公开(公告)号：US07722342B2

公开(公告)日：2010-05-25

申请号：US11684085

申请日：2007-03-09

申请人： Isamu Tsubono ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

发明人： Isamu Tsubono ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

IPC分类号： F01C1/02

CPC分类号： F04C2/102 ,  F04C2/084 ,  F04C2/18 ,  F04C15/0019 ,  F04C15/0026 ,  F04C2230/91

摘要： In order to realize cost reduction in a gear pump apparatus by reducing form accuracy of a gear while securing pump performance, a running-in coating is provided on a tooth sliding contact portion when forming a confinement area in at least one of gears of the gear pump apparatus. By this feature, the running-in coating is gradually worn away and deformed according to rotary drive of the pump, and thus it is possible to obtain an optimal gear form in meshing combinations of the gears. Further, it is possible to reduce leakage inside the pump to secure the pump performance even if the form accuracy of the gear is reduced for the sake of the cost reduction.

摘要翻译： 为了通过在确保泵的性能的同时降低齿轮的形状精度来实现齿轮泵装置的成本降低，当在齿轮的齿轮中的至少一个齿轮中形成限制区域时，在齿滑动接触部分上设置进入涂层 泵装置。 通过该特征，随着泵的旋转驱动，流入式涂层逐渐磨损和变形，从而可以获得齿轮的啮合组合中的最佳齿轮形状。 此外，为了降低成本，即使齿轮的形状精度降低，也可以减小泵内部的泄漏以确保泵的性能。

公开(公告)号：US20070253855A1

公开(公告)日：2007-11-01

申请号：US11684085

申请日：2007-03-09

申请人： Isamu TSUBONO ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

发明人： Isamu TSUBONO ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

IPC分类号： F04C2/10

CPC分类号： F04C2/102 ,  F04C2/084 ,  F04C2/18 ,  F04C15/0019 ,  F04C15/0026 ,  F04C2230/91

摘要： In order to realize cost reduction in a gear pump apparatus by reducing form accuracy of a gear while securing pump performance, a running-in coating is provided on a tooth sliding contact portion when forming a confinement area in at least one of gears of the gear pump apparatus. By this feature, the running-in coating is gradually worn away and deformed according to rotary drive of the pump, and thus it is possible to obtain an optimal gear form in meshing combinations of the gears. Further, it is possible to reduce leakage inside the pump to secure the pump performance even if the form accuracy of the gear is reduced for the sake of the cost reduction.

摘要翻译： 为了通过在确保泵的性能的同时降低齿轮的形状精度来实现齿轮泵装置的成本降低，当在齿轮的齿轮中的至少一个齿轮中形成限制区域时，在齿滑动接触部分上设置进入涂层 泵装置。 通过该特征，随着泵的旋转驱动，流入式涂层逐渐磨损和变形，从而可以获得齿轮啮合组合中的最佳齿轮形状。 此外，为了降低成本，即使齿轮的形状精度降低，也可以减小泵内部的泄漏以确保泵的性能。

公开(公告)号：US20070028606A1

公开(公告)日：2007-02-08

申请号：US11493895

申请日：2006-07-27

申请人： Masaki Misunou ,  Masakazu Kurata ,  Mitsuo Sasaki ,  Masaaki Busujima ,  Yoshimori Kondo

发明人： Masaki Misunou ,  Masakazu Kurata ,  Mitsuo Sasaki ,  Masaaki Busujima ,  Yoshimori Kondo

IPC分类号： F16D31/02

CPC分类号： B62D5/065 ,  B62D5/062

摘要： In a power-cylinder equipped power steering device, under a first condition where a first directional control valve disposed in a first pressure line receives fluid pressure supplied into a second pressure line by a reversible pump, the first directional control valve intercommunicates a reservoir and a first-pressure-line downstream passage section, and blocks fluid communication of the first-pressure-line upstream and downstream passage sections. Under a second condition where a second directional control valve receives fluid pressure supplied into the first pressure line by the pump, the first directional control valve intercommunicates the first-pressure-line upstream and downstream passage sections. Under the second condition, the second directional control valve intercommunicates the reservoir and the second-pressure-line downstream passage section, and blocks fluid communication of the second-pressure-line upstream and downstream passage sections. Under the first condition, the second directional control valve intercommunicates the second-pressure-line upstream and downstream passage sections.

摘要翻译： 在配备动力缸的动力转向装置中，在设置在第一压力管路中的第一方向控制阀通过可逆泵接收供给到第二压力管路的流体压力的第一状态下，第一方向控制阀将储存器和 第一压力下游通路部，阻止第一压力上游侧流路部和下游侧流路部的流体连通。 在第二方式控制阀通过泵接收供给第一压力管线的流体压力的第二状态下，第一方向控制阀将第一压力上游和下游通道部分相互连通。 在第二条件下，第二方向控制阀将储存器和第二压力下游通道部分相互连通，并且阻止第二压力线上游和下游通道部分的流体连通。 在第一条件下，第二方向控制阀使第二压力线上游和下游通道部分相互连通。