Patent · US Active

Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor

US8272837B2 · kind B2 · utility

19Cited by

10References

38Claims

0Family size

Assignee

ResMed Corp. · AU

Inventors

Barton John Kenyon · Sydney, AU
Nicholas Jerome Reed · Sydney, AU
Andrew Wilson · Sydney, AU
Ian Malcolm Smith · Hornsby, AU

Key dates

Filing date	Oct 27, 2006
Grant date	Sep 25, 2012
Priority date	—
Expiry date	Mar 26, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/668
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A single ended or double-ended blower includes a blower motor assembly supporting opposed first and second shaft ends. The first and second shaft ends have respective first and second impellers attached thereto and enclosed within first and second volutes, respectively. The first volute is connected to an inlet and the second volute is connected to an outlet. The blower motor assembly is supported in a chassis enclosure. A radially outer inter-stage path is between the first and second volute. The second volute is at least partially substantially concentrically nested with the radially outer inter-stage gas path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.