公开(公告)号：US3563271A

公开(公告)日：1971-02-16

申请号：US3563271D

申请日：1968-11-01

申请人： KAZUYOSHI MARUMO ,  TETSUO KUKUMINATO ,  YOSHIHIRO NAKADA

发明人： MARUMO KAZUYOSHI ,  KUKUMINATO TETSUO ,  NAKADA YOSHIHIRO

IPC分类号： F16K11/065 ,  F15C3/02

CPC分类号： F15C3/02 ,  Y10T137/8667

摘要： The present invention relates to a flat slide valve characterized in that a pair of spacers and a slide board having connecting ports and pressure balancing holes are fitted intimately between two guide plates having valve holes and pressure balancing holes, with the thickness of said slide board being formed slightly thinner than that of the spacers, and that the pressure balancing holes for preventing augmentation of controlling power of the slide board by fluid pressure are formed in communication with the corresponding valve holes in said two guide plates and said spacers.