Table of Contents
How does a 4 stroke SI engine work?
Four Stroke Cycle Engines. A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes (intake, compression, power, and exhaust) to complete one operating cycle. The piston make two complete passes in the cylinder to complete one operating cycle.
What is the working cycle of an engine?
The cycle includes four distinct processes: intake, compression, combustion and power stroke, and exhaust.
What are the four-stroke cycles of Otto cycle?
The four-stroke Otto cycle is made up of the following four internally reversible processes: 1–2, isentropic compression; 2–3, constant-volume heat addition; 3–4, isentropic expansion; and 4–1, constant-volume heat rejection.
Is 4-stroke and 4-cycle the same?
A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction.
Which engine works on Otto cycle?
The power produced by the Otto cycle is an energy developed per unit of time. The Otto engines are called four-stroke engines. The intake stroke and compression stroke require one rotation of the engine crankshaft. The power stroke and exhaust stroke require another rotation.
What is Otto cycle and Diesel cycle?
Otto cycle is used for petrol or spark ignition engine while diesel cycle is used for diesel or compression ignition engine. The main difference between Otto cycle and Diesel cycle is that in Otto cycle heat addition takes place at constant volume and in diesel cycle heat addition takes places at constant pressure.
What is the four-stroke cycle diesel engine?
The four-stroke Diesel engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning a crankshaft. A stroke refers to the full travel of the piston along with the cylinder in either direction.
How do a carburetor work?
The fuel is drawn into the carburetor by the vacuum created on the downstroke of the piston. As air accelerates through the Venturi, it creates a low pressure area and velocity of the intake air increases. This rapid acceleration causes the air and fuel to mix and vaporize.
How many cylinders is a 4-stroke?
Through every stroke made in a 4 cylinder engine, one cylinder is always in the power stroke and the rest are all at different positions than each other.
What is Joule’s cycle?
Joule Cycle is thermodynamic cycle using constant pressure heat addition and rejection. Fuel and compressor are used to heat and increase the pressure of the gas, the gas expands and spins the blade of the turbine which produces electricity.
What is valve and port?
Ports are passages that allow fluid to pass through the valve. Ports are obstructed by the valve member or disc to control flow. Valves most commonly have 2 ports, but may have as many as 20. The valve is almost always connected at its ports to pipes or other components.