公开(公告)号：US20240263642A1

公开(公告)日：2024-08-08

申请号：US18431557

申请日：2024-02-02

Applicant: MTD PRODUCTS INC

Inventor： Jay Maggard ,  Jeffrey R. Kucera ,  Garrett Rosinski ,  Dominic Kedelty ,  Jacob Petersen

IPC: F04D29/42 ,  F04D25/08

CPC classification number: F04D29/4226 ,  F04D25/08

Abstract: An air blowing apparatus having an auxiliary housing and auxiliary air flow output that can be selectively engaged and disengaged is described herein. In an embodiment of the disclosure, the auxiliary housing can comprise an auxiliary fan to generate a second high speed air flow to supplement a high volume air flow of a primary housing. When baffled, the auxiliary fan is isolated from air intake and can be driven with little power consumption. An air blowing apparatus can be a backpack-style apparatus or hand-held air blowing apparatus. As examples, one airflow can have a relatively high volumetric flowrate relative to another airflow, or can have a high air speed relative to another airflow, or can have a high energy relative to another airflow, and so forth.