WO2006136294A1 - Dispositif de commutation hydraulique de levée de soupape - Google Patents

Dispositif de commutation hydraulique de levée de soupape Download PDF

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Publication number
WO2006136294A1
WO2006136294A1 PCT/EP2006/005511 EP2006005511W WO2006136294A1 WO 2006136294 A1 WO2006136294 A1 WO 2006136294A1 EP 2006005511 W EP2006005511 W EP 2006005511W WO 2006136294 A1 WO2006136294 A1 WO 2006136294A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
throttle valve
cylinder head
guide element
oil
Prior art date
Application number
PCT/EP2006/005511
Other languages
German (de)
English (en)
Inventor
Jan Zimmermann
Original Assignee
Gm Global Technology Operations, Inc.
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 Gm Global Technology Operations, Inc. filed Critical Gm Global Technology Operations, Inc.
Publication of WO2006136294A1 publication Critical patent/WO2006136294A1/fr

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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/3443—Solenoid driven 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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves

Definitions

  • EP 0 671 550 A1 discloses a generic device for hydraulic valve lift switching in an internal combustion engine.
  • the hydraulic pressures in respectively associated oil passages are released at low temperature when the internal combustion engine starts to operate.
  • hydraulic pressure is applied to the one oil passage, but the hydraulic pressure in the second oil passage is released.
  • the hydraulic pressure is applied to both oil passages.
  • the connection and disconnection of the switching element used for this purpose is performed by operating integrated switching mechanisms in response to the application of the hydraulic pressure to the oil passages.
  • the oil supply channel of the throttle valve is at least partially formed by an extension tube inserted into an oil supply bore of the cylinder head.
  • the inserted extension tube allows a simple coupling of the lubricating oil supply to the throttle valve integrated in the guide element.
  • the guide element according to the invention consists of a pourable material - preferably a light metal - and has on the timing chain contact surface on an additional sliding coating over which the guide element is in contact with the timing chain and this leads.
  • the guide element may be made of plastic, wherein the sliding lining may also be omitted.
  • the electromagnetic throttle valve for valve lift switching between at least two throttle Positions switchable wherein the valve body containing the valve body is at least partially housed in a corresponding recess of the guide member, further comprising the electromagnetic actuator unit of the valve mechanism, including electrical connection is disposed outside of the guide member. It is also conceivable to completely integrate the electromagnetic throttle valve for valve lift switching in the guide element, so that only its electrical connection is accessible to the outside.
  • the partial integration in the guide element described above, however, has the advantage that the relative to the valve mechanism repair-prone electromagnetic actuator unit is easily accessible from the outside for repair purposes.
  • the electromagnetic throttle valve also supplies lubricating oil for lubrication of the timing chain in addition to the valve lift.
  • a riser passage extends from the throttle valve through the guide element, which opens out at the timing chain contact surface. At this point, lubricating oil can get from the throttle valve to the timing chain, which is lubricated over this.
  • the electromagnetic throttle valve thus serves in addition to the limitation of the oil pressure in Hydraulic valve lift switching also the branching of the oil flow for lubrication purposes.
  • Figure 1 is a perspective view of the part of a cylinder head of an internal combustion engine with in a
  • FIG. 2 shows a partial cross section through the cylinder head according to FIG. 1 in the region of the guide element to be attached here, and FIG.
  • FIG. 3 shows a cross section through an integrated in the guide element of Figure 1 throttle valve for mounting on the
  • a cylinder head 1 of an internal combustion engine (not shown) has two overhead camshafts, of which only one camshaft 2 is illustrated here.
  • the camshaft 2 is offset by means of timing chain 3 (indicated schematically here) in a conventional manner in rotational movement to actuate the switching element 4 via the cam.
  • the cylinder head 1 has a circulating oil gallery 5.
  • the switching elements 4 are each assigned - operated here - not shown - Hydrolifter, which are arranged within a receptacle 6 on the cylinder head 1.
  • a guide element 7 is provided for the timing chain 3 above the cylinder head 1.
  • the guide member 7 is made of a light metal and is provided at the timing chain contact surface with a sliding coating 8. To adjust different valve strokes is an operatively connected to the oil gallery 5 electromagnetically actuated throttle valve 9, which is partially integrated in the mounted on the cylinder head 1 guide member 7 for the timing chain 3.
  • the oil gallery 5 integrated in the cylinder head 1 comprises an oil supply riser 10, which is equipped with an inserted extension pipe 11.
  • the inserted extension tube 11 serves to supply oil to the throttle valve (not shown in this figure).
  • the electromagnetic throttle valve 9 is fed to the valve lift switching, starting from an oil supply passage 13 with lubricating oil, which passes through the guide member 7 therethrough.
  • the oil supply channel 13 extends - not shown here - extension tube 11 into it.
  • the valve body 14 containing the valve mechanism of the throttle valve 9 is partially accommodated in a corresponding recess of the guide element 7.
  • the electromagnetic throttle valve 9 further comprises an electromagnetic actuator 15, with which the valve mechanism is switchable.
  • the electromagnetic actuating unit 15 is together with an external electrical connection 16 outside the Guiding element 7 is arranged.
  • the oil pressure present from the oil supply channel 13 is more or less throttled forward to the oil drain channel 17 and from here reaches the siphon chamber 12 of the oil gallery 5 (not shown here).
  • the valve mechanism integrated in the electromagnetic throttle valve 9 branches the oil flow, so that a portion of the oil flow also flows through a riser duct 18 in the region of the sliding lining 8, which is also shown in the guide element 7.
  • the electromagnetic throttle valve 9 is fastened detachably to the guide element 7 via a fastening screw 19.

