Pursuit Dynamics plc is a UK based research and development company, which was founded in 2000 to develop and commercialise a revolutionary pumping and propulsion technology. Pursuit Dynamics (symbol: PDX) was listed on the Alternative Investment Market of the London Stock Exchange in May 2001.



PDX 25 Sonic.

The PDX Technology is a steam-based system that has applications in both pumping and marine propulsion. It is cheap to manufacture, extremely robust, contains no moving parts and is virtually impossible to block. Pursuit Dynamics owns 100% of the Intellectual Property Rights that surround the PDX Technology.



Pursuit Dynamics is now working towards the commercialisation of the technology it has developed.





Corporate website : http://www.pursuitdynamics.com/


Pursuit are rumoured to be close to closing their first deals, which may be in the food processing industry.

Great to have a mature , constructive approach on this thread to PDX. the other side FBB is crammed full of children and not very bright ones at that.There has been some speculation that the Confectionery Co. is Cadbury's althougth this has not been confirmed. In to-days Times Cadbury moving some of its production to Poland and Rationalising other areas and resources. It is of course possible if it were Big C that PDX would not be able to make any announcements until these type of issues were made public to its own employees by Big C . The engineering Article sounds interesting Ultimate Cynic-- I presume that you are an engineer and therefore in a position to judge the Technology. I am not an engineer, but a practical person -- and I thought it had lots of potential .

RNS Number:9055U
Pursuit Dynamics PLC
02 February 2004


PURSUIT DYNAMICS PLC ("the Company")

Holding in Company

The Company was advised on 27 January 2004 that Carnegie Corporation Ltd is now
interested in 1,000,000 ordinary shares in the Company, representing 2.45% of
the issued share capital.

mikeran- Here is the article.

(Sorry I Have been unable to get the pictures in here- Don't know how to do it)

Fluid handling systems are, by definition, a critical technology for any process industry, and often have to meet demanding requirements. As well as providing the core pumping action, key functions can also include heating, mixing, maceration and the entrainment of additional constituents to a process.
To achieve all these process needs, traditional systems can be complex to design and build, as each individual task has to be performed by a different specialised piece of equipment, from pumps and heaters to mechanical mixers.
For the same reason, some systems can be extremely prone to operational and maintenance difficulties: from blockages to worn bearings and seals. However, these problems could be solved with an innovative new technology that offers a different approach to meeting fluid handling demands in virtually any industry.
Derived from a marine propulsion application, the PDX Fluids Handling System, developed by UK company Pursuit Dynamics, is the result of a 4 million project, incorporating three years of research, computer modelling and simulation, together with extensive validation using physical prototypes.
PDX can perform all the multiple processing tasks (pumping, solids handling, heating, mixing / agitation, maceration, secondary entrainment), or any combination of them, within one compact unit. Moreover, the system, which is steam-based, has no moving parts, and so compared with conventional pumps and macerators it requires minimal maintenance and is virtually impossible to block. It is also silent, self-cleaning, and intrinsically safe and can be more energy-efficient than alternative technologies in many applications.

How it works:

The PDX system, which is now the subject of 15 patent applications, is driven by readily available steam (of which neither high pressure nor high volume is necessary). This steam is injected through the walls of the tubular unit and into a fluid flow via a series of novel annular nozzles, which are arranged around the circumference of the bore. The result is a transfer of energy to the process fluid, which can be harnessed to control flow rates, mix, secondary entrain and allow for heat transfer.
Fluid flow is created from momentum transfer from the stream jet, plus the pressure drop from the steam condensation "pulling" flow through the unit. Fluid velocities reach 8 to 10 m/s prior to exiting the unit.
A unique supersonic shock wave can also be generated across the full bore of the processed fluid providing significant additional capabilities. Process fluids are drawn into a low-pressure shock zone at a typical linear velocity of 8-10 m/s.The shock zone is a mix of steam and water droplets moving at up to 800 m/s (supersonic velocities) in a partial vacuum. The fluid being transferred condenses the steam vapour, which reforms into a liquid, creating the controllable shock wave, and increasing the energy transfer. This provides an excellent mixing capability, and can be controlled from gentle agitation to vigorous mixing and, if desired, provide a macerating effect on any semi-solids present. In fact, system trials have found that a high energy maceration zone can disintegrate high fluid content soft solids, reduce short fibre cardboard or paper products to single fibres in one pass and break down or emulsify fat based materials - all without any need for mechanical macerators, blades or moving parts of any kind.
Air or other gases, fluids or solids (hydrocarbons, dyes, powders, chemical dosing, bio gas) can also be naturally entrained into the low-pressure zone to boost the performance, enhance the natural mixing effect, and/or aerate the process fluid. The system can use up to 10 extra entrainment ports when multi-mixing or homogenising is needed.
During the core process of pumping the fluid, the condensation energy of the steam will normally result in a small temperature increase in the fluid flow. However, the process can be controlled in such a way as to intentionally add heat ;from 4C to 100C) to material passed through the system, with the supersonic mixing zone providing instantaneous heat distribution.
The system offers a very wide range of processing power. A 63mm diameter unit can flow up to 100,000 litres/hour, a 47 mm diameter bore system will typically produce flow rates of up to 65,000 litres/hour, and 25 mm diameter will comfortably operate between 2,000 and 16,000 litres/hour.
But in fact there is no significant limit on the size of the units that can be designed and built, or the number of units run in parallel, and therefore the maximum flow rate is practically unlimited. In addition, the unit does not require pressurisation; this is because the low-pressure zone within the unit provides the suction necessary for efficient entrainment. The system is also compact; a 25mm system is only 350mm in length and the 47mm and 63mm systems are 460mm long, allowing further space savings over conventional equipment.

