CN108713111A - 对频率依赖阀的改进 - Google Patents

对频率依赖阀的改进 Download PDF

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CN108713111A
CN108713111A CN201780014502.1A CN201780014502A CN108713111A CN 108713111 A CN108713111 A CN 108713111A CN 201780014502 A CN201780014502 A CN 201780014502A CN 108713111 A CN108713111 A CN 108713111A
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valve
valve module
balancing gate
gate pit
spring element
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闫石
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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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3488—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features intended to affect valve bias or pre-stress
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve elements
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/04—Frequency effects
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06—Stiffness
    • F16F2228/066—Variable stiffness

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Safety Valves (AREA)

Abstract

一种阀(1)，包括：压力室(300)；控制流体(150)的通路的阀组件(100)，该阀组件(100)被构造成使得其预紧力由压力室(300)控制；弹簧元件(370)，该弹簧元件帮助阀组件(100)对抗压力室(300)的容积变化，其预紧力也由压力室(300)控制；其特征在于：对于压力室(300)的给定的容积变化，来自弹簧元件(370)的反作用力比阀组件(100)的反作用力变化快。

Description

对频率依赖阀的改进
技术领域
本公开内容涉及可以适于用在悬架***诸如用于运输车辆的***中的液压减震器和阻尼器。更特别地，本公开内容涉及一种当经受不同频率的输入时提供不同的阻尼特性的频率依赖阀。
背景技术
频率依赖阀诸如WO03040586、WO2015130544、WO2015030884中描述的那些通常包括压力室，压力室的容积变化与对流体流进行节流的阀组件上的预紧力变化相关。通常，引起阀组件的预紧力增加的移动多半地受到来自阀组件自身的反作用力的对抗，但这有时会在阻尼器行程期间引起压降的急剧变化，而这是不期望的。
发明内容
本发明根据本公开内容所附的权利要求解决了上述所有问题。
附图说明
附图包括：
图1示出了对根据本发明的阀的功能进行说明的图。
图2示出了对关于图1所描绘的阀的替代功能进行说明的图，具有一些额外的可选元件。
图3示出了本发明的第一实施方式
图4示出了本发明的第二实施方式
图5示出了本发明的第三实施方式
图6示出了本发明的第四实施方式
附图标记
1：频率依赖阀
10：活塞
11：流动通道
30：活塞杆
100：阀组件
150：流体流
300：压力室
301：室壁
370：弹簧元件
380：限流器
390：止回阀
具体实施方式
下文对优选实施方式的描述本质上仅为示例性的，并不意在限制本公开内容、其应用或使用。凡在不同附图上出现的相同附图标记，该相同附图标记在所有不同附图中指代类似或对应部分。
图1示出了对根据本发明的阀的功能进行说明的图：
一种阀(1)，包括：
压力室(300)；
控制流体(150)的通路的阀组件(100)，阀组件(100)被构造成使得其预紧力由压力室(300)控制；
帮助阀组件(100)对抗压力室(300)的容积变化的弹簧元件(370)，其预紧力也由压力室(300)控制；
其特征在于：
对于压力室(300)的给定的容积变化，来自弹簧元件(370)的反作用力比阀组件(100)的反作用力变化快。
当压力室(300)膨胀时，室壁(301)变形和/或朝向主阀组件(100)移动。结果，主阀组件(100)受到来自压力室(300)的预紧力，与此同时，主阀组件(100)向压力室(300)施加相同大小的反作用力，对抗其膨胀。
为了改善频率依赖性能，有利的是设置弹簧元件(370)，该弹簧元件可以被调谐以帮助使压力室(300)比没有帮助元件(370)的情况更快地恢复到其静止容积。帮助元件(370)施加额外的力，对抗压力室(300)的容积变化，这在不增加阀组件(100)上的预紧力的情况下这样做。
图2示出了对关于图1所描绘的阀的替代功能进行说明的图，具有一些额外的可选元件。限流器(380)使去往压力室(300)的流体流减速，止回阀(390)允许流体快速离开压力室(300)。
图3至图4示出了对应于图2的图的实施方式的结构图示：
一种阀(1)，包括：
压力室(300)；
控制流体(150)的通路的阀组件(100)，阀组件(100)被构造成使得其预紧力由压力室(300)控制；
帮助阀组件(100)对抗压力室(300)的容积变化的弹簧元件(370)，其预紧力也由压力室(300)控制；
其特征在于：
对于压力室(300)的给定的容积变化，来自弹簧元件(370)的反作用力比阀组件(100)的反作用力变化快。
此外，在图3和图4中：
所述压力室(300)包括可移动和/或可变形的室壁(301)，
所述弹簧元件(370)被构造成对抗所述室壁(301)的造成所述阀组件(100)的预紧力增加的移动或变形；
所述弹簧元件(370)在刚度上比所述阀组件(100)高。
图3示出了本发明应用于WO2015030884描述的阀的实施方式。在该阀(1)中，室壁(301)朝向阀组件(100)的移动使压力室(300)的容积缩小并对阀组件(100)施加预紧力，使得阀组件加强对流体流(150)的节流。弹簧元件(370)帮助阀组件(100)对抗压力室(300)的容积变化。
图4示出了本发明应用于WO03040586描述的阀的实施方式。在该阀(1)中，室壁(301)朝向阀组件(100)的移动使压力室(300)的容积增加并对阀组件(100)施加预紧力，使得阀组件加强对流体流(150)的节流。弹簧元件(370)帮助阀组件(100)对抗压力室(300)的容积变化。
图5示出了本发明应用于BE2016/0014描述的阀的实施方式。在该阀(1)中，活塞(10)能在活塞杆(30)上滑动。然而，阀组件(100)相对于活塞杆(30)固定在其中心。因此，活塞(10)相对于活塞杆(30)的移动改变阀组件(100)上的预紧力，使得阀组件加强对流体流(150)的节流。活塞(10)的移动由压力室(300)控制，使得压力室(300)的容积变化引起阀组件(100)的预紧力变化。弹簧元件(370)帮助阀组件(100)对抗压力室(300)的容积变化，并由此对抗活塞(10)的移动。
图6示出了本发明应用于BE2016/0013描述的阀的实施方式。在该阀(1)中，室壁(301)朝向阀组件(100)的移动使压力室(300)的容积增加并对阀组件(100)施加预紧力，使得阀组件加强对流体流(150)的节流。弹簧元件(370)帮助阀组件(100)对抗压力室(300)的容积变化。在这种情况下，弹簧元件(370)为室壁本身(301)，被构造成使得对于压力室(300)的给定的容积变化，来自弹簧元件(370)的反作用力比阀组件(100)的反作用力变化快。
虽然已参照实施方式对本发明进行了描述，但本领域技术人员明白，按照所附权利要求的限定，可以做出各种变化和修改。

