Search found 79 matches

by ZSartell
Wed Aug 01, 2018 2:02 am
Forum: Valved pulsejet forum
Topic: dynamic modeling of a strip valve
Replies: 144
Views: 2856056

Re: dynamic modeling of a strip valve

I would really like to read through this thread in its entirety, but without the pictures and diagrams I am lost. Does anyone have these to share?
by ZSartell
Tue Dec 23, 2008 12:14 pm
Forum: Valveless pulsejet forum
Topic: Metal Fume Fever
Replies: 9
Views: 4458

Metal Fume Fever

Hello all, I have not participated in this forum for a long time as I have been pursuing other hobbies (blacksmithing). I have a video of one of my pulse jets on You Tube and get many comments on it daily. Just moments ago I got a video response from some one that is selling a home built Lockwood ty...
by ZSartell
Thu Jul 05, 2007 6:51 pm
Forum: Valveless pulsejet forum
Topic: Pulse jet go-kart for sale
Replies: 0
Views: 1613

Pulse jet go-kart for sale

I know I haven't been here in a long time. I've been too busy to continue my pulse jet experiments. If anyones interested, I am selling my large pulse jet and go-kart on e-bay. Thanks. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=017&sspagename=STRK%3AMESE%3AIT&viewitem=&item=270142332073&rd=1&r...
by ZSartell
Thu Apr 05, 2007 5:47 pm
Forum: Valveless pulsejet forum
Topic: 50 lbF 'Lady Astor' Not For Beginners
Replies: 184
Views: 63228

Larry, my favorite part is the sweatervest! But besides that the rest looks great. Do you think there are any large restrictions on top speed concerning the intake design?
by ZSartell
Tue Apr 03, 2007 5:27 pm
Forum: Tools and Construction
Topic: Cool weld fittings
Replies: 1
Views: 2272

It's a Pulse Jet builders mail order Home Depot.
Oooooo... Shiny....
by ZSartell
Thu Mar 22, 2007 8:33 pm
Forum: Valveless pulsejet forum
Topic: Let's make valveless turbine bicycles!
Replies: 56
Views: 22165

Mike, I really like the idea. A little crazy, but I bet it would be a head turner!
by ZSartell
Fri Feb 16, 2007 9:08 pm
Forum: Valved pulsejet forum
Topic: Making pulsejet noises in Muncie
Replies: 6
Views: 4031

Thanks Jerry,

$20 seems more than reasonable to me. I look forward to hearing more about this.
by ZSartell
Fri Feb 09, 2007 12:49 pm
Forum: Valved pulsejet forum
Topic: New project on the go
Replies: 5
Views: 3058

Sorry Canadian, you haven't seen any pulse jets out of aluminum because they will melt, plain and simple. Stick with regular steel for a prototype engine and then build it out of Stainless. The stainless will polish up real nice for you.
by ZSartell
Thu Feb 08, 2007 7:55 pm
Forum: Valveless pulsejet forum
Topic: Super Simple Heat-Recovery Ram Air Augmentors
Replies: 4
Views: 2331

Nice work Larry. I have wanted to test this type of augmenter for a while, but never got around to it. I am just wondering how well it would work on a valveless engine. This will increase the airflow at the lip of the exhaust, hopefully supplying a stronger breath of fresh air during the intake phas...
by ZSartell
Tue Feb 06, 2007 7:17 pm
Forum: Valved pulsejet forum
Topic: New project on the go
Replies: 5
Views: 3058

Canadian, I just thought I'd put my 2 cents in again. Do not waste your time making a pulse jet out of copper or brass. Use mild steel or stainless, they will hold up a lot better. You should be aware that breathing brass fumes is very unhealthy to begin with whether it's when you are welding it or ...
by ZSartell
Mon Feb 05, 2007 9:43 pm
Forum: Valveless pulsejet forum
Topic: fwe running, but not to well
Replies: 4
Views: 2192

Well, you could heat it with a torch and find a ball peen hammer to flare it while it's hot.
by ZSartell
Mon Feb 05, 2007 5:03 pm
Forum: Valveless pulsejet forum
Topic: fwe running, but not to well
Replies: 4
Views: 2192

An engine that small is not as forgiving with construction defects. You'll want to remove any burrs from inside the intake, make sure your intake flare is optimal and make sure there are no leaks in the engine. You'd be surprised as to what can make or break your engine from not running.
by ZSartell
Fri Feb 02, 2007 2:50 pm
Forum: Valved pulsejet forum
Topic: Will not start
Replies: 10
Views: 6624

Sort of... Get a BBQ tank and regulator. Take the regulator part off of the line (all you need is the adapter to connect to the tank) and get some pipe fittings to fill up it's place and that will adapt to a copper line (or whatever you want to use to run to the engine's injector). (the regulator is...
by ZSartell
Thu Feb 01, 2007 2:31 pm
Forum: Valved pulsejet forum
Topic: Will not start
Replies: 10
Views: 6624

You might not be getting enough fuel. If you are just using a small propane bottle by taking the nozzle off the burner and sticking on a rubber hose, you will never get enough fuel out of that. The orface of the burner is much too small to feed a decent size engine. Also remember that when you use a...
by ZSartell
Thu Feb 01, 2007 4:43 am
Forum: Valved pulsejet forum
Topic: Will not start
Replies: 10
Views: 6624

Canadian, Looks like a decent first build. My first running Pulse Jet was made by using a spare reed cage I had for my old dirt bike, but I modified it to use .006" spring steel reeds. First I would suggest installing a spark plug and igniting inside the cumbustion chamber. An alternative I use freq...