IT1016177B - Perfezionamento nelle disposizioni di regolazione delle valvole per motori a combustione interna - Google Patents

Perfezionamento nelle disposizioni di regolazione delle valvole per motori a combustione interna

Info

Publication number
IT1016177B
IT1016177B IT51732/74A IT5173274A IT1016177B IT 1016177 B IT1016177 B IT 1016177B IT 51732/74 A IT51732/74 A IT 51732/74A IT 5173274 A IT5173274 A IT 5173274A IT 1016177 B IT1016177 B IT 1016177B
Authority
IT
Italy
Prior art keywords
valves
improvement
internal combustion
combustion engines
regulation provisions
Prior art date
Application number
IT51732/74A
Other languages
English (en)
Original Assignee
Daimler Benz Ag
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 DE19732335695 external-priority patent/DE2335695A1/de
Application filed by Daimler Benz Ag filed Critical Daimler Benz Ag
Application granted granted Critical
Publication of IT1016177B publication Critical patent/IT1016177B/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
    • F01L1/042—Cam discs
    • 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
    • F01L31/00—Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
    • F01L31/08—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
    • F01L31/14—Valve adjustment by links or guide rods, e.g. in valve-gears with eccentric 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
    • 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
    • F01L2013/0068—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 with an oscillating cam acting on the valve of the "BMW-Valvetronic" type
    • 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
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
IT51732/74A 1973-07-13 1974-06-25 Perfezionamento nelle disposizioni di regolazione delle valvole per motori a combustione interna IT1016177B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732335695 DE2335695A1 (de) 1973-07-13 1973-07-13 Ventilverstellung fuer brennkraftmaschinen
DE2363891A DE2363891A1 (de) 1973-07-13 1973-12-21 Ventilverstellung fuer brennkraftmaschinen

Publications (1)

Publication Number Publication Date
IT1016177B true IT1016177B (it) 1977-05-30

Family

ID=25765483

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51732/74A IT1016177B (it) 1973-07-13 1974-06-25 Perfezionamento nelle disposizioni di regolazione delle valvole per motori a combustione interna

Country Status (5)

