Chapter 9, Problem 9.1E

To determine

Diesel engines produce high torque than gasoline engines.

Answer to Problem 9.1E

Diesel engines produce more torque as a result of a higher compression ratio (longer stroke and turbocharger), which results in greater acceleration off the line. This acceleration, though, is only fleeting because the torque in diesel cars is dispersed over a much smaller region and their power band is considerably smaller.

Explanation of Solution

Torque:-

The force that can cause an object to rotate along an axis is measured as torque.

Diesel-Engine:-

Diesel engines work by compressing and heating air to a high pressure and temperature before injecting a little amount of fuel into it.

Gasoline- Engine:-

A gasoline engine creates combustion by injecting a mixture of air and fuel into the cylinders.

Reason:-

• The diesel engine's longer strokes enable the piston to be moved farther, generating more force.
• The amount of torque generated by the wheels increases as cylinder pressure increases.
• High Compression Ratio, which is just the ratio between the cylinder's highest and minimum volumes.
• Compared to comparable gasoline engines, turbo-diesels typically operate at greater turbocharger boost settings.
• The amount of torque acting through the crankshaft increases as more energy is transmitted through to pressure on the piston with each combustion of diesel.