Blower

US12090271B2 · kind B2 · utility

Assignee

• ResMed Motor Technologies Inc. · US

Inventors

• Barton John Kenyon · Sydney, AU
• Jeegarkumar KAPADIA · Sydney, AU
• Melanie Lucia Cariola · Sydney, AU
• Michael Bruce Moir · Newbury Park, US
• Aleksandr S. Nagorny · Calabasas, US
• Christopher Scott EDWARDS · Chatsworth Lake Manor, US
• James McKensey Bencke · Sydney, AU
• Paul Andrew Dickens · Gemstone Road, AU

Key dates

• Filing date: Dec 1, 2021
• Grant date: Sep 17, 2024
• Expiry date: Mar 24, 2043

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2250/52
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A blower includes a housing including an inlet and an outlet, a motor to drive a rotatable shaft, first and second impellers provided to the shaft, the first and second impellers each including a plurality of impeller blades, a first stationary component provided to the housing and including stator vanes downstream of the first impeller, and a second stationary component provided to the housing and including stator vanes downstream of the second impeller. A first set of stator vanes of the first stationary component is provided around the motor and are configured and arranged to direct airflow along the motor, to de-swirl the airflow and to decelerate air to increase pressure. A blower including a third impeller and third stationary component positioned above the first impeller is also described.