公开(公告)号：US20220316500A1

公开(公告)日：2022-10-06

申请号：US17848062

申请日：2022-06-23

Applicant: TECHTRONIC CORDLESS GP

Inventor： Ronald J. Hoffman ,  Scott W. Reed ,  Ashley B. Amick, JR.

IPC: F04D29/66 ,  F04D19/00

Abstract: Blowers having noise reduction features are provided. A blower may include a main body defining an airflow path therethrough, the main body extending between and defining an inlet end and an outlet end. The blower may further include an inlet muffler provided at the inlet end. The inlet muffler includes a plurality of inlet ports, each of the plurality of inlet ports including a peripheral surface defining a port aperture therethrough. At least one of the plurality of inlet ports further includes a damper material provided on the peripheral surface of the at least one inlet port and further defining the port aperture therethrough.

公开(公告)号：US20210033115A1

公开(公告)日：2021-02-04

申请号：US16938211

申请日：2020-07-24

Applicant: TECHTRONIC CORDLESS GP

Inventor： Ronald J. Hoffman ,  Scott W. Reed ,  Ashley B. Amick, JR.

IPC: F04D29/66 ,  F04D19/00

Abstract: Blowers having noise reduction features are provided. A blower may include a main body defining an airflow path therethrough, the main body extending between and defining an inlet end and an outlet end. The blower may further include an inlet muffler provided at the inlet end. The inlet muffler includes a plurality of inlet ports, each of the plurality of inlet ports including a peripheral surface defining a port aperture therethrough. At least one of the plurality of inlet ports further includes a damper material provided on the peripheral surface of the at least one inlet port and further defining the port aperture therethrough.