MULTIPLE STAGE BLOWER AND ENCLOSURE THEREFOR

CPAP apparatus comprising a blower (700). The blower comprises a motor (702) provided with opposed first and second shafts (704, 706); a first stage impeller (708) operatively connected to the first shaft and a second stage impeller (710) operatively connected to the second shaft; an inner casing (7...

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Bibliographic Details
Main Authors VIRR, Alexander, LEA, Stephen Anthony
Format Patent
LanguageEnglish
French
German
Published 07.10.2020
Subjects
BLASTING
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HEATING
HUMAN NECESSITIES
HYGIENE
LIGHTING
MECHANICAL ENGINEERING
MEDICAL OR VETERINARY SCIENCE
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:CPAP apparatus comprising a blower (700). The blower comprises a motor (702) provided with opposed first and second shafts (704, 706); a first stage impeller (708) operatively connected to the first shaft and a second stage impeller (710) operatively connected to the second shaft; an inner casing (712) to support the motor and an outer casing (718) to support the inner casing; as well as a substantially annular channel between the inner and outer casings, wherein, in operation, gas is directed from the first stage impeller towards the second stage impeller via the substantially annular channel.
Bibliography:Application Number: EP20170196708