US3915658A - Catalytic converter - Google Patents

Catalytic converter Download PDF

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Publication number
US3915658A
US3915658A US305052A US30505272A US3915658A US 3915658 A US3915658 A US 3915658A US 305052 A US305052 A US 305052A US 30505272 A US30505272 A US 30505272A US 3915658 A US3915658 A US 3915658A
Authority
US
United States
Prior art keywords
casing
side wall
flange
annular
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.)
Expired - Lifetime
Application number
US305052A
Other languages
English (en)
Inventor
George E Scheitlin
Robert Lee Vautaw
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.)
Meritor Inc
Original Assignee
Arvin Industries Inc
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 Arvin Industries Inc filed Critical Arvin Industries Inc
Priority to US305052A priority Critical patent/US3915658A/en
Priority to CA163,778A priority patent/CA967379A/en
Priority to AU52409/73A priority patent/AU465157B2/en
Priority to JP2789873A priority patent/JPS5648684B2/ja
Priority to FR7310912A priority patent/FR2206788A5/fr
Priority to GB1966473A priority patent/GB1400980A/en
Priority to DE2322523A priority patent/DE2322523B2/de
Priority to BR5898/73A priority patent/BR7305898D0/pt
Application granted granted Critical
Publication of US3915658A publication Critical patent/US3915658A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01N3/08—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
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage

Definitions

  • a catalytic converter adapted to house a refractory element containing a catalyst for removing pollutants from the exhaust gases discharged from an internal combustion engine in which there is an open-ended casing in which said element can be carried.
  • One end of the casing is flanged inwardly to form a seat for said element, and a ring is mounted in the opposite casing end to retain said element against said seat.
  • a mesh sleeve is interposed between element and casing.
  • the casing has an inlet and outlet mounted on the opposite ends thereof.
  • an open ended casing adapted to receive a refractory element containing a catalyst for removing pollutants from the exhaust gases discharged from internal combustion engine.
  • Said casing has one of its ends turned inwardly to form an annular flange and a collar is mounted on the opposite casing end whereby said flange and ring form a pair of seats for retaining the refractory element in a fixed axial position in said casing.
  • a mesh sleeve extends around said element and is connected to the casing to cushion the element from the casing side walls.
  • Inlet and outlet caps are mounted on the opposite ends of the casing.
  • Each of said caps is provided with a cylindrical section adapted to be connected to the exhaust system for an internal combustion engine.
  • FIG. 1 is an axial section through a catalytic converter embodying the invention
  • FIG. 2 is a transverse section taken on the line 2-2 of FIG. 1;
  • FIG. 3 is a transverse section taken on the line 3-3 of FIG. 1;
  • FIG. 4 is an enlarged transverse section taken on the line 4-4 of FIG. 1.
  • the converter illustrated in the drawings comprises a central casing having a generally frusto-conical inlet cap 12 connected to one of its ends and a gener ally frusto-conical "outlet cap 14 connected to its opposite end.
  • the casing side wall 15 is in the form of a closed curve. a cylinder in the embodiment shown.
  • the side wall 15 is bent inwardly adjacent the outlet cap 14 to define an annular inwardly extending flange 16.
  • a cylindrical element 18 formed of a refractory material containing a catalyst for removing pollutants from the exhaust gases of an internal combusionengine is carried in the casing 10.
  • Said element is the subject matter of US. Pat. No. 3,441,381 and constitutes no part of the instant invention.
  • One end 17 of theelement 18 is seated against the flange 16, and an annular collar is disposed adjacent the opposite end 19 of said element.
  • the collar 20 comprises an annular band 22 fixedly secured to the inner face of the inner casing side wall 15 and terminating at its inner end in a radially inwardly projecting flange 23 disposed against the adjacent end face ofv element 18.
  • the flanges l6 and 23 have inner diameters smaller than the diameter of the element 18 and thus form seats disposed in overlapping engagement with the opposed ends of said element to longitudinally fixedly locate said element within the casing 10.
  • the flange 16 is generally normal to the axis of the casing. However, in the manufacture of the elements 18, it is not always possible to form their end faces 17 and 19 in parallelism. Thus, the end 17 can be seated against flange 16 in face to face engagement, and the collar 20 can be slightly cocked with respect to the axis of casing 10. This permits the flange 23 to seat against the end 19 of the element even though said end is out of parallelism with end 17.
  • annular sleeve 24 formed from a wire mesh is interposed between the outer circumference of said element and the inner casing side wall 15. As shown in FIG. 4, the sleeve 24 is retained in a fixed position within the casing by an annular weld 25 interconnecting said sleeve and casing.
  • the inlet and outlet end caps 12 and 14, which have generally frusto-conical configuration in illustrated embodiment, are substantially identical in construction.
  • the end cap 12 comprises a cylindrical inlet section 28 adapted to be connected at its outer end to an exhaust pipe or the like.
  • the inner end of section 28 is integral with a frusto-conical section 30.
  • the end of the section 30 opposite the section 28 terminates in a cylindrical section 32 having a diameter slightly larger than the casing 10. Section 32 overlaps the outer face of the casing 10 and is rigidly connected thereto.
  • the end cap 14 like end cap 12, is provided at its outer end with a cylindrical section 34 adapted to be connected to a tailpipe or the like.
  • the inner end of said section is integral with a frusto-conical section 36 whose inner end terminates in a cylindrical section 38.
  • Section 38 also has a diameter larger than the diameter of casing 10 and overlaps the outer face of said casing and is rigidly connected thereto.
  • the element 18 can be inserted into the casing and seated against the flange 16. With the element so positioned, collar 20 can be mounted within said casing to thereby position the element longitudinally therein. This permits a stabilized seating of the refractory element 18 irrespective of whether or not its end faces lie in planes normal to its axis.
  • a catalytic converter for removing the pollutants from the exhaust gases of an internal combustion engine comprising an open ended casing having a side wall in the form of a closed curve, a monolithic catalytic refractory element housed within said casing, said side wall having one of its ends turned radially inwardly to define an annular first flange, a collar having an annular band and a second flange projecting radially inwardly therefrom, said band being secured to but not integral with the inner face of said casing in a position with respect to said first flange and the axis of said casing whereby said first and second flanges seat against and directly contact the upstream and downstream ends of said element irrespective of the angular disposition of the ends on said element with respect to each other, an exhaust gas inlet means connected to the outer face of said side wall at said other end of said casing, an exhaust gas outlet means connected to said one end of said casing and being fixedly connected to the outer face of said side wall, and an annular wire

