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the unburned charge in the cylinders explodes instead of burning normally.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoIf the ignition timing in a piston engine is too advanced, you will get detonation.
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How does a Cessna's engine work?
Cessna currently makes both piston-engined and turbine-powered aircraft. Assuming you mean a piston engined cessna, the engine works basically the same way as the engine in your car. Most small piston-engined aircraft use an air-cooled opposing 4 or 6 cylinder engine very similar to the engine in an old air-cooled volkswagen. Aside from that the other major differences are that aircraft engines usually use a solid-state magneto instead of an ignition coil, and that aircraft engines allow the operator to adjust fuel mixture levels en-route. The magneto is used so that the ignition system can be made independent of the aircraft's electrical system. Even if the electrical system fails entirely, the engine will keep running. The mixture control allows the pilot to adjust fuel mixture in-flight in order to compensate for the lower air pressures at high altitudes. If the aircraft were run at the same mixture all the time, as an auto generally does, the spark plugs would quickly become fouled by carbon and ash deposits.
What makes a ratteling noise in a car?
There are a number of causes for a rattling noise that occurs in a car. These include low oil and an engine that is faulty or going out.
What is the meaning of HMV in aircraft maintenance check?
This is the most comprehensive check for an airplane. It is also known as a Heavy Maintenance Visit (HMV). This check occurs approximately every 4-5 years. This is the check that, more or less, takes the entire airplane apart for inspection. This requires even more space and time than all other checks, and must be performed at a maintenance base.
Differece between backfire misfire?
"Backfire" and "misfire" are two distinct engine-related issues that can occur in internal combustion engines. Let's understand the difference between the two: Backfire: Backfire is a situation where the combustion process in the engine's cylinders occurs at an unexpected time or place. Instead of the normal progression of combustion from the intake stroke to the power stroke, unburnt fuel or exhaust gases ignite in the intake manifold or the exhaust system. This results in a sudden and loud popping or banging noise. Causes of Backfire: Timing issues: Incorrect ignition timing can lead to fuel igniting at the wrong time. Fuel-air mixture: A too-rich or too-lean fuel-air mixture can cause backfires. Faulty exhaust system: A damaged or leaking exhaust system may allow exhaust gases to ignite inappropriately. Backfires can be harmful to the engine and should be addressed promptly to prevent damage. Misfire: Misfire occurs when one or more cylinders in the engine fail to ignite the air-fuel mixture during the combustion process. As a result, the engine skips the power stroke in those cylinders, leading to a loss of power, rough idling, and potentially increased exhaust emissions. Causes of Misfire: Ignition problems: Faulty spark plugs, ignition coils, or ignition leads can prevent proper ignition. Fuel delivery issues: Problems with fuel injectors or fuel pressure can lead to inadequate fuel supply. Compression problems: Issues with cylinder compression, such as worn piston rings or valves, can cause misfires. Misfires can be intermittent or persistent, and diagnosing the underlying cause is essential to prevent further engine damage and restore normal engine operation.
What is a make or break engine?
A "make AND break engine" is an engine which controls power/speed by making (enabling) and breaking (disabling) the ignition cycle. In one classic design: One or more large flywheels are attached to the crankshaft. A flyweight governor is also attached to the crankshaft. When the shaft speed slows, the flyweight falls inward, releasing a mechanism which allows the exhaust valve to open. When the piston rises to the cylinder head, the exhaust is pushed out. When the piston pulls back, suction is created. a check valve (one-way valve) in the exhaust closes. That resulting suction opens the intake valve and draw fuel/air mix in. The piston then compresses, ignition occurs, and we get a power stoke. This kicks the crankshaft speed back up. The flyweight pushes out, covering the exhaust valve, and thus blocking further engine cycles. The flywheel, crankshaft, and piston run free, on momentum, until shaft speed slows again, and the process repeats. This is in contrast to most modern engines, which vary speed/power with a throttle, limiting and increasing fuel/air mix, but keeping the ignition cycle active at all times.
What is a knock sensor?
A knock sensor is a device that senses detonation. Detonation occurs in the engine when the fuel begins to burn prematurely; it can cause substantial damage to the engine.
What is knock sensor?
A knock sensor is a device that senses detonation. Detonation occurs in the engine when the fuel begins to burn prematurely; it can cause substantial damage to the engine.
What type of nuclear detonation occurs below 100000 ft?
airburst
What type of nuclear detonation occurs above feet and generates?
High-altitude burst
What type of nuclear detonation occurs above one hundred thousand feet?
High-altitude burst
Which type of nuclear detonation occurs below 100'000 feet with a fireball that does not touch the ground?
air burst
Nuclear detonation occurs above 100.000 feet and generates a high-energy pulse?
high altitude burst
'Which type of nuclear detonation occurs below hundred thousand feet with a fireball that does not touch the ground?
air burst
How you can now if the engine is internal combustion or external combustion while it is not working?
By looking at the build of it. If it's a gas turbine, jet engine, ramjet, or rocket motor, then it's not internal combustion. If it uses pistons in enclosed cylinders, then the combustion occurs internally, within the engine housing. Hence, that would be an internal combustion motor. a reciprocating steam engine is external combustion even though it has enclosed cylinders
What is negative slip in a reciprocating pump?
when actual flow(Qact) in pump is greater than theoretical flow (Qth) then negative slip occurs....
Which type of nuclear detonation occurs above 100,000 feet and generates a high energy electromagnetic pulse?
high-altitude burst
What type of nuclear detonation occurs above 100'000 feet and generates a high energy electromagnet pulse?
high-altitude burst
