The necessity of installing expensive pumps drove many farmers out of business.

One of Rennie's recommendations had been to replace the windmills which drove the drainage pumps with a steam pumping station at Pode Hole, but this was not implemented.

Boulton Paul's turrets were electro-hydraulic in operation ; electric motors located in the turret drove hydraulic pumps that powered hydraulic motors and rams.

A gas-generator was used to drive a turbine which in turn drove separate fuel and oxygen pumps, each feeding the thrust chamber assembly.

He installed a steam engine designed by a member of his staff, James Sadler, in 1798 which, as well as working the chain pumps, drove woodworking machinery and a pump to take water from a well round the dockyard for fire-fighting purposes.

A diameter cast iron spur geared pitwheel drove two ram pumps.

These turbines accelerated from 0 to 30, 000rpm in 32mSecs and drove pumps through a 6 to 1 reduction gearbox which forced the propellants into the engines.

In some impulse pumps the gas trapped in the liquid ( usually water ), is released and accumulated somewhere in the pump, creating a pressure which can push part of the liquid upwards.

However, scarcity of spare parts for these type of pumps in some regions of Africa has diminished their utility for these areas.

Momentum transfer and entrapment pumps are more effective on some gases than others, so the pumping rate can be different for each of the gases being pumped, and the average volume flow rate of the pump will vary depending on the chemical composition of the gases remaining in the chamber.

The invention of wind powered pumping engines in the 15th century permitted drainage of some of the marginal land, but the final drainage of the lake had to await the design of large, steam powered pumps and agreements between regional authorities.

Most accelerator pumps are adjustable for volume and / or duration by some means.

In some houses, water pumps were installed, and some even had kitchen sinks and drains ( but no water on tap yet, except for some feudal kitchens in castles ).

One suggested origin of this myth is said to have been started by gas station companies because the cell phone signal would interfere with the fuel counter on some older model fuel pumps causing it to give a lower reading.

Hydraulic topics range through some part of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry, pumps, turbines, hydropower, computational fluid dynamics, flow measurement, river channel behavior and erosion.

Today, many of the oil wells and nodding donkey oil pumps are gone, although some remain.

New Brighton pumps some of its water from aquifers in dolomite / limestone rock formation.

The hand pumps can still be seen on private property around town, and some people still believe in the curative powers of the mineral waters.

The Green Goddess machines were not primarily fire engines ( AFS members referred to them as ' appliances '); they are more correctly titled " self propelled pumps ", some two-wheel drive ( 2x4 ), and others in four-wheel drive ( 4x4 ) form.

In most countries, including Australia and all of those in Europe, the " headline " octane rating shown on the pump is the RON, but in Canada, the United States and some other countries, like Brazil, the headline number is the average of the RON and the MON, called the Anti-Knock Index ( AKI, and often written on pumps as ( R + M )/ 2 ).

In some designs the camshaft also drives the distributor and the oil and fuel pumps.

Besides exchangers, other categories of transmembrane ATPase include co-transporters and pumps ( however, some exchangers are also pumps ).

All ion pumps have some sort of trigger or “ gating ” mechanism.

Large oil-filled power transformer s will have radiators to cool the insulating oil ( left side of this photo ); some units rely on natural circulation of oil through the radiator, others use pumps.

Also noticeable in some farmers ' fields, are oil pumps, particularly near Belle River and Leamington, Ontario, in the northern and eastern parts of the county, respectively.

It was situated close to the land drainage pumping station, which pumps into the tidal part of the Fossdyke, draining some of low-lying land to the south of Torksey.

For every one rotation, the pump has one compression of the hose, while pumps with multiple shoes or rollers have at least two compressions per revolution, and in some cases three or four.

* have good suction lift characteristics, some are low pressure pumps with low flow rates ; others are capable of higher flow rates, dependent on the effective working diameter of the diaphragm and its stroke length.

Furthermore, Cornell's system pumps significantly less warm water back into the lake than others further north which have been operating for decades, including the coal-fired power plant on the eastern shore.

These were used in cranes and aboard ships in Ancient Greece, as well as in mines, water pumps and siege engines in Ancient Rome.

Methods to manage water in cells are being developed like electroosmotic pumps focusing on flow control.

In China and the rest of the Far East, hydraulically operated " pot wheel " pumps raised water into irrigation canals.

As with Deep Water Culture, there is an airstone in the reservoir that pumps air into the water via a hose from outside the reservoir.

Indeed, plants growing in a typical traditional gravel filter bed, with water circulated using electric powerhead pumps, are in effect being grown using gravel hydroponics.

* Steam power – The improved steam engine invented by James Watt and patented in 1775 was at first mainly used to power pumps for pumping water out of mines, but from the 1780s was applied to power other types of machines.

Steam just above atmospheric pressure ( all that the boiler could stand ) was introduced into the lower half of the cylinder beneath the piston during the gravity-induced upstroke ; the steam was then condensed by a jet of cold water injected into the steam space to produce a partial vacuum ; the pressure differential between the atmosphere and the vacuum on either side of the piston displaced it downwards into the cylinder, raising the opposite end of a rocking beam to which was attached a gang of gravity-actuated reciprocating force pumps housed in the mineshaft.

Also participating in the agreement were the Belgian regional governments of Flanders, Wallonia, and Brussels ( which is not in the basin of the Meuse but pumps running water into the Meuse ).

This type of pump was used extensively in the early days of steam propulsion ( 19th century ) as boiler feed water pumps.

Reciprocating hand pumps were widely used for pumping water from wells ; the common bicycle pump and foot pumps for inflation use reciprocating action.

In the oil and gas fields, massive semi trailer-transported triplex or even quintuplex pumps are used to reinject into the ground produced water from " fracking " and oil production.

Gravity pumps include the syphon and Heron's fountain – and there also important qanat or foggara systems which simply use downhill flow to take water from far-underground aquifers in high areas to consumers at lower elevations.

Because water from pitcher pumps is drawn directly from the soil, it is more prone to contamination.

Modern hand-operated community pumps are considered the most sustainable low-cost option for safe water supply in resource-poor settings, often in rural areas in developing countries.

In water supply application, which are usually fitted with centrifugal pumps, individual large pumps should be 70-80 % efficient.

What was known was that suction pumps could not pull water beyond a certain height: 18 Florentine yards according to a measurement taken around 1635.

Since about 2000 water ballast tranfer pumps have become more common as have transversely swinging keels.

* Electric Submersible Pump, an artificial lift system that electrically drives multiple centrifugal stage pumps to lift oil and water from wells

Her foremast, already in bad shape before the battle, was struck by several French cannonballs, and her pumps, already overtaxed in an attempt to keep her afloat, were badly damaged by shots " between wind and water ".

In invertebrates that possess a circulatory system, the heart is typically a tube or small sac and pumps fluid that contains water and nutrients such as proteins, fats, and sugars.

Alexander of the Army Corps of Engineers had written in his surveys of the Central Valley's hydrology and irrigation systems of a great network of pumps and canals that would take water from the water-rich Sacramento River basin into drought-prone South and Central California, especially the San Joaquin Valley.