公开(公告)号：US6041774A

公开(公告)日：2000-03-28

申请号：US191184

申请日：1998-11-13

申请人： John M. Ward ,  Gregory Kolecki

发明人： John M. Ward ,  Gregory Kolecki

IPC分类号： F24C15/20

CPC分类号： F24C15/20

摘要： An overhead ventilation hood for a ventilation system of a conventional cooking appliance. The hood includes a housing with a planar base surface and a recessed interior arrayed in a downwardly facing manner which is defined by a first side, a second spaced apart side, a first interconnecting end and a second interconnecting end. Intake and exhaust openings are formed through the housing proximite the first and second sides. The ventilation system includes a first blower mounted in communication with a first length of ductwork extending to the intake opening to provide a stream of pressurized intake air and a second blower mounted in communication with a second length of ductwork extending from the exhaust opening to provide a stream of pressurized exhaust air. A supply plenum chamber is established along the first side of the housing interior and includes elongate and planar shaped channeling walls and a planar shaped diffuser for regulating a flow of the stream of pressurized air into a central open interior of the housing. An exhaust plenum chamber is established along the second side of the housing interior and includes an elongate planar shaped and angularly mounted filter. Combinations of heat, airborne grease and smoke are issued upwardly from the cooking appliance within the open interior of the hood and are discharged through the filter and within the stream of exhaust air concurrent with intermixing with the regulated flow of the stream of intake air. An elongate and planar shaped deflector extends in proximity to a bottom edge of the angularly disposed filter at a further specified angular orientation and causes a deflected stream of exhaust air to be redirected towards the filter for evacuation from the housing.

摘要翻译： 用于常规烹饪器具的通风系统的架空通风罩。 罩包括具有平面基面的壳体和以向下的方式排列的凹陷内部，该内部由第一侧，第二间隔开的侧面，第一互连端和第二互连端限定。 通过壳体在第一和第二侧附近形成进气口和排气口。 通风系统包括：第一鼓风机，其安装成与延伸到进气口的第一长度的管道系统连通，以提供加压进气的流;以及第二鼓风机，其与从排气口延伸的第二长度的管道系统连通， 加压排气的流。 沿着壳体内部的第一侧建立供气室，并且包括细长和平面形状的通道壁和用于调节加压空气流流入壳体的中心开口内部的平面形扩散器。 沿着壳体内部的第二侧建立排气增压室，并且包括细长的平面形状和角度安装的过滤器。 发热体，空气传播的油脂和烟雾的组合在罩的开放内部从烹饪器具向上发出，并且通过过滤器和排气中的排出物同时与进气的调节流混合。 细长和平面形的偏转器在另外指定的角度方向上靠近角度布置的过滤器的底部边缘延伸，并且使得偏转的废气流朝向过滤器重新引导以从壳体排出。