EP1771642A1 - Mecanisme de distribution de moteur a combustion interne - Google Patents

Mecanisme de distribution de moteur a combustion interne

Info

Publication number
EP1771642A1
EP1771642A1 EP05773272A EP05773272A EP1771642A1 EP 1771642 A1 EP1771642 A1 EP 1771642A1 EP 05773272 A EP05773272 A EP 05773272A EP 05773272 A EP05773272 A EP 05773272A EP 1771642 A1 EP1771642 A1 EP 1771642A1
Authority
EP
European Patent Office
Prior art keywords
cam
shaft
internal combustion
toothed
engines
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
EP05773272A
Other languages
German (de)
English (en)
Other versions
EP1771642B1 (fr
Inventor
Harald Elendt
Christof Faria
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.)
IHO Holding GmbH and Co KG
Original Assignee
INA Schaeffler KG
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 INA Schaeffler KG filed Critical INA Schaeffler KG
Publication of EP1771642A1 publication Critical patent/EP1771642A1/fr
Application granted granted Critical
Publication of EP1771642B1 publication Critical patent/EP1771642B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F01L1/08—Shape of cams
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • 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
    • 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
    • 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
    • F01L2013/0052—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 with cams provided on an axially slidable sleeve

Definitions

  • Valve gear of an internal combustion engine having at least one camshaft, which has a toothed shaft and at least one cam piece with a plurality of different, juxtaposed cam tracks for different actuation of gas exchange valves by displacement of the cam pieces by means of actuators on the toothed shaft, wherein the toothed shaft a wave profile and the cam pieces a matching Have hub profile.
  • Such a valve train of an internal combustion engine is known from DE 196 11 641 C1.
  • the displacement of the cam pieces on the toothed shaft of the camshaft is made possible by a shaft and hub profile. Since reciprocating internal combustion engines in four-stroke design have set ignition sequences at a fixed cylinder number, the cams must be arranged at a certain angle to one another on the camshaft. In a four-cylinder reciprocating internal combustion engine with the same firing interval, the angle of rotation of the inlet valve cams relative to one another and the outlet valve cams to one another are each 90 °. It certainly does not pose a problem to produce a corresponding camshaft. Object of the invention
  • the object of the invention is to provide a generic valve drive of a Brenn ⁇ engine, by which it is possible to use the same gear shaft and the same cam pieces for the intake and / or exhaust valve camshaft a variety of engine versions, as a uniform Profileie ⁇ tion low Sicilkoste ⁇ and equal blanks for the gear shaft and the cam pieces means.
  • the object of the invention is achieved in that the wedges, notches or teeth of the shaft and hub profile have such a number that with the same toothed shafts and cam pieces, the various cam positions of four-stroke internal combustion engines of any type, such as series, V or W machines, and any number of cylinders are feasible.
  • wedges, notches or teeth in relation to the shaft and hub profiles is intended to indicate that there are various standard axle and hub profiles, all of which are to be covered by the present invention. Namely, if one and the same profile and thus one and the same toothed shaft and one and the same basic cam piece are used for the most different angles, then it is necessary to be able to realize different angular positions.
  • the four-cylinder in-line engine 90 °, the six-cylinder in-line engine and also the six-cylinder V-engine with the same firing interval angle is 60 °, at a Eight-cylinder V engine 45 ° and with a twelve-cylinder V engine 30 °.
  • These angular distances apply to the entire engine and consequently only if, per engine, an intake valve camshaft and an exhaust camshaft or a common, uniform camshaft for input and output Exhaust valves is used. If at least one separate camshaft is used per V-series per cylinder bank or cylinder bank, the ignition sequence of the engine is taken into consideration.
  • the number of wedges, notches or teeth if furthermore a five-cylinder in-line engine and a ten-cylinder V-engine should also be considered, is preferably 120 or a multiple of 120.
  • various other engines such as W engines or even V engines up to twenty cylinders, can and should be represented.
  • the diameter of the toothed shaft and the cam pieces can certainly be kept within limits, there are in addition to the mentioned wave profiles still fine profiles, by which it is possible to represent small twist angles at reasonable diameters, especially since it is common in these engines to use several camshafts
  • Figure 1 is a side view of a camshaft with Gas monocytes and
  • a cylinder of a reciprocating internal combustion engine is shown at 1 with parts of a valve drive.
  • the parts include, inter alia, a toothed shaft 2 with Nocken ⁇ pieces 3, two actuator pins 4 and 5, transmission members 6 and 7 between the cam pieces and designated 8 gas exchange valves.
  • the gas exchange valves 8 can be designed as inlet or outlet valves.
  • the toothed shaft 2 has a wave profile 9 at least over sections of its longitudinal extent. Fits to this are the cam pieces 3 with a Na provided benprofil 10, by which they are arranged rotationally but axially displaceable on the toothed shaft 2.
  • the cam pieces 3 have on their outer circumference depending on a bearing 11, which serves to support the cam piece 3 and thus the toothed shaft 2.
  • the bearings 11 are associated with bearings 12, which are not shown, attached to a cylinder head Zy ⁇ .
  • the cam tracks 13 and 14 have different cam strokes, but have the same base circle diameter. The latter is significant, so that no jamming between the transmission members 6 and 7 and the cam tracks 13 and 14 when moving the cam pieces 3 is formed.
  • the cam tracks 13 and 14 are followed by cylindrical sections 16, with which the cam pieces 3 end.
  • the cylindrical sections 16 each have a displacement groove 17 and 18 for each displacement direction. These are preferably formed and arranged in a mirror-image with respect to one another, so that the pitch of both displacers 17 and 18 is opposite. You have a slope that corresponds to their displacement in one revolution of the cam pieces 3.
  • the sliding grooves 17 and 18 run at the periphery of the cylindrical portions 16 via end pieces 19 at a distance and offset from each other.
  • the actuator pins 4, 5 are mounted in not shown Aktuatorgepuren. They are alternately retracted into the sliding grooves 17 and 18. This causes the axial displacement of the cam pieces.
  • the corrugated profile 9 is designed as a toothed groove profile with teeth 20 and recesses 21, onto which corresponding inner teeth and inner recesses of the hub profile 10 formed as the toothed profile 10 of the cam pieces 3 are fitted.
  • suitable number of teeth of the gear hub profile and the Zahn ⁇ wave profile can be the desired angle of rotation of the cam pieces. 3 to realize each other on one and the same toothed shaft 2, so that at a number of teeth of 24 or a multiple of 24 a large number of Moto ⁇ ren with one and the same toothed shaft and the same basic cam pieces can be realized. If five-cylinder in-line engines and ten-cylinder V-engines are added to cover the range of conventional vehicle engines, preferably 120 teeth or a multiple per toothed shaft profile and toothed hub profile can be favorable in order to achieve the desired angular twisting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

