公开(公告)号：US07168928B1

公开(公告)日：2007-01-30

申请号：US10781926

申请日：2004-02-17

Applicant: Todd M. West ,  Dennis E. Kennedy

Inventor： Todd M. West ,  Dennis E. Kennedy

IPC: F04B43/06 ,  F04B45/00

CPC classification number: F04B9/133 ,  F04B9/135

Abstract: An air driven hydraulic pump includes two opposed cylinders to either side of a center section. Two pneumatic pistons are slidable in the opposed cylinders and are coupled with one another by a common shaft extending through the center section. The pneumatic pistons ride in the opposed pneumatic cylinders and include hydraulic plungers extending therefrom. Cylinder heads integral with the cylinders provide hydraulic cylinders aligned with the hydraulic plungers. An air valve delivers pneumatic pressure to alternate sides of both pneumatic pistons such that the forces on the pistons are additive alternately in each direction.

Abstract translation: 气动液压泵包括两个相对的气缸，位于中心部分的任一侧。 两个气动活塞可在相对的气缸中滑动，并通过延伸穿过中心部分的公共轴彼此联接。 气动活塞骑在相对的气动缸中，并且包括从其延伸的液压柱塞。 与气缸一体化的气缸头提供与液压柱塞对准的液压缸。 空气阀将气动压力提供给两个气动活塞的交替侧，使得活塞上的力在每个方向上交替地相加。