Talk:Poppet valve

Untitled[edit]

I'm not sure about auto racing engines, but the previous edit may have made it sound like the highest speed (or most, or even many) motorcycle engines used desmodromic valves, when in fact most of them do not (anymore, at least). Ducati certainly uses them, but equally or higher speed engines from Honda, Suzuki, Yamaha, Kawasaki, etc. do not use desmodromic valves. My edit changed "very high speed" to "some high speed". Shiny side up. -- Ds13 06:54, 2004 Apr 9 (UTC)

source 98.194.209.247 ??[edit]

Revision as of 02:07, 26 September 2007 (edit) (undo)98.194.209.247 (Talk) (→Valve position)

Wdl1961 (talk) 19:42, 16 February 2009 (UTC)[reply]

Wdl1961, do not remove valid maintenance templates. They belong in the article, not on the article's talk page. —Scheinwerfermann ^T·_C21:20, 16 February 2009 (UTC)[reply]

"Puppet" usage[edit]

The 1996 U.S. patent semi-cited as support for modern usage of "puppet valve" as an alternate term for "poppet valve" is not reliable. If you go take a look at it, you'll notice that while its title contains the word "puppet", its text refers to poppet valves (except where it erroneously refers to "popper" valves). Given the proximity of "u" to "o" and of "r" to "t" on the QWERTY keyboard, and the vagaries of OCR, Occam's razor suggests the most likely explanation for the anachronous appearance of "puppet valve" is simple typographical error. We'd need to see the original patent application or file to check for sure, and unless or until we can do that, I think we have to consider that particular source unreliable. If there is other, more reliable evidence for modern usage of "puppet valve", let's find it and incorporate it, but for now it looks like "puppet valve" is quite obsolete.

(I say that patent was semi-cited because it was added in halfway fashion. "See for example patent number such and such" is not a citation. Please properly format your citations. —Scheinwerfermann ^T·_C21:07, 13 March 2009 (UTC)[reply]

ref

onlinedictionary.datasegment.com/word/puppet+valve - 6k - Similar pages

Wdl1961 (talk) 02:34, 1 July 2009 (UTC)[reply]

Puppet valve, a valve in the form of a circular disk, which
       covers a hole in its seat, and opens by moving bodily away
       from the seat while remaining parallel with it, -- used in
       steam engines, pumps, safety valves, etc. Its edge is
       often beveled, and fits in a conical recess in the seat
       when the valve is closed. See the valves shown in Illusts.
       of Plunger pump, and Safety valve, under Plunger,
       and Safety.
       [1913 Webster]

expansion[edit]

wiki articles in other languages are more expansive but have no refds therefore not suitable for trasslation

Wdl1961 (talk) 02:41, 1 July 2009 (UTC)[reply]

Poppet vs. Puppet[edit]

According to a few old books (particularly Audel's books) the origin of the term puppet for these valves comes from the similarity of the shape of the valve to the shape of the puppet on old style lathes. —Preceding unsigned comment added by 70.240.50.80 (talk) 17:11, 19 July 2009 (UTC)[reply]

Terrific. Can you please add such a note to the relevant section of the article, with a specific citation to an Audel or other book containing that information? Thanks! —Scheinwerfermann ^T·_C18:40, 19 July 2009 (UTC)[reply]

Advertising?[edit]

I've removed the following sentence as it looked suspiciously like advertising:

Marotta direct acting solenoid valves use a balanced poppet to keep solenoid coil size and power requirements to a minimum. <ref name="balanced_poppet_design_reference">"[http://www.marotta.com/tech-info-a-faqs/balanced-poppet.html What is a Balanced Poppet? on Marotta.com]."</ref>

... but if I'm incorrect in that assumption, do please put it back! --—Vom ^(talk) 21:11, 2 July 2010 (UTC)[reply]

'Steam' engines and 'beam' engines[edit]

In the discussion on the page of Watt's early use of poppet valves, every few weeks someone changes the term 'beam engine' to read 'steam engine'. Beam engine is the correct term. That is why it gets changed back to 'beam engine' every time. Stringybark (talk) 11:28, 18 August 2013 (UTC)[reply]

That's Wikipedia for you - the encyclopedia that anyone can edit.

Today we've got this change which claims that "Changed invention date of poppet valve, per this source, which states that slide valves were used in locomotives prior to its 1833 invention." <sigh> Because of course if at least one steam engine used slide valves, that means they all did. Andy Dingley (talk) 21:44, 26 September 2017 (UTC)[reply]

Derivation of the word Poppet[edit]

I have amended the incorrect French derivation given, of poupe, which actually translates as the English naval term poop, ie the rear of a ship. In fact, the French word from which puppet and poppet derive (and puppy too, for that matter!) is poupée, and all of these trace back to an original Latin word, puppa. Humboles (talk) 23:42, 9 January 2017 (UTC)[reply]