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1. 发明申请

US20070295923A1 Relief Valve 审中-公开
标题翻译：泄压阀
公开(公告)号：US20070295923A1
公开(公告)日：2007-12-27
申请号：US11791475
申请日：2005-11-10
申请人： Takafumi Akutagawa , Hiroaki Kuboi , Kenji Suzuki
发明人： Takafumi Akutagawa , Hiroaki Kuboi , Kenji Suzuki
IPC分类号： F16K47/02
CPC分类号： F16K17/0433
摘要： A relief valve includes a high-pressure port (14) communicating to a hydraulic circuit (41), a low-pressure port (15) communicating to a drain circuit (42), a valve (11) supported so as to be movable in back and forward in the axial direction thereof to open and close between these ports (14, 15), a piston (12) supported so as to be movable in the coaxial direction in relation to the valve (11), a spring (13) interveningly provided between the valve (11) and the piston (12) for biasing the valve (11) to a valve closing direction against the pressure of the high-pressure port (14), a damping chamber (20) defined at back side of the piston (12), pressure guiding paths (26, 27) for guiding the pressure in the upstream side of the valve (11) to the damping chamber (20), and a plurality of orifices (30a to 30d) exchangeably arranged in series in the pressure guiding paths (26, 27).
摘要翻译：泄压阀包括与液压回路（41）连通的高压端口（14），与排水回路（42）连通的低压端口（15），被支撑为可移动的阀在所述端口（14,15）之间开启和关闭所述端口（14,15）;活塞（12），其被支撑成能够相对于所述阀（11）在同轴方向上移动;弹簧（13），插在所述阀（11）和所述活塞（12）之间，用于抵抗所述高压端口（14）的压力将所述阀（11）偏压到关闭方向;阻尼室（20）活塞（12），用于将阀（11）的上游侧的压力引导到阻尼室（20）的压力引导路径（26,27），以及多个孔（30a〜30d）在压力引导路径（26,27）中串联连接。

2. 发明申请

US20080019845A1 Fluid Pressure Motor 审中-公开
标题翻译：流体压力马达
公开(公告)号：US20080019845A1
公开(公告)日：2008-01-24
申请号：US11793354
申请日：2005-12-14
申请人： Kenji Suzuki , Takafumi Akutagawa , Hiroaki Kuboi
发明人： Kenji Suzuki , Takafumi Akutagawa , Hiroaki Kuboi
IPC分类号： F03C1/253
CPC分类号： F03C1/0636 , E02F9/128 , F03C1/0663
摘要： In a swash plate piston motor (2), a piston (24, 41) which is caused to reciprocate by a fluid pressure and a cylinder block (23) which rotates within an operating chamber (21) in accordance with the reciprocation of the piston (24, 41) are accommodated in the operating chamber (21) inside a case (30). When the cylinder block (23) rotates through inertia after a supply of working fluid to a working fluid passage (11, 12) for applying the fluid pressure to the piston (24, 41) has been shut off, a check valve (18) supplies working fluid in the operating chamber (21) to the working fluid passage (11, 12) through a communicating passage (14) if necessary. As a result, the interior pressure of the fluid pressure motor (2) is prevented from becoming negative, and the piston (24, 41) is prevented from floating up from a swash plate (25).
摘要翻译：在旋转斜盘活塞马达（2）中，通过流体压力往复运动的活塞（24,41）和气缸体（23），所述气缸体（23）根据活塞的往复运动而在操作室（21）内旋转（24,41）容纳在壳体（30）内的操作室（21）中。在将工作流体供给到向活塞（24,41）施加流体压力的工作流体通道（11,12）之后，当气缸体（23）转动时，止回阀（18）如果需要，通过连通通道（14）将工作流体（21）向工作流体通道（11,12）提供。结果，防止了流体压力马达（2）的内部压力变为负值，并且防止活塞（24,41）从斜盘（25）浮起。

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