Power has a four cylinder four stroke diesel engine, flywheel speed is 3000r / min, (is this v?) when the piston of each cylinder completes a power stroke There is a four cylinder, four stroke diesel engine, The flywheel speed is 3000r / min, (is this v?) The piston of each cylinder does 400j of work when it completes a power stroke Calculate the power of the diesel engine Homework is due tomorrow Please use the formula and analyze it as much as possible

Power has a four cylinder four stroke diesel engine, flywheel speed is 3000r / min, (is this v?) when the piston of each cylinder completes a power stroke There is a four cylinder, four stroke diesel engine, The flywheel speed is 3000r / min, (is this v?) The piston of each cylinder does 400j of work when it completes a power stroke Calculate the power of the diesel engine Homework is due tomorrow Please use the formula and analyze it as much as possible

3000r / min = 50R / S
The diesel engine has two strokes per revolution. Total stroke: 50 * 2 = 100
The four stroke single cylinder diesel engine has one power stroke in every four strokes, and the total number of power strokes is 100 / 4 = 25
Work done by four stroke single cylinder diesel engine: w = 400j * 25 = 10000j
The work time is 1s, power P = w / T = 10000j / 1s = 10000w

A single cylinder four stroke diesel engine, its flywheel speed is 800r / min, and the power stroke pushes the piston to work 1500j at a time, so what is the power of the diesel engine______ W．

The speed of flywheel is 800r / min, ∵ the piston reciprocates twice in one working cycle, the crankshaft rotates for two cycles, the work is done once, ∵ the diesel engine does 400 times of external work in one minute; the total work done by the diesel engine in one minute is w = 400 × 1500j = 6 × 105J, and the power of the diesel engine is p = wt = 6 × 105j60s = 1 × 104w

When the flywheel speed of a single cylinder four stroke diesel engine is 1800r / min, how many strokes and how many times of work can the diesel engine complete in 1s?
I have 60 answers, 15 times

First of all, the speed of the flywheel is equal to that of the crankshaft. That is to say, the speed of the crankshaft is also 1800r / min, and the unit converted into seconds is 1800 / 60 = 30R / s
Every 720 ° rotation of the crankshaft of a four stroke diesel engine is a cycle. One cycle includes four strokes: intake compression power exhaust. That is to say, there are four strokes in two circles of a cycle, and the work is done once
Thus, the stroke completed in 1s: (30 / 2) * 4 = 60.1s number of work done: 30 / 2 = 15
I hope it will help you