[[Image:Fuel_efficient_motor_pump_icon.png|right]]
[[Image:Fuel_efficient_motor_pump.PNG|thumb|right|300px250px|Transporting the improved pump that weights 50% less than the conventional model]]
Small and efficient motor pumps refer to diesel or kerosine fueld motor pumps that have a typical size between 0.5 and 2.5 hp, and have been optimized to use as little fuel as possible.
A second issue, which is often overlooked, is the design of the filter screen at the input of the pump. In many cases, a filter screen is used that is too small, which leads to excessive resistance for the water to be pumped through it. This can easily lead to a doubling of fuel consumption for the same amount of water pumped.
==History and social context==
[[Image:Fuel_efficient_motor_pump.PNG|thumb|right|300px|Transporting the improved pump that weights 50% less than the conventional model]]
In India alone, there are more than 6 million diesel pumps. Research on the efficiency of these pumps, which was performed as part of the India-Terai development project, showed that big improvements in efficiency were possible. Technical adaptation resulted in a smaller engine that consumes 50% less fuel and is easier to transport. Improved motor pumps of 2.5 HP could yield as much water as traditional 5 HP pumps. Local industry in India has started to produce these new pumps.
In India, some 3,000 improved diesel pumps are used. In China, some 30,000 1.5 HP petrol pumps are used.
==Suitable conditions ==
==Field experiences==
In India alone, there are more than 6 million diesel pumps. Research on the efficiency of these pumps, which was performed as part of the India-Terai development project, showed that big improvements in efficiency were possible. Technical adaptation resulted in a smaller engine that consumes 50% less fuel and is easier to transport. Improved motor pumps of 2.5 HP could yield as much water as traditional 5 HP pumps. Local industry in India has started to produce these new pumps.
In India, some 3,000 improved diesel pumps are used. In China, some 30,000 1.5 HP petrol pumps are used.
This low cost pumpset is used in Madagascar (50 units), Burkina Faso (100 units), Nicaragua (70 units), Chad (50 units)