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
US305052A 1972-11-09 1972-11-09 Catalytic converter Expired - Lifetime US3915658A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US305052A US3915658A (en) 1972-11-09 1972-11-09 Catalytic converter
CA163,778A CA967379A (en) 1972-11-09 1973-02-14 Catalytic converter
AU52409/73A AU465157B2 (en) 1972-11-09 1973-02-21 Catalytic converter
JP2789873A JPS5648684B2 (enrdf_load_stackoverflow) 1972-11-09 1973-03-09
FR7310912A FR2206788A5 (enrdf_load_stackoverflow) 1972-11-09 1973-03-27
GB1966473A GB1400980A (en) 1972-11-09 1973-04-25 Catalytic converter
DE2322523A DE2322523B2 (de) 1972-11-09 1973-05-04 Katalytischer Abgasentgifter
BR5898/73A BR7305898D0 (pt) 1972-11-09 1973-08-02 Conversor catalitico

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US305052A US3915658A (en) 1972-11-09 1972-11-09 Catalytic converter

Publications (1)

Publication Number Publication Date
US3915658A true US3915658A (en) 1975-10-28

Family

ID=23179105

Family Applications (1)

Application Number Title Priority Date Filing Date
US305052A Expired - Lifetime US3915658A (en) 1972-11-09 1972-11-09 Catalytic converter

Country Status (8)

Country Link
US (1) US3915658A (enrdf_load_stackoverflow)
JP (1) JPS5648684B2 (enrdf_load_stackoverflow)
AU (1) AU465157B2 (enrdf_load_stackoverflow)
BR (1) BR7305898D0 (enrdf_load_stackoverflow)
CA (1) CA967379A (enrdf_load_stackoverflow)
DE (1) DE2322523B2 (enrdf_load_stackoverflow)
FR (1) FR2206788A5 (enrdf_load_stackoverflow)
GB (1) GB1400980A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134733A (en) * 1975-07-09 1979-01-16 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Apparatus for treatment of exhaust gases
US4218422A (en) * 1976-10-15 1980-08-19 Ford Motor Company Converter structure
US4239733A (en) * 1979-04-16 1980-12-16 General Motors Corporation Catalytic converter having a monolith with support and seal means therefor
US4305910A (en) * 1979-02-28 1981-12-15 Mitsui Engineering And Shipbuilding Co., Ltd. Catalytic reaction for reduction of nitrogen oxide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49109015U (enrdf_load_stackoverflow) * 1973-01-16 1974-09-18
JPS56154096A (en) * 1980-04-30 1981-11-28 Niyuuman Kk Knock type note
JPS5864491U (ja) * 1981-10-28 1983-04-30 三菱鉛筆株式会社 回転収納式筆記具

