DE102007062280A1 - Cylinder head unit - Google Patents

Cylinder head unit Download PDF

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Publication number
DE102007062280A1
DE102007062280A1 DE102007062280A DE102007062280A DE102007062280A1 DE 102007062280 A1 DE102007062280 A1 DE 102007062280A1 DE 102007062280 A DE102007062280 A DE 102007062280A DE 102007062280 A DE102007062280 A DE 102007062280A DE 102007062280 A1 DE102007062280 A1 DE 102007062280A1
Authority
DE
Germany
Prior art keywords
switching
cylinder head
head unit
recess
valve
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Withdrawn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
DE102007062280A
Other languages
German (de)
Inventor
Tilman Dipl.-Ing. Römheld
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.)
Daimler AG
Original Assignee
Daimler 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 Daimler AG filed Critical Daimler AG
Priority to DE102007062280A priority Critical patent/DE102007062280A1/en
Publication of DE102007062280A1 publication Critical patent/DE102007062280A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20Adjusting or compensating clearance
    • F01L1/22Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L1/053Camshafts overhead type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005Deactivating valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L1/185Overhead end-pivot rocking arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26Valve-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
    • F01L1/267Valve-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015Modifications 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
    • F01L13/0031Modifications 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 by modification of tappet or pushrod length
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts
    • F01L1/053Camshafts overhead type
    • F01L2001/0537Double overhead camshafts [DOHC]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00Valve arrangements comprising rollers

Abstract

The invention is based on a cylinder head unit, in particular an internal combustion engine, having at least one main operating medium recess (10) which is provided to guide a valve play compensating and valve operating switching element (11, 12). It is proposed that the main operating medium recess (10) has at least one supply section (13, 15, 17) which is provided to provide a supply pressure and at least one switching section (14, 16) which is provided to provide a switching pressure ,

