WO2008149316A3 - Desmodromic variable valve actuation - Google Patents

Desmodromic variable valve actuation Download PDF

Info

Publication number
WO2008149316A3
WO2008149316A3 PCT/IB2008/052228 IB2008052228W WO2008149316A3 WO 2008149316 A3 WO2008149316 A3 WO 2008149316A3 IB 2008052228 W IB2008052228 W IB 2008052228W WO 2008149316 A3 WO2008149316 A3 WO 2008149316A3
Authority
WO
WIPO (PCT)
Prior art keywords
desmodromic
variable valve
valve actuation
valve
variable
Prior art date
Application number
PCT/IB2008/052228
Other languages
French (fr)
Other versions
WO2008149316A2 (en
Inventor
Manousos Pattakos
John Pattakos
Emmanouel Pattakos
Original Assignee
Manousos Pattakos
John Pattakos
Emmanouel Pattakos
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 US11/759,392 external-priority patent/US7765965B2/en
Priority claimed from US11/764,970 external-priority patent/US20080314342A1/en
Application filed by Manousos Pattakos, John Pattakos, Emmanouel Pattakos filed Critical Manousos Pattakos
Priority to US12/663,275 priority Critical patent/US8201531B2/en
Priority to AT08763225T priority patent/ATE510999T1/en
Priority to EP08763225A priority patent/EP2198129B1/en
Publication of WO2008149316A2 publication Critical patent/WO2008149316A2/en
Publication of WO2008149316A3 publication Critical patent/WO2008149316A3/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
    • 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
    • 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
    • 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

Abstract

A mechanical desmodromic fully variable valve actuation system capable for racing revs. Valve lift and valve duration continuously variable from a maximum to zero. Independently variable valve duration and valve lift.
PCT/IB2008/052228 2007-06-07 2008-06-06 Desmodromic variable valve actuation WO2008149316A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/663,275 US8201531B2 (en) 2007-06-07 2008-06-06 Desmodromic variable valve actuation
AT08763225T ATE510999T1 (en) 2007-06-07 2008-06-06 DESMODROMIC VARIABLE VALVE ACTUATION
EP08763225A EP2198129B1 (en) 2007-06-07 2008-06-06 Desmodromic variable valve actuation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/759,392 US7765965B2 (en) 2007-06-07 2007-06-07 Fully variable valve actuation
US11/759,392 2007-06-07
US11/764,970 US20080314342A1 (en) 2007-06-19 2007-06-19 Desmodromic variable valve actuation
US11/764,970 2007-06-19

Publications (2)

Publication Number Publication Date
WO2008149316A2 WO2008149316A2 (en) 2008-12-11
WO2008149316A3 true WO2008149316A3 (en) 2009-03-12

Family

ID=39791740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/052228 WO2008149316A2 (en) 2007-06-07 2008-06-06 Desmodromic variable valve actuation

Country Status (3)

Country Link
EP (1) EP2198129B1 (en)
AT (1) ATE510999T1 (en)
WO (1) WO2008149316A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201307317D0 (en) 2013-04-23 2013-05-29 Camcon Auto Ltd Valve System and Methods of Operation Thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR557079A (en) * 1922-01-25 1923-08-02 Combustion engine
DE3022188A1 (en) * 1980-06-13 1981-12-24 Teodoro 4300 Essen Holtmann VALVE CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
EP0416794A1 (en) * 1989-09-08 1991-03-13 Jaguar Cars Limited Valve mechanisms
EP0773352A1 (en) * 1995-11-10 1997-05-14 Pedro Jose Campo Garraza Mechanical actuator with reciprocating motor
WO2002053881A1 (en) * 2001-01-04 2002-07-11 Fev Motorentechnik Gmbh Fully variable mechanical valve gear for a piston internal combustion engine
WO2003040526A1 (en) * 2001-11-06 2003-05-15 Thyssenkrupp Automotive Ag Variable lift valve controller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR557079A (en) * 1922-01-25 1923-08-02 Combustion engine
DE3022188A1 (en) * 1980-06-13 1981-12-24 Teodoro 4300 Essen Holtmann VALVE CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
EP0416794A1 (en) * 1989-09-08 1991-03-13 Jaguar Cars Limited Valve mechanisms
EP0773352A1 (en) * 1995-11-10 1997-05-14 Pedro Jose Campo Garraza Mechanical actuator with reciprocating motor
WO2002053881A1 (en) * 2001-01-04 2002-07-11 Fev Motorentechnik Gmbh Fully variable mechanical valve gear for a piston internal combustion engine
WO2003040526A1 (en) * 2001-11-06 2003-05-15 Thyssenkrupp Automotive Ag Variable lift valve controller

Also Published As

Publication number Publication date
EP2198129A2 (en) 2010-06-23
EP2198129B1 (en) 2011-05-25
ATE510999T1 (en) 2011-06-15
WO2008149316A2 (en) 2008-12-11

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