WO2000043104B1 - Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls - Google Patents

Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls

Info

Publication number
WO2000043104B1
WO2000043104B1 PCT/US2000/001474 US0001474W WO0043104B1 WO 2000043104 B1 WO2000043104 B1 WO 2000043104B1 US 0001474 W US0001474 W US 0001474W WO 0043104 B1 WO0043104 B1 WO 0043104B1
Authority
WO
WIPO (PCT)
Prior art keywords
inner housing
inlet
outlet
insulation cavity
exhaust
Prior art date
Application number
PCT/US2000/001474
Other languages
French (fr)
Other versions
WO2000043104A1 (en
WO2000043104A9 (en
Inventor
John P Biel Jr
David K Benson
Steven D Burch
Frederick B Hill Jr
Matthew A Keyser
Lance Mews
Donald R Rigsby
C Edwin Tracy
Original Assignee
Benteler Automotive Corp
John P Biel Jr
David K Benson
Steven D Burch
Frederick B Hill Jr
Matthew A Keyser
Lance Mews
Donald R Rigsby
C Edwin Tracy
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 Benteler Automotive Corp, John P Biel Jr, David K Benson, Steven D Burch, Frederick B Hill Jr, Matthew A Keyser, Lance Mews, Donald R Rigsby, C Edwin Tracy filed Critical Benteler Automotive Corp
Priority to US09/889,646 priority Critical patent/US6908595B1/en
Priority to AU32117/00A priority patent/AU3211700A/en
Publication of WO2000043104A1 publication Critical patent/WO2000043104A1/en
Publication of WO2000043104B1 publication Critical patent/WO2000043104B1/en
Publication of WO2000043104A9 publication Critical patent/WO2000043104A9/en
Priority to US11/145,339 priority patent/US7431896B2/en

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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2046—Periodically cooling catalytic reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • F01N13/0097—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 the purifying devices are arranged in a single housing
    • 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
    • F01N13/14—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 thermal insulation
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • 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
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2889—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with heat exchangers in a single housing
    • 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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N2240/02—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 a heat exchanger
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

A thermally-activated exhaust treatment device, such as a catalytic converter (20), for vehicles includes a core having an inner housing (21) and a catalytic material (27, 27'). A jacket includes an outer housing (22) enclosing the inner housing (21) but characteristically not contacting the inner housing (21). The inner and outer housings (21, 22) includes walls (30, 31) forming a vacuum-drawn sealed insulation cavity (26) around the inner housing (21). A temperature-activated variable insulator device is positioned within the outer housing (22) and includes a hydrogen source (32) and controls for controlling the variable insulator device. A vacuum-maintenance device is incorporated into the insulation cavity (26), and includes a small container, getter material positioned in the container, a porous member allowing gas in the insulation cavity (26) to communicate with the getter material. A multi-layered radiation shield is positioned in the vacuum space and is loosely coupled to the inner housing (21). A vacuum detector includes a visible indicator of the vacuum in the insulation cavity (26).

