| 摘要 |
A multi-position valve distributor includes pilot distributors and hydro-controlled distributor with hydro-controlled mounted-in valves placed in common body that comprise shell with seat, spring supported gate and flange that form in direction of flow three cavities: “before gate”, “after gate” and “after seat”– between the cavities “before gate” and “after gate”, at that in the body of hydro-controlled distributor channels are provided, those connect the cavities “after gate” to outlet channels of pilot distributors, channel for pressure supply, output channels and discharge channel of hydro-controlled distributor and channels connecting discharge channels of pilot distributors with discharge channel of hydro-controlled distributor. In the gates of the valves throttle opening is provided, this connects the cavities “after gate” and “before bate”. In the cavity “after gate” additional gate is provided with possibility to close throttle opening in the gate of the valve that is support for the main gate, and the spring is placed between the main and additional gates, at that in the body channels are provided, those connect the valves is pairs” cavity “after seat” of one valve to cavity “before gate” of the other valve and with one of output channels of hydro-controlled distributor, cavity “before gate” with channel for pressure supply, cavity “after seat” of the other valve with discharge channel of hydro-controlled distributor, and channels connecting output channels of each pilot distributor to cavities “after gate” of connected in pairs valves. Channel for pressure supply of pilot distributors is closed. |
