a vehicle motor, it comprises:
Extend to the fluid passage that is used for the exhaust-gas flow exchange of environment from motor;
Be arranged at the diesel particulate filter on the engine downstream fluid passage;
Be arranged at the diesel engine electric oxidation catalytic converter that contains substrate at the diesel particulate filter upper reaches on engine downstream and the fluid passage; And
First electrode that links to each other with the diesel engine electric oxidation catalytic converter and second electrode, thus this first electrode through substrate optionally with current delivery to the second electrode heated substrates.
2. after-treatment system as claimed in claim 1 is characterized in that, this after-treatment system also comprises first power transmission line that is electrically connected with motor, and it is used to first electrode electric current is provided.
3. after-treatment system as claimed in claim 2 is characterized in that, this after-treatment system also comprises second power transmission line that is electrically connected with motor, and it is used for from second electrode to the motor transmission current.
4. after-treatment system as claimed in claim 1 is characterized in that, said diesel engine electric oxidation catalytic converter comprises the shell that seals up substrate.
5. after-treatment system as claimed in claim 4 is characterized in that, this after-treatment system also comprises and is arranged on the insulating bush that first electrode is used to prevent first electrode and housing contacts.
6. after-treatment system as claimed in claim 1 is characterized in that, said substrate allows exhaust flow to pass through.
7. after-treatment system as claimed in claim 1 is characterized in that, said first electrode extend to the roughly radius of diesel engine electric oxidation catalytic converter.
8. after-treatment system as claimed in claim 1 is characterized in that, said first electrode is separated the space with second electrode by substrate.
9. after-treatment system as claimed in claim 1 is characterized in that, this after-treatment system also comprises the diesel oxidation transducer that is arranged on diesel engine electric oxidation catalytic converter downstream and the diesel particulate filter upstream end fluid passage.
10. method that makes the engine exhaust after-treatment system regeneration that comprises diesel particulate filter, this method comprises:
Fluid passage from the motor to the environment is provided;
The diesel particulate filter upstream end provides substrate on said fluid passage;
This substrate of electric heating;
Heat the exhaust flow of this heated substrates of flowing through; And
The waste gas of heating is transferred to diesel particulate filter to cause regeneration.
11. method as claimed in claim 11 is characterized in that, this method also comprises the step with first electrode and substrate contacts.
12. method as claimed in claim 12 is characterized in that, this method also comprises through first power transmission line first electrode and motor step of connecting.
13. method as claimed in claim 12 is characterized in that, this method also comprises second electrode and the step that seals up the housing contacts of substrate basically.
14. method as claimed in claim 13 is characterized in that, this method also comprises through second power transmission line second electrode and motor step of connecting.
15. method as claimed in claim 14 is characterized in that, this method also comprises to be provided from motor to first electrode, through substrate, to second electrode, returns the step of the current loop of motor.
16. a diesel engine electric oxidation catalytic converter that is used for the engine exhaust after-treatment system, it comprises:
Basically seal up the shell of substrate, it is provided with import and outlet so that exhaust flow passes through shell;
Extend through shell so that first electrode of electric current to be provided to substrate; And
Extension from shell with second electrode from the substrate received current.
17. diesel engine electric oxidation catalytic converter as claimed in claim 16 is characterized in that, said first electrode roughly contacts at the kernel of section of substrate with substrate.
18. diesel engine electric oxidation catalytic converter as claimed in claim 16 is characterized in that, said first electrode and second electrode are separated from each other by substrate at interval.
19. diesel engine electric oxidation catalytic converter as claimed in claim 16 is characterized in that it also comprises the insulating bush that is arranged on first electrode.
20. diesel engine electric oxidation catalytic converter as claimed in claim 16 is characterized in that, said shell is roughly columned.
CN201080053906XA 2009-09-25 2010-09-24 Electrically heated diesel oxidation catalyst Pending CN102639827A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US24601209P 2009-09-25 2009-09-25
US61/246,012 2009-09-25
US12/643,374 2009-12-21
US12/643,374 US20110072805A1 (en) 2009-09-25 2009-12-21 Electrically heated diesel oxidation catalyst
PCT/US2010/050183 WO2011038218A1 (en) 2009-09-25 2010-09-24 Electrically heated diesel oxidation catalyst

Publications (1)

Publication Number Publication Date
CN102639827A true CN102639827A (en) 2012-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080053906XA Pending CN102639827A (en) 2009-09-25 2010-09-24 Electrically heated diesel oxidation catalyst

Country Status (5)

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US (1) US20110072805A1 (en)
EP (1) EP2480764A4 (en)
CN (1) CN102639827A (en)
BR (1) BR112012007435A2 (en)
WO (1) WO2011038218A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11867112B1 (en) 2023-03-07 2024-01-09 International Engine Intellectual Property Company, Llc Logic for improved delta pressure based soot estimation on low restriction particulate filters

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US5715677A (en) * 1996-11-13 1998-02-10 The Regents Of The University Of California Diesel NOx reduction by plasma-regenerated absorbend beds
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US20030031971A1 (en) * 2000-08-09 2003-02-13 Tamotsu Sugimoto Hydrogen combustion heater
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US20060168952A1 (en) * 2005-01-31 2006-08-03 Caterpillar Inc. Adaptive regeneration system for a work machine

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Publication number Publication date
EP2480764A1 (en) 2012-08-01
US20110072805A1 (en) 2011-03-31
WO2011038218A1 (en) 2011-03-31
BR112012007435A2 (en) 2016-12-13
EP2480764A4 (en) 2015-06-10

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Application publication date: 20120815