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JPS57203814A - Exhaust device for two cycle engine - Google Patents

Exhaust device for two cycle engine

Info

Publication number
JPS57203814A
JPS57203814A JP8902981A JP8902981A JPS57203814A JP S57203814 A JPS57203814 A JP S57203814A JP 8902981 A JP8902981 A JP 8902981A JP 8902981 A JP8902981 A JP 8902981A JP S57203814 A JPS57203814 A JP S57203814A
Authority
JP
Japan
Prior art keywords
exhaust
exhaust gas
exhaust pipe
catalyzer
upstream
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.)
Pending
Application number
JP8902981A
Other languages
Japanese (ja)
Inventor
Yoshinobu Yashiro
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.)
Yamaha Motor Co Ltd
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
Priority to JP8902981A priority Critical patent/JPS57203814A/en
Publication of JPS57203814A publication Critical patent/JPS57203814A/en
Pending 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
    • F01N3/24—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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • 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
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

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)
  • Ceramic Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE:To contrive vaporization of oil in exhaust gas by increasing an exhaust gas temperature and to reduce exhaust smoke, by providing a catalyzar on an inner wall more upstream than an exhaust pipe to be connected with and directly after the exhaust pipe. CONSTITUTION:A catalyzer 7 formed by letting a metallic particulate having character of an oxidized catalyzer carry extending over a whole length of the internal circumference of a cylindrically molded ceramic carrier is provided in an exhaust pipe 5 directly after an exhaust opening 3 which is more upstream of an exhaust pipe 6a forming an exhaust course than the exhaust opening 3 formed on a wall of a cylinder (a). This catalyzer 7 is held by fitting it in a concave notched part 8 formed by notching the exhaust pipe 5 extending from an upstream to a downstream sides of the same. A temperature of exhaust gas is increased and oil contained in the exhaust gas can be vaporized as the exhaust gas is heated by chemical reaction when the exhaust gas is touched to the catalyzer 7. The oil, therefore, can be prevented from remaining and dispersing into the exhaust pipe 6a, and white smoke in the exhaust gas can be prevented.
JP8902981A 1981-06-09 1981-06-09 Exhaust device for two cycle engine Pending JPS57203814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8902981A JPS57203814A (en) 1981-06-09 1981-06-09 Exhaust device for two cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8902981A JPS57203814A (en) 1981-06-09 1981-06-09 Exhaust device for two cycle engine

Publications (1)

Publication Number Publication Date
JPS57203814A true JPS57203814A (en) 1982-12-14

Family

ID=13959472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8902981A Pending JPS57203814A (en) 1981-06-09 1981-06-09 Exhaust device for two cycle engine

Country Status (1)

Country Link
JP (1) JPS57203814A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735046A (en) * 1985-06-08 1988-04-05 Sanshin Kogyo Kabushiki Kaisha Oil remover from exhaust gas of marine propulsion unit
US4772236A (en) * 1986-02-28 1988-09-20 Shanshin Kogyo Kabushiki Kaisha Exhaust gas purifying device for marine engine
JPH0239516U (en) * 1988-09-09 1990-03-16
US4924820A (en) * 1987-09-04 1990-05-15 Orbital Engine Company Proprietary Limited Exhaust gas treatment for a two stroke engine
US4938178A (en) * 1987-10-26 1990-07-03 Orbital Engine Company Proprietary Limited Two stroke cycle internal combustion engines
US5212949A (en) * 1990-05-22 1993-05-25 Sanshin Kogyo Kabushiki Kaisha Exhaust gas cleaning system for a marine propulsion unit
US5378180A (en) * 1992-11-26 1995-01-03 Sanshin Kogyo Kabushiki Kaisha Exhaust system for outboard motor
US5546748A (en) * 1992-11-27 1996-08-20 Sanshin Kogyo Kabushiki Kaisha Exhaust system for outboard motor
US5554057A (en) * 1992-12-14 1996-09-10 Yamaha Hatsudoki Kabushiki Kaisha Exhaust treatment for outboard motor
US5911683A (en) * 1998-04-02 1999-06-15 Zeuna-Starker Gmbh & Co. Kg Exhaust-gas collecting and cleaning device as well as exhaust-gas device for a multi-cylinder engine
USRE37230E1 (en) * 1987-10-26 2001-06-19 Orbital Engine Company (Australia) Proprietary Limited Two stroke cycle internal combustion engines
JP2013124637A (en) * 2011-12-16 2013-06-24 Honda Motor Co Ltd Exhaust pipe structure of internal combustion engine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735046A (en) * 1985-06-08 1988-04-05 Sanshin Kogyo Kabushiki Kaisha Oil remover from exhaust gas of marine propulsion unit
US4772236A (en) * 1986-02-28 1988-09-20 Shanshin Kogyo Kabushiki Kaisha Exhaust gas purifying device for marine engine
US4924820A (en) * 1987-09-04 1990-05-15 Orbital Engine Company Proprietary Limited Exhaust gas treatment for a two stroke engine
US4938178A (en) * 1987-10-26 1990-07-03 Orbital Engine Company Proprietary Limited Two stroke cycle internal combustion engines
USRE37230E1 (en) * 1987-10-26 2001-06-19 Orbital Engine Company (Australia) Proprietary Limited Two stroke cycle internal combustion engines
JPH0239516U (en) * 1988-09-09 1990-03-16
US5212949A (en) * 1990-05-22 1993-05-25 Sanshin Kogyo Kabushiki Kaisha Exhaust gas cleaning system for a marine propulsion unit
US5378180A (en) * 1992-11-26 1995-01-03 Sanshin Kogyo Kabushiki Kaisha Exhaust system for outboard motor
US5546748A (en) * 1992-11-27 1996-08-20 Sanshin Kogyo Kabushiki Kaisha Exhaust system for outboard motor
US5554057A (en) * 1992-12-14 1996-09-10 Yamaha Hatsudoki Kabushiki Kaisha Exhaust treatment for outboard motor
US5911683A (en) * 1998-04-02 1999-06-15 Zeuna-Starker Gmbh & Co. Kg Exhaust-gas collecting and cleaning device as well as exhaust-gas device for a multi-cylinder engine
JP2013124637A (en) * 2011-12-16 2013-06-24 Honda Motor Co Ltd Exhaust pipe structure of internal combustion engine

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