Invention Grant
- Patent Title: Single stage, axial symmetric blower and portable ventilator
-
Application No.: US17087715Application Date: 2020-11-03
-
Publication No.: US11998690B2Publication Date: 2024-06-04
- Inventor: Timothy Tsun-Fai Fu , Dion Charles Chewe Martin , Philippe Auguste Chalvignac , Quangang Yang , David Creusot
- Applicant: ResMed Motor Technologies Inc.
- Applicant Address: US CA Chatsworth
- Assignee: ResMed Motor Technologies Inc.
- Current Assignee: ResMed Motor Technologies Inc.
- Current Assignee Address: US CA Chatsworth
- Agency: Nixon & Vanderhye P.C.
- Main IPC: F04D25/08
- IPC: F04D25/08 ; A61M16/00 ; A61M16/06 ; A61M16/08 ; A61M16/10 ; A61M16/20 ; F04D25/06 ; F04D29/42 ; F04D29/44 ; A61M16/04

Abstract:
A blower includes a housing including a proximal opening and a distal opening that are co-axially aligned, a stator component provided to the housing, an impeller positioned between the proximal opening of the housing and the stator component, and a motor adapted to drive the impeller. The impeller includes a plurality of impeller blades. The stator component includes a plurality of air directing grooves along its exterior surface. The leading edge of the air directing grooves extend tangentially outwards from the outer tips of the impeller blades and are configured to collect the air exiting the impeller blades and direct it from a generally tangential direction to a generally radial direction by dividing the air from the impeller and directing the air along a curved path towards the distal opening so that airflow becomes substantially laminar.
Public/Granted literature
- US20210290873A1 SINGLE STAGE, AXIAL SYMMETRIC BLOWER AND PORTABLE VENTILATOR Public/Granted day:2021-09-23
Information query