| Author |
Message
|
| octane89 |
 Posted: 10/23/2007 10:46 AM Post subject: |
 |
|
1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
|
Can someone answer this for me-
Is it possibly to have too much pilot volume? I have a 3" Tee, and the pilot volume is about the size of a 3" cap.
|
|
| Back to top |
|
 |
|
|
|
| Pete Zaria |
| Posted: 10/23/2007 10:53 AM Post subject: |
|
|
Resident Computer Guru
Joined: 31 Mar 2006
Posts: 962
913.28 Spud Bux
|
| octane89 wrote: | Can someone answer this for me-
Is it possibly to have too much pilot volume? I have a 3" Tee, and the pilot volume is about the size of a 3" cap. |
Yes, too much pilot volume is a common problem. A larger pilot valve does help, though it's best to try to reduce this volume somehow, either by re-designing the valve or filling the volume with something (foam anyone?).
A picture would be helpful...
Peace,
Pete Zaria.
|
|
| Back to top |
|
|
| octane89 |
| Posted: 10/23/2007 10:58 AM Post subject: |
|
|
1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
|
| I'll have a pic soon and better explanation, but It's a new type of sealing piston Im working on, and where the piston slides back is the pilot volume (obviously), but I don't want to restrict the flow by not having it open enough.
|
|
| Back to top |
|
|
| octane89 |
| Posted: 10/23/2007 11:23 AM Post subject: |
|
|
1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
|
Here's a pic to help get an idea of what Im doing.
| Description: |
| Here's what it looks like together. The cap and tee will be held together by a 4" coupling. |
|
| Filesize: |
36.66 KB |
| Viewed: |
498 Time(s) |
|
| Description: |
| Here's what I have so far. I haven't finished everything yet so so try to imagine it a bit. Hence why I did the paint drawing. |
|
| Filesize: |
345.1 KB |
| Viewed: |
58 Time(s) |
|
|
|
| Back to top |
|
|
| jackssmirkingrevenge |
| Posted: 10/23/2007 11:28 AM Post subject: |
|
|
space monkey
Joined: 15 Mar 2007
Posts: 6135
9088.81 Spud Bux
|
| Quote: | | Yes, too much pilot volume is a common problem. A larger pilot valve does help, though it's best to try to reduce this volume somehow, either by re-designing the valve or filling the volume with something (foam anyone?). |
words of reason, music to my ears 
Octane, the disc that seals with the barrel needs to be the same diameter as your rear disc otherwise it won't be stable and won't work.
|
|
| Back to top |
|
|
| octane89 |
| Posted: 10/23/2007 11:33 AM Post subject: |
|
|
1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
|
| Thats something I figured when I started to make the seals. But I have that part figured I believe. I was just gonna make it the same size, but cut away some of the unnessecary sections to allow it to "flow" back easier.
|
|
| Back to top |
|
|
| jackssmirkingrevenge |
| Posted: 10/23/2007 11:40 AM Post subject: |
|
|
space monkey
Joined: 15 Mar 2007
Posts: 6135
9088.81 Spud Bux
|
Apologies for the sh!te paintshop, but you mean like in the attachment? that would work well.
| Description: |
|
| Filesize: |
21.16 KB |
| Viewed: |
489 Time(s) |
|
|
|
| Back to top |
|
|
| octane89 |
| Posted: 10/23/2007 11:44 AM Post subject: |
|
|
1st Lieutenant
Joined: 11 Sep 2007
Posts: 273
224.26 Spud Bux
|
| Yea, essentially the same unless I cut it differently.
|
|
| Back to top |
|
|
| wangpushups |
| Posted: 11/24/2007 11:49 AM Post subject: |
|
|
Sergeant Major
Joined: 23 Sep 2007
Posts: 187
42.29 Spud Bux
|
| This helped me out a lot, thanks.
|
|
| Back to top |
|
|
| f.c |
| Posted: 12/11/2007 22:03 PM Post subject: |
|
|
Captain
Joined: 08 Jul 2007
Posts: 341
94.45 Spud Bux
|
| the coaxial design doesn't seem to be showing up just my luck considering i needed it.
|
|
| Back to top |
|
|
| Hawkeye |
| Posted: 12/11/2007 22:29 PM Post subject: |
|
|
Major
Joined: 21 Jan 2007
Posts: 353
985.20 Spud Bux
|
| Too bad that's the only coaxial diagram on here.
|
|
| Back to top |
|
|
| MrCrowley |
| Posted: 12/11/2007 22:39 PM Post subject: |
|
|
Blizzard of Ozz
Joined: 23 Jun 2006
Posts: 5650
1925.93 Spud Bux
|
| f.c wrote: | | the coaxial design doesn't seem to be showing up just my luck considering i needed it. |
The co-axial animation is working for me, your talking about the one on the front page right?
|
|
| Back to top |
|
|
| clide |
| Posted: 12/11/2007 23:36 PM Post subject: |
|
|
Donating Member
Joined: 06 Mar 2005
Posts: 650
1875.24 Spud Bux
|
| f.c wrote: | | the coaxial design doesn't seem to be showing up just my luck considering i needed it. |
Not sure why it wouldn't be working, Try this link
Also the theory behind all of them is the same, so using another one would probably still let you learn the concept.
|
|
| Back to top |
|
|
| f.c |
| Posted: 12/12/2007 1:52 AM Post subject: |
|
|
Captain
Joined: 08 Jul 2007
Posts: 341
94.45 Spud Bux
|
| thank you. its great to see a forum where people actually help each other out spudfiles get a 10/10 in my opinion.
|
|
| Back to top |
|
|
| anthony5640 |
| Posted: 01/12/2008 20:54 PM Post subject: |
|
|
Private
Joined: 24 Jul 2007
Posts: 3
8.79 Spud Bux
|
|
| Back to top |
|
|
|
|
