Talk:Opposed-piston engine

message: Removed text:
==External links==
*Stelzer engine schematic
This site does not describe an opposed piston engine. The designer appears to wish to use the term, but his engine does not seem to have been built or demonstrated, and until it is the existing engines surely have priority on the name. His intentions may be quite innocent, but a cynic would point out that the concept of the existing engines has been demonstrated to work, while the concept he calls opposed piston is completely different, and has not. Andrewa 03:32, 11 Nov 2004 (UTC)
replies: text: The link is now offline. See also Talk:Stelzer engine. Andrewa 01:05, 6 October 2005 (UTC)
thread_title: Stelzer engine

message: Paragraph 4 currently begins "Both the Jumo and Deltic engines used one piston per cylinder to expose an intake port, and the other to expose an exhaust port."  This is also true of the F-M engines as described at the web page already referenced and at others, including U.S. Navy manuals for submarine engines (see pages 16 and 17 at this link http://www.maritime.org/fleetsub/diesel/chap1.htm#1C
7802mark 20:21, 25 May 2006 (UTC)
thread_title: Intake and Exhaust in Fairbanks-Morse Engines

message: Maybe I'm missing a point, but the captions for the inlet and exhaust crank mechanisms (no. 5 and 6 on the cutaway diagram) seem to be incorrectly labelled. --Slashme 08:01, 28 June 2006 (UTC)
replies: text: The labelling is correct. The outlet piston opens (closes) the exhaust slots, the inlet piston is doing so with the inlet slots. The fuel-air mixture is flowing from (1) to (3), then trough the crankshaft housing to the inlet slots. But the outlet crankshaft housing is connected with the airbox, too. It is for cooling the piston bottom. UtzOnBike --85.179.167.210 21:40, 11 October 2006 (UTC)
thread_title:  Inlet and exhaust cranks wrongly captioned? 

message: From which country Raymond Koreyvo came (Kolomna Works?) Is that Russia? Why hi patented his opposed piston diesel engine in France? Has anybody ever tried the concept before Junkers?  —Preceding unsigned comment added by 86.147.234.117 (talk) 12:08, 10 September 2007 (UTC)
thread_title:  Who is the R. Koreyvo (Kolomna Works)? 

message: Aside from one word ("efficiency") in the caption to a photo, there is no direct indication of the advantages and disadvantages of an opposed-piston design. The article would definitely benefit from such a section.  — Preceding unsigned comment added by 98.231.177.64 (talk) 13:51, 8 October 2011 (UTC)
replies: text: If I can piggy-back on this comment eight years later, why are/were they mainly used in large industrial applications?  Why is it that apparently noone is making or using  them now?  Seems like the kind of thing that should be in the entry.  For example, the advantage of the wankel is it is small, light, makes a lot of power for its weight; the disadvantage it is inefficient in terms of fuel consumption, doesn't make power at low rpms, and tends to leak. There should at least be something like that for the opposed piston. 141.156.187.235 (talk) 03:48, 30 December 2019 (UTC)
thread_title:  Nevertheless, an Advantages section is needed 

message: Hello fellow Wikipedians,
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*Added archive https://web.archive.org/20051220022545/http://home.arcor.de:80/hildst/EnEx99e.html to http://home.arcor.de/hildst/EnEx99e.html
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thread_title:  External links modified 

message: Should boxer engines be mentioned?  Is a boxer engine the same as a horizontally arranged opposed-piston engine?  If not, what is the difference?  Joreberg (talk) 16:58, 2 June 2022 (UTC)
replies: text: A boxer engine is a type of flat engine. See the animation at the top of that page, and compare it with the one at the top of this article. You should be able to see the difference. If that doesn't help, let me know, and I'll try to explain it. BilCat (talk) 05:28, 3 June 2022 (UTC)
thread_title:  What about boxer engines?