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Beck-Technologies 4lb Chinese Valveless
$225.00 USD + Shipping
Due to the ever increasing price of stainless, the price may increase in the future, although I try to keep things as reasonable as possible.
This thread is a copy of my ebay auction listings, you may see these engines on ebay, better known as feebay, but we do not have them listed 100% of the time, but you can still purchase directly through us using Paypal.
We can also do custom modifications of any of these, such as different materials, injection orifices, pressure taps, and heat exchange coils etc etc.
This engine package includes the "chinese" valveless pulsejet, spark plug, 16" of 1/4" DIA stainless fuel injector line, and Instruction CD. The engine is called the chinese valveless because a similar design was originally made by a motor company in china, the name has stuck ever since.
The engine has no moving parts, and is capable of producing over 4 pounds of thrust. Its slightly more complicated than the other types of engines, as it has more sections which need to be precisely made and therefor is slightly more expensive, but it is perfectly suited for RC vehicles, and easy to fuel with a single intake injector.
The engine is made from 20 gauge 304 stainless steel, and is heavy duty enough to run statically on high throttle for very long periods of time with no harm to the engine. It is entirely TIG welded, and tested 100% leak free.
The "chinese" valveless pulsejet is 31.5" long. It has a max diameter of 2" and a tail pipe diameter of 2". The engine is made from 20 gauge stainless steel, which gives it great strength but still keeps it at a light 1.8 pounds, more than enough power to weight ratio to fly with. Its long and narrow, which keeps the drag down, if you will be using it on a RC plane at high speed and want to boost your top speed even more, we can provide an aerodynamic stainless or aluminum bullet nose cone for the engine.
Each engine is made with the same flaring tools and welding jigs, ensuring each one is made to high tolerances and that there is zero "burn through" on any of the critical weld joints, making them smooth on the inside and very strong. Each engine is inspected and leak tested to make sure it is 100% leak free, and is guaranteed to run. The engine is brand new, never run, and will remain shiny like in the above picture until it is run, after running they will turn a golden brown color from the heat.
The engine also comes with a copy of the Beck-Technologies Pulsejet CD. The CD has the builders guides, pictures, video, tutorial videos, and plans how to build your own pulsejets, as well as lots of full size high quality digital pictures and tutorial videos detailing several ways to set up, and start the engine.
The fuel injector line is for propane, propane is the easiest of all the fuels to start with, it is self contained and able to be throttled by using the tank valve, more advanced hobbyists can make a simple injector for liquid fuels such as gasoline, kerosene, diesel fuel, methanol etc.
If you have any experience with liquid fueled rc vehicles you should have no problem setting up a small fuel pump and getting the engine to run on almost any liquid fuel.
If you have any other questions feel free to send an email.
Length: 31.5 / 80 cm
Max Diameter: 2" / 5 cm
Tail Diameter: 2" / 5 cm
Weight / Mass: 1.8 LBS / 810 grams
Thrust: 4 LBS / 1.8 Kg
Thrust Specific Fuel Consumption: 1.8 lbs fuel per lb thrust per hour with propane (approx 40% less when augmented)
Once again this engine package includes:
Stainless Chinese valveless pulsejet engine
16" of 1/4" Stainless fuel injector line for propane
Pulsejet Plans CD with pictures, video tutorials, plans to make your own engines, and more!
Extras you can purchase for this engine:
Display and mounting stand $15
Light weight aluminum thrust augmenter $40
Boxed model T push button ignition system with safety key $125
Shipping in the US will be by priority mail unless other shipping method is requested.
International shipping available by USPS Global Express Mail, which comes with tracking and insurance.
For international orders customs can sometimes be a delay, while the majority of items go through quickly and without incident, if you do not get your item in a timely manner do not wait weeks or months to to say anything!
Pulsejets, even small ones are absolutely not toys, they are for mature and responsible hobbyists. They get orange hot, and produce so much radiant heat that they can burn things close to them. They are also EXTREMELY loud. Pulsejets can be a fun and safe hobby if you follow a few simple safety rules like wearing hearing, and eye protection, and keeping the engine away from any flammable materials.