JPS5572620A - 2-cycle internal combustion engine - Google Patents

2-cycle internal combustion engine

Info

Publication number
JPS5572620A
JPS5572620A JP14751178A JP14751178A JPS5572620A JP S5572620 A JPS5572620 A JP S5572620A JP 14751178 A JP14751178 A JP 14751178A JP 14751178 A JP14751178 A JP 14751178A JP S5572620 A JPS5572620 A JP S5572620A
Authority
JP
Japan
Prior art keywords
shaft gear
phase
difference control
cam shaft
control pulley
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
JP14751178A
Other languages
Japanese (ja)
Inventor
Masashi Kida
Shunzo Yamaguchi
Takeshi Tanaka
Masayuki Abe
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.)
Soken Inc
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP14751178A priority Critical patent/JPS5572620A/en
Publication of JPS5572620A publication Critical patent/JPS5572620A/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
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE: To prolong overlapping time of air exhaustion and air scavenging at high- speed operation and to improve air-filling efficiency, by linking operation of a cam shaft gear of a 2-cycle engine to a crank shaft gear through a phase-difference control pulley whose phase shifts by centrifugal force.
CONSTITUTION: A cam shaft gear 4 to be provided on the top of a cylinder block 10 drives scavenging valve 25. This gear 4 is linked to a crank shaft gear 3 through a timing belt 9. In this belt 9, a tensioner pulley 5 and a phase-difference control pulley 6, which are to be arranged in positions opposite each other, are engaged with each other. Between these pulleys 5 and 6, tensioner springs 82 and 83 are arranged through shifting members 84 and 85. And the phase-difference control pulley 6 presses the member 85 with increase of revolution (or r.p.m.). And therefore, distance between the pulleys 5 and 6 stretches, and the phase for the cam shaft gear 4 to open and close the scavenging valve 25 becomes longer.
COPYRIGHT: (C)1980,JPO&Japio
JP14751178A 1978-11-29 1978-11-29 2-cycle internal combustion engine Pending JPS5572620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14751178A JPS5572620A (en) 1978-11-29 1978-11-29 2-cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14751178A JPS5572620A (en) 1978-11-29 1978-11-29 2-cycle internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5572620A true JPS5572620A (en) 1980-05-31

Family

ID=15431997

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14751178A Pending JPS5572620A (en) 1978-11-29 1978-11-29 2-cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5572620A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01253517A (en) * 1988-03-31 1989-10-09 Shigeji Hakoyama Two-cycle diesel engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01253517A (en) * 1988-03-31 1989-10-09 Shigeji Hakoyama Two-cycle diesel engine

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