Patent ID: 9709264
Date: 2017-07-18
CPC Classifications: F23D,F23L,F23N,F24H

Claim:
1. A dual venturi comprising, a tubular part, as a circular duct through which air and gas pass through, having a primary gas inlet; a damper part comprising: a driving part, connected to a left lateral surface of the damper part via a rotational shaft, for rotationally driving the damper part in the horizontal and vertical planes; and a secondary gas inlet for introducing a secondary gas into the tubular part via the damper part through a gas inlet-side secondary gas outlet, which connects selectively to the damper part-side secondary gas outlet on the basis of a rotational position of the damper part, wherein the secondary gas inlet is cylindrically shaped, and is inserted into a right lateral surface of the damper part, wherein a central axis of the rotational shaft is coaxial with a central axis of the secondary gas inlet such that the body part is rotated about the secondary gas inlet by the driving part, and wherein the primary gas inlet faces the cutout part when the body part is placed in the horizontal direction.