EP2162601B1 - Brennkraftmaschine mit einer kurbelwelle und wenigstens einem zylinderkopf sowie kraftfahrzeug mit einer derartigen brennkraftmaschine - Google Patents

Brennkraftmaschine mit einer kurbelwelle und wenigstens einem zylinderkopf sowie kraftfahrzeug mit einer derartigen brennkraftmaschine Download PDF

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Publication number
EP2162601B1
EP2162601B1 EP08759163.2A EP08759163A EP2162601B1 EP 2162601 B1 EP2162601 B1 EP 2162601B1 EP 08759163 A EP08759163 A EP 08759163A EP 2162601 B1 EP2162601 B1 EP 2162601B1
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EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
crankshaft
valves
cylinder head
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.)
Active
Application number
EP08759163.2A
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German (de)
English (en)
French (fr)
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EP2162601A1 (de
Inventor
Georg Emmersberger
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP2162601A1 publication Critical patent/EP2162601A1/de
Application granted granted Critical
Publication of EP2162601B1 publication Critical patent/EP2162601B1/de
Active 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • 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
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • 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
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • F01L2003/256—Valve configurations in relation to engine configured other than perpendicular to camshaft axis

Definitions

  • the invention relates to an internal combustion engine comprising a crankshaft and at least one at least approximately in Kurbelwellenachslegi from an inlet to an exhaust port through-flow cylinder head with valves for opening and closing the channels and a first and a second camshaft for actuating the valves, both the first and Also, the second camshaft each associated with an inlet and an outlet valve and are arranged at least approximately parallel to the crankshaft.
  • Such an internal combustion engine is for example from the DE 38 41 710 A1
  • a single camshaft with an inlet cam and an exhaust cam is provided for actuating the valves.
  • the valves are actuated by means of rocker arm shafts lying parallel to the valve levels, in each case one cam activating two (inlet or outlet) valves simultaneously via a rocker arm shaft.
  • the cam engages at one end of the rocker arm shaft on, the levers for actuating the valves are spaced along the rocker arm shaft in the rocker arm shaft axis spaced from the cam follower lever.
  • a valvetrain for a small diesel engine comprising: a pair of camshafts rotatably mounted on a cylinder head and extending over the top thereof; a pair of intake and exhaust cams on each camshaft for each cylinder; two intake ports and two exhaust ports formed on the cylinder head above and around a bore center of each cylinder to communicate with the cylinder bore; two inlet valves and two outlet valves arranged in the respective openings to selectively open and close the openings; Breaker levers, one end of which is connected to upper ends of the respective valves; and lash adjusters connected to other ends of the respective breaker levers for adjusting the clearance between the breaker levers and the cams; wherein the inlet and outlet openings are arranged alternately zigzag.
  • a valve control is known for an internal combustion engine having at least one cylinder, the cylinder head having at least one pair of mutually inclined, with respect to the combustion chamber radially oriented valves which are actuated by a common camshaft by means of conical cams, in which between the radially oriented valves and the Conical cam in the cylinder head slidably mounted tappets are provided.
  • rocker shaft cover for supporting rocker shaft
  • the rocker shaft cover is formed as a ladder frame structure by a plurality of cover portions are formed, which support a respective rocker shaft integrally with support portions supporting both sides of each cover portion.
  • the invention is therefore an object of the invention to provide an aforementioned engine, in which a valve control for controlling a plurality of valves arranged in a cylinder head requires only a small installation space and which at the same time offers a particularly direct and rigid transmission path, so high especially at high valve accelerations Speeds are achievable.
  • a motor vehicle to be provided with such an internal combustion engine.
  • inlet and outlet valves (e) are inclined outwards with respect to a center plane dividing the cylinder in the direction of flow, with their ends on the cams.
  • the cylinder head can then be designed as a radial head, so that in particular space advantages can be achieved, for example, so space can be obtained to accommodate an ignition coil.
  • the first and the second camshaft and the drag levers with cam follower shaft (s) are arranged in a structurally separate carrier, so that the valve train is structurally separate from the valves. This not only a simplified because separate production of the cylinder head and the control carrier with valve train is possible but it is also simplifies the assembly by the valve gear is separately preassembled.
