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I think one could create a CA Wikia (compressed air engine and vehicle Wikia). -- Mac ( talk) 15:04, 4 February 2008 (UTC)
I think that all "pure" technical information about air motors should be moved to "Air Motors". Any information about proprietary developments, particularly vehicle propulsion should have their own heading. In engineering terms an engine converts chemical energy to heat (as in a gasoline engine). Motors use their energy form directly without conversion, such as electrical motors and air motors. You don't say "I am going to put my blender engine on Frappe!", do you? If you want to verify this, talk to the PR person at Gast, one of the largest industrial air motor manufacturers. I don't think they will be satisfied that the industry that they helped develop is being redesignated by some marketing effort to equate this form of motor with an auto engine so that it will be better accepted in the market place. That issue can be put under "Compressed Air Cars". —Preceding unsigned comment added by 75.166.109.130 ( talk) 22:28, 23 September 2008 (UTC)
It is a single purpose article devoted to Quasiturbine, which already has its own article, and yet the main topic of compressed air engines is covered in CAES. So either we move ALL that air engine stuff here (maybe not a bad idea) or kill this page. Greg Locock ( talk) 09:34, 7 February 2008 (UTC)
15% efficiency for air engine are annouced into brackets (end of the article): it seems low. Sources? —Preceding unsigned comment added by Ant 88 ( talk • contribs) 13:49, 17 September 2008 (UTC)
HP and torque are not competing scales, they are separate measures; not interchangeable. It therefore may not be useful or even possible to use a consistent term across the entire article.
Each motor is, naturally, unique. It is therefore impossible to compare 'these' motors to 'other types'. There are general characteristics that will hold true across most air motors, but this is like saying we need more details about combustion engines, which includes a weed-whacker, a diesel power-plant, and the gamut in between. The range is too diverse to (a) hold true for most models, and (b) include anything but the most superficial level of detail.
The most important things you need to know about any air engine are the following:
It creates useful work by expanding compressed air. - if it needs somebody to compress the air, which requires work, then it doesn't create useful work, it just moves it from one place (or time) to another. Totnesmartin ( talk) 11:34, 10 August 2008 (UTC)
Decompression of pneumatic bladders in microgravity environments can create useful work, utilizing both the vacuum of space and if necessary thermodynamics of fluids. Aditya.m4 ( talk) 21:16, 11 August 2009 (UTC)
"ALL energy used to run the compressor is converted to heat due to friction." This statement makes no sense. Obviously, some of the energy is converted into air pressure. Also, most of the heat generated by a compressor is due to compression, not friction. -- Dwane E Anderson ( talk) 23:49, 25 January 2009 (UTC)
This article as well as Pneumatic actuator - which is a technical page, and the compressed-air engine should all be merged.
(un-indent) OK, after doing some research there isn't any real difference between the air motors found in vehicles (as mostly outlined in compressed-air engine) and all other applications (as outlined in pneumatic motor). Compressed air engines all used one of three mechanisms to convert compressed air directly to mechanical energy: axial piston, rotary vane, or a rotary piston. [1] The underlying principle is that the energy comes from the expansion of the air and not its use to aid in another energy generating system (i.e. a heat engine). As such, they should definitely be merged. Greglocock, your observation that the compressed-air motors might in fact be external combustion engines or internal combustion engines is incorrect by their definitions. EC engines are heat engines and IC engines are...well they aren't compressed-air engines. (Do note that people have incorrectly defined a heat engine as an air engine, see this).
As far as the actuator page goes, I'm leaning toward not merging them, because an actuator does a limited motion, whereas a motor creates motion over the full 360° degrees of rotation. Note that's my definition of actuator, because neither the pneumatic actuator nor the actuator article properly define it.
Other good refs: [2] [3] [4]. Wizard191 ( talk) 17:45, 16 March 2010 (UTC)
Can rotary vane motors be explained better, also axial and radial piston motors seem intresting. Finally, the Gerotor air motor also seems intresting, and turbine air motors also seem to be intresting, see http://www.hydraulicspneumatics.com/200/TechZone/FluidPowerAcces/Article/True/6422/TechZone-FluidPowerAcces
Rotary air engines seem also produced in relatively large numbers, ie see [www.lineymachine.com/ Halo Rotary engine] 91.182.133.92 ( talk) 12:44, 27 February 2011 (UTC)
The pictures of vehicles are interesting but there should also be pictures of pneumatic motors; photographs of real motors and sectional schematics illustrating the various mechanisms. There should also be a section or sections on the history of development. Eventually this article might be divided into articles, each devoted to a specific type of motor. Regards, ... PeterEasthope ( talk) 16:11, 23 July 2011 (UTC)
So nobody wants to talk about that? See Compressed air car#Energine. פשוט pashute ♫ ( talk) 12:04, 29 August 2011 (UTC)
Any information on these? It seems they are quite similar but use carbon dioxide gas, either from liquid or just compressed, to operate. Perhaps they should be included here also. AMCKen ( talk) 01:20, 18 March 2012 (UTC)
I was thinking that a pure oxygen motor could also be mentioned. Not sure though whether there would be any changes in comparison to a regular air engine. See http://en.wikipedia.org/wiki/Torpedo#Compressed_oxygen 91.182.178.247 ( talk) 14:12, 16 July 2012 (UTC)
Player pianos need rotary motors to power the take-up reels which accumulate the paper rolls as they pass the row of holes which sense the presence of holes in the paper as it passes by. These consist of about three to six bellows which are activated (that is, by applying vacuum to them, they collapse) in sequence. They are attached to a sort of crankshaft with offset bearings so it is made to turn as each bellows collapses. The crankshaft's rotation is usually translated to the take-up reel by a chain loop. 172.56.27.183 ( talk) 20:53, 3 May 2014 (UTC)
The discussion about the merger is settled, apparently, but I feel impelled to point out that "motor" and "actuator" have the same meaning. One stresses "motion" and the other "action", but they essentially point to the same phenomena. Also, linear and rotary do not exhaust the possible varieties of action. The wings of birds and bats are pneumatic motors. So are sunny parking lots and loudspeakers. 172.56.27.205 ( talk) 21:08, 3 May 2014 (UTC)
Rhomboidal-shaped sounds tautological to me. Shouldn't this be either "rhomboidal" or "rhombus-shaped"?
The reference to CO2 has been reverted. Many pneumatic motors used in pneumatic tools run on CO2 though, and pneumatic motors made in the past specifically for CO2, which haven't been mentioned at any page at there are also pneumatic motors made specifically for running on CO2 (i.e. Gasparin, CÉTONIA, IDEAL, and various Bill Brown Motors and RADIGUET-MASSIOT models). It could also be clearified on the page whether most pneumatic motors (not originally intented for running on CO2) could run on this gas. KVDP ( talk) 16:42, 2 July 2017 (UTC)
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The section copied below is FLAT-OUT BULLSHIT: NAME EVEN ONE TYPE OF AIRCRAFT -- USED AS A "COMMERCIAL AIRLINER" -- THAT IS "POWERED BY COMPRESSED AIR" (in fact, "commercial airliners" use ENORMOUS amounts of jet fuel to power their turbofan engines -- whoever wrote this section of the "Pneumatic Motor" article clearly doesn't know what they are talking about).
==Flight== Transport category airplanes, such as commercial airliners, use compressed air to power the main engines. The air is supplied by the load compressor of the aircraft's auxiliary power unit, or by ground equipment. It's superior power to weight ratio is so much greater than jet fuel that almost all planes are now powered by compressed air.