JPS5459517A - Valve lift mechanism for internal combusion engine - Google Patents

Valve lift mechanism for internal combusion engine

Info

Publication number
JPS5459517A
JPS5459517A JP12624777A JP12624777A JPS5459517A JP S5459517 A JPS5459517 A JP S5459517A JP 12624777 A JP12624777 A JP 12624777A JP 12624777 A JP12624777 A JP 12624777A JP S5459517 A JPS5459517 A JP S5459517A
Authority
JP
Japan
Prior art keywords
cylinder
piston
rocker arm
intake
exhaust valves
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
JP12624777A
Other languages
Japanese (ja)
Inventor
Kazuyuki Miidokoro
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 JP12624777A priority Critical patent/JPS5459517A/en
Publication of JPS5459517A publication Critical patent/JPS5459517A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make the opening and closing timings of intake and exhaust valves variable by forming a rocker arm, which is operative to open and close the intake and exhaust valves, with such a cylinder at one end portion thereof as has a slidable piston so that an oil pressure may be acted upon the inside of the cylinder.
CONSTITUTION: A rocker arm 4, which is formed with such a rocker shaft as is made coactive with a not-shown cam shaft driven by an engine, opens and closes at its one end two not-shown intake and exhaust valves through a chip 5. The rocker arm 4 has its other end formed with a cylinder portion 6, and a cam 11 is brought into contact with a piston 10 which is made slidable within the cylinder portion 6. An oil pressure is acted upon the inside of the cylinder 6 through an oil port 8, and the piston 10 is moved up and down in accordance with the r.p.m. so that the period of the rocker arm 4 may be varied. There is mounted in the cylinder 6 a small piston 9 which can be vented to the atmosphere and which is opened and closed, if desired so, so that the arm 4 may be prevented from fluctuations
COPYRIGHT: (C)1979,JPO&Japio
JP12624777A 1977-10-19 1977-10-19 Valve lift mechanism for internal combusion engine Pending JPS5459517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12624777A JPS5459517A (en) 1977-10-19 1977-10-19 Valve lift mechanism for internal combusion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12624777A JPS5459517A (en) 1977-10-19 1977-10-19 Valve lift mechanism for internal combusion engine

Publications (1)

Publication Number Publication Date
JPS5459517A true JPS5459517A (en) 1979-05-14

Family

ID=14930432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12624777A Pending JPS5459517A (en) 1977-10-19 1977-10-19 Valve lift mechanism for internal combusion engine

Country Status (1)

Country Link
JP (1) JPS5459517A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0628205U (en) * 1992-09-12 1994-04-15 愛知機械工業株式会社 Valve lift mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0628205U (en) * 1992-09-12 1994-04-15 愛知機械工業株式会社 Valve lift mechanism

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