EP0978638A1 - Dispositif de changement de phase entre un arbre et sa poulie d'entrainement - Google Patents

Dispositif de changement de phase entre un arbre et sa poulie d'entrainement Download PDF

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Publication number
EP0978638A1
EP0978638A1 EP99112226A EP99112226A EP0978638A1 EP 0978638 A1 EP0978638 A1 EP 0978638A1 EP 99112226 A EP99112226 A EP 99112226A EP 99112226 A EP99112226 A EP 99112226A EP 0978638 A1 EP0978638 A1 EP 0978638A1
Authority
EP
European Patent Office
Prior art keywords
shaft
changing
drive wheel
rotational position
relative rotational
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
EP99112226A
Other languages
German (de)
English (en)
Other versions
EP0978638B1 (fr
Inventor
Bernd Niethammer
Andreas Knecht
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.)
Dr Ing HCF Porsche AG
Hilite Germany GmbH
Original Assignee
Dr Ing HCF Porsche AG
Hydraulik Ring GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7876186&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0978638(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dr Ing HCF Porsche AG, Hydraulik Ring GmbH filed Critical Dr Ing HCF Porsche AG
Publication of EP0978638A1 publication Critical patent/EP0978638A1/fr
Application granted granted Critical
Publication of EP0978638B1 publication Critical patent/EP0978638B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil
    • 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
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34479—Sealing of phaser devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • the invention relates to a device for the relative change in the rotational position of a shaft Drive wheel, in particular a camshaft of an internal combustion engine, according to the Genus of the main claim.
  • Such a device is known for example from EP 0 781 899 A1.
  • This describes a device for changing the rotational position of the camshaft Internal combustion engine, wherein the camshaft is rotatably connected to an inner wheel is, which has radially arranged wings, the associated cells of a cellular wheel in divided into two opposing pressure rooms. These are pressure rooms Hydraulically actuated via a control valve.
  • the inner wheel is rotated relative to the cellular wheel.
  • the radial extending walls of the cellular wheel are in the area of their radial outside Provide depressions that are provided for receiving dirt particles, the are introduced into the pressure chambers via the pressure medium.
  • the one in the pressure medium located dirt particles collect depending on the direction of rotation Camshaft due to the accelerations acting on them and due to their Sluggishness essentially in one of the two depressions. This is about around the recess in relation to the direction of rotation.
  • the one on the Front of the respective wing or web of the inner part Dirt particles can indeed move into the front recess due to its relative movement of the cellular wheel, but due to their inertia they will not be there remain.
  • an entry of dirt particles in these Sealing area lead to a significantly excessive friction.
  • the generic Adjustment device to improve that dirt particles from the Can store pressure medium in non-critical areas of the pressure rooms without the Risk of increased friction and / or increased wear in the area of the sealing surface.
  • each pressure chamber several depressions are distributed over the circumference Incorporated peripheral surface, the path can be reduced in a particularly advantageous manner the dirt particles have to travel along the circumferential surface until they can be deposited in a depression.
  • a particularly simple machining of the cellular wheel and a relatively large volume for the admission of dirt particles arises when the depressions are in axial Direction over the entire length of the pressure chamber.
  • a particularly good sealing effect on the peripheral surface is achieved if the width of the depressions and / or the spacing of the depressions is less than 20% of the width of the adjacent web.
  • a further improved sealing effect is achieved if the width and / or the The distance between the depressions is less than 10% of the width of the adjacent web.
  • the sealing effect is achieved when the width of the depressions is approximately 0.5 to 1 mm.
  • the depth (in the radial direction) is preferably in the range between 0.2 and 0.5 mm.
  • the depressions can, for example, have a rectangular cross section exhibit. A particularly favorable execution in terms of production results if the depressions have an approximately semicircular cross section with a slightly conical shape Have opening area to the interior.
  • a cellular wheel with depressions on its circumferential surface can in particular advantageous and inexpensive way to be produced as a sintered component.
