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WO2009011145A1 - System for varying total valve opening angle by variable lift - Google Patents

System for varying total valve opening angle by variable lift Download PDF

Info

Publication number
WO2009011145A1
WO2009011145A1 PCT/JP2008/052680 JP2008052680W WO2009011145A1 WO 2009011145 A1 WO2009011145 A1 WO 2009011145A1 JP 2008052680 W JP2008052680 W JP 2008052680W WO 2009011145 A1 WO2009011145 A1 WO 2009011145A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
timing
lift mechanism
variable
opening angle
Prior art date
Application number
PCT/JP2008/052680
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuo Ooyama
Original Assignee
Joho Corporation
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
Priority claimed from PCT/JP2007/064035 external-priority patent/WO2008020519A1/en
Application filed by Joho Corporation filed Critical Joho Corporation
Priority to JP2009523555A priority Critical patent/JP5205570B2/en
Publication of WO2009011145A1 publication Critical patent/WO2009011145A1/en

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
    • F01L13/0063—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • F01L1/38—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for engines with other than four-stroke cycle, e.g. with two-stroke cycle
    • 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
    • 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
    • F01L13/0021—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 by modification of rocker arm ratio
    • F01L13/0026—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 by modification of rocker arm ratio by means of an eccentric
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
    • F01L3/085—Valve cages
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

In an internal combustion engine having a conventional continuously variable valve lift mechanism, a pumping loss is not reduced even if a throttle valve is replaced and the engine separately requires a variable valve timing mechanism for changing the phase of a camshaft to produce an idling state. In a system of the invention for varying the total valve opening angle, a fitting part for stopping gas flow even if a valve is slightly lifted is provided at the opening of a port of a valve having a continuous variable valve lift mechanism. The system can also be used for displacement type pressure engines. A pumping loss is reduced by synergistic effects such as overlap of the valve being eliminated, the amount of a variation in valve timing being increased, and the valve being quickly closed due to existence of the fitting part. Since the continuous variable valve lift mechanism-cum-variable timing mechanism of a subordinate concept can controllably keep valve opening timing at the top dead center by a single control rod, the throttle valve can be easily replaced.
PCT/JP2008/052680 2007-07-16 2008-02-18 System for varying total valve opening angle by variable lift WO2009011145A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009523555A JP5205570B2 (en) 2007-07-16 2008-02-18 Variable valve opening angle variable system with variable lift mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/064035 WO2008020519A1 (en) 2006-08-18 2007-07-16 Exhaust catalyst control for six-cycle engine
JPPCT/JP2007/064035 2007-07-16

Publications (1)

Publication Number Publication Date
WO2009011145A1 true WO2009011145A1 (en) 2009-01-22

Family

ID=40262183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052680 WO2009011145A1 (en) 2007-07-16 2008-02-18 System for varying total valve opening angle by variable lift

Country Status (1)

Country Link
WO (1) WO2009011145A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011256817A (en) * 2010-06-11 2011-12-22 Nissan Motor Co Ltd Variable valve device for internal combustion engine
WO2012035285A1 (en) * 2010-09-16 2012-03-22 Anthony Edgar Blackburn Six stroke 'blackburn cycle' engine
WO2012120529A1 (en) * 2011-03-07 2012-09-13 Tvs Motor Company Limited Internal combustion engine
CN102953777A (en) * 2012-10-24 2013-03-06 上海交通大学 Inlet pressure control type camshaft device
CN102953780A (en) * 2012-10-24 2013-03-06 上海交通大学 Exhaust pressure control type camshaft device
AT512877A1 (en) * 2012-04-26 2013-11-15 Pges Guenther Herdin Tech Buero Gmbh Valve control mechanism
DE102015203380A1 (en) * 2015-02-25 2016-08-25 Bayerische Motoren Werke Aktiengesellschaft Hubvariabler valve drive for a cylinder head of an internal combustion engine
CN107387189A (en) * 2017-08-31 2017-11-24 吉林大学 A kind of variable valve actuation