La présente invention concerne un mécanisme de distribution d'un moteur à combustion interne comprenant au moins un arbre à cames qui comprend un arbre denté (2) et au moins une partie came (3) avec plusieurs trajectoires de came différentes (13, 14) disposées côte à côte, permettant différents actionnements de soupapes d'échanges gazeux (8) par déplacement des parties came (3) au moyen d'actionneurs (tiges d'actionnement 4 et 5) sur l'arbre denté (2). Selon l'invention, l'arbre denté (2) présente un profil d'arbre (9) et les parties came (3) présentent un profil de moyeu (10) adapté à celui-ci, et le nombre de clavettes, encoches ou dents (19) du profil d'arbre (9) et du profil de moyeu (10), est tel que les mêmes arbres dentés (2) et parties came (3) permettent d'obtenir les différentes positions de cames de moteurs à combustion interne à quatre temps de tous types tels que des moteurs à cylindres en ligne, en V ou en W, et comprenant un nombre de cylindres quelconques.
EP05773272A 2004-07-30 2005-07-02 Mecanisme de distribution de moteur a combustion interne Active EP1771642B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004037198A DE102004037198A1 (de) 2004-07-30 2004-07-30 Ventiltrieb einer Brennkraftmaschine
PCT/EP2005/007148 WO2006012959A1 (fr) 2004-07-30 2005-07-02 Mecanisme de distribution de moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1771642A1 true EP1771642A1 (fr) 2007-04-11
EP1771642B1 EP1771642B1 (fr) 2008-01-23

Family

ID=35170001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05773272A Active EP1771642B1 (fr) 2004-07-30 2005-07-02 Mecanisme de distribution de moteur a combustion interne

Country Status (7)

Country Link
US (1) US7472671B2 (fr)
EP (1) EP1771642B1 (fr)
JP (1) JP4537452B2 (fr)
CN (1) CN100504042C (fr)
DE (2) DE102004037198A1 (fr)
ES (1) ES2302221T3 (fr)
WO (1) WO2006012959A1 (fr)

