Talk:Pulser pump

I don't understand it

How does it lift water higher than it's input? I don't understand this. If a parcel of water fell from a height, it would not gain enough energy to rise any higher than it came from - push a ball off a table top and it can't bounce any higher than the table top (if you don't throw it at the floor). So where does the energy come from to push some of the water higher than it's input? I think I understand how a hydrauic ram works in a qualitative sort of way - if you stop a lot of water moving fast, and only allow a small part of that water to escape, it's going to absorb the energy of the larger mass and so can rise higher. But there's no VALVE! Why doesn't the water just piddle away into the outlet tube which is so much lower? --Wtshymanski (talk) 20:54, 25 March 2011 (UTC)

The answer is simple: The pulser pump works only if you have a source of pumped water. The air accumulates and pushes the water. No magic and no "over unity". 1) If you would put the water in a closed tube and then fill it with sand, the water would rise higher than it originally was as well. 2) Same with a hydraulic shape. If the water goes down a pipe and comes back up through a thin nozzle, SOME of it will reach higher than the original.

So the energy to take the air down is the same needed to push the water up. פשוט pashute ♫ (talk) 10:27, 3 April 2011 (UTC)

Look at how Airlift pump works, then look at Trompe. This is a trompe which is pumping air to the bottom of an airlift pump. Air bubbles carry water upward between the bubbles. It could be improved by adding the geyser pump design, which increases the strength of the pulses. -- SEWilco (talk) 18:41, 29 May 2011 (UTC)

Hydraulic gas pumps?

What is the efficiency of the hydraulic air pump? Why aren't they used as gas compressors in HVAC? Or as aquarium air pumps? A 40 LPM aquarium air pump for example can cost $20 and more, while a tiny 2$ water pump for windshield wipers gives much higher pressure and flow. Any thoughts? פשוט pashute ♫ (talk) 10:36, 3 April 2011 (UTC)

Pulser pump research at Loughborough University.

Late last year I helped a guy at Loughborough University with some ideas and explaining some concepts for his pulser pump research project. 3 or 4 days ago he sent me a pdf of the research and results and I am allowed to distribute it. Would you like to add it and a link to it in the references? It is 5.something megabytes. You can download it in http://www.instructables.com/community/Pulser-pump-research-from-Loughborough-University/ but I have no idea how long forums stay up on that site. I have Michael Turners email address, and the copy of the pdf he sent me and I probably Brian Skinners email address too if needed. Thanks Brian White. (I am mentioned in the pulser pump article so I know I am not allowed to do anything to it) Gaiatechnician (talk) 05:26, 17 June 2013 (UTC)

Hydraulic air compressors

The article states: "However, Charles H. Taylor invented the hydraulic air compressor before the year 1910 while living in Montreal"

This is incorrect. Hydraulic air compressors exist since medieval times. Commonly called "Trompe", hydraulic air compressors were part of the "Catalon forge", a bloomery furnace for producing iron.