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three throw pump

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In the operation section it says

At the lower end this drives a horizontal shaft through a gearbox, which typically drives three throw pump.

The end of this sentence makes no sense. Should it be "free flow pump"? (Not that I'm saying such a thing exists, but the words as they are make no sense at all.)

91.108.13.67 (talk) 12:43, 26 January 2008 (UTC)[reply]

Three throw pump is correct - i.e. a pump with three pistons operated by a crankshaft. Mjroots (talk) 12:50, 26 January 2008 (UTC)[reply]

I fixed the wording so that the sentence makes good English sense and doesn't need an obscure footnote. Mjroots immediately put it back to weird. Now it is your turn to decide it you want to try to fix this.

It should read something like this:

The rotor is turned by the wind, and through a bevel wheel drives a shaft inside the column (if used) or in the centre of the tower. At the lower end this drives a horizontal shaft through a gearbox, which typically drives a pump crankshaft via three pistons.<ref name=Book/>

-96.237.79.6 (talk) 17:33, 13 September 2010 (UTC)[reply]

Three throw pump is perfectly normal engineer's English. Your revised version above implies that the crankshaft is driven by three pistons, not that it drives three pistons. Ghughesarch (talk) 00:42, 22 November 2010 (UTC)[reply]

Why the stator?

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The article makes a big deal of the fact that it has a stator, but doesn't explain what that is or why the device has one. Can anyone clarify? --Doradus (talk) 13:27, 26 January 2008 (UTC)[reply]


Ehm , all wind turbines have a stator and rotor but the terms are used differently, this is referring to waterpumping turbines which would usually use a shaft and piston type pump, if you click on 'rotor' it shows you more ... Aicchalmers (talk) 13:49, 26 January 2008 (UTC)[reply]

The Axial compressor article, which deals mainly with jet engines, shows how the flow of gas goes through a series of rotors and stators. A modern wind turbine has the rotor part, but the wind does not pass through a stator before hitting the rotor (blades) of the wind turbine. On the éolienne, the wind passes through a fixed ring of blades (the stator) before driving the sails (rotor). This is its unique feature.Mjroots (talk) 15:17, 26 January 2008 (UTC)[reply]

New section added explaining the significance of the stator.Mjroots (talk) 15:30, 26 January 2008 (UTC)[reply]

WP:FRANCE

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Hi, I assessed this article for WP:France and wanted to mention that I think it looks great. Maybe a copy edit here and there, but otherwise very informative and interesting. Lazulilasher (talk) 17:27, 30 January 2008 (UTC)[reply]

Bollee

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Thank you for recording this technology. To evaluate it it would be useful to know the height the 3.53m model was pumping to for the flow rates and windspeeds given. Also whether with the modular construction the rotor and stator blades were the same size.

I will try to refer to this page in my current paper in Wind Engineering on Contra-Rotating windmills if the editor will allow me to make the addition. Dr. Simon Farthing spfd@cantab.net 199.243.30.162 (talk) 19:46, 19 November 2010 (UTC)[reply]

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