why max torque and max speed does not occur at same RPM in any engine?

Answer 1

One is inversely proportional to the other…Torque is a measure of resistance.. And at higher rpm… that is less due to Mr. Newton… an object in motion tends to stay in motion. That about sums it up to me.

Answer 2

Torque is simply the amount of twisting force produced by the engine. Power is a derivative of torque (torque vs. time)...the speed with which the engine can produce that torque. A large displacement diesel engine from a tractor trailer runs at low RPM and makes relatively little power for it's size, but it generates an incredible amount of torque. Conversely, a small displacement F1 racing engine runs at super high RPM and makes a lot of power with very little torque because it can apply the torque so quickly.

Answer 3

Howard hasn't a clue what he's speaking approximately and is very probably an American. confident, cruising on the engine's top torque is stable for gas financial equipment and you will discover that in the time of applicable kit maximum vehicles will certainly do this at approximately 60-70mph. A small petrol engine is, via nature, a stronger revving factor than a huge Diesel and could have a stronger top torque rpm than the Diesel. Cruising at 3300rpm in a 1000cc Seat will do it no injury in any respect and it could nevertheless do over 40mpg. attempt cruising in that at 1700rpm and you would be fortunate while you're pulling 40mph. Edit: LOL @ Nomad...yet another Yank little question. Do you human beings on no account examine decrease back what you have in basic terms written? "floor the throttle at that rpm" WTF does that recommend? we are speaking with regards to the top torque of an engine, which watching the engine's traits, length, bmep, despite if or not it extremely is a rapid, or a Diesel, will in many circumstances be someplace around 0.5 the top capacity rpm, which would be around 3500rpm for a small petrol engine and 1700rpm for a rapid Diesel. those will then be the speeds at which the engine is working at optimum performance, thereby producing optimum gas financial equipment.

Answer 4

Power is measured as torque multiplied by rotational speed (RPM).

Generally speed on an engine can be determined by RPM since the rotation of the engine is transferred to the wheels via the drive train.

For a given power the more RPM you have the less torque.

Imagine a one gear car. For a given power of the car you would lose torque as your RPM increased.

Answer 5

simply said, torque gets you moving, rpms make you go faster and you can build an engine that will have both the torque curve and horsepower curves almost identical

Answer 6

Here's a really good article covering the issue of torque, rpm and horsepower.

http://www.g-speed.com/pbh/torque-and-hp.html