4LB Thrust Thermojet Pulsejet Overview and Tutorial

This is a overview and tutorial video showing the Beck Technologies 4lb thrust thermojet.

The engine is a valveless pulsejet with no moving parts, and easily self starts on propane, just turn on the ignition and turn on the fuel....

A valveless pulsejet is a unique type of engine with no moving parts. Unlike ramjets, which must have air blown into them at high speed, either by a blower or by traveling very fast, pulsejets can run while completely still.

They can be throttled typically between 10% and 100% thrust in the blink of an eye, and dont require any spool up time like turbines or turbojets.

Because they have no moving parts, valveless pulse jets are much easier to own and operate than RC turbines. For the cost of a ducted fan setup, you could have your own real, high speed RC jet plane.

The truth is that by the time you add up turbojet planes engine weight, fuel and oil pump weight, the computerized control system, and any onboard starting systems, you not only have a small fortune invested in the plane, but its also quite heavy. Pulsejets can be made extremely light weight, and even valveless engines are capable of pumping their own liquid fuels by the venturi effect. All you then need is your standard reciever and servos and a small battery to power it, rather than a large battery to power a fuel pump.

Category:

Science & Technology

Tags:

• Pulsejet
• Pulse
• Jet
• Engine
• Valveless
• RC
• Turbine
• Turbojet
• Ramjet
• ducted
• fan
• remote
• control
• plane

[soverato3]

can it proppels a plane???

[BeckTechnologies]

Yes, they all can propel a plane

[airplanes717]

How does the spark plug keep sparking after you remove the wire?

[BeckTechnologies]

It doesnt, the engine re-ignites from the pressure pulses, go to our site and you will see a very informative flash animation.

[BeckTechnologies]

need a bigger one for a gokart, but they will work great.

[zakawho]

Where can I obtain the plans for this engine?

I'd like to build one myself.

[crafter2u]

seem it might be a good idea to have a flash back aresstor on the fuel line and the combustion chamber seem to get hot enough to almost melt

[ninja6kid]

do you have any plans for these engines??

[sebstclair]

@RCvehicleGuy LOL hahahaha :)

[RCvehicleGuy]

How come you didn't travel through time, is the flux capacitor malfunctioning?

[55dcyinely]

The augmenter is great for measuring thrust in a static position. But on a small Pulse jet engine that additional thrust is canceled out by the drag of the augmenter it's self. Just though I’d mention that.

[rcpratt95]

what are the dimensions of the intake tubes? and excellent pulse jet.

[bloki2009]

why don`t you try putting on an afterburner, on the second tube?