公开(公告)号：US20180347711A1

公开(公告)日：2018-12-06

申请号：US15895805

申请日：2018-02-13

申请人： SHUGUANG CHEN ,  PAUL JOHN PHELAN ,  XIAOBING DENG

发明人： SHUGUANG CHEN ,  PAUL JOHN PHELAN ,  XIAOBING DENG

IPC分类号： F16K5/06

摘要： A top entry ball valve including a valve body, a valve cover, a valve stem, an assembly screw, a spring, a support sleeve, a support valve seat, a sphere, and a sealing valve seat. The valve stem passes through the valve cover and the valve body and is fixedly connected to the sphere disposed within the valve body; the valve cover is fixed to the opening of the cavity of the valve body by screws, to seal the cavity of the valve body; the sphere spherically fits with the support valve seat and the sealing valve seat; the support sleeve and the spring are provided between the support valve seat and the valve body; the spring presses the support sleeve and the support valve seat such that the support valve seat clings to the sphere; the support sleeve is fixedly connected to the valve body by the assembly screw.

公开(公告)号：US10648574B2

公开(公告)日：2020-05-12

申请号：US15895805

申请日：2018-02-13

申请人： Shuguang Chen ,  Paul John Phelan ,  Xiaobing Deng

发明人： Shuguang Chen ,  Paul John Phelan ,  Xiaobing Deng

IPC分类号： F16K5/06

摘要： A top entry ball valve including a valve body, a valve cover, a valve stem, an assembly screw, a spring, a support sleeve, a support valve seat, a sphere, and a sealing valve seat. The valve stem passes through the valve cover and the valve body and is fixedly connected to the sphere disposed within the valve body; the valve cover is fixed to the opening of the cavity of the valve body by screws, to seal the cavity of the valve body; the sphere spherically fits with the support valve seat and the sealing valve seat; the support sleeve and the spring are provided between the support valve seat and the valve body; the spring presses the support sleeve and the support valve seat such that the support valve seat clings to the sphere; the support sleeve is fixedly connected to the valve body by the assembly screw.