Patent ID: 9671796
Date: 2017-06-06
CPC Classifications: B01D,B60T,F16K,G05D,Y10T

Claim:
1. A pressure governor comprising: an input port into which air is input; a control output port from which a control order pressure is output to outside the pressure governor; a first valve provided in a first valve chamber, wherein the first valve opens at a first pressure; and a second valve provided in a second valve chamber which is in communication with the first valve chamber, wherein the second valve opens at a second pressure, the second valve chamber being provided independently and separately from the first valve chamber, wherein the pressure governor does not output the control order pressure from the control output port during a first process when an air pressure in the input port increases from the first pressure to the second pressure, which is higher than the first pressure, outputs the control order pressure from the control output port to outside the pressure governor during a second process when the air pressure in the input port is decreased to the first pressure after reaching the second pressure, and stops the output of the control order pressure when the air pressure in the input port returns to the first pressure.