WO2016071018A1 - Commande de soupape pour actionner des soupapes d'échange de gaz d'un moteur à combustion interne - Google Patents

Commande de soupape pour actionner des soupapes d'échange de gaz d'un moteur à combustion interne Download PDF

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Publication number
WO2016071018A1
WO2016071018A1 PCT/EP2015/067879 EP2015067879W WO2016071018A1 WO 2016071018 A1 WO2016071018 A1 WO 2016071018A1 EP 2015067879 W EP2015067879 W EP 2015067879W WO 2016071018 A1 WO2016071018 A1 WO 2016071018A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
phase
camshaft
camshafts
gear
Prior art date
Application number
PCT/EP2015/067879
Other languages
German (de)
English (en)
Inventor
Jürgen MEUSEL
Bernd Mann
Michael Kunz
Original Assignee
Thyssenkrupp Presta Teccenter 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 Thyssenkrupp Presta Teccenter Ag filed Critical Thyssenkrupp Presta Teccenter Ag
Priority to JP2017523858A priority Critical patent/JP2017534018A/ja
Priority to US15/523,842 priority patent/US20170314428A1/en
Priority to EP15753633.5A priority patent/EP3215719A1/fr
Priority to CN201580060668.8A priority patent/CN107075980A/zh
Priority to KR1020177015069A priority patent/KR20170080659A/ko
Publication of WO2016071018A1 publication Critical patent/WO2016071018A1/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
    • 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
    • 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
    • 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
    • F01L1/34413—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 composite camshafts, e.g. with cams being able to move relative to the camshaft
    • 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
    • F01L2001/0475—Hollow camshafts

