公开(公告)号：US4624441A

公开(公告)日：1986-11-25

申请号：US417069

申请日：1982-09-13

申请人： Morton A. Kreitchman ,  Kurt Arnold

发明人： Morton A. Kreitchman ,  Kurt Arnold

IPC分类号： F16K31/40 ,  F16K31/42 ,  F16K31/11

CPC分类号： F16K31/406

摘要： A pilot-operated valve suitable for pontoon inflation arrangements contains a main valve poppet urged against a valve seat connecting the inlet and outlet ports of the valve. A portion of the inlet pressure urges a piston carrying the valve poppet away from the valve seat, but this is resisted by a portion of the inlet pressure acting in a pressure volume on the opposite side of the piston. By way of an electrical signal, a manual operation or pneumatic pressure, a pilot valve is opened so as to relieve the pressure on the main valve poppet tending to close it. This allows the valve to open and fluid to pass through the valve assembly. Once the pilot valve has opened pressure from the inlet is applied within the pilot valve to hold it in the open position until the inlet pressure has been substantially reduced. Operation of the pilot valve also allows inlet pressure to be applied to a crossover connection of the valve. Thus a series of valves with their crossover connections connected together will all be operated, if one of them is operated so as to generate pressure in the crossover line.

摘要翻译： 适用于浮筒膨胀装置的先导式操作阀包含主阀提升阀，该主阀提升阀抵靠连接阀门入口和出口的阀座。 入口压力的一部分促使携带阀提升阀的活塞远离阀座，但是这受到入口压力作用在活塞相对侧上的压力容积中的一部分的抵抗。 通过电信号，手动操作或气动压力，打开导向阀，以便减轻主阀提升阀上的压力以使其闭合。 这允许阀打开并且流体通过阀组件。 一旦先导阀已经打开来自入口的压力被施加在先导阀内以将其保持在打开位置，直到入口压力已经大大降低。 先导阀的操作还允许将入口压力施加到阀的交叉连接。 因此，一系列连接在一起的交叉连接的阀都将被操作，如果其中一个阀被操作以在交叉线中产生压力。

公开(公告)号：US4561468A

公开(公告)日：1985-12-31

申请号：US369664

申请日：1982-04-19

申请人： Morton A. Kreitchman ,  Kurt Arnold

发明人： Morton A. Kreitchman ,  Kurt Arnold

IPC分类号： F02C7/232 ,  F16K31/06 ,  F16K31/12 ,  F16K31/40

CPC分类号： F16K31/0627 ,  F02C7/232 ,  Y02T50/672 ,  Y10T137/7834 ,  Y10T137/86895

摘要： A valve is formed with a valve chamber and with an entrance port, a first exit port and a relief exit port each of which communicates with the chamber. A valve member is movably mounted within the chamber, and a pair of valve seats is mounted within the chamber for cooperation with the valve member, one of the seats being movable. The valve member and movable seat are biased in such a manner that the valve is normally seated with respect to both seats. When fluid in the entrance port exceeds a certain crack pressure, the movable seat moves away from the valve member and the fluid flows out the relief exit port. To stop flow out the relief exit port without creating a pressure surge, the valve member, actuated by a control, seats against the movable seat and at the same time moves away from the other seat so that the fluid continues to circulate through the first-named exit port. The valve is particularly adapted for efficient control of the flow of fuel during start-up, operation and shutdown of the jet engine of an aircraft.

摘要翻译： 阀门形成有阀室，并具有入口，第一出口和排泄出口，每个出口与腔室连通。 阀构件可移动地安装在腔室内，并且一对阀座安装在腔室内，用于与阀构件配合，其中一个座可移动。 阀构件和活动座以这样的方式被偏置，使得阀相对于两个座通常就座。 当入口处的流体超过一定的裂纹压力时，可移动的座移动离开阀构件，流体从排出口流出。 为了在不产生压力浪涌的情况下停止流出泄放出口，由控制器致动的阀构件抵靠着可动座并且同时移动离开另一个座，使得流体继续循环通过第一 - 命名出口。 该阀特别适用于在飞行器的喷气发动机的启动，运行和停机期间对燃料流的有效控制。