What is the motoring curve?

What does motoring an engine mean?

1. Something, such as a machine or an engine, that produces or imparts motion. 2. A device that converts any form of energy into mechanical energy, especially an internal-combustion engine or an arrangement of coils and magnets that converts electric current into mechanical power.

What are the stages of combustion?

Different significant phases of combustion are explained as under. 1) Ignition Delay Period • Physical delay • Chemical Delay 2) Uncontrolled Combustion 3) Controlled Combustion 4) After Burning Page 3 • Injection of fuel in atomized form is initiated into the combustion space containing compressed air.

What causes combustion in diesel engine?

After the piston compresses the fuel-air mixture, the spark ignites it, causing combustion. The expansion of the combustion gases pushes the piston during the power stroke. … Diesel engines then spray the fuel into the hot compressed air at a suitable, measured rate, causing it to ignite.

Why do Americans call engine motor?

Rooted in the concept of motion, “motor” was the logical choice, and by 1899, it had entered the vernacular as the word for Duryea and Olds’ newfangled horseless carriages. “Engine” is from the Latin ingenium: character, mental powers, talent, intellect, or cleverness.

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Which has more torque electric or diesel?

Diesel engines produce torque in about the same way, except due to having a higher compression ratio, and because the fuel stores more energy than gas, diesel engines often produce greater torque. As EVs don’t require fuel, they don’t produce torque through combustion.

Which is better engine or motor?

Also, combustion engines are less efficient compared to electric motors, which means they use more energy to drive the vehicle.

Advantages a. Higher energy density b. Less refueling time a. No carbon emissions b. Instant torque

Will fire continue in the absence of oxygen?

Without sufficient oxygen, a fire cannot begin, and it cannot continue. With a decreased oxygen concentration, the combustion process slows. Oxygen can be denied to a fire using a carbon dioxide fire extinguisher, a fire blanket or water.

What are the three important things needed of combustion to occur?

Oxygen, heat, and fuel are frequently referred to as the “fire triangle.” Add in the fourth element, the chemical reaction, and you actually have a fire “tetrahedron.” The important thing to remember is: take any of these four things away, and you will not have a fire or the fire will be extinguished.

What is abnormal combustion?

In Internal combustion engines, abnormal combustion is a significant phenomenon associated with the combustion processes on which the life and performance of the engine depends. The two important abnormal combustion phenomenons are 1. KNOCK and 2. SURFACE IGNITION.