EP2743466B1 - Déphaseur à moteur rotatif - Google Patents

Déphaseur à moteur rotatif Download PDF

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Publication number
EP2743466B1
EP2743466B1 EP20130195665 EP13195665A EP2743466B1 EP 2743466 B1 EP2743466 B1 EP 2743466B1 EP 20130195665 EP20130195665 EP 20130195665 EP 13195665 A EP13195665 A EP 13195665A EP 2743466 B1 EP2743466 B1 EP 2743466B1
Authority
EP
European Patent Office
Prior art keywords
rotor
sleeve
connector
oscillating motor
working
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.)
Not-in-force
Application number
EP20130195665
Other languages
German (de)
English (en)
Other versions
EP2743466A1 (fr
Inventor
Fatih Dogan
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.)
Hilite Germany GmbH
Original Assignee
Hilite Germany 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
Priority claimed from DE102012112059.5A external-priority patent/DE102012112059A1/de
Application filed by Hilite Germany GmbH filed Critical Hilite Germany GmbH
Priority to EP20130195665 priority Critical patent/EP2743466B1/fr
Publication of EP2743466A1 publication Critical patent/EP2743466A1/fr
Application granted granted Critical
Publication of EP2743466B1 publication Critical patent/EP2743466B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01L1/34—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
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves
    • 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

