JPS60113007A - Control device of intake and exhaust valve in internal- combustion engine - Google Patents

Control device of intake and exhaust valve in internal- combustion engine

Info

Publication number
JPS60113007A
JPS60113007A JP21960383A JP21960383A JPS60113007A JP S60113007 A JPS60113007 A JP S60113007A JP 21960383 A JP21960383 A JP 21960383A JP 21960383 A JP21960383 A JP 21960383A JP S60113007 A JPS60113007 A JP S60113007A
Authority
JP
Japan
Prior art keywords
valve
engine
speed
seat
control
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
JP21960383A
Other languages
Japanese (ja)
Inventor
Shunichi Aoyama
Takashi Fujii
Manabu Kato
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 JP21960383A priority Critical patent/JPS60113007A/en
Publication of JPS60113007A publication Critical patent/JPS60113007A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46Component parts, details, or accessories, not provided for in preceding subgroups
    • F01L1/462Valve return spring arrangements

Abstract

PURPOSE:To increase the tension of a valve spring so as to prevent a valve from surging, by moving a seat of the valve spring in the side of a cylinder head when an engine is driven at a high speed, in the case of a control device which switches an acting characteristic of the valve in accordance with a speed of the engine. CONSTITUTION:The open-close acting characteristic of a valve 41 is changed in accordance with the speed of an engine. Of the seats 45, 47 of a valve spring 48 urging the valve 41 in its closing direction, the seat 45 in the side of a cylinder head 42 is movably provided in the direction of an axial line of the valve, increasing setting force of the valve spring by applying the pressure of oil to the bottom of the seat 45 through a supply oil passage 49 when the engine is driven at a high speed. In this way, surging of the valve can be prevented without causing the necessity for increasing its inertia mass.
JP21960383A 1983-11-24 1983-11-24 Control device of intake and exhaust valve in internal- combustion engine Pending JPS60113007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21960383A JPS60113007A (en) 1983-11-24 1983-11-24 Control device of intake and exhaust valve in internal- combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21960383A JPS60113007A (en) 1983-11-24 1983-11-24 Control device of intake and exhaust valve in internal- combustion engine

Publications (1)

Publication Number Publication Date
JPS60113007A true JPS60113007A (en) 1985-06-19

Family

ID=16738115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21960383A Pending JPS60113007A (en) 1983-11-24 1983-11-24 Control device of intake and exhaust valve in internal- combustion engine

Country Status (1)

Country Link
JP (1) JPS60113007A (en)

Cited By (122)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118204U (en) * 1990-03-16 1991-12-06
DE4129637A1 (en) * 1991-09-06 1993-03-11 Schaeffler Waelzlager Kg DEVICE FOR CHANGING THE SPRING FORCE OF A VALVE SPRING
EP0802306A1 (en) * 1996-04-19 1997-10-22 Toyota Jidosha Kabushiki Kaisha Valve system for engine
US10542974B2 (en) 2008-02-14 2020-01-28 Ethicon Llc Surgical instrument including a control system
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Publication number Priority date Publication date Assignee Title
JPH03118204U (en) * 1990-03-16 1991-12-06
DE4129637A1 (en) * 1991-09-06 1993-03-11 Schaeffler Waelzlager Kg DEVICE FOR CHANGING THE SPRING FORCE OF A VALVE SPRING
DE4129637C2 (en) * 1991-09-06 1998-04-09 Schaeffler Waelzlager Ohg Device for changing the spring force of a valve spring
WO1993005280A1 (en) * 1991-09-06 1993-03-18 Ina Wälzlager Schaeffler Kg Device for adjusting the force exerted by a valve spring
EP0802306A1 (en) * 1996-04-19 1997-10-22 Toyota Jidosha Kabushiki Kaisha Valve system for engine
US5743225A (en) * 1996-04-19 1998-04-28 Toyota Jidosha Kabushiki Kaisha Valve system for engine
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