CN111306349A - 油控制阀 - Google Patents

油控制阀 Download PDF

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Publication number
CN111306349A
CN111306349A CN201910902276.1A CN201910902276A CN111306349A CN 111306349 A CN111306349 A CN 111306349A CN 201910902276 A CN201910902276 A CN 201910902276A CN 111306349 A CN111306349 A CN 111306349A
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control valve
frame
communication hole
oil control
oil
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崔命植
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Hyundai Motor Co
Kia Corp
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Hyundai Motor Co
Kia Motors Corp
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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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • 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
    • F01L13/0042—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 being 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
    • 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
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34459—Locking in multiple positions
    • 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
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34469—Lock movement parallel to camshaft axis
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/033—Hydraulic engines

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

Abstract

本公开提供一种油控制阀，控制第一液压室和第二液压室的油压，第一液压室和第二液压室分别形成在第一电动液压阀(EHV)装置和第二EHV装置内，第一EHV装置和第二EHV装置分别由第一凸轮和第二凸轮驱动且第一阀和第二阀分别连接到第一EHV装置和第二EHV装置的下部，油控制阀包括：主体，包括连通孔，连通孔具有与第一液压室连通的第一端和与第二液压室连通的第二端；中空下框架，形成或固定地安装在主体的下端部，上端高度设置在连通孔的内部空间而上部与连通孔连通且下部与供应油的油道连通；及销框架，设置在上下移动的致动器和下框架之间，以垂直穿过连通孔并与下框架的上端接触或分离，当销框架和下框架彼此接触时，连通孔的第一端和第二端彼此不连通。

Description

油控制阀
相关申请的交叉引用
本申请要求2018年12月11日向韩国知识产权局提交的申请号为10-2018-0159341的韩国专利申请的优先权和权益，该韩国专利申请的全部内容通过引用并入本文。
技术领域
本公开涉及一种油控制阀(OCV)。更具体地，本公开涉及一种防止相同类型的两个阀之间发生升程偏差的油控制阀。
背景技术
可变阀控制技术是一个用于提高车辆发动机的效率的领域。
通常，通过凸轮的形状和凸轮之间的相位差来调节阀的打开和关闭正时以控制发动机的进气和排气。
可变阀正时(VVT)装置调节阀的打开和关闭正时以控制进气阀和排气阀同时打开的重叠部分，并且可变阀升程(VVL)装置调节阀升程以控制进气量。
随着VVT装置演变成连续可变阀正时(CVVT)装置，VVL装置演变成连续可变阀升程(CVVL)装置，并且机械电动液压阀机构(MEHV)装置已经被开发并且积极应用于车辆发动机。
MEHV装置是机械阀机构和电动液压阀(EHV)装置的组合，并且通过使用油压来控制阀升程。
通常，MEHV装置通过使用一个油控制阀(OCV)操作具有相同结构的两个电动液压阀(EHV)装置以及分别连接到所述装置的相同类型(进气或排气)的两个阀。
EHV装置通常由机械凸轮驱动，并且液压室形成在EHV装置中，且当油通过OCV供应到液压室或从液压室排出时，控制凸轮的驱动效果。也就是说，如果在足够的油被供应到EHV装置的状态下凸轮驱动EHV装置，则连接到EHV装置的阀操作，导致阀升程。然而，如果在油从EHV装置排出的状态下凸轮驱动EHV装置，则连接到EHV装置的阀不操作。
传统的MEHV装置使用OCV，该OCV被配置为允许两个EHV装置彼此连通以平稳地供应油。因此，当两个EHV装置之间存在油压差时，两个EHV装置之间可能发生油脉动，因此分别连接到两个EHV装置的两个阀之间出现升程偏差。
图5是示出当应用传统的油控制阀时根据凸轮角度的阀升程的曲线图。
参照图5，左阀和右阀之间出现升程偏差。在这种状态下，可能发生发动机汽缸之间的燃烧不平衡，并且燃料效率、排放或爆震特性可能劣化。
该背景技术部分中公开的上述信息仅用于增强对本发明的背景的理解，因此上述信息可能包含不构成本领域技术人员已知的现有技术的信息。
发明内容
本公开提供一种用于防止两个阀之间的升程偏差的油控制阀。
本公开提供一种油控制阀，油控制阀控制第一液压室和第二液压室的油压，第一液压室和第二液压室分别形成在第一电动液压阀(EHV)装置和第二电动液压阀(EHV)装置内，第一EHV装置和第二EHV装置分别由第一凸轮和第二凸轮驱动并且第一阀和第二阀分别连接到第一EHV装置和第二EHV装置的下部，油控制阀可以包括：主体，包括连通孔，并且连通孔具有与第一液压室连通的第一端和与第二液压室连通的第二端；中空下框架，形成或固定地安装在主体的下端部，并且上端高度设置在连通孔的内部空间从而上部与连通孔连通并且下部与供应油的油道连通；以及销框架，设置在上下移动的致动器和中空下框架之间，以垂直地穿过连通孔并与中空下框架的上端接触或分离，其中当销框架和中空下框架彼此接触时，连通孔的第一端和第二端彼此不连通。
销框架可以是中空的，并且油控制阀可以进一步包括弹簧，弹簧由于上端连接到销框架的上部并且下端连接到形成在中空下框架的内部空间中的支撑部，从而向销框架施加恢复力。
致动器可以通过螺线管上下操作。
销框架可以与致动器的下端部一体地形成。
下框架、连通孔和销框架分别可以具有圆柱形状，并且下框架和销框架的直径可以大于连通孔的直径。
可以在销框架上沿销框架的下端的外周表面形成倒角，并且可以在下框架的上端形成倒角面，以通过与倒角配合来保持固定状态和气密状态。
在根据本公开的示例性实施例的油控制阀中，当销框架与下框架分离时，由于油从第一EHV装置和第二EHV装置排出，因此尽管第一凸轮和第二凸***作，第一阀和第二阀也可以不操作。
在油控制阀中，当销框架与下框架接触时，第一阀和第二阀可以通过第一凸轮和第二凸轮的操作而操作。
如上所述，根据本公开，由于两个阀之间的升程曲线彼此相同，因此可以改进燃料效率和排放，并且可以减少爆震的发生。
附图说明
图1是根据本公开的示例性实施例的安装有油控制阀的阀机构结构的示意图。
图2是根据本公开的示例性实施例的安装有油控制阀的阀机构结构的侧视图。
图3是根据本公开的示例性实施例的油控制阀的沿线A-A的截面图。
图4是根据本公开的示例性实施例的油控制阀的沿B-B线的截面图。
图5是示出当应用传统的油控制阀时根据凸轮角度的阀升程的曲线图。
图6是示出当应用根据本公开的示例性实施例的油控制阀时根据凸轮角度的阀升程的曲线图。
具体实施方式
下面将参照附图更全面地描述本公开，附图中示出了本公开的示例性实施例。
示例性实施例是本公开的示例，并且可以由本领域技术人员以各种方式进行修改，因此本公开的范围不限于下面将描述的示例性实施例。
通过本说明书，除非另有明确说明，否则“包括”任何组件将被理解为暗含包括其他组件而不排除任何其他组件。此外，组件的名称不限制其功能。
图1是根据本公开的示例性实施例的安装有油控制阀的阀机构结构的示意图。
图2是根据本公开的示例性实施例的安装有油控制阀的阀机构结构的侧视图。
