发明名称 |
Muffler for gas inducting machinery generating low frequency noise |
摘要 |
A muffler for silencing low frequency noise of gas inducting machinery. The muffler includes a buffer reservoir having an inlet and an outlet. The outlet communicates with the gas inlet of the machine. The buffer reservoir has a volume of between twenty and thirty times the displacement of the largest equivalent cylinder of the gas inducting machinery. For a single piston compressor this would be a volume of ten to fifteen times the effective cylinder displacement of the compressor. A convergent/divergent nozzle is connected to the reservoir inlet. The nozzle throat is specially dimensioned relative to the machinery to pass the gas through it to the gas inlet at a throat velocity in the range of Mach 0.7 to 1. A suitable preswirler may be connected to the inlet of the nozzle to reduce the pressure drop across the nozzle.
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申请公布号 |
US4693339(A) |
申请公布日期 |
1987.09.15 |
申请号 |
US19860919439 |
申请日期 |
1986.10.16 |
申请人 |
NEWPORT NEWS SHIPBUILDING AND DRY DOCK COMPANY |
发明人 |
BEALE, MICHAEL C.;KASHY, DAVID H. |
分类号 |
F02M35/12;(IPC1-7):F01N1/08 |
主分类号 |
F02M35/12 |
代理机构 |
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