发明名称 |
MODEL AIRPLANE MUFFLER CONSTRUCTIONS |
摘要 |
A lightweight sheet metal model airplane muffler in the form of a hollow shell having symmetrical airfoil characteristics and defining an internal expansion chamber for exhaust gases. Outlet ports are provided in the camber regions of the shell where they communicate with the vacuum pockets which are established by the slipstream during flight and the low pressure air in such pockets assists in evacuating the chamber.
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申请公布号 |
US3669216(A) |
申请公布日期 |
1972.06.13 |
申请号 |
USD3669216 |
申请日期 |
1971.07.06 |
申请人 |
DONALD H. SPIES |
发明人 |
DONALD H. SPIES |
分类号 |
F01N1/08;F01N13/18;F02B9/06;F02B27/04;F02B75/34;(IPC1-7):F01N1/08;F01N1/14;F01N7/10 |
主分类号 |
F01N1/08 |
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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