slide valve and qev airgun

Channel: Boks725   |   2012/12/11
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1
slide valve and qev airgun
slide valve and qev airgun
::2012/12/11::
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2
AHS02 Hand Slide valve
AHS02 Hand Slide valve
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CSH Screw Compressor - Slider Valve
CSH Screw Compressor - Slider Valve
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Mucon Slide Valve
Mucon Slide Valve
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Slide Valve
Slide Valve
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How Do Slide Gate Valves Work?
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Otto Slide Valve 4 cycle carrier flame ignition test engine
Otto Slide Valve 4 cycle carrier flame ignition test engine
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horizontal slide valve
horizontal slide valve
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Superbone ( slide/valve trombone )
Superbone ( slide/valve trombone )
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Pentair Slide Valve 261165 263064
Pentair Slide Valve 261165 263064
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Maxitrak Slide Valve Setting
Maxitrak Slide Valve Setting
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Lubricating a Slide Valve
Lubricating a Slide Valve
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First Start - 8Hp Schleicher Schumm Slide Valve Otto
First Start - 8Hp Schleicher Schumm Slide Valve Otto
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4 HP Slide Valve Otto Special Electric
4 HP Slide Valve Otto Special Electric
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Otto Slide Valve engine
Otto Slide Valve engine
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TDSH Slide Valve
TDSH Slide Valve
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10 HP Schleicher Schumm Slide Valve  Start-up April 21st 2013
10 HP Schleicher Schumm Slide Valve Start-up April 21st 2013
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Lake Side Farm Auction -1888 Crossley-Otto Slide Valve Piano Base 2hp - Aumann Auctions Inc.
Lake Side Farm Auction -1888 Crossley-Otto Slide Valve Piano Base 2hp - Aumann Auctions Inc.
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valterra pvc slide valve
valterra pvc slide valve
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Part 38 - PM #3 Steam Engine-Slide Valve
Part 38 - PM #3 Steam Engine-Slide Valve
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The First Test, Valve/Slide trumpet: Naga Phoenix
The First Test, Valve/Slide trumpet: Naga Phoenix
::2011/09/28::
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G7 remote line with slider valve
G7 remote line with slider valve
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23
1888 Crossley-Otto Slide Valve Piano Base Engine - Brings $320,000 at Aumann Auctions
1888 Crossley-Otto Slide Valve Piano Base Engine - Brings $320,000 at Aumann Auctions
::2012/12/04::
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24
10 HP Schleicher Schumm slide valve engine Start up week 2 after slide modification, re-rescraping
10 HP Schleicher Schumm slide valve engine Start up week 2 after slide modification, re-rescraping
::2013/04/28::
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25
CGI 3D Slide Valve Animation for 1883 10 Hp Schleicher Schumm Flame Ignition Engine
CGI 3D Slide Valve Animation for 1883 10 Hp Schleicher Schumm Flame Ignition Engine
::2012/08/20::
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26
Martini Slide Valve Flame Ignition Engine at 2013 Nuenen
Martini Slide Valve Flame Ignition Engine at 2013 Nuenen
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Vission 20/20 Slide Valve Calibration
Vission 20/20 Slide Valve Calibration
::2013/05/01::
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28
Redesigning a vertical slide valve steam engine - Phase Two.
Redesigning a vertical slide valve steam engine - Phase Two.
::2009/10/03::
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29
Film 1 of 2 Twin Cylinder 4 HP Deutz slide valve Special Dynamo service
Film 1 of 2 Twin Cylinder 4 HP Deutz slide valve Special Dynamo service
::2013/05/22::
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30
B300-Schieberplatte - slide valve
B300-Schieberplatte - slide valve
::2011/11/30::
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31
Hille Inverted Flame Ignition Slide Valve Engine at 2013 Nuenen
Hille Inverted Flame Ignition Slide Valve Engine at 2013 Nuenen
::2013/05/20::
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32
Slide Valve Engine,Stationary engine,Stationärmotor,Gasmotor,Perin-Panhard&Cie,OTTO
Slide Valve Engine,Stationary engine,Stationärmotor,Gasmotor,Perin-Panhard&Cie,OTTO
::2013/10/24::
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33
Forest slide valve carrier flame igniton engine .
Forest slide valve carrier flame igniton engine .
::2012/06/16::
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34
Otto Slide Valve Engine At Portland 2010
Otto Slide Valve Engine At Portland 2010
::2010/08/30::
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35
Perin Panhard slide valve gas engine
Perin Panhard slide valve gas engine
::2012/09/15::
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36
Crossley Piano Base Slide Valve Engine From Anson displayed at the 2013 Nuenen Rally
Crossley Piano Base Slide Valve Engine From Anson displayed at the 2013 Nuenen Rally
::2013/05/22::
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37
Double Block & Bleed Parallel Slide Gate Valve
Double Block & Bleed Parallel Slide Gate Valve
::2013/08/23::
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38
1884 10 HP Schleicher Slide Valve - Restoration Complete -  Test Run at 75 RPM
1884 10 HP Schleicher Slide Valve - Restoration Complete - Test Run at 75 RPM
::2013/07/29::
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39
Demonstration of Slow Speed operation  1883 Flame Ignition Forest Slide Valve  Reproduction Engine
Demonstration of Slow Speed operation 1883 Flame Ignition Forest Slide Valve Reproduction Engine
::2012/04/08::
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40
Inverted,slide valve,gas engine,Stationärmotor,Schiebermotor,Bockmotor,Standmotor
Inverted,slide valve,gas engine,Stationärmotor,Schiebermotor,Bockmotor,Standmotor
::2014/03/10::
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41
1888 Crossley-Otto Slide Valve Piano Base 2 HP @ Lake Side Farms Auction
1888 Crossley-Otto Slide Valve Piano Base 2 HP @ Lake Side Farms Auction
::2012/10/07::
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42
Valvola a lama Slide valve type SV
Valvola a lama Slide valve type SV
::2012/11/07::
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43
Crossley Inverted Slide Valve shown at Coolspring 2008
Crossley Inverted Slide Valve shown at Coolspring 2008
::2008/06/22::
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44
Quick slide valve demonstration
Quick slide valve demonstration
::2012/07/10::
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45
Steam tram powering home made slide valve engine
Steam tram powering home made slide valve engine
::2013/06/18::
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46
Film 2 of 2 Twin Cylinder 4 HP Deutz slide valve Special Dynamo service start up
Film 2 of 2 Twin Cylinder 4 HP Deutz slide valve Special Dynamo service start up
::2013/05/22::
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47
1884 10 HP Schleicher Schumm Slide Valve port verification
1884 10 HP Schleicher Schumm Slide Valve port verification
::2013/03/24::
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48
Two Cylinder Slide Valve Steam Engine Crankshaft: Video #1
Two Cylinder Slide Valve Steam Engine Crankshaft: Video #1
::2010/07/27::
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49
2nd  video of the slide valve flame ignition test engine
2nd video of the slide valve flame ignition test engine
::2013/02/10::
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50
Machining flywheels in place on a 1884 Slide Valve Otto
Machining flywheels in place on a 1884 Slide Valve Otto
::2012/08/15::
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From Wikipedia, the free encyclopedia
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Cylinder, with slide valve removed to show ports
A double-acting slide valve cylinder.
Steam enters via the steam port SP, and is admitted by the slide valve SV  through the upper passage S  to push down the piston P. At the same time, exhaust steam from below the piston passes back up the lower passage S, via the valve cavity, to exhaust E. As the piston descends, the valve moves upwards to admit steam below the piston and release exhaust from above.