Definitions

  • the present invention relates to a valve train for actuating gas exchange valves of an internal combustion engine with a first camshaft which is rotatably received in a first shaft axis and with a second camshaft which is rotatably received in a second shaft axis, wherein at least one of the camshafts is designed as an adjustable camshaft and an outer shaft, in which an inner shaft is rotatably received, wherein at least one of the camshafts is drivingly connected via a drive means with the crankshaft of the internal combustion engine, and wherein a phase actuator is provided, with the at least one inner shaft in its phase position relative to the phase position of at least one Outer shaft of the camshaft is variable.
  • DE 10 2006 049 243 A1 describes a valve drive for actuating gas exchange valves of an internal combustion engine having a first camshaft and a second camshaft, and the camshafts are arranged parallel to one another and designed as adjustable camshafts.
  • both camshafts on an outer shaft in each of which an inner shaft is rotatably received.
  • On the outside of the outer shaft fixed cams are applied, which are rotatably connected to the outer shaft and continue to be added to the outer shaft adjusting cam, which are rotationally connected to the inner shaft.
  • the adjusting cam rotate relative to the fixed cam, so that the timing can be changed, for example, of intake valves and exhaust valves to each other.
  • the outer shafts of the adjustable camshafts are jointly driven by a drive means by a crankshaft of the internal combustion engine, so that the phase position of the two outer shafts is mutually unchangeable.
  • On one of the two camshafts sits on the end of a phase actuator, and by the phase actuator, the inner shafts can be changed in their phase position relative to the phase angle of the outer waves.
  • the structural complexity of a camshaft increases significantly when a phase actuator is arranged on one end side of the camshaft.
  • phase actuators are usually driven hydraulically, and by the co-rotation of the phase actuator with the rotational movement of the camshaft fluid passages must be created, which usually takes place via an adjacent to the phase actuator slide bearing.
  • phase actuator slide bearing By several oil channels while the supporting cross-section of the outer shaft and / or the inner shaft is weakened, and also must be provided for the arrangement of the phase actuator on one end side of the camshaft, a corresponding space available.
  • DOHC the installation space for arranging a phase actuator is often severely limited. Consequently, it is desirable to simplify the construction and design effort to form a valve train, in particular designed as a DOHC valve train, and perform minimal construction space.
  • the object of the invention is the development of a valve train with two camshafts for actuating gas exchange valves of an internal combustion engine, and the valve train should have at least one adjustable camshaft and take up the smallest possible space.
  • an improved constructive solution for the arrangement and control of a phase actuator is to be created.
  • the invention is based on the general idea to arrange the phase actuator separately to the camshaft, and the phase actuator is in particular not arranged directly on an inner shaft or on an outer shaft of the camshaft. Rather, the phase actuator is to be arranged with its adjusting axis so that the adjusting axis is arranged, for example, parallel, but spaced from both shaft axes.
  • the invention solves the above problem in particular in that the phase actuator can be arranged freely, with only transmission means are to be provided, with which the phase actuator can be coupled with at least one of the two camshafts.
  • the phase actuator may have a stator and a rotor, and by applying fluid, the rotor in the stator may be rotated about the adjusting axis.
  • the stator and the rotor may be rotatably arranged in a common adjusting axis, wherein the adjusting axis is arranged parallel spaced from the shaft axes of the camshafts.
  • the rotor and / or the stator can intersect at least the outer shaft and / or the inner shaft of one of the camshafts, since the invention does not fundamentally claim that the phase actuator should be arranged in complete structural separation from the camshafts. Rather, only the adjusting axis should not lie in one of the shaft axes of the camshafts.
  • the phase actuator can be operatively connected to the at least one inner shaft via a first transmission means.
  • the transmission means may be formed by a gear pairing be, wherein the transmission means can also be formed by a traction means or the like.
  • the valve train may be designed with two adjustable camshafts, and the camshafts may have a respective outer shaft and a respective inner shaft, in particular, both inner shafts are immutable to each other via the first transmission means in their phase position immutable.
  • both inner shafts may be coupled to or via the phase actuator.
  • the outer shaft of the first camshaft and the outer shaft of the second camshaft with the drive means of the crankshaft of the internal combustion engine can be driven together. Consequently, the two outer shafts of the camshaft rotate in phase with each other, and the two inner shafts are also coupled to each other via the first transmission means and rotate in phase, so the phasing of the two inner shafts can be changed relative to the phase position of the two outer waves on the phase actuator.
  • the first transmission means may for example be connected to the rotor of the phase actuator, and the phase actuator may be operatively connected via a second transmission means with the outer shaft of one of the camshafts.
  • the second transmission means can be connected to the stator of the phase actuator. Consequently, by activating the phase actuator, the phase position of a rotational movement transmitted via the first transmission means can be changed for rotational movement transmitted via the second transmission means.
  • the particular advantage is that the two inner shafts of the camshaft can be changed in their phase position relative to the phase position of the two outer shafts on the separately arranged phase actuator.
