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公开(公告)号：US4220072A
公开(公告)日：1980-09-02
申请号：US933873
申请日：1978-08-15
申请人： Akio Numazawa , Minoru Kawabata , Ryutaro Abe , Mikio Suzuki , Yoshiharu Inaguma
发明人： Akio Numazawa , Minoru Kawabata , Ryutaro Abe , Mikio Suzuki , Yoshiharu Inaguma
CPC分类号： B62D5/24 , B62D5/08 , Y10T137/86638
摘要： A power steering apparatus comprises a main valve member rotating in response to the action of a fluid pressure motor supplementing manual steering torque and a flap valve member rotating in response to the manual steering torque and mounted within the main valve member. The main valve member and the flap valve member are operable to control flow of fluid under pressure supplied into and discharged from the fluid pressure motor. A plunger member is slidably received in the flap valve member and is provided with an anti-vibration member. A passage communicating with a fluid supply port is provided for applying fluid under pressure to the plunger member to urge the anti-vibration member against the main valve member.
摘要翻译： 动力转向装置包括响应于补充手动转向扭矩的流体压力马达的动作而旋转的主阀构件以及响应于手动转向扭矩而旋转并安装在主阀构件内的挡板阀构件。 主阀构件和活瓣阀构件可操作以控制供给流体压力马达和从流体压力马达排出的压力下的流体流动。 活塞构件可滑动地容纳在活门阀构件中并且设置有防振构件。 提供与流体供应口连通的通道，用于将压力下的流体施加到柱塞构件，以将防振构件推向主阀构件。
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公开(公告)号：US4964983A
公开(公告)日：1990-10-23
申请号：US434258
申请日：1989-11-13
申请人： Ryutaro Abe , Yoshiyuki Takeuchi , Kouichi Shibata
发明人： Ryutaro Abe , Yoshiyuki Takeuchi , Kouichi Shibata
CPC分类号： B01D36/02 , B01D29/01 , B01D35/027 , B01D35/14
摘要： A reservoir used in an automotive power steering system is provided with a first filter disposed within a reservoir body at a location between an inlet and an outlet thereof. The reservoir is further provided with a first guide member for forcing the oil flowed into through the inlet to flow toward the first filter by changing the flow direction of the oil and a second guide member for forcing the oil passed through the first filter to flow toward the outlet by changing the flow direction of the oil. The first guide member is provided with an opening, and a second filter whose mesh is finer than that of the first filter is attached to the opening so as to allow the oil to flow from the inlet to the inside space above the first filter through the second filter. On the other hand, the second guide member is formed with a second opening for allowing the oil passed through the first filter to flow toward the outlet through the second opening.
摘要翻译： 在汽车动力转向系统中使用的储存器设置有在其入口和出口之间的位置处设置在储存器本体内的第一过滤器。 储存器还设置有第一引导构件，用于迫使通过入口流入的油通过改变油的流动方向而流向第一过滤器;以及第二引导构件，用于迫使通过第一过滤器的油流向 该出口通过改变油的流动方向。 第一引导构件设置有开口，并且第二过滤器的网格比第一过滤器的网眼更细，附接到开口，以便允许油从第一过滤器上方的入口到内部空间通过第一过滤器 第二个过滤器 另一方面，第二引导构件形成有第二开口，用于允许通过第一过滤器的油通过第二开口朝向出口流动。
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公开(公告)号：US4347047A
公开(公告)日：1982-08-31
申请号：US177911
申请日：1980-08-14
摘要： A vane type hydraulic pump for use in a power steering apparatus comprising a pump housing receiving therein a non-rotatable cam ring and first and second non-rotatable but axially slidable side plates. A pump rotor rotatable integrally with a drive shaft is received in an internal cam bore of the cam ring and, when rotated, delivers pressurized fluid to a discharge port connected to the power steering apparatus. The first and second side plates define at a contact portion therebetween a radial low pressure cavity, which is fluidically communicated with an axial low pressure hole receiving working fluid from a pump reservoir and bypassed fluid from a flow volume control valve. A branch member is provided on one of the side plates to smoothly branch the fluid flow flowing in the low pressure hole in the axial direction into the flow flowing along the low pressure cavity in the radial direction.
