DE3809953C1 - - Google Patents

Info

Publication number
DE3809953C1
DE3809953C1 DE3809953A DE3809953A DE3809953C1 DE 3809953 C1 DE3809953 C1 DE 3809953C1 DE 3809953 A DE3809953 A DE 3809953A DE 3809953 A DE3809953 A DE 3809953A DE 3809953 C1 DE3809953 C1 DE 3809953C1
Authority
DE
Germany
Prior art keywords
valve
piston
master piston
axis
hydraulic
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.)
Expired
Application number
DE3809953A
Other languages
German (de)
English (en)
Inventor
Jurij 8034 Germering De Gartner
Anton Schollweck
Peter 8000 Muenchen De Langen
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE3809953A priority Critical patent/DE3809953C1/de
Priority to DE8989104989T priority patent/DE58900184D1/de
Priority to ES89104989T priority patent/ES2024058B3/es
Priority to EP89104989A priority patent/EP0334272B1/de
Application granted granted Critical
Publication of DE3809953C1 publication Critical patent/DE3809953C1/de
Expired 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34446—Fluid accumulators for the feeding circuit

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)
DE3809953A 1988-03-24 1988-03-24 Expired DE3809953C1 (es)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE3809953A DE3809953C1 (es) 1988-03-24 1988-03-24
DE8989104989T DE58900184D1 (de) 1988-03-24 1989-03-21 Hydraulische ventiloeffnungseinheit im zylinderkopf einer brennkraftmaschine.
ES89104989T ES2024058B3 (es) 1988-03-24 1989-03-21 Unidad de abertura de valvula hidraulica en la cabeza de cilindro de una maquina de combustible
EP89104989A EP0334272B1 (de) 1988-03-24 1989-03-21 Hydraulische Ventilöffnungseinheit im Zylinderkopf einer Brennkraftmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3809953A DE3809953C1 (es) 1988-03-24 1988-03-24

Publications (1)

Publication Number Publication Date
DE3809953C1 true DE3809953C1 (es) 1989-08-24

Family

ID=6350591

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3809953A Expired DE3809953C1 (es) 1988-03-24 1988-03-24
DE8989104989T Expired - Lifetime DE58900184D1 (de) 1988-03-24 1989-03-21 Hydraulische ventiloeffnungseinheit im zylinderkopf einer brennkraftmaschine.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8989104989T Expired - Lifetime DE58900184D1 (de) 1988-03-24 1989-03-21 Hydraulische ventiloeffnungseinheit im zylinderkopf einer brennkraftmaschine.

Country Status (3)

Country Link
EP (1) EP0334272B1 (es)
DE (2) DE3809953C1 (es)
ES (1) ES2024058B3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127375A (en) * 1991-04-04 1992-07-07 Ford Motor Company Hydraulic valve control system for internal combustion engines
ATE357582T1 (de) 2004-12-23 2007-04-15 Fiat Ricerche Brennkraftmaschine mit hydraulischen variablen ventilen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840445A1 (de) * 1978-09-16 1980-04-17 Maschf Augsburg Nuernberg Ag Hydraulische einrichtung zum betaetigen von gaswechselventilen
DE3621402A1 (de) * 1986-06-26 1988-01-14 Kloeckner Humboldt Deutz Ag Hydraulisch betaetigter stoessel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH243908A (de) * 1944-11-27 1946-08-15 Schweizerische Lokomotiv Flüssigkeitsbremse mit Rückschlagventil am Passivkolben von hydraulisch gesteuerten Ventilen von Brennkraftmaschinen.
DE3611476A1 (de) * 1986-04-05 1987-10-08 Irm Antriebstech Gmbh Verfahren zur betaetigung von ventilen zum ladungswechsel bei brennkraftmaschinen mit direkter hydraulischer uebertragung
DE3625664A1 (de) * 1986-07-29 1988-02-04 Bayerische Motoren Werke Ag Vorrichtung zur beeinflussung des von einem nocken gesteuerten ventilhubes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840445A1 (de) * 1978-09-16 1980-04-17 Maschf Augsburg Nuernberg Ag Hydraulische einrichtung zum betaetigen von gaswechselventilen
DE3621402A1 (de) * 1986-06-26 1988-01-14 Kloeckner Humboldt Deutz Ag Hydraulisch betaetigter stoessel

Also Published As

Publication number Publication date
ES2024058B3 (es) 1992-02-16
EP0334272A1 (de) 1989-09-27
DE58900184D1 (de) 1991-08-29
EP0334272B1 (de) 1991-07-24

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee