Document Type and Number:
Japanese Patent JPS6250679
Kind Code:
B2
Abstract:
An air pump useful in pumping gases containing abrasive particles is disclosed. A housing is constructed with a primary flow channel centered around the pump axis and a secondary flow channel annularly surrounding the primary channel just inside the outer housing wall. Within the midsection of the pump a powered impeller rotating within an axially symmetric shroud accelerates air drawn from the primary flow channel causing it to be discharged through an annular shaped ejector nozzle into a suction chamber. Presence of the high velocity airstream in the suction chamber draws the contents of the secondary flow channel into the suction chamber. The entrained contents of the primary and secondary flow channels are carried into the diffuser where the velocity energy of the mixture is converted into pressure. The pressurized mixture is then discharged through the exhaust section.
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Inventors:
CHAARUZU KUINTSURE JUNIA
JOZEFU PII MAAFUI
JOZEFU PII MAAFUI
Application Number:
JP12693879A
Publication Date:
October 26, 1987
Filing Date:
October 03, 1979
Export Citation:
Assignee:
AVCO CORP
International Classes:
F04D7/00; F02C7/052; F04D23/00; F04F5/20; F04F5/54
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