Invention Grant
US09004067B2 Single or multiple stage blower and nested volute(s) and or impeller(s) thereof 有权
单级或多级鼓风机和嵌套蜗壳及其叶轮

Single or multiple stage blower and nested volute(s) and or impeller(s) thereof
Abstract:
An impeller includes a top shroud, a bottom shroud, and a plurality of vanes extending from the top shroud to the bottom shroud. The top and bottom shrouds are generally planar, and a lower edge of each vane tapers from an outer edge of the bottom shroud to a transverse tip edge thereof.
Information query
Patent Agency Ranking
0/0