초록 ▼

A draft inducer blower for high efficiency furnaces, including a blower housing which provides enhanced contact between the blower housing and the furnace collector box to reduce the flexing and vibration between the blower housing and the collector box. The blower housing includes contact structure

A draft inducer blower for high efficiency furnaces, including a blower housing which provides enhanced contact between the blower housing and the furnace collector box to reduce the flexing and vibration between the blower housing and the collector box. The blower housing includes contact structure which provides a direct abutting contact relationship between the blower housing and the collector box at least along a substantial periphery of the blower housing and/or at one or more rigid transition points on the collector box. In one embodiment, the contact structure can be part of the blower housing body and/or the blower housing cover. In another embodiment, the contact structure can be part of the collector box or furnace to which the blower housing is mounted. When fasteners secure the blower housing to the collector box, the contact structure provides a substantially integral rigid construct between the blower housing and the collector box.

대표청구항 ▼

What is claimed is: 1. A blower housing having an outer periphery and a central axis defining perpendicular axial and radial directions, comprising:a housing body including a top wall, a side wall, and a plurality of mounting lugs disposed around said side wall;a housing cover including a bottom wal

What is claimed is: 1. A blower housing having an outer periphery and a central axis defining perpendicular axial and radial directions, comprising:a housing body including a top wall, a side wall, and a plurality of mounting lugs disposed around said side wall;a housing cover including a bottom wall, said housing cover fittable to said housing body with said mounting lugs extending in the axial direction beyond said housing cover bottom wall; andat least one contact structure integrally formed with one of said housing body and said housing cover, said contact structure extending along at least a substantial portion of the blower housing periphery and extending in the axial direction a distance greater than said mounting lugs.