发明名称 |
SNOWMAKING APPARATUS AND METHODS |
摘要 |
SNOWMAKING APPARATUS AND METHODS An improved ducted-fan type snowmaking machine and method wherein an impeller is driven at a variable speed selected to produce a variable noise level depending on the proximity of the apparatus to an inhabited area. The machine includes air stream straightening vanes for converting a spiraling stream to a linear, laminar flow stream, and a plurality of neucleating nozzles positioned within the confines of the duct.
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申请公布号 |
CA2057958(A1) |
申请公布日期 |
1992.07.12 |
申请号 |
CA19912057958 |
申请日期 |
1991.12.18 |
申请人 |
SNOW MACHINES INCORPORATED |
发明人 |
VANDERKELEN, JAMES B.;TOPHAM, WILLIAM C.;KOENIG, DONALD R.;VANDERKELEN, JOSEPH M. |
分类号 |
F04D27/02;F25C3/04;(IPC1-7):F25C3/04 |
主分类号 |
F04D27/02 |
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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