Country Link
US (1) US3911879A (it)
DE (1) DE2363891A1 (it)
FR (1) FR2237058B1 (it)
GB (1) GB1437673A (it)
IT (1) IT1016177B (it)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205634A (en) * 1978-02-17 1980-06-03 Tourtelot Edward M Jr Variable valve timing mechanism
US4182290A (en) * 1978-06-22 1980-01-08 Pohle William A Variable ratio rocker arm
US4261307A (en) * 1979-09-06 1981-04-14 Sidney Oldberg Variable valve timing control for internal combustion engines
FR2472078A1 (fr) * 1979-12-21 1981-06-26 Baguena Michel Distribution variable pour moteur a quatre temps
FR2484016A1 (fr) * 1980-06-09 1981-12-11 Renault Dispositif de distribution variable par modification de levee de soupape pour machines a capsulisme
DE3022188A1 (de) * 1980-06-13 1981-12-24 Teodoro 4300 Essen Holtmann Ventilsteuerungseinrichtung eines verbrennungsmotors
DE3115422A1 (de) * 1981-04-16 1982-11-11 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Hydraulische einrichtung zum betaetigen von gaswechselventilen
JPS5896134A (ja) * 1981-12-03 1983-06-08 Honda Motor Co Ltd 内燃機関の弁駆動制御装置
JPS5896135A (ja) * 1981-12-03 1983-06-08 Honda Motor Co Ltd 内燃機関の弁駆動制御装置
US4457268A (en) * 1982-01-25 1984-07-03 Jones Darrell L Valve position control device
US4502426A (en) * 1982-05-17 1985-03-05 Skelley James H Variable valve lift and timing mechanism
DE3406100A1 (de) * 1984-02-18 1985-08-22 Willi 7171 Michelfeld Roth Drehzahlabhaengige verstellung der ventilsteuerzeiten bei verbrennungsmotoren
AU593665B2 (en) * 1986-05-21 1990-02-15 Bennett Automotive Technology Pty. Ltd. Engines for use with gaseous fuels
KR880701317A (ko) * 1986-05-21 1988-07-26 원본미기재 기체 연료를 사용하는 기관
GB8723256D0 (en) * 1987-10-03 1987-11-04 Jaguar Cars Valve mechanisms
IT1220275B (it) * 1988-01-19 1990-06-15 Franco Storchi Complesso di elementi per la fasatura variabile delle valvole di un motore,in particolare di un motore a combustione interna
US4848180A (en) * 1988-09-06 1989-07-18 Henley Manufacturing Corporation Low-friction, boat-type rocker arm
US5165370A (en) * 1991-04-25 1992-11-24 Gerald Beaumont Mechanism for controlling valve timing
US5463987A (en) * 1994-07-13 1995-11-07 Cukovich; Mark S. Variable valve timing mechanism
DE19854382B4 (de) 1998-11-25 2009-01-02 Alstom Verfahren und Vorrichtung zur Zerstäubung flüssigen Brennstoffs für eine Feuerungsanlage
CN1391640A (zh) * 1999-10-15 2003-01-15 维Ii控股有限公司 用于提升阀的导板
AT411090B (de) 2000-12-12 2003-09-25 Jenbacher Ag Vollvariabler hydraulischer ventilantrieb
HK1033238A2 (en) * 2001-01-20 2001-08-03 Foo Wah Lau A control device for an air valve of an internal combustion engine
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
US6619250B2 (en) 2001-03-16 2003-09-16 Frank A. Folino Desmodromic valve actuation system
GB0200935D0 (en) * 2002-01-16 2002-03-06 Lotus Car Valve operating mechanisms
DE10215281A1 (de) * 2002-04-06 2003-10-16 Willi Roth Vorrichtung zum stufenlosen Variieren der Ventilerhebung in Verbrennungsmotoren
DE102004035005A1 (de) * 2004-07-20 2006-02-16 Bayerische Motoren Werke Ag Ventiltrieb einer Brennkraftmaschine
EP1712747A1 (de) * 2005-04-17 2006-10-18 Uwe Eisenbeis Ventiltrieb mit variablem Ventilhub und Steuerzeiten für hochdrehende Verbrennungsmotoren
US8033261B1 (en) 2008-11-03 2011-10-11 Robbins Warren H Valve actuation system and related methods
DE102010018712B4 (de) * 2010-04-29 2022-01-20 Audi Ag Ventiltrieb für ein Gaswechselventil mit Wälzkontakt zwischen Nockenfolger und Ventilschaft

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1126843A (en) * 1913-10-06 1915-02-02 Henry G O'reilly Valve mechanism.
US2401480A (en) * 1942-01-26 1946-06-04 Aero Engines Ltd Valve actuation
US2696201A (en) * 1950-09-19 1954-12-07 Daimler Benz Ag Valve control mechanism of internalcombustion engines
US2851023A (en) * 1956-04-26 1958-09-09 Leroy A Durkan Variable valve timing
US2954017A (en) * 1958-03-29 1960-09-27 Porsche Kg Valve control arrangement for internal combustion engines
US2997991A (en) * 1960-02-08 1961-08-29 Henry A Roan Variable valve timing mechanism for internal combustion engines
US3261338A (en) * 1964-07-13 1966-07-19 Automobile Racing Club Of Okla Valve timing mechanism
US3413965A (en) * 1967-07-13 1968-12-03 Ford Motor Co Mechanism for varying the operation of a reciprocating member
GB1299673A (en) * 1969-02-13 1972-12-13 Fiat Spa Improvements relating to valve actuating mechanisms for internal combustion engines

Also Published As

Publication number Publication date
FR2237058A1 (it) 1975-02-07
GB1437673A (it) 1976-06-03
DE2363891A1 (de) 1975-06-26
FR2237058B1 (it) 1977-03-18
US3911879A (en) 1975-10-14

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