Pressure Regulator
OwnerYasuaki Nakamurainventor
Life of this patent
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Abstract
A main valve reduces an unregulated pressure of a high-pressure gas to a regulated pressure by being interlocked with a diaphragm, which receives the regulated pressure within a pressure regulating chamber and is displaced. A subsidiary valve is interlocked with the main valve through a plunger and reduces the unregulated pressure of the high-pressure gas to the regulated pressure. The subsidiary valve is located such that the force, which accompanies a pressure loss occurring at the subsidiary valve and which the subsidiary valve receives, cancels the force, which accompanies the pressure loss occurring at the main valve and acts upon the plunger. An adjustor adjusts a pressure loss value occurring at the subsidiary valve so as to be equal to the pressure loss value occurring at the main valve.
Claims13
A pressure regulator, comprising:
- i) a first-stage governor system, which is provided with a first regulating valve for reducing an unregulated pressure of an introduced gas to an intermediate pressure, and
- ii) a second-stage governor system, which is provided with a second regulating valve for reducing the intermediate pressure to a regulated pressure,
- the first-stage governor system and the second-stage governor system being located such that a direction of displacement of a first diaphragm of the first-stage governor system, which first diaphragm operates the first regulating valve of the first-stage governor system, and the direction of the displacement of a second diaphragm of the second-stage governor system, which second diaphragm operates the second regulating valve of the second-stage governor system, intersect with each other.
Dependencies are inferred from the claim text.