公开(公告)号：US06089248A

公开(公告)日：2000-07-18

申请号：US212246

申请日：1998-12-16

申请人： Alvin S. Rost

发明人： Alvin S. Rost

IPC分类号： E02F9/22 ,  F15B11/16 ,  G05D7/00

CPC分类号： E02F9/2267 ,  E02F9/2225 ,  E02F9/2271 ,  E02F9/2296 ,  F15B11/165 ,  F04B2205/09 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/30505 ,  F15B2211/30555 ,  F15B2211/3127 ,  F15B2211/3144 ,  F15B2211/31576 ,  F15B2211/324 ,  F15B2211/6051 ,  F15B2211/6055 ,  F15B2211/653 ,  F15B2211/7054 ,  Y10T137/2587 ,  Y10T137/87185

摘要： DANA 90 A load sense pressure controller used with a hydraulic control valve such as a hydraulic direction control valve includes a body in the form of a barrel having a threaded first end and a threaded second end. An externally threaded first plug is threaded into the first end of the body and an externally threaded second plug is threaded into the second end of the body. Both first and second plugs each have passages therethrough wherein the passage through the first plug is connected to the load sense passage from a valve and the passage through the second plug is connected to a tank passage in the control valve. Disposed between the first and second plugs is a piston which is biased by a coil spring toward the first plug. The piston has a stepped axially extending passage extending therethrough which is intersected by a radially extending passage. The radially extending passage normally aligns with lateral openings in the body so that when there is a load sense condition, hydraulic fluid flows through lateral openings in the body to the return passage. If the load sense pressure exceeds a selected high pressure, then all of the load sense fluid is throttled through the pressure controlling orifice in the piston to the tank passage of the control valve.

摘要翻译： DANA 90与液压控制阀（例如液压方向控制阀）一起使用的负载感测压力控制器包括具有螺纹第一端和带螺纹第二端的筒体形式的主体。 外螺纹的第一塞子被拧入主体的第一端，并且外螺纹的第二塞子被拧入主体的第二端。 第一和第二插塞各自具有通过其中的通道，其中通过第一插塞的通道从阀连接到负载感测通道，并且通过第二插塞的通道连接到控制阀中的箱通道。 设置在第一和第二塞子之间的是由螺旋弹簧朝向第一塞子偏置的活塞。 活塞具有延伸穿过其中的阶梯状轴向延伸的通道，其与径向延伸的通道相交。 径向延伸的通道通常与主体中的侧向开口对准，使得当存在负载感测状态时，液压流体流过体内的侧向开口到返回通道。 如果负载感测压力超过所选择的高压，则所有负载感测流体通过活塞中的压力控制孔节流到控制阀的油箱通道。

公开(公告)号：US5458049A

公开(公告)日：1995-10-17

申请号：US252009

申请日：1994-05-31

申请人： Kevin L. Shinler ,  Alvin S. Rost

发明人： Kevin L. Shinler ,  Alvin S. Rost

IPC分类号： F16K3/24 ,  B30B9/30 ,  F15B13/04 ,  F15B13/042 ,  F16K31/124 ,  F15B11/00 ,  F15B13/00

CPC分类号： F15B13/0402 ,  F15B13/042

摘要： Material such as trash or refuse is packed in a container by opposed hydraulic packing and ejecting cylinders. Each cylinder is controlled by a hydraulic control valve with the control valve controlling the ejecting cylinder being, in effect, operated by the control valve for the packing cylinder. This is accomplished by sensing the pressure applied to the packing cylinder and when the pressure reaches a predetermined level, a pilot dump valve, in the ejecting cylinder is opened to allow the piston in the ejecting cylinder to retreat. When the pilot pressure drops below the predetermined level, the pilot dump valve closes, allowing the packing cylinder to exert additional packing force. In this way the piston in the ejecting cylinder inches back and the material is intermittently packed. An anti-cavitation check is provided so as to fill the chamber of the ejecting cylinder as the piston retracts.