Abstract

L'invention concerne un dispositif de commutation hydraulique de levée de soupape dans un moteur à combustion interne équipé de plusieurs éléments de commutation (3) actionnés par au moins un arbre à cames (2) logé pivotant sur la culasse (1) et entraîné par une chaîne de distribution (3) pour commuter une soupape d'admission/de refoulement correspondante. L'élément de commutation (4) pour le réglage d'au moins deux levées de soupape différentes est réglable hydrauliquement au moyen d'une soupape d'étranglement (9). Cette soupape d'étranglement (9) à actionnement électromagnétique est au moins partiellement intégrée dans un élément de guidage (7) disposé sur la culasse (1) pour la chaîne de distribution (3).
PCT/EP2006/005511 2005-06-22 2006-06-09 Dispositif de commutation hydraulique de levée de soupape WO2006136294A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005028805.7 2005-06-22
DE200510028805 DE102005028805A1 (de) 2005-06-22 2005-06-22 Einrichtung zur hydraulischen Ventilhubumschaltung

Publications (1)

Publication Number Publication Date
WO2006136294A1 true WO2006136294A1 (fr) 2006-12-28

Family

ID=36950210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005511 WO2006136294A1 (fr) 2005-06-22 2006-06-09 Dispositif de commutation hydraulique de levée de soupape

Country Status (2)

Country Link
DE (1) DE102005028805A1 (fr)
WO (1) WO2006136294A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291528A (en) * 1969-07-30 1972-10-04 Nissan Motor Valve timing system in an automotive internal combustion engine
US5732612A (en) * 1995-08-26 1998-03-31 Hydraulik-Ring Antriebs- Und Steuerungstechnik Gmbh Actuator for a position-adjusting device, preferably for a valve lift adjusting device of motor vehicles
EP0945598A2 (fr) * 1998-03-27 1999-09-29 Yamaha Hatsudoki Kabushiki Kaisha Moteur à combustion interne à 4 temps
US6295964B1 (en) * 2000-08-10 2001-10-02 Ford Global Technologies, Inc. End-feed variable cam timing oil supply and control module
EP1201885A1 (fr) * 2000-10-25 2002-05-02 Honda Giken Kogyo Kabushiki Kaisha Système de contrôle des soupapes d'un moteur à combustion interne
US20020059911A1 (en) * 2000-11-22 2002-05-23 Masayuki Takahashi Internal combustion engine
US20030172897A1 (en) * 2002-03-12 2003-09-18 Ford Global Technologies, Inc. Oil feed system for IC engine with variable camshaft timing
DE10307623A1 (de) * 2003-02-22 2004-09-02 Daimlerchrysler Ag Vorrichtung zur relativen Drehwinkeländerung einer Nockenwelle zu einem Antriebsrad einer Brennkraftmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535732A (en) * 1983-06-29 1985-08-20 Honda Giken Kogyo Kabushiki Kaisha Valve disabling device for internal combustion engines
JP2891013B2 (ja) * 1993-01-18 1999-05-17 日産自動車株式会社 Ｖ型内燃機関における可変バルブタイミングコントロール装置
GB2329675A (en) * 1997-09-27 1999-03-31 Mechadyne Ltd I.c. engine front cover with oil supply passages
JP4163315B2 (ja) * 1999-01-11 2008-10-08 本田技研工業株式会社 エンジンの動弁装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291528A (en) * 1969-07-30 1972-10-04 Nissan Motor Valve timing system in an automotive internal combustion engine
US5732612A (en) * 1995-08-26 1998-03-31 Hydraulik-Ring Antriebs- Und Steuerungstechnik Gmbh Actuator for a position-adjusting device, preferably for a valve lift adjusting device of motor vehicles
EP0945598A2 (fr) * 1998-03-27 1999-09-29 Yamaha Hatsudoki Kabushiki Kaisha Moteur à combustion interne à 4 temps
US6295964B1 (en) * 2000-08-10 2001-10-02 Ford Global Technologies, Inc. End-feed variable cam timing oil supply and control module
EP1201885A1 (fr) * 2000-10-25 2002-05-02 Honda Giken Kogyo Kabushiki Kaisha Système de contrôle des soupapes d'un moteur à combustion interne
US20020059911A1 (en) * 2000-11-22 2002-05-23 Masayuki Takahashi Internal combustion engine
US20030172897A1 (en) * 2002-03-12 2003-09-18 Ford Global Technologies, Inc. Oil feed system for IC engine with variable camshaft timing
DE10307623A1 (de) * 2003-02-22 2004-09-02 Daimlerchrysler Ag Vorrichtung zur relativen Drehwinkeländerung einer Nockenwelle zu einem Antriebsrad einer Brennkraftmaschine

Also Published As

Publication number Publication date
DE102005028805A1 (de) 2007-01-04

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