F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/6
F04B 35/02 (2006.01) F01L 25/08 (2006.01) F04B 9/107 (2006.01) F04B 9/113 (2006.01) F04B 43/073 (2006.01) F04B 43/08 (2006.01) F04B 43/10 (2006.01) F04B 53/08 (2006.01)
Patent
CA 1137812
ABSTRACT OF THE DISCLOSURE This invention relates to an hydraulically operated displacement pump adapted to be connected directly to a pipe line. The pump is adapted among other things for pumping thick and abrasive materials. The pump includes a tubular pumping section provided with at least one trubular diaphragm and appropriate check valves to generate unidirectional flow of the material being pumped. Preferably, plural pairs of tubular diaphragms with appropriate check valves are employed. A power section of the displacement pump pumps a second fluid in a pulsating manner, for supply to the exterior of the tubular diaphragms via a conduit system. The conduit system consists of one closed-loop circuit for each tubular diaphragm. Each circuit is provided with check valves for causing a continuous and one-way circulation of the second fluid in the circuit. The disclosed hydraulically operated displacement pump requires little space, as the pumping section can be built in-line with a pipe line, while the compact, hydraulic power section can be placed anywhere at a desired distance from the pumping section. At the same time, the advantages which are present in conventional tubular diaphragm pumps remain.
310890
Eur-Control Kalle Ab
Fetherstonhaugh & Co.
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