Capability:

For any continuous process where the direct and indirect costs of downtime can be substantial, reliability of a system becomes a priority. With the absence of moving parts, the PDX system is inherently more reliable than conventional pumps or other process equipment. Also, its clear bore allows hard objects to pass straight through without clogging or blocking, whether they are an inherent element of the process or are accidentally present in the form of debris.
Units have already demonstrated the ability to pass a range of debris and solids - from cloth and rope to sand/gravel and vegetable matter.
The durability of the system means that ragging and impeller damage are eliminated. The clear bore also allows unobstructed passage for cleaning or inspection pigs (pipeline inspection gauges), with no dismantling required.
If appropriate materials are used in the construction of a system unit, or if a suitable corrosion-resistant coating or liner is employed, the device can be made to resist abrasion and attack from hostile solutions. The steam injection principle also ensures the nozzles are self-cleaning. This functionality means that the PDX System is uniquely suited to processes that require CIP and SIP.
The system is equally capable of processing some of the most demanding substances, including those with high solids content and extreme viscosities. Tests have been successfully conducted on materials as diverse as molasses, gravel, and drill cuttings. And, while individual units can also achieve a considerable suction head, depending on the steam pressure applied, multiple units can be used in series to generate additional suction if desired. The resulting increase in suction capability allows more effective processing of highly viscous liquids or enables lower viscosity liquids to be pumped to greater heights.
Perhaps one of the biggest attractions of the system is its versatility. Not only can it be used to perform many different roles, but single units can also carry out multiple tasks concurrently. It is capable of mixing multiple fluids, solids and gases simultaneously. It can also effectively create an emulsion with suitable materials, and homogenise materials of different densities and viscosities.
PDX is modular and configured for pipeline installation, clearly offers advantages over traditional pumps.

Applications:

This new technology can benefit engineers in many industries. Food and wastewater are lead sectors at present but other key application areas include nuclear, steel and oil.
Applications in industrial and municipal water and wastewater capitalise on the product's capability to pump reliably wastewater, effluent slurries and process streams, including flows that have high solids content.
For example, sewage treatment units can be used to fulfil a variety of functions, from point of entry into the sewage treatment works through to final output. Unlike conventional equipment used to pump sewage, PDX will not clog and its unrestricted free passage and lack of moving parts ensures that any rags, wood, grit or other incoming material will not damage me pump.
The maceration and entrainment properties of PDX can also be used to thoroughly mix materials or add components during manufacturing. For the transportation of solids comprising over 30% consistency of paper for example, it offers significant reductions in water usage and disposal requirements. Its ability to introduce heat, at precisely controlled levels within a process, coupled with the system's maceration and homogenisation performance, enables it to be used for single pass disinfection and pasteurisation of sewage sludge.
Efficient mixing of suspended solids, the break up of soft body organisms and the introduction of heat by passing the untreated sludge through the unit is sufficient to kill E. coli and other micro organisms in-line. This removes several steps from conventional sludge treatment.
The capability to provide gentle agitation, gas entrainment and heating can be used to aid anaerobic digestion.
Difficult to manage materials such as fats, greases, suspended solids can also be emulsified and homogenised with ease. The entraining and mixing properties of the system render it suitable for in-line, continuous water and sludge treatment. Additionally, chemicals can be precisely dosed into a process flow, for example to disinfect potable water or introduce additives to process water.
The same technology can also be applied to sewage treatment, for introducing flocculants prior to de-watering. Additional mixing and bio treatment is possible using the same unit.
In the food industry, ingredients and raw materials can be mixed, heated, transported and blended in a single operation. The unrestricted passage and efficient pumping features of the system facilitate the processing of a wide range of food ingredients, either in a batch manufacturing plant or as an integral part of a continuous process. Here, especially, the supersonic shockwave technology can improve process efficiency by providing heating and mixing during manufacture. The construction of the unit enables the system to be used in hostile or sterile environments and cleaning in place is simple and straightforward. Flow rates and turbulence can be varied to cope with shear sensitive products and formulations. PDX can complement or even replace existing heat transfer and steam jacket equipment.
As PDX has no moving parts and can be fabricated entirely from stainless steel, CIP operations can be undertaken with minimum downtime. Additionally the entrainment capability lends itself to batch or continuous mixing of a number of different materials simultaneously without the need for any further equipment other than me feed hoppers. It also handles the hydration of gums and thickening agents and other hard to wet ingredients that are notoriously difficult to mix homogeneously. Pasteurisation and emulsification can also be carried out as part of a continuous operation.
Applications are expected in the brewing, diary, soft drinks and confectionery sectors of the food industry, especially where in batch processing situations where the efficient use of plant relies on quick changeover times between batches.
In the nuclear industry PDX will retrieve storage pond waste with minimal disruption or agitation, and is suitable for transporting a variety of byproducts generated as a result of nuclear power generation or power station decommissioning, including oil contaminated waste and intermediate level wastes. This fulfils this industry's need for a system that requires minimal human intervention for maintenance and installation, and comes with a wide dynamic range in terms of flow rates, material size and density.
The pump can be used to transport, process and recycle residues and wastes produced in steel manufacture for a range of applications from pumping to de-oiling. And in the oil industry, it provides a robust, reliable and versatile method of oil recovery and waste handling, pumping, heating and separating oil rich media as well as for transporting viscous fluids and thick agglomerates including bituminous deposits, heavy oil and oily waste sludge.
A typical example of the versatility of the system can be seen in the recovery and processing of oil sands. Using the steam technology, coupled with the unit's ability to heat and pump in a single unit, the multiple stages of mobilization, transportation and separation can be combined in a single operation.
Royston-based Pursuit Dynamics is now looking for partners to licence or adopt the technology, which the company can demonstrate at its headquarters or anywhere in the UK with a mobile in-field demonstration unit.
Whatever the role, the company believes that the system offers substantial benefits for those who take up this novel technology.
For further information contact John Heathcote or Steve Mahon at Contact Pursuit Dynamics pic, Unit 1 Anglian Business Park, Orchard Road, Royston, Herts SG8 STW.Tel:
+44 (0) 1763 250 592. Fax: +44 (0) 1763 250 596. Email:
sales@pursuitdynamics.com www.pursuitdynamics.com

ENGINEERING TECHNOLOGY February 2004

Cheers Ultimate Cynic - an excellent article and can see the PDX pump technology somewhere in commercial production faily soon.

The "manufacturer" has now invested 90,000 to retain exclusivity of PDX pumping technology application for confectionery production and waste processes.

Revised countdown to end of trial extention and expected contract :- 27Days

Revised countdown to end of trial extention and expected contract news :- 22Days

i have been monitoring the price movement ..after going down slightly early on in the week to around 104p..it is now climbing again ..i brought some yesterday ..the bid is now 112p .

Anyone know why sudden price surge of 8% just before 3.0pm to-day?

People are positioning themselves for a possible contract announcement next week or the week after. I would expect the share price to continue to escalate on Monday. Hope you've bought in already!

potential breakout next week. imho

Momentum, Why?

publess

There is an expectation of an announcement on or before 5th March.

From a technical perspective, if this share breaks 130 then theres nothing to stop it climbing to 2 or more.

Gausie,

Agreed, any confirmation of a significant contract could send PDX soaring, especially if they are able to include in said contract royalty payments based on the savings to the purchaser.

The first deal will more than likely set the benchmark for future deals, and therefore may be a little delayed in coming, but the wait may well be worth it!

A recent addition to the PDX website, www.pursuitdynamics.com

I,m going to try and post actual pictures of the pump from my last article, but
what format is acceptable? (JIF, TIFF etc.) and what size in pixels? Anybody know?

JPEG 800 x 600

A very common size

ultimate cynic,

here's a picture of the new pump;

News of the trials with a confectionery manufacturer should be out sometime after 4th Mar, later this week. If the news is possitive with a licence and royalty agreement signed then we should see the patience of share holders very well rewarded.

Pushed to a new 3-month high today. Hopefully there will be news to take it higher later this week.

a director has said a deal has been signed, but no clue of the terms of the deal