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公开(公告)号：US20110094601A1
公开(公告)日：2011-04-28
申请号：US12636351
申请日：2009-12-11
Applicant: Gang Yu , Zhongming Ye , Fugang Li
Inventor： Gang Yu , Zhongming Ye , Fugang Li
IPC: F16K11/02
CPC classification number: F16H61/4104 , F16H61/4043 , Y10T137/2567 , Y10T137/4259
Abstract: A bypass/flushing valve for a hydrostatic system includes a valve body including a central bore, a shuttle valve located in the central bore, and a valve spindle disposed within the central bore. The valve body includes four ports each in communication with the central bore. The shuttle valve blocks flow through the central bore between a first port and a second port. When pressure at the second port is higher than at the first port, the shuttle valve moves to allow flow passage between the first port and the third port. When pressure at the first port is higher than at the second port, the shuttle valve moves to allow flow passages between the second port and a third port. The spindle is movable between a first position to block communication between the second port and the fourth port and a second position to allow for communication between the second port and the fourth port.
Abstract translation: 用于静液压系统的旁通/冲洗阀包括阀体，阀体包括中心孔，位于中心孔中的梭阀和设置在中心孔内的阀芯。 阀体包括四个与中心孔连通的端口。 梭阀块在第一端口和第二端口之间流过中心孔。 当第二端口处的压力高于第一端口处的压力时，梭阀移动以允许第一端口和第三端口之间的流动通道。 当第一端口处的压力高于第二端口处的压力时，梭阀移动以允许在第二端口和第三端口之间的流动通道。 主轴可在第一位置之间移动以阻止第二端口和第四端口之间的通信，以及允许第二端口和第四端口之间的通信的第二位置。
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公开(公告)号：US08696325B2
公开(公告)日：2014-04-15
申请号：US13262074
申请日：2010-03-18
Applicant: Gang Yu , Zhongming Ye , Fugang Li
Inventor： Gang Yu , Zhongming Ye , Fugang Li
Abstract: A hydraulic pump includes a housing (12), a cylinder block (14), a plurality of pistons (16), a swash plate (18), a trunnion arm (22), a first biasing assembly (54), and a second biasing assembly (56). The cylinder block includes a plurality of piston chambers. The swash plate is disposed for pivotal movement in the housing and cooperates with the pistons to vary the working volume of the piston chambers. The swash plate is pivotal about a pivot axis (80). The trunnion arm includes a cylindrical shaft portion (140) and a cam portion (142) connected with or integrally formed with the shaft portion. The trunnion arm is operatively connected with the swash plate for controlling pivotal movement of the swash plate. The cylindrical shaft portion defines a trunnion arm rotational axis (144) that is parallel to and offset from the pivot axis (80). The cam portion is disposed within the housing and includes a first lateral cam surface (154) and a second lateral cam surface (156) disposed on an opposite side of a cam portion axis (158) that extends through the cam portion, intersects the trunnion arm rotational axis and is perpendicular to the trunnion arm rotational axis. The first biasing assembly (54) is disposed in the housing and cooperates with the first lateral cam surface to urge the cam portion in a first direction toward a neutral position. The second biasing assembly (56) is disposed in the housing and cooperates with the second lateral cam surface to urge the cam portion in a second direction toward the neutral position. The second direction is opposite to the first direction.
Abstract translation: 液压泵包括壳体（12），气缸体（14），多个活塞（16），斜盘（18），耳轴臂（22），第一偏压组件（54）和第二 偏压组件（56）。 气缸体包括多个活塞室。 旋转斜盘被设置为在壳体中枢转运动并与活塞配合以改变活塞室的工作容积。 旋转斜盘围绕枢转轴线（80）枢转。 耳轴臂包括圆柱形轴部分（140）和与轴部分连接或与轴部分一体形成的凸轮部分（142）。 耳轴臂与旋转斜盘操作连接，用于控制旋转斜盘的枢转运动。 圆柱形轴部分限定了枢转臂旋转轴线（144），其平行于枢转轴线（80）并偏离枢转轴线（80）。 所述凸轮部分设置在所述壳体内，并且包括设置在凸轮部分轴线158相对侧的第一侧向凸轮表面和第二横向凸轮表面，所述第二侧面凸轮表面延伸穿过所述凸轮部分，并与所述耳轴相交） 臂旋转轴线并垂直于耳轴旋转轴。 第一偏置组件（54）设置在壳体中并且与第一侧向凸轮表面配合以将凸轮部分沿第一方向推向中立位置。 第二偏压组件（56）设置在壳体中并与第二侧向凸轮表面配合，以朝向中立位置的第二方向推动凸轮部分。 第二方向与第一方向相反。
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公开(公告)号：US08347620B2
公开(公告)日：2013-01-08
申请号：US12636351
申请日：2009-12-11
Applicant: Gang Yu , Zhongming Ye , Fugang Li
Inventor： Gang Yu , Zhongming Ye , Fugang Li
IPC: F16D31/02
CPC classification number: F16H61/4104 , F16H61/4043 , Y10T137/2567 , Y10T137/4259
Abstract: A bypass/flushing valve for a hydrostatic system includes a valve body including a central bore, a shuttle valve located in the central bore, and a valve spindle disposed within the central bore. The valve body includes four ports each in communication with the central bore. The shuttle valve blocks flow through the central bore between a first port and a second port. When pressure at the second port is higher than at the first port, the shuttle valve moves to allow flow passage between the first port and the third port. When pressure at the first port is higher than at the second port, the shuttle valve moves to allow flow passages between the second port and a third port. The spindle is movable between a first position to block communication between the second port and the fourth port and a second position to allow for communication between the second port and the fourth port.
