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US 2020/0018324 A1Published application
Quiet blower apparatus and system and method for reducing blower noise
AssigneeResMed Pty Ltd
InventorsRobert Henry FRATER, Hamish Alexander URQUHART, Dmitri Anatolievich DOUDKINE, Barton John KENYON
Life of this patent
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Abstract
A blower assembly including a motor, an impeller and a volute that is configured such that an inlet chamber of the volute and an outlet chamber of the volute are divided from one another by an airtight membrane and the membrane is configured to allow the transmission of pressure waves between the inlet and outlet chambers.
Claims26
A system for reducing noise generated by a blower, the system comprising:
- a blower, comprising a motor, an impeller, an inlet port, and an outlet port;
- an enclosure in which the blower is located, the enclosure being divided into an inlet section including an enclosure inlet port and an outlet section including an enclosure outlet port, the outlet section having a higher pressure than the inlet section in use;
- and
- a separator configured to divide the enclosure into the inlet section and the outlet section and to provide acoustic communication between the inlet section and the outlet section.
1 more element
A system for reducing noise generated by a blower, the system comprising:
- a blower, comprising a motor, one or more impellers, an inlet port, and an outlet port;
- an enclosure in which the blower is located, the enclosure being divided into (a) an inlet section including an enclosure inlet port, (b) an outlet section including an enclosure outlet port and having a higher pressure than the inlet section when in use, and (c) one or more intermediate sections located between the inlet section and the outlet section;
- and
- one or more separators, each configured to divide the enclosure and to provide acoustic communication between respective two sections out of the inlet section, the outlet section and at least one of the one or more intermediate sections.
1 more element
Dependencies are inferred from the claim text.