Definitions

  • the invention relates to a Schwenkmotorversteller with the features specified in the preamble of claim 1.
  • a Schwenkmotorversteller with the features specified in the preamble of claim 1 is from the EP 2 508 723 A2 known.
  • Schwenkmotorversteller With a Schwenkmotorversteller the angular position on the camshaft with respect to a drive wheel is changed continuously during the operation of an internal combustion engine. By turning the camshaft, the opening and closing times of the gas exchange valves are shifted so that the internal combustion engine brings its optimum performance at the respective speed.
  • Schwenkmotorversteller have a stator 1 which is rotatably connected to the drive wheel.
  • a rotor is arranged, which is non-rotatably connected to the camshaft and by hydraulic pressure, which rests against one of its two rotor terminals, can be adjusted relative to the stator.
  • the hydraulic pressure is provided by a central valve in the camshaft at its first or second working port.
  • Object of the present invention is to show a way how the working ports of the central valve can be inexpensively connected to one of the two rotor connections.
  • the working ports of the central valve are connected via an annular space with the rotor terminals.
  • the two annular spaces are each sealed on the one hand to the central valve and on the other hand to the rotor. Hydraulic pressure at a working port of the central valve thus transfers to the associated rotor port so that the angular position of the rotor relative to the stator can be controlled.
  • the two sealing points of the sleeve can be sealed with sealing rings.
  • only one of the two sealing points is sealed with a sealing ring, while the other sealing point is sealed by a press fit of the sleeve.
  • a sealing ring can be seated between the sleeve and the central valve and the sleeve can be pressed into the hub of the rotor.
  • Manufacturing and position tolerances of the sleeve with respect to the sleeve surrounded by the central valve can be compensated by a sealing ring, such as an O-ring.
  • the sleeve protrudes from the rotor.
  • a protruding from the rotor portion of the sleeve having an annular shoulder in which there is a recess into which engages a projection of the rotor. In this way, the positioning of the sleeve relative to the rotor can be facilitated and twisting of the sleeve relative to the rotor can be prevented.
  • the sleeve can be made, for example, as a double drawn deep drawn part.
  • the sleeve has three cylindrical sections, for example a first cylindrical section which presses a sealing ring against the central valve, a second cylindrical section which bears against the rotor and a third cylindrical section outside the rotor.
  • the diameter of the second cylindrical portion is larger than the diameter of the first cylindrical portion and the diameter of the third cylindrical portion larger than the diameter of the second cylindrical portion.
  • the Schwenkmotorversteller 14 has a cylindrical stator 1 which is rotatably connected to the drive wheel 2.
  • the drive wheel 2 is a sprocket over which a chain, not shown, is guided.
  • the drive wheel 2 may also be a toothed belt wheel, via which a drive belt is guided as a drive element.
  • the stator 1 is drivingly connected to the crankshaft.
  • the stator 1 comprises a cylindrical stator base body 3, on the inside of which protrude webs 4 at equal intervals radially inwardly. Between adjacent webs 4 gaps 5 are formed, in which, via an in Fig. 2 controlled central valve 12 controlled, pressure medium is introduced. Between adjacent webs 4 protrude wings 6, which project radially outward from a cylindrical rotor hub 7 of a rotor 8. These wings 6 divide the spaces 5 between the webs 4 each in two pressure chambers 9 and 10. The one pressure chamber 9 is associated with the adjustment in the direction of "early", whereas the other pressure chamber is associated with the adjustment in the "late” direction.
  • the webs 4 lie with their end faces sealingly against the outer circumferential surface of the rotor hub 7.
  • the wings 6 in turn lie with their end faces sealingly against the cylindrical inner wall of the stator main body 3.
  • the rotor 8 is rotatably connected to the camshaft 18. In order to change the angular position between the camshaft 18 and the drive wheel 2, the rotor 8 is rotated relative to the stator 1. For this purpose, depending on the desired direction of rotation Pressure medium in the pressure chambers 9 or 10 is pressurized, while the respective other pressure chambers 10 or 9 are relieved via the tank port T to the tank. In order to pivot the rotor 8 counterclockwise relative to the stator 1 into the illustrated position, a first annulus 19 as an annular rotor channel in the rotor hub 7 is pressurized by the central valve 12. From this first rotor channel then lead further channels 11 as the first rotor connection in the pressure chambers 10.
  • This first annular space 19 is associated with the first working port A of the central valve 12.
  • the central valve 12 pressurizes a second annular space 20 as an annular rotor channel in the rotor hub 7, into which channels 13 open as the second rotor connection.
  • This second rotor channel 20 is associated with the second working port B.
  • These two annular spaces 19, 20 are arranged with respect to a central axis 22 axially spaced from each other, so that these in the plane of Fig. 1 lie hidden behind each other.
  • the Schwenkmotorversteller 14 is placed on the designed as a hollow tube 16 camshaft 18.
  • the rotor 8 is placed on the camshaft 18.
  • the hollow tube 16 has bores for a tank connection T and a supply connection V.
  • one of the two working ports A, B is connected either to the tank connection T or the supply connection and thus either the first rotor connection 11 or the second rotor connection 13 is subjected to hydraulic pressure.
  • hydraulic pressure at the first rotor connection 11 the rotor 8 is therefore displaced relative to the stator 1 in a first direction and by hydraulic pressure at the second rotor connection 13 relative to the stator 1 in a second, opposite direction of rotation.
  • the two annular spaces 19, 20 are separated in the axial direction by a sleeve 30 from each other.
  • the annular spaces 19, 20 are thus formed by subdividing an annular space between the rotor 8 and the central valve 12.
  • One of the two annular spaces 19 connects the first working connection A with the first rotor connection 11 and the other annular space 20 connects the second working connections B with the second rotor connection 13.
  • the diameter of the sleeve 30 increases between the two working ports A, B of the hydraulic central valve 12.
  • a sealing ring 31 is arranged between the two working ports A, B and can sit in a groove of the central valve 12.
  • This second cylindrical section has openings for the passage of hydraulic fluid to connect the working port B via the annular space 20 with the second rotor terminal 13.
  • the sleeve 30 may protrude from the rotor 8, for example with a third cylindrical portion having a larger diameter than the first and the second cylindrical portion. Between the second cylindrical portion and the third cylindrical portion, the sleeve 30 has an annular shoulder. The annular shoulder has a recess into which a projection 32 engages in the axial direction. The sleeve 30 is thus rotatably connected to the rotor 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (9)