  • FIG. 1-4 is an extractable in cylinder crankshaft direction from an inlet 102, 202, 302, 402 to an exhaust passage 112, 212, 312, 412 through cylinder head 100, 200, 300 with two crankshaft parallel camshafts 126, 226, 227, 326, 327, 426, 427, in FIG. 4 with valve control carrier 400. It shows FIG. 1 a side view, FIG. 2 a plan view and the Figures 3 and isometric views.
  • the cylinder head 100, 200, 300 is part of a not shown here two-cylinder internal combustion engine in boxer design, which is preferably used to drive a motorcycle.
  • the internal combustion engine is arranged in the vehicle aligned with its crankshaft in the vehicle longitudinal direction.
  • Each cylinder head 100, 200, 300 is at least approximately in the direction of crankshaft axis from a directed to the vehicle rear inlet 102, 202, 302, 402 to a vehicle-facing outlet port 112, 212, 312, 412 flowed through.
  • inlet 102, 202, 302, 402 and outlet channel 112, 212, 312, 412 are each represented by the volume enveloped by the channel wall.
  • An actuation thereof takes place by means of camshafts 126, 226, 227, 326, 327, 426, 427 driven by the crankshaft.
  • camshafts 126, 226, 227, 326, 327, 426, 427 each have one Drive wheel 128, 328, 329, which is driven by means of a traction means, starting from the crankshaft.
  • the camshafts 126, 226, 227, 326, 327, 426, 427 may be driven from the crankshaft and the camshafts 126, 226, 227, 326, 327, 426, 427 may be in driving connection with each other.
  • the drive of one of the two camshafts 126, 226, 227, 326, 327, 426, 427 may be switchable, so that the corresponding valves 104, 114, 204, 205, 214, 215, 304, 305, 314, 315, 404, 405, 414, 415 remain unconfirmed even when the internal combustion engine is running.
  • the camshafts 126, 226, 227, 326, 327, 426, 427 are each provided with two cams 110, 120, 210, 220, 310, 320 and 211, 221, 311, 321, so that in each case with a camshaft 126, 226, 227, 326, 327, 426, 427 an inlet 104, 204, 205, 304, 305, 404, 405 and an outlet valve 114, 214, 215, 314, 315, 414, 415 is actuated.
  • a force / motion transmission from the cams 110, 120, 210, 211, 220, 221, 310, 311, 320, 321 to the valves 104, 114, 204, 205, 214, 215, 304, 305, 314, 315, 404, 405, 414, 415 takes place over a short path directly via rocker arms 108, 118, 208, 209, 218, 219, 308, 318, 408, 418 which pivotable on rocker arm shafts 122, 124, 222, 223, 224, 225, 322nd , 324, 422, 424 are stored.
  • cams 110, 120, 210, 211, 220, 221, 310, 311, 320, 321 and valves 104, 114 , 204, 205, 214, 215, 304, 305, 314, 315, 404, 405, 414, 415, bucket tappets, optionally with a valve lash adjuster, may be provided.
  • the inlet and outlet valves 104, 114, 204, 205, 214, 215, 304, 305, 314, 315, 404, 405, 414, 415 are outwardly inclined with respect to a central plane dividing the cylinder in the flow direction, with their camming ends pointing outwards the cylinder head 100, 200, 300 as Radial cylinder head can be shown. Accordingly, the cam followers 108, 118, 208, 209, 218, 219, 308, 318, 408, 418 are inclined with their cam follower shafts 122, 124, 222, 223, 224, 225, 322, 324, 422, 424 ( FIG. 1 ) and the cams 110, 120, 210, 211, 220, 221, 310, 311, 320, 321 have inclined cam running surfaces.
  • valve timing drive comprising the camshafts 126, 226, 227, 326, 327, 426, 427 and the cam followers 108, 118, 208, 209, 218, 219, 308, 318 with their cam follower shafts 122, 124, 222, 223, 224, 225 , 322, 324, 422, 424 is arranged in a structurally separate valve control carrier 400.
  • the valve control carrier 400 is divided into two parts along a parting plane 441 and comprises a lower part 440 and an upper part 442.
  • the parting plane 441 runs in the camshaft plane at least approximately in the region of the camshaft axes, so that during assembly the camshafts can be inserted into the lower part 440 and subsequently the Upper part 442 can be mounted.
  • Upper and lower parts 442, 440 are repeatedly screwed together by means of screws 448, 449 with each other and / or with the cylinder head, wherein in the present case, the screws 448, 449 are arranged in pairs opposite one another along the camshaft.
  • the upper part 442 is executed hood-like closed in the area of the camshafts 426, 427, while the area between the camshafts 426, 427 is open at the top.
  • the lower part 440 includes laterally cylindrical receptacles 444, 446.
  • the cam follower shafts 422, 424 are inserted and secured there by means of axial securing rings 423, 425.
  • the valve control carrier 400 is manufactured in aluminum die-cast and post-machined. Cylinder head and timing gear can therefore be edited and assembled separately and then joined together, which offers significant manufacturing and assembly and maintenance benefits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
EP08759163.2A 2007-07-11 2008-06-11 Brennkraftmaschine mit einer kurbelwelle und wenigstens einem zylinderkopf sowie kraftfahrzeug mit einer derartigen brennkraftmaschine Active EP2162601B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007032638A DE102007032638A1 (de) 2007-07-11 2007-07-11 Brennkraftmaschine mit einer Kurbelwelle und wenigstens einem Zylinderkopf sowie Kraftfahrzeug mit einer derartigen Brennkraftmaschine
PCT/EP2008/004646 WO2009006973A1 (de) 2007-07-11 2008-06-11 Brennkraftmaschine mit einer kurbelwelle und wenigstens einem zylinderkopf sowie kraftfahrzeug mit einer derartigen brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP2162601A1 EP2162601A1 (de) 2010-03-17
EP2162601B1 true EP2162601B1 (de) 2015-12-02

