Patent ID: 6425281
Filing Date: 2002-07-30
Classification: G01F,Y10T

Abstract:
A gas process device, comprising:a gas inlet; a gas outlet; a first restriction having an inlet and an outlet, the inlet of the first restriction being fluidly coupled to the gas inlet of the gas process device; a flow sensor having an inlet and an outlet, the inlet of the flow sensor being fluidly coupled to the outlet of the first restriction, the flow sensor being constructed to provide a flow signal indicative of a flow of gas through the gas process device; and a second restriction having an inlet and an outlet, the inlet of the second restriction being fluidly coupled to the outlet of the flow sensor and the outlet of the second restriction being fluidly coupled to the gas outlet of the gas process device; wherein one of the first restriction and the second restriction includes a control valve that. modulates the flow of gas through the gas process device based on the flow signal.