| 摘要 |
<p>This invention is directed towards a valve for protecting an enclosure from a shock wave which causes a transient increase in pressure. The valve comprises a duct, a valve seat, a valve plate supported by at least one spring and at least one frangible support. When the at least one frangible support is fractured, the valve plate is movable into contact with the valve seat and forms a seal therewith to close off the duct. The dimensions and material properties of the at least one frangible support are selected such that the at least one frangible support fractures when a shock wave contacts the valve plate.</p> |
