A working machine needs an engine, and if it doesn’t crank, it won’t start. For a machine to continue to produce, a dependable starting system must be built and working properly. Electric motors served as the main source of ignition for the combustion process in diesel engines for a very long time. An air or hydraulic motor can generate the torque required to start the engine for a variety of applications.

A pup engine, a miniature gas engine, was once frequently used to start diesel engines. An engine for a diesel vehicle can also be started with gasoline before switching to run on diesel fuel. This was a difficult solution for a simple problem because the engine needed a carburetor, a spark ignition system, and a device to change its compression ratio. Electric starters were developed when 12V electrical systems became more common and electric motor design improved.

Starting a diesel engine requires between 150 and 250 rpm of rotation. The torque required to reach the required minimum cranking speed is provided by the starting system. The crankshaft begins to revolve when the starter motor turns the flywheel, which then causes the pistons to begin to move.

Small four-cylinder engines don’t need a lot of beginning torque. To obtain the necessary cranking speed, however, a sizable amount of torque will be needed as engines develop bigger and have more cylinders. More than 200 ft-lb of torque can be generated by some heavy-duty 24V starters. The gear reduction between the ring gear on the engine’s flywheel and the pinion gear on the starter motor then multiplies the torque.

Let’s take a look at Top 5 Amazing Antique Engine Startups in the video below:

Source: Top Fives

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