Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1988-06-20
1989-11-14
Freeh, William L.
Pumps
One fluid pumped by contact or entrainment with another
Jet
417191, 417182, F04F 500
Patent
active
048803588
ABSTRACT:
Air-operated vacuum pump assemblies are disclosed which provide a maximum vacuum force and a large vacuum flow per volume of air consumption. The present venturi pump assemblies comprise one or more solid ejector housings each having a single longitudinal bore comprising two or more linear exit passage sections, each said passage section being larger than and spaced from the passage section exhausting thereinto. Vacuum chambers between the exit passage sections each communicate with a surface of the pump housing through transverse bores, to a common vacuum manifold through which vacuum flow can be drawn through each of the vacuum chambers of the linear exit passage sections for exhaust through the final downstream exit passage section. The linear bore includes a first venturi nozzle, and the housing includes a transverse bore including a smaller second venturi nozzle having a vacuum chamber which also communicates with the manifold and having a venturi passage which discharges into the first vacuum chamber of the first venturi nozzle.
REFERENCES:
patent: 3959864 (1976-06-01), Tell
patent: 4158528 (1979-06-01), Lasto et al.
patent: 4395202 (1983-07-01), Tell
Air-Vac Engineering Company, Inc.
Blackmon Robert N.
Freeh William L.
LandOfFree
Ultra-high vacuum force, low air consumption pumps does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-high vacuum force, low air consumption pumps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-high vacuum force, low air consumption pumps will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1850054