EP0902170A3 - Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebs - Google Patents

Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebs Download PDF

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Publication number
EP0902170A3
EP0902170A3 EP98117110A EP98117110A EP0902170A3 EP 0902170 A3 EP0902170 A3 EP 0902170A3 EP 98117110 A EP98117110 A EP 98117110A EP 98117110 A EP98117110 A EP 98117110A EP 0902170 A3 EP0902170 A3 EP 0902170A3
Authority
EP
European Patent Office
Prior art keywords
chain
hydraulic piston
variator
outer hydraulic
lostrum
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.)
Granted
Application number
EP98117110A
Other languages
English (en)
French (fr)
Other versions
EP0902170B1 (de
EP0902170A2 (de
Inventor
Hans-Joachim Reichert
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Publication of EP0902170A2 publication Critical patent/EP0902170A2/de
Publication of EP0902170A3 publication Critical patent/EP0902170A3/de
Application granted granted Critical
Publication of EP0902170B1 publication Critical patent/EP0902170B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F01L1/348—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 by means acting on timing belts or chains

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Bei einer Vorrichtung 1 zum Spannen und Verstellen eines als Kette 2 ausgebildeten Umschlingungstriebs, durch den eine erste Nockenwelle 3 einer Brennkraftmaschine eine zweite Nockenwelle 3' antreibt, wobei die Kette 2 quer zu ihrer Bewegungsrichtung gespannt wird, indem der Abstand zwischen ihrem Lasttrum 4 und ihrem Lostrum 5 dadurch vergrößert wird, daß ein erster äußerer Hydraulikkolben 8 und ein zweiter innerer Hydraulikkolben 9 gegeneinander verschoben werden, und wobei die Kette 2 quer zu ihrer Bewegungsrichtung verstellt wird, indem ihr Lasttrum 4 dadurch verkürzt oder verlängert und ihr Lostrum 5 dadurch verlängert oder verkürzt wird, daß der erste äußere Hydraulikkolben 8 innerhalb eines feststehenden Gehäuses 6 verschoben wird, wird vorgeschlagen, daß eine schaltbare Rastvorrichtung 14 vorgesehen ist, welche den ersten äußeren Hydraulikkolben 8 innerhalb des Gehäuses 6 festlegt. Durch diesen Vorschlag wird das beim Starten der Brennkraftmaschine auftretende Klappern der Kette 2 wirkungsvoll vermieden.
EP98117110A 1997-09-15 1998-09-10 Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebs Expired - Lifetime EP0902170B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19740481A DE19740481A1 (de) 1997-09-15 1997-09-15 Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebs
DE19740481 1997-09-15

Publications (3)

Publication Number Publication Date
EP0902170A2 EP0902170A2 (de) 1999-03-17
EP0902170A3 true EP0902170A3 (de) 1999-11-17
EP0902170B1 EP0902170B1 (de) 2003-05-14

Family

ID=7842375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117110A Expired - Lifetime EP0902170B1 (de) 1997-09-15 1998-09-10 Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebs

Country Status (2)

Country Link
EP (1) EP0902170B1 (de)
DE (2) DE19740481A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8523720B2 (en) 2009-07-02 2013-09-03 Ford Global Technologies, Llc Chain tensioner
DE102014008019B4 (de) 2014-05-27 2021-06-10 Iwis Motorsysteme Gmbh & Co. Kg Spannvorrichtung für einen Nockenwellen-Nockenwellen-Kettentrieb
US10487921B2 (en) 2016-12-21 2019-11-26 Harley-Davidson Motor Company Group, LLC Engine with inboard cam drive tensioner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366415A (en) * 1993-03-12 1994-11-22 Eaton Corporation Hydraulic belt tensioner
DE4429071A1 (de) * 1994-08-17 1996-02-22 Porsche Ag Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebes
DE4433153A1 (de) * 1994-09-17 1996-03-21 Schaeffler Waelzlager Kg Spannvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4006910C1 (en) * 1990-03-06 1991-09-19 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De IC engine camshaft chain drive - has transverse chain tensioner and adjuster for slack and load chain sections shortening and lengthening respectively
DE19538401A1 (de) * 1995-06-10 1996-12-12 Schaeffler Waelzlager Kg Spannvorrichtung für einen Kettentrieb

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366415A (en) * 1993-03-12 1994-11-22 Eaton Corporation Hydraulic belt tensioner
DE4429071A1 (de) * 1994-08-17 1996-02-22 Porsche Ag Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebes
DE4433153A1 (de) * 1994-09-17 1996-03-21 Schaeffler Waelzlager Kg Spannvorrichtung

Also Published As

Publication number Publication date
EP0902170B1 (de) 2003-05-14
DE59808335D1 (de) 2003-06-18
EP0902170A2 (de) 1999-03-17
DE19740481A1 (de) 1999-03-18

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