会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • A HYDRAULIC ACTUATOR FOR A SERVOMOTOR WITH AN END LOCK FUNCTION
    • 一种具有端锁功能的伺服电机的液压执行器
    • WO2008095499A1
    • 2008-08-14
    • PCT/DK2008/000061
    • 2008-02-07
    • SAUER-DANFOSS APSNIELSEN, BrianPLOUG, OlePATTERSON, Chad, M.
    • NIELSEN, BrianPLOUG, OlePATTERSON, Chad, M.
    • F15B11/00F15B20/00B62D5/08F16H61/42
    • F15B11/006F15B11/003F15B20/002F15B20/008F15B2211/30505F15B2211/30575F15B2211/40507F15B2211/7653F15B2211/8755F16H61/433
    • A hydraulic actuator for a hydraulic servomotor (4) is disclosed. The hydraulic servomotor (4) is of a kind having at least one defined end position, and has a first chamber (5) and a second chamber (6) associated therewith. The actuator is connected to a fluid source (2) and a fluid drain (3). The actuator comprises a first valve (7) fluidly connected between the fluid source (2) and the first chamber (5), a second valve (8) fluidly connected between the first chamber (5) and the fluid drain (3), and a third valve (9) fluidly connected between the fluid source (2) and the second chamber (6). The actuator further comprises a flow channel (10, 17), preferably comprising a flow restrictor (12, 18), in fluid communication with the second chamber (6). The valves (7, 8, 9) are such that, in the case of a power cut off, they will prevent a fluid flow out of the first chamber (5), and a fluid flow out of the second chamber (6) takes place via the flow channel (10, 17). This will cause a servomotor piston member (13) to move towards the second chamber (6), thereby moving the hydraulic servomotor (4) to an end position.
    • 公开了一种用于液压伺服电动机(4)的液压致动器。 液压伺服电动机(4)具有至少一个限定的端部位置,并且具有与其相关联的第一室(5)和第二室(6)。 致动器连接到流体源(2)和流体排放(3)。 致动器包括流体连接在流体源(2)和第一腔室(5)之间的第一阀门(7),流体连接在第一腔室(5)和流体排出口(3)之间的第二阀门(8),以及 流体连接在流体源(2)和第二室(6)之间的第三阀(9)。 致动器还包括流动通道(10,17),优选地包括与第二腔室(6)流体连通的限流器(12,18)。 阀(7,8,9)使得在断电的情况下,它们将防止流体从第一腔室(5)流出,并且流出第二腔室(6)的流体 通过流动通道(10,17)放置。 这将使伺服马达活塞构件(13)朝向第二腔室(6)移动,从而将液压伺服马达(4)移动到结束位置。
    • 2. 发明申请
    • A HYDRAULIC ACTUATOR HAVING AN AUXILIARY VALVE
    • 具有辅助阀的液压执行机构
    • WO2008095497A1
    • 2008-08-14
    • PCT/DK2008/000059
    • 2008-02-07
    • SAUER-DANFOSS APSNIELSEN, Brian
    • NIELSEN, Brian
    • F15B20/00B62D5/08F16H61/42F15B11/00
    • F15B11/003F15B11/006F15B20/002F15B20/008F15B2211/30505F15B2211/30575F15B2211/328F15B2211/6333F15B2211/6652F15B2211/6656F16H61/433
    • A hydraulic actuator for a hydraulic servomotor (4) is disclosed. The hydraulic servomotor (4) has a first chamber (5) and a second chamber (6) associated therewith. The hydraulic actuator is connected to a fluid source (2) and a fluid drain (3), and it comprises a valve assembly arranged between the fluid source (2) and the fluid drain (3) to control fluid pressures in the chambers (5, 6). At least one auxiliary valve (11) is fluidly connected between the valve assembly and the fluid drain (3), said auxiliary valve(s) (11) being of a kind which is normally closed in a de-energized state. In the case of a power cut off the auxiliary valve(s) (11) will close, thereby preventing fluid flow from the valve assembly towards the fluid drain (3). This causes a servomotor piston member (12) to be hydraulically locked in its instantaneous position, thereby locking the hydraulic servomotor (4). The valve assembly may be designed without taking the locking function into consideration.
