发明授权
US07635217B2 Extruder having variable mid-barrel restriction and adjacent high intensity mixing assembly
有权
挤出机具有可变的中筒限制和相邻的高强度混合组件
- 专利标题： Extruder having variable mid-barrel restriction and adjacent high intensity mixing assembly
- 专利标题（中）： 挤出机具有可变的中筒限制和相邻的高强度混合组件
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申请号： US11969207申请日： 2008-01-03
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公开(公告)号： US07635217B2公开(公告)日： 2009-12-22
- 发明人: Galen J. Rokey , Brian S. Plattner
- 申请人： Galen J. Rokey , Brian S. Plattner
- 申请人地址： US KS Sabetha
- 专利权人： Wenger Manufacturing, Inc.
- 当前专利权人： Wenger Manufacturing, Inc.
- 当前专利权人地址： US KS Sabetha
- 代理机构： Hovey Williams LLP
- 主分类号： B29B7/48
- IPC分类号： B29B7/48 ; B29B7/74
摘要：
Improved, high Specific Mechanical Energy extrusion systems (20) are provided including a single or twin extruder (22) and an upstream preconditioner (24). The extruder (22) includes an elongated barrel (26) with at least one elongated, axially flighted, rotatable screw assembly (58) therein. The barrel (26) includes a mid-barrel variable restriction valve assembly (32), and the screw assembly (58) has a disrupting/homogenizing screw section (66) therein upstream of the valve assembly (32). The screw section (66) includes a plurality of alternating pitch screw parts (82-92). Preferably, the barrel (26) also has an atmospheric vent (36) downstream of the valve assembly (32).