| 摘要 |
<p>PURPOSE:To discharge compressed air accumulated by a pressure pump apparatus, by providing a valve body for allowing an emitting port and a discharge port to communicate with each other through a valve seat when a suction port is not pressurized and blocking the discharge port from the emitting port by the pressure contact with the valve seat when said suction port is pressurized. CONSTITUTION:When pulsating compressed air is supplied to an emitting port 11a, the pressure of the compressed air becomes larger than the pressing pressure of a spring 13 to push up a packing 12 toward a container 14. At this time, a groove 14c comes to face to the packing 12 to form the narrow passage corresponding to the passage from a recessed part 14b to a recessed part 14g. Therefore, the compressed air supplied from a suction port 11a is accumulated in the air chamber formed to a recessed part 11b through a stopper 11f to be sent in the narrow passage through a communication port 12b. This compressed air is attenuated in pulsation by the narrow passage high in air resistance to reach the recessed part 14g and emitted from an emitting port 14a. As mentioned above, a pressure controller has the function of removing the pulsation of the compressed air supplied from the pressure pump apparatus.</p> |
