| 摘要 |
<p>CONTROL SPOOL VALVE A spool valve having a pressure inlet port, a work port and a tank port. A spool valve is responsible for selectively communicating the pressure inlet port to the work port and the work port to the tank port. The work port is located between the pressure inlet port and the tank port. The spool contains a passageway which receives fluid from the pressure inlet port and directs the fluid between the work port and the tank port to provide a pressurized fluid seal between the work port and the tank port.</p> |