Description

  • The The invention relates to a cylinder head unit according to the preamble of Claim 1.
  • It are already cylinder head units, in particular an internal combustion engine, with at least one main operating means recess provided therefor is a resource for to direct a lash adjuster and valve train switching element, known.
  • Of the Invention is in particular the object of a compact To provide cylinder head unit. It is according to the invention by the characteristics of the independent claims solved. Further embodiments emerge from the subclaims.
  • The The invention is based on a cylinder head unit, in particular one Internal combustion engine, with at least one main operating medium recess, which is intended to provide a resource for a lash adjuster and direct valve drive switching element.
  • It It is suggested that the main resource recess at least a supply section, which is intended to a Supply supply pressure, and at least one switching section which is intended to provide a switching pressure. Under a "Betriebsmittelausnehmung" is intended in particular a recess to be understood, which is an uninterruptible Hollow volume for conducting a resource and preferably is introduced in a manufacturing step. Under a "Hauptbetriebsmittelausnehmung" is a Betriebsmittelausnehmung be understood, which directly to a receiving device for the lash adjuster and valve drive switching element adjacent, or directly with a connection recess of the valve play compensation and valve drive switching element, via the the switching pressure or the supply pressure in the valve lash adjuster and valve train switching element is initiated, is connected. By an embodiment of the invention can access further major resource recesses that also immediately adjacent to the receiving device, be omitted whereby a compact design of the cylinder head unit is made possible. Preferably are the supply section and the switching section to it provided to be hydraulically separated from each other. Under a "manufacturing step" is intended in particular be understood that the structures in a temporally related Operation and / or by a tool or a machining operation introduced, such as a milling, a thermal deformation or a casting.
  • Further It is proposed that the supply section and the switching section are arranged substantially coaxially. This is a special easy introduction of the Betriebsmittelausnehmung in the cylinder head unit possible. Under "im Essentially "should In this context, in particular, be understood that main axes of extension the sections have an angle to any straight line, which is less than 10 degrees, with less than 5 degrees advantageous and zero degrees is particularly beneficial. Next is under "essentially coaxial "in particular be understood that at least one plane perpendicular to the Straight lines are found where the sections are on different sides lie on the plane. Furthermore should "under essentially "in In this context, in particular, be understood that minimal distances the main extension axes of the straight line are smaller than the middle one Radii of the corresponding sections. Preferably, the main axes of extension the sections or the sections themselves arranged coaxially.
  • Especially It is suggested that the main resource cavity be considered one Deep hole drilling executed is, whereby a coaxial arrangement particularly easily achieved can be.
  • Basically, the Supply section and the switching section are arranged arbitrarily. In particular at Betriebsmittelausnehmungen produced by casting are, it is conceivable unevenly running Betriebsmittelausnehmungen produce that meet at any angle to each other and there a cavity form a subdivision into the supply section and the Switching section allows.
  • Further It is proposed that the main resource recess be substantially in a cylinder head longitudinal direction runs. Under a "cylinder head longitudinal direction" is intended in particular be understood a direction in the cylinder of the internal combustion engine are arranged. As a result, the switching pressure, or the supply pressure easy to be brought to valve drives of all cylinders. Basically the Hauptmittelsmittelausnehmung but also essentially in one Cylinder head transverse direction, whereby the switching pressure or the supply pressure simply to different valve trains one single cylinder, for example, to a valve gear for a gas inlet side and a valvetrain for a gas outlet side, introduced can be.
  • Preferably, the cylinder head unit has at least one receiving device, to which the supply section and the switching section of the Main working recess adjacent and which is intended to receive the lash adjuster and valve train switching element. As a result, the valve play compensation and valve drive switching element can be supplied with operating medium simply via the two sections.
  • Further It is proposed that the valve drive device at least one Separating element, which is intended to the supply section and to hydraulically separate the switching section. Thereby Hydraulic separation is easy and flexible.
  • Especially It is proposed that the at least one separating element as at least a valve play compensation and valve drive switching element is executed, this hydraulically the supply section and the switching section separates each other. By a valve clearance compensation and valve train switching element a separation is particularly easy to reach. In particular, can thereby also space can be saved.