  • the Wells for receiving the dirt particles can then already at Sintering process can be created with. Machining the peripheral surface after Sintering is - as with components without a recess - without any additional effort or possible without further costs.
  • 1 shows the camshaft of an internal combustion engine the free end of which the inner part 2 of an adjusting device 3 is arranged in a rotationally fixed manner.
  • This inner part 2 is arranged in this embodiment with four radially Provide webs 4a to 4d.
  • the inner part is surrounded by a cellular wheel 5, which on way not shown connected to the crankshaft of the internal combustion engine is and therefore acts as a drive wheel.
  • the cellular wheel 5 is with four inwards projecting radial webs 6a to 6d, between which four cells are formed are, which by the webs of the inner part in two pressure spaces 7a to 7d and 8a are divided up to 8d.
  • These pressure rooms are designed so that the sum of the hydraulically effective surfaces in both adjustment directions is the same.
  • the pressure rooms 7a to 7d are each with a radial bore 9a to 9d in the inner part Annular groove 10 connected to the camshaft 1.
  • the pressure spaces 8a to 8d are in analogously via radial bores 11a to 11d in the inner part with a second one Annular groove 12 connected in the camshaft.
  • the annular groove 10 is with the Pressure channel 14 and the annular groove 12 connected to the pressure channel 13.
  • This Pressure channels 13 and 14 are in a manner known per se via a camshaft bearing 15 each connected to a control line 16 or 17.
  • the two control lines 16 and 17 are connected to a control valve 18 designed, for example, as a 4/3-way valve connected.
  • This control valve 18 is on the one hand with a pressure medium pump 19 and secondly connected to an oil tank 20.
  • All four connections are in the switching position II (neutral position) shown in FIG. 2 closed on one side to the control valve 18.
  • the adjustment device 3 is thus hydraulically locked or clamped and keeps their ingested Position assignment of inner part and cellular wheel at.
  • switch position I of the Control valve 18 the pressure chambers 7a to 7d through the holes 9a to 9d Annular groove 10, the pressure channel 14 and the line 17 from the pressure medium pump 19th acted upon.
  • the pressure chambers 8a to 8d are through the bores 11a to 11d, the annular groove 12, the pressure channel 13 and the control line 16 to the oil tank 20th relieved.
  • the webs 6a to 6d of the cellular wheel 5 each with their end faces sealing on the inner Circumferential surface 21 of the inner part 2.
  • the webs 4a to 4d of the inner part lie with their circumferentially curved end faces 23 sealing on the inner Circumferential surface 24 of the cellular wheel 5.
  • In this inner peripheral surface 24 are one A plurality of axially extending recesses 25 are incorporated. These are deepenings in this embodiment as longitudinal grooves with a rectangular cross section executed. Other cross-sectional shapes, such as Trapezoidal cross sections, Triangular cross sections or rounded cross sections are easily possible.
  • the Recesses 25 extend in the axial direction over the entire width of the Pressure spaces 7a to 7d and 8a to 8d of the width B of the webs 4a to 4d, 6a to 6d. These recesses are distributed over the circumference at regular intervals.
  • the width b and the distance d are chosen so that in about thirty wells are arranged in each pressure chamber. With distance d is here the distance between two adjacent side surfaces of the adjacent depressions Are defined. This distance corresponds to the width of the remaining web 26 Circumferential surface, which sealingly abuts the end face 23 of the web.
  • the Width D or the arc length of the end face 23 and the width b and the distances d the wells are coordinated in this embodiment so that in each case about ten depressions 25 are covered by the end face 23.
  • the width b of the depressions is included in the exemplary embodiment shown here about 0.75 mm. However, it is easily possible to determine the width b Varies between about 0.5 mm and 1 mm vary.
  • the depth (in radial The direction of the depressions 25) in the exemplary embodiment shown here is approximately 0.35 mm. However, it is also easily possible to set the depth in the area to vary between about 0.2 mm and 0.5 mm.
  • the wells 25 have here embodiment shown an approximately rectangular cross-section. It is however, it is also easily possible to add these recesses with an approx semicircular cross section with slightly conical opening area to the interior train there.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pulleys (AREA)
EP99112226A 1998-08-01 1999-06-25 Dispositif de changement de phase entre un arbre et sa poulie d'entrainement Expired - Lifetime EP0978638B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19834843A DE19834843A1 (de) 1998-08-01 1998-08-01 Einrichtung zur relativen Drehlagenänderung einer Welle zum Antriebsrad
DE19834843 1998-08-01

