Multistage ejector pump

Details Multistage ejector pump Multistage ejector pump

1991-05-24

1993-07-20

Smith, Leonard E.

Pumps

One fluid pumped by contact or entrainment with another

Jet

417191, F04F 500

Patent

active

052288390

ABSTRACT:
An ejector pump having a plurality of longitudinally aligned chambers, each chamber including a pair of opposed end walls, at least two of the end walls having a nozzle and a one-way valve, with a connection to compressed gas to the most upstream of the nozzles, the pump having a single cylindrical pump body defining a cylinder or axially aligned cylinders with multiple end walls inserted therein, each wall having substantially the shape of a cross section through the cylinder or the respective cylinders. The end walls being secured to the cylinder at a point along the length of the cylinder or each end wall attached to the corresponding aligned cylinder.

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"Coppus Jectair.RTM. Safe, Lightweight, High Volume Venturi Air Mover," an advertising brochure published by Coppus Engineering Corporation, Worcester, Mass., Catalog 100-Dec. 1979-15m.

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