Re: PWM Valves...Where are they??? Who makes them?
- From: PK5 <pkroko@xxxxxxxxxxx>
- Date: Sun, 20 Jan 2008 11:58:16 -0800 (PST)
On Jan 20, 7:59 am, Jerry Avins <j...@xxxxxxxx> wrote:
PK5 wrote:
Hello.
PWM is a low-dissipation way to modulate a current, in this case, the
current that actuates a valve. You want a valve that regulates flow in
proportion to its control current, and then use a PWM driver (or a mag
amp or an Amplidyne for all the valve cares) to control it.
Jerry
--
Engineering is the art of making what you want from things you can get.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯- Hide quoted text -
- Show quoted text -
So what you saying is know-one makes an all in one PWM proportionally
controlled valve. Certainly my research validates that, but I'm
befuddled as to why. I've seen 2 for my specific application but they
seemed ridiculously over priced when compared to a simple fuel
injector (which I believe is a PWM of sorts).
People on forums talk about them ("PWM valve") in such an offhand way,
I just figured I could go out and find off the shelf PWM/proportional
valve and cob something together for much less.
Here's what's out there for my specific to my app.
http://www.vividracing.com/catalog/aquamist-high-speed-stainless-inline-valve-universal-p-22642.html
http://coolingmist.com/detailmain.aspx?pid=S-HSV
The former resembles thin I've seem on online catalogues. The latter
just looks like a small custom manifold with 2 tiney solenoids
Anyway thanks for the reply.
PK
.
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