Family

ID=39745003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08759163.2A Active EP2162601B1 (de) 2007-07-11 2008-06-11 Brennkraftmaschine mit einer kurbelwelle und wenigstens einem zylinderkopf sowie kraftfahrzeug mit einer derartigen brennkraftmaschine

Country Status (6)

Country Link
US (1) US8307798B2 (enExample)
EP (1) EP2162601B1 (enExample)
JP (1) JP5484322B2 (enExample)
DE (1) DE102007032638A1 (enExample)
ES (1) ES2556730T3 (enExample)
WO (1) WO2009006973A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5740121B2 (ja) * 2010-09-16 2015-06-24 本田技研工業株式会社 動弁機構付きエンジン
FR3031137B1 (fr) * 2014-12-29 2016-12-23 Renault Sa Linguets de distribution arretes axialement par l'axe d'articulation et par la culasse
JP6653198B2 (ja) * 2016-03-22 2020-02-26 本田技研工業株式会社 内燃機関
JP6839576B2 (ja) * 2017-03-21 2021-03-10 本田技研工業株式会社 Ｄｏｈｃ型内燃機関
DE102024110311A1 (de) 2024-04-12 2025-10-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Reihen-Verbrennungsmotor
CN119042004A (zh) * 2024-10-29 2024-11-29 比亚迪股份有限公司 配气机构、发动机、配气方法、存储介质、控制装置及车辆

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB404501A (en) * 1933-03-20 1934-01-18 Fisker & Nielsen As Improvements in and relating to the valve gear of internal combustion engines particularly for motor cycles, automobiles, motor boats or the like
JPH06317110A (ja) * 1994-03-23 1994-11-15 Mitsubishi Motors Corp シリンダヘッドの構造

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1177861A (en) 1967-03-02 1970-01-14 Ustav Pro Vyzkum Motorovych Vo Valve Gear in Internal Combustion Engines
DE2703520A1 (de) * 1977-01-28 1978-08-03 Bayerische Motoren Werke Ag Zweizylinder-viertakt-boxermotor
JPS5965908U (ja) * 1982-10-26 1984-05-02 本田技研工業株式会社 内燃機関の動弁装置
AT382933B (de) * 1984-03-14 1987-04-27 Weichsler Hermann Ventilbetaetigung fuer hubkolben - brennkraftmaschinen
JPH0627486B2 (ja) * 1984-05-01 1994-04-13 ヤマハ発動機株式会社 自動車用ｖ型エンジン
US4592314A (en) * 1985-04-18 1986-06-03 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating mechanism for internal combustion engine
DE3841710C2 (de) 1987-12-22 1994-09-08 Bayerische Motoren Werke Ag Brennkraftmaschine mit einem Querstrom-Zylinderkopf, insbesondere luftgekühlter Einzel-Zylinderkopf für Motorrad-Brennkraftmaschinen
DE4016226A1 (de) * 1990-05-19 1991-11-21 Dalibor Plesek Reduzierung von abgasemissionen bei ventilgesteuerten verbrennungsmotoren durch variable steuerzeiten
JPH08260925A (ja) * 1995-03-24 1996-10-08 Nissan Motor Co Ltd エンジンの吸気システム
KR20010061204A (ko) * 1999-12-28 2001-07-07 이계안 고속 직접 분사식 디젤 엔진의 밸브 트레인 구조
JP2002038909A (ja) * 2000-07-25 2002-02-06 Toyota Motor Corp 動弁装置
JP4627121B2 (ja) * 2001-06-12 2011-02-09 ヤマハ発動機株式会社 三次元カムおよび三次元カム用研削装置
JP4123815B2 (ja) * 2002-04-30 2008-07-23 日産自動車株式会社 内燃機関のシリンダヘッドの組立方法
DE202007003411U1 (de) * 2006-11-20 2007-05-10 Wurster, Erwin Ventiltrieb für Brennkraftmaschinen mit luftgekühlten Zylindern und Querstromzylinderköpfen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB404501A (en) * 1933-03-20 1934-01-18 Fisker & Nielsen As Improvements in and relating to the valve gear of internal combustion engines particularly for motor cycles, automobiles, motor boats or the like
JPH06317110A (ja) * 1994-03-23 1994-11-15 Mitsubishi Motors Corp シリンダヘッドの構造

Also Published As

Publication number Publication date
ES2556730T3 (es) 2016-01-19
US8307798B2 (en) 2012-11-13
JP2010532839A (ja) 2010-10-14
DE102007032638A1 (de) 2009-01-15
WO2009006973A1 (de) 2009-01-15
JP5484322B2 (ja) 2014-05-07
US20100050968A1 (en) 2010-03-04
EP2162601A1 (de) 2010-03-17

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