摘要翻译： 一种用于动力转向装置的叶片式液压泵，包括泵壳体，其中容纳有不可旋转的凸轮环和第一和第二不可旋转但可轴向滑动的侧板。 与驱动轴一体旋转的泵转子被容纳在凸轮环的内部凸轮孔中，并且当旋转时将加压流体输送到连接到动力转向装置的排出口。 第一和第二侧板在其间的接触部分处限定径向低压腔，其与从泵容器接收工作流体的轴向低压孔和来自流量控制阀的旁路流体流体连通。 在一个侧板上设置有分支构件，以将在低压孔中沿轴向流动的流体流平滑地分散成沿着低压腔沿径向流动的流动。
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公开(公告)号：US4917139A
公开(公告)日：1990-04-17
申请号：US368812
申请日：1989-06-20
申请人： Tadataka Narumi , Ryutaro Abe , Susumu Honaga , Yoshiyuki Toyama
发明人： Tadataka Narumi , Ryutaro Abe , Susumu Honaga , Yoshiyuki Toyama
CPC分类号： B62D5/06 , B62D5/061 , Y10T137/2562 , Y10T137/2579
摘要： There is disclosed a flow control apparatus for a power steering device in which an operating fluid discharged from a pump is delivered to a power steering device through a restricted passage, and the fluid flow is adjusted by a spool valve movable in response to the pressure difference across the restricted passage. The spool valve contains a first relief valve operating at a first setting pressure in response to the fluid pressure transmitted from a passage located at the downstream side of the restricted passage through a connecting passage. The spool valve also contains a second relief valve operating at a second setting pressure higher than the first setting pressure, but lower than a allowable maximum load pressure, in response to the fluid pressure directly transmitted from a chamber located at the upstream side of the restricted passage. During operations under normal temperature conditions, the first relief valve operates when the load pressure reaches the first setting pressure. Under low temperature conditions, the second relief valve first operates at the second setting pressure, and then the first relief valve operates in order to reduce the fluid pressure to the first setting pressure. With this operation, the fluid pressure delivered to the power steering device is maintained not to exceed the maximum load pressure even under low temperature condition.
摘要翻译： 公开了一种用于动力转向装置的流量控制装置，其中从泵排出的工作流体通过限制通道被输送到动力转向装置，并且流体流量由可根据压力差移动的滑阀调节 跨限制通道 滑阀包含响应于从限制通道的下游侧的通道通过连接通道传递的流体压力而在第一设定压力下操作的第一安全阀。 滑阀还包含第二安全阀，其操作在高于第一设定压力的第二设定压力下，但是响应于从位于受限制的上游侧的室直接传递的流体压力而低于允许的最大负载压力 通道。 在常温条件下运行时，当负载压力达到第一设定压力时，第一安全阀工作。 在低温条件下，第二安全阀首先在第二设定压力下操作，然后第一安全阀工作，以将流体压力降低到第一设定压力。 通过该操作，即使在低温条件下，输送到动力转向装置的流体压力也不会超过最大负载压力。
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公开(公告)号：US5201878A
公开(公告)日：1993-04-13
申请号：US772884
申请日：1991-10-08
CPC分类号： F04C15/0049
摘要： A vane pump includes a pump housing formed with a cylindrical inner space, intake ports and exhaust ports, a rotating shaft rotatably supported by the pump housing, a rotor received in the cylindrical inner space to be rotated by the rotating shaft, a cam ring disposed in the cylindrical inner space, a plurality of vanes held by the rotor to define plural pump chambers between the rotor and cam ring. Fluid sucked from the intake ports is pressurized and discharged to the exhaust ports. The vane pump is further provided with first and second pressure chambers and a throttle passage connecting the first and second pressure chambers. Pressurized fluid discharged from one of the exhaust ports is led to one of the two pressure chambers and pressurized fluid discharged form the other of the exhaust ports is led to the other of the pressure chambers while pressurized fluid is taken out from the second pressure chamber to be supplied to a fluid device.
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