参照图1和图2，根据示例性实施例的油控制阀10被配置为控制分别形成在第一电动液压阀(EHV)装置21和第二电动液压阀(EHV)装置22内的第一液压室21a和第二液压室22a的油压。第一EHV装置21和第二EHV装置22分别由第一凸轮1和第二凸轮2驱动，并且第一阀3和第二阀4分别连接到第一EHV装置21和第二EHV装置22的下部。因此，第一阀3和第二阀4的操作由油控制阀10控制。
油控制阀10可以包括：主体30，包括连通孔312，并且连通孔312包括与第一液压室21a连通的第一端31和与第二液压室22a连通的第二端32；中空下框架40，形成或固定地安装在主体30的下端部，并且上端高度设置在连通孔312的内部空间从而上部与连通孔312连通并且下部与供应油的油道34连通；以及销框架50，设置在上下移动的致动器15和下框架40之间，以垂直地穿过连通孔312并与下框架40的上端接触或分离。
油控制阀10被配置为当销框架50和下框架40彼此接触时，连通孔312的第一端31和第二端32彼此不连通。也就是说，第一端31和第二端32被下框架40和销框架50挡住。
为此，下框架40、连通孔312和销框架50可以分别具有圆柱形状，并且下框架40和销框架50可以具有比连通孔312的直径更大的直径。然而，示例性实施例不限于此，并且在下框架40和销框架50接触时，只要下框架40和销框架50挡住连通孔312的内部使得连通孔312的第一端31和第二端32彼此不连通，则允许任何结构。
第一液压室21a和连通孔312的第一端31可以通过左管5连通，并且第二液压室22a和连通孔312的第二端32可以通过右管6连通。在这种情况下，左管5和右管6可以形成在汽缸盖7中。油控制阀10通常安装在汽缸盖7上。
第一液压室21a和第二液压室22a分别形成在第一EHV装置21和第二EHV装置22中的机构对于本领域技术人员是公知的，因此省略详细描述。
当销框架50与下框架40的上端分离时，第一EHV装置21和第二EHV装置22可以通过第一液压室21a和第二液压室22a、左管5和右管6以及连通孔312彼此连通。
而且，参照图2，安装有根据示例性实施例的油控制阀10的阀机构结构可以进一步包括形成在汽缸盖7中的储液器25。在这种情况下，当油控制阀10打开时，即，当销框架50与下框架40分离时，阀机构结构可以形成为使得第一EHV装置21和第二EHV装置22中的油可以累积在储液器25中。通过油流到储液器25，尽管第一凸轮1和第二凸轮2操作，第一阀3和第二阀4也关闭。
参照图1，在根据示例性实施例的油控制阀10中，销框架50可以是中空的。而且，油控制阀10可以进一步包括弹簧60，弹簧60由于上端连接到销框架50的上部并且下端连接到形成在下框架40的内部空间中的支撑部35，从而向销框架50施加恢复力。
设置在油控制阀10内的致动器15可以通过螺线管(solenoid)上下操作。在这种情况下，当电流施加到油控制阀10时，致动器15向上或向下操作。
因此，当致动器15向下操作使得销框架50与下框架40接触时，弹簧60可以被压缩，并且当致动器15向上操作使得销框架50与下框架40分离时，弹簧60可以伸长。当施加到油控制阀10的电流断开时，销框架50可以通过压缩或伸长的弹簧60的恢复力返回到销框架50的初始位置。
销框架50可以与致动器15的下端一体地形成，但不一定如此。销框架50可以是与致动器15分离的部件。销框架50可以通过致动器15和弹簧60选择性地与下框架40接触或分离。
图3是根据本公开的示例性实施例的油控制阀的沿线A-A的截面图。
图4是根据本公开的示例性实施例的油控制阀的沿B-B线的截面图。
参照图3和图4，在根据本公开的示例性实施例的油控制阀10中，倒角52可以在销框架50上沿销框架50的下端的外周表面形成，并且倒角面42可以在下框架40的上端形成，以通过与倒角52配合来保持固定状态和气密状态。倒角52和倒角面42的组合可以确保实现销框架50和下框架40的固定状态以及连通孔312的第一端和第二端之间的气密状态。
图3和图4都示出了下框架40和销框架50彼此分离的状态。可以通过该分离间隙和连通孔312将油供应到第一EHV装置21和第二EHV装置22，或者可以将油从第一EHV装置21和第二EHV装置22排出到储液器25。
参照图1、图3和图4，根据本公开的示例性实施例的油控制阀10被配置为使得当销框架50与下框架40分离时，由于油从第一EHV装置21和第二EHV装置22排出，因此尽管第一凸轮1和第二凸轮2操作，第一阀3和第二阀4也不操作。
油控制阀10被配置为使得当销框架50与下框架40接触时，第一阀3和第二阀4通过第一凸轮1和第二凸轮2的操作而操作。
图6是示出当应用根据本公开的示例性实施例的油控制阀时根据凸轮角度的阀升程的曲线图。
参照图6，如果使用油控制阀10，则可以确认第一阀3和第二阀4的升程基本一致。这是因为当连通孔312未被下框架40和销框架50挡住时，第一EHV装置21和第二EHV装置22彼此连通，使得压力变得相等，并且在挡住的情况下，第一EHV装置21和第二EHV装置22在相同的压力下彼此流体分离并且独立地操作。
虽然已经结合目前认为是实用示例性实施例的内容描述了本公开，但是将理解的是，本公开不限于所公开的实施例。相反地，本公开旨在涵盖包括在所附权利要求的思想和范围内的各种修改和等同布置。

