PREMIXING DEVICE AND COMBUSTION DEVICE EQUIPPED WITH THE PREMIXING DEVICE
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United States of America
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Issued Date -
Dec 23, 2021
app pub date -
Jun 16, 2021
filing date -
Jun 16, 2021
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Abstract
A premixing device includes: a gas flow passage forming member in which an x direction is used as an axial length direction, and a Venturi-shaped gas flow passage into which air can flow in from the outside is formed inside; and a blade portion positioned in the gas flow passage, extending in a y direction, and equipped with a fuel gas outlet. The blade portion includes first and second blade portions spaced apart from each other in a z direction, and an air flow path near the center through which a part of the air flows is formed between these first and second blade portions. At least one of a pair of surfaces of the first and second blade portions facing each other is equipped with an inner bulging portion that bulges in the z direction so as to squeeze a part of the air flow path near the center.
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