发明申请
US20120233996A1 SYSTEM FOR ALLOCATING FLUID FROM MULTIPLE PUMPS TO A PLURALITY OF HYDRAULIC FUNCTIONS ON A PRIORITY BASIS
有权
基本信息:
- 专利标题： SYSTEM FOR ALLOCATING FLUID FROM MULTIPLE PUMPS TO A PLURALITY OF HYDRAULIC FUNCTIONS ON A PRIORITY BASIS
- 专利标题（中）：将液体从多个流量分配到优先级基础上的液压功能的系统
- 申请号：US13420851 申请日：2012-03-15
- 公开(公告)号：US20120233996A1 公开(公告)日：2012-09-20
- 发明人： Corey K. Quinnell , Joseph L. Pfaff , Jonathan M. Starkey , Eric P. Hamkins
- 申请人： Corey K. Quinnell , Joseph L. Pfaff , Jonathan M. Starkey , Eric P. Hamkins
- 主分类号： F15B13/06
- IPC分类号： F15B13/06 ; F15B11/20 ; F15B11/17
摘要：
A valve assembly has a flow summation node coupled to a displacement control port of the first pump. Each valve in the assembly has a variable metering orifice controlling flow from an inlet to a hydraulic actuator and has a variable source orifice conveying fluid from a supply conduit to a flow summation node. The source orifice enlarges as the metering orifice shrinks. Each valve includes a variable bypass orifice and the bypass orifices of all the control valves are connected in series forming a bypass passage between a bypass node and a tank. The bypass node is coupled to the flow summation node and receives fluid from a second pump. At each valve, a source check valve conveys fluid from the supply conduit to the inlet and a bypass supply check valve conveys fluid from the bypass passage to the inlet.
摘要（中）：
阀组件具有联接到第一泵的位移控制端口的流量求和节点。 组件中的每个阀都具有可变计量孔口，用于控制从入口到液压致动器的流量，并具有将流体从供应管道输送到流量求和节点的可变源孔口。 当孔口收缩时，源孔口扩大。 每个阀都包括一个可变旁路孔，并且所有控制阀的旁通孔串联连接，在旁路节点和罐之间形成旁路通道。 旁路节点耦合到流量求和节点并接收来自第二泵的流体。 在每个阀处，源止回阀将流体从供应管道输送到入口，旁路供应止回阀将流体从旁路通道输送到入口。