| 发明名称 |
Valve of a Hydraulically Striking Device |
| 摘要 |
A valve of a hydraulically striking device having a housing, the housing comprising a moving member being seated inside the housing to move in a reciprocating manner by means of a hydraulic fluid. The moving member has an inner space, the valve has a return space and a pressure space provided, in the axial direction, at a distance from one another on the inner surface of the housing facing the moving member, wherein the rest of the inner surface of the housing in the same axial positions of the return space and the pressure space forms guide surfaces that are concentric with the moving member and against the moving member for centering the moving member. |
| 申请公布号 |
US2016138728(A1) |
申请公布日期 |
2016.05.19 |
| 申请号 |
US201514829847 |
申请日期 |
2015.08.19 |
| 申请人 |
Doofor Oy |
发明人 |
Hämäläinen Jaakko |
| 分类号 |
F16K21/04;E21B7/02;B23P15/00;E21B1/02 |
主分类号 |
F16K21/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A valve of a hydraulically striking device comprising
a housing comprising a moving member being seated inside the housing to be moved in a reciprocating manner by means of a hydraulic fluid, wherein the moving member comprises an inner space, wherein the valve comprises at least a first return space and a first pressure space provided, in the axial direction, at a distance from one another on the inner surface of the housing facing the moving member, wherein the rest of the inner surface of the housing in the same axial positions of the first return space and the first pressure space forms guide surfaces that are concentric with the moving member and against the moving member and that are arranged for centering the moving member. |
| 地址 |
Nokia FI |
