发明名称 |
SPIRALGEHAEUSE FUER EINEN ZENTRIFUGALLUEFTER, EIN GEBLAESE ODER DERGLEICHEN |
摘要 |
A volute housing is disclosed for use with a centrifugal fan, blower or the like, and includes a housing body defined by opposite spaced sidewalls, a volute peripheral wall disposed between the sidewalls and defining therewith and with an impeller a volute chamber, and the sidewalls each having a generally minimum radial dimension located at a tongue of the volute chamber which progressively increases to a maximum radial dimension located at a throat of the volute chamber. The sidewalls include first sidewall portions which are generally parallel to each other between the tongue and a transition zone 180 DEG therefrom, and second sidewall portions of the sidewalls from the transition zone to the volute throat at approximately 360 DEG are in diverging relationship in a direction away from the transition zone whereby fluid/air flowing through the housing body expands progressively axially outwardly as it flows between and along the second sidewall portions. |
申请公布号 |
DE4140129(A1) |
申请公布日期 |
1992.07.23 |
申请号 |
DE19914140129 |
申请日期 |
1991.12.05 |
申请人 |
SULLIVAN, JOHN T., HYATTSVILLE, MD., US |
发明人 |
SULLIVAN, JOHN T., HYATTSVILLE, MD., US |
分类号 |
F04D29/42;F04D29/60;F04D29/62 |
主分类号 |
F04D29/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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