Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 43 users online :: 5 registered, 0 hidden and 38 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], jimmy101, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Expansion chamber?!?! what is that anyway?

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
Sponsored 
  • Author
    Message

Expansion chamber?!?! what is that anyway?

Unread postAuthor: Spedy » Sat Jul 21, 2007 12:46 pm

I was wondering what an expansion chamber was, I've read about guns that use them a bunch, and I'm still clueless as to what they are exactly. Could someone help me out here?

YES, I did search, so don't bug me about that.
  • 0


Spedy
Staff Sergeant
Staff Sergeant
 
Posts: 108
Joined: Thu Jun 21, 2007 4:15 pm
Reputation: 0

Unread postAuthor: benstern » Sat Jul 21, 2007 1:01 pm

they are not used in combustion guns....
  • 0

User avatar
benstern
Donating Member
Donating Member
 
Posts: 909
Joined: Wed Sep 21, 2005 8:24 pm
Reputation: 0

Unread postAuthor: Hubb » Sun Jul 22, 2007 5:56 pm

An expansion chamber is exactly that, a chamber used to expand gases before they are used. They are mainly used on pneumatics that work off of CO2 (to allow the liquid CO2 to expand to a gas), however, combustion guns also have an expansion chamber (the main chamber would technically be classified as an expansion chamber, as it allows the gas to expand for usage).
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: Pete Zaria » Sun Jul 22, 2007 7:32 pm

Moved to Construction Materials discussion.

Peace,
Pete Zaria.
  • 0

User avatar
Pete Zaria
Moderator
Moderator
 
Posts: 978
Joined: Fri Mar 31, 2006 6:04 pm
Location: Near Seattle, WA
Reputation: 0

Unread postAuthor: pyrogeek » Sun Jul 22, 2007 8:01 pm

An expansion chamber could be used on a combustion. But, for propane or butane fuel. The chamber allows the gas to expand and warm up so it gets to the temperture it will be used at and can then be metered more accurately. This has to do with this gas/pressure law that states that as a gas warms up, it expands and as a gas gets cooler it will contract and be at a lower volume. This holds true for gases like CO2, propane, butane, freon, etc. Nitrogen is not affected, or at least as much which is why it is used in shock absorbers and sometimes in tires so as the temperture changes the pressure will remain more constant.
  • 0

I'm weird, I know it, you don't need to tell me.

pyrogeek
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 457
Joined: Sat May 13, 2006 7:43 pm
Location: moline Illinios
Reputation: 0

Return to Construction Materials/Ammo Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], jimmy101, Yahoo [Bot]

Reputation System ©'