专利内容由知识产权出版社提供
专利名称：Apparatus for pressure detection and
control of a safety valve
发明人：Francois Gemignani申请号：US06/022159申请日：19790320公开号：US04291721A公开日：19810929
摘要：A safety valve for a pressure vessel, e.g. a marine boiler, comprises a piston-operated valve mounted on the pressure vessel and provided with a cylinder which isconnected to a pressure detector. According to the invention, a pair of juxtaposedcontrol valves are provided for selectively opening and blocking communication betweenthe cylinder and the pressure vessel and between the cylinder and the atmosphere,respectively, these control valves being actuated by an element disposed between themand connected by a rod to a control piston which is displaced by the pressure in thevessel against the force of an adjustable spring.
申请人：GEMIGNANI; FRANCOIS
代理人：Karl F. Ross
更多信息请下载全文后查看
