CN104718353A - 用于凸轮轴调节系统的控制阀 - Google Patents

用于凸轮轴调节系统的控制阀 Download PDF

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CN104718353A
CN104718353A CN201380053802.2A CN201380053802A CN104718353A CN 104718353 A CN104718353 A CN 104718353A CN 201380053802 A CN201380053802 A CN 201380053802A CN 104718353 A CN104718353 A CN 104718353A
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camshaft
pressure medium
control valve
valve
valve pocket
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CN104718353B (zh
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大卫·克勒
延斯·霍佩
阿里·巴伊拉克达尔
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Schaeffler Technologies AG and Co KG
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    • 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
    • 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
    • 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
    • F01L2001/0476—Camshaft bearings
    • 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
    • F01L2001/34433—Location oil control valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

用于液压设备的控制阀，特别是用于活塞往复式内燃机的凸轮轴调节系统的中央阀，该控制阀具有伸到凸轮轴(8)的空腔中的阀套(1)，其中，在该阀套(1)中布置有能移动的控制活塞(3)，控制活塞在一侧上借助弹簧(4)加负荷，压力介质管路连通阀套，其中，凸轮轴(8)的空腔借助在凸轮轴(8)中的至少一个输送管路(16)并且借助支承部与活塞往复式内燃机的压力介质输送通道连接，并且其中，压力介质管路构造为压力介质流入管路并且压力介质流入管路借助在凸轮轴(8)中的压力管路(12)并且借助支承部与活塞往复式内燃机的压力介质输送通道连接。