    • 公开了一种用于液压伺服电动机(4)的液压致动器。 液压伺服电动机(4)具有与其相关联的第一室(5)和第二室(6)。 液压致动器连接到流体源(2)和流体排放(3),并且其包括布置在流体源(2)和流体排放口(3)之间的阀组件,以控制腔室(5)中的流体压力 ,6)。 至少一个辅助阀(11)流体连接在阀组件和流体排放口(3)之间,所述辅助阀(11)是处于断电状态的常闭状态。 在断电的情况下,辅助阀(11)将关闭,从而防止流体从阀组件流向流体排出口(3)。 这使得伺服电机活塞构件(12)被液压地锁定在其瞬时位置,从而锁定液压伺服电动机(4)。 可以设计阀组件而不考虑锁定功能。
    • 3. 发明申请
    • A VALVE ASSEMBLY AND A HYDRAULIC ACTUATOR COMPRISING THE VALVE ASSEMBLY
    • 阀组件和包括阀组件的液压执行器
    • WO2008095498A1
    • 2008-08-14
    • PCT/DK2008/000060
    • 2008-02-07
    • SAUER-DANFOSS APSNIELSEN, Brian
    • NIELSEN, Brian
    • F15B20/00B62D5/08F16H61/42
    • F15B11/003F15B11/006F15B20/002F15B20/008F15B2211/30505F15B2211/30575F15B2211/328F15B2211/6333F15B2211/6652F15B2211/6656F16H61/433
    • A valve assembly (2) forming a bridge circuit and a hydraulic actuator comprising at least one valve assembly (2) are disclosed. The valve assembly (2) is fluidly connectable between a fluid source (3) and a fluid drain (4). The valve assembly (2) comprises a first valve (8) fluidly connected between the fluid source (3) and a first diagonal point (12) of the bridge circuit, a second valve (9) fluidly connected between the fluid source (3) and a second diagonal point (13) of the bridge circuit, a third valve (10) fluidly connected between the first diagonal point (12) and the fluid drain (4), and a fourth valve (11) fluidly connected between the second diagonal point (13) and the fluid drain (4). The valves (8, 9, 10, 11) are such that in the case of a power cut off, flows of fluid away from the diagonal points (12, 13) are prevented. Thereby a hydraulic servomotor (5) connected across the diagonal points (12, 13) will be hydraulically locked in its instantaneous position, and a safety feature is accordingly provided. The first valve (8) and the second valve (9) are furthermore of a kind which is closed in an energized state. Thereby it is possible to control the valve assembly (2) in such a manner that a piston member (14) of a servomotor (5) connected across the diagonal points (12, 13) can be moved at a high velocity, thereby providing a servomotor (5) having a quick response time.
    • 公开了形成桥接电路的阀组件(2)和包括至少一个阀组件(2)的液压致动器。 阀组件(2)可流体地连接在流体源(3)和流体排放口(4)之间。 阀组件(2)包括流体连接在流体源(3)和桥接电路的第一对角线点(12)之间的第一阀(8),流体连接在流体源(3)之间的第二阀(9) 和桥接电路的第二对角点(13),流体连接在第一对角点(12)和流体排放口(4)之间的第三阀(10)和流体连接在第二对角线 点(13)和流体排出口(4)。 阀(8,9,10,11)使得在断电的情况下,防止流体离开对角线点(12,13)。 由此,连接在对角点(12,13)上的液压伺服电动机(5)将被液压地锁定在其瞬时位置,并且因此提供安全特征。 此外,第一阀(8)和第二阀(9)处于通电状态下是闭合的。 因此,可以以这样的方式控制阀组件(2),使得能够以高速度移动跨越对角线点(12,13)的伺服电动机(5)的活塞构件(14),从而提供 伺服电机(5)具有快速响应时间。