公开(公告)号：US20060127254A1

公开(公告)日：2006-06-15

申请号：US11260185

申请日：2005-10-28

申请人： Travis Bakker ,  Michael Landrum ,  Douglas Miller ,  James Jirele

发明人： Travis Bakker ,  Michael Landrum ,  Douglas Miller ,  James Jirele

IPC分类号： F04B23/00

CPC分类号： F04B49/24 ,  F04B33/00

摘要： A method and apparatus is provided that includes a hand pump having a handle locking mechanism, a counter bored nut, pivoting links, and unlocking valve assembly. The unloading valve assembly allows a pump operator to pump a larger volume of hydraulic fluid and/or to pump to higher pressures in first stage operation than a conventional pump which employs a direct-acting relief valve. The unloading valve also decreases the effort required to pump the handle during second stage operation. The handle locking mechanism allows the pump handle from moving during transporting and storing of the hand pump. The counter bored nut allows for more reservoir room than conventional hand pumps. The pivoting link allows for greater leverage of the handle during pumping.

摘要翻译： 提供了一种方法和装置，其包括具有手柄锁定机构，反钻孔螺母，枢转连杆和解锁阀组件的手动泵。 卸载阀组件允许泵操作者比使用直接作用的安全阀的常规泵泵送较大体积的液压流体和/或在第一阶段操作中泵送到更高的压力。 卸载阀还降低了在第二阶段操作期间泵送手柄所需的努力。 手柄锁定机构允许泵手柄在运输和储存手动泵期间移动。 反钻孔螺母允许比常规手动泵更多的储存室。 枢转连杆允许在泵送期间手柄的更大的杠杆作用。