GB1385331A - Catalytic reactor in the exhaust system of a motor vehicle - Google Patents

Catalytic reactor in the exhaust system of a motor vehicle

Info

Publication number
GB1385331A
GB1385331A GB366472A GB366472A GB1385331A GB 1385331 A GB1385331 A GB 1385331A GB 366472 A GB366472 A GB 366472A GB 366472 A GB366472 A GB 366472A GB 1385331 A GB1385331 A GB 1385331A
Authority
GB
United Kingdom
Prior art keywords
temperature
detector
air
pipe
motor vehicle
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
Application number
GB366472A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1385331A publication Critical patent/GB1385331A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • 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
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/02—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of high temperature, e.g. overheating of catalytic reactor
    • 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

Landscapes

  • 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)
  • Exhaust Gas After Treatment (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

1385331 Purifying exhaust gases NISSAN MOTOR CO Ltd 26 Jan 1972 [20 July 1971] 3664/72 Heading F1B [Also in Division H1] A catalytic reactor 12 in a motor vehicle exhaust system has an air pipe 16 extending through the catalyst bed 10 and a temperature detector 30 which produces an electrical signal when the temperature of pressurized air leaving the air pipe exceeds a pre-selected value. The air is supplied to the pipe 16 by a secondary air source 20. The detector 30 may comprise a bimetallic strip 32 which abuts an adjustable contact 38 to complete an electrical circuit when the air temperature in the chamber 26, bearing a relationship to the catalyst bed temperature, exceeds the pre-selected value. The detector (40), Fig. 2 (not shown) may comprise a rod (44) movable axially against spring bias by a temperature detecting portion (42). The detector 30 may energize a solenoid valve 52, Fig. 4, to change the connection of diaphragm chamber 64 to the intake manifold to connection with the atmosphere. The spring-biased diaphragm then moves a valve member 72 to divert the exhaust gases through a reactor by-pass pipe 174.
GB366472A 1971-07-20 1972-01-26 Catalytic reactor in the exhaust system of a motor vehicle Expired GB1385331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971064081U JPS5042902Y2 (en) 1971-07-20 1971-07-20

Publications (1)

Publication Number Publication Date
GB1385331A true GB1385331A (en) 1975-02-26

Family

ID=13247765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB366472A Expired GB1385331A (en) 1971-07-20 1972-01-26 Catalytic reactor in the exhaust system of a motor vehicle

Country Status (2)

Country Link
JP (1) JPS5042902Y2 (en)
GB (1) GB1385331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140314646A1 (en) * 2011-12-01 2014-10-23 Umicore Ag & Co. Kg Method for Operating Exhaust Gas Purification Systems
WO2015166055A1 (en) * 2014-04-30 2015-11-05 MAHLE Behr GmbH & Co. KG Exhaust gas system for a motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140314646A1 (en) * 2011-12-01 2014-10-23 Umicore Ag & Co. Kg Method for Operating Exhaust Gas Purification Systems
US9120057B2 (en) * 2011-12-01 2015-09-01 Umicore Ag & Co. Kg Method for operating exhaust gas purification systems
WO2015166055A1 (en) * 2014-04-30 2015-11-05 MAHLE Behr GmbH & Co. KG Exhaust gas system for a motor vehicle
US10240488B2 (en) 2014-04-30 2019-03-26 MAHLE Behr GmbH & Co. KG Exhaust gas system for a motor vehicle

Also Published As

Publication number Publication date
JPS5042902Y2 (en) 1975-12-08
JPS4847838U (en) 1973-06-23

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee