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Lêer:Steam locomotive work.gif

Steam_locomotive_work.gif ‎(491 × 222 piksels, lêergrootte: 87 KG, MIME-tipe: image/gif, herhalend, 8 rame, 0,8 s)

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Opsomming

Beskrywing
English: Steam locomotive wheels, valve & engine animation.

Walschaerts valve gear (mechanism for moving the valve in a steam engine).

Item 2 is a crank outside of the main crankpin. Its "timing" is a quarter turn away from the power crankpin. This provides the main force to move the valve.

Item 1 is pivoted (little dot, just below the callout arrow) to the frame (light gray) in the middle, so it rocks back and forth. It has a groove (inside; not shown) along its length, which carries a sliding block, pivoted on the left end of link 3. The engineer moves pushrod 8 left and right to move link 3 up and down.

If the link is below center, the engine moves backwards. If the link is near to the center, steam is conserved for ordinary running when up to speed.

The short link below the numeral 3 (not the arrow) that seems to point up into the air "from the wheel edge" is pivoted on the frame (not shown) at its upper end. It supports the rest of the links below it. The right end of link 3, therefore, doesn't move up and down much; its sidewise motion operates the valve.

Item 4 is the crosshead, the sliding piece that guides the piston rod. (Callout 4 also points to a link that improves valve timing.)

Note the typically-European piston rod -- it's very long, and unlike American (and some other) designs, it extends out front (to the right). The other types of locos. don't have any piston rod to the right side of the piston.

Item 5 is the pivot where the main connecting rod (long groove. shown, to make it lighter) connects to the crosshead.

Item 6 is the cylinder and valve block. Pinkish color is steam from the boiler. Exhaust is white. The valve is a pair of black vertical stripes, connected together. (It's shaped something like a spool.)

As shown (without animation), steam is going into the right side of the cylinder (Item 7), pushing the piston to the left. The piston rod pushes the crosshead, which pushes the main connecting rod. (The piston is in the middle of the cylinder. Unlike pistons in internal-combustion engines, steam pistons are discs.)
Deutsch: Heusinger- oder Walschaert-Steuerung

Legende:

1 - Schwinge
2 - Gegenkurbel (Schwingenkurbel)
3 - Schieberschubstange
4 - Voreilhebel
5 - Kreuzkopf
6 - Steuerzylinder mit Schieber
7 - Dampfzylinder
8 - Steuerstange
Bron Drawn by Panther using Corel Draw & Adobe Image Ready. The idea was taken from the book about 1-3-1 «Russian Prairie» «C» series locomotives by A.S. Nikolskiy, Moscow, 1997 (1-3-1 is in Russian notation, calculated by wheel pairs)
Outeur Panther
Toestemming
(Hergebruik van die lêer)
Ek, die outeursreghouer van hierdie werk, publiseer dit onder die volgende lisensie:
GNU head Toestemming word verleen tot die kopiëring, verspreiding en/of wysiging van hierdie dokument onder die voorwaardes van die GNU-lisensie vir vrye dokumentasie, weergawe 1.2 of enige latere weergawe uitgegee deur die Stigting vir Vrye Sagteware, sonder Invariante Dele, geen Voorbladtekste en geen Agterbladtekste. 'n Kopie van hierdie lisensie is ingesluit in die afdeling getiteld GNU Free Documentation License.
w:af:Creative Commons
naamsvermelding insgelyks 		Hierdie lêer is gelisensieer onder die Creative Commons Erkenning-Insgelyks Deel 3.0 Onoorgedraagde lisensie.
U is vry:
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Onder die volgende voorwaardes:
  • naamsvermelding – U moet die nodige krediet gee, 'n skakel na die lisensie verskaf en aandui of daar veranderinge aangebring is. U mag dit op enige redelike manier doen, maar nie op enige manier wat daarop dui dat die lisensiegewer u of u gebruik onderskryf nie.
  • insgelyks – As u die materiaal hermix, transformeer of voortbou, moet u u bydraes versprei onder die dieselfde of versoenbare lisensie as die oorspronklike.
This licensing tag was added to this file as part of the GFDL licensing update.
w:af:Creative Commons
naamsvermelding insgelyks
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
U is vry:
  • om te deel – die werk kopieer, versprei en deurgee
  • om te hermeng – om die werk aan te pas
Onder die volgende voorwaardes:
  • naamsvermelding – U moet die nodige krediet gee, 'n skakel na die lisensie verskaf en aandui of daar veranderinge aangebring is. U mag dit op enige redelike manier doen, maar nie op enige manier wat daarop dui dat die lisensiegewer u of u gebruik onderskryf nie.
  • insgelyks – As u die materiaal hermix, transformeer of voortbou, moet u u bydraes versprei onder die dieselfde of versoenbare lisensie as die oorspronklike.
U kan die lisensie van u keuse kies.
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Steam locomotive wheels, valve and engine animation

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Lêergeskiedenis

Klik op die datum/tyd om te sien hoe die lêer destyds gelyk het.

Datum/TydDuimnaelDimensiesGebruikerOpmerking
huidig02:25, 22 April 2014Duimnaelskets vir weergawe vanaf 02:25, 22 April 2014491 × 222 (87 KG)CapmoReverted to version as of 16:59, 20 April 2005 - faster is better for seeing how it works
13:20, 3 Junie 2006Duimnaelskets vir weergawe vanaf 13:20, 3 Junie 2006491 × 222 (85 KG)JeLuFReupload, trying to force rerendering of thumbnails
15:20, 25 Januarie 2006Geen duimnaelskets (85 KG)Ed g2sMuch slower
16:59, 20 April 2005Duimnaelskets vir weergawe vanaf 16:59, 20 April 2005491 × 222 (87 KG)PantherSteam locomotive wheels animation {{cc-nc}} Category:Steam locomotive parts

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