Device for injecting fertilizer or other chemicals into a pipeli

Details Device for injecting fertilizer or other chemicals into a pipeli Device for injecting fertilizer or other chemicals into a pipeli

1988-11-10

1989-08-22

Garrett, Robert E.

Pumps

Motor driven

Common rotary pumping and fluid motor working member

415 84, 417406, 137 99, 239310, F04D 1304

Patent

active

048591572

ABSTRACT:
A device for injection of liquid fertilizer into an irrigation pipe includes an axisymmetrical housing (I) adapted for insertion into the pipe line (III). The device comprises an axial turbine impeller (II) rotatably positioned in the housing, the impeller including several vanes (20) surrounded by a shroud (22) and a flat, annular rim (6) outstanding from the shroud and closely surrounded by the housing walls. The rim contains, on one or on both of its flat sides, a side-channel pump of known design which includes a plurality of radial vanes (30) inserted into an annular portion of the flat side and a channel (33) recessed in the adjoining housing wall portion cooperating with the annular vane portion and extending from an inlet end (34) to an outlet end (35), the two ends being separated by a non-recessed wall portion (36). Liquid fertilizer is caused to enter the inlet end through an inlet port in the housing, is pressurized by the movement of the vanes along the channel and leaves the outlet end through an outlet port in the housing, from where it is conveyed to the irrigation pipe at a point (19) downstream of the pump impeller.

REFERENCES:
patent: 2701682 (1955-02-01), Dallenbach et al.
patent: 3101090 (1963-08-01), Carden
patent: 3425435 (1969-02-01), Garabello
patent: 3549048 (1970-12-01), Goodman
patent: 3570508 (1971-03-01), Boggs et al.
patent: 4008983 (1977-02-01), Flatt et al.
patent: 4651765 (1987-03-01), Beth

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