  1. Déphaseur à moteur rotatif, avec
    un stator (1),
    un rotor (8), qui est logé dans le stator (1) et qui peut être déplacé par une pression hydraulique à un premier raccord de rotor (11) dans une première direction par rapport au stator (1) et par une pression hydraulique à un deuxième raccord de rotor (13) dans une deuxième direction par rapport au stator (1),
    une soupape centrale (12), qui traverse un moyeu (7) du rotor (8) et qui s'engage dans un arbre à cames (18),
    dans lequel la soupape centrale (12) présente un premier raccord de travail (A) et un deuxième raccord de travail (B) à une distance axiale du premier raccord de travail (A),
    dans lequel le premier raccord de travail (A) est relié au premier raccord de rotor (11) et le deuxième raccord de travail (B) est relié au deuxième raccord de rotor (13),
    dans lequel une chambre annulaire entre la soupape centrale (12) et le rotor (8) est divisée au moyen d'une douille (30) en deux chambres annulaires (19, 20), dans lequel une des deux chambres annulaires (19) relie le premier raccord de travail (A) au premier raccord de rotor (11) et l'autre chambre annulaire (20) relie le deuxième raccord de travail (B) au deuxième raccord de rotor (13),
    caractérisé en ce que
    la douille (30) présente une première section cylindrique, qui est disposée dans le moyeu (7) du rotor (8), une deuxième section cylindrique, qui a un plus grand diamètre que la première section cylindrique et qui est disposée dans le moyeu (7) du rotor (8), et une troisième section cylindrique, qui a un plus grand diamètre que la deuxième section cylindrique et qui se trouve à l'extérieur du rotor (8).
  2. Déphaseur à moteur rotatif selon la revendication 1, caractérisé en ce que le diamètre de la douille (30) augmente entre les deux raccords de travail (A, B).
  3. Déphaseur à moteur rotatif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un joint d'étanchéité (31) est disposé entre la douille (30) et la soupape centrale (12).
  4. Déphaseur à moteur rotatif selon la revendication 3, caractérisé en ce que le joint d'étanchéité (31) est logé dans une rainure de la soupape centrale (12).
  5. Déphaseur à moteur rotatif selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille (30) est appliquée sur le rotor (8) en ajustement serré.
  6. Déphaseur à moteur rotatif selon la revendication 5, caractérisé en ce qu'une partie de la douille (30) appliquée sur le rotor (8) présente des ouvertures destinées au passage de liquide hydraulique.
  7. Déphaseur à moteur rotatif selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille (30) sort hors du rotor (8).
  8. Déphaseur à moteur rotatif selon la revendication 7, caractérisé en ce que la douille (30) présente un épaulement, dans lequel se trouve une découpe, dans laquelle s'engage une saillie (32) du rotor (8).
  9. Déphaseur à moteur rotatif selon la revendication 7 ou 8, caractérisé en ce que la douille (30) comporte à l'extérieur du rotor (8) une partie d'extrémité, qui présente un plus grand diamètre que le moyeu (7) du rotor (8).
EP20130195665 2012-12-11 2013-12-04 Déphaseur à moteur rotatif Not-in-force EP2743466B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20130195665 EP2743466B1 (fr) 2012-12-11 2013-12-04 Déphaseur à moteur rotatif

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012112059.5A DE102012112059A1 (de) 2012-12-11 2012-12-11 Schwenkmotorversteller
EP13195339 2013-12-02
EP20130195665 EP2743466B1 (fr) 2012-12-11 2013-12-04 Déphaseur à moteur rotatif

Publications (2)

Publication Number Publication Date
EP2743466A1 EP2743466A1 (fr) 2014-06-18
EP2743466B1 true EP2743466B1 (fr) 2015-03-18

Family

ID=49724496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130195665 Not-in-force EP2743466B1 (fr) 2012-12-11 2013-12-04 Déphaseur à moteur rotatif

Country Status (1)

Country Link
EP (1) EP2743466B1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10346443A1 (de) * 2003-10-07 2005-05-04 Daimler Chrysler Ag Hydraulischer Nockenwellenversteller für eine Brennkraftmaschine
DE102005034275B4 (de) * 2005-07-22 2018-02-15 Daimler Ag Nockenwellenstellventilvorrichtung
DE102008030058B4 (de) * 2008-06-27 2010-06-17 Hydraulik-Ring Gmbh Nockenwellenverstelleinrichtung und geeignetes Ventil dafür
DE102008030057B4 (de) * 2008-06-27 2018-01-25 Hilite Germany Gmbh Nockenwellenverstelleinrichtung
DE102008057491A1 (de) * 2008-11-15 2010-05-20 Daimler Ag Nockenwellenverstellvorrichtung
DE102010023864B4 (de) * 2010-06-15 2018-03-08 Hilite Germany Gmbh Zentralventil für einen Schwenkmotornockenwellenversteller
DE102010060180B4 (de) * 2010-10-26 2017-06-29 Hilite Germany Gmbh Zentralventil
US8534246B2 (en) * 2011-04-08 2013-09-17 Delphi Technologies, Inc. Camshaft phaser with independent phasing and lock pin control
DE102012213002A1 (de) * 2012-07-24 2014-01-30 Schwäbische Hüttenwerke Automotive GmbH Nockenwellen-Phasensteller mit Dichtungshülse

Also Published As

Publication number Publication date
EP2743466A1 (fr) 2014-06-18

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