  • Further at least one connection resource recess is proposed, which is connected to one of the sections of the main operating medium recess is. This allows a resource easy in the individual sections be initiated. Preferably, the connection resource extension is ming further connected to a resource source. Under a "resource source" is intended in particular a device to be understood, which is intended to a Equipment pressure and in particular a switching and / or supply pressure to create. Preferably, the resource source is spatially separated disposed from the cylinder head unit and is via lines with the cylinder head unit connected, these lines basically as Betriebsmittelausnehmungen can be trained. Preferably, the connection resource recess is accurate a section, in particular a switching section, connected, wherein there may be connection resource recesses that coincide with each a section, in particular exactly one switching section, the Hauptbetriebsmittelausnehmung are connected.
  • advantageously, is the connection resource recess with the switching portion connected and designed to provide a switching pressure for the lash adjuster and to provide valve drive switching element. This is especially true a supply of the switching pressure easily possible. Further, the connection resource recess executed as a deep hole, the connection resource recess can be particularly easy in the cylinder head unit are introduced.
  • In addition, will suggested that the Verbindungsmittelsmittelmittelnehmung substantially perpendicular to the Hauptbetriebsmittelausnehmung. Thereby can be a short connection to a resource line that the Switching pressure provides, be found.
  • Further a Schaltmittelsmittelmittelnehmung is proposed by means of the connection resource recess with a portion of the main resource recess connected is. This allows an external resource channel be omitted, whereby a space can be further reduced can.
  • Preferably extends the switching resource recess substantially parallel to the main operating recess. As a result, a supply of all cylinders can be easily achieved. Especially It is suggested that the Schaltmittelsmittelmittelnehmung also as a deep hole drilling perform.
  • Further Advantages are shown in the following description of the drawing. In the drawings is an embodiment represented the invention. The description and the claims contain numerous features in combination. The skilled person will become the characteristics expediently also consider individually and summarize to meaningful further combinations.
  • there demonstrate:
  • 1 a schematic representation of an oil passage of a cylinder head unit,
  • 2 a representation of the cylinder head unit and
  • 3 a cross section through the cylinder head unit.
  • 1 schematically shows an oil guide in a cylinder head unit of an internal combustion engine according to the invention. The cylinder head unit is provided for a cylinder bank of the internal combustion engine. A second cylinder bank is not shown. The cylinder bank for which the cylinder head unit is provided has four cylinders 24 . 25 . 26 . 27 on. In the cylinder head unit are for each cylinder 24 . 25 . 26 . 27 four gas exchange valves 28 intended. In the cylinder head unit are to valve guides 29 arranged, with two valve guides each 29 on a gas inlet side 30 and two valve guides 29 on a gas outlet side 31 are arranged. For the two outer cylinders 24 . 27 The cylinder bank is on the gas inlet side 30 provided a switchable valve train.
  • The switchable valve drive of the gas inlet side 30 the two outer cylinders 24 . 27 is by means of valve clearance compensation and valve train switching elements 11 . 12 realized, on the one hand have a compensating element, by means of which a valve clearance is automatically compensated, and on the other hand have a switching element by means of which the valve train can be switched. The valvetrain of the gas inlet side 30 the two middle cylinders 25 . 26 as well as the valvetrain for all cylinders 24 . 25 . 26 . 27 the gas outlet side 31 are as conventional valve trains, the only lash adjusters 38 . 39 . 40 . 41 . 42 . 43 have formed. Basically, but all cylinders 24 . 25 . 26 . 27 with a valve train with valve clearance compensation and valve train switching elements 11 . 12 be equipped.
  • cradle 19 . 20 for the valve clearance compensation and valve train switching elements 11 . 12 , or recording device 32 . 33 . 34 . 35 . 36 . 37 for the valve clearance compensation elements 38 . 39 . 40 . 41 . 42 . 43 are the same design, whereby a flexible design of the valve trains is made possible. The recording devices 19 . 20 at the gas inlet side 30 the two outer cylinders 24 . 27 are provided to the valve clearance compensation and valve train switching elements 11 . 12 to pick up the remaining cradle 32 . 33 . 34 . 35 . 36 . 37 are provided, the non-switchable lash adjusters 38 . 39 . 40 . 41 . 42 . 43 to take up (cf. 2 ).
  • To order for the two outer cylinders 24 . 27 on the gas inlet side 30 To realize a switchable valve train with an independent valve clearance compensation, are two-lobed valve clearance compensation and valve train switching elements 11 . 12 used, which are supplied via two fluid supply lines with a supply pressure for the independent valve clearance compensation and a switching pressure for the switchable valve train.
  • In order to realize a compact dual-flow resource supply, the cylinder head unit has a main resource cavity 10 on, which is designed as a deep hole and the substantially in a cylinder head longitudinal direction 18 in which also the cylinders 24 . 25 . 26 . 27 are arranged, runs. The main resource recess 10 is introduced as an uninterruptible volume in one step in the cylinder head unit (see. 3 ).
  • The main resource recess 10 has a total of five sections 13 . 14 . 15 . 16 . 17 on, the first section 13 , the third section 15 and the fifth section 17 are as supply sections 13 . 15 . 17 formed, the supply pressure for the valve play compensation and valve train switching elements 11 . 12 provide. The second section 14 and the fourth section 16 are as switching sections 14 . 16 trained and provide a switching pressure for the valve clearance compensation and valve train switching elements 11 . 12 ready. The individual sections 13 . 14 . 15 . 16 . 17 thus form the resource supply lines for the valve clearance compensation and valve train switching elements 11 . 12 ,