The slide valve is a rectilinear valve used to control the admission of steam into, and emission of exhaust from, the cylinder of a steam engine.

The image description page explains how this SVG animation can be viewed

Use[edit]

In the 19th century, most steam locomotives used slide valves to control the flow of steam into and out of the cylinders. In the 20th century, slide valves were gradually superseded by piston valves, particularly in engines using superheated steam. There were two reasons for this:

  • With piston valves, the steam passages can be made shorter. This reduces resistance to the flow of steam and improves efficiency.
  • It is difficult to lubricate slide valves adequately in the presence of superheated steam.

Murdoch's D slide valve[edit]

Murdoch's long D slide valve

The D slide valve, or more specifically Long D slide valve, is a form of slide valve, invented by William Murdoch and patented in 1799. It is named after the hollow central D-sectioned piston.

This valve worked by "connecting the upper and lower valves so as to be worked by one rod or spindle, and in making the stem or tube which connects them hollow, so as to serve for an induction pipe to the upper end of the cylinder." This allowed two valves to do the work of four.

The above description (referring to upper and lower valves) clearly relates to an engine with a vertical cylinder, such as a beam engine. Where the cylinders are horizontal, as in a steam locomotive, the valves would be side-by-side.

Balanced slide valve[edit]

The balanced slide valve was invented by the Scottish engineer Alexander Allan. It was not much used in the UK but, at one time, had great popularity in the USA. It gave some of the advantages of a piston valve to a slide valve by relieving the pressure on the back of the valve, thus reducing friction and wear.

See also[edit]

External links[edit]

Wikipedia content is licensed under the GFDL License

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