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IT1190034B - Testa a quattro valvole a comando desmodromico per motori a scoppio - Google Patents

Testa a quattro valvole a comando desmodromico per motori a scoppio

Info

Publication number
IT1190034B
IT1190034B IT8620685A IT2068586A IT1190034B IT 1190034 B IT1190034 B IT 1190034B IT 8620685 A IT8620685 A IT 8620685A IT 2068586 A IT2068586 A IT 2068586A IT 1190034 B IT1190034 B IT 1190034B
Authority
IT
Italy
Prior art keywords
head
control valves
combustion engines
desmodromic control
desmodromic
Prior art date
Application number
IT8620685A
Other languages
English (en)
Other versions
IT8620685A0 (it
Inventor
Massimo Bordi
Gianluigi Mengoli
Original Assignee
Ducati Meccanica 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 Ducati Meccanica Spa filed Critical Ducati Meccanica Spa
Priority to IT8620685A priority Critical patent/IT1190034B/it
Publication of IT8620685A0 publication Critical patent/IT8620685A0/it
Priority to EP87106875A priority patent/EP0250797A3/en
Priority to US07/052,558 priority patent/US4754728A/en
Priority to JP62133230A priority patent/JPS6368707A/ja
Application granted granted Critical
Publication of IT1190034B publication Critical patent/IT1190034B/it

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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • 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
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
IT8620685A 1986-06-05 1986-06-05 Testa a quattro valvole a comando desmodromico per motori a scoppio IT1190034B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT8620685A IT1190034B (it) 1986-06-05 1986-06-05 Testa a quattro valvole a comando desmodromico per motori a scoppio
EP87106875A EP0250797A3 (en) 1986-06-05 1987-05-12 Four-valve cylinder head of desmodromic operation, for internal combustion engines
US07/052,558 US4754728A (en) 1986-06-05 1987-05-19 Four-valve cylinder head of desmodromic operation, for internal combustion engines
JP62133230A JPS6368707A (ja) 1986-06-05 1987-05-28 内燃機関用デスモドロミツク動作４弁シリンダヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8620685A IT1190034B (it) 1986-06-05 1986-06-05 Testa a quattro valvole a comando desmodromico per motori a scoppio

Publications (2)

Publication Number Publication Date
IT8620685A0 IT8620685A0 (it) 1986-06-05
IT1190034B true IT1190034B (it) 1988-02-10

Family

ID=11170550

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8620685A IT1190034B (it) 1986-06-05 1986-06-05 Testa a quattro valvole a comando desmodromico per motori a scoppio

Country Status (4)

Country Link
US (1) US4754728A (it)
EP (1) EP0250797A3 (it)
JP (1) JPS6368707A (it)
IT (1) IT1190034B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818636A1 (de) * 1988-06-01 1989-12-07 Bayerische Motoren Werke Ag Hubkolben-brennkraftmaschine mit einem zwei obenliegende steuerwellen umfassenden zylinderkopf
JP2638974B2 (ja) * 1988-08-16 1997-08-06 日産自動車株式会社 内燃機関の弁強制開閉装置
JP2638975B2 (ja) * 1988-08-16 1997-08-06 日産自動車株式会社 内燃機関の弁強制開閉装置
JP2546435B2 (ja) * 1990-11-05 1996-10-23 三菱自動車工業株式会社 内燃機関のシリンダヘッド
EP0744530A1 (de) * 1995-05-22 1996-11-27 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Zylinderkopf
DE19701874C5 (de) * 1997-01-21 2006-06-22 Daimlerchrysler Ag Nockenwellenlageranordnung im Zylinderkopf einer Brennkraftmaschine
US6053134A (en) * 1998-08-28 2000-04-25 Linebarger; Terry Glyn Cam operating system
US6487997B2 (en) 2001-04-03 2002-12-03 Chris Palumbo Springless poppet valve system
DE60104193T2 (de) * 2001-07-19 2005-07-21 Ducati Motor Holding S.P.A. Ein Satz Zylinderköpfe mit desmodromischer Ventilbetätigung für Brennkraftmaschinen
DE502005002015D1 (de) * 2004-03-26 2008-01-03 Stefan Battlogg Desmodromischer Ventiltrieb
US7421988B2 (en) * 2004-08-03 2008-09-09 Stefan Battlogg Positive-guidance apparatus for conversion of a rotary movement of a drive to a reciprocating movement of a part
EP1624160A2 (de) 2004-08-03 2006-02-08 Stefan Battlogg Zwangführungsvorrichtung zur Umwandlung der Drehbewegung eines Antriebs in eine hin- und hergehende Bewegung eines Teiles
US8033261B1 (en) 2008-11-03 2011-10-11 Robbins Warren H Valve actuation system and related methods
WO2014030126A1 (en) 2012-08-22 2014-02-27 Ajp Motos, S.A. Distribution system for 4-stroke engines, operation method and use thereof
US20170370218A1 (en) * 2016-06-28 2017-12-28 Exoes Piston Type Axial Expander
CN107559047A (zh) * 2016-06-30 2018-01-09 埃克索埃斯公司 活塞型轴向膨胀器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US14228A (en) * 1856-02-12 Botaby planeb fob fellies
US1544784A (en) * 1924-02-20 1925-07-07 John G P Thomas Valve-operating mechanism for internal-combustion engines
US2751895A (en) * 1952-05-20 1956-06-26 Daimler Benz Ag Valve control for internal combustion engines
US3098472A (en) * 1959-11-26 1963-07-23 Porsche Kg Valve control mechanism for internal combustion engine
US3430614A (en) * 1967-07-07 1969-03-04 Eaton Yale & Towne Desmodromic drive arrangement
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
JPS5965908U (ja) * 1982-10-26 1984-05-02 本田技研工業株式会社 内燃機関の動弁装置
JPS6030407A (ja) * 1983-07-29 1985-02-16 Honda Motor Co Ltd 内燃機関のバルブ強制開閉装置

Also Published As

Publication number Publication date
JPS6368707A (ja) 1988-03-28
EP0250797A3 (en) 1988-10-05
IT8620685A0 (it) 1986-06-05
US4754728A (en) 1988-07-05
EP0250797A2 (en) 1988-01-07

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