Claims (3)

1.一种阀(1)，包括：
压力室(300)；
控制流体(150)的通路的阀组件(100)，所述阀组件(100)被构造成使得所述阀组件的预紧力由所述压力室(300)控制；
弹簧元件(370)，所述弹簧元件帮助所述阀组件(100)对抗所述压力室(300)的容积变化，所述弹簧元件的预紧力也由所述压力室(300)控制；
其特征在于：
对于所述压力室(300)的给定的容积变化，来自所述弹簧元件(370)的反作用力比所述阀组件(100)的反作用力变化快。
2.根据权利要求1所述的阀(1)，
其特征在于：
所述压力室(300)包括能移动和/或能变形的室壁(301)，
所述弹簧元件(370)被构造成对抗所述室壁(301)的引起所述阀组件(100)的预紧力增加的移动或变形。
3.根据前述权利要求中的一项所述的阀(1)，
其特征在于：
所述弹簧元件(370)在刚度上比所述阀组件(100)高。
CN201780014502.1A 2016-01-03 2017-01-03 对频率依赖阀的改进 Pending CN108713111A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2016/0014A BE1023716B1 (nl) 2016-01-03 2016-01-03 Frequentie afhankelijke schokdemper
BEBE2016/0014 2016-01-03
PCT/BE2017/000005 WO2017112981A1 (en) 2016-01-03 2017-01-03 Improvement to frequency dependent valves

Publications (1)

Publication Number Publication Date
CN108713111A true CN108713111A (zh) 2018-10-26

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US (2) US10907699B2 (zh)
EP (1) EP3397874B1 (zh)
CN (1) CN108713111A (zh)
BE (2) BE1023716B1 (zh)
WO (2) WO2017112980A1 (zh)

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