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DE102007037232A1 (de) * 2007-08-07 2009-02-12 Eto Magnetic Gmbh Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine
DE102007037745A1 (de) * 2007-08-10 2009-02-12 Daimler Ag Brennkraftmaschinenventiltriebumschaltvorrichtung
DE102007057811B4 (de) * 2007-11-30 2015-04-30 Volkswagen Ag Ventiltrieb für Gaswechselventile einer Brennkraftmaschine
DE102008029349A1 (de) * 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
DE102008029325A1 (de) * 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
DE102008035935A1 (de) * 2008-07-31 2010-02-11 Audi Ag Zahnwellenverbindung und Ventiltrieb mit Zahnwellenverbindung zwischen einer Nockenwelle und verschiebbaren Nockenträgern
DE102008053723B4 (de) * 2008-10-29 2023-12-07 Neumayer Tekfor Engineering Gmbh Gebaute Nockenwelle
DE202009016619U1 (de) * 2009-02-06 2010-09-23 Schaeffler Technologies Gmbh & Co. Kg Ventiltrieb einer Brennkraftmaschine
DE102009022657A1 (de) * 2009-05-26 2011-01-05 Audi Ag Nockenwelle sowie Verfahren zur Herstellung
CN101619663B (zh) * 2009-07-30 2012-08-22 燕山大学 二冲程与四冲程可切换内燃机的配气凸轮机构
DE102009055868A1 (de) * 2009-11-26 2011-06-01 Neumayer Tekfor Holding Gmbh Nockenwelle
DE102011011803A1 (de) * 2011-02-19 2012-08-23 Volkswagen Ag Betätigungsmodul für mindestens ein Gaswechselventil einer Brennkraftmaschine
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DE102011101868B4 (de) * 2011-05-16 2013-02-07 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Vorrichtung zur Variation des Ladungswechselventilhubes bei einer Verbrennungskraftmaschine
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DE102011109256B4 (de) * 2011-08-02 2015-11-19 Audi Ag Ventiltrieb einer Brennkraftmaschine sowie Brennkraftmaschine
DE102012004420A1 (de) * 2012-03-08 2013-09-12 Daimler Ag Kraftfahrzeugventiltriebverstellvorrichtung
KR101427958B1 (ko) 2012-12-18 2014-08-11 현대자동차 주식회사 다단 가변 밸브 리프트 장치 및 이를 포함하는 엔진
KR101461890B1 (ko) 2013-03-14 2014-11-14 현대자동차 주식회사 다단 가변 밸브 리프트 장치, 다단 가변 밸브 리프트 시스템 및 이를 포함하는 엔진
DE102013005803A1 (de) * 2013-04-04 2014-10-09 Daimler Ag Ventiltriebvorrichtung für eine Brennkraftmaschine
DE102013225066B4 (de) 2013-12-06 2015-07-16 Schaeffler Technologies AG & Co. KG Verfahren zum Schleifen einer Nockenwelle eines hubvariablen Ventiltriebs
DE102014014599B3 (de) * 2014-10-07 2016-02-18 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Vorrichtung für einen Ventiltrieb zum Umschalten des Hubs von Gaswechselventilen einer Brennkraftmaschine
DE102016114664A1 (de) * 2015-10-08 2017-04-13 Toyota Jidosha Kabushiki Kaisha Ventilbetätigungsvorrichtung für eine Brennkraftmaschine
WO2017079383A1 (fr) 2015-11-06 2017-05-11 Borgwarner Inc. Système d'actionnement de soupape offrant une levée de soupape variable et/ou un réglage de soupape variable
JP6465135B2 (ja) * 2017-03-23 2019-02-06 トヨタ自動車株式会社 内燃機関システム
DE102017003081A1 (de) * 2017-03-31 2018-10-04 Man Truck & Bus Ag Variabler Ventiltrieb mit Bremsnocken
KR102335326B1 (ko) 2017-05-16 2021-12-03 현대자동차 주식회사 다단 가변 밸브 리프트 장치
CN111033030B (zh) 2017-08-17 2022-03-08 瓦锡兰芬兰有限公司 用于内燃活塞发动机的凸轮轴组件和将内燃活塞发动机转换为在至少两种操作模式下运行的方法
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Also Published As

Publication number Publication date
US7472671B2 (en) 2009-01-06
ES2302221T3 (es) 2008-07-01
DE502005002682D1 (de) 2008-03-13
EP1771642B1 (fr) 2008-01-23
DE102004037198A1 (de) 2006-03-23
JP2008508458A (ja) 2008-03-21
US20070204819A1 (en) 2007-09-06
CN100504042C (zh) 2009-06-24
JP4537452B2 (ja) 2010-09-01
WO2006012959A1 (fr) 2006-02-09
CN1985074A (zh) 2007-06-20

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