Not since Clark Griswold polished his saucer to a high glean with cooking oil has there been such potential for winter speed. Looks like this crew of Swedes is just in the testing stages of their pulse jet ice sled but one can only imagine how fast this contraption will go when the throttle down and send it. Seriously looks like a Wiley Coyote approved project. Sounds incredible, will post more video when they send it for real:
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WHAT IS A PULSE JET:
A pulse jet is a type of jet engine that operates on the principle of pulsating combustion. Unlike traditional jet engines that have a continuous combustion process, pulse jets use intermittent bursts of combustion. These engines typically consist of an inlet, combustion chamber, and exhaust nozzle.
The operation of a pulse jet involves a cyclical process:
- Air Intake: Air is drawn into the combustion chamber through an inlet valve.
- Ignition: Fuel is then injected into the combustion chamber, and it is ignited. This ignition causes a rapid increase in pressure.
- Combustion: The combustion process occurs, producing a high-pressure pulse that travels down the combustion chamber.
- Exhaust: The high-pressure pulse exits the engine through the exhaust nozzle. This creates thrust that propels the vehicle or device forward.
- Cycle Repeats: The cycle repeats as the engine continues to draw in air, ignite fuel, and produce pulses of thrust.
Pulse jets are known for their simplicity and are often used in applications like model airplanes, experimental aircraft, and certain types of missiles. However, they are less fuel-efficient than other jet engine types and are not commonly used in commercial aviation.