公开(公告)号：US20040035288A1

公开(公告)日：2004-02-26

申请号：US10228000

申请日：2002-08-26

Applicant: CROSS MANUFACTURING, INC.

Inventor： Steven C. Hawthorne

IPC: F15B015/22

CPC classification number: F15B15/224

Abstract: A cushioned hydraulic cylinder which includes a check valve in the cushioning path to allow fast opposite direction movement. The check valve is in the form of a cast iron piston ring located within a groove in the piston which blocks unrestricted flow across the piston when the piston ring is seated against one side face of the groove and opens unrestricted flow when the piston ring abuts the opposite side face of the groove when the piston is moving in the opposite direction.

Abstract translation: 缓冲液压缸，其在缓冲路径中包括止回阀，以允许快速相反的方向运动。 止回阀是位于活塞槽内的铸铁活塞环的形式，当活塞环抵靠在槽的一个侧面上时阻止流过活塞的不受限制的流动，当活塞环抵靠在活塞环上时，打开不受限制的流动 当活塞沿相反方向移动时，槽的相对侧面。