Pumps – Combined
Reexamination Certificate
2011-08-02
2011-08-02
Freay, Charles G (Department: 3746)
Pumps
Combined
C417S271000, C091S502000, C092S071000
Reexamination Certificate
active
07988428
ABSTRACT:
A pressure pump in a primary liquid flow is combined with a pressure exchanger for energy recovery from a secondary liquid flow. A motor-driven rotor portion, including two (primary and secondary) rotatable drum-type cylinder assemblies, is disposed between end blocks configured with input/output ports and cavities forming sliding synchronous reversing valves. Interconnected piston assemblies, including at least one primary piston and one secondary piston, are reciprocated axially by a central angled swash-plate in a progressive sequential manner by rotation of the rotor portion. The combination machine can be optimized for beneficial deployment in a reverse osmosis seawater desalination system to provide unusual simplicity, high efficiency energy recovery from the brine discharge flow and low overall operating cost.
REFERENCES:
patent: 3293881 (1966-12-01), Walker
patent: 3431747 (1969-03-01), Hashemi
patent: 4637783 (1987-01-01), Andeen
patent: 4887942 (1989-12-01), Hauge
patent: 5178521 (1993-01-01), Ikeda et al.
patent: 5306428 (1994-04-01), Tonner
patent: 5362208 (1994-11-01), Inagaki et al.
patent: 5385451 (1995-01-01), Fujii et al.
patent: 5397218 (1995-03-01), Fujii et al.
patent: 5462414 (1995-10-01), Permar
patent: 5778757 (1998-07-01), Kristensen et al.
patent: 6000316 (1999-12-01), Moller et al.
patent: 6017200 (2000-01-01), Childs et al.
patent: 6659731 (2003-12-01), Hauge
patent: 6773226 (2004-08-01), Al-Hawaj
patent: 6804962 (2004-10-01), Prueitt
patent: 7297268 (2007-11-01), Herrington et al.
patent: 2005/0166978 (2005-08-01), Brueckman
patent: 2006/0120882 (2006-06-01), Jordan et al.
Connolly Bove & Lodge & Hutz LLP
Freay Charles G
Hamo Patrick
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