发明授权
- 专利标题： Roots type fluid machine
- 专利标题（中）： 根型流体机
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申请号： US11608615申请日： 2006-12-08
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公开(公告)号： US07320579B2公开(公告)日： 2008-01-22
- 发明人: Takayuki Hirano , Kazuho Yamada , Toshiro Fujii
- 申请人： Takayuki Hirano , Kazuho Yamada , Toshiro Fujii
- 申请人地址： JP
- 专利权人： Kabushiki Kaisha Toyota Jidoshokki
- 当前专利权人： Kabushiki Kaisha Toyota Jidoshokki
- 当前专利权人地址： JP
- 代理机构： Woodcock Washburn LLP
- 优先权： JP2005-355957 20051209
- 主分类号： F01C21/10
- IPC分类号： F01C21/10 ; F03C2/00 ; F04C2/00
摘要：
A roots type fluid machine includes a housing, a pair of parallel rotary shafts and two-lobe rotors. Each rotor includes two lobe portions and two well portions. Each lobe portion has a profile of convex arc with a radius R and each well portion has a profile of concave arc which is an envelope of the convex arc of the lobe portion. The rotor has a configuration defined by a curve which includes the convex arc, the concave arc and further an involute curve with a base radius r between the convex and concave arcs. The base radius r is set in a range L/(2√{square root over ( )}2)
公开/授权文献
- US20070148030A1 ROOTS TYPE FLUID MACHINE 公开/授权日：2007-06-28
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