JPS57188716A - Variable valve timing device - Google Patents

Variable valve timing device

Info

Publication number
JPS57188716A
JPS57188716A JP7215981A JP7215981A JPS57188716A JP S57188716 A JPS57188716 A JP S57188716A JP 7215981 A JP7215981 A JP 7215981A JP 7215981 A JP7215981 A JP 7215981A JP S57188716 A JPS57188716 A JP S57188716A
Authority
JP
Japan
Prior art keywords
valve timing
cam shaft
valve
holder
high speed
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
JP7215981A
Other languages
Japanese (ja)
Other versions
JPS646323B2 (en
Inventor
Shoichi Honda
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP7215981A priority Critical patent/JPS57188716A/en
Priority to DE19823217203 priority patent/DE3217203A1/en
Priority to FR8208498A priority patent/FR2505926A1/en
Publication of JPS57188716A publication Critical patent/JPS57188716A/en
Priority to US06/700,327 priority patent/US4535733A/en
Publication of JPS646323B2 publication Critical patent/JPS646323B2/ja
Granted 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L13/0047—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction the movement of the valves resulting from the sum of the simultaneous actions of at least two cams, the cams being independently variable in phase in respect of each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

PURPOSE:To simplify the changing operation of valve timing in a variable valve timing device for intake and exhaust valves in an engine, by incorporating both high and low cam shafts on one cam shaft holder, and as well by making the holder swingable so that the valve timing is changed. CONSTITUTION:A low speed cam shaft 3a alone acts to a rocker arm 2 when a cam shaft holder 4 is swung upward upon engine low speed, thereby the valve 1 is operated to carry out the action along the characteristic curve denoted by (b). Then the vlave shaft holder 4 is swung downward in order to change the valve timing into that for high speed, so that a high speed cam shaft 3b is gradually moved down to a position where the high speed cam shaft 3b acts to the rocker arm 2. Thus, the oening and closing of the valve 1 are controlled by the cam shaft 3b so that the valve follows the characteristic curve denoted by (a). With this arrangement, the valve timing may be changed by a simple operation.
JP7215981A 1981-05-15 1981-05-15 Variable valve timing device Granted JPS57188716A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7215981A JPS57188716A (en) 1981-05-15 1981-05-15 Variable valve timing device
DE19823217203 DE3217203A1 (en) 1981-05-15 1982-05-07 VARIABLE VALVE CONTROL
FR8208498A FR2505926A1 (en) 1981-05-15 1982-05-14 DISTRIBUTION ADJUSTING APPARATUS FOR INTERNAL COMBUSTION ENGINE
US06/700,327 US4535733A (en) 1981-05-15 1985-02-12 Variable valve timing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7215981A JPS57188716A (en) 1981-05-15 1981-05-15 Variable valve timing device

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP9526481A Division JPS57188718A (en) 1981-05-15 1981-06-22 Variable valve timing device in engine
JP9526381A Division JPS57188714A (en) 1981-05-15 1981-06-22 Valve cam gear in engine

Publications (2)

Publication Number Publication Date
JPS57188716A true JPS57188716A (en) 1982-11-19
JPS646323B2 JPS646323B2 (en) 1989-02-02

Family

ID=13481188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7215981A Granted JPS57188716A (en) 1981-05-15 1981-05-15 Variable valve timing device

Country Status (1)

Country Link
JP (1) JPS57188716A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074260A (en) * 1989-04-27 1991-12-24 Honda Giken Kogyo Kabushiki Kaisha Valve driving device and valve driving method for internal combustion engine
US5178105A (en) * 1990-08-23 1993-01-12 Ricardo Consulting Engineers Limited Valve gear for internal combustion engines
WO2019120848A1 (en) * 2017-12-21 2019-06-27 Volkswagen Aktiengesellschaft Method for operating a combustion engine, and combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0280724U (en) * 1988-12-09 1990-06-21

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074260A (en) * 1989-04-27 1991-12-24 Honda Giken Kogyo Kabushiki Kaisha Valve driving device and valve driving method for internal combustion engine
US5178105A (en) * 1990-08-23 1993-01-12 Ricardo Consulting Engineers Limited Valve gear for internal combustion engines
WO2019120848A1 (en) * 2017-12-21 2019-06-27 Volkswagen Aktiengesellschaft Method for operating a combustion engine, and combustion engine
CN111356828A (en) * 2017-12-21 2020-06-30 大众汽车有限公司 Method for operating an internal combustion engine and internal combustion engine
CN111356828B (en) * 2017-12-21 2023-04-18 大众汽车有限公司 Method for operating an internal combustion engine and internal combustion engine

Also Published As

Publication number Publication date
JPS646323B2 (en) 1989-02-02

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