JPS57105511A - Apparatus for reducing pressure at starting of internal combustion engine - Google Patents

Apparatus for reducing pressure at starting of internal combustion engine

Info

Publication number
JPS57105511A
JPS57105511A JP18253780A JP18253780A JPS57105511A JP S57105511 A JPS57105511 A JP S57105511A JP 18253780 A JP18253780 A JP 18253780A JP 18253780 A JP18253780 A JP 18253780A JP S57105511 A JPS57105511 A JP S57105511A
Authority
JP
Japan
Prior art keywords
passage
engine
cylinder
starting
valve
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
JP18253780A
Other languages
Japanese (ja)
Other versions
JPH0219283B2 (en
Inventor
Tadao Oguri
Atsushi Sasaki
Katsumi Matsuura
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 JP18253780A priority Critical patent/JPS57105511A/en
Publication of JPS57105511A publication Critical patent/JPS57105511A/en
Publication of JPH0219283B2 publication Critical patent/JPH0219283B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Valve Device For Special Equipments (AREA)

Abstract

PURPOSE: To enable to turn a crank shaft smoothly at the time of starting an internal combustion engine, by providing a valve member in a passage for communicating a space formed between a piston and a combustion chamber in a cylinder to the atmosphere.
CONSTITUTION: At the time of starting an engine A, an exhaust valve 6 is turned to a position where the upper end 3a of the opening of an exhaust port 3 is located at its lowermost position, so as to register a passage 25 formed in the valve 25 with a passage 27 formed in the wall of a cylinder 2 and to thereby communicate a passage 24. The exhaust valve 6 is maintained at the position until the turning speed of the engine A is raised to a required starting speed. In this state, compressed air in the cylinder a is released through the passage 24, so that the engine speed can be raised promptly. When the engine speed is raised at least to a level higher than said required starting speed, the exhaust valve 6 is turned back to its original position where the passage 25 of the valve 6 comes out of registry with the passage 27 in the cylinder wall. Resultantly, the passage 27 is closed by the exhaust valve 6 and the passage 24 is closed. In this state, air is compressed in the cylinder a in an ordinary manner, and the engine A is started by the sparks produced by an ignition plug 23.
COPYRIGHT: (C)1982,JPO&Japio
JP18253780A 1980-12-23 1980-12-23 Apparatus for reducing pressure at starting of internal combustion engine Granted JPS57105511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18253780A JPS57105511A (en) 1980-12-23 1980-12-23 Apparatus for reducing pressure at starting of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18253780A JPS57105511A (en) 1980-12-23 1980-12-23 Apparatus for reducing pressure at starting of internal combustion engine

Publications (2)

Publication Number Publication Date
JPS57105511A true JPS57105511A (en) 1982-07-01
JPH0219283B2 JPH0219283B2 (en) 1990-05-01

Family

ID=16120027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18253780A Granted JPS57105511A (en) 1980-12-23 1980-12-23 Apparatus for reducing pressure at starting of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57105511A (en)

Cited By (7)

* 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
US4829945A (en) * 1986-06-26 1989-05-16 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two-cycle engines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0473014A (en) * 1990-07-16 1992-03-09 Kojima Youkadou:Kk Incense material

Cited By (7)

* 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
US4829945A (en) * 1986-06-26 1989-05-16 Honda Giken Kogyo Kabushiki Kaisha Exhaust timing control device for two-cycle engines

Also Published As

Publication number Publication date
JPH0219283B2 (en) 1990-05-01

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