|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/220 ; 137/221 ; 137/492 ; 251/28|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 11 인용 특허 : 0|
A fast opening plug valve especially for release of high pressure gas. The plug has an internal chamber and is held in the closed position by the pressure of gas within this chamber which acts on a fixed wall. The opening stroke is driven by valve inlet pressure upon release of gas from the plug chamber to a dump chamber. Flow from the plug chamber to the dump chamber is choked towards the end of the valve opening cycle to decelerate the plug. Plug acceleration at the start of the opening cycle is commenced prior to opening to minimize the opening period...
A fast opening valve having an opening movement driven by inlet pressure, comprising an inlet port, an outlet port, a valve passage linking said ports, a plug, a plug mounting which permits movement of the plug to and fro between a forward position thereof in which the plug closes the valve passage and a rearward position in which the plug lies clear of the valve passage on the outlet port side thereof, a wall member which is fixed in relation to the plug mounting, a chamber with the plg which defines in combination with the wall member a pressurizable c...