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147304U (en) * 1980-04-07 1981-11-06
JPS56150807U (en) * 1980-04-11 1981-11-12
JPS57145710U (en) * 1981-03-10 1982-09-13
JPS62121810A (en) * 1985-07-31 1987-06-03 Honda Motor Co Ltd Tappet valve device for internal combustion engine
JPH02123215A (en) * 1988-10-31 1990-05-10 Suzuki Motor Co Ltd Valve timing varying device for four-cycle engine
JP2000213318A (en) * 1999-01-26 2000-08-02 Unisia Jecs Corp Variable valve train for internal combustion engines
WO2004081351A1 (en) * 2003-03-11 2004-09-23 Yamaha Hatsudoki Kabushiki Kaisha Variable valve mechanism for internal combustion engine
WO2006025569A1 (en) * 2004-08-31 2006-03-09 Toyota Jidosha Kabushiki Kaisha Variable valve gear
JP2006316762A (en) * 2005-05-16 2006-11-24 Toyota Motor Corp Valve operating device for internal combustion engine
JP2007016766A (en) * 2005-06-06 2007-01-25 Toyota Motor Corp Variable valve gear
JP2007146733A (en) * 2005-11-28 2007-06-14 Kyowa Metal Work Co Ltd Variable valve operating device for internal combustion engine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147304U (en) * 1980-04-07 1981-11-06
JPS56150807U (en) * 1980-04-11 1981-11-12
JPS57145710U (en) * 1981-03-10 1982-09-13
JPS62121810A (en) * 1985-07-31 1987-06-03 Honda Motor Co Ltd Tappet valve device for internal combustion engine
JPH02123215A (en) * 1988-10-31 1990-05-10 Suzuki Motor Co Ltd Valve timing varying device for four-cycle engine
JP2000213318A (en) * 1999-01-26 2000-08-02 Unisia Jecs Corp Variable valve train for internal combustion engines
WO2004081351A1 (en) * 2003-03-11 2004-09-23 Yamaha Hatsudoki Kabushiki Kaisha Variable valve mechanism for internal combustion engine
WO2006025569A1 (en) * 2004-08-31 2006-03-09 Toyota Jidosha Kabushiki Kaisha Variable valve gear
JP2006316762A (en) * 2005-05-16 2006-11-24 Toyota Motor Corp Valve operating device for internal combustion engine
JP2007016766A (en) * 2005-06-06 2007-01-25 Toyota Motor Corp Variable valve gear
JP2007146733A (en) * 2005-11-28 2007-06-14 Kyowa Metal Work Co Ltd Variable valve operating device for internal combustion engine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011256817A (en) * 2010-06-11 2011-12-22 Nissan Motor Co Ltd Variable valve device for internal combustion engine
WO2012035285A1 (en) * 2010-09-16 2012-03-22 Anthony Edgar Blackburn Six stroke 'blackburn cycle' engine
WO2012120529A1 (en) * 2011-03-07 2012-09-13 Tvs Motor Company Limited Internal combustion engine
AT512877A1 (en) * 2012-04-26 2013-11-15 Pges Guenther Herdin Tech Buero Gmbh Valve control mechanism
AT512877B1 (en) * 2012-04-26 2014-02-15 Pges Guenther Herdin Tech Buero Gmbh Valve control mechanism
CN102953777A (en) * 2012-10-24 2013-03-06 上海交通大学 Inlet pressure control type camshaft device
CN102953780A (en) * 2012-10-24 2013-03-06 上海交通大学 Exhaust pressure control type camshaft device
DE102015203380A1 (en) * 2015-02-25 2016-08-25 Bayerische Motoren Werke Aktiengesellschaft Hubvariabler valve drive for a cylinder head of an internal combustion engine
CN107387189A (en) * 2017-08-31 2017-11-24 吉林大学 A kind of variable valve actuation
CN107387189B (en) * 2017-08-31 2023-06-23 吉林大学 Variable valve driving mechanism

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