TWI234604B - Engine - Google Patents

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Publication number
TWI234604B
TWI234604B TW093112341A TW93112341A TWI234604B TW I234604 B TWI234604 B TW I234604B TW 093112341 A TW093112341 A TW 093112341A TW 93112341 A TW93112341 A TW 93112341A TW I234604 B TWI234604 B TW I234604B
Authority
TW
Taiwan
Prior art keywords
exhaust gas
secondary air
engine
supply path
air supply
Prior art date
Application number
TW093112341A
Other languages
Chinese (zh)
Other versions
TW200508479A (en
Inventor
Hidehiro Nishimura
Osamu Takii
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Publication of TW200508479A publication Critical patent/TW200508479A/en
Application granted granted Critical
Publication of TWI234604B publication Critical patent/TWI234604B/en

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
    • F01N3/24—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
    • F01N3/18—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
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
    • 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

  • 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)

Abstract

To provide an engine which can perform exhaust gas purification in all operation areas surely. In an exhaust gas purifier in which catalysts are interposed in an exhaust gas passage 5 of an engine 1, the catalysts include a reduction catalyst 8, which is arranged in the exhaust gas passage 5, and an oxidation catalyst 9, which is arranged in the exhaust passage 5 further on a downstream side than the reduction catalyst 8, a main secondary air supply path 12a is connected between the reduction and the oxidation catalysts 8 and 9 of the exhaust gas passage 5, and an auxiliary secondary air supply path 12b is connected to an upstream side of the reduction catalyst 8 to supply secondary air from the auxiliary secondary air supply path 12b when the engine is in a cold state.
TW093112341A 2003-05-01 2004-04-30 Engine TWI234604B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003126258 2003-05-01
JP2004084602 2004-03-23

Publications (2)

Publication Number Publication Date
TW200508479A TW200508479A (en) 2005-03-01
TWI234604B true TWI234604B (en) 2005-06-21

Family

ID=33422090

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093112341A TWI234604B (en) 2003-05-01 2004-04-30 Engine

Country Status (2)

Country Link
TW (1) TWI234604B (en)
WO (1) WO2004097190A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1936288B (en) * 2005-09-19 2010-05-26 徐楠 Environment-protective motor vehicle tail-gas purifying silencer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337228A1 (en) * 1973-07-21 1975-02-06 Daimler Benz Ag COMBUSTION MACHINE WITH ONE EXHAUST PIPE WITH REDUCING CATALYST AND OXYDATION CATALYST
JPS55135114U (en) * 1980-02-27 1980-09-25
JPH0422026Y2 (en) * 1985-09-05 1992-05-20
JPH0586847A (en) * 1991-09-26 1993-04-06 Mazda Motor Corp Exhaust emission control device for engine having mechanical supercharger

Also Published As

Publication number Publication date
TW200508479A (en) 2005-03-01
WO2004097190A1 (en) 2004-11-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees