JPS54155309A - Valve moving system for internal combustion engine - Google Patents

Valve moving system for internal combustion engine

Info

Publication number
JPS54155309A
JPS54155309A JP6285878A JP6285878A JPS54155309A JP S54155309 A JPS54155309 A JP S54155309A JP 6285878 A JP6285878 A JP 6285878A JP 6285878 A JP6285878 A JP 6285878A JP S54155309 A JPS54155309 A JP S54155309A
Authority
JP
Japan
Prior art keywords
oil pressure
pressure chamber
moving system
chamber
tappet body
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
JP6285878A
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 JP6285878A priority Critical patent/JPS54155309A/en
Publication of JPS54155309A publication Critical patent/JPS54155309A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To control the timing of a valve moving system depending on the running condition of an engine and reduce the impact upon the valve moving system at the starting time of the valve lift due to a squeeze effect which is produced when a communication hole between a main oil pressure chamber and a control oil pressure chamber is shut off, by a simple construction.
CONSTITUTION: An oil pressure chamber is defined between a tappet body 6 which follows the motion of a cam 5 and a fixed wall 3 penetrated by a piston part 21a of a cap 21 whereon a push rod 20 is seated. The oil pressure chamber is divided into the main oil pressure chamber M consisting of a chamber A surrounded by the fixed wall 3 and a fixed cylinder 4 and a chamber B located between a free piston 16 and a plunger 10 and a communication hole 8 of a moving cylinder 7, and the control oil pressure chamber N surrounded by the tappet body 6 and the free pistons 15, 16. A communication passage 26 provided in the free piston 16 is shut off by the tappet body 6 in a prescribed lift position corresponding to the running condition of the engine to set the volume of the main oil pressure chamber M.
COPYRIGHT: (C)1979,JPO&Japio
JP6285878A 1978-05-27 1978-05-27 Valve moving system for internal combustion engine Pending JPS54155309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6285878A JPS54155309A (en) 1978-05-27 1978-05-27 Valve moving system for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6285878A JPS54155309A (en) 1978-05-27 1978-05-27 Valve moving system for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS54155309A true JPS54155309A (en) 1979-12-07

Family

ID=13212408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6285878A Pending JPS54155309A (en) 1978-05-27 1978-05-27 Valve moving system for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS54155309A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159907A (en) * 1991-03-06 1992-11-03 Firma Carl Freudenberg Hydraulic valve lifter
WO2018053892A1 (en) * 2016-09-22 2018-03-29 西华大学 Variable valve tappet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159907A (en) * 1991-03-06 1992-11-03 Firma Carl Freudenberg Hydraulic valve lifter
WO2018053892A1 (en) * 2016-09-22 2018-03-29 西华大学 Variable valve tappet
GB2568621A (en) * 2016-09-22 2019-05-22 Univ Xihua Variable valve tappet
GB2568621B (en) * 2016-09-22 2019-10-09 Univ Xihua Variable valve tappet

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