| 摘要 |
A pulse shutoff-discharge valve includes a body with channels for liquid inflow and outflow, there seat of the valve is installed, with that the channels for liquid inflow and outflow are separated, and a hydro-cylinder coaxial to the seat, in which the valve is placed and is guided by it, that is arranged as a rod with shutoff plate at one end and a piston at the other end, with that cavity is formed behind the piston between the bottom of hydro-cylinder and the piston of the valve, this is connected to the working cavity of the hydro-system through a throttle. In the piston cavity safety spring-supported valve is installed. In the cavity of hydro-cylinder behind d the piston two supplementary spring shutoff valves with output to the channels for liquid inflow and outflow are placed, those provide possibility of cyclic change of pressure in the cavity. The valve seat is installed to the central opening of the plate spring that is fixed in the body of the valve with possibility of fit to support. |