Publications (2)

Publication Number Publication Date
EP0978638A1 true EP0978638A1 (fr) 2000-02-09
EP0978638B1 EP0978638B1 (fr) 2003-09-17

Family

ID=7876186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112226A Expired - Lifetime EP0978638B1 (fr) 1998-08-01 1999-06-25 Dispositif de changement de phase entre un arbre et sa poulie d'entrainement

Country Status (7)

Country Link
US (1) US6129063A (fr)
EP (1) EP0978638B1 (fr)
JP (1) JP2000055171A (fr)
KR (1) KR100516423B1 (fr)
CN (1) CN1089848C (fr)
DE (2) DE19834843A1 (fr)
ES (1) ES2204034T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100516423B1 (ko) * 1998-08-01 2005-09-23 독터. 인제니어.하.체.에프.포르쉐악티엔게젤샤프트 구동 휠에 대한 축의 회전 위치 변경을 위한 장치

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250265B1 (en) 1999-06-30 2001-06-26 Borgwarner Inc. Variable valve timing with actuator locking for internal combustion engine
JP2001055914A (ja) * 1999-08-17 2001-02-27 Unisia Jecs Corp 内燃機関のバルブタイミング制御装置
DE19943833A1 (de) * 1999-09-13 2001-03-15 Volkswagen Ag Brennkraftmaschine mit hydraulischem Nockenwellenversteller zur Nockenwellenverstellung
JP3477406B2 (ja) * 1999-10-05 2003-12-10 株式会社日立ユニシアオートモティブ 内燃機関のバルブタイミング変更装置
US6311655B1 (en) 2000-01-21 2001-11-06 Borgwarner Inc. Multi-position variable cam timing system having a vane-mounted locking-piston device
US6247434B1 (en) * 1999-12-28 2001-06-19 Borgwarner Inc. Multi-position variable camshaft timing system actuated by engine oil
US6477999B1 (en) 1999-12-28 2002-11-12 Borgwarner Inc. Vane-type hydraulic variable camshaft timing system with lockout feature
US6263846B1 (en) 1999-12-28 2001-07-24 Borgwarner Inc. Control valve strategy for vane-type variable camshaft timing system
DE10039913C1 (de) * 2000-08-16 2001-10-18 Porsche Ag Vorrichtung zur relativen Drehwinkelverstellung einer Nockenwelle einer Brennkraftmaschine zu einem Antriebsrad
DE50211849D1 (de) 2001-09-11 2008-04-17 Porsche Ag Ventiltrieb für eine brennkraftmaschine
DE102005013141B4 (de) * 2005-03-22 2017-10-19 Schaeffler Technologies AG & Co. KG Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine
GB2431977A (en) * 2005-11-02 2007-05-09 Mechadyne Plc Camshaft assembly
DE102007020526A1 (de) * 2007-05-02 2008-11-06 Schaeffler Kg Nockenwellenversteller für eine Brennkraftmaschine mit verbesserter Ausführung der Druckräume
DE102010008003A1 (de) * 2010-02-15 2011-08-18 Schaeffler Technologies GmbH & Co. KG, 91074 Zellenrad
DE102010012652B4 (de) 2010-03-25 2018-05-17 Hilite Germany Gmbh Schwenkmotornockenwellenversteller mit einem Rotor
DE102011000822B4 (de) 2011-02-11 2012-11-08 Hydraulik-Ring Gmbh Gehäuse mit einem Schwenkmotorversteller
DE102018113977A1 (de) * 2018-06-12 2019-12-12 ECO Holding 1 GmbH Nockenwelleneinheit und Verfahren zur Herstellung einer Nockenwelleneinheit
DE102019116880A1 (de) * 2019-06-24 2020-12-24 ECO Holding 1 GmbH Nockenwellenversteller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781899A1 (fr) 1995-11-30 1997-07-02 Aisin Seiki Kabushiki Kaisha Dispositif de commande du colage des soupapes
DE19745908A1 (de) * 1997-10-17 1999-04-22 Schaeffler Waelzlager Ohg Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Flügelzellen-Verstelleinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5908A (en) * 1848-11-07 Richard solis
JPH05113112A (ja) * 1991-10-24 1993-05-07 Toyo A Tec Kk エンジンの弁開閉時期可変装置
EP0799977B1 (fr) * 1996-04-04 2000-12-13 Toyota Jidosha Kabushiki Kaisha Dispositif de variations du calage des soupapes d'un moteur à combustion interne
US5836276A (en) * 1996-08-09 1998-11-17 Denso Corporation Rotational phase adjusting apparatus having fluid reservoir
US5937816A (en) * 1998-07-27 1999-08-17 Wincewicz; John Garfield Combination carburetor backing plate and crankcase breather
DE19834843A1 (de) * 1998-08-01 2000-02-03 Porsche Ag Einrichtung zur relativen Drehlagenänderung einer Welle zum Antriebsrad

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781899A1 (fr) 1995-11-30 1997-07-02 Aisin Seiki Kabushiki Kaisha Dispositif de commande du colage des soupapes
DE19745908A1 (de) * 1997-10-17 1999-04-22 Schaeffler Waelzlager Ohg Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Flügelzellen-Verstelleinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100516423B1 (ko) * 1998-08-01 2005-09-23 독터. 인제니어.하.체.에프.포르쉐악티엔게젤샤프트 구동 휠에 대한 축의 회전 위치 변경을 위한 장치

Also Published As

Publication number Publication date
US6129063A (en) 2000-10-10
JP2000055171A (ja) 2000-02-22
DE19834843A1 (de) 2000-02-03
DE59906996D1 (de) 2003-10-23
CN1243911A (zh) 2000-02-09
CN1089848C (zh) 2002-08-28
KR20000016991A (ko) 2000-03-25
ES2204034T3 (es) 2004-04-16
KR100516423B1 (ko) 2005-09-23
EP0978638B1 (fr) 2003-09-17

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