F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/45, 103/56,
F04B 1/00 (2006.01) F04B 7/00 (2006.01) F04B 11/00 (2006.01) F04B 15/02 (2006.01)
Patent
CA 1233070
ABSTRACT Disclosed is a wear-resistant high pressure pump for the handling of, particularly, abrasive slurries and suspensions, and which eliminates the problem of valve shear of the pressurized discharge product. An oscillating- deflector slurry pump comprises a pair of cylinder arrangements aligned one on either side of a centrally-disposed oscillating-deflector element. Each cylinder arrangement is constituted by a housing in which are defined co-axial, registering hydraulic and slurry cylinder bores, and a piston rod having, at one end thereof, a hydraulic piston head slidably movable within the hydraulic cylinder bore and having, at the other end thereof, a slurry piston head slid- ably movable within the slurry cylinder bore. The oscillating-deflector element has within it passageways enabling communication, alternately, between a slurry inlet conduit and a first one of the two slurry cylinders, and between the slurry inlet conduit and a second one of the two slurry cylinders. The second slurry cylinder is in communication with a slurry discharge conduit when the slurry inlet conduit is in communication with the first slurry cylinder, and the first slurry cylinder is in communication with the slurry discharge conduit when the slurry inlet conduit is in communication with the second slurry cy- linder. The oscillating-deflector element has an axis of rotation normal to the longitudinal, reciprocal axes of the hydraulic and slurry cylinder bores, and is adapted to oscillate with an axial shaft, one end of which operates so as to oscillate the element and the other end of which carries valve means which controls selection of the direction of oscillation of the element.
454815
Boyle Bede A.
Fetherstonhaugh & Co.
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