GB1482718A - Internal combustion engine capable of reducing harmful emissions - Google Patents

Internal combustion engine capable of reducing harmful emissions

Info

Publication number
GB1482718A
GB1482718A GB45877/74A GB4587774A GB1482718A GB 1482718 A GB1482718 A GB 1482718A GB 45877/74 A GB45877/74 A GB 45877/74A GB 4587774 A GB4587774 A GB 4587774A GB 1482718 A GB1482718 A GB 1482718A
Authority
GB
United Kingdom
Prior art keywords
chamber
group
combustion
air
exhaust
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
GB45877/74A
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
Priority claimed from JP12568573A external-priority patent/JPS5074005A/ja
Priority claimed from JP13244873A external-priority patent/JPS5082423A/ja
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1482718A publication Critical patent/GB1482718A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F02B1/06—Methods of operating
    • 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
    • F01N13/011—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 purifying devices arranged in parallel
    • F01N13/017—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 purifying devices arranged in parallel 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
    • 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
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

1482718 IC piston engines NISSAN MOTOR CO Ltd 23 Oct 1974 [8 Nov 1973 26 Nov 1973] 45877/74 Heading F1B An I.C. engine comprises a first group of combustion chambers C 1 , C 4 , Fig. 1, supplied with an air/fuel mixture richer than the stoichiometric air to fuel ratio (16:1) and a second group of combustion chambers C 2 , C 3 of a different shape to the first group and supplied with an air/fuel mixture leaner than the stoichiometric ratio. The chambers in the first group may be wedge shaped in crosssection or hemispherical, the spark-plug in each chamber lying close to the piston head at t.d.c. Each chamber in the second group includes an eccentrically disposed pre-combustion chamber 34, Fig. 4, which contains a spark-plug and which facilitates the combustion of the leaner mixture. The exhaust gases from each group of combustion chambers mix and burn in a reburning chamber 56. Catalytic converters 54a, 54b downstream of chamber 56 continue the oxidation of the exhaust gases which are then exhausted to the atmosphere. In a modification, Fig. 6 (not shown), the catalytic converter lies in the exhaust pipe and the reburning chamber contains partition walls forming a long exhaust passage, alternatively the reburning chamber may be replaced by an enlarged exhaust manifold.
GB45877/74A 1973-11-08 1974-10-23 Internal combustion engine capable of reducing harmful emissions Expired GB1482718A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12568573A JPS5074005A (en) 1973-11-08 1973-11-08
JP13244873A JPS5082423A (en) 1973-11-26 1973-11-26

Publications (1)

Publication Number Publication Date
GB1482718A true GB1482718A (en) 1977-08-10

Family

ID=26462039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45877/74A Expired GB1482718A (en) 1973-11-08 1974-10-23 Internal combustion engine capable of reducing harmful emissions

Country Status (3)

Country Link
AU (1) AU459920B2 (en)
DE (1) DE2452675A1 (en)
GB (1) GB1482718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2037370A (en) * 1978-12-08 1980-07-09 Nissan Motor Internal combustion engine exhaust passage structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4024801A1 (en) * 1990-08-04 1992-02-06 Porsche Ag EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2037370A (en) * 1978-12-08 1980-07-09 Nissan Motor Internal combustion engine exhaust passage structure
US4257372A (en) * 1978-12-08 1981-03-24 Nissan Motor Company, Limited Internal combustion engine exhaust passage structure

Also Published As

Publication number Publication date
DE2452675A1 (en) 1975-05-15
AU7484774A (en) 1975-04-10
AU459920B2 (en) 1975-04-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee