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CN1090060C - Circular disc shape honeycomb, esp. catalyst carrier - Google Patents

Circular disc shape honeycomb, esp. catalyst carrier Download PDF

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Publication number
CN1090060C
CN1090060C CN95195280A CN95195280A CN1090060C CN 1090060 C CN1090060 C CN 1090060C CN 95195280 A CN95195280 A CN 95195280A CN 95195280 A CN95195280 A CN 95195280A CN 1090060 C CN1090060 C CN 1090060C
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CN
China
Prior art keywords
honeycomb ceramics
macrostructure
disk
press
passage
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 - Fee Related
Application number
CN95195280A
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Chinese (zh)
Other versions
CN1158576A (en
Inventor
沃尔夫冈·毛斯
罗尔夫·布鲁克
翰斯·博德
尤多·马丁
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.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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Filing date
Publication date
Application filed by Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority to CN95195280A priority Critical patent/CN1090060C/en
Publication of CN1158576A publication Critical patent/CN1158576A/en
Application granted granted Critical
Publication of CN1090060C publication Critical patent/CN1090060C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • F01N3/2821—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • 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
    • 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
    • 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
    • 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
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/32—Honeycomb supports characterised by their structural details characterised by the shape, form or number of corrugations of plates, sheets or foils
    • F01N2330/323—Corrugations of saw-tooth or triangular form
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/44—Honeycomb supports characterised by their structural details made of stacks of sheets, plates or foils that are folded in S-form
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

The invention concerns a honeycomb element, in particular a catalyst support (3) for the catalytic conversion of exhaust gases in an exhaust system, in particular for an exhaust system in an internal combustion engine, preferably a spark ignition engine. The element in question has a plurality of channels (4) each of which discharges at one end into a central channel (5). The channels (4) curve outwards from the central channel (5) and are bounded by disks (15) which lie contiguously. At least some of the disks (15) have a macrostructure which forms the lateral boundary of the channels (4). A microstructure (19) provided additionally in some or all of the disks (15) can enhance the efficiency of a catalytic conversion process.

