| 摘要 |
<p>A gas flow regulator comprises a member (26) adjusting the open degree of a throttle valve by adjusting the inclination of a flap (21) with respect to a cross-section area of a channel (25). Means (27) is configured to measure a pressure difference of a gas flowing in the channel by sensing a gas pressure at two positions located directly on said flap on opposite sides thereof. An arrangement has access to gas flow rate characteristics in the form of a so-called C-factor of the throttle valve in dependence of the inclination angle of the flap and is configured to determine the actual gas flow rate from said pressure difference measured and said inclination angle of the flap. The control device (37) is configured to control the member (26) pivoting the flap for adjusting the actual gas flow rate value determined to be a target value for the gas flow rate.</p> |
