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What is peak pressure inside the engine?
Peak pressure inside an engine refers to the maximum pressure achieved during the combustion process within the cylinder. This typically occurs shortly after the fuel-air mixture is ignited and rapidly expands, exerting force on the piston. Peak pressure is a critical factor in engine performance and efficiency, influencing power output and emissions. It varies depending on engine design, fuel type, and operating conditions.
Why is four stroke ingine is internal combustion?
A four-stroke engine is classified as an internal combustion engine because it generates power through the combustion of fuel and air within a confined space, typically the engine's cylinders. During its operation, the engine goes through four distinct strokes: intake, compression, power, and exhaust, all occurring within the cylinder. This internal process allows the engine to convert the chemical energy from fuel into mechanical energy, driving the vehicle or machinery. The combustion occurs internally, hence the term "internal combustion engine."
What occurs in a steam engine?
Water is heated to produce steam. The steam is used to power the engine. The power from the engine does the work or powers other instruments that do the work.
Which stage occurs just before the ignition in an internal combustion engine?
Compression
What is highest temperature allowable in a standard engine before damage occurs?
242
What is car engine knocking?
When the fuel in an engine cylinder ignites prematurely or unevenly to cause power fluctuations and a "knocking" sound. usually occurs when an engine is very how or improperly timed.
What does a locked engine on a car mean?
if by locked u mean seized, then it means the engine cannot be used. this occurs when the pistons become "stuck" to the cylinder walls
Operating principle of gasoline direct injection engine?
injection of fuel at high pressure is done directly into the cylinder where combustion occurs.
What causes Engine knock jeep?
Engine knock happens when an unbalanced air and fuel combination occurs inside of an engine cylinder. If the problem is not corrected the vehicle runs the risk of having a piston malfunction.
What is motoring curve in si engine combustion stages?
Motoring curve is Cylinder pressure Vs crank angle curve, which is observed when no firing occurs into the cylinder that means the pressure which build inside the cylinder is basically due to the compression of the fresh air charge going into the cylinder.
What does miss fire mean for a check engine light?
A mis fire occurs when the fuel/vapor mixture does not ignite and burn properly in a cylinder.
Will a cracked cylinder head cause bubbles in the coolant?
Yes, a cracked cylinder head can cause bubbles in the coolant. This occurs because the crack may allow combustion gases to escape into the coolant system, leading to the formation of bubbles. Additionally, the crack can create a coolant leak, further disrupting the cooling system's efficiency. It's important to address this issue promptly to prevent engine overheating and further damage.
Where on the cylinder walls does the greatest amount of wear occur?
The greatest amount of wear on cylinder walls usually occurs at the very top of the cylinder, near the combustion chamber. This area is exposed to the highest temperatures and pressures during the engine's operation, leading to increased wear.
How convection, conduction and radiation occur in an engine?
In an engine, convection, conduction, and radiation can all play important roles in heat transfer. Convection: Convection is the transfer of heat through the movement of fluids (liquids or gases). In an engine, convection occurs primarily in the cooling system. Coolant fluid circulates through passages in the engine block and cylinder head, absorbing heat from the engine components. As the heated coolant flows away from the engine, it carries the heat with it, and then it is cooled down in the radiator before returning to the engine. This cycle helps to regulate the engine's temperature and prevent overheating. Conduction: Conduction is the transfer of heat through direct contact between materials. In an engine, conduction occurs in various components where there is direct physical contact between hot and cold surfaces. For example, heat is conducted from the combustion chamber to the cylinder walls and then to the engine block. Similarly, heat is conducted from the cylinder head to the engine block and to the cooling system components. Good thermal conductivity of materials used in engine construction helps to efficiently transfer heat away from critical components. Radiation: Radiation is the transfer of heat through electromagnetic waves. In an engine, radiation occurs as heat is emitted from hot surfaces in the form of infrared radiation. This radiation can be absorbed by cooler surfaces within the engine compartment or can escape into the surroundings. However, radiation is generally a less significant mode of heat transfer in engines compared to convection and conduction. Overall, a combination of these three mechanisms helps to manage the heat generated by combustion and friction within the engine, ensuring that it operates within safe temperature limits and remains efficient.
What occurs due to repeated heating and cooling of air?
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Which stage occurs just before ignition in an internal combustion engine?
The stage that occurs just before ignition in an internal combustion engine is the compression stroke. During this stage, the piston moves upward in the cylinder, compressing the air-fuel mixture, preparing it for combustion when the spark plug ignites the mixture.
How do you read timing gun?
Pulses of light blink every time the cylinder which the timing gun is hooked up to fires. Typically, a timing gun is hooked up to cylinder #1. When that cylinder fires, a pulse of light occurs. The timing gun it to be aimed at a marking on the front of the engine, usually the harmonic balancer. By looking at the mark, you can determine how advanced (ahead) or retarded (behind) the engine is running. This is usually measured in degrees.
