Patent ID: 11939983
Assignee: ACCESSIBLE TECHNOLOGIES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. A geared centrifugal blower, comprising:
a mounting frame;
a motor having a shaft extending through the mounting frame;
a centrifugal compressor;
a drive system, comprising:
a pulley system comprising a driving pulley coupled to the shaft and a driven pulley, the driving pulley and the driven pulley interconnected by a pulley belt; and
a gear set coupled to the driven pulley via an input shaft and to the centrifugal compressor;

a plurality of cooling holes in the mounting frame, the plurality of cooling holes surrounding the driven pulley;
a belt tensioner for setting a preload in the pulley belt; and
an adjustment system for adjusting a position of the belt tensioner to adjust the preload in the pulley belt,
wherein the mounting frame comprises a recess for receiving a gearbox for the gear set,
wherein the recess is fluidly connected to the plurality of cooling holes, and
wherein the recess comprises a plurality of channels emanating from the plurality of cooling holes for increasing airflow around the gearbox.