  • The valve lash adjusters and valve train switching elements that form dividers form the sections 13 . 14 . 15 . 16 . 17 the main resource recess 10 in hydraulically separated sections 13 . 14 . 15 . 16 . 17 divided. The lash adjuster and valve train shift elements 11 . 12 are stable in the recording devices 19 . 20 arranged. The lash adjuster and valve train shift elements 11 . 12 in each case have a defined first side, from which they are supplied with the switching pressure, and a defined second side, from which they are supplied with the basic supply pressure on. Device on the valve lash adjuster and valve train shift elements 11 . 12 for a connection of the resource supply lines are at the same height on opposite sides of the valve play compensation and valve train switching elements 11 . 12 arranged.
  • Be the valve clearance compensation and valve train switching elements 11 . 12 in the appropriate recording device 19 . 20 Used, they are according to an arrangement of the adjacent switching sections 14 . 16 or supply sections 13 . 15 . 17 the main resource recess 10 aligned and then held by the position-fixed arrangement in this position.
  • Each one of the supply section 13 . 15 . 17 and one of the switching section 14 . 16 border on one of the receiving device 19 . 20 for one of the valve clearance compensation and valve train switching elements 11 . 12 at, wherein the supply section 13 . 15 . 17 and the switching section 14 . 16 each on opposite sides of the recording devices 19 . 20 adjoin.
  • The first and the third section 13 . 15 border directly on the recording devices 19 for the valve clearance compensation and valve train switching elements 11 of the first cylinder 24 at. They supply the valve clearance compensation and Ven tiltriebschaltelemente 11 with the supply pressure. The second section 14 also borders directly on the recording devices 19 for the valve clearance compensation and valve train switching elements 11 of the first cylinder 24 at. He is in cylinder head longitudinal direction 18 between the recording devices 19 arranged and supplies the lash adjuster and valve train switching elements 11 of the first cylinder 24 with the switching pressure.
  • The third section 15 powered by one of the valve clearance compensation and valve train switching elements 11 of the first cylinder 24 the valve clearance compensation elements 39 . 41 the two middle cylinders 25 . 26 and one of the lash adjuster and valve train shift elements 12 of the fourth cylinder 27 with the supply pressure. The valve clearance compensation elements 39 . 41 the two middle cylinders 25 . 26 are permeable, creating the third section 15 via cradle 34 . 36 for the valve clearance compensation element 39 . 41 the two middle cylinders 25 . 26 away goes.
  • Next to the third section 15 borders on the receiving device 19 for the valve clearance compensation and valve train switching elements 12 of the fourth cylinder 27 the fourth section 16 and the fifth section 17 at. The fourth section 16 lies in Zylinderkopontängsrichtung 18 between the recording devices 19 for the valve clearance compensation and valve train switching elements 12 of the fourth cylinder 27 and provides the lash adjuster and valve train shift elements 12 with the switching pressure. The fifth section 17 provides the outer of the valve lash adjuster and valve train shift elements 12 of the fourth cylinder 27 with the supply pressure.
  • The different sections 13 . 14 . 15 . 16 . 17 the main resource recess 10 are supplied with the switching pressure or the supply pressure via different operating supply lines.
  • The first paragraph 13 is over a vertically extending Betriebsmittelausnehmung 44 and a transverse channel not shown connected to a resource source and is on this Betriebsmittelausnehmung 44 supplied with the supply pressure (cf. 3 ).
  • The third section is about resource recess 45 in an intake camshaft 49 runs, connected to the resource source. Shown is a transitional element 46 , by means of which the Betriebsmittelausnehmung 45 in the intake camshaft 49 with the third section 15 the main resource recess 10 is connected and supplied with the supply pressure.
  • The fifth section 17 is via a resource recess 47 supplied by means of the valve clearance compensation elements 38 . 40 . 42 . 43 the gas outlet side 31 be supplied with the supply pressure, and a cross connection 48 connected to the resource source. The equipment recess 47 is also on the vertically extending Betriebsmittelausnehmung 44 and a non-illustrated transverse channel connected to the resource source.
  • For the supply of the second section 14 and the fourth section 16 as switching sections 14 . 16 are formed, the cylinder head unit has a Schaltemittelsausnehmung 23 on, which are parallel to the Hauptbetriebsmittelausnehmung 10 runs. At the Schaltmittelsmittelmittelausnehmung 23 the switching pressure is applied.
  • The switching resource recess 23 is over a first connection resource recess 21 with the second section 14 the main resource recess 10 connected. Via a second connection resource recess 22 is the Schalbetriebsmittelausnehmung 23 with the fourth section 16 the main resource recess 10 connected. About the connection resource recesses 21 . 22 become the lash adjuster and valve train switching element 11 . 12 the two outer cylinders 24 . 27 supplied with the switching pressure.
  • The connection resource recesses 21 . 22 are also designed as deep holes and are perpendicular to the Hauptbetriebsmittelausnehmung 10 , or the Schaltmittelbetriebsausnehmung 23 ,

