Talk:X-engine

Did LiquidPiston write this?

This article reads like marketing copy. Wikipedia is not a place for companies to promote their products.

Until this motor is proven, in production, and measured, hailing it as a revolutionary new invention and quoting unverified projections from the manufacturer is not warranted.

This article should be nominated for deletion.

Another option would be to change the article from one about a perported invention to one about the company which is trying to get funding from investors. — Preceding unsigned comment added by 4.59.197.248 (talk) 23:16, 28 May 2021 (UTC)[reply]

Regardless who wrote the article, the engine seems to exist and work. According to LiquidPiston they got a contract with Air Force about one year ago. So, I don't see reasons for deletion. Instead I see reasons to improve the article, so that it would look less like an advertisement. ⸻Nikolas Ojala (talk) 10:31, 13 April 2022 (UTC)[reply]

Rotary?

Is this engine supposed to be a Rotary engine or is it supposed to be a Pistonless rotary engine? --Athol Mullen 00:42, 19 September 2007 (UTC)[reply]

According to the article Piston: "It is the moving component that is contained by a cylinder and is made gas-tight by piston rings." I'd say LiquidPiston engine is pistonless. ⸻Nikolas Ojala (talk) 11:00, 13 April 2022 (UTC)[reply]

It's a rotary piston, the whole piston article is flawed as there are plenty of pistons without piston rings, and their motion can be both linear and angular. 195.196.97.2 (talk) 08:07, 4 November 2022 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Liquidpiston. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20120229142013/http://papers.sae.org/2010-01-1110/%2C to http://papers.sae.org/2010-01-1110/%2C

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 17:22, 16 May 2017 (UTC)[reply]

I'm surprised that nobody has pointed out that this is a Cooley engine: http://www.douglas-self.com/MUSEUM/POWER/rotaryengines/rotaryeng6.htm#cool

Tkircher (talk) 08:12, 26 July 2022 (UTC)[reply]

Not quite. It looks like a derivative of the Umpleby engine, which was an internal combustion derivative of the Cooley engine. 80.208.71.81 (talk) 06:25, 10 December 2022 (UTC)[reply]

Wrong picture

The picture is of a standard Wankel engine. The Liquid Piston (what a goofy name) concept is the inverse of that. The wipers are on the fixed part of the engine rather than on the rotor. The fixed part is the triangular part. The rotating part has the smooth surfaces with no apexes. WithGLEE (talk) 22:27, 11 February 2023 (UTC)[reply]

I have just replaced it. Stepho talk 23:33, 11 February 2023 (UTC)[reply]