发明授权
- 专利标题: Fluid pressure reduction device with integral guides
- 专利标题(中): 带集成导轨的流体减压装置
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申请号: US09782143申请日: 2001-02-13
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公开(公告)号: US06382253B1公开(公告)日: 2002-05-07
- 发明人: Michael Wildie McCarty , Mark Edward Byer , Douglas Paul Gethmann , James Leroy Gossett
- 申请人: Michael Wildie McCarty , Mark Edward Byer , Douglas Paul Gethmann , James Leroy Gossett
- 主分类号: F16K1104
- IPC分类号: F16K1104
摘要:
A fluid pressure reduction device for use with a fluid valve control member movable through the device. The pressure reduction device is formed of a plurality of stacked disks having an outer perimeter and an inner perimeter defined by a hollow center aligned along a longitudinal axis. The disks are formed in a cage assembly for receiving the fluid valve control member within the hollow center along the inner perimeter. The stacked disks include a plurality of longitudinal channels formed in the disk around the inner perimeter. Guide members formed of a metal harder or at least with greater wear resistant characteristics than the disks are provided in each of the longitudinal channels. The guide members are adapted to the inner perimeter for guiding the fluid valve control member in movements through the hollow center for reducing wear on the inner perimeter. It is preferred that the guide members comprise longitudinal rods inserted within each channel. Alternatively, longitudinal weld bead strips can be welded within the channels.
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