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1. 发明专利

JPH0560489A LIQUID FIRING CARTRIDGE INCREMENT 失效
公开(公告)号：JPH0560489A
公开(公告)日：1993-03-09
申请号：JP80001688
申请日：1988-10-25
申请人： GEN ELECTRIC
发明人： MERUBUIN JIEI BARUMAN
IPC分类号： F41A1/00 , F41A1/04 , F41C7/00 , F41F1/00 , F42B12/00
摘要： PURPOSE: To isolate a device charged with a liquid bursting charge from impact pressure waves generated in a combustion chamber, by making the liquid bursting charge to be made to flow in the combustion chamber from a supply chamber under a relatively low pressure, and providing a check valve which prevents the impact pressure waves from being fed back to a supplier at the time of firing. CONSTITUTION: Prior to firing, a differential valve 36 is maintained at an upper- half position by means of an external compression spring 210 connected to a rod 78 and the surface 66 of the head 62 of the valve 36 closes a radial internal cavity 126 so as to prevent a liquid bursting charge from flowing to the cavity 126 from a pump cavity 118. In the initial stage of firing, the liquid pressure in the pump cavity 118 rises and is communicated with a valve cavity 72. When the pressure applied to the rear surface of a washer 206 increases beyond the pressure applied to the front surface of the washer 206, the washer 206 is flattened and closes a passage 77 against the peculiar spring force of the washer 206 and intercepts a charging cavity 56 and a device in front of the cavity 56 from a ballistic fluid pressure which is generated at firing time.

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