Search found 13 matches

by gone2fly
Fri Jun 17, 2011 11:40 pm
Forum: Valved pulsejet forum
Topic: PULSEJET SILVERJET PROBLEMS....
Replies: 5
Views: 1598

Re: PULSEJET SILVERJET PROBLEMS....

I am not 100% sure what you are asking. I think your jet only runs when you blow air into it. Hose to fuel tank needs to be short. Fuel tank OUTLET needs to be about 15 mm below engine INLET. Fuel injecter might be bad. Fuel injector hole might be plugged or have dirt in hole. Reed valves might be d...
by gone2fly
Fri Jun 17, 2011 2:21 pm
Forum: Valved pulsejet forum
Topic: O.S. replacement valves
Replies: 9
Views: 1698

Re: O.S. replacement valves

it comes with 2. i would like quite a few so i don't have to worry about finding more. they last about 30 min each right? If you send me the head with the reed valve retainer I can make a new better design retainer and the reed valves will last 40 hours. Only problem I am moving my shop across town...
by gone2fly
Tue Jun 14, 2011 6:27 pm
Forum: Valved pulsejet forum
Topic: O.S. replacement valves
Replies: 9
Views: 1698

Re: O.S. replacement valves

How many reed valves do you want?
by gone2fly
Thu Mar 24, 2011 7:37 pm
Forum: Valved pulsejet forum
Topic: Looking for Reed valves for Dynajet
Replies: 13
Views: 8203

Re: Looking for Reed valves for Dynajet

Hello, All, A word of caution may be in order for anyone who intends to use tin snips for cutting reed valves from spring steel. Such cuts usually deform the metal near the cuts and interfere with their ability to seal. All valves made by that method MUST be flattened and their edges smoothed so th...
by gone2fly
Mon Jan 03, 2011 1:38 am
Forum: Valved pulsejet forum
Topic: Which fuel produces the most thrust?
Replies: 3
Views: 1958

Re: Which fuel produces the most thrust?

I have never used an augmentor.

What is the correct way to build one?

What is the correct way to attach it to the engine?

How do you determine correct size for each engine?
by gone2fly
Sun Jan 02, 2011 12:46 am
Forum: Valved pulsejet forum
Topic: Which fuel produces the most thrust?
Replies: 3
Views: 1958

Which fuel produces the most thrust?

I have been doing a lot of reading and collected a lot of information. This information is not very clear. I know race car engines running on alcohol produce more power than gas the information below must be for a given quantity weight of fuel. Race cars have to burn more alcohol to get more power. ...
by gone2fly
Fri Sep 25, 2009 5:34 pm
Forum: Valved pulsejet forum
Topic: Pulso-1 Plans metric does not = inches ???
Replies: 3
Views: 1558

Pulso-1 Plans metric does not = inches ???

I am looking at the Pulso 1 plans. Demensions are all in mm, the inch numbers written next to the metric numbers are not equal to the metric numbers. What is the deal with that? Example tail pipe ID is listed as 45 and the OD is listed as 48, I assume that is mm. 45mm = 1.771" 48mm = 1.889" 1 53/64 ...
by gone2fly
Thu Sep 24, 2009 7:56 pm
Forum: Valved pulsejet forum
Topic: Best Fuel
Replies: 13
Views: 4541

Re: Best Fuel

I have done some experements with fuel. If you pressurize a soft drink with CO2 the liquid is adsorb the CO2. If you pressurize gasoline with acetylene it will adsorb the acetylene just like the soft drink does. So I got to wondering if other fuels would do that too??? You do not want to use acetyle...
by gone2fly
Wed Sep 23, 2009 8:03 pm
Forum: Valved pulsejet forum
Topic: Old pulse jet engine ???
Replies: 16
Views: 8549

Old pulse jet engine ???

Check out his pictures. I know someone that found one of these engines in a box of junk and is asking questions about it. I saw one of these engines on this forum yesterday with pictures with a box but I can not find it anymore. Does anyone know where to find the thread about this engine. http://www...
by gone2fly
Wed Sep 23, 2009 3:27 am
Forum: Valved pulsejet forum
Topic: Argus Reed Valve Pics
Replies: 1
Views: 2627

Argus Reed Valve Pics

This is a small 3" square argus valve I built for a 10 lb thrust pulse jet engine that I built. The engine fired up real easy on 2 psi propane gas and I throttled it up to 30 psi. It stired up a pretty good tornado of dust in my work shop and blew stuff off the work bench. The reed valves only laste...
by gone2fly
Mon Sep 21, 2009 10:52 pm
Forum: Valved pulsejet forum
Topic: External valve grid
Replies: 45
Views: 1672187

Re: External valve grid

It looks like you have it running now. What did you do to fix the problem?
by gone2fly
Sun Sep 20, 2009 2:30 pm
Forum: Valved pulsejet forum
Topic: How to Design Build and Test Pulse Jet Engine.
Replies: 15
Views: 11453

Re: How to Design Build and Test Pulse Jet Engine.

That is a cool looking engine. If I had seen it on ebay I would have bid on it. I check ebay from time to time. I have not been on ebay all summer. It is hard to tell from the picture but it looks like the tip end of the exhaust is smaller. The Germans learned the combustion pressure has to be no le...
by gone2fly
Sat Sep 19, 2009 11:17 pm
Forum: Valved pulsejet forum
Topic: How to Design Build and Test Pulse Jet Engine.
Replies: 15
Views: 11453

How to Design Build and Test Pulse Jet Engine.

I have been building pulse jet engines for 32 years. Now that I am retired I can build them full time. I have a book, english translation of the 10+ years of research the Germans did to learn how to build a working pulse jet engine. The engines are a lot more complicated than they seem. The entire e...