Claims

AMENDED CLAIMS
[received by the International Bureau on 20 July 2000 (20.07.00); original claims 1, 1 1 and 30-32 amended; remaining claims unchanged (3 pages)]
1. A thermally-activated exhaust treatment device, such as a catalytic converter, adapted to control exhaust emissions in a vehicle comprising: an inner housing having a first inlet and a first outlet defining a longitudinal direction and having an exhaust treating device therein chosen to reduce undesirable emissions from the exhaust of a combustion engine as the exhaust passes from the first inlet to the first outlet; an outer housing enclosing the inner housing but characteristically not contacting the inner housing, the outer housing including a second inlet and a second outlet that align with the first inlet and the first outlet of the inner housing, the inner and outer housings including walls forming a sealed insulation cavity around the inner housing, the insulation cavity having a vacuum drawn therein; and a passive, temperature-activated variable insulator device positioned within the outer housing and in communication with the insulation cavity, the variable insulator device including a temperature-activated, self-reversing hydrogen source that obviates a need for separate electrical wiring and controls for controlling the temperature of the variable insulator device.
2. The device defined in claim 1 , wherein the insulator device includes a hydride.
3. The device defined in claim 2, wherein the hydride comprises a reversible hydride.
4. The device defined in claim 3, wherein the hydride is located in a confined space defined between the first and second outlets.
5. The device defined in claim 4, including a wire mesh member in the confined space.
6. The device defined in claim 5, including a containment ring in the confined space configured to hold the wire mesh in the space, the containment ring including holes permitting passage of hydrogen from the hydride to a remaining part of the insulation cavity.
7. The device defined in claim 1, wherein the hydride is located in a confined space defined inside the outer housing.
8. The device defined in claim 7, including a wire mesh member in the confined space.
9. The device defined in claim 8, including a containment ring in the confined space configured to hold the wire mesh in the space, the containment ring including holes permitting passage of hydrogen from the hydride to a remaining part of the insulation cavity.
10. The device defined in claim 1, wherein the insulator device includes a getter.
11. The device defined in claim 10, wherein the hydrogen source includes a reversible hydride.
12. A device adapted to control exhaust emissions in a vehicle comprising: an inner housing having a first inlet and a first outlet defining a longitudinal direction and having an exhaust treatment device therein chosen to reduce undesirable emissions from the exhaust of a combustion engine as the exhaust passes from the first inlet to the first outlet; an outer housing enclosing the inner housing but characteristically not contacting the inner housing, the outer housing including a second inlet and a second outlet that align with the first inlet and the first outlet of the inner housing, the inner and outer housings including walls forming a sealed insulation cavity around the inner housing, the insulation cavity having a vacuum drawn therein; and a vacuum maintenance device incorporated into the insulation cavity, the vacuum maintenance device including a container, getter material positioned in the container, a porous member allowing gas in the insulation cavity to communicate with the getter material, and a gate covers the porous member to prevent the gas in the insulation cavity from communicating with the getter material, the gate having a high melting point such that the insulation cavity can be pumped-down, baked, and sealed at a lower first
30. An exhaust treatment device adapted to control exhaust emissions in a vehicle comprising: an inner housing having a first sidewall, a first inlet end cone defining a first inlet, a first outlet end cone defining a first outlet, and having a thermally-activated exhaust treatment device therein chosen to reduce undesirable emissions from the exhaust of a combustion engine as the exhaust passes from the first inlet to the first outlet; an outer housing enclosing the inner housing but characteristically not contacting the inner housing, the outer housing including a second sidewall, a second inlet end cone defining a second inlet, and a second outlet end cone defining a second outlet, the inner and outer housings forming a sealed insulation cavity around the inner housing, the insulation cavity having a vacuum drawn therein; and a radiation shield with gas passages, the radiation shield being extended around the thermal energy storage material and the inner housing, the radiation shield being configured to assist with thermal communication the emissions treatment device and the outer housing primarily through hydrogen gas conductance when the emissions treatment device is hot and generating an exothermic reaction.
31. The device defined in claim 30, wherein the radiation shield is cut longitudinally into separate parts that are configured to mateably engage and cover the inner housing with a clam-shell-like motion.
32. The device defined in claim 30, including a thermal energy storage material located around and loosely coupled to the inner housing.
33. An exhaust treatment device adapted to control exhaust emissions in a vehicle comprising: an inner housing having a first sidewall, a first inlet end cone defining a first inlet, a first outlet end cone defining a first outlet, and having a thermally-activated exhaust treatment device therein chosen to reduce undesirable emissions from the exhaust of a combustion engine as the exhaust passes from the first inlet to the first outlet;
PCT/US2000/001474 1999-01-22 2000-01-21 Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls WO2000043104A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09/889,646 US6908595B1 (en) 1999-01-22 2000-01-21 Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls
AU32117/00A AU3211700A (en) 1999-01-22 2000-01-21 Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls
US11/145,339 US7431896B2 (en) 1999-01-22 2005-06-02 Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11682999P 1999-01-22 1999-01-22
US60/116.829 1999-01-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/145,339 Continuation US7431896B2 (en) 1999-01-22 2005-06-02 Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls

Publications (3)

Publication Number Publication Date
WO2000043104A1 WO2000043104A1 (en) 2000-07-27
WO2000043104B1 true WO2000043104B1 (en) 2000-09-14
WO2000043104A9 WO2000043104A9 (en) 2001-11-22

Family

ID=22369485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/001474 WO2000043104A1 (en) 1999-01-22 2000-01-21 Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls

Country Status (2)

Country Link
AU (1) AU3211700A (en)
WO (1) WO2000043104A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059195B4 (en) * 2000-11-29 2006-04-06 Benteler Automobiltechnik Gmbh Arrangement for the treatment of the exhaust gases passing from a gasoline engine with direct injection
GB0201377D0 (en) * 2002-01-22 2002-03-13 Pyroban Group Ltd Engine exhaust treatment system
CN117537261B (en) * 2023-12-21 2024-09-06 河南泰特镁业科技有限公司 Solid-state hydrogen storage and transportation equipment based on magnesium-based alloy

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318108A (en) * 1988-04-15 1994-06-07 Midwest Research Institute Gas-controlled dynamic vacuum insulation with gas gate
US5477676A (en) * 1988-04-15 1995-12-26 Midwest Research Institute Method and apparatus for thermal management of vehicle exhaust systems
JP2580353Y2 (en) * 1991-09-03 1998-09-10 臼井国際産業株式会社 Automotive catalytic converter

Also Published As

Publication number Publication date
AU3211700A (en) 2000-08-07
WO2000043104A1 (en) 2000-07-27
WO2000043104A9 (en) 2001-11-22

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