摘要翻译： 诸如垃圾或垃圾的材料通过相对的液压包装和喷射瓶包装在容器中。 每个气缸由液压控制阀控制，控制喷射气缸的控制阀实际上由包装筒的控制阀操作。 这是通过感测施加到包装筒的压力来实现的，并且当压力达到预定水平时，打开排出气缸中的先导卸载阀，以允许排出缸中的活塞退回。 当先导压力下降到预定水平以下时，先导排放阀关闭，允许包装缸施加额外的包装力。 以这种方式，喷射缸中的活塞向后翻并且材料被间歇地包装。 提供防空穴检查，以便当活塞缩回时填充排出筒的腔室。

公开(公告)号：US5454223A

公开(公告)日：1995-10-03

申请号：US68675

申请日：1993-05-28

申请人： Donald W. Tschida ,  Alvin S. Rost

发明人： Donald W. Tschida ,  Alvin S. Rost

IPC分类号： F04B23/00 ,  F04B49/08 ,  F15B11/00 ,  G05D16/18 ,  F16D31/02 ,  F16K17/04

CPC分类号： F04B49/08 ,  F04B2201/1204 ,  Y10T137/7847 ,  Y10T137/87185

摘要： An improvement in and method of operating a load sensing system in which a variable displacement, pressure compensated pump delivering hydraulic fluid to a fluid operating device through a directional control valve is controlled by a load-sensing system pressure limiter which is set so that the system operates at the maximum continuous system operating pressure. By also setting pump destroke pressure slightly higher than the necessary operating pressure for the load, optimum performance of the pump is realized. The load-sensing system pressure limiter is configured as a poppet which is placed inside of the body of the directional control valve and is biased by an adjustable spring force to the closed position. Preferably, the poppet connects the load sensing core of the directional control valve to an exhaust passage therein so as to require minimal modification of the directional control valve. In a preferred embodiment, the poppet has a bleed-down orifice extending therethrough to unload the load pressure signal when work has been completed or diminished.

摘要翻译： 负载感测系统的改进和操作方法，其中通过负载感测系统压力限制器控制将液压流体通过方向控制阀输送到流体操作装置的可变位移压力补偿泵，其被设置为使得系统 以最大连续系统工作压力运行。 通过将泵的怠速压力设置为稍高于负载所需的工作压力，实现了泵的最佳性能。 负载感测系统压力限制器被配置为提升阀，该提升阀被放置在方向控制阀的主体内部并被可调节的弹簧力偏压到关闭位置。 优选地，提升阀将方向控制阀的负载感测芯连接到其中的排气通道，以便对方向控制阀进行最小的修改。 在优选实施例中，当工作完成或减少时，提升阀具有延伸穿过其中的卸载孔以卸载负载压力信号。

公开(公告)号：US5313983A

公开(公告)日：1994-05-24

申请号：US37824

申请日：1993-03-29

申请人： Alvin S. Rost ,  John M. Schurman

发明人： Alvin S. Rost ,  John M. Schurman

IPC分类号： F15B11/08 ,  F15B13/042 ,  F15B21/04

CPC分类号： F15B13/0422 ,  Y10T137/86582

摘要： Response times for a remote hydraulic control system having control lines from a remote controller to a main control valve of 50 feet or more are reduced by providing actuator pistons which are operated at a second pilot hydraulic pressure less than a first pilot hydraulic pressure used for moving a valve spool within the main control valve. The actuator pistons open valves which allow hydraulic fluid at the higher pilot pressure to push the valve spool. "Off" times are further reduced by continuously bleeding off a portion of the hydraulic fluid applied to the actuator pistons at the second hydraulic pressure.

摘要翻译： 具有从遥控器到50英尺或更大的主控制阀的控制线的遥控液压控制系统的响应时间通过提供致动器活塞而减少，所述致动器活塞在小于用于移动的第一先导液压的第二先导液压下操作 在主控制阀内的阀芯。 致动器活塞打开阀，其允许在较高先导压力下的液压流体推动阀芯。 通过在第二液压下连续地渗出施加到致动器活塞的液压流体的一部分，进一步减少“关闭”时间。