| 摘要 |
<p>A valve for the simultaneous delivery of two liquid substances under pressure in separate concentric containers (17, 18) has a cylindrical valve housing (1) which is sealed at one end by an outer annular seal (2) through which a manually operated opening and delivery shaft (4) can be moved, counter to the force of a spring (3) which restores it to the closed position, as required and in a manner which maintains the seal, at least one blind axial channel (5) being constructed in said opening and delivery shaft. The valve is to be of simple construction, to be producible in a cost-effective manner and to operate satisfactorily, for which reason the valve housing (1) is sub-divided by an inner annular seal (8), in which the operating shaft (4) can be moved in a manner which maintains the seal, into two chambers (6, 7) which are located axially one above the other and communicate constantly with the respectively assigned container (17, 18), and the operating shaft (4) has two radial apertures (9, 10) which communicate with an assigned axial channel (5, 11, 12) and are connected in the open position to the respectively assigned chamber (6, 7), whereas they are separated from both chambers (6, 7) in the closed position. …<IMAGE>… </p> |
