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1. 发明授权

US5613840A Pump including a control valve and sealing member 失效
标题翻译：泵包括一个控制阀和密封件
公开(公告)号：US5613840A
公开(公告)日：1997-03-25
申请号：US425979
申请日：1995-04-20
申请人： Kazuyoshi Ishizaki , Masateru Yamamuro , Atsushi Ishizuka , Shouji Ohya , Miyoko Hamao
发明人： Kazuyoshi Ishizaki , Masateru Yamamuro , Atsushi Ishizuka , Shouji Ohya , Miyoko Hamao
IPC分类号： F04B49/22 , F04B53/16 , F04B49/00
CPC分类号： F04B53/16 , F04B49/225
摘要： A pump comprising a pump body having a control valve for controlling working fluid flow from the pump body to an actuator through a joint. The joint is connected mechanically to the pump body through a washer made of a material different from that of the pump body. The washer has a side surface held in contact with the pump body at a junction. The pump also includes an annular seal member provided to keep the junction from exposure to the environment. In an embodiment of the invention, the seal member is placed in an annular groove formed in the outer peripheral surface of the pump body. The seal member may have a side surface in fluid-sealing contact with the surface of the washer so as to keep the junction between the pump body and the washer from exposure to the environment.
摘要翻译：一种泵，其包括具有控制阀的泵体，所述控制阀用于控制通过接头从泵体到致动器的工作流体流动。该接头通过由不同于泵体的材料制成的垫圈机械连接到泵体。垫圈具有在连接处与泵体保持接触的侧表面。泵还包括环形密封构件，其被设置用于保持接头不暴露于环境。在本发明的一个实施例中，密封构件被放置在形成在泵体的外周表面中的环形槽中。密封构件可以具有与垫圈的表面流体密封接触的侧表面，以便保持泵体和垫圈之间的接合部不暴露于环境中。

2. 发明授权

US5595478A Pump and control valve with annular sealing member to prevent corrosion 失效
标题翻译：泵和控制阀带环形密封件防止腐蚀
公开(公告)号：US5595478A
公开(公告)日：1997-01-21
申请号：US425980
申请日：1995-04-20
申请人： Kazuyoshi Ishizaki , Masateru Yamamuro , Atsushi Ishizuka , Shouji Ohya , Miyoko Hamao
发明人： Kazuyoshi Ishizaki , Masateru Yamamuro , Atsushi Ishizuka , Shouji Ohya , Miyoko Hamao
IPC分类号： F04B49/22 , F04B53/16 , F04B49/00
CPC分类号： F04B53/16 , F04B49/225
摘要： A pump comprising a pump body having a control valve for controlling working fluid flow from the pump body to an actuator through a joint. The joint is connected mechanically to the pump body through a washer made of a material different from that of the pump body. The washer has a side surface held in contact with the pump body at a junction. The pump also includes an annular seal member provided to keep the junction from exposure to the environment. In an embodiment of the present invention (FIG. 7), an annular member is provided between the pump body and the washer, with the annular member being made of an insulating material to prevent electrical conduction between the pump body and the washer.
摘要翻译：一种泵，其包括具有控制阀的泵体，所述控制阀用于控制通过接头从泵体到致动器的工作流体流动。该接头通过由不同于泵体的材料制成的垫圈机械连接到泵体。垫圈具有在连接处与泵体保持接触的侧表面。泵还包括环形密封构件，其被设置用于保持接头不暴露于环境。在本发明的一个实施例（图7）中，在泵体和垫圈之间设置环形构件，环形构件由绝缘材料制成，以防止泵体和垫圈之间的电导通。

3. 发明授权

US5540566A Pump including a control valve 失效
标题翻译：泵包括一个控制阀
公开(公告)号：US5540566A
公开(公告)日：1996-07-30
申请号：US103989
申请日：1993-08-10
申请人： Kazuyoshi Ishizaki , Masateru Yamamuro , Atsushi Ishizuka , Shouji Ohya , Miyoko Hamao
发明人： Kazuyoshi Ishizaki , Masateru Yamamuro , Atsushi Ishizuka , Shouji Ohya , Miyoko Hamao
IPC分类号： F04B49/22 , F04B53/16 , F04B49/00
CPC分类号： F04B53/16 , F04B49/225
摘要： A pump comprising a pump body having a control valve for controlling working fluid flow from the pump body to an actuator through a joint. The joint is connected mechanically to the pump body through a washer made of a material different from that of the pump body. The washer has a side surface held in contact with the pump body at a galvanic junction. The pump also includes an annular seal member provided to keep the junction from exposure to the environment.
摘要翻译：一种泵，其包括具有控制阀的泵体，所述控制阀用于控制通过接头从泵体到致动器的工作流体流动。该接头通过由不同于泵体的材料制成的垫圈机械连接到泵体。垫圈具有在电连接处与泵体保持接触的侧表面。泵还包括环形密封构件，其被设置用于保持接头不暴露于环境。

4. 发明授权

US6139285A Hydraulic pump for power steering system 失效
标题翻译：动力转向系统用液压泵
公开(公告)号：US6139285A
公开(公告)日：2000-10-31
申请号：US92859
申请日：1998-06-08
申请人： Yukio Uchida , Tetsuya Ishii , Atsushi Ishizuka , Masateru Yamamuro
发明人： Yukio Uchida , Tetsuya Ishii , Atsushi Ishizuka , Masateru Yamamuro
IPC分类号： B62D5/07 , F04B49/00 , F04B53/10 , F04C2/344 , F04C14/24 , F04C14/26 , F04C15/06
CPC分类号： F04C14/26
摘要： A hydraulic pump including a pressure chamber, a drain passage communicable with the pressure chamber, a delivery port, a discharge path fluidly connecting the pressure chamber with the delivery port, and an orifice disposed in the discharge path. A first flow control valve is provided for variably controlling fluid communication between the pressure chamber and the drain passage in response to a difference between fluid pressures upstream and downstream of the orifice. A second flow control valve is disposed within the discharge path, which is operative to variably control an opening area of the orifice in response to energy of fluid passing through the discharge path. The second flow control valve includes a moveable spool exposed to a fluid pressure within the pressure chamber, a spring biasing the spool in such one direction as to increase the opening area of the orifice, and a spring retainer cooperating with the spool to define a spring chamber accommodating the spring.
摘要翻译：一种液压泵，包括压力室，可与压力室连通的排放通道，输送口，将压力室与输送口流体连接的排出路径，以及设置在排出路径中的孔口。提供第一流量控制阀，用于响应于孔口上游和下游的流体压力的差异来可变地控制压力室和排放通道之间的流体连通。第二流量控制阀设置在排放路径内，其可操作以响应于通过排出路径的流体的能量来可变地控制孔口的开口面积。所述第二流量控制阀包括暴露于所述压力室内的流体压力的可动阀芯，弹簧沿所述一个方向偏压所述阀芯以增加所述孔口的开口面积;以及弹簧保持器，与所述阀芯配合以限定弹簧容纳弹簧的室。

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