Description

用于凸轮轴调节系统的控制阀
技术领域
用于液压设备的控制阀，特别是用于活塞往复式内燃机的凸轮轴调节系统的中央阀，该控制阀具有伸到凸轮轴的空腔中的阀套，其中，在阀套中布置有能移动的控制活塞，该控制活塞在一侧上借助弹簧加负荷，压力介质管路连通阀套。
背景技术
这种类型的具有阀套的控制阀由DE-10 2007 058 491 A1所公知。该控制阀是用于在活塞往复式内燃机上对气门的配气正时进行可变调节的设备的组成部分。在端部上空心地构造的凸轮轴中拧入了该控制阀，并且结合控制活塞来控制压力介质流入、导向凸轮轴调节单元的控制管路以及与压力介质管路连接的压力介质流出。在该控制阀中，在阀套的靠外的端部的区域中的压力介质流入通过内燃机的固定不动的壳体部件来实现，从而在结构上极为限制了对调节器系统的装入和设计。
此外，存在的问题在于，在活塞往复式内燃机的停机状态时会从控制阀或者凸轮轴调节器中有压力介质意外地回流，并且管路和调节室的空转将导致意外地调节了配气正时。
此外，一般公知的是，通过联接在压力介质输送通道上的支承部对空心的凸轮轴进行供应，其中，从支承面出发地设置有至少一个径向输送管路。
在此，对于凸轮轴支承部的耐疲劳强度来说重要的是，在发动机启动之后最短时间内将油压加载到支承部上。
发明内容
本发明的任务在于，以如下方式改进控制阀并且特别是阀套，即，一方面给凸轮轴支承部快速且足够地提供以压力介质/润滑介质，并且另一方面，利用简单的手段给控制阀并且进而给凸轮轴调节器同样提供以压力介质。在此，凸轮轴调节器系统和控制阀的油体积量也要与对凸轮轴的油供给隔开。
通过如下方式实现本发明的任务，即，凸轮轴的空心腔借助在凸轮轴中的至少一个输送管路并且借助支承部与活塞往复式内燃机的压力介质输送通道连接，并且压力介质管路构造为压力介质流入管路并且该压力介质管路借助在凸轮轴中的压力管路并且借助支承部与活塞往复式内燃机的压力介质输送通道连接。
由此确保了，控制阀和凸轮轴调节器也经由支承部和活塞往复式内燃机的压力介质输送通道提供以压力介质，而并不依赖于对凸轮轴的压力介质供给。在此，涉及到了本质上的简化，这是因为压力介质供给经由唯一的压力介质输送通道和支承部来实现，其中，从支承部通至压力介质流入管路地设置有压力管路，而通至凸轮轴地则设置有输送管路。但是，要明确地指出的是，也可以设置有隔开的通至支承部位的压力介质输送部。该支承部优选指的是凸轮轴的与凸轮轴调节器相邻的端部支承部。
在本发明的进一步设计方案中提出，至少一个输送管路和至少一个压力管路并排地于支承部之内径向地布置在凸轮轴中。由此同时实现了经由活塞往复式内燃机的压力介质输送通道和支承部来对凸轮轴和凸轮轴调节器进行供应。
通常，不是仅将一个输送管路和一个压力管路，而是将多个输送管路和压力管路都施加到在凸轮轴的支承部位上的凹槽处，从而使压力介质可以连续地到达凸轮轴和凸轮轴调节器。
在本发明的进一步的设计方案中提出，阀套在凸轮轴的里面至少直至输送管路地延伸，并且阀套将输送管路与压力管路隔开。这优选借助O形圈来实现，该O形圈使阀套相对于空心凸轮轴的内壁密封地封闭。在此，为了便于装配，将O形圈布置在阀套的凹槽中。由于将对控制阀和凸轮轴调节器以及凸轮轴的压力介质输送分离开从而确保了，凸轮轴调节器和控制阀不会空转，并且此外，在活塞往复式内燃机启动之后最短的时间内将压力介质加载到凸轮轴的支承部上。对凸轮轴及其支承部的压力介质供给以有利的方式经由阀套内的至少一个径向孔和轴向孔来实现，它们将一个或若干个输送管路与凸轮轴的空腔连接起来。控制阀和凸轮轴调节器的压力介质供给部具有在压力介质流入管路上的盲孔(10)以及径向孔。
附图说明
为了进一步阐述本发明引用了附图，在附图中，简化地示出了本发明的实施例。其中：
图1示出通过控制阀的截面，该控制阀具有阀套、凸轮轴调节器和凸轮轴，并且
图2示出通过控制阀的截面，该控制阀具有阀套。
具体实施方式
在图1和图2中，大体上详细地示出了，用1标记阀套，在阀套中嵌入了控制套2，在控制套自身中布置有控制活塞3且以能轴向移动的方式支承。控制活塞3与弹簧4处于作用连接，该弹簧支撑在弹簧座5上。该弹簧座5支撑在控制套2上。
控制活塞3具有头部6，并未示出的执行器与该头部相对应，该执行器可以使控制活塞3抵抗弹簧4的力地移动并且因此控制住了压力介质流入的、控制管路的和压力介质流出的横截面。阀套1具有延长轴颈7，在延长轴颈的靠内的端部上加入螺纹，利用该螺纹，阀套1可以拧入到凸轮轴8中。凸轮轴8空心地实施。阀套1还承载有没有详细进行描述的凸轮轴调节器9，该凸轮轴调节器液压地与阀套1处于作用连接。此外，阀套1在它的内部中具有盲孔10，该盲孔与阀套的内腔连接。径向孔连通盲孔10，该径向孔通向环形腔11，凸轮轴8中的两个压力管路12连通该环形腔，压力管路通向在凸轮轴8中的凹槽13。此外，阀套1还具有轴向孔14，径向孔15连通该轴向孔，该径向孔同样通向如下的环形腔，在凸轮轴8中的输送管路16连通该环形腔，输送管路延伸直至凸轮轴8中的周侧凹槽17。在径向孔15与盲孔10上的孔之间，在阀套上装入O形圈18，该O形圈利用凸轮轴的内壁密封地进行封闭。O形圈18其本身被置入在导向凹槽19中，以便确保在装配时对O形圈18的安全引导。
通过对阀套1和凸轮轴8的该设计方案确保了，从内燃机的压力介质输送通道中的压力介质流入和流出经由支承部以及压力管路12和输送管路16分离开。
附图标记说明
1  阀套
2  控制套
3  控制活塞
4  弹簧
5  弹簧座
6  头部
7  延长轴颈
8  凸轮轴
9  凸轮轴调节器
10 盲孔
11 环形腔
12 压力管路
13 凹槽
14 轴向孔
15 径向孔
16 输送管路
17 周侧凹槽
18 O形圈
19 导向凹槽