Claims (15)

  1. Cylinder head unit, in particular an internal combustion engine, with at least one main operating medium recess ( 10 ) intended to provide a means for a valve lash adjuster and valve train switching element ( 11 . 12 ), characterized in that the main operating medium recess ( 10 ) at least one supply section ( 13 . 15 . 17 ), which is intended to provide a supply pressure, and at least one switching section ( 14 . 16 ), which is intended to provide a switching pressure.
  2. Cylinder head unit according to claim 1, characterized in that the supply section ( 13 . 15 . 17 ) and the switching section ( 14 . 16 ) are arranged substantially coaxially.
  3. Cylinder head unit according to claim 1 or 2, characterized in that the main operating medium recess ( 10 ) is designed as a deep hole.
  4. Cylinder head unit according to one of the preceding claims, characterized in that the main operating medium recess ( 10 ) substantially in a cylinder head longitudinal direction ( 18 ) runs.
  5. Cylinder head unit according to one of the preceding claims, characterized by at least one receiving device ( 19 . 20 ), to which the Supply section ( 13 . 15 . 17 ) and the switching section ( 14 . 16 ) of the main resource recess ( 10 ) and intended to provide the lash adjuster and valve train switching element. ( 11 . 12 ).
  6. Cylinder head unit according to claim 5, characterized by at least one separating element which is provided to the supply section ( 13 . 15 . 17 ) and the switching section ( 14 . 16 ) hydraulically separate from each other.
  7. Cylinder head unit according to claim 6, characterized in that the at least one separating element as at least one valve play compensation and valve drive switching element ( 11 . 12 ) is carried out, the supply section ( 13 . 15 . 17 ) and the switching section ( 14 . 16 ) hydraulically separated from each other.
  8. Cylinder head unit according to one of the preceding claims, characterized by at least one connecting medium recess ( 21 . 22 ) with one of the sections ( 14 . 16 ) of the main resource recess ( 10 ) connected is.
  9. Cylinder head unit according to claim 8, characterized in that the connecting medium recess ( 21 . 22 ) with the switching section ( 14 . 16 ) and is intended to provide a switching pressure for the lash adjuster and valve train switching element ( 11 . 12 ).
  10. Cylinder head unit at least according to claim 8, characterized in that, the connecting medium recess ( 21 . 22 ) is designed as a deep hole.
  11. Cylinder head unit at least according to claim 8, characterized in that the connecting medium recess ( 21 . 22 ) substantially perpendicular to the main operating medium recess ( 10 ) runs.
  12. Cylinder head unit according to at least claim 8, characterized by a switching-medium recess ( 23 ), which by means of the Verbindungsmittelsmittelmittelausnehmung ( 21 . 22 ) with a section ( 14 . 16 ) of the main resource recess ( 10 ) connected is.
  13. Cylinder head unit according to claim 12, characterized in that the switching medium recess ( 23 ) substantially parallel to the main operating medium recess ( 10 ) runs.
  14. Method for a cylinder head unit, in particular an internal combustion engine, having at least one main operating medium recess ( 10 ) intended to provide a means for a valve lash adjuster and valve train switching element ( 11 . 12 ), in particular for a cylinder head unit according to one of the preceding paragraphs, characterized in that the main operating medium recess ( 10 ) in at least one supply section ( 13 . 15 . 17 ), which is intended to provide a supply pressure, and at least one switching section ( 14 . 16 ), which is intended to provide a switching pressure.
  15. Method according to Claim 14, characterized in that the main operating medium recess ( 10 ) by means of the valve play compensation and valve drive switching element ( 11 . 12 ) is divided.
DE102007062280A 2007-12-21 2007-12-21 Cylinder head unit Withdrawn DE102007062280A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102007062280A DE102007062280A1 (en) 2007-12-21 2007-12-21 Cylinder head unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007062280A DE102007062280A1 (en) 2007-12-21 2007-12-21 Cylinder head unit
PCT/EP2008/009332 WO2009083062A1 (en) 2007-12-21 2008-11-06 Cylinder head unit

Publications (1)

Publication Number Publication Date
DE102007062280A1 true DE102007062280A1 (en) 2009-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE102007062280A Withdrawn DE102007062280A1 (en) 2007-12-21 2007-12-21 Cylinder head unit

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DE (1) DE102007062280A1 (en)
WO (1) WO2009083062A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2575279A (en) * 2018-07-04 2020-01-08 Fishtek Marine Ltd Pinger For Deterring Toothed Whales

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1308977C (en) * 1986-08-27 1992-10-20 Tsuneo Konno Valve operating device for internal combustion engine
DE19618401C1 (en) * 1996-05-08 1997-07-03 Porsche Ag Cylinder head arrangement for internal combustion engine
DE10119366A1 (en) * 2001-04-20 2002-10-24 Ina Schaeffler Kg Hydraulic system for internal combustion engine has coupling, valve drive element, track, hole, ducts, hydraulic pump, connection
US20050061289A1 (en) * 2003-09-18 2005-03-24 Plenzler Jeremy M. Engine oil system with oil pressure regulator to increase cam phaser oil pressure
FR2878570B1 (en) * 2004-11-26 2007-02-23 Peugeot Citroen Automobiles Sa Device for disengaging cylinders of an internal combustion engine
DE102005021113A1 (en) * 2005-05-06 2006-11-09 Daimlerchrysler Ag Gas exchange valve actuating device

Also Published As

Publication number Publication date
WO2009083062A1 (en) 2009-07-09

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R005 Application deemed withdrawn due to failure to request examination

Effective date: 20141223