Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1981-11-24
1984-01-10
Look, Edward K.
Pumps
One fluid pumped by contact or entrainment with another
Jet
417191, F04F 500
Patent
active
044250843
ABSTRACT:
An ejector device having an adjustment characteristic which is stepless variable in dependence of the negative pressure generated by the ejector device. The ejector device comprises a portion (16) for connection with a source of positive pressure which delivers the work pressure to the ejector device (1) to give rise to the ejector action. A portion (2) includes inlet (18) for the member which is intended to use the negative pressure created by ejector device (1). The two portions (16, 2) of the ejector device (1) are stepless movable in relation to each other, and in the space therebetween is an adjustment plate (13) for controlling the suction action obtained by the ejector device (1). The outlet slit (17) of the ejector device (1) is located between the plate (13) and the portion intended for connection with the positive pressure source. The adjustment plate (13) is connected to a stem (10) which is movable in relation to the portion (2) for connection with the negative pressure member. Stem 10 is fixed in relation to the portion (16) to which the positive pressure source is connected.
REFERENCES:
patent: 1344967 (1920-06-01), Suczek
patent: 1421843 (1922-07-01), Schmidt
patent: 3204862 (1965-09-01), Hadeler
AB Piab
Look Edward K.
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