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During the last few years, Phillip Denne has been working on the extension of linear and rotary actuators into markets that require very large thrusts, gearless high torques and significant continuous power ratings. This development of the new machines was initially in response to military demands, but the first high-volume application has been in the oil business.

Crostek Management Corp, a Canadian Company in Red Deer, Alberta, specialises in high technology products for the oil and gas business. It has set out to replace the conventional “Nodding Donkey” pump jack by a free-piston linear electric actuator that supports a load of ten tonnes in a non-stop pumping cycle, operating in all weathers. It is fully-enclosed and silent, has only one moving part and lightly-loaded bearings and is much more efficient than the conventional mechanism. It is capable of sensing the pumping conditions at the bottom of the well (which may be 6000 ft deep) on a continuous basis and of reacting autonomously so as to optimise the pumping rate whilst protecting itself and the pump to which it is connected.

Denne’s planar wireless motor technology is the only means by which such a lightweight, low-cost, powerful machine could have been constructed.

The patents protecting the disruptive planar wireless motors technology cover electrical machines of all types, linear and rotary motors or generators, large or small. There are many large potential markets for such products.

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