Title of Invention	A HYPER - SYNCHRONOUS SPEED WATER PUMPING SYSTEM
Abstract	A hyper-synchronous speed water pumping system comprising a centrifiugal pump,an electirc motor for driving said pump,characterised by step up gear means,the driven end of said means being coupled to the drived end of the motor and the driver end of said means being coupled to the driven end of said pump.

Full Text

This invention relates to a hyper-synchronous speed (HSS) water pumping system. Centrifugal pumping systems are used in wells and other such water sources for pumping water from one point to another. A major drawback with the known water pumping system is that in order to obtain a higher head and discharge, either the size of the pump or the number of stages of the pump has to be increased, for example, from a single stage to two stages an so on. This results in increase in cost of the equipment, maintenance, and wear and tear among other considerations. In the pumping system proposed herein, however, the cost of the equipment is effectively reduced, since the size and/or number of stages that would otherwise have been involved is also reduced with the attendant benefits which can be inferred from what has already been stated above. Consequently, the pump can be made to be of a physically smaller size for a given head and discharge. The following description will disclose various other features of this invention. The hyper-synchronous speed water pumping system, according to this invention, comprises a centrifugal pump, an electric motor for driving said pump, characterised by step up gear means, the driven end of said means being coupled to the driver end of the motor and the driver end of said means being coupled to the driven end of said pump. This invention will now be described with reference to the accompanying drawings which illustrate in Fig. 1 the known pumping system j^and in Fig.2, by way of example, and not by way of limitation, one of possible embodiments of the pumping systemlproposed herein. The known pumping system will be seen to comprise a centrifugal pump PI. An induction motor Ml drives the pump PI to pump water from a deep well or other water source to a predetermined place. The drawbacks relating to the known system just described have already been outlined above. If the head and discharge of the pump have to be increased, it will be necessary to increase the size and/or the number of stages of the pump which means that it will be necessary to increase the size or number of impellers and so on. An embodiment of the system proposed herein is illustrated in Fig.2. In this arrangement the pumping system proposed herein will be seen to comprise a pump P2. An induction motor M2 drives the pump P2 to pump water from a deep well or other water source to a predetermined place. Step up gear means, such as, a step up gear box G, are provided, the driven end 1 of the gearbox G being coupled to the driver end 2 of the motor M2 and the driver end 3 of the gear box G being coupled to the driven end 4 of the pump P2. In order to achieve a desired head and discharge for the pump P2, the gear box G will be set at a calculated step up ratio, which will step up the speed of the pump P2 correspondingly, thereby increasing the head and the discharge proportionately for agiven speed of the motor. In other words, the pump P2 can be made to run with a smaller size pump and/or on fewer impellers with a greater head and discharge for a given motor speed. As already stated this invention is not confined to its embodiment herein described and illustrated, but various other embodiments thereof are possible without departing from the scope and ambit of this invention. I Claim: 1. A hyper-synchronous speed water pumping system comprising a centrifugal pump, an electric motor for driving said pump, characterised by step up gear means, the driven end of said means being coupled to the driver end of the motor and the driver end of said means being coupled to the driven end of said pump. 2.A hyper-synchronous speed water pumping system substantially as herein described and illustrated in the

Documents:

904-che-2004-abstract.pdf

904-che-2004-claims duplicate.pdf

904-che-2004-claims original.pdf

904-che-2004-correspondnece-others.pdf

904-che-2004-correspondnece-po.pdf

904-che-2004-description(complete) duplicate.pdf

904-che-2004-description(complete) original.pdf

904-che-2004-drawings.pdf

904-che-2004-form 1.pdf

904-che-2004-form 19.pdf

904-che-2004-form 26.pdf