Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1999-04-19
2000-12-05
Freay, Charles G.
Pumps
One fluid pumped by contact or entrainment with another
Jet
417186, 417182, F04B 548
Patent
active
06155796&
ABSTRACT:
The present invention relates to an ejector for generating negative pressure having a pressure connection discharging into a propellant nozzle, and having a suction connection which discharges via a suction conduit into a receiver nozzle. The propellant nozzle and the receiver nozzle are provided in a suction valve with a first blocking piston for the propellant nozzle. A work conduit communicating with the pressure connection and a control conduit communicating with the pressure connection are provided and a blow conduit discharging via a blow valve into the suction connection communicates with a second blocking piston, and the piston position of the second blocking piston of the blow valve being triggerable via the control conduit.
REFERENCES:
patent: 4432701 (1984-02-01), Ise
patent: 4549854 (1985-10-01), Yamamoto
patent: 4861232 (1989-08-01), Ise et al.
Dittmann Hans
Schmalz Kurt
Schmalz Wolfgang
Freay Charles G.
J. Schmalz GmbH
Solak Timothy P.
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