Hydraulic brake valve system
    1.
    发明授权
    Hydraulic brake valve system 失效
    液压制动阀系统

    公开(公告)号:US4520625A

    公开(公告)日:1985-06-04

    申请号:US471341

    申请日:1983-03-02

    摘要: A hydraulic brake valve system for use in a hydraulic circuit consisting of driving and braking fluid lines and including therein at least a hydraulic motor for the actuation of an inertia body such as, for example, a construction vehicle or work implements thereof has a counterbalance valve, a cross-over safety valve, a drain change-over valve and a timer valve. The cross-over safety valve consists of two common relief valves, each having two pressure receiving surfaces and adapted to relieve pressurized fluid acted on one of the pressure receiving surfaces at a low pressure and relieve pressurized fluid acted on the other pressure receiving surface at a high pressure, wherein the first port of one of said relief valves is connected with said driving fluid line and the second port thereof is connected with said braking fluid line, whilst the first port of the other relief valve is connected with said braking fluid line and the second port thereof is connected with said driving fluid line.

    摘要翻译: 一种用于由驱动和制动流体管线组成的液压回路的液压制动阀系统,其中至少包括用于致动诸如施工车辆或其工具的惯性体的液压马达具有平衡阀 ,交叉安全阀,排水转换阀和定时阀。 交叉安全阀由两个共同的安全阀组成,每个安全阀具有两个压力接收表面,并且适于在低压下减轻作用在压力接收表面之一上的加压流体,并且在一个压力接收表面上减轻作用在另一压力接收表面上的加压流体 其中一个所述安全阀的第一端口与所述驱动流体管线连接,并且其第二端口与所述制动流体管线连接,而另一泄压阀的第一端口与所述制动流体管线相连接, 其第二端口与所述驱动流体管线连接。

    Flow divider valve assembly
    2.
    发明授权
    Flow divider valve assembly 失效
    分流阀组件

    公开(公告)号:US4372335A

    公开(公告)日:1983-02-08

    申请号:US237769

    申请日:1981-02-24

    IPC分类号: F15B13/06 F15B13/02 G05D11/03

    摘要: A flow divider valve assembly for dividing a flow of fluid between a priority flow device, such as a power steering system, and an excess flow device, such as an auxiliary mechanism. The flow divider valve assembly comprises a valve body defining an inlet port to be connected to a source of fluid under pressure, a priority flow outlet port, an excess flow outlet port and a valve bore interconnecting the ports, and a valve spool axially movable within the valve bore, the valve spool having formed therein an axial bore for permitting a constant communication between the inlet port and the priority flow outlet port. A first restrictor is disposed between the inlet port and the priority flow outlet port and a second restrictor is disposed between the inlet port and the excess flow outlet port. Restriction rate of the first restrictor is made larger than that of the first restrictor.

    摘要翻译: 一种用于在诸如动力转向系统的优先流量装置和诸如辅助机构的过量流动装置之间分配流体流的分流阀组件。 分流阀组件包括阀体,其限定要连接到压力下的流体源的入口端口,优先流出口,过量流出口和互连端口的阀孔以及可在轴向内移动的阀芯 阀芯,其中形成有用于允许入口端口和优先流出口之间的恒定连通的轴向孔的阀芯。 第一限流器设置在入口和优先流出口之间,第二限流器设置在入口和过流出口之间。 第一节流器的限制比第一节流器的限制更大。

    Hydraulic circuit for steering control in articulate vehicles
    4.
    发明授权
    Hydraulic circuit for steering control in articulate vehicles 失效
    铰链车辆转向控制液压回路

    公开(公告)号:US4047590A

    公开(公告)日:1977-09-13

    申请号:US638071

    申请日:1975-12-05

    IPC分类号: B62D5/09 B62D5/06

    CPC分类号: B62D5/09

    摘要: A hydraulic circuit for steering control in articulate vehicles which comprises an engine, a fixed displacement pump driven by the engine, a variable displacement pump driven by the engine, an exit port of the variable displacement pump being connected to a control valve of a steering actuator, an orifice provided at an outlet side of the fixed displacement pump and, a controlling cylinder connected to the variable displacement pump for controlling displacement of the variable displacement pump, the controlling cylinder being actuated by a spring disposed therein and a differential hydraulic pressure at the orifice.

    摘要翻译: 一种用于铰接式车辆中的转向控制的液压回路,包括发动机,由发动机驱动的固定排量泵,由发动机驱动的可变排量泵,可变排量泵的出口连接到转向致动器的控制阀 ,设置在固定排量泵的出口侧的孔口和连接到可变排量泵的控制缸,用于控制可变排量泵的排量,控制缸由设置在其中的弹簧致动,并且在该位移泵处的差动液压 孔。

    Hydraulic circuit for controlling actuators in a construction vehicle
    5.
    发明授权
    Hydraulic circuit for controlling actuators in a construction vehicle 失效
    用于控制施工车辆中的执行器的液压回路

    公开(公告)号:US4022023A

    公开(公告)日:1977-05-10

    申请号:US638070

    申请日:1975-12-05

    IPC分类号: F04B49/00 F04B49/08 F16H39/46

    CPC分类号: F04B49/08 F04B49/002

    摘要: A hydraulic circuit for controlling actuators in a construction vehicle which comprises an engine, a fixed displacement pump driven by said engine, a variable displacement pump driven by said engine, a controlling cylinder connected to the variable displacement pump for controlling the displacement thereof, an orifice provided between the output of the fixed displacement pump and a tank and, an unloading valve connected to the fixed displacement pump and also to the variable displacement pump via a pilot line for selectively unloading an output fluid from the fixed displacement pump when it is open.

    摘要翻译: 一种用于控制建筑车辆中的致动器的液压回路,包括发动机,由所述发动机驱动的固定排量的泵,由所述发动机驱动的可变排量泵,连接到所述可变排量泵的控制缸,用于控制其移动, 设置在固定排量泵的输出和罐之间,以及连接到固定排量泵的卸载阀,以及经由先导管路连接到可变排量泵,用于当打开时从固定排量泵选择性地卸载输出流体。

    Automatic purging method for injection molding machine
    7.
    发明授权
    Automatic purging method for injection molding machine 失效
    注塑机自动清洗方法

    公开(公告)号:US5281374A

    公开(公告)日:1994-01-25

    申请号:US334106

    申请日:1989-01-26

    CPC分类号: B29C45/1753

    摘要: An automatic purging method for an injection molding machine which is capable of injecting an arbitrary material among different kinds of materials into a mold without requiring a resin replacing block or a purging container and an additional material supply means for increasing the material supply pressure, and which has a nozzle valve in a nozzle unit. This method is used so as to enable the automatic purging to be done smoothly and speedily by operating the nozzle valve so that it behaves according to a predetermined program. This automatic purging method consists of the steps of supplying a fresh material from a hopper (7) into a screw cylinder (1), rotating a screw with a nozzle valve (4) closed, for a predetermined period of time or until the screw has been moved back a preset stroke, to plasticize the resin, and then purging the molten resin with the nozzle valve (4) set to a predetermined degree of opening.

    摘要翻译: PCT No.PCT / JP88 / 00522 Sec。 371日期1989年1月26日 102(e)日期1989年1月26日PCT提交1988年5月27日PCT公布。 出版物WO88 / 09253 日本特愿1988年12月1日。一种注射成型机的自动清洗方法,其能够将不同种类的材料中的任意材料注入模具中,而不需要树脂更换块或清洗容器和用于增加的附加材料供给装置 材料供应压力,并且在喷嘴单元中具有喷嘴阀。 使用该方法,以便通过操作喷嘴阀使得其能够根据预定程序而行动地顺利且快速地进行自动清洗。 这种自动清洗方法包括以下步骤:将新料从料斗(7)供应到螺杆缸(1)中,使具有喷嘴阀(4)的螺杆旋转预定时间段或螺杆具有 被移回到预定行程,使树脂塑化,然后用设定为预定开度的喷嘴阀(4)吹扫熔融树脂。

    Method of controlling injection molding machine
    8.
    发明授权
    Method of controlling injection molding machine 失效
    注塑机控制方法

    公开(公告)号:US4952364A

    公开(公告)日:1990-08-28

    申请号:US334271

    申请日:1988-12-29

    CPC分类号: B29C45/76

    摘要: A method of and apparatus for controlling an injection molding machine by reproducing injection time and stability of an inspection speed to thereby improve precision, stable moldability. In the injection molding machine, a nozzle valve (4) for changing the opening of this nozzle is disposed at the tip of the nozzle for injecting a molten resin, the degree of opening of this nozzle valve (4) is controlled to a predetermined quantity of opening in accordance with a preset screw moving position and the flow rate of an operation oil for pushing a screw (6) is controlled in accordance with the degree of opening of the nozzle valve (4).

    摘要翻译: PCT No.PCT / JP88 / 00434 Sec。 371日期:1988年12月29日第 102(e)日期1988年12月29日PCT提交1988年4月28日PCT公布。 出版物WO88 / 08783 日期:1988年11月17日。一种通过再现注射时间和检查速度的稳定性来控制注塑机的方法和装置,从而提高精度,稳定的成型性。 在注射成型机中,用于改变喷嘴的开口的喷嘴阀(4)设置在用于注射熔融树脂的喷嘴的尖端处,该喷嘴阀(4)的打开程度被控制到预定量 根据预设的螺杆移动位置打开,并且根据喷嘴阀(4)的打开程度来控制用于推动螺杆(6)的操作油的流量。

    Brake for a hydraulic motor
    9.
    发明授权
    Brake for a hydraulic motor 失效
    制动液压马达

    公开(公告)号:US4557109A

    公开(公告)日:1985-12-10

    申请号:US516361

    申请日:1983-07-22

    IPC分类号: B60T13/22 F16D31/02

    CPC分类号: B60T13/22

    摘要: A spring applied and hydraulically released motor shaft brake apparatus for a hydraulic motor which is compact in size. The brake apparatus includes a piston slidably mounted in a cylinder defining a brake chamber and a drain chamber. The piston is slidably and rotatably mounted on the motor shaft and a spring is disposed in the drain chamber for biasing the piston towards the brake chamber to thereby lock the motor shaft against rotation. The brake chamber is selectively connectible with a pressurized fluid source while the drain chamber is connected with a drain. The piston has formed therein a passage with a restrictor disposed therein for restricting flow of fluid in the passage.

    摘要翻译: 用于液压马达的弹簧应用和液压释放马达轴制动装置,其尺寸紧凑。 制动装置包括可滑动地安装在限定制动室和排出室的气缸中的活塞。 活塞可滑动地并可旋转地安装在电动机轴上,弹簧设置在排水室中,用于将活塞朝向制动室偏压,从而锁定电动机轴不受旋转。 制动室可选择性地与加压流体源连接,同时排水室与排水管连接。 活塞在其中形成有限定器设置在其中的通道,用于限制通道中的流体流动。