Description

Circular disc shape honeycomb is catalyst carrier particularly
The present invention relates to particularly catalyst carrier of honeycomb ceramics, in order in vent systems, particularly at internal-combustion engine, catalyzed conversion waste gas in the vent systems of quartastroke engine preferably, honeycomb ceramics has some passages, and each passage leads to a central passage with the one end.This honeycomb ceramics that has catalyst coatings is also referred to as radially catalytic converter.This device can be indicated in VDI's news periodical phase 24 days the 38th September in 1993 the 11st page " catalytic converter moves towards high technology ".
The objective of the invention is on the basis of this existing apparatus, to further develop honeycomb ceramics, make it for instance at the catalyzed conversion that improves when the catalyst carrier waste gas.It is simple that it is made.
This purpose can be achieved by the described special honeycomb ceramics in order to catalyzed conversion waste gas of the feature of claim 1.Other characteristics are stated from each dependent claims.
The characteristics of honeycomb ceramics of the present invention are that each passage is outwards done the arc extension from central passage.Adopt this embodiment that passage is just increased under the outside dimensions that needn't change carrier.
Carrier is made outside dimensions with regard to it can make design flexible obtaining under the identical catalytic surface area.Passage is the boundary from the disk that contacts with each other, and some disk has the macrostructure that constitutes border, passage side at least, and it is about 0.5-5mm highly for instance.
The advantage of this honeycomb body structure is to make simply, because this macrostructure can draw by embossing on disk for instance.Another advantage of this structure is that the quantity that changes the disc type passage just can make the purposes of catalytic surface area and catalyst carrier adapt comparatively simply.
Some macrostructures of each disk can be done different bendings each other.The passage of carrier can have identical curvature but different cross sections.To catalyst carrier can adopt curvature identical with (or) different macrostructures satisfies various requirement.When alternately adopting, just can make knockdown carrier structure and obtain the spacing of defined between disk with or without the different disk of the disk of macrostructure or macrostructure curvature.
The involute that each passage is outwards done substantially from centre gangway extends.Like this, each is gradually opened body and all has identical spacing at any position, thereby the free-flow cross section of passage on flow direction roughly keeps invariable.
In another preferred embodiment, the disk of being with macrostructure and the disk of being with microstructure alternately are set and macrostructure and microstructure are intersected at angle in device.This improved advantage is flowing and cause eddy current in flowing in the microstructure interfering channel.Eddy current in flowing can make the diffusion layer phase mutual interference on fluid layer and the catalyst surface and improve mass transfer between waste gas and the catalyzer.
Microstructure can make the burr concentric with centre gangway for instance.Microstructure one speech highly only can be regarded as the structure for the about 5-30% of macrostructure here.
By described another characteristics of claim 7, microstructure forms the burr that intersects at angle with macrostructure.
The disk that has macrostructure also can have the microstructure of extending at angle with macrostructure in addition so that strengthen catalyst action.
The waste gas flow process carrier of preferably from inside to outside flowing through.Therefore centre gangway is communicated with exhaust gas entrance.The advantage of this flow process is that the operating temperature at carrier middle part can reach the desired temperature of catalyzed conversion relatively quickly.Therefore, device has comparatively faster reaction velocity.
For further reducing the contaminativity discharging body of cold start-up phase, the reply carrier is done electric heating or electromagnetism heating.Electrically heated carrier can be indicated in international monopoly WO92/18245 for instance.
Now as follows to non-restrictive example of the present invention, advantage and possible application accompanying drawings, among the figure:
Fig. 1 is apparatus of the present invention first embodiment's a sectional arrangement drawing;
Fig. 2 is apparatus of the present invention second embodiment's a sectional arrangement drawing;
Fig. 3 is the plane view of disk;
Fig. 4 is the disk plane view of band microstructure;
Fig. 5 is the sectional drawing of V-V along the line among Fig. 4;
Fig. 1 illustrates the device 1 in order to catalyzed conversion waste gas in vent systems.Device has the shell 2 of apparatus with catalyst inside carrier 3.Catalyst carrier 3 has some passages 4.Each passage leads to centre gangway 5.Centre gangway 5 is communicated with the exhaust gas entrance 6 of housing 2.Exhaust gas entrance 6 or housing 2 are communicated with outlet pipe 7 as a vent systems part.
Housing 2 has the waste gas outlet 8 that is communicated with another outlet pipe 9.An end 10 relative with exhaust gas entrance seals.
Do in carrier 3 and the housing 2 to be installed separately at interval and make and reserve a gap 11 between carrier 3 and the housing 2.
Waste gas A from the internal-combustion engine (not shown) flows to centre gangway 5 through outlet pipe 7 and exhaust gas entrance 6.Waste gas is from the passage 4 outflow carriers of centre gangway 5 via carrier 2.
Waste gas through the gap 11 and the waste gas outlet 8 of housing 2 flow to outlet pipe 9.
Fig. 2 illustrates another embodiment.Second embodiment is that with Fig. 1 first embodiment's difference the flow process of waste gas is different.In first embodiment, the waste gas carrier of from inside to outside flowing through, and the waste gas carrier 3 of flowing through from outside to inside in a second embodiment.
In exhaust gas entrance district 12, be provided with fluid director 13, with so that exhaust flow steering gap 11 this fluid directors on fluidics in order to reduce the pressure loss.
In Fig. 2 embodiment, carrier 3 also is can be electrically heated.For this reason, make voltage source 14 receive the inside of carrier 3 through centre gangway 5.The outer surface of carrier 3 also is connected with voltage source 14.Carrier 3 is made of some disks that contact with each other.Fig. 3 illustrates the disk 15 that has macrostructure 16.Macrostructure 16 constitutes the border, side of passage 4.Passage 4 is outwards gradually opened shape substantially from central area 17 and is extended.Disk can have the microstructure 20 of extending at angle with macrostructure in addition.
Fig. 4,5 illustrates the disk of band microstructure.Microstructure 19 has the burr concentric with central area 17.Central area 17 is as the opening that becomes centre gangway 5 when assembling carrier.Microstructure 19 can be only in a side of disk 18 but be preferably in its both sides and be provided with.Preferably make it apart one be equivalent to 0.5-10 doubly to the spacing of macrostructure 16 height.
Even honeycomb ceramics of the present invention can be used for the occasion that can utilize the space very limited because it has structure flexibly.

