|WikiProject Engineering||(Rated Start-class)|
|WikiProject Physics / Fluid Dynamics||(Rated Start-class, Low-importance)|
- 1 Wikia
- 2 This page should
- 3 Technical details missing
- 4 Creating useful work?
- 5 ALL energy used to run the compressor is converted to heat?
- 6 Proposed merge with compressed-air engine
and pneumatic actuator
- 7 Rotary vane motor
- 8 Illustrations and History
- 9 Fraud and scams with air engines and pneumatic motors
- 10 Carbonic Gas Motor
- 11 Player pianos
- 12 Semantics
- 13 Mentioning of pneumatic motors on CO2 ?
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 220.127.116.11 (talk) 22:28, 23 September 2008 (UTC)
This page should
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)
- It has been suggested the the recently expanded stub Pneumatic motor and the Pneumatic actuator article be merged with this article. The actuator page cites no sources and comments on the discussion question its credibility, but the pneumatic motor page does provide a reliable exploration of more technical aspects of the subject. Thoughts? —Preceding unsigned comment added by Randischieber (talk • contribs) 17:10, 13 March 2010 (UTC)
Technical details missing
- How do you check the efficiency of air powered motors?
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)
- What is the output (in one place horse-power in another torque...)?
- More details are needed, so that we can compare these motors to other types (electric, combustion, hydro).
- What are the benefits and drawbacks of these engines? —Preceding unsigned comment added by Pashute (talk • contribs) 14:06, 18 May 2008 (UTC)
- I, personally, contest this article's claim that the cylindrical piston is frictionless. This is a perjorative statement that cites an uncited Wikipedia paragraph as its source. Additionally, the source itself states that some of the air becomes heated in the engine as a result of the action of the engine, indicating that there is, indeed, friction involved. —Preceding unsigned comment added by 18.104.22.168 (talk) 18:26, 5 July 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:
- The power output
- The compression rate of the input air required to achieve the output
- The rate at which it uses that air. —Preceding unsigned comment added by 22.214.171.124 (talk) 02:48, 6 September 2008 (UTC)
Creating useful work?
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?
"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)
- Agreed, that whole section reads like OR (or more accurately stuff someone made up). Greglocock (talk) 12:17, 27 January 2009 (UTC)
Proposed merge with compressed-air engine
and pneumatic actuator
Rotary vane motor
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
Illustrations and History
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)
Fraud and scams with air engines and pneumatic motors
Carbonic Gas Motor
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 126.96.36.199 (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. 188.8.131.52 (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. 184.108.40.206 (talk) 21:08, 3 May 2014 (UTC)
Rhomboidal-shaped sounds tautological to me. Shouldn't this be either "rhomboidal" or "rhombus-shaped"?
Mentioning of pneumatic motors on CO2 ?
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)