Abstract translation: 用于静液压系统的旁通/冲洗阀包括阀体，阀体包括中心孔，位于中心孔中的梭阀和设置在中心孔内的阀芯。 阀体包括四个与中心孔连通的端口。 梭阀块在第一端口和第二端口之间流过中心孔。 当第二端口处的压力高于第一端口处的压力时，梭阀移动以允许第一端口和第三端口之间的流动通道。 当第一端口处的压力高于第二端口处的压力时，梭阀移动以允许在第二端口和第三端口之间的流动通道。 主轴可在第一位置之间移动以阻止第二端口和第四端口之间的通信，以及允许第二端口和第四端口之间的通信的第二位置。
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公开(公告)号：US20120027626A1
公开(公告)日：2012-02-02
申请号：US13262074
申请日：2010-03-18
Applicant: Gang Yu , Zhongming Ye , Fugang Li
Inventor： Gang Yu , Zhongming Ye , Fugang Li
IPC: F04B27/08
Abstract: A hydraulic pump includes a housing (12), a cylinder block (14), a plurality of pistons (16), a swash plate (18), a trunnion arm (22), a first biasing assembly (54), and a second biasing assembly (56). The cylinder block includes a plurality of piston chambers. The swash plate is disposed for pivotal movement in the housing and cooperates with the pistons to vary the working volume of the piston chambers. The swash plate is pivotal about a pivot axis (80). The trunnion arm includes a cylindrical shaft portion (140) and a cam portion (142) connected with or integrally formed with the shaft portion. The trunnion arm is operatively connected with the swash plate for controlling pivotal movement of the swash plate. The cylindrical shaft portion defines a trunnion arm rotational axis (144) that is parallel to and offset from the pivot axis (80). The cam portion is disposed within the housing and includes a first lateral cam surface (154) and a second lateral cam surface (156) disposed on an opposite side of a cam portion axis (158) that extends through the cam portion, intersects the trunnion arm rotational axis and is perpendicular to the trunnion arm rotational axis. The first biasing assembly (54) is disposed in the housing and cooperates with the first lateral cam surface to urge the cam portion in a first direction toward a neutral position. The second biasing assembly (56) is disposed in the housing and cooperates with the second lateral cam surface to urge the cam portion in a second direction toward the neutral position. The second direction is opposite to the first direction.
Abstract translation: 液压泵包括壳体（12），气缸体（14），多个活塞（16），斜盘（18），耳轴臂（22），第一偏压组件（54）和第二 偏压组件（56）。 气缸体包括多个活塞室。 旋转斜盘被设置为在壳体中枢转运动并与活塞配合以改变活塞室的工作容积。 旋转斜盘围绕枢转轴线（80）枢转。 耳轴臂包括圆柱形轴部分（140）和与轴部分连接或与轴部分一体形成的凸轮部分（142）。 耳轴臂与旋转斜盘操作连接，用于控制旋转斜盘的枢转运动。 圆柱形轴部分限定了枢转臂旋转轴线（144），其平行于枢转轴线（80）并偏离枢转轴线（80）。 所述凸轮部分设置在所述壳体内，并且包括设置在凸轮部分轴线158相对侧的第一侧向凸轮表面和第二横向凸轮表面，所述第二侧面凸轮表面延伸穿过所述凸轮部分，并与所述耳轴相交） 臂旋转轴线并垂直于耳轴旋转轴。 第一偏置组件（54）设置在壳体中并且与第一侧向凸轮表面配合以将凸轮部分沿第一方向推向中立位置。 第二偏压组件（56）设置在壳体中并与第二侧向凸轮表面配合，以朝向中立位置的第二方向推动凸轮部分。 第二方向与第一方向相反。
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