公开(公告)号：US20020083704A1

公开(公告)日：2002-07-04

申请号：US09755677

申请日：2001-01-04

申请人： Tai E International Patent and Law Office

发明人： Ta-Chin Wang

IPC分类号： F16D031/02

CPC分类号： F04B9/127 ,  F04B53/18 ,  F15B11/15

摘要： A pneumatic oil pump has a cylinder, a piston, a pedal and an oil reservoir. The cylinder has a central bore, a sealed front end and a sealed rear end. An air connector is mounted in a cover on the front end of the cylinder. An actuating valve is mounted in the cover on the front end of the cylinder and communicating with the air connector and the central bore of the cylinder. The piston is movably mounted in the bore of the cylinder to divide the central bore of the cylinder into a first chamber and a second chamber. A piston seat is attached to the piston at an end facing the rear end of the cylinder. A ventilative, sound-absorbing material is arranged between the air outlets of the piston and the piston seat. By such an arrangement, the shock of the air flow can be absorbed by the ventilative, sound absorbing material. Therefore, noise and shock will not occur when the pneumatic pump is in operation.

摘要翻译： 气动油泵具有气缸，活塞，踏板和油箱。 气缸具有中心孔，密封的前端和密封的后端。 空气连接器安装在气缸前端的盖中。 致动阀安装在气缸前端的盖中，并与空气连接器和气缸的中心孔连通。 活塞可移动地安装在气缸的孔中，以将气缸的中心孔分成第一腔室和第二腔室。 活塞座在面向气缸后端的一端连接到活塞上。 在活塞和活塞座的空气出口之间布置有通风吸声材料。 通过这样的布置，气流的冲击可以被通风的吸声材料吸收。 因此，气动泵运行时不会发生噪音和冲击。