<p>A gas valve which has provision for a reverse flow pulse of high pressure gas. The valve includes a reservoir (53) which is loaded with high pressure gas during normal operation which is released into the main flow path by an applied pressure reduction. The valve is fitted to a porous ceramic "candle" filter (1) between dirty (D) and clean (C) gas zones. The high pressure gas pulse reverses flow through the filter (1) and blows off any aggregated dirt. A shut-off valve (43) is arranged to shut the valve in the event the ceramic filter (1) breaks. The valve is efficient and uses only a metered amount of high pressure gas with little loss of pressure between supply and flushing. <IMAGE></p>
申请公布号
DE69311269(T2)
申请公布日期
1997.10.16
申请号
DE1993611269T
申请日期
1993.10.27
申请人
EUROPEAN GAS TURBINES LTD., LINCOLN, GB
发明人
ROYLE, ERIC EDWARD, WIGSTON, LEICESTERSHIRE LE18 2GP, GB