JPS55107011A - Valve driver for internal combustion engine - Google Patents

Valve driver for internal combustion engine

Info

Publication number
JPS55107011A
JPS55107011A JP1390479A JP1390479A JPS55107011A JP S55107011 A JPS55107011 A JP S55107011A JP 1390479 A JP1390479 A JP 1390479A JP 1390479 A JP1390479 A JP 1390479A JP S55107011 A JPS55107011 A JP S55107011A
Authority
JP
Japan
Prior art keywords
cylinder
exhaust valve
engine
gas
cam shaft
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
JP1390479A
Other languages
Japanese (ja)
Other versions
JPS6147295B2 (en
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 JP1390479A priority Critical patent/JPS55107011A/en
Publication of JPS55107011A publication Critical patent/JPS55107011A/en
Publication of JPS6147295B2 publication Critical patent/JPS6147295B2/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
    • F01L13/0042—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 with cams being profiled in axial and radial direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE:To prevent the blow-back and temperature fall of gas remaining in a cylinder and effectively decrease NOx without deteriorating the running performance of an engine, by causing the closing period of an exhaust valve and the opening period of an intake valve to correspond to each other and controlling the relation between both the periods to vary depending on the running condition of the engine. CONSTITUTION:A tridimensional cam 10 for an exhaust valve is mounted on a cam shaft 2 installed over a cylinder head 1. A piston 7 is coupled to the end of the cam shaft. Oil pressure, which rises in connection with the degree of opening of an accelerator pedal, acts on the piston 7 to displace the cam shaft 2 to advance the closing period of the exhaust valve 11. An intake valve is controlled by the same mechanism so that the opening period of the intake valve is delayed depending on the closing period of the exhaust valve 11. As a result, gas remaining in a cylinder is regulated depending on a running condition so that most of the gas is enclosed in the cylinder and the temperature of the gas in the cylinder is raised. Thus, combustion is improved and NOx is effectively decreased without deteriorating the running performance of an engine.
JP1390479A 1979-02-09 1979-02-09 Valve driver for internal combustion engine Granted JPS55107011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1390479A JPS55107011A (en) 1979-02-09 1979-02-09 Valve driver for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1390479A JPS55107011A (en) 1979-02-09 1979-02-09 Valve driver for internal combustion engine

Publications (2)

Publication Number Publication Date
JPS55107011A true JPS55107011A (en) 1980-08-16
JPS6147295B2 JPS6147295B2 (en) 1986-10-18

Family

ID=11846154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1390479A Granted JPS55107011A (en) 1979-02-09 1979-02-09 Valve driver for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS55107011A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62247107A (en) * 1986-04-17 1987-10-28 Mazda Motor Corp Valve driving controller of diesel engine
JP2002242714A (en) * 2001-02-14 2002-08-28 Mazda Motor Corp 4-cycle engine for automobile
JP2002242709A (en) * 2001-02-14 2002-08-28 Mazda Motor Corp 4-cycle engine for automobile
JP2003120348A (en) * 2001-10-12 2003-04-23 Denso Corp Valve timing control device for internal combustion engine
KR100440024B1 (en) * 2001-11-28 2004-07-14 현대자동차주식회사 Oil leak preventing structure
US6886532B2 (en) 2001-03-13 2005-05-03 Nissan Motor Co., Ltd. Intake system of internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52131021A (en) * 1976-04-28 1977-11-02 Suzuki Motor Co Ltd Valve timing changing device in 4-cycle engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52131021A (en) * 1976-04-28 1977-11-02 Suzuki Motor Co Ltd Valve timing changing device in 4-cycle engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62247107A (en) * 1986-04-17 1987-10-28 Mazda Motor Corp Valve driving controller of diesel engine
JP2002242714A (en) * 2001-02-14 2002-08-28 Mazda Motor Corp 4-cycle engine for automobile
JP2002242709A (en) * 2001-02-14 2002-08-28 Mazda Motor Corp 4-cycle engine for automobile
US6886532B2 (en) 2001-03-13 2005-05-03 Nissan Motor Co., Ltd. Intake system of internal combustion engine
JP2003120348A (en) * 2001-10-12 2003-04-23 Denso Corp Valve timing control device for internal combustion engine
KR100440024B1 (en) * 2001-11-28 2004-07-14 현대자동차주식회사 Oil leak preventing structure

Also Published As

Publication number Publication date
JPS6147295B2 (en) 1986-10-18

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