| 摘要 |
<p>In a pulse combustion device including a housing (10) forming therein a combustion chamber (11), a cylindrical support member (12) joined to the housing to form a mixing chamber (16) in open communication with the combustion chamber, an annular perforated flange member (25) coupled with an open end of the support member, a cylindrical member (21) mounted in the center of the flange member to form a gas passage (22) in open communication with the mixing chamber, a flapper-type air inlet valve assembly (30) mounted on the flange member, and a flapper-type gas inlet valve assembly (50) disposed within the cylindrical member. The air inlet valve assembly includes an annular valve plate (31) formed with a plurality of circumferentially equi-spaced circular air ports (41) and being secured to annular end surfaces of the flange member and the cylindrical member, and a plurality of circumferentially equi-spaced air inlet valve units (40) mounted on the valve plate on a common circular path concentric with the gas passage. The air inlet valve units each includes a circular perforated backer plate (42) arranged within the mixing chamber to oppose each of the air ports and fixed to the valve plate through a spacer (44), and a circular air flapper (43) movable between the valve plate and the backer plate. </p> |
