Steam/air ejector for generating a vacuum

Details Steam/air ejector for generating a vacuum Steam/air ejector for generating a vacuum

1988-10-21

1990-02-06

Vrablik, John J.

Pumps

One fluid pumped by contact or entrainment with another

Jet

417238, F04F 500

Patent

active

048985171

ABSTRACT:
An ejector (10) is provided, which has an easily replaceable nozzle unit (22). The ejector includes a steam chest (16), a suction chamber (18), a diffuser (20) and a nozzle unit, wherein the steam chest has an outside end wall (24) having an opening with a removable cap (32) for removing the nozzle unit and for replacing the nozzle unit, or a duplicate thereof, through the opening. The steam chest has an axis and has a coaxial steam chest cavity (29) with an inlet opening (34) for steam. The suction chamber connects coaxially to the steam chest and has a coaxial suction chamber cavity with an inlet opening. The diffuser is coaxial with the steam chest and the suction chamber and has an elongate coaxial passage for exhausting the suction chamber cavity. The nozzle unit interconnects the steam chest cavity and the suction chamber cavity is coaxial therewith.

REFERENCES:
patent: 1509090 (1924-09-01), Allyn
patent: 2310265 (1943-02-01), Sweeny
patent: 2631774 (1953-03-01), Plummer, Jr.

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