Claims (5)

1.用于液压设备的控制阀，特别是用于活塞往复式内燃机的凸轮轴调节系统的中央阀，所述控制阀具有伸到凸轮轴(8)的空腔中的阀套(1)，其中，在所述阀套(1)中布置有能移动的控制活塞(3)，所述控制活塞在一侧上借助弹簧(4)加负荷，压力介质管路联接到其上，其特征在于，所述凸轮轴(8)的空腔借助在所述凸轮轴(8)中的至少一个输送管路(16)并借助支承部与所述活塞往复式内燃机的压力介质输送通道连接，所述压力介质管路构造为压力介质流入管路，并且所述压力介质流入管路借助在所述凸轮轴(8)中的压力管路(12)并借助所述支承部与所述活塞往复式内燃机的压力介质输送通道连接。
2.根据权利要求1所述的控制阀，其特征在于，所述至少一个输送管路(16)和至少一个所述压力管路(12)并排地于支承部区域之内布置在所述凸轮轴(8)中。
3.根据权利要求1或2所述的控制阀，其特征在于，所述阀套(1)在所述凸轮轴(8)之内至少直至所述输送管路(16)地延伸，并且所述压力介质流入管路具有盲孔(10)和径向孔，所述盲孔和径向孔与所述输送管路(16)隔开地与所述压力管路(12)连接。
4.根据前述权利要求中任一项所述的控制阀，其特征在于，隔开借助O形圈(18)来实现，所述O形圈使所述阀套(1)相对于空心的凸轮轴(8)的内壁密封地封闭。
5.根据前述权利要求中任一项所述的控制阀，其特征在于，在所述阀套(1)中设置有至少一个径向孔(15)和轴向孔(14)，所述径向孔和轴向孔将所述输送管路(16)与所述凸轮轴(8)的空腔连接起来。
CN201380053802.2A 2012-10-16 2013-07-12 用于凸轮轴调节系统的控制阀 Expired - Fee Related CN104718353B (zh)

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PCT/DE2013/200045 WO2014059975A1 (de) 2012-10-16 2013-07-12 Steuerventil für ein nockenwellenverstellersystem

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CN106256996A (zh) * 2015-06-22 2016-12-28 现代自动车株式会社 连续可变气门正时装置及设有该装置的发动机
CN108071435A (zh) * 2016-11-14 2018-05-25 爱信精机株式会社 阀开闭时期控制装置
CN109373037A (zh) * 2018-11-14 2019-02-22 宁波太平洋电控系统有限公司 一种带有凸轮轴润滑结构的中央阀阀套

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DE102014219990B4 (de) 2014-09-12 2017-10-05 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
JP6442945B2 (ja) * 2014-09-16 2018-12-26 アイシン精機株式会社 弁開閉時期制御装置
DE102014220278A1 (de) 2014-10-07 2016-04-07 Schaeffler Technologies AG & Co. KG Steuerventil für ein Nockenwellenverstellsystem und Verfahren zu dessen Herstellung
DE102014115903B4 (de) * 2014-10-31 2020-07-30 Hilite Germany Gmbh Hydraulikventil und Schwenkmotorversteller
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DE102012218802A1 (de) 2014-04-17
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US9422838B2 (en) 2016-08-23
DE102012218802B4 (de) 2018-05-17

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