JPS5447921A - Device for lifting valve for internal combustion engine - Google Patents

Device for lifting valve for internal combustion engine

Info

Publication number
JPS5447921A
JPS5447921A JP11585577A JP11585577A JPS5447921A JP S5447921 A JPS5447921 A JP S5447921A JP 11585577 A JP11585577 A JP 11585577A JP 11585577 A JP11585577 A JP 11585577A JP S5447921 A JPS5447921 A JP S5447921A
Authority
JP
Japan
Prior art keywords
plunger
lifting
combustion engine
internal combustion
oil pressure
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
JP11585577A
Other languages
Japanese (ja)
Inventor
Shunichi Aoyama
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP11585577A priority Critical patent/JPS5447921A/en
Publication of JPS5447921A publication Critical patent/JPS5447921A/en
Pending legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

PURPOSE: To enable to vary the valve lift in a device for lifting the valve for an internal combustion engine and to obtain low noise and smooth transient characterristics thereof by operating the plunger of the device through a mechanism for amplifying the movement of the plunger.
CONSTITUTION: In case that the internal combustion engine speed is now low, namely, the opening area of an exhaust passage 20 to an oil pan is increased by a control valve 21 in response to the opening of a throttle or accelerator to reduce the oil pressure supplied through an oil feed hole 19 into second oil pressure chamber 17, when a piston 4 is retracted up upon rotation of a cam 6, the oil pressure in the first oil pressure chamber 12 rises to thereby start lifting a body 2 and accordingly a plunger 7. The lifting speeds of the body 2 and the plunger 7 depend upon the pressure receiving areas S7 and S2 of the plunger 7 and the body 2, respectively and springs 14 and 18. While the body 2 is lifting, the relative speed between the body 2 and the plunger 7 is small with the result that the plunger 7 will lift substantially the same speed as that of the piston 4
COPYRIGHT: (C)1979,JPO&Japio
JP11585577A 1977-09-26 1977-09-26 Device for lifting valve for internal combustion engine Pending JPS5447921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11585577A JPS5447921A (en) 1977-09-26 1977-09-26 Device for lifting valve for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11585577A JPS5447921A (en) 1977-09-26 1977-09-26 Device for lifting valve for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5447921A true JPS5447921A (en) 1979-04-16

Family

ID=14672798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11585577A Pending JPS5447921A (en) 1977-09-26 1977-09-26 Device for lifting valve for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5447921A (en)

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