EP1767748A3 - Force transmission device with a hydraulic valve adjusting device - Google Patents

Force transmission device with a hydraulic valve adjusting device Download PDF

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Publication number
EP1767748A3
EP1767748A3 EP06118699A EP06118699A EP1767748A3 EP 1767748 A3 EP1767748 A3 EP 1767748A3 EP 06118699 A EP06118699 A EP 06118699A EP 06118699 A EP06118699 A EP 06118699A EP 1767748 A3 EP1767748 A3 EP 1767748A3
Authority
EP
European Patent Office
Prior art keywords
transmission device
face
hydraulic fluid
valve
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.)
Withdrawn
Application number
EP06118699A
Other languages
German (de)
French (fr)
Other versions
EP1767748A2 (en
Inventor
Friedrich Hieronymus
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.)
IHO Holding GmbH and Co KG
Original Assignee
Schaeffler KG
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 Schaeffler KG filed Critical Schaeffler KG
Publication of EP1767748A2 publication Critical patent/EP1767748A2/en
Publication of EP1767748A3 publication Critical patent/EP1767748A3/en
Withdrawn legal-status Critical Current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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • F01L1/25—Hydraulic tappets between cam and valve stem
    • 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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • 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
    • F01L2307/00—Preventing the rotation of tappets

Abstract

Vorgeschlagen ist eine Kraftübertragungsvorrichtung (2) mit hydraulischer Ventilspielausgleichsvorrichtung (17) für einen Ventiltrieb einer Brennkraftmaschine. Die Kraftübertragungsvorrichtung (2) ist in einer zur Schwerkraft (4) geneigten Führung (5) längsbeweglich geführt und weist einen gegen Verdrehen um die Längsachse der Führung (5) gesicherten Boden (11) auf, der an einer Innenseite (23) eine ebene Stirnfläche (22) eines Ausgleichskolbens (18) der Ventilspielausgleichsvorrichtung (17) flächig abstützt und an der Innenseite (23) einen Hydraulikmittelübertritt (29) aufweist, der einen Hydraulikmittelvorraum (26) mit einem innerhalb des Ausgleichskolbens (18) verlaufenden Hydraulikmittelreservoir (20) verbindet, welches zur Versorgung eines Arbeitsraums (19) der Ventilspielausgleichsvorrichtung (17) dient. Dabei soll der Hydraulikmittelübertritt (29) stets gegenüber der geodätisch höchsten Stelle der Stirnfläche (22) des Ausgleichskolbens (18) verlaufen, wobei die Stirnfläche (22) und die Innenseite (23) des Bodens (11) außerhalb des Hydraulikmittelübertritts (29) hydraulisch dichtend zusammenwirken.

Figure imgaf001
Proposed is a power transmission device (2) with hydraulic valve clearance compensation device (17) for a valve train of an internal combustion engine. The power transmission device (2) is longitudinally movably guided in a guide (5) inclined to gravity (4) and has a bottom (11) secured against rotation about the longitudinal axis of the guide (5) and having a flat end face on an inner side (23) (22) of a compensating piston (18) of the valve lash adjuster (17) and supports on the inside (23) has a hydraulic means (29) connecting a Hydraulikmittelvorraum (26) with a within the balance piston (18) extending hydraulic fluid reservoir (20), which serves to supply a working space (19) of the valve lash adjuster (17). In this case, the hydraulic fluid transfer (29) always with respect to the geodetically highest point of the end face (22) of the balance piston (18) extend, the end face (22) and the inside (23) of the bottom (11) outside the hydraulic fluid transfer (29) hydraulically sealing interact.
Figure imgaf001
EP06118699A 2005-09-27 2006-08-10 Force transmission device with a hydraulic valve adjusting device Withdrawn EP1767748A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005046062A DE102005046062A1 (en) 2005-09-27 2005-09-27 Power transmission device with hydraulic valve clearance compensation device

Publications (2)

Publication Number Publication Date
EP1767748A2 EP1767748A2 (en) 2007-03-28
EP1767748A3 true EP1767748A3 (en) 2010-01-20

Family

ID=37520285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06118699A Withdrawn EP1767748A3 (en) 2005-09-27 2006-08-10 Force transmission device with a hydraulic valve adjusting device

Country Status (4)

Country Link
EP (1) EP1767748A3 (en)
JP (1) JP2007092752A (en)
CA (1) CA2560983A1 (en)
DE (1) DE102005046062A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500425A1 (en) * 1985-01-09 1986-07-10 Motomak Motorenbau, Maschinen- u. Werkzeugfabrik, Konstruktionen GmbH, 8070 Ingolstadt HYDRAULIC CUPS FOR COMBUSTION ENGINES
DE19603916A1 (en) * 1996-02-03 1997-08-07 Schaeffler Waelzlager Kg Tappet for the valve train of an internal combustion engine
DE19705726A1 (en) * 1997-02-14 1998-08-20 Schaeffler Waelzlager Ohg Valve train of an internal combustion engine
DE4492633C1 (en) * 1993-05-04 2001-05-31 Schaeffler Waelzlager Ohg Valve lifter for IC engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19603915A1 (en) * 1996-02-03 1997-08-07 Schaeffler Waelzlager Kg Tappet for a valve train of an internal combustion engine
DE10028100B4 (en) * 2000-06-07 2006-07-27 Dr.Ing.H.C. F. Porsche Ag Plunger for actuating a valve of an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500425A1 (en) * 1985-01-09 1986-07-10 Motomak Motorenbau, Maschinen- u. Werkzeugfabrik, Konstruktionen GmbH, 8070 Ingolstadt HYDRAULIC CUPS FOR COMBUSTION ENGINES
DE4492633C1 (en) * 1993-05-04 2001-05-31 Schaeffler Waelzlager Ohg Valve lifter for IC engine
DE19603916A1 (en) * 1996-02-03 1997-08-07 Schaeffler Waelzlager Kg Tappet for the valve train of an internal combustion engine
DE19705726A1 (en) * 1997-02-14 1998-08-20 Schaeffler Waelzlager Ohg Valve train of an internal combustion engine

Also Published As

Publication number Publication date
DE102005046062A1 (en) 2007-03-29
EP1767748A2 (en) 2007-03-28
CA2560983A1 (en) 2007-03-27
JP2007092752A (en) 2007-04-12

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