  • the first transmission means is connected to the stator of the phase actuator.
  • the second transmission means with the rotor of the Phase actuator to be connected.
  • the phase position of a rotational movement which is transmitted via the first transmission means can be changed by an activation of the phase adjusting member to the rotational movement which is transmitted via the second transmission means.
  • the first transmission means may be formed between the inner shafts and the phase actuator by means of a respective gear pair having a first gear and a second gear.
  • the first gear can be rigidly connected, for example, with the rotor of the phase actuator and it can be provided two further gears, which rest on the respective inner shafts of the camshaft. Consequently, the two gears engage on the inner shafts at different circumferential positions in the gear on the phase adjusting member, so that via the teeth, the two inner shafts rotatably and synchronously connected in phase with each other.
  • the second transmission means may be formed between one of the outer shafts and the phase actuator by means of a gear pair having a first gear and a second gear.
  • the first gear may be connected, for example, with the stator of the phase actuator, and the second gear is seated on the outer shaft of one of the two camshafts.
  • a further second toothed wheel can also rest on the further outer shaft, which likewise engages with the first toothed wheel on the phase adjusting member. It may be sufficient that only one outer shaft is driven by the drive means with the crankshaft of the internal combustion engine.
  • the adjusting axis of the phase actuator can form a triangular arrangement with the shaft axes of the camshafts. Furthermore, there is the possibility that the adjusting axis lies in the same plane as the shaft axes of the camshafts. In a triangular arrangement, however, the advantage can be used that the camshaft can be arranged with a smaller distance from each other, without the diameter of the phase actuator affects the distance between the two camshafts.
  • Figure is a schematic view of a valve train for actuating gas exchange valves of an internal combustion engine with two adjustable camshafts, constructed according to the DOHC principle.
  • the figure shows a schematic view of a valve drive 1 for actuating gas exchange valves of an internal combustion engine with a first camshaft 10, which is rotatably received in a first shaft axis 1 1 and with a second camshaft 20 which is rotatably received in a second shaft axis 21.
  • the two camshafts 10, 20 may be accommodated together in a cylinder head of an internal combustion engine or in a hood module.
  • the exemplary embodiment shows the two camshafts 10 and 20 as adjustable camshafts, and the first camshaft 10 has an outer shaft 12 and an inner shaft 13, and the inner shaft 13 is rotatably supported in the outer shaft 12.
  • the second camshaft 20 has an outer shaft 22 and an inner shaft 23, wherein the inner shaft 23 is also rotatably supported in the outer shaft 22.
  • adjusting cams 15, 25 are rotatably received on the outside of the outer shafts 12, 22, which are rotationally connected to the inner shafts 13, 23. If the phase angle of the inner shafts 13, 23 is rotated relative to the phase position of the outer shafts 12, 22, then the adjusting cams 15, 25 rotate relative to the fixed cams 14, 24 about the shaft axes 11, 21.
  • the two outer shafts 12, 22 are driven together by a drive means 2, such as a chain or a toothed belt, and on the Outer shaft 12 of the first adjustable camshaft 10, a drive wheel 4.1 is applied, and on the outer shaft 22 of the second adjustable camshaft 20, a further drive wheel 4.2 is applied.
  • the drive means 2 drives via the drive wheels 4.1 and 4.2 both outer shafts 12 and 22 together with a mutually identical phase position.
  • the drive is via a crankshaft 3, which is indicated only schematically.
  • phase actuator 30 is arranged, and the phase actuator 30 has an actuating axis 33 which is arranged spaced to the first shaft axis 1 1 of the first camshaft 10 and the second shaft axis 21 of the second camshaft 20th
  • the phase adjusting member 30 is connected via a first transmission means 34 with the inner shafts 13, 23 of the camshafts 10, 20, wherein the outer shaft 22 of the second camshaft 20 is connected via a further, second transmission means 35 with the Phasenstellorgan 30.
  • the first transmission means 34 is formed by a first gear 34.1, which is connected to a rotor 32 of the phase actuator 30.
  • the first transmission means 34 has two second gears 34.2, and the second gears 34.2 sit on the respective shaft axes 1 1 and 21 of the camshafts 10 and 20, and are connected to the inner shafts 13 and 23.
  • the second transmission means 35 has a first gear 35.1, which is connected to the stator 31 of the phase actuator 30.
  • the second transmission means 35 further comprises a second gear 35.2, which is connected to the outer shaft 22 of the second camshaft 20, wherein the connection is shown only by way of example and the second gear 35.2 of the second transmission means 35 can in the same way with the outer shaft 12 of the first Camshaft 10 to be connected.
  • the embodiment shows a coupling of the first transmission means 34 with the rotor 32 of the phaser 30, wherein in the same way, a coupling with the stator 31 is possible.
  • the second transmission means 35 may be different from the front in connection with the stator 31, also connected to the rotor 32.
  • the invention enables activation of the phase actuator 30 in a particularly simple manner, since the accessibility is simplified in particular for fluid guides to the phase actuator 30.
  • the camshafts 10, 20 only gear wheels 34.2 and 35.2, which are connected for example in one piece with the inner shaft 13, 23 and with the outer shaft 22.
  • the separated structure of the phase actuator 30 separated from the camshafts 10, 20 thus results in a simple construction of a valve train, wherein in particular in the axial direction, that is, in the structural extension along the shaft axes 1 1, 21, the valve train 1 can be made aud ,
  • the limited space requirement arises in particular in that a space can be utilized for the arrangement of the phase actuator 30, which is located between the two camshafts 10, 20.

