Fluid pressure controller
AssigneeSMC Corporation
InventorsNaoto Inayama, Tohru Inohara
Life of this patent
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Abstract
A fluid pressure controller has an air supply valve plug displaceable under an action of pilot pressure of a pilot chamber. When the air supply valve plug is seated on a seat section, fluid communication between a supply port and a regulator port is interrupted. Further, the fluid pressure controller has a solenoid valve. When electric power supply to the solenoid valve is interrupted, the solenoid valve is opened to generate pilot pressure applied to the air supply valve plug by the original pressure of pressurized fluid introduced from the pressurized fluid supply source to the supply port.
Claims6
A fluid pressure controller for supplying fluid regulated at a predetermined reduced pressure to a fluid pressure apparatus operated under fluid pressure, said fluid pressure controller comprising:
- a housing having a supply port connected to a pressurized fluid supply source and a regulator port connected to said fluid pressure apparatus;
- a control mechanism for controlling pilot pressure;
- a valve seat;
- a valve plug displaceable in said housing under an action of pilot pressure, said valve plug interrupting fluid communication between said supply port and said regulator port when seated on said valve seat;
- and
- a solenoid valve in said housing,
- wherein when electric power supply to said solenoid valve is interrupted, said solenoid valve is opened to generate pilot pressure applied to said valve plug by pressurized fluid introduced from said pressurized fluid supply port to the supply port.
Dependencies are inferred from the claim text.