发明授权
US07905709B2 Advanced firtree and broach slot forms for turbine stage 1 and 2 buckets and rotor wheels
有权
用于涡轮机1级和2级铲斗和转子轮的先进的开槽和开槽槽形式
- 专利标题： Advanced firtree and broach slot forms for turbine stage 1 and 2 buckets and rotor wheels
- 专利标题（中）： 用于涡轮机1级和2级铲斗和转子轮的先进的开槽和开槽槽形式
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申请号： US10774400申请日： 2004-02-10
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公开(公告)号： US07905709B2公开(公告)日： 2011-03-15
- 发明人: Benjamin Arnette Lagrange , Timothy Brian Lloyd
- 申请人： Benjamin Arnette Lagrange , Timothy Brian Lloyd
- 申请人地址： US NY Schenectady
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： US NY Schenectady
- 代理机构： Nixon & Vanderhye P.C.
- 主分类号： F01D5/30
- IPC分类号： F01D5/30
摘要：
A turbine bucket and wheelpost assembly reduces the number of buckets in at least one of the stages of the turbine from 92 to 60 while reducing stresses at the assembly points of the buckets and wheelposts. The buckets and wheelposts being formed with complementary fillets and tangs that provide for the insertion of the bucket into the broach slot between two wheelposts. The angles of the tang surfaces on both the bucket and wheelpost range from 50° to 57°. The upper surface of the wheelpost is scalloped to reduce weight and the tangs and fillets of both the bucket and wheelpost are formed from curved and straight surfaces to reduce stresses on the assembly.
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