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189418A (en) * 1964-04-01 1965-06-15 Wright W Gary Catalytic converter
US3231520A (en) * 1962-12-26 1966-01-25 Texaco Inc Catalyst and method of making same
US3248188A (en) * 1963-07-22 1966-04-26 Continental Motors Corp Flame arrester
US3441381A (en) * 1965-06-22 1969-04-29 Engelhard Ind Inc Apparatus for purifying exhaust gases of an internal combustion engine
US3441382A (en) * 1963-02-07 1969-04-29 Engelhard Ind Inc Catalyst cartridge
US3597165A (en) * 1969-06-18 1971-08-03 Engelhard Min & Chem Catalytic exhaust purifier
US3692497A (en) * 1971-05-20 1972-09-19 Engelhard Min & Chem Catalytic exhaust gas treatment apparatus
US3754870A (en) * 1971-08-26 1973-08-28 Universal Oil Prod Co Method and means of catalytically converting fluids
US3768982A (en) * 1971-06-22 1973-10-30 Ford Motor Co Catalytic converter with electrically preheated catalyst
US3770389A (en) * 1971-11-11 1973-11-06 Ford Motor Co Catalytic converter with electrically resistive catalyst support
US3771967A (en) * 1971-12-14 1973-11-13 Tenneco Inc Catalytic reactor with monolithic element
US3798006A (en) * 1971-12-14 1974-03-19 Tenneco Inc Catalytic converter for exhuast gases

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115866U (enrdf_load_stackoverflow) * 1974-07-22 1976-02-05

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231520A (en) * 1962-12-26 1966-01-25 Texaco Inc Catalyst and method of making same
US3441382A (en) * 1963-02-07 1969-04-29 Engelhard Ind Inc Catalyst cartridge
US3248188A (en) * 1963-07-22 1966-04-26 Continental Motors Corp Flame arrester
US3189418A (en) * 1964-04-01 1965-06-15 Wright W Gary Catalytic converter
US3441381A (en) * 1965-06-22 1969-04-29 Engelhard Ind Inc Apparatus for purifying exhaust gases of an internal combustion engine
US3597165A (en) * 1969-06-18 1971-08-03 Engelhard Min & Chem Catalytic exhaust purifier
US3692497A (en) * 1971-05-20 1972-09-19 Engelhard Min & Chem Catalytic exhaust gas treatment apparatus
US3768982A (en) * 1971-06-22 1973-10-30 Ford Motor Co Catalytic converter with electrically preheated catalyst
US3754870A (en) * 1971-08-26 1973-08-28 Universal Oil Prod Co Method and means of catalytically converting fluids
US3770389A (en) * 1971-11-11 1973-11-06 Ford Motor Co Catalytic converter with electrically resistive catalyst support
US3771967A (en) * 1971-12-14 1973-11-13 Tenneco Inc Catalytic reactor with monolithic element
US3798006A (en) * 1971-12-14 1974-03-19 Tenneco Inc Catalytic converter for exhuast gases

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134733A (en) * 1975-07-09 1979-01-16 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Apparatus for treatment of exhaust gases
US4218422A (en) * 1976-10-15 1980-08-19 Ford Motor Company Converter structure
US4305910A (en) * 1979-02-28 1981-12-15 Mitsui Engineering And Shipbuilding Co., Ltd. Catalytic reaction for reduction of nitrogen oxide
US4239733A (en) * 1979-04-16 1980-12-16 General Motors Corporation Catalytic converter having a monolith with support and seal means therefor

Also Published As

Publication number Publication date
CA967379A (en) 1975-05-13
JPS4978017A (enrdf_load_stackoverflow) 1974-07-27
AU465157B2 (en) 1975-09-18
GB1400980A (en) 1975-07-16
DE2322523A1 (de) 1974-05-16
FR2206788A5 (enrdf_load_stackoverflow) 1974-06-07
JPS5648684B2 (enrdf_load_stackoverflow) 1981-11-17
AU5240973A (en) 1974-08-22
DE2322523B2 (de) 1978-05-03
BR7305898D0 (pt) 1974-10-22

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