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GB1361854A - Engine exhaust systems for vehicles - Google Patents

Engine exhaust systems for vehicles

Info

Publication number
GB1361854A
GB1361854A GB3476171A GB3476171A GB1361854A GB 1361854 A GB1361854 A GB 1361854A GB 3476171 A GB3476171 A GB 3476171A GB 3476171 A GB3476171 A GB 3476171A GB 1361854 A GB1361854 A GB 1361854A
Authority
GB
United Kingdom
Prior art keywords
outlet port
engine
conduit
main
air
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
GB3476171A
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.)
Zenith Carburetter Co Ltd
Original Assignee
Zenith Carburetter 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 Zenith Carburetter Co Ltd filed Critical Zenith Carburetter Co Ltd
Priority to GB3476171A priority Critical patent/GB1361854A/en
Priority to DE2235596A priority patent/DE2235596A1/en
Priority to AU44821/72A priority patent/AU4482172A/en
Priority to FR7226397A priority patent/FR2147624A5/fr
Priority to IT69384/72A priority patent/IT964757B/en
Publication of GB1361854A publication Critical patent/GB1361854A/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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/227—Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane valves
    • 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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • 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

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

Abstract

1361854 Treating exhaust gases ZENITH CARBURETTA CO Ltd 14 July 1972 [23 July 1971 3 Dec 1971] 34761/71 and 56182/71 Heading F1B In an I. C. engine exhaust system, exhaust gases and air are fed to a reactor 39 for combustion, the air supply rate depending upon the rotational speed of the engine and the load upon it. The air is supplied to the reactor by an engine driven pump 40 through a valve member 41 having an inlet port 43, a main outlet port 44 and a secondary outlet port 45. The secondary outlet port is at the end of a shunt conduit 46 containing of flow restricting device 47. A main conduit 49 extends between the inlet port 43 and the main outlet port 45. A valve member 52, controlled by a spring-loaded diaphragm 54 in response to the suction in the engine inlet 36, determines whether the flow passes through the main conduit 49 or shunt conduit 46. The arrangement is such that at low loads and high suction the flow is through the shunt conduit and at high loads through the main conduit. The mass flow of air supplied to the reactor is therefore less at low loads than high loads.
GB3476171A 1971-07-23 1971-07-23 Engine exhaust systems for vehicles Expired GB1361854A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3476171A GB1361854A (en) 1971-07-23 1971-07-23 Engine exhaust systems for vehicles
DE2235596A DE2235596A1 (en) 1971-07-23 1972-07-20 EXHAUST ARRANGEMENT IN COMBUSTION ENGINES FOR MOTOR VEHICLES
AU44821/72A AU4482172A (en) 1971-07-23 1972-07-20 I.c. engine exhaust systems for vehicles
FR7226397A FR2147624A5 (en) 1971-07-23 1972-07-21
IT69384/72A IT964757B (en) 1971-07-23 1972-07-21 EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINES OF VEHICLES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3476171A GB1361854A (en) 1971-07-23 1971-07-23 Engine exhaust systems for vehicles
GB5618271 1971-12-03

Publications (1)

Publication Number Publication Date
GB1361854A true GB1361854A (en) 1974-07-30

Family

ID=26262432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3476171A Expired GB1361854A (en) 1971-07-23 1971-07-23 Engine exhaust systems for vehicles

Country Status (5)

Country Link
AU (1) AU4482172A (en)
DE (1) DE2235596A1 (en)
FR (1) FR2147624A5 (en)
GB (1) GB1361854A (en)
IT (1) IT964757B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5385217A (en) * 1977-01-06 1978-07-27 Toyota Motor Corp Controller for secondary air of internal combustion engine
JPS5411211U (en) * 1977-06-28 1979-01-24

Also Published As

Publication number Publication date
AU4482172A (en) 1974-01-24
FR2147624A5 (en) 1973-03-09
DE2235596A1 (en) 1973-02-01
IT964757B (en) 1974-01-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee