WO2002075121A1 - Desmodromic valve actuation system - Google Patents

Desmodromic valve actuation system Download PDF

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Publication number
WO2002075121A1
WO2002075121A1 PCT/US2002/008128 US0208128W WO02075121A1 WO 2002075121 A1 WO2002075121 A1 WO 2002075121A1 US 0208128 W US0208128 W US 0208128W WO 02075121 A1 WO02075121 A1 WO 02075121A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
cam
actuation system
desmodromic
operably connected
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.)
Ceased
Application number
PCT/US2002/008128
Other languages
English (en)
French (fr)
Inventor
Frank A. Folino
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP02723470A priority Critical patent/EP1379759A4/en
Priority to JP2002574494A priority patent/JP4065992B2/ja
Priority to CA002479292A priority patent/CA2479292A1/en
Publication of WO2002075121A1 publication Critical patent/WO2002075121A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • 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
    • F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift

Definitions

  • Figure 10 is a schematic representation of a further embodiment of the invention representing multiple valves per cylinder.
  • Alternate radial groove locations 14 shown in Fig. 3D are located in the backing plate 19 for the purpose of containing balls that will be used solely for stabilizing the plane of the rotating input cam. During rotation of the input cam these balls will merely reciprocate back and forth in these grooves 14. Also shown in the backing plate is the guideway 18 that guides the slide during its reciprocating motion.
  • Figures 6A and 6B are snapshots of the moment when both the intake and exhaust valves 50 and 60, respectively, are closed and their cam tracks 62 and 63 are at the Re radius as described in Fig. 4.
  • the camshaft clockwise rotation at this moment reflects the just completed closure of the exhaust valve and the imminent opening of the intake valve.
  • the valve stems are at point M, the closed position of the valve ports 68 intake and 69 exhaust.
  • Figs. 6C and 6D occur after 45 degrees of camshaft rotation and illustrates the maximum displacement Rmax of cam track 62 and full displacement of the slide at point B resulting in the complete opening of the intake valve 68 and maximum port opening since the circular drive disk slot is oriented at its angle ⁇ in accordance with Fig. 5C.

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)
PCT/US2002/008128 2001-03-16 2002-03-15 Desmodromic valve actuation system Ceased WO2002075121A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02723470A EP1379759A4 (en) 2001-03-16 2002-03-15 SYSTEM FOR ACTUATING THE VALVE DESMODROMIQUE
JP2002574494A JP4065992B2 (ja) 2001-03-16 2002-03-15 強制閉開式バルブ作動システム
CA002479292A CA2479292A1 (en) 2001-03-16 2002-03-15 Desmodromic valve actuation system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27688901P 2001-03-16 2001-03-16
US60/276,889 2001-03-16

Publications (1)

Publication Number Publication Date
WO2002075121A1 true WO2002075121A1 (en) 2002-09-26

Family

ID=23058504

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/008128 Ceased WO2002075121A1 (en) 2001-03-16 2002-03-15 Desmodromic valve actuation system

Country Status (6)

Country Link
US (1) US6619250B2 (enExample)
EP (1) EP1379759A4 (enExample)
JP (1) JP4065992B2 (enExample)
CN (1) CN1505729A (enExample)
CA (1) CA2479292A1 (enExample)
WO (1) WO2002075121A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2730196C1 (ru) * 2020-02-16 2020-08-19 Владимир Витальевич Килин Десмодромный кулачковый привод клапана газораспределительного механизма с регулировкой степени открытия клапана

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7082912B2 (en) * 2001-03-16 2006-08-01 Folino Frank A System and method for controlling engine valve lift and valve opening percentage
US6953014B2 (en) * 2001-03-16 2005-10-11 Folino Frank A Thermal compensating desmodromic valve actuation system
JP2005195059A (ja) * 2004-01-05 2005-07-21 Bando Chem Ind Ltd オートテンショナの制御装置
US6945206B1 (en) * 2004-04-09 2005-09-20 George Wayne Mobley Lobe-less cam for use in a springless poppet valve system
US8087393B2 (en) * 2007-05-18 2012-01-03 Arrow Leads, Inc. Zero float valve for internal combustion engine and method of operation thereof
DE102007045194B3 (de) * 2007-09-21 2009-02-19 Mtu Friedrichshafen Gmbh Verfahren zur Steuerung einer Brennkraftmaschine
US8033261B1 (en) 2008-11-03 2011-10-11 Robbins Warren H Valve actuation system and related methods
US9086171B2 (en) 2012-11-15 2015-07-21 Ken Meyer KUSC positive return valve action
KR20130138166A (ko) * 2013-11-29 2013-12-18 권인하 논스프링오버헤드크랭크샤프트시스템
CN112127962A (zh) * 2020-08-29 2020-12-25 白茹 无气门弹簧配气机构
JP7364705B2 (ja) * 2022-01-11 2023-10-18 本田技研工業株式会社 車両用空調装置
US20240167462A1 (en) * 2022-11-21 2024-05-23 The Regents Of The University Of Michigan Desmodromic mechanism and fluid pump
CN119102821B (zh) * 2024-08-26 2025-07-15 广州佳胜维创技术有限责任公司 一种配气机构及发动机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309339A (en) * 1919-07-08 George a
US2954017A (en) * 1958-03-29 1960-09-27 Porsche Kg Valve control arrangement for internal combustion engines

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US577589A (en) 1897-02-23 Valve for explosive-engines
US1561544A (en) 1924-01-14 1925-11-17 Buffalo Foundry & Machine Comp Valve-operating mechanism
US1679794A (en) 1925-11-09 1928-08-07 Herman A Schatz Valve gear
US2466550A (en) 1944-03-09 1949-04-05 Wright Aeronautical Corp Internal-combustion engine
US2641236A (en) 1944-10-11 1953-06-09 Whitworth & Co Means for actuating valves and other reciprocating parts
US2584055A (en) 1948-02-05 1952-01-29 Curtiss Wright Corp Sequence control mechanism
US2738748A (en) 1952-01-29 1956-03-20 May Pressenbau G M B H Fa Toggle lever operating arrangement for a press
US2823655A (en) 1956-12-13 1958-02-18 Ford Motor Co Valve timing mechanism
DE1105659B (de) * 1958-03-29 1961-04-27 Porsche Kg Ventilsteuerung fuer Brennkraft-maschinen
US3020018A (en) 1959-03-23 1962-02-06 Capitol Prod Corp Discharge valve
GB939895A (en) * 1962-05-17 1963-10-16 B M G Motorcycles Ltd Improvements in or relating to valve operating mechanism for internal combustion engines
US3317179A (en) 1963-08-09 1967-05-02 David F Wiseman & Sons Ltd Valve operating linkages
US3195528A (en) 1964-02-19 1965-07-20 Gen Motors Corp Poppet valve actuation
GB1167518A (en) 1965-12-21 1969-10-15 M A N Turbo G M B H Control Arrangement Comprising Two Hand Levers
GB1299673A (en) 1969-02-13 1972-12-13 Fiat Spa Improvements relating to valve actuating mechanisms for internal combustion engines
US3585974A (en) 1969-02-28 1971-06-22 Robert L Weber Valve actuating mechanism
US3684237A (en) 1970-05-04 1972-08-15 Westinghouse Electric Corp Variable force angle linkage
DE2363891A1 (de) 1973-07-13 1975-06-26 Daimler Benz Ag Ventilverstellung fuer brennkraftmaschinen
JPS50144925A (enExample) 1974-05-11 1975-11-21
LU74745A1 (enExample) 1976-04-12 1976-11-11
USRE30188E (en) 1976-06-01 1980-01-15 Valve train for internal combustion engine
US4061115A (en) 1976-06-01 1977-12-06 Predhome Jr Wilfred F Valve train for internal combustion engine
LU75372A1 (enExample) 1976-07-13 1977-02-25
FR2467971A1 (fr) * 1979-10-23 1981-04-30 Della Rocca Nicolas Moteur a explosion, plus particulierement dispositif de commande de l'ouverture et de la fermeture des soupapes et d'echappement
LU83279A1 (fr) 1981-04-03 1983-03-24 Wurth Paul Sa Installation de chargement d'un four a cuve
US4457268A (en) 1982-01-25 1984-07-03 Jones Darrell L Valve position control device
JPS58202318A (ja) * 1982-04-08 1983-11-25 ジエフリ−・ロバ−ト・パ−カ− デスモドロミツクバルブシステム
LU84890A1 (fr) 1983-06-29 1985-03-29 Wurth Paul Sa Mecanisme pour actionner un clapet de dosage
US4858573A (en) * 1984-11-13 1989-08-22 Bothwell Peter W Internal combustion engines
DE3511820A1 (de) 1985-03-30 1986-10-02 Robert Bosch Gmbh, 7000 Stuttgart Ventilsteuervorrichtung fuer eine hubkolben-brennkraftmaschine
DE3511819A1 (de) 1985-03-30 1986-10-09 Robert Bosch Gmbh, 7000 Stuttgart Ventilsteuervorrichtung
GB2183728A (en) * 1985-12-07 1987-06-10 Ford Motor Co Desmodromic valve system for i.c. engines
US4805568A (en) 1987-02-27 1989-02-21 Springer Joseph E Swing valve for internal combustion engines
GB8723256D0 (en) * 1987-10-03 1987-11-04 Jaguar Cars Valve mechanisms
DE3804333C2 (de) * 1988-02-12 1997-01-16 Josef Austermann Vorrichtung zur Veränderung des Steuerwinkels zwischen einem Maschinenteil und einer dieses betätigenden Antriebseinheit
DE3841839A1 (de) * 1988-12-13 1990-06-21 Peter Scherer Ventilanordnung
US4887564A (en) * 1989-04-10 1989-12-19 Edwards James R Valve actuation system for desmodromic internal combustion engines
GB8920361D0 (en) 1989-09-08 1989-10-25 Jaguar Cars Valve mechanisms
JPH03168307A (ja) * 1989-11-24 1991-07-22 Takuya Matsumoto エンジンのバルブ駆動装置
US5127375A (en) 1991-04-04 1992-07-07 Ford Motor Company Hydraulic valve control system for internal combustion engines
DE4436952A1 (de) 1994-10-15 1996-04-18 Schaeffler Waelzlager Kg Schaltbarer Stößel eines Ventiltriebs einer Brennkraftmaschine
US5732670A (en) * 1996-02-13 1998-03-31 Charles R. Mote, Sr. Geared rocker valve operation for internal combustion reciprocating piston engines
KR100195497B1 (ko) 1996-09-03 1999-06-15 류정열 흡기밸브의 리프트 가변장치
AUPO508497A0 (en) * 1997-02-13 1997-03-06 Armstrong, Mark Frederick Improvements in poppet valve actuation
US6311659B1 (en) 1999-06-01 2001-11-06 Delphi Technologies, Inc. Desmodromic cam driven variable valve timing mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309339A (en) * 1919-07-08 George a
US2954017A (en) * 1958-03-29 1960-09-27 Porsche Kg Valve control arrangement for internal combustion engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1379759A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2730196C1 (ru) * 2020-02-16 2020-08-19 Владимир Витальевич Килин Десмодромный кулачковый привод клапана газораспределительного механизма с регулировкой степени открытия клапана

Also Published As

Publication number Publication date
CA2479292A1 (en) 2002-09-26
CN1505729A (zh) 2004-06-16
US6619250B2 (en) 2003-09-16
EP1379759A1 (en) 2004-01-14
US20020166525A1 (en) 2002-11-14
JP2005505714A (ja) 2005-02-24
JP4065992B2 (ja) 2008-03-26
EP1379759A4 (en) 2005-01-12

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