公开(公告)号：US3906584A

公开(公告)日：1975-09-23

申请号：US41856073

申请日：1973-11-23

申请人： VERNCO CORP

发明人： HULT DAVID R

IPC分类号： A47L5/14

CPC分类号： A47L5/14 ,  Y10S55/03

摘要： A vacuum cleaner having a blower feature as well as a pickup feature, the cleaner comprising a tank having an interior space for receiving dirt and debris, a blower assembly mounted on the tank and comprising a housing defining an interior space in communication with the interior space of the tank through an inlet passage, and a motor-driven blower for moving air from the tank through the inlet passage into the housing. The housing provides a discharge port proportioned and constructed such that a blower hose can be connected thereto, and said housing also provides discharge vents for its said interior space, the discharge vents being in addition to and separate from the discharge port. The discharge vents or bleed-off vents are proportioned to bleed off from approximately 60 to 80% of the air drawn through the inlet passage. The bleed-off vents extend about substantially the whole peripheral extent of the blower housing, the vents being axially relatively narrow and considerably less in axial depth than the axial depth of the interior space of the blower housing. The blower includes a centrifugal blower wheel with a center opening such that it delivers air radially outwardly toward the said bleed-off vents.

摘要翻译： 一种具有鼓风机特征以及拾取特征的真空吸尘器，所述清洁器包括具有用于接收污物和碎屑的内部空间的罐;安装在所述罐上的鼓风机组件，包括限定与所述内部空间连通的内部空间的壳体 通过入口通道和电动机驱动的鼓风机，用于将空气从罐通过入口通道移动到壳体中。 壳体提供了一个排气口，其排气口的比例和结构使得鼓风软管可以连接到其上，并且所述壳体还为其所述内部空间提供排放通风口，排放口是排出口的另外和与排出口分开的。 排放通风口或泄放通风口成比例，从通过入口通道吸入的空气的大约60％至80％排出。 排放通气口基本上围绕鼓风机壳体的整个外围区域延伸，通风口在轴向上相对较窄并且轴向深度远小于鼓风机壳体的内部空间的轴向深度。 鼓风机包括具有中心开口的离心鼓风机轮，使得其向着径向向外的空气朝向所述泄放通风口输送空气。