Breakthrough in gas-liquid pumping

Article Abstract:

Multiphase Pumping Systems have developed a new multiphase pump which is able to deal with fluids which can rapidly change from 100% liquid to 99.5% gas and back. Multiphase Systems has not used centrifugal technology for its new pump, but has instead concentrated on overcoming the problems associated with twin-screw positive displacement pumps. The efficiency of the new pump is based on the profile of the screw faces, but Multiphase is not revealing the exact design of the screw or how it controls the flow of liquid.

Pumps, Pumping machinery, Multiphase Pumping Systems

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Making an issue out of joining

Article Abstract:

Many engineers believe product assembly is not as important as other features such as reliability, aesthetics and in service performance. There are many joining technologies although familier techniques are used because research and development funds are deployed in other project areas. The redesign of a Transcutaneous Electrical Nerve Stimulation (TENS) unit is described, with emphasis on designing an easily adjustable unit and reducing built time and costs.

Joints (Construction), Joints (Engineering)

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Grinding breakthrough strengthens ceramics

Article Abstract:

Cranfield Precision Engineering Ltd has developed a 'shear mode grinding' technique for brittle materials. Elimination of surface damage extends the life of ceramic components and lessens the risk of fatigue. The method depends on the grinding machine's loop stiffness. Electrolytic wheel dressing was developed for use with fine grit which produces the best finish.

Engineering services, Engineering firms, Grinding machines, Grinding equipment, Cranfield Precision Engineering Ltd

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