FR2055094A5 - - Google Patents

Info

Publication number
FR2055094A5
FR2055094A5 FR7025950A FR7025950A FR2055094A5 FR 2055094 A5 FR2055094 A5 FR 2055094A5 FR 7025950 A FR7025950 A FR 7025950A FR 7025950 A FR7025950 A FR 7025950A FR 2055094 A5 FR2055094 A5 FR 2055094A5
Authority
FR
France
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.)
Expired
Application number
FR7025950A
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.)
Alfa Romeo SpA
Original Assignee
Alfa Romeo SpA
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 Alfa Romeo SpA filed Critical Alfa Romeo SpA
Application granted granted Critical
Publication of FR2055094A5 publication Critical patent/FR2055094A5/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
    • F02D13/0219—Variable control of intake and exhaust valves changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
    • 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
    • F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0223—Variable control of the intake valves only
    • F02D13/0234—Variable control of the intake valves only changing the valve timing only
    • F02D13/0238—Variable control of the intake valves only changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0261—Controlling the valve overlap
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
FR7025950A 1969-07-15 1970-07-15 Expired FR2055094A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1967369 1969-07-15

Publications (1)

Publication Number Publication Date
FR2055094A5 true FR2055094A5 (fr) 1971-05-07

Family

ID=11160279

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7025950A Expired FR2055094A5 (fr) 1969-07-15 1970-07-15

Country Status (3)

Country Link
DE (1) DE2032581A1 (fr)
FR (1) FR2055094A5 (fr)
GB (1) GB1303528A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420651A1 (fr) * 1978-03-24 1979-10-19 Alfa Romeo Spa Dispositif variateur de calage de la distribution pour moteur alternatif a combustion interne
WO2021105915A1 (fr) * 2019-11-27 2021-06-03 Piaggio & C. S.P.A Arbre à cames pourvu d'un dispositif de phasage pour moteur à combustion interne multicylindre à soupapes-champignons

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157364A (en) * 1984-02-07 1985-10-23 Alan John Graham I.C. engine variable valve timing device
DE3415861A1 (de) * 1984-04-28 1985-10-31 Pierburg Gmbh & Co Kg, 4040 Neuss Vorrichtung zur steuerung einer kopplungseinrichtung
DE3419963A1 (de) * 1984-05-29 1985-12-05 Peter 7442 Neuffen Schüle Viertakt-verbrennungsmotor mit einer einrichtung zum zurueckfuehren von gasen aus einer abgasleitung in den verbrennungsraum
GB2217812A (en) * 1988-04-30 1989-11-01 Ford Motor Co Variable camshaft phasing mechanism
US5507254A (en) * 1989-01-13 1996-04-16 Melchior; Jean F. Variable phase coupling for the transmission of alternating torques
FR2641832B1 (fr) * 1989-01-13 1991-04-12 Melchior Jean Accouplement pour la transmission de couples alternes
DE3922962A1 (de) * 1989-07-12 1991-01-17 Audi Ag Antriebsvorrichtung fuer eine nockenwelle einer brennkraftmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420651A1 (fr) * 1978-03-24 1979-10-19 Alfa Romeo Spa Dispositif variateur de calage de la distribution pour moteur alternatif a combustion interne
WO2021105915A1 (fr) * 2019-11-27 2021-06-03 Piaggio & C. S.P.A Arbre à cames pourvu d'un dispositif de phasage pour moteur à combustion interne multicylindre à soupapes-champignons
CN114729579A (zh) * 2019-11-27 2022-07-08 比亚乔公司 用于带提升气门的多缸内燃发动机的带定相装置的凸轮轴
CN114729579B (zh) * 2019-11-27 2024-03-12 比亚乔公司 用于带提升气门的多缸内燃发动机的带定相装置的凸轮轴
US11946393B2 (en) 2019-11-27 2024-04-02 Piaggio & C. S.P.A. Camshaft with phasing device for multi-cylinder internal combustion engine with poppet valves

Also Published As

Publication number Publication date
GB1303528A (fr) 1973-01-17
DE2032581A1 (de) 1971-02-04

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Legal Events

Date Code Title Description
ST Notification of lapse