Claims (12)

  1. A honeycomb ceramics particularly a kind of in vent systems in order to the catalyst carrier (3) of catalyzed conversion waste gas, this honeycomb ceramics is made of adjacent disk (15,18), have some passages (4), each passage is the boundary with disk (15,18), each passage (4) leads to a centre gangway (5) with the one end
    It is characterized in that:
    At least some disk (15) has the macrostructure (16) on formation passage (4) border, side, and macrostructure is made the involute shape substantially and stretched out from centre gangway (5).
  2. 2. press the described honeycomb ceramics of claim 1,
    It is characterized in that:
    Each passage (4) has the curvature that differs from one another.
  3. 3. press the described honeycomb ceramics of claim 2,
    It is characterized in that:
    At least some disk (15) has the macrostructure (16) of different curvature bending.
  4. 4. press the described honeycomb ceramics of claim 4,
    It is characterized in that:
    Each passage (4) departs from desirable involute shape and tangentially extends from central area (17).
  5. 5. press the described honeycomb ceramics of claim 1,
    It is characterized in that:
    The free flow cross section of passage (4) is invariable substantially on flow direction.
  6. 6. press the described honeycomb ceramics of claim 1,
    It is characterized in that:
    The disk (18) that has the disk (15) of a macrostructure (16) and have a microstructure (19) is done installation alternately, and wherein, described macrostructure (16) intersects at angle with microstructure (19).
  7. 7. press the described honeycomb ceramics of claim 6,
    It is characterized in that:
    Described microstructure (19) has and the concentric burr of a central area (17).
  8. 8. press the described honeycomb ceramics of claim 6,
    It is characterized in that:
    Described microstructure is to be made of the burr that intersects at angle with macrostructure.
  9. 9. press one of claim 1-3 described honeycomb ceramics,
    It is characterized in that:
    The disk (15) that has macrostructure (16) also has the microstructure of extending at angle with macrostructure (16).
  10. 10. press the described honeycomb ceramics of claim 1,
    It is characterized in that:
    Described carrier (3) is heatable.
  11. 11. by the described honeycomb ceramics of claim 10,
    It is characterized in that:
    Described carrier (3) but electric heating.
  12. 12. by the described honeycomb ceramics of claim 10,
    It is characterized in that:
    Described carrier (3) but electromagnetism heating.
CN95195280A 1994-09-26 1995-09-22 Circular disc shape honeycomb, esp. catalyst carrier Expired - Fee Related CN1090060C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN95195280A CN1090060C (en) 1994-09-26 1995-09-22 Circular disc shape honeycomb, esp. catalyst carrier

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP4434363.9 1994-09-26
DEP4435913.6 1994-10-07
CN95195280A CN1090060C (en) 1994-09-26 1995-09-22 Circular disc shape honeycomb, esp. catalyst carrier

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Publication Number Publication Date
CN1158576A CN1158576A (en) 1997-09-03
CN1090060C true CN1090060C (en) 2002-09-04

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* Cited by examiner, † Cited by third party
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CN101190330A (en) 2006-11-30 2008-06-04 深圳市鼎兴生物医药技术开发有限公司 Application of cholinesterase in antagonizing tachykinin drugs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311513A1 (en) * 1992-04-15 1993-10-21 Jenbacher Energiesysteme Ag Je Catalytic converter with extended life
EP0567034A1 (en) * 1992-04-20 1993-10-27 Toyota Jidosha Kabushiki Kaisha Electrically heatable catalytic converter
DE9315010U1 (en) * 1993-10-04 1994-04-07 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Carrier body for exhaust gas catalysts
DE4339025A1 (en) * 1992-12-14 1994-06-16 Mannesmann Ag Catalytic purificn. of polluted air - using element with absorbent portion and catalytic combustion portion.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311513A1 (en) * 1992-04-15 1993-10-21 Jenbacher Energiesysteme Ag Je Catalytic converter with extended life
EP0567034A1 (en) * 1992-04-20 1993-10-27 Toyota Jidosha Kabushiki Kaisha Electrically heatable catalytic converter
DE4339025A1 (en) * 1992-12-14 1994-06-16 Mannesmann Ag Catalytic purificn. of polluted air - using element with absorbent portion and catalytic combustion portion.
DE9315010U1 (en) * 1993-10-04 1994-04-07 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Carrier body for exhaust gas catalysts

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