JPS5647609A - Exhaust timing controller for two-cycle engine - Google Patents

Exhaust timing controller for two-cycle engine

Info

Publication number
JPS5647609A
JPS5647609A JP12221879A JP12221879A JPS5647609A JP S5647609 A JPS5647609 A JP S5647609A JP 12221879 A JP12221879 A JP 12221879A JP 12221879 A JP12221879 A JP 12221879A JP S5647609 A JPS5647609 A JP S5647609A
Authority
JP
Japan
Prior art keywords
engine
movable wall
exhaust
stopper
exhaust timing
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.)
Granted
Application number
JP12221879A
Other languages
Japanese (ja)
Other versions
JPS6249456B2 (en
Inventor
Masahiro Takayama
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 JP12221879A priority Critical patent/JPS5647609A/en
Publication of JPS5647609A publication Critical patent/JPS5647609A/en
Publication of JPS6249456B2 publication Critical patent/JPS6249456B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/028—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation for two-stroke engines
    • F02D13/0284—Variable control of exhaust valves only
    • 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
    • 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)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE:To start an engine in its exhaust timing temporarily advanced and improve the characteristic of starting of the engine, by providing a stopper that holds a movable wall member for a variable exhaust timing of the engine at the upward moving position. CONSTITUTION:On the upper level in the vicinity of an exhaust port 6 on the inner surface of a cylinder 1, a rotary body 11 with a movable wall 11b in housed. In accordance with a rotary speed a spring board 24 of an actuator 14 is rotated to move the movable wall member 11b through a lever 13. In this way, the timing of an exhaust passage 8 allowed to be opened or closed in a combustion chamber 4 can be varied. When an engine is started, the spring board 24 is stopped to a stopper 25 to hold the movable wall 11b at a start position C and advance the exhaust timing. After a starting of the engine, the actuator 14 is operated to shift an arm lever 20' to the side of a lower limit position and automatically remove the spring board 24 from the stopper 25. In this way, the starting characteristic of the engine can be improved.
JP12221879A 1979-09-21 1979-09-21 Exhaust timing controller for two-cycle engine Granted JPS5647609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12221879A JPS5647609A (en) 1979-09-21 1979-09-21 Exhaust timing controller for two-cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12221879A JPS5647609A (en) 1979-09-21 1979-09-21 Exhaust timing controller for two-cycle engine

Publications (2)

Publication Number Publication Date
JPS5647609A true JPS5647609A (en) 1981-04-30
JPS6249456B2 JPS6249456B2 (en) 1987-10-20

Family

ID=14830466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12221879A Granted JPS5647609A (en) 1979-09-21 1979-09-21 Exhaust timing controller for two-cycle engine

Country Status (1)

Country Link
JP (1) JPS5647609A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723514A (en) * 1985-09-11 1988-02-09 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control system for two-cycle engines
US4763613A (en) * 1986-05-14 1988-08-16 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control system for a two cycle engine
US4768473A (en) * 1985-07-22 1988-09-06 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control apparatus
US4776305A (en) * 1986-05-20 1988-10-11 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two-cycle engines
US4793347A (en) * 1986-01-29 1988-12-27 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two cycle engines
US4807571A (en) * 1985-07-22 1989-02-28 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768473A (en) * 1985-07-22 1988-09-06 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control apparatus
US4807571A (en) * 1985-07-22 1989-02-28 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control apparatus
US4723514A (en) * 1985-09-11 1988-02-09 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control system for two-cycle engines
US4793347A (en) * 1986-01-29 1988-12-27 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two cycle engines
US4763613A (en) * 1986-05-14 1988-08-16 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control system for a two cycle engine
US4776305A (en) * 1986-05-20 1988-10-11 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two-cycle engines

Also Published As

Publication number Publication date
JPS6249456B2 (en) 1987-10-20

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