Claims (8)

1.一种油控制阀，所述油控制阀控制第一液压室和第二液压室的油压，所述第一液压室和所述第二液压室分别形成在第一电动液压阀装置即第一EHV装置和第二电动液压阀装置即第二EHV装置内，所述第一EHV装置和所述第二EHV装置分别由第一凸轮和第二凸轮驱动并且第一阀和第二阀分别连接到所述第一EHV装置和所述第二EHV装置的下部，所述油控制阀包括：
主体，包括连通孔，并且所述连通孔具有与所述第一液压室连通的第一端和与所述第二液压室连通的第二端；
中空下框架，形成或固定地安装在所述主体的下端部，并且上端高度设置在所述连通孔的内部空间从而上部与所述连通孔连通并且下部与供应油的油道连通；以及
销框架，设置在上下移动的致动器和所述中空下框架之间，以垂直地穿过所述连通孔并与所述中空下框架的上端接触或分离，
其中当所述销框架和所述中空下框架彼此接触时，所述连通孔的第一端和第二端彼此不连通。
2.根据权利要求1所述的油控制阀，其中，
所述销框架是中空的，并且
所述油控制阀进一步包括弹簧，所述弹簧由于上端连接到所述销框架的上部并且下端连接到形成在所述中空下框架的内部空间中的支撑部，从而向所述销框架施加恢复力。
3.根据权利要求1所述的油控制阀，其中，
所述致动器通过螺线管上下操作。
4.根据权利要求1所述的油控制阀，其中，
所述销框架与所述致动器的下端部一体地形成。
5.根据权利要求1所述的油控制阀，其中，
所述中空下框架、所述连通孔和所述销框架分别具有圆柱形状，并且所述中空下框架和所述销框架的直径大于所述连通孔的直径。
6.根据权利要求1所述的油控制阀，其中，
在销框架上沿所述销框架的下端的外周表面形成倒角，并且
在所述下框架的上端形成倒角面，以通过与所述倒角配合来保持固定状态和气密状态。
7.根据权利要求1所述的油控制阀，其中，
当所述销框架与所述中空下框架分离时，由于油从所述第一EHV装置和所述第二EHV装置排出，因此尽管所述第一凸轮和所述第二凸***作，所述第一阀和所述第二阀也不操作。
8.根据权利要求1所述的油控制阀，其中，
当所述销框架与所述中空下框架接触时，所述第一阀和所述第二阀通过所述第一凸轮和所述第二凸轮的操作而操作。
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