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

L'invention concerne une commande de soupape (1), destinée à actionner des soupapes d'échange de gaz d'un moteur à combustion interne, qui comprend un premier arbre à cames (10) logé de manière rotative dans un premier axe d'arbre (11) et un second arbre à cames (20) logé de manière rotative dans un second axe d'arbre (21) ; au moins un des arbres à cames (10, 20) est réalisée sous la forme d'un arbre à cames (10, 20) réglable et comporte un arbre extérieur (12, 22) dans lequel un arbre intérieure (13, 23) est logé de manière rotative, au moins un des arbres à cames (10, 20) étant en liaison d'entraînement avec un vilebrequin (3) du moteur à combustion interne par le biais d'un moyen d'entraînement (2) , et un élément de commande de phase (30) étant prévu qui permet de modifier la position de phase d'au moins un arbre intérieur (13, 23) par rapport à la position de phase d'au moins un arbre extérieur (12, 22) de l'arbre à cames (10, 20). L'invention est caractérisée en ce que l'élément de commande de phase (30) est agencé de façon à être placé à distance des deux axes d'arbre (11, 21).
PCT/EP2015/067879 2014-11-06 2015-08-04 Commande de soupape pour actionner des soupapes d'échange de gaz d'un moteur à combustion interne WO2016071018A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2017523858A JP2017534018A (ja) 2014-11-06 2015-08-04 内燃機関のガス交換バルブを作動させるためのバルブトレイン
US15/523,842 US20170314428A1 (en) 2014-11-06 2015-08-04 Valve train for actuating gas exchange valves of an internal combustion engine
EP15753633.5A EP3215719A1 (fr) 2014-11-06 2015-08-04 Commande de soupape pour actionner des soupapes d'échange de gaz d'un moteur à combustion interne
CN201580060668.8A CN107075980A (zh) 2014-11-06 2015-08-04 用于致动内燃机的气体交换阀的气门机构
KR1020177015069A KR20170080659A (ko) 2014-11-06 2015-08-04 내연 엔진의 가스 교환 밸브들을 작동시키기 위한 밸브 트레인

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014116194.7A DE102014116194A1 (de) 2014-11-06 2014-11-06 Ventiltrieb zur Betätigung von Gaswechselventilen einer Brennkraftmaschine
DE102014116194.7 2014-11-06

Publications (1)

Publication Number Publication Date
WO2016071018A1 true WO2016071018A1 (fr) 2016-05-12

Family

ID=53938308

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/067879 WO2016071018A1 (fr) 2014-11-06 2015-08-04 Commande de soupape pour actionner des soupapes d'échange de gaz d'un moteur à combustion interne

Country Status (7)

Country Link
US (1) US20170314428A1 (fr)
EP (1) EP3215719A1 (fr)
JP (1) JP2017534018A (fr)
KR (1) KR20170080659A (fr)
CN (1) CN107075980A (fr)
DE (1) DE102014116194A1 (fr)
WO (1) WO2016071018A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10400638B2 (en) * 2017-12-01 2019-09-03 Schaeffler Technologies AG & Co. KG Camshaft phaser arrangement for a concentrically arranged camshaft assembly

Citations (8)

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Publication number Priority date Publication date Assignee Title
US1527456A (en) * 1924-02-29 1925-02-24 Woydt Edward Valve-operating means
US2851851A (en) * 1953-11-06 1958-09-16 English Electric Co Ltd Pressure-charged internal combustion engines
US3496918A (en) * 1968-04-23 1970-02-24 Madison H Finlay Variable valve timing control for internal combustion engines
DE4036010A1 (de) * 1990-11-13 1992-05-14 Teves Gmbh Alfred Verstellbarer nockenwellenantrieb fuer eine brennkraftmaschine
DE10325352A1 (de) * 2003-06-05 2004-12-23 Daimlerchrysler Ag Vorrichtung zum Verstellen der relativen Drehlage zwischen einer Kurbelwelle und mindestens einer Nockenwelle
EP1614867A1 (fr) * 2004-06-21 2006-01-11 Mechadyne plc Moteur à distribution variable
US20100212619A1 (en) * 2009-02-23 2010-08-26 Shinichi Murata Internal combustion engine with variable valve gear
WO2013083789A1 (fr) * 2011-12-10 2013-06-13 Volkswagen Aktiengesellschaft Entraînement d'arbre à cames réglable

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US5417186A (en) * 1993-06-28 1995-05-23 Clemson University Dual-acting apparatus for variable valve timing and the like
JP3963084B2 (ja) * 2001-07-10 2007-08-22 スズキ株式会社 船外機用４サイクルエンジン
DE102006049243A1 (de) 2006-10-18 2008-04-24 Mahle International Gmbh Betätigungseinrichtung für zwei parallel drehende Nockenwellen
US8061318B2 (en) * 2007-09-27 2011-11-22 GM Global Technology Operations LLC Method and apparatus for continuously variable differential phasing of engine valve operation
JP2010019245A (ja) * 2008-06-13 2010-01-28 Honda Motor Co Ltd 内燃機関の動弁装置
KR101229692B1 (ko) * 2010-01-25 2013-02-05 미쯔비시 지도샤 고교 가부시끼가이샤 내연 기관의 가변 밸브 장치
DE102011106394A1 (de) * 2011-07-02 2013-01-03 Volkswagen Aktiengesellschaft Brennkraftmaschine
JP5426626B2 (ja) * 2011-09-03 2014-02-26 本田技研工業株式会社 開弁特性可変型内燃機関
JP5778598B2 (ja) * 2012-02-21 2015-09-16 日立オートモティブシステムズ株式会社 内燃機関の可変動弁装置
DE102012110881B4 (de) * 2012-11-13 2020-06-10 Hilite Germany Gmbh Nockenwelleneinrichtung
KR101542966B1 (ko) * 2013-12-20 2015-08-07 현대자동차 주식회사 캠 페이져와 캠샤프트-인-캠샤프트를 포함하는 밸브 트레인 레이아웃 구조

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1527456A (en) * 1924-02-29 1925-02-24 Woydt Edward Valve-operating means
US2851851A (en) * 1953-11-06 1958-09-16 English Electric Co Ltd Pressure-charged internal combustion engines
US3496918A (en) * 1968-04-23 1970-02-24 Madison H Finlay Variable valve timing control for internal combustion engines
DE4036010A1 (de) * 1990-11-13 1992-05-14 Teves Gmbh Alfred Verstellbarer nockenwellenantrieb fuer eine brennkraftmaschine
DE10325352A1 (de) * 2003-06-05 2004-12-23 Daimlerchrysler Ag Vorrichtung zum Verstellen der relativen Drehlage zwischen einer Kurbelwelle und mindestens einer Nockenwelle
EP1614867A1 (fr) * 2004-06-21 2006-01-11 Mechadyne plc Moteur à distribution variable
US20100212619A1 (en) * 2009-02-23 2010-08-26 Shinichi Murata Internal combustion engine with variable valve gear
WO2013083789A1 (fr) * 2011-12-10 2013-06-13 Volkswagen Aktiengesellschaft Entraînement d'arbre à cames réglable

Also Published As

Publication number Publication date
KR20170080659A (ko) 2017-07-10
EP3215719A1 (fr) 2017-09-13
DE102014116194A1 (de) 2016-05-12
US20170314428A1 (en) 2017-11-02
CN107075980A (zh) 2017-08-18
JP2017534018A (ja) 2017-11-16

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