CN101018961A - 具有降低的活塞压力的液压链条张紧器 - Google Patents

具有降低的活塞压力的液压链条张紧器 Download PDF

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Publication number
CN101018961A
CN101018961A CNA200580030509XA CN200580030509A CN101018961A CN 101018961 A CN101018961 A CN 101018961A CN A200580030509X A CNA200580030509X A CN A200580030509XA CN 200580030509 A CN200580030509 A CN 200580030509A CN 101018961 A CN101018961 A CN 101018961A
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China
Prior art keywords
chain
fuel feeding
pressure
tensioning device
oil
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Pending
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CNA200580030509XA
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English (en)
Inventor
托马斯·乌莱因
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IHO Holding GmbH and Co KG
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FAG Kugelfischer AG and Co OHG
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Publication date
Application filed by FAG Kugelfischer AG and Co OHG filed Critical FAG Kugelfischer AG and Co OHG
Publication of CN101018961A publication Critical patent/CN101018961A/zh
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0806—Compression coil springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0812—Fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0812—Fluid pressure
    • F16H2007/0814—Fluid pressure with valves opening on surplus pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F16H2007/0859—Check valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

本发明涉及一种液压链条张紧器，其容纳逆弹簧支承的链条张紧器活塞(4)的高压室(3)与张紧器的供油室(2)连接，该供油室与发动机的油路连接，其中，在向链条张紧器的供油上，特别是在供油室(2)的壁上安装过压阀(8)，其打开压力与张紧器的期望供油压力相配合。

Description

具有降低的活塞压力的液压链条张紧器
技术领域
本发明涉及一种液压链条张紧器，其容纳逆弹簧支承的链条张紧器活塞的高压室与张紧器的供油室连接，该供油室与发动机的油路连接。
背景技术
链条张紧器通常特别是在冷发动机或者高转速情况下所供给的有时很高的供油压力影响链条张紧器活塞并导致链条张紧器活塞的预张力提高并因此造成平均更高的链条力。由此不仅提高传动装置上的摩擦并对噪声状态产生不利影响，而且还使磨损状态变得恶化。
随着链条花纹图形构成的日益增加，这些存在的问题更加突出，其中，特别值得关注的是额外还要增加链条长度。
虽然已经有人提出将发动机油路上的压力通过阀门限制在最大值上，但是该压力对链条张紧器来说仍然很高，因为油路上的常用压力处于5bar的数量级上，而为确保链条张紧器的功能0.5bar就已经足够。
发明内容
本发明的目的因此在于，这样构成开头所述类型的液压链条张紧器，使其在结构简单和运行可靠的情况下实现链条张紧器活塞较小的预张力。
该目的依据本发明由此得以实现，即在链条张紧器供油室的壁上安装过压阀，其打开压力与张紧器的期望供油压力相配合。
通过将张紧器供油室内的油压这样下调并恒定保持在低于发动机油路高油压的数值上，在活塞的压力室内也形成相应降低的油压，从而可以利用降低的链条张力进行工作。
在此方面特别具有优点的是过压阀这样构成和设置，使流出的油束用于润滑链条，从而在无附加特殊开支的情况下(用于润滑链条的喷油嘴迄今已经公知，但不能在本发明的意义上使用)可以利用仅一个设置达到两个目标，即一次将链条张紧器的供油压力下调到更低的恒定压力上并润滑链条。
在此方面，最后在本发明的框架内在发动机油路与张紧器的供油室之间的连接管道上安装节流阀，其中，最终是发动机侧具有节流阀还是安装在张紧器外壳上并无关紧要。通过该节流阀达到依据本发明的过压阀的功能不受来自发动机油路中的油方面过大供给的阻碍并最终不影响可靠性。
附图说明
本发明的其他优点、特征和细节来自下面借助附图所示的实施例的说明，该附图示出依据本发明液压链条张紧器的剖面图。
具体实施方式
在链条张紧器外壳1内设置供油室2，它与高压室3连接，里面支承链条张紧器活塞4附加通过螺旋压簧5预张紧。在链条张紧器活塞4由于链条传动装置内的张紧力提高而弹入的情况下，高压室3内的油首先作为弹出的因素使用，因为弹簧5对此强度不够。油从高压室3流出进入供油室2受到球阀6及阀座7的阻止。依据本发明供油室具有过压阀8，该阀穿过供油室2的壁并具有作为喷油嘴构成的油孔9，该油孔这样设置，使其用于润滑未示出的链条，该链条通过链条张紧器活塞4液压张紧。
附图中的10处表示与发动机油路的节流阀连接，也就是说，或者在张紧器外壳1上或者在发动机上或者在处于其间的连接位置上安装节流阀，防止从发动机油路向供油室2内过强供油，因此过压阀的功能不受过强再供油流的影响。
附图标记
1  链条张紧器外壳
2  供油室
3  高压室
4  链条张紧器活塞
5  螺旋压簧
6  球阀
7  阀座
8  过压阀
9  油孔
10 节流阀连接

Claims (3)

1.液压链条张紧器，其容纳逆弹簧支承的链条张紧器活塞的高压室与张紧器的供油室连接，该供油室与发动机的油路连接，其特征在于，在向链条张紧器的供油中，特别是在供油室(2)的壁上安装过压阀(8)，其打开压力与张紧器的期望供油压力相配合。
2.按权利要求1所述的链条张紧器，其中，过压阀(8)这样构成和设置，使流出的油束用于润滑链条。
3.按权利要求1或2所述的链条张紧器，其中，在发动机油路与张紧器的供油室(2)之间的连接管道上安装节流阀(10)。
CNA200580030509XA 2004-09-10 2005-08-11 具有降低的活塞压力的液压链条张紧器 Pending CN101018961A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004043727A DE102004043727A1 (de) 2004-09-10 2004-09-10 Hydraulischer Kettenspanner mit verringertem Kolbendruck
DE102004043727.0 2004-09-10

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CN101018961A true CN101018961A (zh) 2007-08-15

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US (1) US20080064546A1 (zh)
EP (1) EP1787044A1 (zh)
KR (1) KR20070048775A (zh)
CN (1) CN101018961A (zh)
DE (1) DE102004043727A1 (zh)
WO (1) WO2006027080A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829143A (zh) * 2011-06-16 2012-12-19 谢夫勒科技股份两合公司 应用于机动车中的链条张紧装置
CN105899850A (zh) * 2013-03-07 2016-08-24 博格华纳公司 具有弹簧力控制的张紧器
CN107110306A (zh) * 2014-12-29 2017-08-29 博格华纳公司 用于模块化液压张紧器的重量和成本优化的承载器
CN107110308A (zh) * 2015-01-16 2017-08-29 舍弗勒技术股份两合公司 用于链传动装置的张紧装置
US9879764B2 (en) 2011-09-22 2018-01-30 Borgwarner Inc. Chain drive tensioner spring force control mechanism
US10436291B2 (en) 2012-12-18 2019-10-08 Borgwarner Inc. Tensioner with spring force control in a second bore

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GB0607775D0 (en) * 2006-04-20 2006-05-31 Renold Plc Tensioner for a chain or belt
DE102006058429A1 (de) * 2006-12-12 2008-06-19 Schaeffler Kg Spritzdüse für einen Kettentrieb
DE102007036119A1 (de) 2007-01-27 2008-07-31 Schaeffler Kg Hydraulischer Kettenspanner für ein Zugmittelgetriebe mit einem Gussgehäuse
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KR102211909B1 (ko) * 2013-03-05 2021-02-08 보르그워너 인코퍼레이티드 체인 구동 텐셔너 스프링력 제어 메커니즘
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JP7053852B2 (ja) 2018-01-31 2022-04-12 ボーグワーナー インコーポレーテッド キャップディスクばねを備えた可変力テンショナアーム
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JP2023529930A (ja) * 2020-06-09 2023-07-12 アントニー， アシュリン チェーンドライブのチェーン内の弛みおよび振動を除去するための装置

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829143A (zh) * 2011-06-16 2012-12-19 谢夫勒科技股份两合公司 应用于机动车中的链条张紧装置
US10677325B2 (en) 2011-09-22 2020-06-09 Borgwarner Inc. Chain drive tensioner spring force control mechanism
US9879764B2 (en) 2011-09-22 2018-01-30 Borgwarner Inc. Chain drive tensioner spring force control mechanism
US10125849B2 (en) 2011-09-22 2018-11-13 Borgwarner Inc. Chain drive tensioner spring force control mechanism
US11078992B2 (en) 2011-09-22 2021-08-03 Borgwarner Inc. Chain drive tensioner spring force control mechanism
US10436291B2 (en) 2012-12-18 2019-10-08 Borgwarner Inc. Tensioner with spring force control in a second bore
US10612629B2 (en) 2012-12-18 2020-04-07 Borgwarner Inc. Tensioner with spring force control in a second bore
US11402000B2 (en) 2012-12-18 2022-08-02 Borgwarner Inc. Tensioner with spring force control in a second bore
US10077825B2 (en) 2013-03-07 2018-09-18 Borgwarner Inc. Tensioner with spring force control
CN105899850A (zh) * 2013-03-07 2016-08-24 博格华纳公司 具有弹簧力控制的张紧器
CN107110306A (zh) * 2014-12-29 2017-08-29 博格华纳公司 用于模块化液压张紧器的重量和成本优化的承载器
US10753435B2 (en) 2014-12-29 2020-08-25 Borgwarner Inc. Weight and cost optimized carrier for modular hydraulic tensioner
CN107110308A (zh) * 2015-01-16 2017-08-29 舍弗勒技术股份两合公司 用于链传动装置的张紧装置

Also Published As

Publication number Publication date
WO2006027080A1 (de) 2006-03-16
EP1787044A1 (de) 2007-05-23
KR20070048775A (ko) 2007-05-09
US20080064546A1 (en) 2008-03-13
DE102004043727A1 (de) 2006-03-16

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